From a70d6b80aaa3d094febe7ec64a3091f061378306 Mon Sep 17 00:00:00 2001 From: Joe Fiorini Date: Tue, 27 Jan 2015 15:27:03 -0500 Subject: [PATCH 01/13] Initial setup of broccoli build --- Brocfile.js | 135 + .../static/lib/angular-scheduler/bower.json | 2 +- .../lib/angular-tz-extensions/bower.json | 2 +- awx/ui/static/lib/less.js/.bower.json | 29 - awx/ui/static/lib/less.js/build.gradle | 347 - awx/ui/static/lib/less.js/dist/less-1.1.0.js | 2695 ----- .../static/lib/less.js/dist/less-1.1.0.min.js | 16 - awx/ui/static/lib/less.js/dist/less-1.1.1.js | 2710 ----- .../static/lib/less.js/dist/less-1.1.1.min.js | 16 - awx/ui/static/lib/less.js/dist/less-1.1.2.js | 2712 ----- .../static/lib/less.js/dist/less-1.1.2.min.js | 16 - awx/ui/static/lib/less.js/dist/less-1.1.3.js | 2721 ----- .../static/lib/less.js/dist/less-1.1.3.min.js | 16 - awx/ui/static/lib/less.js/dist/less-1.1.4.js | 2769 ----- .../static/lib/less.js/dist/less-1.1.4.min.js | 16 - awx/ui/static/lib/less.js/dist/less-1.1.5.js | 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awx/ui/static/lib/socket.io-client.old/test/index.js delete mode 100644 awx/ui/static/lib/socket.io-client.old/test/support/env.js delete mode 100644 awx/ui/static/lib/socket.io-client.old/test/support/server.js delete mode 100644 awx/ui/static/lib/socket.io-client.old/test/url.js diff --git a/Brocfile.js b/Brocfile.js new file mode 100644 index 0000000000..5bbaf48bc6 --- /dev/null +++ b/Brocfile.js @@ -0,0 +1,135 @@ +var mergeTrees = require('broccoli-merge-trees'); +var uglifyFiles = require('broccoli-uglify-sourcemap'); +var concatFiles = require('broccoli-sourcemap-concat'); +var pickFiles = require('broccoli-static-compiler'); +var findBowerTrees = require('broccoli-bower'); + +var vendorMin = pickFiles('awx/ui/static/lib', { + srcDir: '/', + destDir: 'out', + files: [ + 'jquery/dist/jquery.min.js', + 'angular/angular.min.js', + 'angular-route/angular-route.min.js', + 'angular-resource/angular-resource.min.js', + 'angular-cookies/angular-cookies.min.js', + 'angular-sanitize/angular-sanitize.min.js', + 'angular-md5/angular-md5.min.js', + 'jquery-ui/jquery-ui.min.js', + 'bootstrap/dist/js/bootstrap.min.js', + 'js-yaml/dist/js-yaml.min.js', + 'select2/select2.min.js', + 'angular-animate/angular-animate.min.js', + 'angular-tz-extensions/packages/jstimezonedetect/jstz.min.js', + 'socket.io-client/dist/socket.io.min.js', + 'd3js/build/d3.v3.min.js', + 'novus-nvd3/nv.d3.min.js' + ] +}); + +var sourceMaps = pickFiles('awx/ui/static/lib', { + srcDir: '/', + destDir: 'out', + files: [ + 'angular-animate/angular-animate.min.js.map', + '**/*.min.js.map', + '**/*.min.map' + ] +}); + +vendorMin = concatFiles(vendorMin, { + sourceMapConfig: { + enabled: false + }, + outputFile: '/out/vendor-min.js', + inputFiles: ['out/**/*.js'] +}); + +var vendorMaps = concatFiles(sourceMaps, { + sourceMapConfig: { + enabled: false + }, + outputFile: '/out/vendor-min.js.map', + inputFiles: ['out/**/*.map'] +}); + +var vendorMinWithMaps = mergeTrees([vendorMin, vendorMaps]); + +var vendor = pickFiles('awx/ui/static/lib', { + srcDir: '/', + destDir: 'out', + files: [ + 'angular-codemirror/lib/AngularCodeMirror.js', + 'timezone-js/src/date.js', + 'underscore/underscore.js', + 'rrule/lib/rrule.js', + 'rrule/lib/nlp.js', + 'angular-tz-extensions/lib/angular-tz-extensions.js', + 'underscore/underscore.js', + 'angular-scheduler/lib/angular-scheduler.js', + 'angular-filters/dist/angular-filters.js', + 'bootstrap/dist/js/bootstrap.js', + 'codemirror/lib/codemirror.js', + 'd3Donut/d3Donut.js', + 'jPushMenu/jPushMenu.js', + 'jQuery.dotdotdot/src/js/jquery.dotdotdot.js', + 'jquery-ui/jquery-ui.js', + 'js-yaml/dist/js-yaml.js', + 'lrInfiniteScroll/lrInfiniteScroll.js', + 'scrollto/lib/jquery-scrollto.js', + 'select2/select2.js', + 'sizzle/dist/sizzle.js', + ] +}); + +function uglifyFast(tree, opts) { + opts = opts || {}; + opts.compress = false; + opts.mangle = false; + opts.sourceMapIncludeSources = false; + return uglifyFiles(tree, opts); +} + +function uglifySlow(tree) { + return uglifyFiles(tree); +} + +var ansibleLib = pickFiles('awx/ui/static/lib/ansible', { + srcDir: '/', + destDir: 'out' +}); + +var src = pickFiles('awx/ui/static/js', { + srcDir: '/', + destDir: 'out' +}); + +var filesToConcat = mergeTrees([vendor, ansibleLib, src]); + +console.log('here1'); +var concated = concatFiles(filesToConcat, { + outputFile: '/out/tower-concat.js', + inputFiles: ['out/**/*.js'] +}); +var merged = mergeTrees([vendorMinWithMaps, concated], { + description: "TreeMerge (vendor and sourcemaps)", +}) +var minified = uglifyFast(merged, { + outSourceMap: 'tower-concat.min.map' +}); + +var finalMap = pickFiles(minified, { + srcDir: '/out', + destDir: '', + files: ['tower-concat.map'] +}); + +var finalized = concatFiles(minified, { + sourceMapConfig: { + enabled: false + }, + outputFile: '/tower-concat.min.js', + inputFiles: ['out/*.js'] +}); + +module.exports = mergeTrees([finalMap, finalized]); diff --git a/awx/ui/static/lib/angular-scheduler/bower.json b/awx/ui/static/lib/angular-scheduler/bower.json index d706b50d34..b1380e4ae8 100644 --- a/awx/ui/static/lib/angular-scheduler/bower.json +++ b/awx/ui/static/lib/angular-scheduler/bower.json @@ -30,7 +30,7 @@ "angular-tz-extensions": "*" }, "homepage": "https://github.com/chouseknecht/angular-scheduler", - "main": "git@github.com:chouseknecht/angular-scheduler.git", + "main": "./lib/angular-scheduler.js", "keywords": [ "schedule", "rrule", diff --git a/awx/ui/static/lib/angular-tz-extensions/bower.json b/awx/ui/static/lib/angular-tz-extensions/bower.json index 5384a14404..6ed7c394b3 100644 --- a/awx/ui/static/lib/angular-tz-extensions/bower.json +++ b/awx/ui/static/lib/angular-tz-extensions/bower.json @@ -1,7 +1,7 @@ { "name": "angular-tz-extensions", "version": "0.3.10", - "main": "js/angular-timezones.js", + "main": "./lib/angular-tz-extensions.js", "ignore": [ ".bowerrc", ".idea", diff --git a/awx/ui/static/lib/less.js/.bower.json b/awx/ui/static/lib/less.js/.bower.json deleted file mode 100644 index 2f972e55fc..0000000000 --- a/awx/ui/static/lib/less.js/.bower.json +++ /dev/null @@ -1,29 +0,0 @@ -{ - "name": "less", - "version": "1.6.3", - "main": "./dist/less-1.6.3.js", - "ignore": [ - "**/.*", - "benchmark", - "bin", - "build", - "lib", - "test", - "*.md", - "LICENSE", - "Gruntfile.js", - "package.json", - "bower.json" - ], - "homepage": "https://github.com/less/less.js", - "_release": "1.6.3", - "_resolution": { - "type": "version", - "tag": "v1.6.3", - "commit": "0cfd753e3750ff1ee4c54e09d10ea1a633b0ce89" - }, - "_source": "git://github.com/less/less.js.git", - "_target": "~1.6.3", - "_originalSource": "less.js", - "_direct": true -} \ No newline at end of file diff --git a/awx/ui/static/lib/less.js/build.gradle b/awx/ui/static/lib/less.js/build.gradle deleted file mode 100644 index 7042b929a4..0000000000 --- a/awx/ui/static/lib/less.js/build.gradle +++ /dev/null @@ -1,347 +0,0 @@ -import groovy.io.FileType -import org.apache.tools.ant.taskdefs.condition.Os -import org.gradle.api.tasks.Exec - -buildscript { - repositories { - mavenCentral() - jcenter() - } - dependencies { - classpath 'com.eriwen:gradle-js-plugin:1.8.0' - classpath 'com.moowork.gradle:gradle-grunt-plugin:0.2' - } -} - -apply plugin: 'js' -apply plugin: 'grunt' - -repositories { - mavenCentral() -} - -configurations { - rhino -} - -dependencies { - rhino 'org.mozilla:rhino:1.7R4' -} - -project.ext { - packageProps = new groovy.json.JsonSlurper().parseText(new File("package.json").toURL().text) - failures = 0; - rhinoTestSrc = "out/rhino-test-${packageProps.version}.js" - testSrc = 'test/less' - testOut = 'out/test' -} - -task runGruntRhino(type: GruntTask) { - gruntArgs = "rhino" -} - -combineJs { - dependsOn runGruntRhino - source = ["dist/less-rhino-${packageProps.version}.js", "test/rhino/test-header.js","dist/lessc-rhino-${packageProps.version}.js"] - dest = file(rhinoTestSrc) -} - -task testRhino(type: AllRhinoTests) { -// dependsOn 'testRhinoBase' - dependsOn 'testRhinoBase', 'testRhinoErrors', 'testRhinoLegacy', 'testRhinoStaticUrls', 'testRhinoCompression', 'testRhinoDebugAll', 'testRhinoDebugComments', 'testRhinoDebugMediaquery', 'testRhinoNoJsError', 'testRhinoSourceMap' -} - -task testRhinoBase(type: RhinoTest) { - options = [ '--strict-math=true', '--relative-urls' ] -} - -task testRhinoDebugAll(type: DebugRhinoTest) { - options = [ '--strict-math=true', '--line-numbers=all' ] - testDir = 'debug' + fs - suffix = "-all" -} - -task testRhinoDebugComments(type: DebugRhinoTest) { - options = [ '--strict-math=true', '--line-numbers=comments' ] - testDir = 'debug' + fs - suffix = "-comments" -} - -task testRhinoDebugMediaquery(type: DebugRhinoTest) { - options = [ '--strict-math=true', '--line-numbers=mediaquery' ] - testDir = 'debug' + fs - suffix = "-mediaquery" -} - -task testRhinoErrors(type: RhinoTest) { - options = [ '--strict-math=true', '--strict-units=true' ] - testDir = 'errors/' - expectErrors = true -} - -task testRhinoChyby(type: RhinoTest) { - options = [ '--strict-math=true', '--strict-units=true' ] - testDir = 'chyby/' - // expectErrors = true -} - -task testRhinoNoJsError(type: RhinoTest) { - options = [ '--strict-math=true', '--strict-units=true', '--no-js' ] - testDir = 'no-js-errors/' - expectErrors = true -} - -task testRhinoLegacy(type: RhinoTest) { - testDir = 'legacy/' -} - -task testRhinoStaticUrls(type: RhinoTest) { - options = [ '--strict-math=true', '--rootpath=folder (1)/' ] - testDir = 'static-urls/' -} - -task testRhinoCompression(type: RhinoTest) { - options = [ '--compress=true' ] - testDir = 'compression/' -} - -task testRhinoSourceMap(type: SourceMapRhinoTest) { - options = [ '--strict-math=true', '--strict-units=true'] - testDir = 'sourcemaps/' -} - -task setupTest { - dependsOn combineJs - doLast { - file(testOut).deleteDir() - } -} - -task clean << { - file(rhinoTestSrc).delete() - file(testOut).deleteDir() -} - -class SourceMapRhinoTest extends RhinoTest { - - // helper to get the output map file - def getOutputMap(lessFile) { - def outFile = project.file(lessFile.path.replace('test/less', project.testOut).replace('.less', '.css')) - return project.file(outFile.path + ".map"); - } - - // callback to add SourceMap options to the options list - def postProcessOptions(options, lessFile) { - def outFile = getOutputMap(lessFile) - project.file(outFile.parent).mkdirs() - options << "--source-map=${testDir}${lessFile.name.replace('.less','.css')}" - options << "--source-map-basepath=${lessRootDir}" - options << "--source-map-rootpath=testweb/" - options << "--source-map-output-map-file=${outFile}" - - options - } - - // Callback to validate output - def handleResult(exec, out, lessFile) { - def actualFile = getOutputMap(lessFile) - def expectedFile = project.file(projectDir + fs + "test" + fs + testDir + fs + lessFile.name.replace(".less", ".json")) - assert actualFile.text == expectedFile.text - } - -} - -class DebugRhinoTest extends RhinoTest { - - def escapeIt(it) { - return it.replaceAll("\\\\", "\\\\\\\\").replaceAll("/", "\\\\/").replaceAll(":", "\\\\:").replaceAll("\\.", "\\\\."); - } - - def globalReplacements(input, directory) { - def pDirectory = toPlatformFs(directory) - def p = lessRootDir + fs + pDirectory - def pathimport = p + toPlatformFs("import/") - def pathesc = escapeIt(p) - def pathimportesc = escapeIt(pathimport) - - def result = input.replace("{path}", p).replace("{pathesc}", pathesc).replace("{pathimport}", pathimport) - return result.replace("{pathimportesc}", pathimportesc).replace("\r\n", "\n") - } -} - -class RhinoTest extends DefaultTask { - - RhinoTest() { - dependsOn 'setupTest' - } - - def suffix = "" - def testDir = '' - def options = [] - def expectErrors = false - def fs = File.separator; - def projectDir = toUpperCaseDriveLetter(System.getProperty("user.dir")); - def lessRootDir = projectDir + fs + "test" + fs + "less" - - def toUpperCaseDriveLetter(path) { - if (path.charAt(1)==':' && path.charAt(2)=='\\') { - return path.substring(0,1).toUpperCase() + path.substring(1); - } - return path; - } - - def toPlatformFs(path) { - return path.replace('\\', fs).replace('/', fs); - } - - def expectedCssPath(lessFilePath) { - lessFilePath.replace('.less', "${suffix}.css").replace("${fs}less${fs}", "${fs}css${fs}"); - } - - def globalReplacements(input, directory) { - return input; - } - - def stylize(str, style) { - def styles = [ - reset : [0, 0], - bold : [1, 22], - inverse : [7, 27], - underline : [4, 24], - yellow : [33, 39], - green : [32, 39], - red : [31, 39], - grey : [90, 39] - ]; - return '\033[' + styles[style][0] + 'm' + str + - '\033[' + styles[style][1] + 'm'; - } - - // Callback for subclasses to make any changes to the options - def postProcessOptions(options, lessFile) { - options - } - - // Callback to validate output - def handleResult(exec, out, lessFile) { - def actual = out.toString().trim() - def actualResult = project.file(lessFile.path.replace('test/less', project.testOut).replace('.less', '.css')) - project.file(actualResult.parent).mkdirs() - actualResult << actual - def expected - if (expectErrors) { - assert exec.exitValue != 0 - expected = project.file(lessFile.path.replace('.less', '.txt')).text.trim(). - replace('{path}', lessFile.parent + '/'). - replace('{pathhref}', ''). - replace('{404status}', '') - } else { - assert exec.exitValue == 0 - def expectedFile = expectedCssPath(lessFile.path) - expected = project.file(expectedFile).text.trim() - expected = globalReplacements(expected, testDir) - } - actual=actual.trim() - actual = actual.replace('\r\n', '\n') - expected = expected.replace('\r\n', '\n') - actual = actual.replace("/","\\") - expected = expected.replace("/","\\") -// println "* actual *" -// println actual -// new File("actual.txt").write(actual) -// println "* expected *" -// println expected -// new File("expected.txt").write(expected) - assert actual == expected - actualResult.delete() - - } - - @TaskAction - def runTest() { - int testSuccesses = 0, testFailures = 0, testErrors = 0 - project.file('test/less/' + testDir).eachFileMatch(FileType.FILES, ~/.*\.less/) { lessFile -> - println "lessfile: $lessFile" - if (!project.hasProperty('test') || lessFile.name.startsWith(project.test)) { - def out = new java.io.ByteArrayOutputStream() - def processedOptions = postProcessOptions([project.rhinoTestSrc, lessFile] + options, lessFile) - def execOptions = { - main = 'org.mozilla.javascript.tools.shell.Main' -// main = 'org.mozilla.javascript.tools.debugger.Main' - classpath = project.configurations.rhino - args = processedOptions - standardOutput = out - ignoreExitValue = true - } - println "rhinoTestSrc: ${project.rhinoTestSrc}" - try { - def exec = project.javaexec(execOptions) - handleResult(exec, out, lessFile) - testSuccesses++ - println stylize(' ok', 'green') - } - catch (ex) { - println ex - println() - testErrors++; - } - catch (AssertionError ae) { - println stylize(' failed', 'red') - println ae - testFailures++ - } - } else { - println stylize(' skipped', 'yellow') - } - } - println stylize(testSuccesses + ' ok', 'green') - println stylize(testFailures + ' assertion failed', testFailures == 0 ? 'green' : 'red') - println stylize(testErrors + ' errors', testErrors == 0 ? 'green' : 'red') - if (testFailures != 0 || testErrors != 0) { - project.failures++; - } - } -} - -class AllRhinoTests extends DefaultTask { - - AllRhinoTests() { - } - - @TaskAction - def runTest() { - println stylize(project.failures + ' test suites failed', project.failures == 0 ? 'green' : 'red') - } - - def stylize(str, style) { - def styles = [ - reset : [0, 0], - bold : [1, 22], - inverse : [7, 27], - underline : [4, 24], - yellow : [33, 39], - green : [32, 39], - red : [31, 39], - grey : [90, 39] - ]; - return '\033[' + styles[style][0] + 'm' + str + - '\033[' + styles[style][1] + 'm'; - } -} - -class GruntTask extends Exec { - private String gruntExecutable = Os.isFamily(Os.FAMILY_WINDOWS) ? "grunt.cmd" : "grunt" - private String switches = "--no-color" - - String gruntArgs = "" - - public GruntTask() { - super() - this.setExecutable(gruntExecutable) - } - - public void setGruntArgs(String gruntArgs) { - this.args = "$switches $gruntArgs".trim().split(" ") as List - } -} - diff --git a/awx/ui/static/lib/less.js/dist/less-1.1.0.js b/awx/ui/static/lib/less.js/dist/less-1.1.0.js deleted file mode 100644 index 487c06acd2..0000000000 --- a/awx/ui/static/lib/less.js/dist/less-1.1.0.js +++ /dev/null @@ -1,2695 +0,0 @@ -// -// LESS - Leaner CSS v1.1.0 -// http://lesscss.org -// -// Copyright (c) 2009-2011, Alexis Sellier -// Licensed under the Apache 2.0 License. -// -(function (window, undefined) { -// -// Stub out `require` in the browser -// -function require(arg) { - return window.less[arg.split('/')[1]]; -}; - - -// ecma-5.js -// -// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License -// -- tlrobinson Tom Robinson -// dantman Daniel Friesen - -// -// Array -// -if (!Array.isArray) { - Array.isArray = function(obj) { - return Object.prototype.toString.call(obj) === "[object Array]" || - (obj instanceof Array); - }; -} -if (!Array.prototype.forEach) { - Array.prototype.forEach = function(block, thisObject) { - var len = this.length >>> 0; - for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree; - -if (typeof(window) === 'undefined') { - less = exports, - tree = require('less/tree'); -} else { - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - mime: env && env.mime, // MIME type of .less files - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (root) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - that.files[path] = root; // Store the root - - callback(root); - - if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, c, index, endIndex, k, mem; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - mem = i += length; - endIndex = i + chunks[j].length - length; - - while (i < endIndex) { - c = input.charCodeAt(i); - if (! (c === 32 || c === 10 || c === 9)) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - chunks = []; - input = str.replace(/\r\n/g, '\n'); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /[^"'`\{\}\/\(\)]+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - level = 0, - match, - chunk = chunks[0], - inParam, - inString; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = i; - - if (!inString && !inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - if (c === '{' && !inString && !inParam) { level ++; - chunk.push(c); - } else if (c === '}' && !inString && !inParam) { level --; - chunk.push(c); - chunks[++j] = chunk = []; - } else if (c === '(' && !inString && !inParam) { - chunk.push(c); - inParam = true; - } else if (c === ')' && !inString && inParam) { - chunk.push(c); - inParam = false; - } else { - if (c === '"' || c === "'" || c === '`') { - if (! inString) { - inString = c; - } else { - inString = inString === c ? false : inString; - } - } - chunk.push(c); - } - } - if (level > 0) { - throw { - type: 'Syntax', - message: "Missing closing `}`", - filename: env.filename - }; - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = []; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false }); - } catch (e) { - lines = input.split('\n'); - line = getLine(e.index); - - for (var n = e.index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - throw { - type: e.type, - message: e.message, - filename: env.filename, - index: e.index, - line: typeof(line) === 'number' ? line + 1 : null, - callLine: e.call && (getLine(e.call) + 1), - callExtract: lines[getLine(e.call)], - stack: e.stack, - column: column, - extract: [ - lines[line - 1], - lines[line], - lines[line + 1] - ] - }; - } - if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - - function getLine(index) { - return index ? (input.slice(0, index).match(/\n/g) || "").length : null; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - name: "ParseError", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function () { callback(error, root) }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - if (k = $(/^[A-Za-z-]+/)) { return new(tree.Keyword)(k) } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, args; - - if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return; - - name = name[1].toLowerCase(); - - if (name === 'url') { return null } - else { i += name.length } - - if (name === 'alpha') { return $(this.alpha) } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; - if (! $(')')) throw new(Error)("missing closing ) for url()"); - - return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - dataURI: function () { - var obj; - - if ($(/^data:/)) { - obj = {}; - obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; - obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; - obj.base64 = $(/^;\s*base64/) || ''; - obj.data = $(/^,\s*[^)]+/); - - if (obj.data) { return obj } - } - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i); - - if (s !== '.' && s !== '#') { return } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(c, e)); - c = $('>'); - } - $('(') && (args = $(this.entities.arguments)) && $(')'); - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index); - } - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value; - - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { - name = match[1]; - - while (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - if (value = $(this.expression)) { - params.push({ name: param.name, value: value }); - } else { - throw new(Error)("Expected value"); - } - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - if (! $(',')) { break } - } - if (! $(')')) throw new(Error)("Expected )"); - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - if (! $(')')) throw new(Error)("missing closing ) for alpha()"); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c; - - c = $(this.combinator); - e = $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || $('*') || $(this.attribute) || $(/^\([^)@]+\)/); - - if (e) { return new(tree.Element)(c, e) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '&' || c === '+' || c === '~') { - i++; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(c); - } else if (c === ':' && input.charAt(i + 1) === ':') { - i += 2; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)('::'); - } else if (input.charAt(i - 1) === ' ') { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match; - save(); - - if (match = /^([.#: \w-]+)[\s\n]*\{/.exec(chunks[j])) { - i += match[0].length - 1; - selectors = [new(tree.Selector)([new(tree.Element)(null, match[1])])]; - } else { - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - } - - if (selectors.length > 0 && (rules = $(this.block))) { - return new(tree.Ruleset)(selectors, rules); - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path; - if ($(/^@import\s+/) && - (path = $(this.entities.quoted) || $(this.entities.url)) && - $(';')) { - return new(tree.Import)(path, imports); - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, types; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import'])) { - return value; - } else if (name = $(/^@media|@page|@-[-a-z]+/)) { - types = ($(/^[^{]+/) || '').trim(); - if (rules = $(this.block)) { - return new(tree.Directive)(name + " " + types, rules); - } - } else if (name = $(/^@[-a-z]+/)) { - if (name === '@font-face') { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while ((op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (typeof(window) !== 'undefined') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (path.charAt(0) !== '/' && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math.round(number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math.round(n); - } else { - throw { - error: "RuntimeError", - message: "math functions take numbers as parameters" - }; - } - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('less/tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args) { - this.name = name; - this.args = args; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - return tree.functions[this.name].apply(tree.functions, args); - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('less/tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else if (rgb.length == 8) { - this.alpha = parseInt(rgb.substring(0,2), 16) / 255.0; - this.rgb = rgb.substr(2).match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - } -}; - - -})(require('less/tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - env.frames.unshift(this); - this.ruleset = this.ruleset && this.ruleset.eval(env); - env.frames.shift(); - return this; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Element = function (combinator, value) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - this.value = value.trim(); -}; -tree.Element.prototype.toCSS = function (env) { - return this.combinator.toCSS(env || {}) + this.value; -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - '&' : '', - ':' : ' :', - '::': '::', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('less/tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else { - return this.value[0].eval(env); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(' '); - } -}; - -})(require('less/tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports) { - var that = this; - - this._path = path; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (root) { - if (! root) { - throw new(Error)("Error parsing " + that.path); - } - that.root = root; - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function () { - if (this.css) { - return "@import " + this._path.toCSS() + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return ruleset.rules; - } - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - toCSS: function () { - if (this.escaped) { - return this.evaluated; - } else { - return JSON.stringify(this.evaluated); - } - }, - eval: function (env) { - var result, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return new(tree.Variable)('@' + name).eval(env).value; - }); - - expression = new(Function)('return (' + expression + ')'); - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - this.evaluated = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - return this; - } -}; - -})(require('less/tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value } -}; - -})(require('less/tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(this.arguments, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments).rules); - match = true; - } catch (e) { - throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; - } - } - } - if (match) { - return rules; - } else { - throw { message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index }; - } - } - } - throw { message: this.selector.toCSS().trim() + " is undefined", - index: this.index }; - } -}; - -tree.mixin.Definition = function (name, params, rules) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - eval: function (env, args) { - var frame = new(tree.Ruleset)(null, []), context, _arguments = []; - - for (var i = 0, val; i < this.params.length; i++) { - if (this.params[i].name) { - if (val = (args && args[i]) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); - } else { - throw { message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push(args[i] || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments))); - - return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (argsLength < this.required) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - this.value = this.value.replace(/@\{([\w-]+)\}/g, function (_, name) { - return new(tree.Variable)('@' + name).eval(env).value; - }).replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, this.index, true).eval(env).toCSS(); - }); - return this; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + ";"; - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); - - ruleset.root = this.root; - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > 1) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - rule; - - if (! this.root) { - if (context.length === 0) { - paths = this.selectors.map(function (s) { return [s] }); - } else { - for (var s = 0; s < this.selectors.length; s++) { - for (var c = 0; c < context.length; c++) { - paths.push(context[c].concat([this.selectors[s]])); - } - } - } - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); - css.push(selector, - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - } -}; -})(require('less/tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; - if (this.elements[0].combinator.value === "") { - this.elements[0].combinator.value = ' '; - } -}; -tree.Selector.prototype.match = function (other) { - if (this.elements[0].value === other.elements[0].value) { - return true; - } else { - return false; - } -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - return this._css = this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); -}; - -})(require('less/tree')); -(function (tree) { - -tree.URL = function (val, paths) { - if (val.data) { - this.attrs = val; - } else { - // Add the base path if the URL is relative and we are in the browser - if (!/^(?:https?:\/|file:\/|data:\/)?\//.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') { - val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - this.value = val; - this.paths = paths; - } -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data - : this.value.toCSS()) + ")"; - }, - eval: function (ctx) { - return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Variable = function (name, index) { this.name = name, this.index = index }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { message: "variable " + name + " is undefined", - index: this.index }; - } - } -}; - -})(require('less/tree')); -require('less/tree').find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -// -// browser.js - client-side engine -// - -var isFileProtocol = (location.protocol === 'file:' || - location.protocol === 'chrome:' || - location.protocol === 'chrome-extension:' || - location.protocol === 'resource:'); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 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sheet.href.replace(/\?.*$/, '') : ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If the stylesheet doesn't exist, create a new node - if ((css = document.getElementById(id)) === null) { - css = document.createElement('style'); - css.type = 'text/css'; - css.media = sheet.media || 'screen'; - css.id = id; - document.getElementsByTagName('head')[0].appendChild(css); - } - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - (function (node) { - if (css.childNodes.length > 0) { - if (css.firstChild.nodeValue !== node.nodeValue) { - css.replaceChild(node, css.firstChild); - } - } else { - css.appendChild(node); - } - })(document.createTextNode(styles)); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? 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This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - mime: env && env.mime, // MIME type of .less files - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (root) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - that.files[path] = root; // Store the root - - callback(root); - - if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, c, index, endIndex, k, mem; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - mem = i += length; - endIndex = i + chunks[j].length - length; - - while (i < endIndex) { - c = input.charCodeAt(i); - if (! (c === 32 || c === 10 || c === 9)) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - chunks = []; - input = str.replace(/\r\n/g, '\n'); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /[^"'`\{\}\/\(\)]+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - level = 0, - match, - chunk = chunks[0], - inParam, - inString; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = i; - - if (!inString && !inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - if (c === '{' && !inString && !inParam) { level ++; - chunk.push(c); - } else if (c === '}' && !inString && !inParam) { level --; - chunk.push(c); - chunks[++j] = chunk = []; - } else if (c === '(' && !inString && !inParam) { - chunk.push(c); - inParam = true; - } else if (c === ')' && !inString && inParam) { - chunk.push(c); - inParam = false; - } else { - if (c === '"' || c === "'" || c === '`') { - if (! inString) { - inString = c; - } else { - inString = inString === c ? false : inString; - } - } - chunk.push(c); - } - } - if (level > 0) { - throw { - type: 'Syntax', - message: "Missing closing `}`", - filename: env.filename - }; - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = []; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false }); - } catch (e) { - lines = input.split('\n'); - line = getLine(e.index); - - for (var n = e.index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - throw { - type: e.type, - message: e.message, - filename: env.filename, - index: e.index, - line: typeof(line) === 'number' ? line + 1 : null, - callLine: e.call && (getLine(e.call) + 1), - callExtract: lines[getLine(e.call)], - stack: e.stack, - column: column, - extract: [ - lines[line - 1], - lines[line], - lines[line + 1] - ] - }; - } - if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - - function getLine(index) { - return index ? (input.slice(0, index).match(/\n/g) || "").length : null; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - name: "ParseError", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function () { callback(error, root) }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - if (k = $(/^[A-Za-z-]+/)) { return new(tree.Keyword)(k) } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, args; - - if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return; - - name = name[1].toLowerCase(); - - if (name === 'url') { return null } - else { i += name.length } - - if (name === 'alpha') { return $(this.alpha) } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; - if (! $(')')) throw new(Error)("missing closing ) for url()"); - - return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - dataURI: function () { - var obj; - - if ($(/^data:/)) { - obj = {}; - obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; - obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; - obj.base64 = $(/^;\s*base64/) || ''; - obj.data = $(/^,\s*[^)]+/); - - if (obj.data) { return obj } - } - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i); - - if (s !== '.' && s !== '#') { return } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(c, e)); - c = $('>'); - } - $('(') && (args = $(this.entities.arguments)) && $(')'); - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index); - } - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value; - - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { - name = match[1]; - - while (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - if (value = $(this.expression)) { - params.push({ name: param.name, value: value }); - } else { - throw new(Error)("Expected value"); - } - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - if (! $(',')) { break } - } - if (! $(')')) throw new(Error)("Expected )"); - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - if (! $(')')) throw new(Error)("missing closing ) for alpha()"); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c; - - c = $(this.combinator); - e = $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || $('*') || $(this.attribute) || $(/^\([^)@]+\)/); - - if (e) { return new(tree.Element)(c, e) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '&' || c === '+' || c === '~') { - i++; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(c); - } else if (c === ':' && input.charAt(i + 1) === ':') { - i += 2; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)('::'); - } else if (input.charAt(i - 1) === ' ') { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match; - save(); - - if (match = /^([.#: \w-]+)[\s\n]*\{/.exec(chunks[j])) { - i += match[0].length - 1; - selectors = [new(tree.Selector)([new(tree.Element)(null, match[1])])]; - } else { - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - } - - if (selectors.length > 0 && (rules = $(this.block))) { - return new(tree.Ruleset)(selectors, rules); - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path; - if ($(/^@import\s+/) && - (path = $(this.entities.quoted) || $(this.entities.url)) && - $(';')) { - return new(tree.Import)(path, imports); - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, types; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import'])) { - return value; - } else if (name = $(/^@media|@page|@-[-a-z]+/)) { - types = ($(/^[^{]+/) || '').trim(); - if (rules = $(this.block)) { - return new(tree.Directive)(name + " " + types, rules); - } - } else if (name = $(/^@[-a-z]+/)) { - if (name === '@font-face') { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while ((op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (typeof(window) !== 'undefined') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (path.charAt(0) !== '/' && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math.round(number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math.round(n); - } else { - throw { - error: "RuntimeError", - message: "math functions take numbers as parameters" - }; - } - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('less/tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args) { - this.name = name; - this.args = args; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - return tree.functions[this.name].apply(tree.functions, args); - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('less/tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else if (rgb.length == 8) { - this.alpha = parseInt(rgb.substring(0,2), 16) / 255.0; - this.rgb = rgb.substr(2).match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - } -}; - - -})(require('less/tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - env.frames.unshift(this); - this.ruleset = this.ruleset && this.ruleset.eval(env); - env.frames.shift(); - return this; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Element = function (combinator, value) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - this.value = value.trim(); -}; -tree.Element.prototype.toCSS = function (env) { - return this.combinator.toCSS(env || {}) + this.value; -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - '&' : '', - ':' : ' :', - '::': '::', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('less/tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(' '); - } -}; - -})(require('less/tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports) { - var that = this; - - this._path = path; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (root) { - if (! root) { - throw new(Error)("Error parsing " + that.path); - } - that.root = root; - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function () { - if (this.css) { - return "@import " + this._path.toCSS() + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return ruleset.rules; - } - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('less/tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value } -}; - -})(require('less/tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(this.arguments, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments).rules); - match = true; - } catch (e) { - throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; - } - } - } - if (match) { - return rules; - } else { - throw { message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index }; - } - } - } - throw { message: this.selector.toCSS().trim() + " is undefined", - index: this.index }; - } -}; - -tree.mixin.Definition = function (name, params, rules) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - eval: function (env, args) { - var frame = new(tree.Ruleset)(null, []), context, _arguments = []; - - for (var i = 0, val; i < this.params.length; i++) { - if (this.params[i].name) { - if (val = (args && args[i]) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); - } else { - throw { message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push(args[i] || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (argsLength < this.required) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - this.value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - return new(tree.Variable)('@' + name, that.index).eval(env).value; - }); - return this; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + ";"; - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); - - ruleset.root = this.root; - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > 1) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - rule; - - if (! this.root) { - if (context.length === 0) { - paths = this.selectors.map(function (s) { return [s] }); - } else { - for (var s = 0; s < this.selectors.length; s++) { - for (var c = 0; c < context.length; c++) { - paths.push(context[c].concat([this.selectors[s]])); - } - } - } - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); - css.push(selector, - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - } -}; -})(require('less/tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; - if (this.elements[0].combinator.value === "") { - this.elements[0].combinator.value = ' '; - } -}; -tree.Selector.prototype.match = function (other) { - if (this.elements[0].value === other.elements[0].value) { - return true; - } else { - return false; - } -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - return this._css = this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); -}; - -})(require('less/tree')); -(function (tree) { - -tree.URL = function (val, paths) { - if (val.data) { - this.attrs = val; - } else { - // Add the base path if the URL is relative and we are in the browser - if (!/^(?:https?:\/|file:\/|data:\/)?\//.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') { - val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - this.value = val; - this.paths = paths; - } -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data - : this.value.toCSS()) + ")"; - }, - eval: function (ctx) { - return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Variable = function (name, index) { this.name = name, this.index = index }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { message: "variable " + name + " is undefined", - index: this.index }; - } - } -}; - -})(require('less/tree')); -require('less/tree').find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -require('less/tree').jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; -// -// browser.js - client-side engine -// - -var isFileProtocol = (location.protocol === 'file:' || - location.protocol === 'chrome:' || - location.protocol === 'chrome-extension:' || - location.protocol === 'resource:'); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -// -// Watch mode -// -less.watch = function () { return this.watchMode = true }; -less.unwatch = function () { return this.watchMode = false }; - -if (less.env === 'development') { - less.optimization = 0; - - if (/!watch/.test(location.hash)) { - less.watch(); - } - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (root, sheet, env) { - if (root) { - createCSS(root.toCSS(), sheet, env.lastModified); - } - }); - } - }, less.poll); -} else { - less.optimization = 3; -} - -var cache; - -try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; -} catch (_) { - cache = null; -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (root, sheet, env) { - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) { - styles[i].type = 'text/css'; - styles[i].innerHTML = tree.toCSS(); - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - var url = window.location.href.replace(/[#?].*$/, ''); - var href = sheet.href.replace(/\?.*$/, ''); - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - - // Stylesheets in IE don't always return the full path - if (! /^(https?|file):/.test(href)) { - if (href.charAt(0) == "/") { - href = window.location.protocol + "//" + window.location.host + href; - } else { - href = url.slice(0, url.lastIndexOf('/') + 1) + href; - } - } - - xhr(sheet.href, sheet.type, function (data, lastModified) { - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, sheet, { local: true, remaining: remaining }); - } else { - // Use remote copy (re-parse) - try { - new(less.Parser)({ - optimization: less.optimization, - paths: [href.replace(/[\w\.-]+$/, '')], - mime: sheet.type - }).parse(data, function (e, root) { - if (e) { return error(e, href) } - try { - callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining }); - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } catch (e) { - error(e, href); - } - }); - } catch (e) { - error(e, href); - } - } - }, function (status, url) { - throw new(Error)("Couldn't load " + url + " (" + status + ")"); - }); -} - -function extractId(href) { - return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\?.*$/, '' ) // Remove query - .replace(/\.[^\.\/]+$/, '' ) // Remove file extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - var css; - - // Strip the query-string - var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If the stylesheet doesn't exist, create a new node - if ((css = document.getElementById(id)) === null) { - css = document.createElement('style'); - css.type = 'text/css'; - css.media = sheet.media || 'screen'; - css.id = id; - document.getElementsByTagName('head')[0].appendChild(css); - } - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - (function (node) { - if (css.childNodes.length > 0) { - if (css.firstChild.nodeValue !== node.nodeValue) { - css.replaceChild(node, css.firstChild); - } - } else { - css.appendChild(node); - } - })(document.createTextNode(styles)); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? false : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - if (isFileProtocol) { - if (xhr.status === 0) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new(XMLHttpRequest); - } else { - try { - return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX."); - return null; - } - } -} - -function removeNode(node) { - return node && node.parentNode.removeChild(node); -} - -function log(str) { - if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } -} - -function error(e, href) { - var id = 'less-error-message:' + extractId(href); - - var template = ['
    ', - '
  • {0}
    • ', - '
  • {current}
    • ', - '
  • {2}
    • ', - '
'].join('\n'); - - var elem = document.createElement('div'), timer, content; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

' + (e.message || 'There is an error in your .less file') + - '

' + '

' + href + " "; - - if (e.extract) { - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

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a.Dimension(b.toHSL().a)},saturate:function(a,c){var e=a.toHSL();e.s+=c.value/100,e.s=d(e.s);return b(e)},desaturate:function(a,c){var e=a.toHSL();e.s-=c.value/100,e.s=d(e.s);return b(e)},lighten:function(a,c){var e=a.toHSL();e.l+=c.value/100,e.l=d(e.l);return b(e)},darken:function(a,c){var e=a.toHSL();e.l-=c.value/100,e.l=d(e.l);return b(e)},fadein:function(a,c){var e=a.toHSL();e.a+=c.value/100,e.a=d(e.a);return b(e)},fadeout:function(a,c){var e=a.toHSL();e.a-=c.value/100,e.a=d(e.a);return b(e)},spin:function(a,c){var d=a.toHSL(),e=(d.h+c.value)%360;d.h=e<0?360+e:e;return b(d)},mix:function(b,c,d){var e=d.value/100,f=e*2-1,g=b.toHSL().a-c.toHSL().a,h=((f*g==-1?f:(f+g)/(1+f*g))+1)/2,i=1-h,j=[b.rgb[0]*h+c.rgb[0]*i,b.rgb[1]*h+c.rgb[1]*i,b.rgb[2]*h+c.rgb[2]*i],k=b.alpha*e+c.alpha*(1-e);return new a.Color(j,k)},greyscale:function(b){return this.desaturate(b,new a.Dimension(100))},e:function(b){return new a.Anonymous(b instanceof a.JavaScript?b.evaluated:b)},escape:function(b){return new a.Anonymous(encodeURI(b.value).replace(/=/g,"%3D").replace(/:/g,"%3A").replace(/#/g,"%23").replace(/;/g,"%3B").replace(/\(/g,"%28").replace(/\)/g,"%29"))},"%":function(b){var c=Array.prototype.slice.call(arguments,1),d=b.value;for(var e=0;e255?255:a<0?0:a).toString(16);return a.length===1?"0"+a:a}).join("")},operate:function(b,c){var d=[];c instanceof a.Color||(c=c.toColor());for(var e=0;e<3;e++)d[e]=a.operate(b,this.rgb[e],c.rgb[e]);return new a.Color(d,this.alpha+c.alpha)},toHSL:function(){var a=this.rgb[0]/255,b=this.rgb[1]/255,c=this.rgb[2]/255,d=this.alpha,e=Math.max(a,b,c),f=Math.min(a,b,c),g,h,i=(e+f)/2,j=e-f;if(e===f)g=h=0;else{h=i>.5?j/(2-e-f):j/(e+f);switch(e){case a:g=(b-c)/j+(b":a.compress?">":" > "}[this.value]}}(c("less/tree")),function(a){a.Expression=function(a){this.value=a},a.Expression.prototype={eval:function(b){return this.value.length>1?new a.Expression(this.value.map(function(a){return 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"+b.trim():b.toCSS(a)}).join("")}}(c("less/tree")),function(b){b.URL=function(b,c){b.data?this.attrs=b:(!/^(?:https?:\/|file:\/|data:\/)?\//.test(b.value)&&c.length>0&&typeof a!="undefined"&&(b.value=c[0]+(b.value.charAt(0)==="/"?b.value.slice(1):b.value)),this.value=b,this.paths=c)},b.URL.prototype={toCSS:function(){return"url("+(this.attrs?"data:"+this.attrs.mime+this.attrs.charset+this.attrs.base64+this.attrs.data:this.value.toCSS())+")"},eval:function(a){return this.attrs?this:new b.URL(this.value.eval(a),this.paths)}}}(c("less/tree")),function(a){a.Value=function(a){this.value=a,this.is="value"},a.Value.prototype={eval:function(b){return this.value.length===1?this.value[0].eval(b):new a.Value(this.value.map(function(a){return a.eval(b)}))},toCSS:function(a){return this.value.map(function(b){return b.toCSS(a)}).join(a.compress?",":", ")}}}(c("less/tree")),function(a){a.Variable=function(a,b){this.name=a,this.index=b},a.Variable.prototype={eval:function(b){var c,d,e=this.name;e.indexOf("@@")==0&&(e="@"+(new a.Variable(e.slice(1))).eval(b).value);if(c=a.find(b.frames,function(a){if(d=a.variable(e))return d.value.eval(b)}))return c;throw{message:"variable "+e+" is undefined",index:this.index}}}}(c("less/tree" -)),c("less/tree").find=function(a,b){for(var c=0,d;c1?"["+a.value.map(function(a){return a.toCSS(!1)}).join(", ")+"]":a.toCSS(!1)};var g=location.protocol==="file:"||location.protocol==="chrome:"||location.protocol==="chrome-extension:"||location.protocol==="resource:";d.env=d.env||(location.hostname=="127.0.0.1"||location.hostname=="0.0.0.0"||location.hostname=="localhost"||location.port.length>0||g?"development":"production"),d.async=!1,d.poll=d.poll||(g?1e3:1500),d.watch=function(){return this.watchMode=!0},d.unwatch=function(){return this.watchMode=!1},d.env==="development"?(d.optimization=0,/!watch/.test(location.hash)&&d.watch(),d.watchTimer=setInterval(function(){d.watchMode&&n(function(a,b,c){a&&q(a.toCSS(),b,c.lastModified)})},d.poll)):d.optimization=3;var h;try{h=typeof a.localStorage=="undefined"?null:a.localStorage}catch(i){h=null}var j=document.getElementsByTagName("link"),k=/^text\/(x-)?less$/;d.sheets=[];for(var l=0;l>> 0; - for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree; - -if (typeof(window) === 'undefined') { - less = exports, - tree = require('less/tree'); -} else { - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - mime: env && env.mime, // MIME type of .less files - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (root) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - that.files[path] = root; // Store the root - - callback(root); - - if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, c, index, endIndex, k, mem; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - mem = i += length; - endIndex = i + chunks[j].length - length; - - while (i < endIndex) { - c = input.charCodeAt(i); - if (! (c === 32 || c === 10 || c === 9)) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - chunks = []; - input = str.replace(/\r\n/g, '\n'); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /[^"'`\{\}\/\(\)]+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - level = 0, - match, - chunk = chunks[0], - inParam, - inString; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = i; - - if (!inString && !inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - if (c === '{' && !inString && !inParam) { level ++; - chunk.push(c); - } else if (c === '}' && !inString && !inParam) { level --; - chunk.push(c); - chunks[++j] = chunk = []; - } else if (c === '(' && !inString && !inParam) { - chunk.push(c); - inParam = true; - } else if (c === ')' && !inString && inParam) { - chunk.push(c); - inParam = false; - } else { - if (c === '"' || c === "'" || c === '`') { - if (! inString) { - inString = c; - } else { - inString = inString === c ? false : inString; - } - } - chunk.push(c); - } - } - if (level > 0) { - throw { - type: 'Syntax', - message: "Missing closing `}`", - filename: env.filename - }; - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = []; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false }); - } catch (e) { - lines = input.split('\n'); - line = getLine(e.index); - - for (var n = e.index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - throw { - type: e.type, - message: e.message, - filename: env.filename, - index: e.index, - line: typeof(line) === 'number' ? line + 1 : null, - callLine: e.call && (getLine(e.call) + 1), - callExtract: lines[getLine(e.call)], - stack: e.stack, - column: column, - extract: [ - lines[line - 1], - lines[line], - lines[line + 1] - ] - }; - } - if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - - function getLine(index) { - return index ? (input.slice(0, index).match(/\n/g) || "").length : null; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - name: "ParseError", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function () { callback(error, root) }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - if (k = $(/^[A-Za-z-]+/)) { return new(tree.Keyword)(k) } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, args; - - if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return; - - name = name[1].toLowerCase(); - - if (name === 'url') { return null } - else { i += name.length } - - if (name === 'alpha') { return $(this.alpha) } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; - if (! $(')')) throw new(Error)("missing closing ) for url()"); - - return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - dataURI: function () { - var obj; - - if ($(/^data:/)) { - obj = {}; - obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; - obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; - obj.base64 = $(/^;\s*base64/) || ''; - obj.data = $(/^,\s*[^)]+/); - - if (obj.data) { return obj } - } - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i); - - if (s !== '.' && s !== '#') { return } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(c, e)); - c = $('>'); - } - $('(') && (args = $(this.entities.arguments)) && $(')'); - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index); - } - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value; - - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { - name = match[1]; - - while (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - if (value = $(this.expression)) { - params.push({ name: param.name, value: value }); - } else { - throw new(Error)("Expected value"); - } - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - if (! $(',')) { break } - } - if (! $(')')) throw new(Error)("Expected )"); - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - if (! $(')')) throw new(Error)("missing closing ) for alpha()"); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c; - - c = $(this.combinator); - e = $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || $('*') || $(this.attribute) || $(/^\([^)@]+\)/); - - if (e) { return new(tree.Element)(c, e) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '&' || c === '+' || c === '~') { - i++; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(c); - } else if (c === ':' && input.charAt(i + 1) === ':') { - i += 2; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)('::'); - } else if (input.charAt(i - 1) === ' ') { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match; - save(); - - if (match = /^([.#: \w-]+)[\s\n]*\{/.exec(chunks[j])) { - i += match[0].length - 1; - selectors = [new(tree.Selector)([new(tree.Element)(null, match[1])])]; - } else { - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - } - - if (selectors.length > 0 && (rules = $(this.block))) { - return new(tree.Ruleset)(selectors, rules); - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path; - if ($(/^@import\s+/) && - (path = $(this.entities.quoted) || $(this.entities.url)) && - $(';')) { - return new(tree.Import)(path, imports); - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, types; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import'])) { - return value; - } else if (name = $(/^@media|@page|@-[-a-z]+/)) { - types = ($(/^[^{]+/) || '').trim(); - if (rules = $(this.block)) { - return new(tree.Directive)(name + " " + types, rules); - } - } else if (name = $(/^@[-a-z]+/)) { - if (name === '@font-face') { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while ((op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (typeof(window) !== 'undefined') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (path.charAt(0) !== '/' && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math.round(number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math.round(n); - } else { - throw { - error: "RuntimeError", - message: "math functions take numbers as parameters" - }; - } - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('less/tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args) { - this.name = name; - this.args = args; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - return tree.functions[this.name].apply(tree.functions, args); - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('less/tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else if (rgb.length == 8) { - this.alpha = parseInt(rgb.substring(0,2), 16) / 255.0; - this.rgb = rgb.substr(2).match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - } -}; - - -})(require('less/tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - env.frames.unshift(this); - this.ruleset = this.ruleset && this.ruleset.eval(env); - env.frames.shift(); - return this; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Element = function (combinator, value) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - this.value = value.trim(); -}; -tree.Element.prototype.toCSS = function (env) { - return this.combinator.toCSS(env || {}) + this.value; -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - '&' : '', - ':' : ' :', - '::': '::', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('less/tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(' '); - } -}; - -})(require('less/tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports) { - var that = this; - - this._path = path; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (root) { - if (! root) { - throw new(Error)("Error parsing " + that.path); - } - that.root = root; - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function () { - if (this.css) { - return "@import " + this._path.toCSS() + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return ruleset.rules; - } - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('less/tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value } -}; - -})(require('less/tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, args, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(args, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments).rules); - match = true; - } catch (e) { - throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; - } - } - } - if (match) { - return rules; - } else { - throw { message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index }; - } - } - } - throw { message: this.selector.toCSS().trim() + " is undefined", - index: this.index }; - } -}; - -tree.mixin.Definition = function (name, params, rules) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - eval: function (env, args) { - var frame = new(tree.Ruleset)(null, []), context, _arguments = []; - - for (var i = 0, val; i < this.params.length; i++) { - if (this.params[i].name) { - if (val = (args && args[i]) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); - } else { - throw { message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push(args[i] || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (argsLength < this.required) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return v.value || v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + ";"; - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); - - ruleset.root = this.root; - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > 1) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - rule; - - if (! this.root) { - if (context.length === 0) { - paths = this.selectors.map(function (s) { return [s] }); - } else { - for (var s = 0; s < this.selectors.length; s++) { - for (var c = 0; c < context.length; c++) { - paths.push(context[c].concat([this.selectors[s]])); - } - } - } - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); - css.push(selector, - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - } -}; -})(require('less/tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; - if (this.elements[0].combinator.value === "") { - this.elements[0].combinator.value = ' '; - } -}; -tree.Selector.prototype.match = function (other) { - if (this.elements[0].value === other.elements[0].value) { - return true; - } else { - return false; - } -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - return this._css = this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); -}; - -})(require('less/tree')); -(function (tree) { - -tree.URL = function (val, paths) { - if (val.data) { - this.attrs = val; - } else { - // Add the base path if the URL is relative and we are in the browser - if (!/^(?:https?:\/|file:\/|data:\/)?\//.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') { - val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - this.value = val; - this.paths = paths; - } -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data - : this.value.toCSS()) + ")"; - }, - eval: function (ctx) { - return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Variable = function (name, index) { this.name = name, this.index = index }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { message: "variable " + name + " is undefined", - index: this.index }; - } - } -}; - -})(require('less/tree')); -require('less/tree').find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -require('less/tree').jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; -// -// browser.js - client-side engine -// - -var isFileProtocol = (location.protocol === 'file:' || - location.protocol === 'chrome:' || - location.protocol === 'chrome-extension:' || - location.protocol === 'resource:'); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -// -// Watch mode -// -less.watch = function () { return this.watchMode = true }; -less.unwatch = function () { return this.watchMode = false }; - -if (less.env === 'development') { - less.optimization = 0; - - if (/!watch/.test(location.hash)) { - less.watch(); - } - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (root, sheet, env) { - if (root) { - createCSS(root.toCSS(), sheet, env.lastModified); - } - }); - } - }, less.poll); -} else { - less.optimization = 3; -} - -var cache; - -try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; -} catch (_) { - cache = null; -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (root, sheet, env) { - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) { - styles[i].type = 'text/css'; - styles[i].innerHTML = tree.toCSS(); - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - var url = window.location.href.replace(/[#?].*$/, ''); - var href = sheet.href.replace(/\?.*$/, ''); - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - - // Stylesheets in IE don't always return the full path - if (! /^(https?|file):/.test(href)) { - if (href.charAt(0) == "/") { - href = window.location.protocol + "//" + window.location.host + href; - } else { - href = url.slice(0, url.lastIndexOf('/') + 1) + href; - } - } - - xhr(sheet.href, sheet.type, function (data, lastModified) { - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, sheet, { local: true, remaining: remaining }); - } else { - // Use remote copy (re-parse) - try { - new(less.Parser)({ - optimization: less.optimization, - paths: [href.replace(/[\w\.-]+$/, '')], - mime: sheet.type - }).parse(data, function (e, root) { - if (e) { return error(e, href) } - try { - callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining }); - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } catch (e) { - error(e, href); - } - }); - } catch (e) { - error(e, href); - } - } - }, function (status, url) { - throw new(Error)("Couldn't load " + url + " (" + status + ")"); - }); -} - -function extractId(href) { - return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\?.*$/, '' ) // Remove query - .replace(/\.[^\.\/]+$/, '' ) // Remove file extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - var css; - - // Strip the query-string - var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If the stylesheet doesn't exist, create a new node - if ((css = document.getElementById(id)) === null) { - css = document.createElement('style'); - css.type = 'text/css'; - css.media = sheet.media || 'screen'; - css.id = id; - document.getElementsByTagName('head')[0].appendChild(css); - } - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - (function (node) { - if (css.childNodes.length > 0) { - if (css.firstChild.nodeValue !== node.nodeValue) { - css.replaceChild(node, css.firstChild); - } - } else { - css.appendChild(node); - } - })(document.createTextNode(styles)); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? false : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - if (isFileProtocol) { - if (xhr.status === 0) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new(XMLHttpRequest); - } else { - try { - return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX."); - return null; - } - } -} - -function removeNode(node) { - return node && node.parentNode.removeChild(node); -} - -function log(str) { - if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } -} - -function error(e, href) { - var id = 'less-error-message:' + extractId(href); - - var template = ['
    ', - '
  • {0}
    • ', - '
  • {current}
    • ', - '
  • {2}
    • ', - '
'].join('\n'); - - var elem = document.createElement('div'), timer, content; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

' + (e.message || 'There is an error in your .less file') + - '

' + '

' + href + " "; - - if (e.extract) { - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

' + - template.replace(/\[(-?\d)\]/g, function (_, i) { - return (parseInt(e.line) + parseInt(i)) || ''; - }).replace(/\{(\d)\}/g, function (_, i) { - return e.extract[parseInt(i)] || ''; - }).replace(/\{current\}/, e.extract[1].slice(0, e.column) + '' + - e.extract[1].slice(e.column) + ''); - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #ee4444;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.ctx {', - 'color: #dd4444;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); - - if (less.env == 'development') { - timer = setInterval(function () { - if (document.body) { - if (document.getElementById(id)) { - document.body.replaceChild(elem, document.getElementById(id)); - } else { - document.body.insertBefore(elem, document.body.firstChild); - } - clearInterval(timer); - } - }, 10); - } -} - -})(window); diff --git a/awx/ui/static/lib/less.js/dist/less-1.1.2.min.js b/awx/ui/static/lib/less.js/dist/less-1.1.2.min.js deleted file mode 100644 index 9b2fc8a43b..0000000000 --- a/awx/ui/static/lib/less.js/dist/less-1.1.2.min.js +++ /dev/null @@ -1,16 +0,0 @@ -// -// LESS - Leaner CSS v1.1.2 -// http://lesscss.org -// -// Copyright (c) 2009-2011, Alexis Sellier -// Licensed under the Apache 2.0 License. -// -// -// LESS - Leaner CSS v1.1.2 -// http://lesscss.org -// -// Copyright (c) 2009-2011, Alexis Sellier -// Licensed under the Apache 2.0 License. -// -(function(a,b){function v(a,b){var c="less-error-message:"+p(b),e=["
    ",'
  • {0}
    • ',"
  • {current}
    • ",'
  • {2}
    • ',"
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"+(a.message||"There is an error in your .less file")+"

"+'

'+b+" ",a.extract&&(h+="on line "+a.line+", column "+(a.column+1)+":

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"+b.trim():b.toCSS(a)}).join("")}}(c("less/tree")),function(b){b.URL=function(b,c){b.data?this.attrs=b:(!/^(?:https?:\/|file:\/|data:\/)?\//.test(b.value)&&c.length>0&&typeof a!="undefined"&&(b.value=c[0]+(b.value.charAt(0)==="/"?b.value.slice(1):b.value)),this.value=b,this.paths=c)},b.URL.prototype={toCSS:function(){return"url("+(this.attrs?"data:"+this.attrs.mime+this.attrs.charset+this.attrs.base64+this.attrs.data:this.value.toCSS())+")"},eval:function(a){return this.attrs?this:new b.URL(this.value.eval(a),this.paths)}}}(c("less/tree")),function(a){a.Value=function(a){this.value=a,this.is="value"},a.Value.prototype={eval:function(b){return this.value.length===1?this.value[0].eval(b):new a.Value(this.value.map(function(a){return a.eval(b)}))},toCSS:function(a){return this.value.map(function(b){return b.toCSS(a)}).join(a.compress?",":", ")}}}(c("less/tree")),function(a){a.Variable=function(a,b){this.name=a,this.index=b},a.Variable.prototype={eval:function(b){var c,d,e=this.name;e.indexOf("@@")==0&&(e="@"+(new a.Variable(e.slice(1))).eval(b).value);if(c=a.find(b.frames,function(a){ -if(d=a.variable(e))return d.value.eval(b)}))return c;throw{message:"variable "+e+" is undefined",index:this.index}}}}(c("less/tree")),c("less/tree").find=function(a,b){for(var c=0,d;c1?"["+a.value.map(function(a){return a.toCSS(!1)}).join(", ")+"]":a.toCSS(!1)};var g=location.protocol==="file:"||location.protocol==="chrome:"||location.protocol==="chrome-extension:"||location.protocol==="resource:";d.env=d.env||(location.hostname=="127.0.0.1"||location.hostname=="0.0.0.0"||location.hostname=="localhost"||location.port.length>0||g?"development":"production"),d.async=!1,d.poll=d.poll||(g?1e3:1500),d.watch=function(){return this.watchMode=!0},d.unwatch=function(){return this.watchMode=!1},d.env==="development"?(d.optimization=0,/!watch/.test(location.hash)&&d.watch(),d.watchTimer=setInterval(function(){d.watchMode&&n(function(a,b,c){a&&q(a.toCSS(),b,c.lastModified)})},d.poll)):d.optimization=3;var h;try{h=typeof a.localStorage=="undefined"?null:a.localStorage}catch(i){h=null}var j=document.getElementsByTagName("link"),k=/^text\/(x-)?less$/;d.sheets=[];for(var l=0;l>> 0; - for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree; - -if (typeof(window) === 'undefined') { - less = exports, - tree = require('less/tree'); -} else { - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - mime: env && env.mime, // MIME type of .less files - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (root) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - that.files[path] = root; // Store the root - - callback(root); - - if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, c, index, endIndex, k, mem; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - mem = i += length; - endIndex = i + chunks[j].length - length; - - while (i < endIndex) { - c = input.charCodeAt(i); - if (! (c === 32 || c === 10 || c === 9)) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - chunks = []; - input = str.replace(/\r\n/g, '\n'); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /[^"'`\{\}\/\(\)]+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - level = 0, - match, - chunk = chunks[0], - inParam, - inString; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = i; - - if (!inString && !inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - if (c === '{' && !inString && !inParam) { level ++; - chunk.push(c); - } else if (c === '}' && !inString && !inParam) { level --; - chunk.push(c); - chunks[++j] = chunk = []; - } else if (c === '(' && !inString && !inParam) { - chunk.push(c); - inParam = true; - } else if (c === ')' && !inString && inParam) { - chunk.push(c); - inParam = false; - } else { - if (c === '"' || c === "'" || c === '`') { - if (! inString) { - inString = c; - } else { - inString = inString === c ? false : inString; - } - } - chunk.push(c); - } - } - if (level > 0) { - throw { - type: 'Syntax', - message: "Missing closing `}`", - filename: env.filename - }; - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = []; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false }); - } catch (e) { - lines = input.split('\n'); - line = getLine(e.index); - - for (var n = e.index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - throw { - type: e.type, - message: e.message, - filename: env.filename, - index: e.index, - line: typeof(line) === 'number' ? line + 1 : null, - callLine: e.call && (getLine(e.call) + 1), - callExtract: lines[getLine(e.call)], - stack: e.stack, - column: column, - extract: [ - lines[line - 1], - lines[line], - lines[line + 1] - ] - }; - } - if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - - function getLine(index) { - return index ? (input.slice(0, index).match(/\n/g) || "").length : null; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - name: "ParseError", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function () { callback(error, root) }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - if (k = $(/^[A-Za-z-]+/)) { return new(tree.Keyword)(k) } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, args, index = i; - - if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return; - - name = name[1].toLowerCase(); - - if (name === 'url') { return null } - else { i += name.length } - - if (name === 'alpha') { return $(this.alpha) } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; - if (! $(')')) throw new(Error)("missing closing ) for url()"); - - return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - dataURI: function () { - var obj; - - if ($(/^data:/)) { - obj = {}; - obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; - obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; - obj.base64 = $(/^;\s*base64/) || ''; - obj.data = $(/^,\s*[^)]+/); - - if (obj.data) { return obj } - } - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i); - - if (s !== '.' && s !== '#') { return } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(c, e)); - c = $('>'); - } - $('(') && (args = $(this.entities.arguments)) && $(')'); - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index); - } - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value; - - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { - name = match[1]; - - while (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - if (value = $(this.expression)) { - params.push({ name: param.name, value: value }); - } else { - throw new(Error)("Expected value"); - } - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - if (! $(',')) { break } - } - if (! $(')')) throw new(Error)("Expected )"); - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - if (! $(')')) throw new(Error)("missing closing ) for alpha()"); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c; - - c = $(this.combinator); - e = $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || $('*') || $(this.attribute) || $(/^\([^)@]+\)/); - - if (e) { return new(tree.Element)(c, e) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '&' || c === '+' || c === '~') { - i++; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(c); - } else if (c === ':' && input.charAt(i + 1) === ':') { - i += 2; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)('::'); - } else if (input.charAt(i - 1) === ' ') { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match; - save(); - - if (match = /^([.#: \w-]+)[\s\n]*\{/.exec(chunks[j])) { - i += match[0].length - 1; - selectors = [new(tree.Selector)([new(tree.Element)(null, match[1])])]; - } else { - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - } - - if (selectors.length > 0 && (rules = $(this.block))) { - return new(tree.Ruleset)(selectors, rules); - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path; - if ($(/^@import\s+/) && - (path = $(this.entities.quoted) || $(this.entities.url)) && - $(';')) { - return new(tree.Import)(path, imports); - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, types; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import'])) { - return value; - } else if (name = $(/^@media|@page|@-[-a-z]+/)) { - types = ($(/^[^{]+/) || '').trim(); - if (rules = $(this.block)) { - return new(tree.Directive)(name + " " + types, rules); - } - } else if (name = $(/^@[-a-z]+/)) { - if (name === '@font-face') { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while ((op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (typeof(window) !== 'undefined') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (path.charAt(0) !== '/' && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math.round(number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math.round(n); - } else { - throw { - error: "RuntimeError", - message: "math functions take numbers as parameters" - }; - } - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('less/tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index) { - this.name = name; - this.args = args; - this.index = index; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { message: "error evaluating function `" + this.name + "`", - index: this.index }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('less/tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else if (rgb.length == 8) { - this.alpha = parseInt(rgb.substring(0,2), 16) / 255.0; - this.rgb = rgb.substr(2).match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - } -}; - - -})(require('less/tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - env.frames.unshift(this); - this.ruleset = this.ruleset && this.ruleset.eval(env); - env.frames.shift(); - return this; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Element = function (combinator, value) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - this.value = value.trim(); -}; -tree.Element.prototype.toCSS = function (env) { - return this.combinator.toCSS(env || {}) + this.value; -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - '&' : '', - ':' : ' :', - '::': '::', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('less/tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(' '); - } -}; - -})(require('less/tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports) { - var that = this; - - this._path = path; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (root) { - if (! root) { - throw new(Error)("Error parsing " + that.path); - } - that.root = root; - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function () { - if (this.css) { - return "@import " + this._path.toCSS() + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return ruleset.rules; - } - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('less/tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value } -}; - -})(require('less/tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, args, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(args, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments).rules); - match = true; - } catch (e) { - throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; - } - } - } - if (match) { - return rules; - } else { - throw { message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index }; - } - } - } - throw { message: this.selector.toCSS().trim() + " is undefined", - index: this.index }; - } -}; - -tree.mixin.Definition = function (name, params, rules) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - eval: function (env, args) { - var frame = new(tree.Ruleset)(null, []), context, _arguments = []; - - for (var i = 0, val; i < this.params.length; i++) { - if (this.params[i].name) { - if (val = (args && args[i]) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); - } else { - throw { message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push(args[i] || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (argsLength < this.required) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return v.value || v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + ";"; - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); - - ruleset.root = this.root; - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > 1) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - rule; - - if (! this.root) { - if (context.length === 0) { - paths = this.selectors.map(function (s) { return [s] }); - } else { - for (var s = 0; s < this.selectors.length; s++) { - for (var c = 0; c < context.length; c++) { - paths.push(context[c].concat([this.selectors[s]])); - } - } - } - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); - css.push(selector, - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - } -}; -})(require('less/tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; - if (this.elements[0].combinator.value === "") { - this.elements[0].combinator.value = ' '; - } -}; -tree.Selector.prototype.match = function (other) { - if (this.elements[0].value === other.elements[0].value) { - return true; - } else { - return false; - } -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - return this._css = this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); -}; - -})(require('less/tree')); -(function (tree) { - -tree.URL = function (val, paths) { - if (val.data) { - this.attrs = val; - } else { - // Add the base path if the URL is relative and we are in the browser - if (!/^(?:https?:\/|file:\/|data:\/)?\//.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') { - val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - this.value = val; - this.paths = paths; - } -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data - : this.value.toCSS()) + ")"; - }, - eval: function (ctx) { - return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Variable = function (name, index) { this.name = name, this.index = index }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { message: "variable " + name + " is undefined", - index: this.index }; - } - } -}; - -})(require('less/tree')); -require('less/tree').find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -require('less/tree').jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; -// -// browser.js - client-side engine -// - -var isFileProtocol = (location.protocol === 'file:' || - location.protocol === 'chrome:' || - location.protocol === 'chrome-extension:' || - location.protocol === 'resource:'); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 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sheet.href.replace(/\?.*$/, '') : ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If the stylesheet doesn't exist, create a new node - if ((css = document.getElementById(id)) === null) { - css = document.createElement('style'); - css.type = 'text/css'; - css.media = sheet.media || 'screen'; - css.id = id; - document.getElementsByTagName('head')[0].appendChild(css); - } - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - (function (node) { - if (css.childNodes.length > 0) { - if (css.firstChild.nodeValue !== node.nodeValue) { - css.replaceChild(node, css.firstChild); - } - } else { - css.appendChild(node); - } - })(document.createTextNode(styles)); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? 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' + '

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This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - mime: env && env.mime, // MIME type of .less files - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (root) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - that.files[path] = root; // Store the root - - callback(root); - - if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, c, index, endIndex, k, mem; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - mem = i += length; - endIndex = i + chunks[j].length - length; - - while (i < endIndex) { - c = input.charCodeAt(i); - if (! (c === 32 || c === 10 || c === 9)) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - chunks = []; - input = str.replace(/\r\n/g, '\n'); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /[^"'`\{\}\/\(\)]+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - level = 0, - match, - chunk = chunks[0], - inParam, - inString; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = i; - - if (!inString && !inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - if (c === '{' && !inString && !inParam) { level ++; - chunk.push(c); - } else if (c === '}' && !inString && !inParam) { level --; - chunk.push(c); - chunks[++j] = chunk = []; - } else if (c === '(' && !inString && !inParam) { - chunk.push(c); - inParam = true; - } else if (c === ')' && !inString && inParam) { - chunk.push(c); - inParam = false; - } else { - if (c === '"' || c === "'" || c === '`') { - if (! inString) { - inString = c; - } else { - inString = inString === c ? false : inString; - } - } - chunk.push(c); - } - } - if (level > 0) { - throw { - type: 'Syntax', - message: "Missing closing `}`", - filename: env.filename - }; - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = []; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false }); - } catch (e) { - lines = input.split('\n'); - line = getLine(e.index); - - for (var n = e.index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - throw { - type: e.type, - message: e.message, - filename: env.filename, - index: e.index, - line: typeof(line) === 'number' ? line + 1 : null, - callLine: e.call && (getLine(e.call) + 1), - callExtract: lines[getLine(e.call)], - stack: e.stack, - column: column, - extract: [ - lines[line - 1], - lines[line], - lines[line + 1] - ] - }; - } - if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - - function getLine(index) { - return index ? (input.slice(0, index).match(/\n/g) || "").length : null; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - name: "ParseError", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function () { callback(error, root) }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - if (k = $(/^[A-Za-z-]+/)) { return new(tree.Keyword)(k) } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, args, index = i; - - if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return; - - name = name[1].toLowerCase(); - - if (name === 'url') { return null } - else { i += name.length } - - if (name === 'alpha') { return $(this.alpha) } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; - if (! $(')')) throw new(Error)("missing closing ) for url()"); - - return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - dataURI: function () { - var obj; - - if ($(/^data:/)) { - obj = {}; - obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; - obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; - obj.base64 = $(/^;\s*base64/) || ''; - obj.data = $(/^,\s*[^)]+/); - - if (obj.data) { return obj } - } - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i); - - if (s !== '.' && s !== '#') { return } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(c, e)); - c = $('>'); - } - $('(') && (args = $(this.entities.arguments)) && $(')'); - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index); - } - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value; - - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { - name = match[1]; - - while (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - if (value = $(this.expression)) { - params.push({ name: param.name, value: value }); - } else { - throw new(Error)("Expected value"); - } - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - if (! $(',')) { break } - } - if (! $(')')) throw new(Error)("Expected )"); - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - if (! $(')')) throw new(Error)("missing closing ) for alpha()"); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c; - - c = $(this.combinator); - e = $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || $('*') || $(this.attribute) || $(/^\([^)@]+\)/) || $(/^(?:\d*\.)?\d+%/); - - if (e) { return new(tree.Element)(c, e) } - - if (c.value && c.value[0] === '&') { - return new(tree.Element)(c, null); - } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~') { - i++; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(c); - } else if (c === '&') { - match = '&'; - i++; - if(input.charAt(i) === ' ') { - match = '& '; - } - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(match); - } else if (c === ':' && input.charAt(i + 1) === ':') { - i += 2; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)('::'); - } else if (input.charAt(i - 1) === ' ') { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match; - save(); - - if (match = /^([.#:% \w-]+)[\s\n]*\{/.exec(chunks[j])) { - i += match[0].length - 1; - selectors = [new(tree.Selector)([new(tree.Element)(null, match[1])])]; - } else { - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - } - - if (selectors.length > 0 && (rules = $(this.block))) { - return new(tree.Ruleset)(selectors, rules); - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path; - if ($(/^@import\s+/) && - (path = $(this.entities.quoted) || $(this.entities.url)) && - $(';')) { - return new(tree.Import)(path, imports); - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, types; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import'])) { - return value; - } else if (name = $(/^@media|@page/) || $(/^@(?:-webkit-)?keyframes/)) { - types = ($(/^[^{]+/) || '').trim(); - if (rules = $(this.block)) { - return new(tree.Directive)(name + " " + types, rules); - } - } else if (name = $(/^@[-a-z]+/)) { - if (name === '@font-face') { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while ((op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (typeof(window) !== 'undefined') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (path.charAt(0) !== '/' && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math.round(number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math.round(n); - } else { - throw { - error: "RuntimeError", - message: "math functions take numbers as parameters" - }; - } - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('less/tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index) { - this.name = name; - this.args = args; - this.index = index; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { message: "error evaluating function `" + this.name + "`", - index: this.index }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('less/tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else if (rgb.length == 8) { - this.alpha = parseInt(rgb.substring(0,2), 16) / 255.0; - this.rgb = rgb.substr(2).match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - } -}; - - -})(require('less/tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - env.frames.unshift(this); - this.ruleset = this.ruleset && this.ruleset.eval(env); - env.frames.shift(); - return this; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Element = function (combinator, value) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - this.value = value ? value.trim() : ""; -}; -tree.Element.prototype.toCSS = function (env) { - return this.combinator.toCSS(env || {}) + this.value; -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else if (value === '& ') { - this.value = '& '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - '&' : '', - '& ' : ' ', - ':' : ' :', - '::': '::', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('less/tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(' '); - } -}; - -})(require('less/tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports) { - var that = this; - - this._path = path; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (root) { - if (! root) { - throw new(Error)("Error parsing " + that.path); - } - that.root = root; - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function () { - if (this.css) { - return "@import " + this._path.toCSS() + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return ruleset.rules; - } - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('less/tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value } -}; - -})(require('less/tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, args, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(args, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments).rules); - match = true; - } catch (e) { - throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; - } - } - } - if (match) { - return rules; - } else { - throw { message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index }; - } - } - } - throw { message: this.selector.toCSS().trim() + " is undefined", - index: this.index }; - } -}; - -tree.mixin.Definition = function (name, params, rules) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - eval: function (env, args) { - var frame = new(tree.Ruleset)(null, []), context, _arguments = []; - - for (var i = 0, val; i < this.params.length; i++) { - if (this.params[i].name) { - if (val = (args && args[i]) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); - } else { - throw { message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push(args[i] || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (argsLength < this.required) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return v.value || v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + ";"; - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); - - ruleset.root = this.root; - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > 1) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - rule; - - if (! this.root) { - if (context.length === 0) { - paths = this.selectors.map(function (s) { return [s] }); - } else { - this.joinSelectors( paths, context, this.selectors ); - } - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); - css.push(selector, - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - var before = [], after = [], beforeElements = [], - afterElements = [], hasParentSelector = false, el; - - for (var i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.combinator.value[0] === '&') { - hasParentSelector = true; - } - if (hasParentSelector) afterElements.push(el); - else beforeElements.push(el); - } - - if (! hasParentSelector) { - afterElements = beforeElements; - beforeElements = []; - } - - if (beforeElements.length > 0) { - before.push(new(tree.Selector)(beforeElements)); - } - - if (afterElements.length > 0) { - after.push(new(tree.Selector)(afterElements)); - } - - for (var c = 0; c < context.length; c++) { - paths.push(before.concat(context[c]).concat(after)); - } - } -}; -})(require('less/tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; - if (this.elements[0].combinator.value === "") { - this.elements[0].combinator.value = ' '; - } -}; -tree.Selector.prototype.match = function (other) { - if (this.elements[0].value === other.elements[0].value) { - return true; - } else { - return false; - } -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - return this._css = this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); -}; - -})(require('less/tree')); -(function (tree) { - -tree.URL = function (val, paths) { - if (val.data) { - this.attrs = val; - } else { - // Add the base path if the URL is relative and we are in the browser - if (!/^(?:https?:\/|file:\/|data:\/)?\//.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') { - val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - this.value = val; - this.paths = paths; - } -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data - : this.value.toCSS()) + ")"; - }, - eval: function (ctx) { - return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Variable = function (name, index) { this.name = name, this.index = index }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { message: "variable " + name + " is undefined", - index: this.index }; - } - } -}; - -})(require('less/tree')); -require('less/tree').find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -require('less/tree').jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; -// -// browser.js - client-side engine -// - -var isFileProtocol = (location.protocol === 'file:' || - location.protocol === 'chrome:' || - location.protocol === 'chrome-extension:' || - location.protocol === 'resource:'); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -// -// Watch mode -// -less.watch = function () { return this.watchMode = true }; -less.unwatch = function () { return this.watchMode = false }; - -if (less.env === 'development') { - less.optimization = 0; - - if (/!watch/.test(location.hash)) { - less.watch(); - } - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (root, sheet, env) { - if (root) { - createCSS(root.toCSS(), sheet, env.lastModified); - } - }); - } - }, less.poll); -} else { - less.optimization = 3; -} - -var cache; - -try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; -} catch (_) { - cache = null; -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (root, sheet, env) { - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) { - styles[i].type = 'text/css'; - styles[i].innerHTML = tree.toCSS(); - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - var url = window.location.href.replace(/[#?].*$/, ''); - var href = sheet.href.replace(/\?.*$/, ''); - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - - // Stylesheets in IE don't always return the full path - if (! /^(https?|file):/.test(href)) { - if (href.charAt(0) == "/") { - href = window.location.protocol + "//" + window.location.host + href; - } else { - href = url.slice(0, url.lastIndexOf('/') + 1) + href; - } - } - - xhr(sheet.href, sheet.type, function (data, lastModified) { - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, sheet, { local: true, remaining: remaining }); - } else { - // Use remote copy (re-parse) - try { - new(less.Parser)({ - optimization: less.optimization, - paths: [href.replace(/[\w\.-]+$/, '')], - mime: sheet.type - }).parse(data, function (e, root) { - if (e) { return error(e, href) } - try { - callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining }); - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } catch (e) { - error(e, href); - } - }); - } catch (e) { - error(e, href); - } - } - }, function (status, url) { - throw new(Error)("Couldn't load " + url + " (" + status + ")"); - }); -} - -function extractId(href) { - return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\?.*$/, '' ) // Remove query - .replace(/\.[^\.\/]+$/, '' ) // Remove file extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - var css; - - // Strip the query-string - var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If the stylesheet doesn't exist, create a new node - if ((css = document.getElementById(id)) === null) { - css = document.createElement('style'); - css.type = 'text/css'; - css.media = sheet.media || 'screen'; - css.id = id; - document.getElementsByTagName('head')[0].appendChild(css); - } - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - (function (node) { - if (css.childNodes.length > 0) { - if (css.firstChild.nodeValue !== node.nodeValue) { - css.replaceChild(node, css.firstChild); - } - } else { - css.appendChild(node); - } - })(document.createTextNode(styles)); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? false : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - if (isFileProtocol) { - if (xhr.status === 0) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new(XMLHttpRequest); - } else { - try { - return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX."); - return null; - } - } -} - -function removeNode(node) { - return node && node.parentNode.removeChild(node); -} - -function log(str) { - if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } -} - -function error(e, href) { - var id = 'less-error-message:' + extractId(href); - - var template = ['
    ', - '
  • {0}
    • ', - '
  • {current}
    • ', - '
  • {2}
    • ', - '
'].join('\n'); - - var elem = document.createElement('div'), timer, content; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

' + (e.message || 'There is an error in your .less file') + - '

' + '

' + href + " "; - - if (e.extract) { - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

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new a.Dimension(Math.round(b.toHSL().s*100),"%")},lightness:function(b){return new a.Dimension(Math.round(b.toHSL().l*100),"%")},alpha:function(b){return new a.Dimension(b.toHSL().a)},saturate:function(a,c){var e=a.toHSL();e.s+=c.value/100,e.s=d(e.s);return b(e)},desaturate:function(a,c){var e=a.toHSL();e.s-=c.value/100,e.s=d(e.s);return b(e)},lighten:function(a,c){var e=a.toHSL();e.l+=c.value/100,e.l=d(e.l);return b(e)},darken:function(a,c){var e=a.toHSL();e.l-=c.value/100,e.l=d(e.l);return b(e)},fadein:function(a,c){var e=a.toHSL();e.a+=c.value/100,e.a=d(e.a);return b(e)},fadeout:function(a,c){var e=a.toHSL();e.a-=c.value/100,e.a=d(e.a);return b(e)},spin:function(a,c){var d=a.toHSL(),e=(d.h+c.value)%360;d.h=e<0?360+e:e;return b(d)},mix:function(b,c,d){var e=d.value/100,f=e*2-1,g=b.toHSL().a-c.toHSL().a,h=((f*g==-1?f:(f+g)/(1+f*g))+1)/2,i=1-h,j=[b.rgb[0]*h+c.rgb[0]*i,b.rgb[1]*h+c.rgb[1]*i,b.rgb[2]*h+c.rgb[2]*i],k=b.alpha*e+c.alpha*(1-e);return new a.Color(j,k)},greyscale:function(b){return this.desaturate(b,new a.Dimension(100))},e:function(b){return new a.Anonymous(b instanceof a.JavaScript?b.evaluated:b)},escape:function(b){return new a.Anonymous(encodeURI(b.value).replace(/=/g,"%3D").replace(/:/g,"%3A").replace(/#/g,"%23").replace(/;/g,"%3B").replace(/\(/g,"%28").replace(/\)/g,"%29"))},"%":function(b){var c=Array.prototype.slice.call(arguments,1),d=b.value;for(var e=0;e255?255:a<0?0:a).toString(16);return a.length===1?"0"+a:a}).join("")},operate:function(b,c){var d=[];c instanceof a.Color||(c=c.toColor());for(var e=0;e<3;e++)d[e]=a.operate(b,this.rgb[e],c.rgb[e]);return new a.Color(d,this.alpha+c.alpha)},toHSL:function(){var a=this.rgb[0]/255,b=this.rgb[1]/255,c=this.rgb[2]/255,d=this.alpha,e=Math.max(a,b,c),f=Math.min(a,b,c),g,h,i=(e+f)/2,j=e-f;if(e===f)g=h=0;else{h=i>.5?j/(2-e-f):j/(e+f);switch(e){case a:g=(b-c)/j+(b":a.compress?">":" > "}[this.value]}}(c("less/tree")),function(a){a.Expression=function(a){this.value=a},a.Expression.prototype={eval:function(b){return this.value.length>1?new a.Expression(this.value.map(function(a){return a.eval(b)})):this.value.length===1?this.value[0].eval(b):this},toCSS:function(a){return this.value.map(function(b){return b.toCSS(a)}).join(" ")}}}(c("less/tree")),function(a){a.Import=function(b,c){var d=this;this._path=b,b instanceof a.Quoted?this.path=/\.(le?|c)ss$/.test(b.value)?b.value:b.value+".less":this.path=b.value.value||b.value,this.css=/css$/.test(this.path),this.css||c.push(this.path,function(a){if(!a)throw new Error("Error parsing "+d.path);d.root=a})},a.Import.prototype={toCSS:function(){return this.css?"@import "+this._path.toCSS()+";\n":""},eval:function(b){var c;if(this.css)return this;c=new a.Ruleset(null,this.root.rules.slice(0));for(var d=0;d0){c=this.arguments&&this.arguments.map(function(b){return b.eval(a)});for(var g=0;g0&&c>this.params.length)return!1;d=Math.min(c,this.arity);for(var e=0;e1?Array.prototype.push.apply(d,e.find(new a.Selector(b.elements.slice(1)),c)):d.push(e);break}});return this._lookups[g]=d},toCSS:function(b,c){var d=[],e=[],f=[],g=[],h,i;this.root||(b.length===0?g=this.selectors.map(function(a){return[a]}):this.joinSelectors(g,b,this.selectors));for(var j=0;j0&&(h=g.map(function(a){return a.map(function(a){return a.toCSS(c)}).join("").trim()}).join(c.compress?",":g.length>3?",\n":", "),d.push(h,(c.compress?"{":" {\n ")+e.join(c.compress?"":"\n ")+(c.compress?"}":"\n}\n"))),d.push(f);return d.join("")+(c.compress?"\n":"")},joinSelectors:function(a,b,c){for(var d=0;d0&&e.push(new a.Selector(g)),h.length>0&&f.push(new a.Selector(h));for(var l=0;l0&&typeof a!="undefined"&&(b.value=c[0]+(b.value.charAt(0)==="/"?b.value.slice(1):b.value)),this.value=b,this.paths=c)},b.URL.prototype={toCSS:function(){return"url("+(this.attrs?"data:"+this.attrs 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")+"]":a.toCSS(!1)};var f=location.protocol==="file:"||location.protocol==="chrome:"||location.protocol==="chrome-extension:"||location.protocol==="resource:";d.env=d.env||(location.hostname=="127.0.0.1"||location.hostname=="0.0.0.0"||location.hostname=="localhost"||location.port.length>0||f?"development":"production"),d.async=!1,d.poll=d.poll||(f?1e3:1500),d.watch=function(){return this.watchMode=!0},d.unwatch=function(){return this.watchMode=!1},d.env==="development"?(d.optimization=0,/!watch/.test(location.hash)&&d.watch(),d.watchTimer=setInterval(function(){d.watchMode&&m(function(a,b,c){a&&p(a.toCSS(),b,c.lastModified)})},d.poll)):d.optimization=3;var g;try{g=typeof a.localStorage=="undefined"?null:a.localStorage}catch(h){g=null}var i=document.getElementsByTagName("link"),j=/^text\/(x-)?less$/;d.sheets=[];for(var k=0;k>> 0; - for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - less = {}; - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'node'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - mime: env && env.mime, // MIME type of .less files - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (root) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - that.files[path] = root; // Store the root - - callback(root); - - if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, c, index, endIndex, k, mem; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - mem = i += length; - endIndex = i + chunks[j].length - length; - - while (i < endIndex) { - c = input.charCodeAt(i); - if (! (c === 32 || c === 10 || c === 9)) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - chunks = []; - input = str.replace(/\r\n/g, '\n'); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /[^"'`\{\}\/\(\)]+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - level = 0, - match, - chunk = chunks[0], - inParam, - inString; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = i; - - if (!inString && !inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - if (c === '{' && !inString && !inParam) { level ++; - chunk.push(c); - } else if (c === '}' && !inString && !inParam) { level --; - chunk.push(c); - chunks[++j] = chunk = []; - } else if (c === '(' && !inString && !inParam) { - chunk.push(c); - inParam = true; - } else if (c === ')' && !inString && inParam) { - chunk.push(c); - inParam = false; - } else { - if (c === '"' || c === "'" || c === '`') { - if (! inString) { - inString = c; - } else { - inString = inString === c ? false : inString; - } - } - chunk.push(c); - } - } - if (level > 0) { - throw { - type: 'Syntax', - message: "Missing closing `}`", - filename: env.filename - }; - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = []; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false }); - } catch (e) { - lines = input.split('\n'); - line = getLine(e.index); - - for (var n = e.index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - throw { - type: e.type, - message: e.message, - filename: env.filename, - index: e.index, - line: typeof(line) === 'number' ? line + 1 : null, - callLine: e.call && (getLine(e.call) + 1), - callExtract: lines[getLine(e.call)], - stack: e.stack, - column: column, - extract: [ - lines[line - 1], - lines[line], - lines[line + 1] - ] - }; - } - if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - - function getLine(index) { - return index ? (input.slice(0, index).match(/\n/g) || "").length : null; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - name: "ParseError", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function () { callback(error, root) }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { return new(tree.Keyword)(k) } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, args, index = i; - - if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return; - - name = name[1].toLowerCase(); - - if (name === 'url') { return null } - else { i += name.length } - - if (name === 'alpha') { return $(this.alpha) } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; - if (! $(')')) throw new(Error)("missing closing ) for url()"); - - return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - dataURI: function () { - var obj; - - if ($(/^data:/)) { - obj = {}; - obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; - obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; - obj.base64 = $(/^;\s*base64/) || ''; - obj.data = $(/^,\s*[^)]+/); - - if (obj.data) { return obj } - } - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i); - - if (s !== '.' && s !== '#') { return } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - $('(') && (args = $(this.entities.arguments)) && $(')'); - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index); - } - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value; - - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { - name = match[1]; - - while (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - if (value = $(this.expression)) { - params.push({ name: param.name, value: value }); - } else { - throw new(Error)("Expected value"); - } - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - if (! $(',')) { break } - } - if (! $(')')) throw new(Error)("Expected )"); - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - if (! $(')')) throw new(Error)("missing closing ) for alpha()"); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c; - - c = $(this.combinator); - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || - $('*') || $(this.attribute) || $(/^\([^)@]+\)/); - - if (e) { return new(tree.Element)(c, e, i) } - - if (c.value && c.value.charAt(0) === '&') { - return new(tree.Element)(c, null, i); - } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~') { - i++; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(c); - } else if (c === '&') { - match = '&'; - i++; - if(input.charAt(i) === ' ') { - match = '& '; - } - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(match); - } else if (c === ':' && input.charAt(i + 1) === ':') { - i += 2; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)('::'); - } else if (input.charAt(i - 1) === ' ') { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match; - save(); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - return new(tree.Ruleset)(selectors, rules); - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path; - if ($(/^@import\s+/) && - (path = $(this.entities.quoted) || $(this.entities.url)) && - $(';')) { - return new(tree.Import)(path, imports); - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, types; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import'])) { - return value; - } else if (name = $(/^@media|@page/) || $(/^@(?:-webkit-|-moz-)?keyframes/)) { - types = ($(/^[^{]+/) || '').trim(); - if (rules = $(this.block)) { - return new(tree.Directive)(name + " " + types, rules); - } - } else if (name = $(/^@[-a-z]+/)) { - if (name === '@font-face') { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while ((op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (path.charAt(0) !== '/' && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math.round(number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math.round(n); - } else { - throw { - error: "RuntimeError", - message: "math functions take numbers as parameters" - }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index) { - this.name = name; - this.args = args; - this.index = index; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { message: "error evaluating function `" + this.name + "`", - index: this.index }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - env.frames.unshift(this); - this.ruleset = this.ruleset && this.ruleset.eval(env); - env.frames.shift(); - return this; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - this.value = value ? value.trim() : ""; - this.index = index; -}; -tree.Element.prototype.toCSS = function (env) { - return this.combinator.toCSS(env || {}) + this.value; -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else if (value === '& ') { - this.value = '& '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - '&' : '', - '& ' : ' ', - ':' : ' :', - '::': '::', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports) { - var that = this; - - this._path = path; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css(\?.*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (root) { - if (! root) { - throw new(Error)("Error parsing " + that.path); - } - that.root = root; - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function () { - if (this.css) { - return "@import " + this._path.toCSS() + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, args, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(args, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments).rules); - match = true; - } catch (e) { - throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; - } - } - } - if (match) { - return rules; - } else { - throw { message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index }; - } - } - } - throw { message: this.selector.toCSS().trim() + " is undefined", - index: this.index }; - } -}; - -tree.mixin.Definition = function (name, params, rules) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - eval: function (env, args) { - var frame = new(tree.Ruleset)(null, []), context, _arguments = []; - - for (var i = 0, val; i < this.params.length; i++) { - if (this.params[i].name) { - if (val = (args && args[i]) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); - } else { - throw { message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push(args[i] || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (argsLength < this.required) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return v.value || v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + ";"; - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); - - ruleset.root = this.root; - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - rule; - - if (! this.root) { - if (context.length === 0) { - paths = this.selectors.map(function (s) { return [s] }); - } else { - this.joinSelectors( paths, context, this.selectors ); - } - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); - css.push(selector, - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - var before = [], after = [], beforeElements = [], - afterElements = [], hasParentSelector = false, el; - - for (var i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.combinator.value.charAt(0) === '&') { - hasParentSelector = true; - } - if (hasParentSelector) afterElements.push(el); - else beforeElements.push(el); - } - - if (! hasParentSelector) { - afterElements = beforeElements; - beforeElements = []; - } - - if (beforeElements.length > 0) { - before.push(new(tree.Selector)(beforeElements)); - } - - if (afterElements.length > 0) { - after.push(new(tree.Selector)(afterElements)); - } - - for (var c = 0; c < context.length; c++) { - paths.push(before.concat(context[c]).concat(after)); - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; - if (this.elements[0].combinator.value === "") { - this.elements[0].combinator.value = ' '; - } -}; -tree.Selector.prototype.match = function (other) { - var len = this.elements.length, - olen = other.elements.length, - max = Math.min(len, olen); - - if (len < olen) { - return false; - } else { - for (var i = 0; i < max; i++) { - if (this.elements[i].value !== other.elements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - return this._css = this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, paths) { - if (val.data) { - this.attrs = val; - } else { - // Add the base path if the URL is relative and we are in the browser - if (less.mode === 'browser' && !/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(val.value) && paths.length > 0) { - val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - this.value = val; - this.paths = paths; - } -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data - : this.value.toCSS()) + ")"; - }, - eval: function (ctx) { - return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index) { this.name = name, this.index = index }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { message: "variable " + name + " is undefined", - index: this.index }; - } - } -}; - -})(require('../tree')); -require('./tree').find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -require('./tree').jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; -// -// browser.js - client-side engine -// - -var isFileProtocol = (location.protocol === 'file:' || - location.protocol === 'chrome:' || - location.protocol === 'chrome-extension:' || - location.protocol === 'resource:'); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -// -// Watch mode -// -less.watch = function () { return this.watchMode = true }; -less.unwatch = function () { return this.watchMode = false }; - -if (less.env === 'development') { - less.optimization = 0; - - if (/!watch/.test(location.hash)) { - less.watch(); - } - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (root, sheet, env) { - if (root) { - createCSS(root.toCSS(), sheet, env.lastModified); - } - }); - } - }, less.poll); -} else { - less.optimization = 3; -} - -var cache; - -try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; -} catch (_) { - cache = null; -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (root, sheet, env) { - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) { - var css = tree.toCSS(); - var style = styles[i]; - try { - style.innerHTML = css; - } catch (_) { - style.styleSheets.cssText = css; - } - style.type = 'text/css'; - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - var url = window.location.href.replace(/[#?].*$/, ''); - var href = sheet.href.replace(/\?.*$/, ''); - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - - // Stylesheets in IE don't always return the full path - if (! /^(https?|file):/.test(href)) { - if (href.charAt(0) == "/") { - href = window.location.protocol + "//" + window.location.host + href; - } else { - href = url.slice(0, url.lastIndexOf('/') + 1) + href; - } - } - - xhr(sheet.href, sheet.type, function (data, lastModified) { - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, sheet, { local: true, remaining: remaining }); - } else { - // Use remote copy (re-parse) - try { - new(less.Parser)({ - optimization: less.optimization, - paths: [href.replace(/[\w\.-]+$/, '')], - mime: sheet.type - }).parse(data, function (e, root) { - if (e) { return error(e, href) } - try { - callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining }); - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } catch (e) { - error(e, href); - } - }); - } catch (e) { - error(e, href); - } - } - }, function (status, url) { - throw new(Error)("Couldn't load " + url + " (" + status + ")"); - }); -} - -function extractId(href) { - return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\?.*$/, '' ) // Remove query - .replace(/\.[^\.\/]+$/, '' ) // Remove file extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - var css; - - // Strip the query-string - var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If the stylesheet doesn't exist, create a new node - if ((css = document.getElementById(id)) === null) { - css = document.createElement('style'); - css.type = 'text/css'; - css.media = sheet.media || 'screen'; - css.id = id; - document.getElementsByTagName('head')[0].appendChild(css); - } - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - (function (node) { - if (css.childNodes.length > 0) { - if (css.firstChild.nodeValue !== node.nodeValue) { - css.replaceChild(node, css.firstChild); - } - } else { - css.appendChild(node); - } - })(document.createTextNode(styles)); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? false : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - if (isFileProtocol) { - if (xhr.status === 0) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new(XMLHttpRequest); - } else { - try { - return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX."); - return null; - } - } -} - -function removeNode(node) { - return node && node.parentNode.removeChild(node); -} - -function log(str) { - if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } -} - -function error(e, href) { - var id = 'less-error-message:' + extractId(href); - - var template = ['
    ', - '
  • {0}
    • ', - '
  • {current}
    • ', - '
  • {2}
    • ', - '
'].join('\n'); - - var elem = document.createElement('div'), timer, content; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

' + (e.message || 'There is an error in your .less file') + - '

' + '

' + href + " "; - - if (e.extract) { - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

' + - template.replace(/\[(-?\d)\]/g, function (_, i) { - return (parseInt(e.line) + parseInt(i)) || ''; - }).replace(/\{(\d)\}/g, function (_, i) { - return e.extract[parseInt(i)] || ''; - }).replace(/\{current\}/, e.extract[1].slice(0, e.column) + '' + - e.extract[1].slice(e.column) + ''); - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #ee4444;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.ctx {', - 'color: #dd4444;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); - - if (less.env == 'development') { - timer = setInterval(function () { - if (document.body) { - if (document.getElementById(id)) { - document.body.replaceChild(elem, document.getElementById(id)); - } else { - document.body.insertBefore(elem, document.body.firstChild); - } - clearInterval(timer); - } - }, 10); - } -} - -})(window); diff --git a/awx/ui/static/lib/less.js/dist/less-1.1.5.min.js b/awx/ui/static/lib/less.js/dist/less-1.1.5.min.js deleted file mode 100644 index 49949fbea5..0000000000 --- a/awx/ui/static/lib/less.js/dist/less-1.1.5.min.js +++ /dev/null @@ -1,9 +0,0 @@ -// -// LESS - Leaner CSS v1.1.5 -// http://lesscss.org -// -// Copyright (c) 2009-2011, Alexis Sellier -// Licensed under the Apache 2.0 License. -// -(function(a,b){function c(b){return a.less[b.split("/")[1]]}function l(){var a=document.getElementsByTagName("style");for(var b=0;b0?d.firstChild.nodeValue!==a.nodeValue&&d.replaceChild(a,d.firstChild):d.appendChild(a)})(document.createTextNode(a));c&&g&&(t("saving "+e+" to cache."),g.setItem(e,a),g.setItem(e+":timestamp",c))}function q(a,b,c,e){function i(b,c,d){b.status>=200&&b.status<300?c(b.responseText,b.getResponseHeader("Last-Modified")):typeof d=="function"&&d(b.status,a)}var g=r(),h=f?!1:d.async;typeof g.overrideMimeType=="function"&&g.overrideMimeType("text/css"),g.open("GET",a,h),g.setRequestHeader("Accept",b||"text/x-less, text/css; q=0.9, */*; q=0.5"),g.send(null),f?g.status===0?c(g.responseText):e(g.status,a):h?g.onreadystatechange=function(){g.readyState==4&&i(g,c,e)}:i(g,c,e)}function r(){if(a.XMLHttpRequest)return new XMLHttpRequest;try{return new ActiveXObject("MSXML2.XMLHTTP.3.0")}catch(b){return t("browser doesn't support AJAX."),null}}function s(a){return a&&a.parentNode.removeChild(a)}function t(a){d.env=="development"&&typeof console!="undefined"&&console.log("less: "+a)}function u(a,b){var c="less-error-message:"+o(b),e=["
    ",'
  • {0}
    • ',"
  • {current}
    • ",'
  • {2}
    • ',"
"].join("\n"),f=document.createElement("div"),g,h;f.id=c,f.className="less-error-message",h="

"+(a.message||"There is an error in your .less file")+"

"+'

'+b+" ",a.extract&&(h+="on line "+a.line+", column "+(a.column+1)+":

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l=0;l0&&(a.value=b[0]+(a.value.charAt(0)==="/"?a.value.slice(1):a.value)),this.value=a,this.paths=b)},a.URL.prototype={toCSS:function(){return"url("+(this.attrs?"data:"+this.attrs.mime+this.attrs.charset+this.attrs.base64+this.attrs.data:this.value.toCSS())+")"},eval:function(b){return this.attrs?this:new a.URL(this.value.eval(b),this.paths)}}}(c("../tree")),function(a){a.Value=function(a){this.value=a,this.is="value"},a.Value.prototype={eval:function(b){return this.value.length===1?this.value[0].eval(b):new a.Value(this.value.map(function(a){return a.eval(b)}))},toCSS:function(a){return this.value.map(function(b){return b.toCSS(a)}).join(a.compress?",":", ")}}}(c("../tree")),function(a){a.Variable=function(a,b){this.name=a,this.index=b},a.Variable.prototype={eval:function(b){var c,d,e=this.name;e.indexOf("@@")==0&&(e="@"+(new a.Variable(e.slice(1))).eval(b).value);if(c=a.find(b.frames,function(a){if(d=a.variable(e))return d.value.eval(b)}))return c;throw{message:"variable "+e+" is undefined",index:this.index}}}}(c("../tree")),c("./tree").find=function(a,b){for(var c=0,d;c1?"["+a.value.map(function(a){return a.toCSS(!1)}).join(", ")+"]":a.toCSS(!1)};var f=location.protocol==="file:"||location.protocol==="chrome:"||location.protocol==="chrome-extension:"||location.protocol==="resource:";d.env=d.env||(location.hostname=="127.0.0.1"||location.hostname=="0.0.0.0"||location.hostname=="localhost"||location.port.length>0||f?"development":"production"),d.async=!1,d.poll=d.poll||(f?1e3:1500),d.watch=function(){return this.watchMode=!0},d.unwatch=function(){return this.watchMode=!1},d.env==="development"?(d.optimization=0,/!watch/.test(location.hash)&&d.watch(),d.watchTimer=setInterval(function(){d.watchMode&&m(function(a,b,c){a&&p(a.toCSS(),b,c.lastModified)})},d.poll)):d.optimization=3;var g;try{g=typeof a.localStorage=="undefined"?null:a.localStorage}catch(h){g=null}var i=document.getElementsByTagName("link"),j=/^text\/(x-)?less$/;d.sheets=[];for(var k=0;k>> 0; - for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - less = {}; - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'node'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - mime: env && env.mime, // MIME type of .less files - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (root) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - that.files[path] = root; // Store the root - - callback(root); - - if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, c, index, endIndex, k, mem; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - mem = i += length; - endIndex = i + chunks[j].length - length; - - while (i < endIndex) { - c = input.charCodeAt(i); - if (! (c === 32 || c === 10 || c === 9)) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - chunks = []; - input = str.replace(/\r\n/g, '\n'); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /[^"'`\{\}\/\(\)]+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - level = 0, - match, - chunk = chunks[0], - inParam, - inString; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = i; - - if (!inString && !inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - if (c === '{' && !inString && !inParam) { level ++; - chunk.push(c); - } else if (c === '}' && !inString && !inParam) { level --; - chunk.push(c); - chunks[++j] = chunk = []; - } else if (c === '(' && !inString && !inParam) { - chunk.push(c); - inParam = true; - } else if (c === ')' && !inString && inParam) { - chunk.push(c); - inParam = false; - } else { - if (c === '"' || c === "'" || c === '`') { - if (! inString) { - inString = c; - } else { - inString = inString === c ? false : inString; - } - } - chunk.push(c); - } - } - if (level > 0) { - throw { - type: 'Syntax', - message: "Missing closing `}`", - filename: env.filename - }; - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = []; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false }); - } catch (e) { - lines = input.split('\n'); - line = getLine(e.index); - - for (var n = e.index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - throw { - type: e.type, - message: e.message, - filename: env.filename, - index: e.index, - line: typeof(line) === 'number' ? line + 1 : null, - callLine: e.call && (getLine(e.call) + 1), - callExtract: lines[getLine(e.call)], - stack: e.stack, - column: column, - extract: [ - lines[line - 1], - lines[line], - lines[line + 1] - ] - }; - } - if (options.yuicompress && less.mode === 'node') { - return require('./cssmin').compressor.cssmin(css); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - - function getLine(index) { - return index ? (input.slice(0, index).match(/\n/g) || "").length : null; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - name: "ParseError", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function () { callback(error, root) }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k) - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, args, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1].toLowerCase(); - - if (name === 'url') { return null } - else { i += name.length } - - if (name === 'alpha') { return $(this.alpha) } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; - if (! $(')')) throw new(Error)("missing closing ) for url()"); - - return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - dataURI: function () { - var obj; - - if ($(/^data:/)) { - obj = {}; - obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; - obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; - obj.base64 = $(/^;\s*base64/) || ''; - obj.data = $(/^,\s*[^)]+/); - - if (obj.data) { return obj } - } - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|rem|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i); - - if (s !== '.' && s !== '#') { return } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - $('(') && (args = $(this.entities.arguments)) && $(')'); - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index); - } - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value; - - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { - name = match[1]; - - while (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - if (value = $(this.expression)) { - params.push({ name: param.name, value: value }); - } else { - throw new(Error)("Expected value"); - } - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - if (! $(',')) { break } - } - if (! $(')')) throw new(Error)("Expected )"); - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - if (! $(')')) throw new(Error)("missing closing ) for alpha()"); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c; - - c = $(this.combinator); - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || - $('*') || $(this.attribute) || $(/^\([^)@]+\)/); - - if (e) { return new(tree.Element)(c, e, i) } - - if (c.value && c.value.charAt(0) === '&') { - return new(tree.Element)(c, null, i); - } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~') { - i++; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(c); - } else if (c === '&') { - match = '&'; - i++; - if(input.charAt(i) === ' ') { - match = '& '; - } - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(match); - } else if (c === ':' && input.charAt(i + 1) === ':') { - i += 2; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)('::'); - } else if (input.charAt(i - 1) === ' ') { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match; - save(); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - return new(tree.Ruleset)(selectors, rules); - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path; - if ($(/^@import\s+/) && - (path = $(this.entities.quoted) || $(this.entities.url)) && - $(';')) { - return new(tree.Import)(path, imports); - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, types; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import'])) { - return value; - } else if (name = $(/^@media|@page/) || $(/^@(?:-webkit-|-moz-|-o-|-ms-)[a-z0-9-]+/) || $('keyframes')) { - types = ($(/^[^{]+/) || '').trim(); - if (rules = $(this.block)) { - return new(tree.Directive)(name + " " + types, rules); - } - } else if (name = $(/^@[-a-z]+/)) { - if (name === '@font-face') { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (path.charAt(0) !== '/' && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n) { - return this._math('round', n); - }, - ceil: function (n) { - return this._math('ceil', n); - }, - floor: function (n) { - return this._math('floor', n); - }, - _math: function (fn, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math[fn](number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math[fn](n); - } else { - throw { - error: "RuntimeError", - message: "math functions take numbers as parameters" - }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index) { - this.name = name; - this.args = args; - this.index = index; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { message: "error evaluating function `" + this.name + "`", - index: this.index }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - env.frames.unshift(this); - this.ruleset = this.ruleset && this.ruleset.eval(env); - env.frames.shift(); - return this; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - this.value = value ? value.trim() : ""; - this.index = index; -}; -tree.Element.prototype.toCSS = function (env) { - return this.combinator.toCSS(env || {}) + this.value; -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else if (value === '& ') { - this.value = '& '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - '&' : '', - '& ' : ' ', - ':' : ' :', - '::': '::', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports) { - var that = this; - - this._path = path; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css(\?.*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (root) { - if (! root) { - throw new(Error)("Error parsing " + that.path); - } - that.root = root; - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function () { - if (this.css) { - return "@import " + this._path.toCSS() + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, args, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(args, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments).rules); - match = true; - } catch (e) { - throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; - } - } - } - if (match) { - return rules; - } else { - throw { message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index }; - } - } - } - throw { message: this.selector.toCSS().trim() + " is undefined", - index: this.index }; - } -}; - -tree.mixin.Definition = function (name, params, rules) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - eval: function (env, args) { - var frame = new(tree.Ruleset)(null, []), context, _arguments = []; - - for (var i = 0, val; i < this.params.length; i++) { - if (this.params[i].name) { - if (val = (args && args[i]) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); - } else { - throw { message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push(args[i] || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (argsLength < this.required) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return v.value || v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + ";"; - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); - - ruleset.root = this.root; - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - rule; - - if (! this.root) { - if (context.length === 0) { - paths = this.selectors.map(function (s) { return [s] }); - } else { - this.joinSelectors( paths, context, this.selectors ); - } - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); - css.push(selector, - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - var before = [], after = [], beforeElements = [], - afterElements = [], hasParentSelector = false, el; - - for (var i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.combinator.value.charAt(0) === '&') { - hasParentSelector = true; - } - if (hasParentSelector) afterElements.push(el); - else beforeElements.push(el); - } - - if (! hasParentSelector) { - afterElements = beforeElements; - beforeElements = []; - } - - if (beforeElements.length > 0) { - before.push(new(tree.Selector)(beforeElements)); - } - - if (afterElements.length > 0) { - after.push(new(tree.Selector)(afterElements)); - } - - for (var c = 0; c < context.length; c++) { - paths.push(before.concat(context[c]).concat(after)); - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; - if (this.elements[0].combinator.value === "") { - this.elements[0].combinator.value = ' '; - } -}; -tree.Selector.prototype.match = function (other) { - var len = this.elements.length, - olen = other.elements.length, - max = Math.min(len, olen); - - if (len < olen) { - return false; - } else { - for (var i = 0; i < max; i++) { - if (this.elements[i].value !== other.elements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - return this._css = this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, paths) { - if (val.data) { - this.attrs = val; - } else { - // Add the base path if the URL is relative and we are in the browser - if (typeof(window) !== 'undefined' && !/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(val.value) && paths.length > 0) { - val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - this.value = val; - this.paths = paths; - } -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data - : this.value.toCSS()) + ")"; - }, - eval: function (ctx) { - return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index) { this.name = name, this.index = index }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { message: "variable " + name + " is undefined", - index: this.index }; - } - } -}; - -})(require('../tree')); -require('./tree').find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -require('./tree').jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; -// -// browser.js - client-side engine -// - -var isFileProtocol = (location.protocol === 'file:' || - location.protocol === 'chrome:' || - location.protocol === 'chrome-extension:' || - location.protocol === 'resource:'); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -// -// Watch mode -// -less.watch = function () { return this.watchMode = true }; -less.unwatch = function () { return this.watchMode = false }; - -if (less.env === 'development') { - less.optimization = 0; - - if (/!watch/.test(location.hash)) { - less.watch(); - } - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (root, sheet, env) { - if (root) { - createCSS(root.toCSS(), sheet, env.lastModified); - } - }); - } - }, less.poll); -} else { - less.optimization = 3; -} - -var cache; - -try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; -} catch (_) { - cache = null; -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (root, sheet, env) { - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) { - var css = tree.toCSS(); - var style = styles[i]; - try { - style.innerHTML = css; - } catch (_) { - style.styleSheets.cssText = css; - } - style.type = 'text/css'; - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - var url = window.location.href.replace(/[#?].*$/, ''); - var href = sheet.href.replace(/\?.*$/, ''); - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - - // Stylesheets in IE don't always return the full path - if (! /^(https?|file):/.test(href)) { - if (href.charAt(0) == "/") { - href = window.location.protocol + "//" + window.location.host + href; - } else { - href = url.slice(0, url.lastIndexOf('/') + 1) + href; - } - } - - xhr(sheet.href, sheet.type, function (data, lastModified) { - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, sheet, { local: true, remaining: remaining }); - } else { - // Use remote copy (re-parse) - try { - new(less.Parser)({ - optimization: less.optimization, - paths: [href.replace(/[\w\.-]+$/, '')], - mime: sheet.type - }).parse(data, function (e, root) { - if (e) { return error(e, href) } - try { - callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining }); - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } catch (e) { - error(e, href); - } - }); - } catch (e) { - error(e, href); - } - } - }, function (status, url) { - throw new(Error)("Couldn't load " + url + " (" + status + ")"); - }); -} - -function extractId(href) { - return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\?.*$/, '' ) // Remove query - .replace(/\.[^\.\/]+$/, '' ) // Remove file extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - var css; - - // Strip the query-string - var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If the stylesheet doesn't exist, create a new node - if ((css = document.getElementById(id)) === null) { - css = document.createElement('style'); - css.type = 'text/css'; - css.media = sheet.media || 'screen'; - css.id = id; - document.getElementsByTagName('head')[0].appendChild(css); - } - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - (function (node) { - if (css.childNodes.length > 0) { - if (css.firstChild.nodeValue !== node.nodeValue) { - css.replaceChild(node, css.firstChild); - } - } else { - css.appendChild(node); - } - })(document.createTextNode(styles)); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? false : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - if (isFileProtocol) { - if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new(XMLHttpRequest); - } else { - try { - return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX."); - return null; - } - } -} - -function removeNode(node) { - return node && node.parentNode.removeChild(node); -} - -function log(str) { - if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } -} - -function error(e, href) { - var id = 'less-error-message:' + extractId(href); - - var template = ['
    ', - '
  • {0}
    • ', - '
  • {current}
    • ', - '
  • {2}
    • ', - '
'].join('\n'); - - var elem = document.createElement('div'), timer, content; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

' + (e.message || 'There is an error in your .less file') + - '

' + '

' + href + " "; - - if (e.extract) { - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

' + - template.replace(/\[(-?\d)\]/g, function (_, i) { - return (parseInt(e.line) + parseInt(i)) || ''; - }).replace(/\{(\d)\}/g, function (_, i) { - return e.extract[parseInt(i)] || ''; - }).replace(/\{current\}/, e.extract[1].slice(0, e.column) + '' + - e.extract[1].slice(e.column) + ''); - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #ee4444;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.ctx {', - 'color: #dd4444;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); - - if (less.env == 'development') { - timer = setInterval(function () { - if (document.body) { - if (document.getElementById(id)) { - document.body.replaceChild(elem, document.getElementById(id)); - } else { - document.body.insertBefore(elem, document.body.firstChild); - } - clearInterval(timer); - } - }, 10); - } -} - -})(window); diff --git a/awx/ui/static/lib/less.js/dist/less-1.1.6.min.js b/awx/ui/static/lib/less.js/dist/less-1.1.6.min.js deleted file mode 100644 index a30623b993..0000000000 --- a/awx/ui/static/lib/less.js/dist/less-1.1.6.min.js +++ /dev/null @@ -1,9 +0,0 @@ -// -// LESS - Leaner CSS v1.1.6 -// http://lesscss.org -// -// Copyright (c) 2009-2011, Alexis Sellier -// Licensed under the Apache 2.0 License. -// -(function(a,b){function c(b){return a.less[b.split("/")[1]]}function l(){var a=document.getElementsByTagName("style");for(var b=0;b0?d.firstChild.nodeValue!==a.nodeValue&&d.replaceChild(a,d.firstChild):d.appendChild(a)})(document.createTextNode(a));c&&g&&(t("saving "+e+" to cache."),g.setItem(e,a),g.setItem(e+":timestamp",c))}function q(a,b,c,e){function i(b,c,d){b.status>=200&&b.status<300?c(b.responseText,b.getResponseHeader("Last-Modified")):typeof d=="function"&&d(b.status,a)}var g=r(),h=f?!1:d.async;typeof g.overrideMimeType=="function"&&g.overrideMimeType("text/css"),g.open("GET",a,h),g.setRequestHeader("Accept",b||"text/x-less, text/css; q=0.9, */*; q=0.5"),g.send(null),f?g.status===0||g.status>=200&&g.status<300?c(g.responseText):e(g.status,a):h?g.onreadystatechange=function(){g.readyState==4&&i(g,c,e)}:i(g,c,e)}function r(){if(a.XMLHttpRequest)return new XMLHttpRequest;try{return new ActiveXObject("MSXML2.XMLHTTP.3.0")}catch(b){return t("browser doesn't support AJAX."),null}}function s(a){return a&&a.parentNode.removeChild(a)}function t(a){d.env=="development"&&typeof console!="undefined"&&console.log("less: "+a)}function u(a,b){var c="less-error-message:"+o(b),e=["
    ",'
  • {0}
    • ',"
  • {current}
    • ",'
  • {2}
    • ',"
"].join("\n"),f=document.createElement("div"),g,h;f.id=c,f.className="less-error-message",h="

"+(a.message||"There is an error in your .less file")+"

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a.toCSS(c)}).join("").trim()}).join(c.compress?",":g.length>3?",\n":", "),d.push(h,(c.compress?"{":" {\n ")+e.join(c.compress?"":"\n ")+(c.compress?"}":"\n}\n"))),d.push(f),d.join("")+(c.compress?"\n":"")},joinSelectors:function(a,b,c){for(var d=0;d0&&e.push(new a.Selector(g)),h.length>0&&f.push(new a.Selector(h));for(var l=0;l0&&(b.value=c[0]+(b.value.charAt(0)==="/"?b.value.slice(1):b.value)),this.value=b,this.paths=c)},b.URL.prototype={toCSS:function(){return"url("+(this.attrs?"data:"+this.attrs.mime+this.attrs.charset+this.attrs.base64+this.attrs.data:this.value.toCSS())+")"},eval:function(a){return this.attrs?this:new b.URL(this.value.eval(a),this.paths)}}}(c("../tree")),function(a){a.Value=function(a){this.value=a,this.is="value"},a.Value.prototype={eval:function(b){return this.value.length===1?this.value[0].eval(b):new a.Value(this.value.map(function(a){return a.eval(b)}))},toCSS:function(a){return this.value.map(function(b){return b.toCSS(a)}).join(a.compress?",":", ")}}}(c("../tree")),function(a){a.Variable=function(a,b){this.name=a,this.index=b},a.Variable.prototype={eval:function(b){var c,d,e=this.name;e.indexOf("@@")==0&&(e="@"+(new a.Variable(e.slice(1))).eval(b).value);if(c=a.find(b.frames,function(a){if(d=a.variable(e))return d.value.eval(b)}))return c;throw{message:"variable "+e+" is undefined",index:this.index}}}}(c("../tree")),c("./tree").find=function(a,b){for(var c=0,d;c1?"["+a.value.map(function(a){return a.toCSS(!1)}).join(", ")+"]":a.toCSS(!1)};var f=location.protocol==="file:"||location.protocol==="chrome:"||location.protocol==="chrome-extension:"||location.protocol==="resource:";d.env=d.env||(location.hostname=="127.0.0.1"||location.hostname=="0.0.0.0"||location.hostname=="localhost"||location.port.length>0||f?"development":"production"),d.async=!1,d.poll=d.poll||(f?1e3:1500),d.watch=function(){return this.watchMode=!0},d.unwatch=function(){return this.watchMode=!1},d.env==="development"?(d.optimization=0,/!watch/.test(location.hash)&&d.watch(),d.watchTimer=setInterval(function(){d.watchMode&&m(function(a,b,c){a&&p(a.toCSS(),b,c.lastModified)})},d.poll)):d.optimization=3;var g;try{g=typeof a.localStorage=="undefined"?null:a.localStorage}catch(h){g=null}var i=document.getElementsByTagName("link"),j=/^text\/(x-)?less$/;d.sheets=[];for(var k=0;k>> 0; - for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - if (typeof(window) === 'undefined') { less = {} } - else { less = window.less = {} } - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'node'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - mime: env && env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (e, root) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - that.files[path] = root; // Store the root - - if (e && !that.error) { that.error = e } - callback(e, root); - - if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, c, index, endIndex, k, mem; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - mem = i += length; - endIndex = i + chunks[j].length - length; - - while (i < endIndex) { - c = input.charCodeAt(i); - if (! (c === 32 || c === 10 || c === 9)) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - throw { index: i, type: type || 'Syntax', message: msg }; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - function getLocation(index) { - for (var n = index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - return { line: index ? (input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function LessError(e, env) { - var lines = input.split('\n'), - loc = getLocation(e.index), - line = loc.line, - col = loc.column; - - this.type = e.type || 'SyntaxError'; - this.message = e.message; - this.filename = e.filename || env.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call) + 1); - this.callExtract = lines[getLocation(e.call)]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - chunks = []; - input = str.replace(/\r\n/g, '\n'); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /[^"'`\{\}\/\(\)]+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - level = 0, - match, - chunk = chunks[0], - inParam, - inString; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = i; - - if (!inString && !inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - if (c === '{' && !inString && !inParam) { level ++; - chunk.push(c); - } else if (c === '}' && !inString && !inParam) { level --; - chunk.push(c); - chunks[++j] = chunk = []; - } else if (c === '(' && !inString && !inParam) { - chunk.push(c); - inParam = true; - } else if (c === ')' && !inString && inParam) { - chunk.push(c); - inParam = false; - } else { - if (c === '"' || c === "'" || c === '`') { - if (! inString) { - inString = c; - } else { - inString = inString === c ? false : inString; - } - } - chunk.push(c); - } - } - if (level > 0) { - throw { - type: 'Syntax', - message: "Missing closing `}`", - filename: env.filename - }; - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = []; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false }); - } catch (e) { - throw new(LessError)(e, env); - } - - if (parser.imports.error) { throw parser.imports.error } - - if (options.yuicompress && less.mode === 'node') { - return require('./cssmin').compressor.cssmin(css); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function () { callback(error, root) }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, args, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1].toLowerCase(); - - if (name === 'url') { return null } - else { i += name.length } - - if (name === 'alpha') { return $(this.alpha) } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - dataURI: function () { - var obj; - - if ($(/^data:/)) { - obj = {}; - obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; - obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; - obj.base64 = $(/^;\s*base64/) || ''; - obj.data = $(/^,\s*[^)]+/); - - if (obj.data) { return obj } - } - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|rem|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i), important = false; - - if (s !== '.' && s !== '#') { return } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - $('(') && (args = $(this.entities.arguments)) && $(')'); - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, important); - } - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { - name = match[1]; - - while (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - value = expect(this.expression, 'expected expression'); - params.push({ name: param.name, value: value }); - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - if (! $(',')) { break } - } - expect(')'); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || - $('*') || $(this.attribute) || $(/^\([^)@]+\)/); - - if (! e) { - $('(') && (v = $(this.entities.variable)) && $(')') && (e = new(tree.Paren)(v)); - } - - if (e) { return new(tree.Element)(c, e, i) } - - if (c.value && c.value.charAt(0) === '&') { - return new(tree.Element)(c, null, i); - } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~') { - i++; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(c); - } else if (c === '&') { - match = '&'; - i++; - if(input.charAt(i) === ' ') { - match = '& '; - } - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(match); - } else if (c === ':' && input.charAt(i + 1) === ':') { - i += 2; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)('::'); - } else if (input.charAt(i - 1) === ' ') { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match; - save(); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - return new(tree.Ruleset)(selectors, rules); - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features; - if ($(/^@import\s+/) && - (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - return new(tree.Import)(path, imports, features); - } - } - }, - - mediaFeature: function () { - var nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.entity); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var f, features = []; - while (f = $(this.mediaFeature)) { - features.push(f); - if (! $(',')) { break } - } - return features.length > 0 ? features : null; - }, - - media: function () { - var features; - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - return new(tree.Directive)('@media', rules, features); - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, types, e, nodes; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } else if (name = $(/^@page|@keyframes/) || $(/^@(?:-webkit-|-moz-|-o-|-ms-)[a-z0-9-]+/)) { - types = ($(/^[^{]+/) || '').trim(); - if (rules = $(this.block)) { - return new(tree.Directive)(name + " " + types, rules); - } - } else if (name = $(/^@[-a-z]+/)) { - if (name === '@font-face') { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (path.charAt(0) !== '/' && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n) { - return this._math('round', n); - }, - ceil: function (n) { - return this._math('ceil', n); - }, - floor: function (n) { - return this._math('floor', n); - }, - _math: function (fn, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math[fn](number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math[fn](n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False; - }, - ispercentage: function (n) { - return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False; - }, - isem: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index) { - this.name = name; - this.args = args; - this.index = index; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype.eval = function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - }, - - // TODO: Perform unit conversion before comparing - compare: function (other) { - if (other instanceof tree.Dimension) { - if (other.value > this.value) { - return -1; - } else if (other.value < this.value) { - return 1; - } else { - return 0; - } - } else { - return -1; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value, features) { - this.name = name; - this.features = features && new(tree.Value)(features); - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.ruleset) { - this.ruleset.root = true; - return this.name + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - this.features = this.features && this.features.eval(env); - env.frames.unshift(this); - this.ruleset = this.ruleset && this.ruleset.eval(env); - env.frames.shift(); - return this; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype.eval = function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); -}; -tree.Element.prototype.toCSS = function (env) { - return this.combinator.toCSS(env || {}) + (this.value.toCSS ? this.value.toCSS(env) : this.value); -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else if (value === '& ') { - this.value = '& '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - '&' : '', - '& ' : ' ', - ':' : ' :', - '::': '::', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports, features) { - var that = this; - - this._path = path; - this.features = features && new(tree.Value)(features); - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css(\?.*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (e, root) { - that.root = root; - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - return "@import " + this._path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return this.features ? new(tree.Directive)('@media', ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.important = important; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, args, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(args, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments, this.important).rules); - match = true; - } catch (e) { - throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; - } - } - } - if (match) { - return rules; - } else { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index }; - } - } - } - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index }; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - evalParams: function (env, args) { - var frame = new(tree.Ruleset)(null, []); - - for (var i = 0, val; i < this.params.length; i++) { - if (this.params[i].name) { - if (val = (args && args[i]) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - return frame; - }, - eval: function (env, args, important) { - var frame = this.evalParams(env, args), context, _arguments = [], rules; - - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push(args[i] || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.rules.map(function (r) { - return new(tree.Rule)(r.name, r.value, '!important', r.index); - }) : this.rules.slice(0); - - return new(tree.Ruleset)(null, rules).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (argsLength < this.required) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - if (this.condition && !this.condition.eval({ - frames: [this.evalParams(env, args)].concat(env.frames) - })) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - toCSS: function (env) { - return '(' + this.value.toCSS(env) + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return ('value' in v) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, - this.value.eval(context), - this.important, - this.index, this.inline); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0)); - - ruleset.root = this.root; - ruleset.allowImports = this.allowImports; - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - rule; - - if (! this.root) { - if (context.length === 0) { - paths = this.selectors.map(function (s) { return [s] }); - } else { - this.joinSelectors(paths, context, this.selectors); - } - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); - css.push(selector, - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - var before = [], after = [], beforeElements = [], - afterElements = [], hasParentSelector = false, el; - - for (var i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.combinator.value.charAt(0) === '&') { - hasParentSelector = true; - } - if (hasParentSelector) afterElements.push(el); - else beforeElements.push(el); - } - - if (! hasParentSelector) { - afterElements = beforeElements; - beforeElements = []; - } - - if (beforeElements.length > 0) { - before.push(new(tree.Selector)(beforeElements)); - } - - if (afterElements.length > 0) { - after.push(new(tree.Selector)(afterElements)); - } - - for (var c = 0; c < context.length; c++) { - paths.push(before.concat(context[c]).concat(after)); - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; - if (this.elements[0].combinator.value === "") { - this.elements[0].combinator.value = ' '; - } -}; -tree.Selector.prototype.match = function (other) { - var len = this.elements.length, - olen = other.elements.length, - max = Math.min(len, olen); - - if (len < olen) { - return false; - } else { - for (var i = 0; i < max; i++) { - if (this.elements[i].value !== other.elements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.eval = function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - })); -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - return this._css = this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, paths) { - if (val.data) { - this.attrs = val; - } else { - // Add the base path if the URL is relative and we are in the browser - if (typeof(window) !== 'undefined' && !/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(val.value) && paths.length > 0) { - val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - this.value = val; - this.paths = paths; - } -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data - : this.value.toCSS()) + ")"; - }, - eval: function (ctx) { - return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index) { this.name = name, this.index = index }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { message: "variable " + name + " is undefined", - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -// -// browser.js - client-side engine -// - -var isFileProtocol = (location.protocol === 'file:' || - location.protocol === 'chrome:' || - location.protocol === 'chrome-extension:' || - location.protocol === 'resource:'); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 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- for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - if (typeof(window) === 'undefined') { less = {} } - else { less = window.less = {} } - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'node'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - contents: {}, // Holds the imported file contents - mime: env && env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (e, root, contents) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - that.files[path] = root; // Store the root - that.contents[path] = contents; - - if (e && !that.error) { that.error = e } - callback(e, root); - - if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, c, index, endIndex, k, mem; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - mem = i += length; - endIndex = i + chunks[j].length - length; - - while (i < endIndex) { - c = input.charCodeAt(i); - if (! (c === 32 || c === 10 || c === 9)) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - throw { index: i, type: type || 'Syntax', message: msg }; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - function getInput(e, env) { - if (e.filename && env.filename && (e.filename !== env.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, input) { - for (var n = index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input) + 1); - this.callExtract = lines[getLocation(e.call, input)]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - chunks = []; - input = str.replace(/\r\n/g, '\n'); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /[^"'`\{\}\/\(\)]+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - level = 0, - match, - chunk = chunks[0], - inParam, - inString; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = i; - - if (!inString && !inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - if (c === '{' && !inString && !inParam) { level ++; - chunk.push(c); - } else if (c === '}' && !inString && !inParam) { level --; - chunk.push(c); - chunks[++j] = chunk = []; - } else if (c === '(' && !inString && !inParam) { - chunk.push(c); - inParam = true; - } else if (c === ')' && !inString && inParam) { - chunk.push(c); - inParam = false; - } else { - if (c === '"' || c === "'" || c === '`') { - if (! inString) { - inString = c; - } else { - inString = inString === c ? false : inString; - } - } - chunk.push(c); - } - } - if (level > 0) { - throw { - type: 'Syntax', - message: "Missing closing `}`", - filename: env.filename - }; - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = [], importError; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false }); - } catch (e) { - throw new(LessError)(e, env); - } - - if ((importError = parser.imports.error)) { // Check if there was an error during importing - if (importError instanceof LessError) throw importError; - else throw new(LessError)(importError, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('./cssmin').compressor.cssmin(css); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function () { callback(error, root) }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, args, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1].toLowerCase(); - - if (name === 'url') { return null } - else { i += name.length } - - if (name === 'alpha') { return $(this.alpha) } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index, env.filename) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - dataURI: function () { - var obj; - - if ($(/^data:/)) { - obj = {}; - obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; - obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; - obj.base64 = $(/^;\s*base64/) || ''; - obj.data = $(/^,\s*[^)]+/); - - if (obj.data) { return obj } - } - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.filename); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|rem|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i), important = false; - - if (s !== '.' && s !== '#') { return } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - $('(') && (args = $(this.entities.arguments)) && $(')'); - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.filename, important); - } - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { - name = match[1]; - - while (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - value = expect(this.expression, 'expected expression'); - params.push({ name: param.name, value: value }); - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - if (! $(',')) { break } - } - expect(')'); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || - $('*') || $(this.attribute) || $(/^\([^)@]+\)/); - - if (! e) { - $('(') && (v = $(this.entities.variable)) && $(')') && (e = new(tree.Paren)(v)); - } - - if (e) { return new(tree.Element)(c, e, i) } - - if (c.value && c.value.charAt(0) === '&') { - return new(tree.Element)(c, null, i); - } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~') { - i++; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(c); - } else if (c === '&') { - match = '&'; - i++; - if(input.charAt(i) === ' ') { - match = '& '; - } - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(match); - } else if (c === ':' && input.charAt(i + 1) === ':') { - i += 2; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)('::'); - } else if (input.charAt(i - 1) === ' ') { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match; - save(); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - return new(tree.Ruleset)(selectors, rules); - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - if ($(/^@import\s+/) && - (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - return new(tree.Import)(path, imports, features, index); - } - } - }, - - mediaFeature: function () { - var nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.entity); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var f, features = []; - while (f = $(this.mediaFeature)) { - features.push(f); - if (! $(',')) { break } - } - return features.length > 0 ? features : null; - }, - - media: function () { - var features; - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - return new(tree.Directive)('@media', rules, features); - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, types, e, nodes; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } else if (name = $(/^@page|@keyframes/) || $(/^@(?:-webkit-|-moz-|-o-|-ms-)[a-z0-9-]+/)) { - types = ($(/^[^{]+/) || '').trim(); - if (rules = $(this.block)) { - return new(tree.Directive)(name + " " + types, rules); - } - } else if (name = $(/^@[-a-z]+/)) { - if (name === '@font-face') { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (path.charAt(0) !== '/' && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n) { - return this._math('round', n); - }, - ceil: function (n) { - return this._math('ceil', n); - }, - floor: function (n) { - return this._math('floor', n); - }, - _math: function (fn, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math[fn](number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math[fn](n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False; - }, - ispercentage: function (n) { - return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False; - }, - isem: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, filename) { - this.name = name; - this.args = args; - this.index = index; - this.filename = filename; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.filename }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype.eval = function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - }, - - // TODO: Perform unit conversion before comparing - compare: function (other) { - if (other instanceof tree.Dimension) { - if (other.value > this.value) { - return -1; - } else if (other.value < this.value) { - return 1; - } else { - return 0; - } - } else { - return -1; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value, features) { - this.name = name; - this.features = features && new(tree.Value)(features); - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.ruleset) { - this.ruleset.root = true; - return this.name + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - this.features = this.features && this.features.eval(env); - env.frames.unshift(this); - this.ruleset = this.ruleset && this.ruleset.eval(env); - env.frames.shift(); - return this; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype.eval = function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); -}; -tree.Element.prototype.toCSS = function (env) { - return this.combinator.toCSS(env || {}) + (this.value.toCSS ? this.value.toCSS(env) : this.value); -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else if (value === '& ') { - this.value = '& '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - '&' : '', - '& ' : ' ', - ':' : ' :', - '::': '::', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports, features, index) { - var that = this; - - this.index = index; - this._path = path; - this.features = features && new(tree.Value)(features); - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css(\?.*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (e, root) { - if (e) { e.index = index } - that.root = root || new(tree.Ruleset)([], []); - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - return "@import " + this._path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return this.features ? new(tree.Directive)('@media', ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, filename, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.filename = filename; - this.important = important; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, args, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(args, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments, this.important).rules); - match = true; - } catch (e) { - throw { message: e.message, index: e.index, filename: this.filename, stack: e.stack, call: this.index }; - } - } - } - if (match) { - return rules; - } else { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index, filename: this.filename }; - } - } - } - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.filename }; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - evalParams: function (env, args) { - var frame = new(tree.Ruleset)(null, []); - - for (var i = 0, val; i < this.params.length; i++) { - if (this.params[i].name) { - if (val = (args && args[i]) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - return frame; - }, - eval: function (env, args, important) { - var frame = this.evalParams(env, args), context, _arguments = [], rules; - - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push(args[i] || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.rules.map(function (r) { - return new(tree.Rule)(r.name, r.value, '!important', r.index); - }) : this.rules.slice(0); - - return new(tree.Ruleset)(null, rules).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (argsLength < this.required) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - if (this.condition && !this.condition.eval({ - frames: [this.evalParams(env, args)].concat(env.frames) - })) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - toCSS: function (env) { - return '(' + this.value.toCSS(env) + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return ('value' in v) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, - this.value.eval(context), - this.important, - this.index, this.inline); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0)); - - ruleset.root = this.root; - ruleset.allowImports = this.allowImports; - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - rule; - - if (! this.root) { - if (context.length === 0) { - paths = this.selectors.map(function (s) { return [s] }); - } else { - this.joinSelectors(paths, context, this.selectors); - } - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); - css.push(selector, - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - var before = [], after = [], beforeElements = [], - afterElements = [], hasParentSelector = false, el; - - for (var i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.combinator.value.charAt(0) === '&') { - hasParentSelector = true; - } - if (hasParentSelector) afterElements.push(el); - else beforeElements.push(el); - } - - if (! hasParentSelector) { - afterElements = beforeElements; - beforeElements = []; - } - - if (beforeElements.length > 0) { - before.push(new(tree.Selector)(beforeElements)); - } - - if (afterElements.length > 0) { - after.push(new(tree.Selector)(afterElements)); - } - - for (var c = 0; c < context.length; c++) { - paths.push(before.concat(context[c]).concat(after)); - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; - if (this.elements[0].combinator.value === "") { - this.elements[0].combinator.value = ' '; - } -}; -tree.Selector.prototype.match = function (other) { - var len = this.elements.length, - olen = other.elements.length, - max = Math.min(len, olen); - - if (len < olen) { - return false; - } else { - for (var i = 0; i < max; i++) { - if (this.elements[i].value !== other.elements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.eval = function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - })); -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - return this._css = this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, paths) { - if (val.data) { - this.attrs = val; - } else { - // Add the base path if the URL is relative and we are in the browser - if (typeof(window) !== 'undefined' && !/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(val.value) && paths.length > 0) { - val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - this.value = val; - this.paths = paths; - } -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data - : this.value.toCSS()) + ")"; - }, - eval: function (ctx) { - return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.file, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -// -// browser.js - client-side engine -// - -var isFileProtocol = (location.protocol === 'file:' || - location.protocol === 'chrome:' || - location.protocol === 'chrome-extension:' || - location.protocol === 'resource:'); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -// -// Watch mode -// -less.watch = function () { return this.watchMode = true }; -less.unwatch = function () { return this.watchMode = false }; - -if (less.env === 'development') { - less.optimization = 0; - - if (/!watch/.test(location.hash)) { - less.watch(); - } - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (e, root, _, sheet, env) { - if (root) { - createCSS(root.toCSS(), sheet, env.lastModified); - } - }); - } - }, less.poll); -} else { - less.optimization = 3; -} - -var cache; - -try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; -} catch (_) { - cache = null; -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (e, root, _, sheet, env) { - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) { - var css = tree.toCSS(); - var style = styles[i]; - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - var url = window.location.href.replace(/[#?].*$/, ''); - var href = sheet.href.replace(/\?.*$/, ''); - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - - // Stylesheets in IE don't always return the full path - if (! /^(https?|file):/.test(href)) { - if (href.charAt(0) == "/") { - href = window.location.protocol + "//" + window.location.host + href; - } else { - href = url.slice(0, url.lastIndexOf('/') + 1) + href; - } - } - var filename = href.match(/([^\/]+)$/)[1]; - - xhr(sheet.href, sheet.type, function (data, lastModified) { - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, sheet, { local: true, remaining: remaining }); - } else { - // Use remote copy (re-parse) - try { - new(less.Parser)({ - optimization: less.optimization, - paths: [href.replace(/[\w\.-]+$/, '')], - mime: sheet.type, - filename: filename - }).parse(data, function (e, root) { - if (e) { return error(e, href) } - try { - callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining }); - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } catch (e) { - error(e, href); - } - }); - } catch (e) { - error(e, href); - } - } - }, function (status, url) { - throw new(Error)("Couldn't load " + url + " (" + status + ")"); - }); -} - -function extractId(href) { - return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\?.*$/, '' ) // Remove query - .replace(/\.[^\.\/]+$/, '' ) // Remove file extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - var css; - - // Strip the query-string - var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If the stylesheet doesn't exist, create a new node - if ((css = document.getElementById(id)) === null) { - css = document.createElement('style'); - css.type = 'text/css'; - css.media = sheet.media || 'screen'; - css.id = id; - document.getElementsByTagName('head')[0].appendChild(css); - } - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - (function (node) { - if (css.childNodes.length > 0) { - if (css.firstChild.nodeValue !== node.nodeValue) { - css.replaceChild(node, css.firstChild); - } - } else { - css.appendChild(node); - } - })(document.createTextNode(styles)); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? false : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - if (isFileProtocol) { - if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new(XMLHttpRequest); - } else { - try { - return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX."); - return null; - } - } -} - -function removeNode(node) { - return node && node.parentNode.removeChild(node); -} - -function log(str) { - if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } -} - -function error(e, href) { - var id = 'less-error-message:' + extractId(href); - var template = '
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- for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - if (typeof(window) === 'undefined') { less = {} } - else { less = window.less = {} } - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'node'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - contents: {}, // Holds the imported file contents - mime: env && env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (e, root, contents) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - that.files[path] = root; // Store the root - that.contents[path] = contents; - - if (e && !that.error) { that.error = e } - callback(e, root); - - if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, c, index, endIndex, k, mem; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - mem = i += length; - endIndex = i + chunks[j].length - length; - - while (i < endIndex) { - c = input.charCodeAt(i); - if (! (c === 32 || c === 10 || c === 9)) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - throw { index: i, type: type || 'Syntax', message: msg }; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - function basename(pathname) { - if (less.mode === 'node') { - return require('path').basename(pathname); - } else { - return pathname.match(/[^\/]+$/)[0]; - } - } - - function getInput(e, env) { - if (e.filename && env.filename && (e.filename !== env.filename)) { - return parser.imports.contents[basename(e.filename)]; - } else { - return input; - } - } - - function getLocation(index, input) { - for (var n = index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input) + 1); - this.callExtract = lines[getLocation(e.call, input)]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /[^"'`\{\}\/\(\)\\]+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`\\\r\n]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - switch (c) { - case '{': if (! inParam) { level ++; chunk.push(c); break } - case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } - case '(': if (! inParam) { inParam = true; chunk.push(c); break } - case ')': if ( inParam) { inParam = false; chunk.push(c); break } - default: chunk.push(c); - } - } - if (level > 0) { - error = new(LessError)({ - index: i, - type: 'Parse', - message: "missing closing `}`", - filename: env.filename - }, env); - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - if (error) { - return callback(error); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = [], importError; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false }); - } catch (e) { - throw new(LessError)(e, env); - } - - if ((importError = parser.imports.error)) { // Check if there was an error during importing - if (importError instanceof LessError) throw importError; - else throw new(LessError)(importError, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('./cssmin').compressor.cssmin(css); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function () { callback(error, root) }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, args, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1].toLowerCase(); - - if (name === 'url') { return null } - else { i += name.length } - - if (name === 'alpha') { return $(this.alpha) } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index, env.filename) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - dataURI: function () { - var obj; - - if ($(/^data:/)) { - obj = {}; - obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; - obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; - obj.base64 = $(/^;\s*base64/) || ''; - obj.data = $(/^,\s*[^)]+/); - - if (obj.data) { return obj } - } - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.filename); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|rem|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i), important = false; - - if (s !== '.' && s !== '#') { return } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - $('(') && (args = $(this.entities.arguments)) && $(')'); - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.filename, important); - } - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { - name = match[1]; - - while (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - value = expect(this.expression, 'expected expression'); - params.push({ name: param.name, value: value }); - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - if (! $(',')) { break } - } - expect(')'); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || - $('*') || $(this.attribute) || $(/^\([^)@]+\)/); - - if (! e) { - $('(') && (v = $(this.entities.variable)) && $(')') && (e = new(tree.Paren)(v)); - } - - if (e) { return new(tree.Element)(c, e, i) } - - if (c.value && c.value.charAt(0) === '&') { - return new(tree.Element)(c, null, i); - } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~') { - i++; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(c); - } else if (c === '&') { - match = '&'; - i++; - if(input.charAt(i) === ' ') { - match = '& '; - } - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(match); - } else if (c === ':' && input.charAt(i + 1) === ':') { - i += 2; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)('::'); - } else if (input.charAt(i - 1) === ' ') { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match; - save(); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - return new(tree.Ruleset)(selectors, rules); - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - if ($(/^@import\s+/) && - (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - return new(tree.Import)(path, imports, features, index); - } - } - }, - - mediaFeature: function () { - var nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.entity); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var f, features = []; - while (f = $(this.mediaFeature)) { - features.push(f); - if (! $(',')) { break } - } - return features.length > 0 ? features : null; - }, - - media: function () { - var features; - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - return new(tree.Directive)('@media', rules, features); - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, types, e, nodes; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } else if (name = $(/^@page|@keyframes/) || $(/^@(?:-webkit-|-moz-|-o-|-ms-)[a-z0-9-]+/)) { - types = ($(/^[^{]+/) || '').trim(); - if (rules = $(this.block)) { - return new(tree.Directive)(name + " " + types, rules); - } - } else if (name = $(/^@[-a-z]+/)) { - if (name === '@font-face') { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (!/^([a-z]+:)?\//.test(path) && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ href: path, title: path, type: env.mime }, function (e) { - if (e && typeof(env.errback) === "function") { - env.errback.call(null, path, paths, callback, env); - } else { - callback.apply(null, arguments); - } - }, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n) { - return this._math('round', n); - }, - ceil: function (n) { - return this._math('ceil', n); - }, - floor: function (n) { - return this._math('floor', n); - }, - _math: function (fn, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math[fn](number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math[fn](n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False; - }, - ispercentage: function (n) { - return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False; - }, - isem: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, filename) { - this.name = name; - this.args = args; - this.index = index; - this.filename = filename; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.filename }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype.eval = function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - }, - - // TODO: Perform unit conversion before comparing - compare: function (other) { - if (other instanceof tree.Dimension) { - if (other.value > this.value) { - return -1; - } else if (other.value < this.value) { - return 1; - } else { - return 0; - } - } else { - return -1; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value, features) { - this.name = name; - this.features = features && new(tree.Value)(features); - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.ruleset) { - this.ruleset.root = true; - return this.name + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - this.features = this.features && this.features.eval(env); - env.frames.unshift(this); - this.ruleset = this.ruleset && this.ruleset.eval(env); - env.frames.shift(); - return this; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype.eval = function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); -}; -tree.Element.prototype.toCSS = function (env) { - return this.combinator.toCSS(env || {}) + (this.value.toCSS ? this.value.toCSS(env) : this.value); -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else if (value === '& ') { - this.value = '& '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - '&' : '', - '& ' : ' ', - ':' : ' :', - '::': '::', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports, features, index) { - var that = this; - - this.index = index; - this._path = path; - this.features = features && new(tree.Value)(features); - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css(\?.*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (e, root) { - if (e) { e.index = index } - that.root = root || new(tree.Ruleset)([], []); - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - return "@import " + this._path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return this.features ? new(tree.Directive)('@media', ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, filename, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.filename = filename; - this.important = important; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, args, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(args, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments, this.important).rules); - match = true; - } catch (e) { - throw { message: e.message, index: e.index, filename: this.filename, stack: e.stack, call: this.index }; - } - } - } - if (match) { - return rules; - } else { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index, filename: this.filename }; - } - } - } - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.filename }; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - evalParams: function (env, args) { - var frame = new(tree.Ruleset)(null, []); - - for (var i = 0, val; i < this.params.length; i++) { - if (this.params[i].name) { - if (val = (args && args[i]) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - return frame; - }, - eval: function (env, args, important) { - var frame = this.evalParams(env, args), context, _arguments = [], rules; - - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push(args[i] || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.rules.map(function (r) { - return new(tree.Rule)(r.name, r.value, '!important', r.index); - }) : this.rules.slice(0); - - return new(tree.Ruleset)(null, rules).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (argsLength < this.required) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - if (this.condition && !this.condition.eval({ - frames: [this.evalParams(env, args)].concat(env.frames) - })) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - toCSS: function (env) { - return '(' + this.value.toCSS(env) + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return ('value' in v) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, - this.value.eval(context), - this.important, - this.index, this.inline); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0)); - - ruleset.root = this.root; - ruleset.allowImports = this.allowImports; - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - rule; - - if (! this.root) { - if (context.length === 0) { - paths = this.selectors.map(function (s) { return [s] }); - } else { - this.joinSelectors(paths, context, this.selectors); - } - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join( env.compress ? ',' : ',\n'); - - css.push(selector, - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - var before = [], after = [], beforeElements = [], - afterElements = [], hasParentSelector = false, el; - - for (var i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.combinator.value.charAt(0) === '&') { - hasParentSelector = true; - } - if (hasParentSelector) afterElements.push(el); - else beforeElements.push(el); - } - - if (! hasParentSelector) { - afterElements = beforeElements; - beforeElements = []; - } - - if (beforeElements.length > 0) { - before.push(new(tree.Selector)(beforeElements)); - } - - if (afterElements.length > 0) { - after.push(new(tree.Selector)(afterElements)); - } - - for (var c = 0; c < context.length; c++) { - paths.push(before.concat(context[c]).concat(after)); - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; - if (this.elements[0].combinator.value === "") { - this.elements[0].combinator.value = ' '; - } -}; -tree.Selector.prototype.match = function (other) { - var len = this.elements.length, - olen = other.elements.length, - max = Math.min(len, olen); - - if (len < olen) { - return false; - } else { - for (var i = 0; i < max; i++) { - if (this.elements[i].value !== other.elements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.eval = function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - })); -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - return this._css = this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, paths) { - if (val.data) { - this.attrs = val; - } else { - // Add the base path if the URL is relative and we are in the browser - if (typeof(window) !== 'undefined' && !/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(val.value) && paths.length > 0) { - val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - this.value = val; - this.paths = paths; - } -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data - : this.value.toCSS()) + ")"; - }, - eval: function (ctx) { - return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.file, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -// -// browser.js - client-side engine -// - -var isFileProtocol = (location.protocol === 'file:' || - location.protocol === 'chrome:' || - location.protocol === 'chrome-extension:' || - location.protocol === 'resource:'); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -// -// Watch mode -// -less.watch = function () { return this.watchMode = true }; -less.unwatch = function () { return this.watchMode = false }; - -if (less.env === 'development') { - less.optimization = 0; - - if (/!watch/.test(location.hash)) { - less.watch(); - } - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (e, root, _, sheet, env) { - if (root) { - createCSS(root.toCSS(), sheet, env.lastModified); - } - }); - } - }, less.poll); -} else { - less.optimization = 3; -} - -var cache; - -try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; -} catch (_) { - cache = null; -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (e, root, _, sheet, env) { - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) { - var css = tree.toCSS(); - var style = styles[i]; - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - var url = window.location.href.replace(/[#?].*$/, ''); - var href = sheet.href.replace(/\?.*$/, ''); - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - - // Stylesheets in IE don't always return the full path - if (! /^(https?|file):/.test(href)) { - if (href.charAt(0) == "/") { - href = window.location.protocol + "//" + window.location.host + href; - } else { - href = url.slice(0, url.lastIndexOf('/') + 1) + href; - } - } - var filename = href.match(/([^\/]+)$/)[1]; - - xhr(sheet.href, sheet.type, function (data, lastModified) { - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, null, data, sheet, { local: true, remaining: remaining }); - } else { - // Use remote copy (re-parse) - try { - new(less.Parser)({ - optimization: less.optimization, - paths: [href.replace(/[\w\.-]+$/, '')], - mime: sheet.type, - filename: filename - }).parse(data, function (e, root) { - if (e) { return error(e, href) } - try { - callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining }); - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } catch (e) { - error(e, href); - } - }); - } catch (e) { - error(e, href); - } - } - }, function (status, url) { - throw new(Error)("Couldn't load " + url + " (" + status + ")"); - }); -} - -function extractId(href) { - return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\?.*$/, '' ) // Remove query - .replace(/\.[^\.\/]+$/, '' ) // Remove file extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - var css; - - // Strip the query-string - var href = sheet.href ? 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- for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - if (typeof(window) === 'undefined') { less = {} } - else { less = window.less = {} } - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'node'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - contents: {}, // Holds the imported file contents - mime: env && env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (e, root, contents) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - that.files[path] = root; // Store the root - that.contents[path] = contents; - - if (e && !that.error) { that.error = e } - callback(e, root); - - if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, c, index, endIndex, k, mem; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - mem = i += length; - endIndex = i + chunks[j].length - length; - - while (i < endIndex) { - c = input.charCodeAt(i); - if (! (c === 32 || c === 10 || c === 9)) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - throw { index: i, type: type || 'Syntax', message: msg }; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - function basename(pathname) { - if (less.mode === 'node') { - return require('path').basename(pathname); - } else { - return pathname.match(/[^\/]+$/)[0]; - } - } - - function getInput(e, env) { - if (e.filename && env.filename && (e.filename !== env.filename)) { - return parser.imports.contents[basename(e.filename)]; - } else { - return input; - } - } - - function getLocation(index, input) { - for (var n = index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input).line + 1); - this.callExtract = lines[getLocation(e.call, input).line]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /[^"'`\{\}\/\(\)\\]+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`\\\r\n]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - switch (c) { - case '{': if (! inParam) { level ++; chunk.push(c); break } - case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } - case '(': if (! inParam) { inParam = true; chunk.push(c); break } - case ')': if ( inParam) { inParam = false; chunk.push(c); break } - default: chunk.push(c); - } - } - if (level > 0) { - error = new(LessError)({ - index: i, - type: 'Parse', - message: "missing closing `}`", - filename: env.filename - }, env); - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - if (error) { - return callback(error); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = [], importError; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false }); - } catch (e) { - throw new(LessError)(e, env); - } - - if ((importError = parser.imports.error)) { // Check if there was an error during importing - if (importError instanceof LessError) throw importError; - else throw new(LessError)(importError, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('./cssmin').compressor.cssmin(css); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function () { callback(error, root) }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, args, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1].toLowerCase(); - - if (name === 'url') { return null } - else { i += name.length } - - if (name === 'alpha') { return $(this.alpha) } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index, env.filename) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - dataURI: function () { - var obj; - - if ($(/^data:/)) { - obj = {}; - obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; - obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; - obj.base64 = $(/^;\s*base64/) || ''; - obj.data = $(/^,\s*[^)]+/); - - if (obj.data) { return obj } - } - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.filename); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|rem|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i), important = false; - - if (s !== '.' && s !== '#') { return } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - $('(') && (args = $(this.entities.arguments)) && $(')'); - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args || [], index, env.filename, important); - } - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { - name = match[1]; - - do { - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - variadic = true; - break; - } else if (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - value = expect(this.expression, 'expected expression'); - params.push({ name: param.name, value: value }); - } else if ($(/^\.{3}/)) { - params.push({ name: param.name, variadic: true }); - variadic = true; - break; - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - } else { - break; - } - } while ($(',')) - - expect(')'); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || - $('*') || $(this.attribute) || $(/^\([^)@]+\)/); - - if (! e) { - $('(') && (v = $(this.entities.variable)) && $(')') && (e = new(tree.Paren)(v)); - } - - if (e) { return new(tree.Element)(c, e, i) } - - if (c.value && c.value.charAt(0) === '&') { - return new(tree.Element)(c, null, i); - } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~') { - i++; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(c); - } else if (c === '&') { - match = '&'; - i++; - if(input.charAt(i) === ' ') { - match = '& '; - } - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(match); - } else if (input.charAt(i - 1) === ' ') { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - if ($('(')) { - sel = $(this.entity); - expect(')'); - return new(tree.Selector)([new(tree.Element)('', sel, i)]); - } - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match; - save(); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - return new(tree.Ruleset)(selectors, rules, env.strictImports); - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - if ($(/^@import\s+/) && - (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - return new(tree.Import)(path, imports, features, index); - } - } - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.entity); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules; - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - return new(tree.Media)(rules, features); - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, types, e, nodes; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } else if (name = $(/^@page|@keyframes/) || $(/^@(?:-webkit-|-moz-|-o-|-ms-)[a-z0-9-]+/)) { - types = ($(/^[^{]+/) || '').trim(); - if (rules = $(this.block)) { - return new(tree.Directive)(name + " " + types, rules); - } - } else if (name = $(/^@[-a-z]+/)) { - if (name === '@font-face') { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (!/^([a-z]+:)?\//.test(path) && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ href: path, title: path, type: env.mime }, function (e) { - if (e && typeof(env.errback) === "function") { - env.errback.call(null, path, paths, callback, env); - } else { - callback.apply(null, arguments); - } - }, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n) { - return this._math('round', n); - }, - ceil: function (n) { - return this._math('ceil', n); - }, - floor: function (n) { - return this._math('floor', n); - }, - _math: function (fn, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math[fn](number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math[fn](n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False; - }, - ispercentage: function (n) { - return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False; - }, - isem: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, filename) { - this.name = name; - this.args = args; - this.index = index; - this.filename = filename; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.filename }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype.eval = function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - }, - - // TODO: Perform unit conversion before comparing - compare: function (other) { - if (other instanceof tree.Dimension) { - if (other.value > this.value) { - return -1; - } else if (other.value < this.value) { - return 1; - } else { - return 0; - } - } else { - return -1; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value, features) { - this.name = name; - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - env.frames.unshift(this); - this.ruleset = this.ruleset && this.ruleset.eval(env); - env.frames.shift(); - return this; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype.eval = function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); -}; -tree.Element.prototype.toCSS = function (env) { - return this.combinator.toCSS(env || {}) + (this.value.toCSS ? this.value.toCSS(env) : this.value); -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else if (value === '& ') { - this.value = '& '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - '&' : '', - '& ' : ' ', - ':' : ' :', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports, features, index) { - var that = this; - - this.index = index; - this._path = path; - this.features = features && new(tree.Value)(features); - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css(\?.*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (e, root) { - if (e) { e.index = index } - that.root = root || new(tree.Ruleset)([], []); - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - return "@import " + this._path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.Media = function (value, features) { - var el = new(tree.Element)('&', null, 0), - selectors = [new(tree.Selector)([el])]; - - this.features = new(tree.Value)(features); - this.ruleset = new(tree.Ruleset)(selectors, value); - this.ruleset.allowImports = true; -}; -tree.Media.prototype = { - toCSS: function (ctx, env) { - var features = this.features.toCSS(env); - - this.ruleset.root = (ctx.length === 0 || ctx[0].multiMedia); - return '@media ' + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - }, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var blockIndex = env.mediaBlocks.length; - env.mediaPath.push(this); - env.mediaBlocks.push(this); - - var media = new(tree.Media)([], []); - media.features = this.features.eval(env); - - env.frames.unshift(this.ruleset); - media.ruleset = this.ruleset.eval(env); - env.frames.shift(); - - env.mediaBlocks[blockIndex] = media; - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env) - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var el = new(tree.Element)('&', null, 0); - var selectors = [new(tree.Selector)([el])]; - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, filename, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.filename = filename; - this.important = important; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, args, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(args, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments, this.important).rules); - match = true; - } catch (e) { - throw { message: e.message, index: this.index, filename: this.filename, stack: e.stack }; - } - } - } - if (match) { - return rules; - } else { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index, filename: this.filename }; - } - } - } - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.filename }; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - evalParams: function (env, args) { - var frame = new(tree.Ruleset)(null, []), varargs; - - for (var i = 0, val, name; i < this.params.length; i++) { - if (name = this.params[i].name) { - if (this.params[i].variadic && args) { - varargs = []; - for (var j = i; j < args.length; j++) { - varargs.push(args[j].eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else if (val = (args && args[i]) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(name, val.eval(env))); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - return frame; - }, - eval: function (env, args, important) { - var frame = this.evalParams(env, args), context, _arguments = [], rules, start; - - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push(args[i] || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.rules.map(function (r) { - return new(tree.Rule)(r.name, r.value, '!important', r.index); - }) : this.rules.slice(0); - - return new(tree.Ruleset)(null, rules).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (! this.variadic) { - if (argsLength < this.required) { return false } - if (argsLength > this.params.length) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - } - - if (this.condition && !this.condition.eval({ - frames: [this.evalParams(env, args)].concat(env.frames) - })) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - toCSS: function (env) { - return '(' + this.value.toCSS(env) + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return ('value' in v) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, - this.value.eval(context), - this.important, - this.index, this.inline); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - - ruleset.root = this.root; - ruleset.allowImports = this.allowImports; - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - rule; - - if (! this.root) { - if (context.length === 0) { - paths = this.selectors.map(function (s) { return [s] }); - } else { - this.joinSelectors(paths, context, this.selectors); - } - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive) || (rule instanceof tree.Media)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join( env.compress ? ',' : ',\n'); - - css.push(selector, - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - var before = [], after = [], beforeElements = [], - afterElements = [], hasParentSelector = false, el; - - for (var i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.combinator.value.charAt(0) === '&') { - hasParentSelector = true; - } - if (hasParentSelector) afterElements.push(el); - else beforeElements.push(el); - } - - if (! hasParentSelector) { - afterElements = beforeElements; - beforeElements = []; - } - - if (beforeElements.length > 0) { - before.push(new(tree.Selector)(beforeElements)); - } - - if (afterElements.length > 0) { - after.push(new(tree.Selector)(afterElements)); - } - - for (var c = 0; c < context.length; c++) { - paths.push(before.concat(context[c]).concat(after)); - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; - if (this.elements[0].combinator.value === "") { - this.elements[0].combinator.value = ' '; - } -}; -tree.Selector.prototype.match = function (other) { - var len = this.elements.length, - olen = other.elements.length, - max = Math.min(len, olen); - - if (len < olen) { - return false; - } else { - for (var i = 0; i < max; i++) { - if (this.elements[i].value !== other.elements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.eval = function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - })); -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - return this._css = this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, paths) { - if (val.data) { - this.attrs = val; - } else { - // Add the base path if the URL is relative and we are in the browser - if (typeof(window) !== 'undefined' && !/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(val.value) && paths.length > 0) { - val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - this.value = val; - this.paths = paths; - } -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data - : this.value.toCSS()) + ")"; - }, - eval: function (ctx) { - return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.file, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -// -// browser.js - client-side engine -// - -var isFileProtocol = (location.protocol === 'file:' || - location.protocol === 'chrome:' || - location.protocol === 'chrome-extension:' || - location.protocol === 'resource:'); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 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- for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - if (typeof(window) === 'undefined') { less = {} } - else { less = window.less = {} } - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'node'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed arround by reference. - var env = env || { }; - if (!env.contents) { env.contents={}; } // env.contents must be passed arround with top env - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - mime: env && env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (e, root) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - - var imported = path in that.files; - - that.files[path] = root; // Store the root - - if (e && !that.error) { that.error = e } - - callback(e, root, imported); - - if (that.queue.length === 0) { finish(e) } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - function isWhitespace(c) { - // Could change to \s? - var code = c.charCodeAt(0); - return code === 32 || code === 10 || code === 9; - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, index, k; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - endIndex = i + chunks[j].length, - mem = i += length; - - while (i < endIndex) { - if (! isWhitespace(input.charAt(i))) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - throw { index: i, type: type || 'Syntax', message: msg }; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - function getInput(e, env) { - if (e.filename && env.filename && (e.filename !== env.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, input) { - for (var n = index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function getFileName(e) { - if(less.mode === 'browser' || less.mode === 'rhino') - return e.filename; - else - return require('path').resolve(e.filename); - } - - function getDebugInfo(index, inputStream, e) { - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: getFileName(e) - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input).line + 1); - this.callExtract = lines[getLocation(e.call, input).line]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - switch (c) { - case '{': if (! inParam) { level ++; chunk.push(c); break } - case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } - case '(': if (! inParam) { inParam = true; chunk.push(c); break } - case ')': if ( inParam) { inParam = false; chunk.push(c); break } - default: chunk.push(c); - } - } - if (level > 0) { - error = new(LessError)({ - index: i, - type: 'Parse', - message: "missing closing `}`", - filename: env.filename - }, env); - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - if (error) { - return callback(error); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = [], importError; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false, dumpLineNumbers: env.dumpLineNumbers }); - } catch (e) { - throw new(LessError)(e, env); - } - - if ((importError = parser.imports.error)) { // Check if there was an error during importing - if (importError instanceof LessError) throw importError; - else throw new(LessError)(importError, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('./cssmin').compressor.cssmin(css); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function (e) { - if (e) callback(e); - else callback(null, root); - }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null } - else { i += name.length } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index, env.filename) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.ratio) || - $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.filename); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var name, curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.filename); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn|dpi|dpcm|dppx|rem|vw|vh|vmin|vm|ch)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A Ratio - // - // 16/9 - // - ratio: function () { - var value, c = input.charCodeAt(i); - if (c > 57 || c < 48) return; - - if (value = $(/^(\d+\/\d+)/)) { - return new(tree.Ratio)(value[1]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - save(); - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - - restore(); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args = [], arg, index = i, s = input.charAt(i), name, value, important = false; - - if (s !== '.' && s !== '#') { return } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - if ($('(')) { - while (arg = $(this.expression)) { - value = arg; - name = null; - - // Variable - if (arg.value.length == 1) { - var val = arg.value[0]; - if (val instanceof tree.Variable) { - if ($(':')) { - if (value = $(this.expression)) { - name = val.name; - } else { - throw new(Error)("Expected value"); - } - } - } - } - - args.push({ name: name, value: value }); - - if (! $(',')) { break } - } - if (! $(')')) throw new(Error)("Expected )"); - } - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.filename, important); - } - - restore(); - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - do { - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - variadic = true; - break; - } else if (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - value = expect(this.expression, 'expected expression'); - params.push({ name: param.name, value: value }); - } else if ($(/^\.{3}/)) { - params.push({ name: param.name, variadic: true }); - variadic = true; - break; - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - } else { - break; - } - } while ($(',')) - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^)@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(') && (v = ($(this.entities.variableCurly) || $(this.entities.variable))) && $(')')) { - e = new(tree.Paren)(v); - } - } - - if (e) { return new(tree.Element)(c, e, i) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~') { - i++; - while (input.charAt(i).match(/\s/)) { i++ } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - // depreciated, will be removed soon - if ($('(')) { - sel = $(this.entity); - expect(')'); - return new(tree.Selector)([new(tree.Element)('', sel, i)]); - } - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[A-Za-z][A-Za-z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^(?:[_A-Za-z0-9-]|\\.)+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match, debugInfo; - save(); - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) - ruleset.debugInfo = debugInfo; - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import(?:-(once))?\s+/); - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - return new(tree.Import)(path, imports, features, (dir[1] === 'once'), index); - } - } - - restore(); - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.entity); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features); - if(env.dumpLineNumbers) - media.debugInfo = debugInfo; - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, identifier, e, nodes, nonVendorSpecificName, - hasBlock, hasIdentifier; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - } - - if (hasIdentifier) { - name += " " + ($(/^[^{]+/) || '').trim(); - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else { - if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - - restore(); - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (!isWhitespace(input.charAt(i - 1)) && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-z0-9-]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (!/^([a-z-]+:)?\//.test(path) && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - // __ Now using the hack of passing a ref to top parser's content cache in the 1st arg. __ - loadStyleSheet({ href: path, title: path, type: env.mime, contents: env.contents }, function (e) { - if (e && typeof(env.errback) === "function") { - env.errback.call(null, path, paths, callback, env); - } else { - callback.apply(null, arguments); - } - }, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round((0.2126 * (color.rgb[0]/255) + - 0.7152 * (color.rgb[1]/255) + - 0.0722 * (color.rgb[2]/255)) - * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = threshold.value; - } - if (((0.2126 * (color.rgb[0]/255) + 0.7152 * (color.rgb[1]/255) + 0.0722 * (color.rgb[2]/255)) * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(number(n).toFixed(fraction), n.unit); - } else if (typeof(n) === 'number') { - return n.toFixed(fraction); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - ceil: function (n) { - return this._math('ceil', n); - }, - floor: function (n) { - return this._math('floor', n); - }, - _math: function (fn, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math[fn](number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math[fn](n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False; - }, - ispercentage: function (n) { - return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False; - }, - isem: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - - /* Blending modes */ - - multiply: function(color1, color2) { - var r = color1.rgb[0] * color2.rgb[0] / 255; - var g = color1.rgb[1] * color2.rgb[1] / 255; - var b = color1.rgb[2] * color2.rgb[2] / 255; - return this.rgb(r, g, b); - }, - screen: function(color1, color2) { - var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - overlay: function(color1, color2) { - var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - softlight: function(color1, color2) { - var t = color2.rgb[0] * color1.rgb[0] / 255; - var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255; - t = color2.rgb[1] * color1.rgb[1] / 255; - var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255; - t = color2.rgb[2] * color1.rgb[2] / 255; - var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255; - return this.rgb(r, g, b); - }, - hardlight: function(color1, color2) { - var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255; - var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255; - var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - difference: function(color1, color2) { - var r = Math.abs(color1.rgb[0] - color2.rgb[0]); - var g = Math.abs(color1.rgb[1] - color2.rgb[1]); - var b = Math.abs(color1.rgb[2] - color2.rgb[2]); - return this.rgb(r, g, b); - }, - exclusion: function(color1, color2) { - var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255; - var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255; - var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - average: function(color1, color2) { - var r = (color1.rgb[0] + color2.rgb[0]) / 2; - var g = (color1.rgb[1] + color2.rgb[1]) / 2; - var b = (color1.rgb[2] + color2.rgb[2]) / 2; - return this.rgb(r, g, b); - }, - negation: function(color1, color2) { - var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]); - var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]); - var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]); - return this.rgb(r, g, b); - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - // 'transparent':'rgba(0,0,0,0)', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, filename) { - this.name = name; - this.args = args; - this.index = index; - this.filename = filename; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.filename }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS(env) }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype.eval = function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - }, - - // TODO: Perform unit conversion before comparing - compare: function (other) { - if (other instanceof tree.Dimension) { - if (other.value > this.value) { - return -1; - } else if (other.value < this.value) { - return 1; - } else { - return 0; - } - } else { - return -1; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - var evaldDirective = this; - if (this.ruleset) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name); - evaldDirective.ruleset = this.ruleset.eval(env); - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype.eval = function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); -}; -tree.Element.prototype.toCSS = function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value == '' && this.combinator.value.charAt(0) == '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports, features, once, index) { - var that = this; - - this.once = once; - this.index = index; - this._path = path; - this.features = features && new(tree.Value)(features); - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css(\?.*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (e, root, imported) { - if (e) { e.index = index } - if (imported && that.once) that.skip = imported; - that.root = root || new(tree.Ruleset)([], []); - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - return "@import " + this._path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) return []; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.Media = function (value, features) { - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.ruleset = new(tree.Ruleset)(selectors, value); - this.ruleset.allowImports = true; -}; -tree.Media.prototype = { - toCSS: function (ctx, env) { - var features = this.features.toCSS(env); - - this.ruleset.root = (ctx.length === 0 || ctx[0].multiMedia); - return '@media ' + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - }, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var blockIndex = env.mediaBlocks.length; - env.mediaPath.push(this); - env.mediaBlocks.push(this); - - var media = new(tree.Media)([], []); - if(this.debugInfo) { - this.ruleset.debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - media.features = this.features.eval(env); - - env.frames.unshift(this.ruleset); - media.ruleset = this.ruleset.eval(env); - env.frames.shift(); - - env.mediaBlocks[blockIndex] = media; - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env) - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', 0); - return [new(tree.Selector)([el])]; - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.ruleset = new(tree.Ruleset)(selectors.slice(0), [this.ruleset]); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, filename, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.filename = filename; - this.important = important; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, args, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(args, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments, this.important).rules); - match = true; - } catch (e) { - throw { message: e.message, index: this.index, filename: this.filename, stack: e.stack }; - } - } - } - if (match) { - return rules; - } else { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index, filename: this.filename }; - } - } - } - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.filename }; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - evalParams: function (env, args) { - var frame = new(tree.Ruleset)(null, []), varargs, arg; - - for (var i = 0, val, name; i < this.params.length; i++) { - arg = args && args[i] - - if (arg && arg.name) { - frame.rules.unshift(new(tree.Rule)(arg.name, arg.value.eval(env))); - args.splice(i, 1); - i--; - continue; - } - - if (name = this.params[i].name) { - if (this.params[i].variadic && args) { - varargs = []; - for (var j = i; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else if (val = (arg && arg.value) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(name, val.eval(env))); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - return frame; - }, - eval: function (env, args, important) { - var frame = this.evalParams(env, args), context, _arguments = [], rules, start; - - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push((args[i] && args[i].value) || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.rules.map(function (r) { - return new(tree.Rule)(r.name, r.value, '!important', r.index); - }) : this.rules.slice(0); - - return new(tree.Ruleset)(null, rules).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (! this.variadic) { - if (argsLength < this.required) { return false } - if (argsLength > this.params.length) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - } - - if (this.condition && !this.condition.eval({ - frames: [this.evalParams(env, args)].concat(env.frames) - })) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - toCSS: function (env) { - return '(' + this.value.toCSS(env) + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return ('value' in v) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ratio = function (value) { - this.value = value; -}; -tree.Ratio.prototype = { - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, - this.value.eval(context), - this.important, - this.index, this.inline); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules = []; - - ruleset.root = this.root; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - rules = rules.concat(ruleset.rules[i].eval(env)); - } else { - rules.push(ruleset.rules[i]); - } - } - ruleset.rules = rules; - rules = []; - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - rules = rules.concat(ruleset.rules[i].eval(env)); - } else { - rules.push(ruleset.rules[i]); - } - } - ruleset.rules = rules; - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - if (env.mediaBlocks) { - for(var i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - _rules = [], // - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - debugInfo, // Line number debugging - rule; - - if (! this.root) { - this.joinSelectors(paths, context, this.selectors); - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive) || (rule instanceof tree.Media)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - debugInfo = tree.debugInfo(env, this); - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : ',\n'); - - // Remove duplicates - for (var i = rules.length - 1; i >= 0; i--) { - if (_rules.indexOf(rules[i]) === -1) { - _rules.unshift(rules[i]); - } - } - rules = _rules; - - css.push(debugInfo + selector + - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for(i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for(j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length == 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0)); //new Element(el.Combinator, "")); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for(k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = new(tree.Selector)(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = new(tree.Selector)([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, 0)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for(i = 0; i < newSelectors.length; i++) { - paths.push(newSelectors[i]); - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length == 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for(i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = new(tree.Selector)(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; -}; -tree.Selector.prototype.match = function (other) { - var len = this.elements.length, - olen = other.elements.length, - max = Math.min(len, olen); - - if (len < olen) { - return false; - } else { - for (var i = 0; i < max; i++) { - if (this.elements[i].value !== other.elements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.eval = function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - })); -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - if (this.elements[0].combinator.value === "") { - this._css = ' '; - } else { - this._css = ''; - } - - this._css += this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); - - return this._css; -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, paths) { - this.value = val; - this.paths = paths; -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + this.value.toCSS() + ")"; - }, - eval: function (ctx) { - var val = this.value.eval(ctx); - - // Add the base path if the URL is relative and we are in the browser - if (typeof window !== 'undefined' && typeof val.value === "string" && !/^(?:[a-z-]+:|\/)/.test(val.value) && this.paths.length > 0) { - val.value = this.paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - - return new(tree.URL)(val, this.paths); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.file, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.debugInfo = function(env, ctx) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx)+tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:"' + ctx.debugInfo.fileName + '";}line{font-family:"' + ctx.debugInfo.lineNumber + '";}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -// -// browser.js - client-side engine -// - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -// -// Watch mode -// -less.watch = function () { return this.watchMode = true }; -less.unwatch = function () { return this.watchMode = false }; - -if (less.env === 'development') { - less.optimization = 0; - - if (/!watch/.test(location.hash)) { - less.watch(); - } - var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); - if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; - } - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (e, root, _, sheet, env) { - if (root) { - createCSS(root.toCSS(), sheet, env.lastModified); - } - }); - } - }, less.poll); -} else { - less.optimization = 3; -} - -var cache; - -try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; -} catch (_) { - cache = null; -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (e, root, _, sheet, env) { - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - new(less.Parser)({ - filename: document.location.href.replace(/#.*$/, ''), - dumpLineNumbers: less.dumpLineNumbers - }).parse(styles[i].innerHTML || '', function (e, tree) { - var css = tree.toCSS(); - var style = styles[i]; - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - var contents = sheet.contents || {}; // Passing a ref to top importing parser content cache trough 'sheet' arg. - var url = window.location.href.replace(/[#?].*$/, ''); - var href = sheet.href.replace(/\?.*$/, ''); - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - - // Stylesheets in IE don't always return the full path - if (! /^[a-z-]+:/.test(href)) { - if (href.charAt(0) == "/") { - href = window.location.protocol + "//" + window.location.host + href; - } else { - href = url.slice(0, url.lastIndexOf('/') + 1) + href; - } - } - xhr(sheet.href, sheet.type, function (data, lastModified) { - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, null, data, sheet, { local: true, remaining: remaining }); - } else { - // Use remote copy (re-parse) - try { - contents[href] = data; // Updating top importing parser content cache - new(less.Parser)({ - optimization: less.optimization, - paths: [href.replace(/[\w\.-]+$/, '')], - mime: sheet.type, - filename: href, - 'contents': contents, // Passing top importing parser content cache ref down. - dumpLineNumbers: less.dumpLineNumbers - }).parse(data, function (e, root) { - if (e) { return error(e, href) } - try { - callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining }); - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } catch (e) { - error(e, href); - } - }); - } catch (e) { - error(e, href); - } - } - }, function (status, url) { - throw new(Error)("Couldn't load " + url + " (" + status + ")"); - }); -} - -function extractId(href) { - return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\?.*$/, '' ) // Remove query - .replace(/\.[^\.\/]+$/, '' ) // Remove file extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - var css; - - // Strip the query-string - var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If the stylesheet doesn't exist, create a new node - if ((css = document.getElementById(id)) === null) { - css = document.createElement('style'); - css.type = 'text/css'; - if( sheet.media ){ css.media = sheet.media; } - css.id = id; - var nextEl = sheet && sheet.nextSibling || null; - document.getElementsByTagName('head')[0].insertBefore(css, nextEl); - } - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - (function (node) { - if (css.childNodes.length > 0) { - if (css.firstChild.nodeValue !== node.nodeValue) { - css.replaceChild(node, css.firstChild); - } - } else { - css.appendChild(node); - } - })(document.createTextNode(styles)); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save'); - } - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? less.fileAsync : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - if (isFileProtocol && !less.fileAsync) { - if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new(XMLHttpRequest); - } else { - try { - return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX."); - return null; - } - } -} - -function removeNode(node) { - return node && node.parentNode.removeChild(node); -} - -function log(str) { - if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } -} - -function error(e, href) { - var id = 'less-error-message:' + extractId(href); - var template = '
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    • '; - var elem = document.createElement('div'), timer, content, error = []; - var filename = e.filename || href; - var filenameNoPath = filename.match(/([^\/]+)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

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- for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree, charset; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - if (typeof(window) === 'undefined') { less = {} } - else { less = window.less = {} } - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'node'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed arround by reference. - var env = env || { }; - // env.contents and files must be passed arround with top env - if (!env.contents) { env.contents = {}; } - env.rootpath = env.rootpath || ''; // env.rootpath must be initialized to '' if not provided - if (!env.files) { env.files = {}; } - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (e, root, fullPath) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - - var imported = fullPath in that.files; - - that.files[fullPath] = root; // Store the root - - if (e && !that.error) { that.error = e } - - callback(e, root, imported); - - if (that.queue.length === 0) { finish(that.error) } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - function isWhitespace(c) { - // Could change to \s? - var code = c.charCodeAt(0); - return code === 32 || code === 10 || code === 9; - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, index, k; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - endIndex = i + chunks[j].length, - mem = i += length; - - while (i < endIndex) { - if (! isWhitespace(input.charAt(i))) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - function getInput(e, env) { - if (e.filename && env.filename && (e.filename !== env.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, input) { - for (var n = index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function getFileName(e) { - if(less.mode === 'browser' || less.mode === 'rhino') - return e.filename; - else - return require('path').resolve(e.filename); - } - - function getDebugInfo(index, inputStream, e) { - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: getFileName(e) - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input).line + 1); - this.callExtract = lines[getLocation(e.call, input).line]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length;) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - } - } - - switch (c) { - case '{': if (! inParam) { level ++; chunk.push(c); break } - case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } - case '(': if (! inParam) { inParam = true; chunk.push(c); break } - case ')': if ( inParam) { inParam = false; chunk.push(c); break } - default: chunk.push(c); - } - - i++; - } - if (level != 0) { - error = new(LessError)({ - index: i-1, - type: 'Parse', - message: (level > 0) ? "missing closing `}`" : "missing opening `{`", - filename: env.filename - }, env); - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - if (error) { - return callback(error, env); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = [], importError; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false, dumpLineNumbers: env.dumpLineNumbers }); - } catch (e) { - throw new(LessError)(e, env); - } - - if ((importError = parser.imports.error)) { // Check if there was an error during importing - if (importError instanceof LessError) throw importError; - else throw new(LessError)(importError, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('ycssmin').cssmin(css); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function (e) { - e = error || e; - if (e) callback(e); - else callback(null, root); - }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/) || $(/^;+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null } - else { i += name.length } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index, env.filename) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.ratio) || - $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted) || - $(this.entities.unicodeDescriptor); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.rootpath); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.filename); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var name, curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.filename); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) return; - - if (value = $(/^([+-]?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn|dpi|dpcm|dppx|rem|vw|vh|vmin|vm|ch)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A Ratio - // - // 16/9 - // - ratio: function () { - var value, c = input.charCodeAt(i); - if (c > 57 || c < 48) return; - - if (value = $(/^(\d+\/\d+)/)) { - return new(tree.Ratio)(value[1]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - if (ud = $(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/)) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - save(); - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - - restore(); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, argsSemiColon = [], argsComma = [], args, delim, arg, nameLoop, expressions, isSemiColonSeperated, expressionContainsNamed, index = i, s = input.charAt(i), name, value, important = false; - - if (s !== '.' && s !== '#') { return } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - if ($('(')) { - expressions = []; - while (arg = $(this.expression)) { - nameLoop = null; - value = arg; - - // Variable - if (arg.value.length == 1) { - var val = arg.value[0]; - if (val instanceof tree.Variable) { - if ($(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(this.expression); - nameLoop = (name = val.name); - } - } - } - - expressions.push(value); - - argsComma.push({ name: nameLoop, value: value }); - - if ($(',')) { - continue; - } - - if ($(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name: name, value: value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - expect(')'); - } - - args = isSemiColonSeperated ? argsSemiColon : argsComma; - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.filename, important); - } - - restore(); - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - do { - $(this.comment); - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - variadic = true; - params.push({ variadic: true }); - break; - } else if (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - value = expect(this.expression, 'expected expression'); - params.push({ name: param.name, value: value }); - } else if ($(/^\.{3}/)) { - params.push({ name: param.name, variadic: true }); - variadic = true; - break; - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - } else { - break; - } - } while ($(',') || $(';')) - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - $(this.comment); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) ||$(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^()@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(')) { - if ((v = ($(this.entities.variableCurly) || - $(this.entities.variable) || - $(this.selector))) && - $(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, i) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|') { - i++; - while (input.charAt(i).match(/\s/)) { i++ } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - // depreciated, will be removed soon - if ($('(')) { - sel = $(this.entity); - expect(')'); - return new(tree.Selector)([new(tree.Element)('', sel, i)]); - } - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^(?:[_A-Za-z0-9-]|\\.)+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match, debugInfo; - save(); - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) - ruleset.debugInfo = debugInfo; - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import(?:-(once))?\s+/); - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - return new(tree.Import)(path, imports, features, (dir[1] === 'once'), index, env.rootpath); - } - } - - restore(); - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.entity); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features); - if(env.dumpLineNumbers) - media.debugInfo = debugInfo; - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, identifier, e, nodes, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - if (!name) return; - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - name += " " + ($(/^[^{]+/) || '').trim(); - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else { - if ((value = hasExpression ? $(this.expression) : $(this.entity)) && $(';')) { - var directive = new(tree.Directive)(name, value); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while (!peek(/^\/[*\/]/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (!isWhitespace(input.charAt(i - 1)) && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-z0-9-]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (!/^([a-z-]+:)?\//.test(path) && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ - href: path, - title: path, - type: env.mime, - contents: env.contents, - files: env.files, - rootpath: env.rootpath, - entryPath: env.entryPath, - relativeUrls: env.relativeUrls }, - function (e, root, data, sheet, _, path) { - if (e && typeof(env.errback) === "function") { - env.errback.call(null, path, paths, callback, env); - } else { - callback.call(null, e, root, path); - } - }, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 256); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round((0.2126 * (color.rgb[0]/255) + - 0.7152 * (color.rgb[1]/255) + - 0.0722 * (color.rgb[2]/255)) * - color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = threshold.value; - } - if (((0.2126 * (color.rgb[0]/255) + 0.7152 * (color.rgb[1]/255) + 0.0722 * (color.rgb[2]/255)) * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return this._math(function(num) { return num.toFixed(fraction); }, n); - }, - ceil: function (n) { - return this._math(Math.ceil, n); - }, - floor: function (n) { - return this._math(Math.floor, n); - }, - _math: function (fn, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(fn(parseFloat(n.value)), n.unit); - } else if (typeof(n) === 'number') { - return fn(n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False; - }, - ispercentage: function (n) { - return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False; - }, - isem: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - - /* Blending modes */ - - multiply: function(color1, color2) { - var r = color1.rgb[0] * color2.rgb[0] / 255; - var g = color1.rgb[1] * color2.rgb[1] / 255; - var b = color1.rgb[2] * color2.rgb[2] / 255; - return this.rgb(r, g, b); - }, - screen: function(color1, color2) { - var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - overlay: function(color1, color2) { - var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - softlight: function(color1, color2) { - var t = color2.rgb[0] * color1.rgb[0] / 255; - var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255; - t = color2.rgb[1] * color1.rgb[1] / 255; - var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255; - t = color2.rgb[2] * color1.rgb[2] / 255; - var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255; - return this.rgb(r, g, b); - }, - hardlight: function(color1, color2) { - var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255; - var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255; - var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - difference: function(color1, color2) { - var r = Math.abs(color1.rgb[0] - color2.rgb[0]); - var g = Math.abs(color1.rgb[1] - color2.rgb[1]); - var b = Math.abs(color1.rgb[2] - color2.rgb[2]); - return this.rgb(r, g, b); - }, - exclusion: function(color1, color2) { - var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255; - var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255; - var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - average: function(color1, color2) { - var r = (color1.rgb[0] + color2.rgb[0]) / 2; - var g = (color1.rgb[1] + color2.rgb[1]) / 2; - var b = (color1.rgb[2] + color2.rgb[2]) / 2; - return this.rgb(r, g, b); - }, - negation: function(color1, color2) { - var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]); - var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]); - var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]); - return this.rgb(r, g, b); - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - } -}; - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit == '%') { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - // 'transparent':'rgba(0,0,0,0)', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, filename) { - this.name = name; - this.args = args; - this.index = index; - this.filename = filename; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.filename }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS(env) }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype.eval = function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - if (other.value > this.value) { - return -1; - } else if (other.value < this.value) { - return 1; - } else { - if (other.unit && this.unit !== other.unit) { - return -1; - } - return 0; - } - } else { - return -1; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - var evaldDirective = this; - if (this.ruleset) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name); - evaldDirective.ruleset = this.ruleset.eval(env); - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype.eval = function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); -}; -tree.Element.prototype.toCSS = function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value == '' && this.combinator.value.charAt(0) == '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ', - '|' : env.compress ? '|' : ' | ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports, features, once, index, rootpath) { - var that = this; - - this.once = once; - this.index = index; - this._path = path; - this.features = features && new(tree.Value)(features); - this.rootpath = rootpath; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /(\.[a-z]*$)|([\?;].*)$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css([\?;].*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (e, root, imported) { - if (e) { e.index = index } - if (imported && that.once) that.skip = imported; - that.root = root || new(tree.Ruleset)([], []); - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - // Add the base path if the import is relative - if (typeof this._path.value === "string" && !/^(?:[a-z-]+:|\/)/.test(this._path.value)) { - this._path.value = this.rootpath + this._path.value; - } - return "@import " + this._path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) return []; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.Media = function (value, features) { - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.ruleset = new(tree.Ruleset)(selectors, value); - this.ruleset.allowImports = true; -}; -tree.Media.prototype = { - toCSS: function (ctx, env) { - var features = this.features.toCSS(env); - - this.ruleset.root = (ctx.length === 0 || ctx[0].multiMedia); - return '@media ' + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - }, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)([], []); - if(this.debugInfo) { - this.ruleset.debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - media.features = this.features.eval(env); - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.ruleset); - media.ruleset = this.ruleset.eval(env); - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env) - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', 0); - return [new(tree.Selector)([el])]; - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.ruleset = new(tree.Ruleset)(selectors.slice(0), [this.ruleset]); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, filename, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.filename = filename; - this.important = important; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - if (mixin.matchArgs(args, env)) { - if (!mixin.matchCondition || mixin.matchCondition(args, env)) { - try { - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.filename, stack: e.stack }; - } - } - match = true; - } - } - if (match) { - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")`", - index: this.index, filename: this.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.filename }; - } - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - var frame = new(tree.Ruleset)(null, []), varargs, arg, params = this.params.slice(0), i, j, val, name, isNamedFound, argIndex; - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.rules.unshift(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) continue; - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.rules.unshift(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, {frames: mixinFrames}, args, _arguments), - context, rules, start, ruleset; - - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.parent.makeImportant.apply(this).rules : this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules).eval({ - frames: [this, frame].concat(mixinFrames) - }); - ruleset.originalRuleset = this; - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval({ - frames: [this.evalParams(env, {frames: this.frames.concat(env.frames)}, args, [])].concat(env.frames) - })) { return false } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (! this.variadic) { - if (argsLength < this.required) { return false } - if (argsLength > this.params.length) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - if (!a.operate) { - throw { name: "OperationError", - message: "Operation on an invalid type" }; - } - - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - toCSS: function (env) { - return '(' + this.value.toCSS(env) + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ratio = function (value) { - this.value = value; -}; -tree.Ratio.prototype = { - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, - this.value.eval(context), - this.important, - this.index, this.inline); -}; - -tree.Rule.prototype.makeImportant = function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.index, this.inline); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - rules = ruleset.rules[i].eval(env); - ruleset.rules.splice.apply(ruleset.rules, [i, 1].concat(rules)); - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - if (env.mediaBlocks) { - for(var i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var i, rules; - for (i = 0; i < this.rules.length; i++) { - if (this.rules[i] instanceof tree.Import) { - rules = this.rules[i].eval(env); - if (typeof rules.length === "number") { - this.rules.splice.apply(this.rules, [i, 1].concat(rules)); - i+= rules.length-1; - } else { - this.rules.splice(i, 1, rules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - _rules = [], // - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - debugInfo, // Line number debugging - rule; - - if (! this.root) { - this.joinSelectors(paths, context, this.selectors); - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Media)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Directive) { - var cssValue = rule.toCSS(paths, env); - // Output only the first @charset definition as such - convert the others - // to comments in case debug is enabled - if (rule.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (env.charset) { - if (rule.debugInfo) { - rulesets.push(tree.debugInfo(env, rule)); - rulesets.push(new tree.Comment("/* "+cssValue.replace(/\n/g, "")+" */\n").toCSS(env)); - } - continue; - } - env.charset = true; - } - rulesets.push(cssValue); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - debugInfo = tree.debugInfo(env, this); - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : ',\n'); - - // Remove duplicates - for (var i = rules.length - 1; i >= 0; i--) { - if (_rules.indexOf(rules[i]) === -1) { - _rules.unshift(rules[i]); - } - } - rules = _rules; - - css.push(debugInfo + selector + - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for(i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for(j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length == 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0)); //new Element(el.Combinator, "")); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for(k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = new(tree.Selector)(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = new(tree.Selector)([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, 0)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for(i = 0; i < newSelectors.length; i++) { - paths.push(newSelectors[i]); - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length == 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for(i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = new(tree.Selector)(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; -}; -tree.Selector.prototype.match = function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, max, i; - - oelements = other.elements.slice( - (other.elements.length && other.elements[0].value === "&") ? 1 : 0); - olen = oelements.length; - max = Math.min(len, olen) - - if (olen === 0 || len < olen) { - return false; - } else { - for (i = 0; i < max; i++) { - if (elements[i].value !== oelements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.eval = function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - })); -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - if (this.elements[0].combinator.value === "") { - this._css = ' '; - } else { - this._css = ''; - } - - this._css += this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); - - return this._css; -}; - -})(require('../tree')); -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, rootpath) { - this.value = val; - this.rootpath = rootpath; -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + this.value.toCSS() + ")"; - }, - eval: function (ctx) { - var val = this.value.eval(ctx), rootpath; - - // Add the base path if the URL is relative - if (typeof val.value === "string" && !/^(?:[a-z-]+:|\/)/.test(val.value)) { - rootpath = this.rootpath; - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - return new(tree.URL)(val, this.rootpath); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.file, - index: this.index }; - } - - this.evaluating = true; - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { - this.evaluating = false; - return variable; - } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.file, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.debugInfo = function(env, ctx) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx)+tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/[\/:.]/g, '\\$&') + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -// -// browser.js - client-side engine -// - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - less.tree.functions[func] = less.functions[func]; - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -// -// Watch mode -// -less.watch = function () { - if (!less.watchMode ){ - less.env = 'development'; - initRunningMode(); - } - return this.watchMode = true -}; - -less.unwatch = function () {clearInterval(less.watchTimer); return this.watchMode = false; }; - -function initRunningMode(){ - if (less.env === 'development') { - less.optimization = 0; - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (e, root, _, sheet, env) { - if (root) { - createCSS(root.toCSS(), sheet, env.lastModified); - } - }); - } - }, less.poll); - } else { - less.optimization = 3; - } -} - -if (/!watch/.test(location.hash)) { - less.watch(); -} - -var cache = null; - -if (less.env != 'development') { - try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; - } catch (_) {} -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - -// -// With this function, it's possible to alter variables and re-render -// CSS without reloading less-files -// -var session_cache = ''; -less.modifyVars = function(record) { - var str = session_cache; - for (name in record) { - str += ((name.slice(0,1) === '@')? '' : '@') + name +': '+ - ((record[name].slice(-1) === ';')? record[name] : record[name] +';'); - } - new(less.Parser)().parse(str, function (e, root) { - createCSS(root.toCSS(), less.sheets[less.sheets.length - 1]); - }); -}; - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (e, root, _, sheet, env) { - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - new(less.Parser)({ - filename: document.location.href.replace(/#.*$/, ''), - dumpLineNumbers: less.dumpLineNumbers - }).parse(styles[i].innerHTML || '', function (e, tree) { - var css = tree.toCSS(); - var style = styles[i]; - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function pathDiff(url, baseUrl) { - // diff between two paths to create a relative path - - var urlParts = extractUrlParts(url), - baseUrlParts = extractUrlParts(baseUrl), - i, max, urlDirectories, baseUrlDirectories, diff = ""; - if (urlParts.hostPart !== baseUrlParts.hostPart) { - return ""; - } - max = Math.max(baseUrlParts.directories.length, urlParts.directories.length); - for(i = 0; i < max; i++) { - if (baseUrlParts.directories[i] !== urlParts.directories[i]) { break; } - } - baseUrlDirectories = baseUrlParts.directories.slice(i); - urlDirectories = urlParts.directories.slice(i); - for(i = 0; i < baseUrlDirectories.length-1; i++) { - diff += "../"; - } - for(i = 0; i < urlDirectories.length-1; i++) { - diff += urlDirectories[i] + "/"; - } - return diff; -} - -function extractUrlParts(url, baseUrl) { - // urlParts[1] = protocol&hostname || / - // urlParts[2] = / if path relative to host base - // urlParts[3] = directories - // urlParts[4] = filename - // urlParts[5] = parameters - - var urlPartsRegex = /^((?:[a-z-]+:)?\/\/(?:[^\/\?#]+\/)|([\/\\]))?((?:[^\/\\\?#]+[\/\\])*)([^\/\\\?#]*)([#\?].*)?$/, - urlParts = url.match(urlPartsRegex), - returner = {}, directories = [], i, baseUrlParts; - - if (!urlParts) { - throw new Error("Could not parse sheet href - '"+url+"'"); - } - - // Stylesheets in IE don't always return the full path - if (!urlParts[1] || urlParts[2]) { - baseUrlParts = baseUrl.match(urlPartsRegex); - if (!baseUrlParts) { - throw new Error("Could not parse page url - '"+baseUrl+"'"); - } - urlParts[1] = baseUrlParts[1]; - if (!urlParts[2]) { - urlParts[3] = baseUrlParts[3] + urlParts[3]; - } - } - - if (urlParts[3]) { - directories = urlParts[3].replace("\\", "/").split("/"); - - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".." && i > 0) { - directories.splice(i-1, 2); - i -= 2; - } - } - } - - returner.hostPart = urlParts[1]; - returner.directories = directories; - returner.path = urlParts[1] + directories.join("/"); - returner.fileUrl = returner.path + (urlParts[4] || ""); - returner.url = returner.fileUrl + (urlParts[5] || ""); - return returner; -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - // sheet may be set to the stylesheet for the initial load or a collection of properties including - // some env variables for imports - var contents = sheet.contents || {}; - var files = sheet.files || {}; - var hrefParts = extractUrlParts(sheet.href, window.location.href); - var href = hrefParts.url; - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - var rootpath; - - if (less.relativeUrls) { - if (less.rootpath) { - if (sheet.entryPath) { - rootpath = extractUrlParts(less.rootpath + pathDiff(hrefParts.path, sheet.entryPath)).path; - } else { - rootpath = less.rootpath; - } - } else { - rootpath = hrefParts.path; - } - } else { - if (less.rootpath) { - rootpath = less.rootpath; - } else { - if (sheet.entryPath) { - rootpath = sheet.entryPath; - } else { - rootpath = hrefParts.path; - } - } - } - - xhr(href, sheet.type, function (data, lastModified) { - // Store data this session - session_cache += data.replace(/@import .+?;/ig, ''); - - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, null, data, sheet, { local: true, remaining: remaining }, href); - } else { - // Use remote copy (re-parse) - try { - contents[href] = data; // Updating top importing parser content cache - new(less.Parser)({ - optimization: less.optimization, - paths: [hrefParts.path], - entryPath: sheet.entryPath || hrefParts.path, - mime: sheet.type, - filename: href, - rootpath: rootpath, - relativeUrls: sheet.relativeUrls, - contents: contents, // Passing top importing parser content cache ref down. - files: files, - dumpLineNumbers: less.dumpLineNumbers - }).parse(data, function (e, root) { - if (e) { return error(e, href) } - try { - callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining }, href); - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } catch (e) { - error(e, href); - } - }); - } catch (e) { - error(e, href); - } - } - }, function (status, url) { - throw new(Error)("Couldn't load " + url + " (" + status + ")"); - }); -} - -function extractId(href) { - return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - var css; - - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If the stylesheet doesn't exist, create a new node - if ((css = document.getElementById(id)) === null) { - css = document.createElement('style'); - css.type = 'text/css'; - if( sheet.media ){ css.media = sheet.media; } - css.id = id; - var nextEl = sheet && sheet.nextSibling || null; - (nextEl || document.getElementsByTagName('head')[0]).parentNode.insertBefore(css, nextEl); - } - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - (function (node) { - if (css.childNodes.length > 0) { - if (css.firstChild.nodeValue !== node.nodeValue) { - css.replaceChild(node, css.firstChild); - } - } else { - css.appendChild(node); - } - })(document.createTextNode(styles)); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save'); - } - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? less.fileAsync : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - if (isFileProtocol && !less.fileAsync) { - if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new(XMLHttpRequest); - } else { - try { - return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX."); - return null; - } - } -} - -function removeNode(node) { - return node && node.parentNode.removeChild(node); -} - -function log(str) { - if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } -} - -function error(e, href) { - var id = 'less-error-message:' + extractId(href); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, error = []; - var filename = e.filename || href; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.message || 'There is an error in your .less file') + - '

    ' + '

    in ' + filenameNoPath + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i]) { - error.push(template.replace(/\{line\}/, parseInt(e.line) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.stack) { - content += '
    ' + e.stack.split('\n').slice(1).join('
    '); - } else if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - '
      ' + error.join('') + '
    '; - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #dd6666;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.line {', - 'color: #ff0000;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); 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e.localStorage=="undefined"?null:e.localStorage}catch(c){}var h=document.getElementsByTagName("link"),p=/^text\/(x-)?less$/;r.sheets=[];for(var d=0;d>> 0; - for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree, charset; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - if (typeof(window) === 'undefined') { less = {} } - else { less = window.less = {} } - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'node'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed arround by reference. - var env = env || { }; - // env.contents and files must be passed arround with top env - if (!env.contents) { env.contents = {}; } - env.rootpath = env.rootpath || ''; // env.rootpath must be initialized to '' if not provided - if (!env.files) { env.files = {}; } - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (e, root, fullPath) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - - var imported = fullPath in that.files; - - that.files[fullPath] = root; // Store the root - - if (e && !that.error) { that.error = e } - - callback(e, root, imported); - - if (that.queue.length === 0) { finish(that.error) } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - function isWhitespace(c) { - // Could change to \s? - var code = c.charCodeAt(0); - return code === 32 || code === 10 || code === 9; - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, index, k; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - endIndex = i + chunks[j].length, - mem = i += length; - - while (i < endIndex) { - if (! isWhitespace(input.charAt(i))) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - function getInput(e, env) { - if (e.filename && env.filename && (e.filename !== env.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, input) { - for (var n = index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function getFileName(e) { - if(less.mode === 'browser' || less.mode === 'rhino') - return e.filename; - else - return require('path').resolve(e.filename); - } - - function getDebugInfo(index, inputStream, e) { - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: getFileName(e) - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input).line + 1); - this.callExtract = lines[getLocation(e.call, input).line]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length;) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - } - } - - switch (c) { - case '{': if (! inParam) { level ++; chunk.push(c); break } - case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } - case '(': if (! inParam) { inParam = true; chunk.push(c); break } - case ')': if ( inParam) { inParam = false; chunk.push(c); break } - default: chunk.push(c); - } - - i++; - } - if (level != 0) { - error = new(LessError)({ - index: i-1, - type: 'Parse', - message: (level > 0) ? "missing closing `}`" : "missing opening `{`", - filename: env.filename - }, env); - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - if (error) { - return callback(error, env); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = [], importError; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false, dumpLineNumbers: env.dumpLineNumbers }); - } catch (e) { - throw new(LessError)(e, env); - } - - if ((importError = parser.imports.error)) { // Check if there was an error during importing - if (importError instanceof LessError) throw importError; - else throw new(LessError)(importError, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('ycssmin').cssmin(css); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function (e) { - e = error || e; - if (e) callback(e); - else callback(null, root); - }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/) || $(/^;+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null } - else { i += name.length } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index, env.filename) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.ratio) || - $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted) || - $(this.entities.unicodeDescriptor); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.rootpath); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.filename); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var name, curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.filename); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) return; - - if (value = $(/^([+-]?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn|dpi|dpcm|dppx|rem|vw|vh|vmin|vm|ch)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A Ratio - // - // 16/9 - // - ratio: function () { - var value, c = input.charCodeAt(i); - if (c > 57 || c < 48) return; - - if (value = $(/^(\d+\/\d+)/)) { - return new(tree.Ratio)(value[1]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - if (ud = $(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/)) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - save(); - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - - restore(); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, argsSemiColon = [], argsComma = [], args, delim, arg, nameLoop, expressions, isSemiColonSeperated, expressionContainsNamed, index = i, s = input.charAt(i), name, value, important = false; - - if (s !== '.' && s !== '#') { return } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - if ($('(')) { - expressions = []; - while (arg = $(this.expression)) { - nameLoop = null; - value = arg; - - // Variable - if (arg.value.length == 1) { - var val = arg.value[0]; - if (val instanceof tree.Variable) { - if ($(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(this.expression); - nameLoop = (name = val.name); - } - } - } - - expressions.push(value); - - argsComma.push({ name: nameLoop, value: value }); - - if ($(',')) { - continue; - } - - if ($(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name: name, value: value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - expect(')'); - } - - args = isSemiColonSeperated ? argsSemiColon : argsComma; - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.filename, important); - } - - restore(); - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - do { - $(this.comment); - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - variadic = true; - params.push({ variadic: true }); - break; - } else if (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - value = expect(this.expression, 'expected expression'); - params.push({ name: param.name, value: value }); - } else if ($(/^\.{3}/)) { - params.push({ name: param.name, variadic: true }); - variadic = true; - break; - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - } else { - break; - } - } while ($(',') || $(';')) - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - $(this.comment); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) ||$(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^()@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(')) { - if ((v = ($(this.entities.variableCurly) || - $(this.entities.variable) || - $(this.selector))) && - $(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, i) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|') { - i++; - while (input.charAt(i).match(/\s/)) { i++ } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - // depreciated, will be removed soon - if ($('(')) { - sel = $(this.entity); - if (!$(')')) { return null; } - return new(tree.Selector)([new(tree.Element)('', sel, i)]); - } - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^(?:[_A-Za-z0-9-]|\\.)+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match, debugInfo; - - save(); - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) - ruleset.debugInfo = debugInfo; - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import(?:-(once))?\s+/); - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - return new(tree.Import)(path, imports, features, (dir[1] === 'once'), index, env.rootpath); - } - } - - restore(); - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.entity); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features); - if(env.dumpLineNumbers) - media.debugInfo = debugInfo; - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, identifier, e, nodes, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - if (!name) return; - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - name += " " + ($(/^[^{]+/) || '').trim(); - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else { - if ((value = hasExpression ? $(this.expression) : $(this.entity)) && $(';')) { - var directive = new(tree.Directive)(name, value); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while (!peek(/^\/[*\/]/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (!isWhitespace(input.charAt(i - 1)) && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-z0-9-]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (!/^([a-z-]+:)?\//.test(path) && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ - href: path, - title: path, - type: env.mime, - contents: env.contents, - files: env.files, - rootpath: env.rootpath, - entryPath: env.entryPath, - relativeUrls: env.relativeUrls }, - function (e, root, data, sheet, _, path) { - if (e && typeof(env.errback) === "function") { - env.errback.call(null, path, paths, callback, env); - } else { - callback.call(null, e, root, path); - } - }, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 256); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round((0.2126 * (color.rgb[0]/255) + - 0.7152 * (color.rgb[1]/255) + - 0.0722 * (color.rgb[2]/255)) * - color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = threshold.value; - } - if (((0.2126 * (color.rgb[0]/255) + 0.7152 * (color.rgb[1]/255) + 0.0722 * (color.rgb[2]/255)) * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return this._math(function(num) { return num.toFixed(fraction); }, n); - }, - ceil: function (n) { - return this._math(Math.ceil, n); - }, - floor: function (n) { - return this._math(Math.floor, n); - }, - _math: function (fn, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(fn(parseFloat(n.value)), n.unit); - } else if (typeof(n) === 'number') { - return fn(n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False; - }, - ispercentage: function (n) { - return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False; - }, - isem: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - - /* Blending modes */ - - multiply: function(color1, color2) { - var r = color1.rgb[0] * color2.rgb[0] / 255; - var g = color1.rgb[1] * color2.rgb[1] / 255; - var b = color1.rgb[2] * color2.rgb[2] / 255; - return this.rgb(r, g, b); - }, - screen: function(color1, color2) { - var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - overlay: function(color1, color2) { - var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - softlight: function(color1, color2) { - var t = color2.rgb[0] * color1.rgb[0] / 255; - var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255; - t = color2.rgb[1] * color1.rgb[1] / 255; - var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255; - t = color2.rgb[2] * color1.rgb[2] / 255; - var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255; - return this.rgb(r, g, b); - }, - hardlight: function(color1, color2) { - var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255; - var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255; - var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - difference: function(color1, color2) { - var r = Math.abs(color1.rgb[0] - color2.rgb[0]); - var g = Math.abs(color1.rgb[1] - color2.rgb[1]); - var b = Math.abs(color1.rgb[2] - color2.rgb[2]); - return this.rgb(r, g, b); - }, - exclusion: function(color1, color2) { - var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255; - var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255; - var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - average: function(color1, color2) { - var r = (color1.rgb[0] + color2.rgb[0]) / 2; - var g = (color1.rgb[1] + color2.rgb[1]) / 2; - var b = (color1.rgb[2] + color2.rgb[2]) / 2; - return this.rgb(r, g, b); - }, - negation: function(color1, color2) { - var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]); - var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]); - var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]); - return this.rgb(r, g, b); - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - } -}; - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit == '%') { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - // 'transparent':'rgba(0,0,0,0)', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, filename) { - this.name = name; - this.args = args; - this.index = index; - this.filename = filename; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }), - result; - - if (this.name in tree.functions) { // 1. - try { - result = tree.functions[this.name].apply(tree.functions, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.filename }; - } - } - - // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS(env) }).join(', ') + ")"); - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype.eval = function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - if (other.value > this.value) { - return -1; - } else if (other.value < this.value) { - return 1; - } else { - if (other.unit && this.unit !== other.unit) { - return -1; - } - return 0; - } - } else { - return -1; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - var evaldDirective = this; - if (this.ruleset) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name); - evaldDirective.ruleset = this.ruleset.eval(env); - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype.eval = function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); -}; -tree.Element.prototype.toCSS = function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value == '' && this.combinator.value.charAt(0) == '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ', - '|' : env.compress ? '|' : ' | ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports, features, once, index, rootpath) { - var that = this; - - this.once = once; - this.index = index; - this._path = path; - this.features = features && new(tree.Value)(features); - this.rootpath = rootpath; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /(\.[a-z]*$)|([\?;].*)$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css([\?;].*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (e, root, imported) { - if (e) { e.index = index } - if (imported && that.once) that.skip = imported; - that.root = root || new(tree.Ruleset)([], []); - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - // Add the base path if the import is relative - if (typeof this._path.value === "string" && !/^(?:[a-z-]+:|\/)/.test(this._path.value)) { - this._path.value = this.rootpath + this._path.value; - } - return "@import " + this._path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) return []; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.Media = function (value, features) { - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.ruleset = new(tree.Ruleset)(selectors, value); - this.ruleset.allowImports = true; -}; -tree.Media.prototype = { - toCSS: function (ctx, env) { - var features = this.features.toCSS(env); - - this.ruleset.root = (ctx.length === 0 || ctx[0].multiMedia); - return '@media ' + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - }, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)([], []); - if(this.debugInfo) { - this.ruleset.debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - media.features = this.features.eval(env); - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.ruleset); - media.ruleset = this.ruleset.eval(env); - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env) - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', 0); - return [new(tree.Selector)([el])]; - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.ruleset = new(tree.Ruleset)(selectors.slice(0), [this.ruleset]); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, filename, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.filename = filename; - this.important = important; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - if (mixin.matchArgs(args, env)) { - if (!mixin.matchCondition || mixin.matchCondition(args, env)) { - try { - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.filename, stack: e.stack }; - } - } - match = true; - } - } - if (match) { - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")`", - index: this.index, filename: this.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.filename }; - } - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - var frame = new(tree.Ruleset)(null, []), varargs, arg, params = this.params.slice(0), i, j, val, name, isNamedFound, argIndex; - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.rules.unshift(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) continue; - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.rules.unshift(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, {frames: mixinFrames}, args, _arguments), - context, rules, start, ruleset; - - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.parent.makeImportant.apply(this).rules : this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules).eval({ - frames: [this, frame].concat(mixinFrames) - }); - ruleset.originalRuleset = this; - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval({ - frames: [this.evalParams(env, {frames: this.frames.concat(env.frames)}, args, [])].concat(env.frames) - })) { return false } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (! this.variadic) { - if (argsLength < this.required) { return false } - if (argsLength > this.params.length) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - if (!a.operate) { - throw { name: "OperationError", - message: "Operation on an invalid type" }; - } - - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - toCSS: function (env) { - return '(' + this.value.toCSS(env) + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ratio = function (value) { - this.value = value; -}; -tree.Ratio.prototype = { - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, - this.value.eval(context), - this.important, - this.index, this.inline); -}; - -tree.Rule.prototype.makeImportant = function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.index, this.inline); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - rules = ruleset.rules[i].eval(env); - ruleset.rules.splice.apply(ruleset.rules, [i, 1].concat(rules)); - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - if (env.mediaBlocks) { - for(var i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var i, rules; - for (i = 0; i < this.rules.length; i++) { - if (this.rules[i] instanceof tree.Import) { - rules = this.rules[i].eval(env); - if (typeof rules.length === "number") { - this.rules.splice.apply(this.rules, [i, 1].concat(rules)); - i+= rules.length-1; - } else { - this.rules.splice(i, 1, rules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - _rules = [], // - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - debugInfo, // Line number debugging - rule; - - if (! this.root) { - this.joinSelectors(paths, context, this.selectors); - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Media)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Directive) { - var cssValue = rule.toCSS(paths, env); - // Output only the first @charset definition as such - convert the others - // to comments in case debug is enabled - if (rule.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (env.charset) { - if (rule.debugInfo) { - rulesets.push(tree.debugInfo(env, rule)); - rulesets.push(new tree.Comment("/* "+cssValue.replace(/\n/g, "")+" */\n").toCSS(env)); - } - continue; - } - env.charset = true; - } - rulesets.push(cssValue); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - debugInfo = tree.debugInfo(env, this); - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : ',\n'); - - // Remove duplicates - for (var i = rules.length - 1; i >= 0; i--) { - if (_rules.indexOf(rules[i]) === -1) { - _rules.unshift(rules[i]); - } - } - rules = _rules; - - css.push(debugInfo + selector + - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for(i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for(j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length == 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0)); //new Element(el.Combinator, "")); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for(k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = new(tree.Selector)(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = new(tree.Selector)([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, 0)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for(i = 0; i < newSelectors.length; i++) { - paths.push(newSelectors[i]); - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length == 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for(i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = new(tree.Selector)(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; -}; -tree.Selector.prototype.match = function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, max, i; - - oelements = other.elements.slice( - (other.elements.length && other.elements[0].value === "&") ? 1 : 0); - olen = oelements.length; - max = Math.min(len, olen) - - if (olen === 0 || len < olen) { - return false; - } else { - for (i = 0; i < max; i++) { - if (elements[i].value !== oelements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.eval = function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - })); -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - if (this.elements[0].combinator.value === "") { - this._css = ' '; - } else { - this._css = ''; - } - - this._css += this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); - - return this._css; -}; - -})(require('../tree')); -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, rootpath) { - this.value = val; - this.rootpath = rootpath; -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + this.value.toCSS() + ")"; - }, - eval: function (ctx) { - var val = this.value.eval(ctx), rootpath; - - // Add the base path if the URL is relative - if (typeof val.value === "string" && !/^(?:[a-z-]+:|\/)/.test(val.value)) { - rootpath = this.rootpath; - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - return new(tree.URL)(val, this.rootpath); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.file, - index: this.index }; - } - - this.evaluating = true; - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { - this.evaluating = false; - return variable; - } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.file, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.debugInfo = function(env, ctx) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx)+tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/[\/:.]/g, '\\$&') + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -// -// browser.js - client-side engine -// - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - less.tree.functions[func] = less.functions[func]; - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -// -// Watch mode -// -less.watch = function () { - if (!less.watchMode ){ - less.env = 'development'; - initRunningMode(); - } - return this.watchMode = true -}; - -less.unwatch = function () {clearInterval(less.watchTimer); return this.watchMode = false; }; - -function initRunningMode(){ - if (less.env === 'development') { - less.optimization = 0; - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (e, root, _, sheet, env) { - if (root) { - createCSS(root.toCSS(), sheet, env.lastModified); - } - }); - } - }, less.poll); - } else { - less.optimization = 3; - } -} - -if (/!watch/.test(location.hash)) { - less.watch(); -} - -var cache = null; - -if (less.env != 'development') { - try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; - } catch (_) {} -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - -// -// With this function, it's possible to alter variables and re-render -// CSS without reloading less-files -// -var session_cache = ''; -less.modifyVars = function(record) { - var str = session_cache; - for (name in record) { - str += ((name.slice(0,1) === '@')? '' : '@') + name +': '+ - ((record[name].slice(-1) === ';')? record[name] : record[name] +';'); - } - new(less.Parser)().parse(str, function (e, root) { - createCSS(root.toCSS(), less.sheets[less.sheets.length - 1]); - }); -}; - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (e, root, _, sheet, env) { - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - new(less.Parser)({ - filename: document.location.href.replace(/#.*$/, ''), - dumpLineNumbers: less.dumpLineNumbers - }).parse(styles[i].innerHTML || '', function (e, tree) { - var css = tree.toCSS(); - var style = styles[i]; - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function pathDiff(url, baseUrl) { - // diff between two paths to create a relative path - - var urlParts = extractUrlParts(url), - baseUrlParts = extractUrlParts(baseUrl), - i, max, urlDirectories, baseUrlDirectories, diff = ""; - if (urlParts.hostPart !== baseUrlParts.hostPart) { - return ""; - } - max = Math.max(baseUrlParts.directories.length, urlParts.directories.length); - for(i = 0; i < max; i++) { - if (baseUrlParts.directories[i] !== urlParts.directories[i]) { break; } - } - baseUrlDirectories = baseUrlParts.directories.slice(i); - urlDirectories = urlParts.directories.slice(i); - for(i = 0; i < baseUrlDirectories.length-1; i++) { - diff += "../"; - } - for(i = 0; i < urlDirectories.length-1; i++) { - diff += urlDirectories[i] + "/"; - } - return diff; -} - -function extractUrlParts(url, baseUrl) { - // urlParts[1] = protocol&hostname || / - // urlParts[2] = / if path relative to host base - // urlParts[3] = directories - // urlParts[4] = filename - // urlParts[5] = parameters - - var urlPartsRegex = /^((?:[a-z-]+:)?\/\/(?:[^\/\?#]*\/)|([\/\\]))?((?:[^\/\\\?#]*[\/\\])*)([^\/\\\?#]*)([#\?].*)?$/, - urlParts = url.match(urlPartsRegex), - returner = {}, directories = [], i, baseUrlParts; - - if (!urlParts) { - throw new Error("Could not parse sheet href - '"+url+"'"); - } - - // Stylesheets in IE don't always return the full path - if (!urlParts[1] || urlParts[2]) { - baseUrlParts = baseUrl.match(urlPartsRegex); - if (!baseUrlParts) { - throw new Error("Could not parse page url - '"+baseUrl+"'"); - } - urlParts[1] = baseUrlParts[1]; - if (!urlParts[2]) { - urlParts[3] = baseUrlParts[3] + urlParts[3]; - } - } - - if (urlParts[3]) { - directories = urlParts[3].replace("\\", "/").split("/"); - - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".." && i > 0) { - directories.splice(i-1, 2); - i -= 2; - } - } - } - - returner.hostPart = urlParts[1]; - returner.directories = directories; - returner.path = urlParts[1] + directories.join("/"); - returner.fileUrl = returner.path + (urlParts[4] || ""); - returner.url = returner.fileUrl + (urlParts[5] || ""); - return returner; -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - // sheet may be set to the stylesheet for the initial load or a collection of properties including - // some env variables for imports - var contents = sheet.contents || {}; - var files = sheet.files || {}; - var hrefParts = extractUrlParts(sheet.href, window.location.href); - var href = hrefParts.url; - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - var rootpath; - - if (less.relativeUrls) { - if (less.rootpath) { - if (sheet.entryPath) { - rootpath = extractUrlParts(less.rootpath + pathDiff(hrefParts.path, sheet.entryPath)).path; - } else { - rootpath = less.rootpath; - } - } else { - rootpath = hrefParts.path; - } - } else { - if (less.rootpath) { - rootpath = less.rootpath; - } else { - if (sheet.entryPath) { - rootpath = sheet.entryPath; - } else { - rootpath = hrefParts.path; - } - } - } - - xhr(href, sheet.type, function (data, lastModified) { - // Store data this session - session_cache += data.replace(/@import .+?;/ig, ''); - - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, null, data, sheet, { local: true, remaining: remaining }, href); - } else { - // Use remote copy (re-parse) - try { - contents[href] = data; // Updating top importing parser content cache - new(less.Parser)({ - optimization: less.optimization, - paths: [hrefParts.path], - entryPath: sheet.entryPath || hrefParts.path, - mime: sheet.type, - filename: href, - rootpath: rootpath, - relativeUrls: sheet.relativeUrls, - contents: contents, // Passing top importing parser content cache ref down. - files: files, - dumpLineNumbers: less.dumpLineNumbers - }).parse(data, function (e, root) { - if (e) { return error(e, href) } - try { - callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining }, href); - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } catch (e) { - error(e, href); - } - }); - } catch (e) { - error(e, href); - } - } - }, function (status, url) { - throw new(Error)("Couldn't load " + url + " (" + status + ")"); - }); -} - -function extractId(href) { - return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - var css; - - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If the stylesheet doesn't exist, create a new node - if ((css = document.getElementById(id)) === null) { - css = document.createElement('style'); - css.type = 'text/css'; - if( sheet.media ){ css.media = sheet.media; } - css.id = id; - var nextEl = sheet && sheet.nextSibling || null; - (nextEl || document.getElementsByTagName('head')[0]).parentNode.insertBefore(css, nextEl); - } - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - (function (node) { - if (css.childNodes.length > 0) { - if (css.firstChild.nodeValue !== node.nodeValue) { - css.replaceChild(node, css.firstChild); - } - } else { - css.appendChild(node); - } - })(document.createTextNode(styles)); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save'); - } - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? less.fileAsync : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - if (isFileProtocol && !less.fileAsync) { - if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new(XMLHttpRequest); - } else { - try { - return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX."); - return null; - } - } -} - -function removeNode(node) { - return node && node.parentNode.removeChild(node); -} - -function log(str) { - if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } -} - -function error(e, href) { - var id = 'less-error-message:' + extractId(href); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, error = []; - var filename = e.filename || href; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.message || 'There is an error in your .less file') + - '

    ' + '

    in ' + filenameNoPath + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i]) { - error.push(template.replace(/\{line\}/, parseInt(e.line) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.stack) { - content += '
    ' + e.stack.split('\n').slice(1).join('
    '); - } else if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - '
      ' + error.join('') + '
    '; - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #dd6666;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.line {', - 'color: #ff0000;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); 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e.localStorage=="undefined"?null:e.localStorage}catch(c){}var h=document.getElementsByTagName("link"),p=/^text\/(x-)?less$/;r.sheets=[];for(var d=0;d current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - function isWhitespace(c) { - // Could change to \s? - var code = c.charCodeAt(0); - return code === 32 || code === 10 || code === 9; - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, index, k; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - endIndex = i + chunks[j].length, - mem = i += length; - - while (i < endIndex) { - if (! isWhitespace(input.charAt(i))) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, input) { - for (var n = index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input).line + 1); - this.callExtract = lines[getLocation(e.call, input).line]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length;) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - } - } - - switch (c) { - case '{': if (! inParam) { level ++; chunk.push(c); break } - case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } - case '(': if (! inParam) { inParam = true; chunk.push(c); break } - case ')': if ( inParam) { inParam = false; chunk.push(c); break } - default: chunk.push(c); - } - - i++; - } - if (level != 0) { - error = new(LessError)({ - index: i-1, - type: 'Parse', - message: (level > 0) ? "missing closing `}`" : "missing opening `{`", - filename: env.currentFileInfo.filename - }, env); - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - if (error) { - return callback(new(LessError)(error, env)); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - options = options || {}; - var importError, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var evaldRoot = evaluate.call(this, evalEnv); - - new(tree.joinSelectorVisitor)() - .run(evaldRoot); - - new(tree.processExtendsVisitor)() - .run(evaldRoot); - - var css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits)}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('ycssmin').cssmin(css, options.maxLineLen); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - callback(e); - } - else { - callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.extendRule) || $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/) || $(/^;+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null } - else { i += name.length } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted) || - $(this.entities.unicodeDescriptor); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var name, curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) return; - - if (value = $(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - if (ud = $(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/)) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList = []; - - if (!$(isRule ? /^&:extend\(/ : /^:extend\(/)) { return; } - - do { - option = null; - elements = []; - while (true) { - option = $(/^(all)(?=\s*(\)|,))/); - if (option) { break; } - e = $(this.element); - if (!e) { break; } - elements.push(e); - } - - option = option && option[1]; - - extendList.push(new(tree.Extend)(new(tree.Selector)(elements), option, index)); - - } while($(",")) - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, delim, arg, index = i, s = input.charAt(i), important = false; - - if (s !== '.' && s !== '#') { return } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - if ($('(')) { - args = this.mixin.args.call(this, true).args; - expect(')'); - } - - args = args || []; - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - - restore(); - }, - args: function (isCall) { - var expressions = [], argsSemiColon = [], isSemiColonSeperated, argsComma = [], expressionContainsNamed, name, nameLoop, value, arg, - returner = {args:null, variadic: false}; - while (true) { - if (isCall) { - arg = $(this.expression); - } else { - $(this.comment); - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value.length == 1) { - var val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(this.expression); - nameLoop = (name = val.name); - } else if (!isCall && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($(',')) { - continue; - } - - if ($(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new (tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - var argInfo = this.mixin.args.call(this, false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - $(this.comment); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) ||$(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^()@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(')) { - if ((v = ($(this.selector))) && - $(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, i) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|') { - i++; - while (input.charAt(i).match(/\s/)) { i++ } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match, extend, extendList = []; - - while ((extend = $(this.extend)) || (e = $(this.element))) { - if (extend) { - extendList.push.apply(extendList, extend); - } else { - if (extendList.length) { - error("Extend can only be used at the end of selector"); - } - c = input.charAt(i); - elements.push(e) - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements, extendList); } - if (extendList.length) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (!(key = $(this.entities.variableCurly))) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - if ((op = $(/^[|~*$^]?=/))) { - val = $(this.entities.quoted) || $(/^[\w-]+/) || $(this.entities.variableCurly); - } - - expect(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match, debugInfo; - - save(); - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) - ruleset.debugInfo = debugInfo; - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || (name.charAt(0) === '@')) ? - ($(this.value) || $(this.anonymousValue)) : - ($(this.anonymousValue) || $(this.value)); - - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } - }, - anonymousValue: function () { - if (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j])) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import?\s+/); - - var options = (dir ? $(this.importOptions) : null) || {}; - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $('(')) { return null; } - do { - if (o = $(this.importOption)) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $(',')) { break } - } - } while (o); - expect(')'); - return options; - }, - - importOption: function() { - var opt = $(/^(less|css|multiple|once)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.value); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features); - if(env.dumpLineNumbers) - media.debugInfo = debugInfo; - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, identifier, e, nodes, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - if (!name) return; - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - name += " " + ($(/^[^{]+/) || '').trim(); - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else { - if ((value = hasExpression ? $(this.expression) : $(this.entity)) && $(';')) { - var directive = new(tree.Directive)(name, value); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($('(')) { - if (a = $(this.addition)) { - e = new(tree.Expression)([a]); - expect(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced, expression = []; - if (m = $(this.operand)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while (!peek(/^\/[*\/]/) && (op = ($('/') || $('*')))) { - if (a = $(this.operand)) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } else { - break; - } - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - if (m = $(this.multiplication)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while ((op = $(/^[-+]\s+/) || (!isSpaced && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/) && (delim = $('/'))) { - entities.push(new(tree.Anonymous)(delim)); - } - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-z0-9-]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, currentFileInfo, callback, env) { - if (!/^([a-z-]+:)?\//.test(path) && currentFileInfo.currentDirectory) { - path = currentFileInfo.currentDirectory + path; - } - var sheetEnv = env.toSheet(path); - sheetEnv.processImports = false; - sheetEnv.currentFileInfo = currentFileInfo; - - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet(sheetEnv, - function (e, root, data, sheet, _, path) { - callback.call(null, e, root, path); - }, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 256); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if ((color.luma() * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return this._math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _math: function (fn, unit, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(fn(parseFloat(n.value)), unit == null ? n.unit : unit); - } else if (typeof(n) === 'number') { - return fn(n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - - /* Blending modes */ - - multiply: function(color1, color2) { - var r = color1.rgb[0] * color2.rgb[0] / 255; - var g = color1.rgb[1] * color2.rgb[1] / 255; - var b = color1.rgb[2] * color2.rgb[2] / 255; - return this.rgb(r, g, b); - }, - screen: function(color1, color2) { - var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - overlay: function(color1, color2) { - var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - softlight: function(color1, color2) { - var t = color2.rgb[0] * color1.rgb[0] / 255; - var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255; - t = color2.rgb[1] * color1.rgb[1] / 255; - var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255; - t = color2.rgb[2] * color1.rgb[2] / 255; - var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255; - return this.rgb(r, g, b); - }, - hardlight: function(color1, color2) { - var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255; - var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255; - var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - difference: function(color1, color2) { - var r = Math.abs(color1.rgb[0] - color2.rgb[0]); - var g = Math.abs(color1.rgb[1] - color2.rgb[1]); - var b = Math.abs(color1.rgb[2] - color2.rgb[2]); - return this.rgb(r, g, b); - }, - exclusion: function(color1, color2) { - var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255; - var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255; - var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - average: function(color1, color2) { - var r = (color1.rgb[0] + color2.rgb[0]) / 2; - var g = (color1.rgb[1] + color2.rgb[1]) / 2; - var b = (color1.rgb[2] + color2.rgb[2]) / 2; - return this.rgb(r, g, b); - }, - negation: function(color1, color2) { - var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]); - var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]); - var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]); - return this.rgb(r, g, b); - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - return values.value[index]; - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require("fs"), - path = require("path"), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) mimetype += ';base64'; - } - else { - useBase64 = /;base64$/.test(mimetype) - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } else if (!this.env.silent) { - // if explicitly disabled (via --no-ie-compat on CLI, or env.ieCompat === false), merely warn - console.warn("WARNING: Embedding %s (%dKB) exceeds IE8's data-uri size limit of %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "'data:" + mimetype + ',' + buf + "'"; - return new(tree.URL)(new(tree.Anonymous)(uri)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -var mathFunctions = [{name:"ceil"}, {name:"floor"}, {name: "sqrt"}, {name:"abs"}, - {name:"tan", unit: ""}, {name:"sin", unit: ""}, {name:"cos", unit: ""}, - {name:"atan", unit: "rad"}, {name:"asin", unit: "rad"}, {name:"acos", unit: "rad"}], - createMathFunction = function(name, unit) { - return function(n) { - if (unit != null) { - n = n.unify(); - } - return this._math(Math[name], unit, n); - }; - }; - -for(var i = 0; i < mathFunctions.length; i++) { - tree.functions[mathFunctions[i].name] = createMathFunction(mathFunctions[i].name, mathFunctions[i].unit); -} - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - // 'transparent':'rgba(0,0,0,0)', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - }, - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - toCSS: function () { - return this.value; - }, - eval: function () { return this }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - this.args = visitor.visit(this.args); - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS(env); }).join(', ') + ")"); - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - type: "Color", - eval: function () { return this }, - luma: function () { return (0.2126 * this.rgb[0] / 255) + (0.7152 * this.rgb[1] / 255) + (0.0722 * this.rgb[2] / 255); }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress; - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - - if (compress) { - color = color.split(''); - - // Convert color to short format - if (color[0] == color[1] && color[2] == color[3] && color[4] == color[5]) { - color = color[0] + color[2] + color[4]; - } else { - color = color.join(''); - } - } - - return '#' + color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - type: "Comment", - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function (env) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = this.value, - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && !this.unit.isAngle()) { - return strValue; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - return strValue + this.unit.toCSS(env); - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length == 0 && unit.denominator.length == 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a = this.unify(), b = other.unify(), - aValue = a.value, bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - if (!b.unit.isEmpty() && a.unit.compare(b.unit) !== 0) { - return -1; - } - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'm', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, conversion, targetUnit, derivedConversions = {}; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(function (atomicUnit, denominator) { - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - - toCSS: function (env) { - if (this.numerator.length >= 1) { - return this.numerator[0]; - } - if (this.denominator.length >= 1) { - return this.denominator[0]; - } - if ((!env || !env.strictUnits) && this.backupUnit) { - return this.backupUnit; - } - return ""; - }, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isAngle: function () { - return tree.UnitConversions.angle.hasOwnProperty(this.toCSS()); - }, - - isEmpty: function () { - return this.numerator.length == 0 && this.denominator.length == 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length == 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, groupName, result = {}; - - for (groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(function (atomicUnit) { - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - this.ruleset = visitor.visit(this.ruleset); - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - var evaldDirective = this; - if (this.ruleset) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name); - evaldDirective.ruleset = this.ruleset.eval(env); - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - this.combinator = visitor.visit(this.combinator); - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value == '' && this.combinator.value.charAt(0) == '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - toCSS: function (env) { - return { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ', - '|' : env.compress ? '|' : ' | ' - }[this.value]; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - }, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = []; - - for(i = 0; i < selectors.length; i++) { - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - var that = this; - - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined) { - this.css = !this.options.less; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.path = visitor.visit(this.path); - this.root = visitor.visit(this.root); - }, - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - return "@import " + this.path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && !(path instanceof tree.URL)) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath + pathValue; - } - } - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { return []; } - - if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - toCSS: function () { return this.value; }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.Media = function (value, features) { - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.ruleset = new(tree.Ruleset)(selectors, value); - this.ruleset.allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.ruleset = visitor.visit(this.ruleset); - }, - toCSS: function (env) { - var features = this.features.toCSS(env); - - return '@media ' + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - }, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)([], []); - if(this.debugInfo) { - this.ruleset.debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.ruleset); - media.ruleset = this.ruleset.eval(env); - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env) - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', 0); - return [new(tree.Selector)([el])]; - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.ruleset = new(tree.Ruleset)(selectors.slice(0), [this.ruleset]); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - this.arguments = visitor.visit(this.arguments); - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - if (mixin.matchArgs(args, env)) { - if (!mixin.matchCondition || mixin.matchCondition(args, env)) { - try { - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - match = true; - } - } - if (match) { - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")`", - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - this.params = visitor.visit(this.params); - this.rules = visitor.visit(this.rules); - this.condition = visitor.visit(this.condition); - }, - toCSS: function () { return ""; }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - var frame = new(tree.Ruleset)(null, []), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.rules.unshift(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) continue; - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.rules.unshift(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - context, rules, start, ruleset; - - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.parent.makeImportant.apply(this).rules : this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules).eval(new(tree.evalEnv)(env, - [this, frame].concat(mixinFrames))); - ruleset.originalRuleset = this; - return ruleset; - }, - matchCondition: function (args, env) { - - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] - .concat(env.frames)))) { - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (! this.variadic) { - if (argsLength < this.required) { return false } - if (argsLength > this.params.length) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - return '-' + this.value.toCSS(env); - }, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { type: "Operation", - message: "Can't substract or divide a color from a number" }; - } - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - toCSS: function (env) { - var separator = this.isSpaced ? " " : ""; - return this.operands[0].toCSS() + separator + this.op + separator + this.operands[1].toCSS(); - } -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - return '(' + this.value.toCSS(env).trim() + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - if (this.variable) { return "" } - else { - try { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - } - }, - eval: function (env) { - var strictMathBypass = false; - if (this.name === "font" && env.strictMath === false) { - strictMathBypass = true; - env.strictMath = true; - } - try { - return new(tree.Rule)(this.name, - this.value.eval(env), - this.important, - this.index, this.currentFileInfo, this.inline); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.index, this.currentFileInfo, this.inline); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - this.selectors = visitor.visit(this.selectors); - this.rules = visitor.visit(this.rules); - }, - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // currrent selectors - if (!env.selectors) { - env.selectors = []; - } - env.selectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - rules = ruleset.rules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - ruleset.rules.splice.apply(ruleset.rules, [i, 1].concat(rules)); - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - env.selectors.shift(); - - if (env.mediaBlocks) { - for(var i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var i, rules; - for (i = 0; i < this.rules.length; i++) { - if (this.rules[i] instanceof tree.Import) { - rules = this.rules[i].eval(env); - if (typeof rules.length === "number") { - this.rules.splice.apply(this.rules, [i, 1].concat(rules)); - i+= rules.length-1; - } else { - this.rules.splice(i, 1, rules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - return this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - _rules = [], // - rulesets = [], // node.Ruleset instances - selector, // The fully rendered selector - debugInfo, // Line number debugging - rule; - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Media)) { - rulesets.push(rule.toCSS(env)); - } else if (rule instanceof tree.Directive) { - var cssValue = rule.toCSS(env); - // Output only the first @charset definition as such - convert the others - // to comments in case debug is enabled - if (rule.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (env.charset) { - if (rule.debugInfo) { - rulesets.push(tree.debugInfo(env, rule)); - rulesets.push(new tree.Comment("/* "+cssValue.replace(/\n/g, "")+" */\n").toCSS(env)); - } - continue; - } - env.charset = true; - } - rulesets.push(cssValue); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - if (this.firstRoot && rule instanceof tree.Rule) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: rule.index, filename: rule.currentFileInfo ? rule.currentFileInfo.filename : null}; - } - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - // Remove last semicolon - if (env.compress && rules.length) { - rule = rules[rules.length - 1]; - if (rule.charAt(rule.length - 1) === ';') { - rules[rules.length - 1] = rule.substring(0, rule.length - 1); - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - debugInfo = tree.debugInfo(env, this); - selector = this.paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : ',\n'); - - // Remove duplicates - for (var i = rules.length - 1; i >= 0; i--) { - if (rules[i].slice(0, 2) === "/*" || _rules.indexOf(rules[i]) === -1) { - _rules.unshift(rules[i]); - } - } - rules = _rules; - - css.push(debugInfo + selector + - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for(i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for(j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length == 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0)); //new Element(el.Combinator, "")); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for(k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = new(tree.Selector)(lastSelector.elements.slice(0), selector.extendList); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = new(tree.Selector)([], selector.extendList); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, 0)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for(i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel, extendList; - - if (selectors.length == 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for(i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = new(tree.Selector)(sel[sel.length - 1].elements.concat(elements), sel[sel.length - 1].extendList); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements, extendList) { - this.elements = elements; - this.extendList = extendList || []; -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - this.elements = visitor.visit(this.elements); - this.extendList = visitor.visit(this.extendList) - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, max, i; - - oelements = other.elements.slice( - (other.elements.length && other.elements[0].value === "&") ? 1 : 0); - olen = oelements.length; - max = Math.min(len, olen); - - if (olen === 0 || len < olen) { - return false; - } else { - for (i = 0; i < max; i++) { - if (elements[i].value !== oelements[i].value) { - return false; - } - } - } - return true; - }, - eval: function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - }), this.extendList.map(function(extend) { - return extend.eval(env); - })); - }, - toCSS: function (env) { - if (this._css) { return this._css } - - if (this.elements[0].combinator.value === "") { - this._css = ' '; - } else { - this._css = ''; - } - - this._css += this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); - - return this._css; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, currentFileInfo) { - this.value = val; - this.currentFileInfo = currentFileInfo; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function () { - return "url(" + this.value.toCSS() + ")"; - }, - eval: function (ctx) { - var val = this.value.eval(ctx), rootpath; - - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - return new(tree.URL)(val, null); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { this.name = name, this.index = index, this.currentFileInfo = currentFileInfo }; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { - this.evaluating = false; - return variable; - } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.debugInfo = function(env, ctx) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx)+tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:/\\])/g, function(a){if(a=='\\') a = '\/'; return '\\' + a}) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // browser-only, contents of all the files - 'relativeUrls', // option - whether to adjust URL's to be relative - 'strictImports', // option - - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'mime', // browser only - mime type for sheet import - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' = absolute path to the entry file - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = options.filename || "input"; - options.filename = null; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: options.rootpath || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - tree.parseEnv.prototype.toSheet = function (path) { - var env = new tree.parseEnv(this); - env.href = path; - //env.title = path; - env.type = this.mime; - return env; - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits' // whether units need to evaluate correctly - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - } -})(require('./tree'));(function (tree) { - - tree.visitor = function(implementation) { - this._implementation = implementation; - }; - - tree.visitor.prototype = { - visit: function(node) { - - if (node instanceof Array) { - return this.visitArray(node); - } - - if (!node || !node.type) { - return node; - } - - var funcName = "visit" + node.type, - func = this._implementation[funcName], - visitArgs, newNode; - if (func) { - visitArgs = {visitDeeper: true}; - newNode = func.call(this._implementation, node, visitArgs); - if (this._implementation.isReplacing) { - node = newNode; - } - } - if ((!visitArgs || visitArgs.visitDeeper) && node && node.accept) { - node.accept(this); - } - funcName = funcName + "Out"; - if (this._implementation[funcName]) { - this._implementation[funcName](node); - } - return node; - }, - visitArray: function(nodes) { - var i, newNodes = []; - for(i = 0; i < nodes.length; i++) { - var evald = this.visit(nodes[i]); - if (evald instanceof Array) { - newNodes = newNodes.concat(evald); - } else { - newNodes.push(evald); - } - } - if (this._implementation.isReplacing) { - return newNodes; - } - return nodes; - } - }; - -})(require('./tree'));(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode; - - if (!importNode.css) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && !evaldImportNode.css) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - this._importer.push(importNode.getPath(), importNode.currentFileInfo, function (e, root, imported) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - if (imported && !importNode.options.multiple) { importNode.skip = imported; } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - new(tree.importVisitor)(importVisitor._importer, subFinish, env) - .run(root); - } else { - subFinish(); - } - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree'));(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - var paths = []; - this.contexts.push(paths); - - if (! rulesetNode.root) { - rulesetNode.joinSelectors(paths, context, rulesetNode.selectors); - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.ruleset.root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree'));(function (tree) { - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - for(i = 0; i < rulesetNode.rules.length; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rulesetNode.rules[i]); - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - for(i = 0; i < rulesetNode.paths.length; i++) { - var selectorPath = rulesetNode.paths[i], - selector = selectorPath[selectorPath.length-1]; - extendList = selector.extendList.slice(0).concat(allSelectorsExtendList).map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if (this.inInheritanceChain(targetExtend, extend)) { continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parents = [targetExtend, extend]; - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - inInheritanceChain: function (possibleParent, possibleChild) { - if (possibleParent === possibleChild) { - return true; - } - if (possibleChild.parents) { - if (this.inInheritanceChain(possibleParent, possibleChild.parents[0])) { - return true; - } - if (this.inInheritanceChain(possibleParent, possibleChild.parents[1])) { - return true; - } - } - return false; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (selectorPath[selectorPath.length-1].extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex == 0 && hackstackElementIndex == 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator == '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - return false; - }, - extendSelector:function (matches, selectorPath, replacementSelector) { - - //for a set of matches, replace each match with the replacement selector - - var currentSelectorPathIndex = 0, - currentSelectorPathElementIndex = 0, - path = [], - matchIndex, - selector, - firstElement; - - for (matchIndex = 0; matchIndex < matches.length; matchIndex++) { - match = matches[matchIndex]; - selector = selectorPath[match.pathIndex]; - firstElement = new tree.Element( - match.initialCombinator, - replacementSelector.elements[0].value, - replacementSelector.elements[0].index - ); - - if (match.pathIndex > currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)) - )); - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selector.elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree'));// -// browser.js - client-side engine -// - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - less.tree.functions[func] = less.functions[func]; - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -// -// Watch mode -// -less.watch = function () { - if (!less.watchMode ){ - less.env = 'development'; - initRunningMode(); - } - return this.watchMode = true -}; - -less.unwatch = function () {clearInterval(less.watchTimer); return this.watchMode = false; }; - -function initRunningMode(){ - if (less.env === 'development') { - less.optimization = 0; - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (e, root, _, sheet, env) { - if (e) { - error(e, sheet.href); - } else if (root) { - createCSS(root.toCSS(less), sheet, env.lastModified); - } - }); - } - }, less.poll); - } else { - less.optimization = 3; - } -} - -if (/!watch/.test(location.hash)) { - less.watch(); -} - -var cache = null; - -if (less.env != 'development') { - try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; - } catch (_) {} -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - -// -// With this function, it's possible to alter variables and re-render -// CSS without reloading less-files -// -var session_cache = ''; -less.modifyVars = function(record) { - var str = session_cache; - for (name in record) { - str += ((name.slice(0,1) === '@')? '' : '@') + name +': '+ - ((record[name].slice(-1) === ';')? record[name] : record[name] +';'); - } - new(less.Parser)(new less.tree.parseEnv(less)).parse(str, function (e, root) { - if (e) { - error(e, "session_cache"); - } else { - createCSS(root.toCSS(less), less.sheets[less.sheets.length - 1]); - } - }); -}; - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (e, root, _, sheet, env) { - if (e) { - return error(e, sheet.href); - } - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(less), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - var env = new less.tree.parseEnv(less); - env.filename = document.location.href.replace(/#.*$/, ''); - - new(less.Parser)(env).parse(styles[i].innerHTML || '', function (e, cssAST) { - if (e) { - return error(e, "inline"); - } - var css = cssAST.toCSS(less); - var style = styles[i]; - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function pathDiff(url, baseUrl) { - // diff between two paths to create a relative path - - var urlParts = extractUrlParts(url), - baseUrlParts = extractUrlParts(baseUrl), - i, max, urlDirectories, baseUrlDirectories, diff = ""; - if (urlParts.hostPart !== baseUrlParts.hostPart) { - return ""; - } - max = Math.max(baseUrlParts.directories.length, urlParts.directories.length); - for(i = 0; i < max; i++) { - if (baseUrlParts.directories[i] !== urlParts.directories[i]) { break; } - } - baseUrlDirectories = baseUrlParts.directories.slice(i); - urlDirectories = urlParts.directories.slice(i); - for(i = 0; i < baseUrlDirectories.length-1; i++) { - diff += "../"; - } - for(i = 0; i < urlDirectories.length-1; i++) { - diff += urlDirectories[i] + "/"; - } - return diff; -} - -function extractUrlParts(url, baseUrl) { - // urlParts[1] = protocol&hostname || / - // urlParts[2] = / if path relative to host base - // urlParts[3] = directories - // urlParts[4] = filename - // urlParts[5] = parameters - - var urlPartsRegex = /^((?:[a-z-]+:)?\/+?(?:[^\/\?#]*\/)|([\/\\]))?((?:[^\/\\\?#]*[\/\\])*)([^\/\\\?#]*)([#\?].*)?$/, - urlParts = url.match(urlPartsRegex), - returner = {}, directories = [], i, baseUrlParts; - - if (!urlParts) { - throw new Error("Could not parse sheet href - '"+url+"'"); - } - - // Stylesheets in IE don't always return the full path - if (!urlParts[1] || urlParts[2]) { - baseUrlParts = baseUrl.match(urlPartsRegex); - if (!baseUrlParts) { - throw new Error("Could not parse page url - '"+baseUrl+"'"); - } - urlParts[1] = urlParts[1] || baseUrlParts[1] || ""; - if (!urlParts[2]) { - urlParts[3] = baseUrlParts[3] + urlParts[3]; - } - } - - if (urlParts[3]) { - directories = urlParts[3].replace("\\", "/").split("/"); - - // extract out . before .. so .. doesn't absorb a non-directory - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".") { - directories.splice(i, 1); - i -= 1; - } - } - - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".." && i > 0) { - directories.splice(i-1, 2); - i -= 2; - } - } - } - - returner.hostPart = urlParts[1]; - returner.directories = directories; - returner.path = urlParts[1] + directories.join("/"); - returner.fileUrl = returner.path + (urlParts[4] || ""); - returner.url = returner.fileUrl + (urlParts[5] || ""); - return returner; -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - - // sheet may be set to the stylesheet for the initial load or a collection of properties including - // some env variables for imports - var hrefParts = extractUrlParts(sheet.href, window.location.href); - var href = hrefParts.url; - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - var env; - var newFileInfo = { - relativeUrls: less.relativeUrls, - currentDirectory: hrefParts.path, - filename: href - }; - - if (sheet instanceof less.tree.parseEnv) { - env = new less.tree.parseEnv(sheet); - newFileInfo.entryPath = env.currentFileInfo.entryPath; - newFileInfo.rootpath = env.currentFileInfo.rootpath; - newFileInfo.rootFilename = env.currentFileInfo.rootFilename; - } else { - env = new less.tree.parseEnv(less); - env.mime = sheet.type; - newFileInfo.entryPath = hrefParts.path; - newFileInfo.rootpath = less.rootpath || hrefParts.path; - newFileInfo.rootFilename = href; - } - - if (env.relativeUrls) { - //todo - this relies on option being set on less object rather than being passed in as an option - // - need an originalRootpath - if (less.rootpath) { - newFileInfo.rootpath = extractUrlParts(less.rootpath + pathDiff(hrefParts.path, newFileInfo.entryPath)).path; - } else { - newFileInfo.rootpath = hrefParts.path; - } - } - - xhr(href, sheet.type, function (data, lastModified) { - // Store data this session - session_cache += data.replace(/@import .+?;/ig, ''); - - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, null, data, sheet, { local: true, remaining: remaining }, href); - } else { - // Use remote copy (re-parse) - try { - env.contents[href] = data; // Updating content cache - env.paths = [hrefParts.path]; - env.currentFileInfo = newFileInfo; - - new(less.Parser)(env).parse(data, function (e, root) { - if (e) { return callback(e, null, null, sheet); } - try { - callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining }, href); - //TODO - there must be a better way? A generic less-to-css function that can both call error - //and removeNode where appropriate - //should also add tests - if (env.currentFileInfo.rootFilename === href) { - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } - } catch (e) { - callback(e, null, null, sheet); - } - }); - } catch (e) { - callback(e, null, null, sheet); - } - } - }, function (status, url) { - callback({ type: 'File', message: "'" + url + "' wasn't found (" + status + ")" }, null, null, sheet); - }); -} - -function extractId(href) { - return href.replace(/^[a-z-]+:\/+?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If this has already been inserted into the DOM, we may need to replace it - var oldCss = document.getElementById(id); - var keepOldCss = false; - - // Create a new stylesheet node for insertion or (if necessary) replacement - var css = document.createElement('style'); - css.setAttribute('type', 'text/css'); - if (sheet.media) { - css.setAttribute('media', sheet.media); - } - css.id = id; - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - css.appendChild(document.createTextNode(styles)); - - // If new contents match contents of oldCss, don't replace oldCss - keepOldCss = (oldCss !== null && oldCss.childNodes.length > 0 && css.childNodes.length > 0 && - oldCss.firstChild.nodeValue === css.firstChild.nodeValue); - } - - var head = document.getElementsByTagName('head')[0]; - - // If there is no oldCss, just append; otherwise, only append if we need - // to replace oldCss with an updated stylesheet - if (oldCss == null || keepOldCss === false) { - var nextEl = sheet && sheet.nextSibling || null; - (nextEl || document.getElementsByTagName('head')[0]).parentNode.insertBefore(css, nextEl); - } - if (oldCss && keepOldCss === false) { - head.removeChild(oldCss); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save'); - } - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? less.fileAsync : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - if (isFileProtocol && !less.fileAsync) { - if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new(XMLHttpRequest); - } else { - try { - return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX."); - return null; - } - } -} - -function removeNode(node) { - return node && node.parentNode.removeChild(node); -} - -function log(str) { - if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } -} - -function error(e, rootHref) { - var id = 'less-error-message:' + extractId(rootHref || ""); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, error = []; - var filename = e.filename || rootHref; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - '

    ' + '

    in ' + filenameNoPath + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] != undefined) { - error.push(template.replace(/\{line\}/, (parseInt(e.line) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - '
      ' + error.join('') + '
    '; - } else if (e.stack) { - content += '
    ' + e.stack.split('\n').slice(1).join('
    '); - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #dd6666;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.line {', - 'color: #ff0000;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); 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(input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input).line + 1); - this.callExtract = lines[getLocation(e.call, input).line]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length;) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - } - } - - switch (c) { - case '{': if (! inParam) { level ++; chunk.push(c); break } - case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } - case '(': if (! inParam) { inParam = true; chunk.push(c); break } - case ')': if ( inParam) { inParam = false; chunk.push(c); break } - default: chunk.push(c); - } - - i++; - } - if (level != 0) { - error = new(LessError)({ - index: i-1, - type: 'Parse', - message: (level > 0) ? "missing closing `}`" : "missing opening `{`", - filename: env.currentFileInfo.filename - }, env); - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - if (error) { - return callback(new(LessError)(error, env)); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - options = options || {}; - var importError, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var evaldRoot = evaluate.call(this, evalEnv); - - new(tree.joinSelectorVisitor)() - .run(evaldRoot); - - new(tree.processExtendsVisitor)() - .run(evaldRoot); - - var css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits)}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('ycssmin').cssmin(css, options.maxLineLen); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - callback(e); - } - else { - callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.extendRule) || $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/) || $(/^;+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null } - else { i += name.length } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted) || - $(this.entities.unicodeDescriptor); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var name, curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) return; - - if (value = $(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - if (ud = $(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/)) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList = []; - - if (!$(isRule ? /^&:extend\(/ : /^:extend\(/)) { return; } - - do { - option = null; - elements = []; - while (true) { - option = $(/^(all)(?=\s*(\)|,))/); - if (option) { break; } - e = $(this.element); - if (!e) { break; } - elements.push(e); - } - - option = option && option[1]; - - extendList.push(new(tree.Extend)(new(tree.Selector)(elements), option, index)); - - } while($(",")) - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, delim, arg, index = i, s = input.charAt(i), important = false; - - if (s !== '.' && s !== '#') { return } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - if ($('(')) { - args = this.mixin.args.call(this, true).args; - expect(')'); - } - - args = args || []; - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - - restore(); - }, - args: function (isCall) { - var expressions = [], argsSemiColon = [], isSemiColonSeperated, argsComma = [], expressionContainsNamed, name, nameLoop, value, arg, - returner = {args:null, variadic: false}; - while (true) { - if (isCall) { - arg = $(this.expression); - } else { - $(this.comment); - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value.length == 1) { - var val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(this.expression); - nameLoop = (name = val.name); - } else if (!isCall && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($(',')) { - continue; - } - - if ($(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new (tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - var argInfo = this.mixin.args.call(this, false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - $(this.comment); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) ||$(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^()@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(')) { - if ((v = ($(this.selector))) && - $(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, i) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|') { - i++; - while (input.charAt(i).match(/\s/)) { i++ } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match, extend, extendList = []; - - while ((extend = $(this.extend)) || (e = $(this.element))) { - if (extend) { - extendList.push.apply(extendList, extend); - } else { - if (extendList.length) { - error("Extend can only be used at the end of selector"); - } - c = input.charAt(i); - elements.push(e) - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements, extendList); } - if (extendList.length) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (!(key = $(this.entities.variableCurly))) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - if ((op = $(/^[|~*$^]?=/))) { - val = $(this.entities.quoted) || $(/^[\w-]+/) || $(this.entities.variableCurly); - } - - expect(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match, debugInfo; - - save(); - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) - ruleset.debugInfo = debugInfo; - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || (name.charAt(0) === '@')) ? - ($(this.value) || $(this.anonymousValue)) : - ($(this.anonymousValue) || $(this.value)); - - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } - }, - anonymousValue: function () { - if (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j])) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import?\s+/); - - var options = (dir ? $(this.importOptions) : null) || {}; - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $('(')) { return null; } - do { - if (o = $(this.importOption)) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $(',')) { break } - } - } while (o); - expect(')'); - return options; - }, - - importOption: function() { - var opt = $(/^(less|css|multiple|once)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.value); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features); - if(env.dumpLineNumbers) - media.debugInfo = debugInfo; - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, identifier, e, nodes, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - if (!name) return; - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - name += " " + ($(/^[^{]+/) || '').trim(); - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else { - if ((value = hasExpression ? $(this.expression) : $(this.entity)) && $(';')) { - var directive = new(tree.Directive)(name, value); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($('(')) { - if (a = $(this.addition)) { - e = new(tree.Expression)([a]); - expect(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced, expression = []; - if (m = $(this.operand)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while (!peek(/^\/[*\/]/) && (op = ($('/') || $('*')))) { - if (a = $(this.operand)) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } else { - break; - } - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - if (m = $(this.multiplication)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while ((op = $(/^[-+]\s+/) || (!isSpaced && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/) && (delim = $('/'))) { - entities.push(new(tree.Anonymous)(delim)); - } - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-z0-9-]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, currentFileInfo, callback, env) { - if (!/^([a-z-]+:)?\//.test(path) && currentFileInfo.currentDirectory) { - path = currentFileInfo.currentDirectory + path; - } - var sheetEnv = env.toSheet(path); - sheetEnv.processImports = false; - sheetEnv.currentFileInfo = currentFileInfo; - - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet(sheetEnv, - function (e, root, data, sheet, _, path) { - callback.call(null, e, root, path); - }, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 256); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if ((color.luma() * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return this._math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _math: function (fn, unit, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(fn(parseFloat(n.value)), unit == null ? n.unit : unit); - } else if (typeof(n) === 'number') { - return fn(n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - - /* Blending modes */ - - multiply: function(color1, color2) { - var r = color1.rgb[0] * color2.rgb[0] / 255; - var g = color1.rgb[1] * color2.rgb[1] / 255; - var b = color1.rgb[2] * color2.rgb[2] / 255; - return this.rgb(r, g, b); - }, - screen: function(color1, color2) { - var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - overlay: function(color1, color2) { - var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - softlight: function(color1, color2) { - var t = color2.rgb[0] * color1.rgb[0] / 255; - var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255; - t = color2.rgb[1] * color1.rgb[1] / 255; - var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255; - t = color2.rgb[2] * color1.rgb[2] / 255; - var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255; - return this.rgb(r, g, b); - }, - hardlight: function(color1, color2) { - var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255; - var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255; - var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - difference: function(color1, color2) { - var r = Math.abs(color1.rgb[0] - color2.rgb[0]); - var g = Math.abs(color1.rgb[1] - color2.rgb[1]); - var b = Math.abs(color1.rgb[2] - color2.rgb[2]); - return this.rgb(r, g, b); - }, - exclusion: function(color1, color2) { - var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255; - var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255; - var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - average: function(color1, color2) { - var r = (color1.rgb[0] + color2.rgb[0]) / 2; - var g = (color1.rgb[1] + color2.rgb[1]) / 2; - var b = (color1.rgb[2] + color2.rgb[2]) / 2; - return this.rgb(r, g, b); - }, - negation: function(color1, color2) { - var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]); - var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]); - var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]); - return this.rgb(r, g, b); - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - return values.value[index]; - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require("fs"), - path = require("path"), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) mimetype += ';base64'; - } - else { - useBase64 = /;base64$/.test(mimetype) - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } else if (!this.env.silent) { - // if explicitly disabled (via --no-ie-compat on CLI, or env.ieCompat === false), merely warn - console.warn("WARNING: Embedding %s (%dKB) exceeds IE8's data-uri size limit of %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "'data:" + mimetype + ',' + buf + "'"; - return new(tree.URL)(new(tree.Anonymous)(uri)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -var mathFunctions = [{name:"ceil"}, {name:"floor"}, {name: "sqrt"}, {name:"abs"}, - {name:"tan", unit: ""}, {name:"sin", unit: ""}, {name:"cos", unit: ""}, - {name:"atan", unit: "rad"}, {name:"asin", unit: "rad"}, {name:"acos", unit: "rad"}], - createMathFunction = function(name, unit) { - return function(n) { - if (unit != null) { - n = n.unify(); - } - return this._math(Math[name], unit, n); - }; - }; - -for(var i = 0; i < mathFunctions.length; i++) { - tree.functions[mathFunctions[i].name] = createMathFunction(mathFunctions[i].name, mathFunctions[i].unit); -} - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - // 'transparent':'rgba(0,0,0,0)', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - }, - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - toCSS: function () { - return this.value; - }, - eval: function () { return this }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - this.args = visitor.visit(this.args); - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS(env); }).join(', ') + ")"); - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - type: "Color", - eval: function () { return this }, - luma: function () { return (0.2126 * this.rgb[0] / 255) + (0.7152 * this.rgb[1] / 255) + (0.0722 * this.rgb[2] / 255); }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress; - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - - if (compress) { - color = color.split(''); - - // Convert color to short format - if (color[0] == color[1] && color[2] == color[3] && color[4] == color[5]) { - color = color[0] + color[2] + color[4]; - } else { - color = color.join(''); - } - } - - return '#' + color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - type: "Comment", - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function (env) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = this.value, - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && !this.unit.isAngle()) { - return strValue; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - return strValue + this.unit.toCSS(env); - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length == 0 && unit.denominator.length == 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a = this.unify(), b = other.unify(), - aValue = a.value, bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - if (!b.unit.isEmpty() && a.unit.compare(b.unit) !== 0) { - return -1; - } - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'm', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, conversion, targetUnit, derivedConversions = {}; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(function (atomicUnit, denominator) { - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - - toCSS: function (env) { - if (this.numerator.length >= 1) { - return this.numerator[0]; - } - if (this.denominator.length >= 1) { - return this.denominator[0]; - } - if ((!env || !env.strictUnits) && this.backupUnit) { - return this.backupUnit; - } - return ""; - }, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isAngle: function () { - return tree.UnitConversions.angle.hasOwnProperty(this.toCSS()); - }, - - isEmpty: function () { - return this.numerator.length == 0 && this.denominator.length == 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length == 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, groupName, result = {}; - - for (groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(function (atomicUnit) { - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - this.ruleset = visitor.visit(this.ruleset); - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - var evaldDirective = this; - if (this.ruleset) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name); - evaldDirective.ruleset = this.ruleset.eval(env); - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - this.combinator = visitor.visit(this.combinator); - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value == '' && this.combinator.value.charAt(0) == '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - toCSS: function (env) { - return { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ', - '|' : env.compress ? '|' : ' | ' - }[this.value]; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - }, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = []; - - for(i = 0; i < selectors.length; i++) { - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - var that = this; - - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined) { - this.css = !this.options.less; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.path = visitor.visit(this.path); - this.root = visitor.visit(this.root); - }, - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - return "@import " + this.path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && !(path instanceof tree.URL)) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath + pathValue; - } - } - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { return []; } - - if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - toCSS: function () { return this.value; }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.Media = function (value, features) { - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.ruleset = new(tree.Ruleset)(selectors, value); - this.ruleset.allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.ruleset = visitor.visit(this.ruleset); - }, - toCSS: function (env) { - var features = this.features.toCSS(env); - - return '@media ' + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - }, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)([], []); - if(this.debugInfo) { - this.ruleset.debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.ruleset); - media.ruleset = this.ruleset.eval(env); - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env) - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', 0); - return [new(tree.Selector)([el])]; - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.ruleset = new(tree.Ruleset)(selectors.slice(0), [this.ruleset]); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - this.arguments = visitor.visit(this.arguments); - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - if (mixin.matchArgs(args, env)) { - if (!mixin.matchCondition || mixin.matchCondition(args, env)) { - try { - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - match = true; - } - } - if (match) { - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")`", - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - this.params = visitor.visit(this.params); - this.rules = visitor.visit(this.rules); - this.condition = visitor.visit(this.condition); - }, - toCSS: function () { return ""; }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - var frame = new(tree.Ruleset)(null, []), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.rules.unshift(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) continue; - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.rules.unshift(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - context, rules, start, ruleset; - - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.parent.makeImportant.apply(this).rules : this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules).eval(new(tree.evalEnv)(env, - [this, frame].concat(mixinFrames))); - ruleset.originalRuleset = this; - return ruleset; - }, - matchCondition: function (args, env) { - - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] - .concat(env.frames)))) { - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (! this.variadic) { - if (argsLength < this.required) { return false } - if (argsLength > this.params.length) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - return '-' + this.value.toCSS(env); - }, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { type: "Operation", - message: "Can't substract or divide a color from a number" }; - } - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - toCSS: function (env) { - var separator = this.isSpaced ? " " : ""; - return this.operands[0].toCSS() + separator + this.op + separator + this.operands[1].toCSS(); - } -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - return '(' + this.value.toCSS(env).trim() + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - if (this.variable) { return "" } - else { - try { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - } - }, - eval: function (env) { - var strictMathBypass = false; - if (this.name === "font" && env.strictMath === false) { - strictMathBypass = true; - env.strictMath = true; - } - try { - return new(tree.Rule)(this.name, - this.value.eval(env), - this.important, - this.index, this.currentFileInfo, this.inline); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.index, this.currentFileInfo, this.inline); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - this.selectors = visitor.visit(this.selectors); - this.rules = visitor.visit(this.rules); - }, - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // currrent selectors - if (!env.selectors) { - env.selectors = []; - } - env.selectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - rules = ruleset.rules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - ruleset.rules.splice.apply(ruleset.rules, [i, 1].concat(rules)); - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - env.selectors.shift(); - - if (env.mediaBlocks) { - for(var i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var i, rules; - for (i = 0; i < this.rules.length; i++) { - if (this.rules[i] instanceof tree.Import) { - rules = this.rules[i].eval(env); - if (typeof rules.length === "number") { - this.rules.splice.apply(this.rules, [i, 1].concat(rules)); - i+= rules.length-1; - } else { - this.rules.splice(i, 1, rules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - return this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - _rules = [], // - rulesets = [], // node.Ruleset instances - selector, // The fully rendered selector - debugInfo, // Line number debugging - rule; - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Media)) { - rulesets.push(rule.toCSS(env)); - } else if (rule instanceof tree.Directive) { - var cssValue = rule.toCSS(env); - // Output only the first @charset definition as such - convert the others - // to comments in case debug is enabled - if (rule.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (env.charset) { - if (rule.debugInfo) { - rulesets.push(tree.debugInfo(env, rule)); - rulesets.push(new tree.Comment("/* "+cssValue.replace(/\n/g, "")+" */\n").toCSS(env)); - } - continue; - } - env.charset = true; - } - rulesets.push(cssValue); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - if (this.firstRoot && rule instanceof tree.Rule) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: rule.index, filename: rule.currentFileInfo ? rule.currentFileInfo.filename : null}; - } - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - // Remove last semicolon - if (env.compress && rules.length) { - rule = rules[rules.length - 1]; - if (rule.charAt(rule.length - 1) === ';') { - rules[rules.length - 1] = rule.substring(0, rule.length - 1); - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - debugInfo = tree.debugInfo(env, this); - selector = this.paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : ',\n'); - - // Remove duplicates - for (var i = rules.length - 1; i >= 0; i--) { - if (rules[i].slice(0, 2) === "/*" || _rules.indexOf(rules[i]) === -1) { - _rules.unshift(rules[i]); - } - } - rules = _rules; - - css.push(debugInfo + selector + - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for(i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for(j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length == 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0)); //new Element(el.Combinator, "")); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for(k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = new(tree.Selector)(lastSelector.elements.slice(0), selector.extendList); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = new(tree.Selector)([], selector.extendList); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, 0)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for(i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel, extendList; - - if (selectors.length == 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for(i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = new(tree.Selector)(sel[sel.length - 1].elements.concat(elements), sel[sel.length - 1].extendList); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements, extendList) { - this.elements = elements; - this.extendList = extendList || []; -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - this.elements = visitor.visit(this.elements); - this.extendList = visitor.visit(this.extendList) - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, max, i; - - oelements = other.elements.slice( - (other.elements.length && other.elements[0].value === "&") ? 1 : 0); - olen = oelements.length; - max = Math.min(len, olen); - - if (olen === 0 || len < olen) { - return false; - } else { - for (i = 0; i < max; i++) { - if (elements[i].value !== oelements[i].value) { - return false; - } - } - } - return true; - }, - eval: function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - }), this.extendList.map(function(extend) { - return extend.eval(env); - })); - }, - toCSS: function (env) { - if (this._css) { return this._css } - - if (this.elements[0].combinator.value === "") { - this._css = ' '; - } else { - this._css = ''; - } - - this._css += this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); - - return this._css; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, currentFileInfo) { - this.value = val; - this.currentFileInfo = currentFileInfo; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function () { - return "url(" + this.value.toCSS() + ")"; - }, - eval: function (ctx) { - var val = this.value.eval(ctx), rootpath; - - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - return new(tree.URL)(val, null); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { this.name = name, this.index = index, this.currentFileInfo = currentFileInfo }; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { - this.evaluating = false; - return variable; - } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.debugInfo = function(env, ctx) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx)+tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:/\\])/g, function(a){if(a=='\\') a = '\/'; return '\\' + a}) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // browser-only, contents of all the files - 'relativeUrls', // option - whether to adjust URL's to be relative - 'strictImports', // option - - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'mime', // browser only - mime type for sheet import - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' = absolute path to the entry file - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = options.filename || "input"; - options.filename = null; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: options.rootpath || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - tree.parseEnv.prototype.toSheet = function (path) { - var env = new tree.parseEnv(this); - env.href = path; - //env.title = path; - env.type = this.mime; - return env; - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits' // whether units need to evaluate correctly - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - } -})(require('./tree'));(function (tree) { - - tree.visitor = function(implementation) { - this._implementation = implementation; - }; - - tree.visitor.prototype = { - visit: function(node) { - - if (node instanceof Array) { - return this.visitArray(node); - } - - if (!node || !node.type) { - return node; - } - - var funcName = "visit" + node.type, - func = this._implementation[funcName], - visitArgs, newNode; - if (func) { - visitArgs = {visitDeeper: true}; - newNode = func.call(this._implementation, node, visitArgs); - if (this._implementation.isReplacing) { - node = newNode; - } - } - if ((!visitArgs || visitArgs.visitDeeper) && node && node.accept) { - node.accept(this); - } - funcName = funcName + "Out"; - if (this._implementation[funcName]) { - this._implementation[funcName](node); - } - return node; - }, - visitArray: function(nodes) { - var i, newNodes = []; - for(i = 0; i < nodes.length; i++) { - var evald = this.visit(nodes[i]); - if (evald instanceof Array) { - newNodes = newNodes.concat(evald); - } else { - newNodes.push(evald); - } - } - if (this._implementation.isReplacing) { - return newNodes; - } - return nodes; - } - }; - -})(require('./tree'));(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode; - - if (!importNode.css) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && !evaldImportNode.css) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - this._importer.push(importNode.getPath(), importNode.currentFileInfo, function (e, root, imported) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - if (imported && !importNode.options.multiple) { importNode.skip = imported; } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - new(tree.importVisitor)(importVisitor._importer, subFinish, env) - .run(root); - } else { - subFinish(); - } - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree'));(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - var paths = []; - this.contexts.push(paths); - - if (! rulesetNode.root) { - rulesetNode.joinSelectors(paths, context, rulesetNode.selectors); - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.ruleset.root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree'));(function (tree) { - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - for(i = 0; i < rulesetNode.rules.length; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rulesetNode.rules[i]); - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - for(i = 0; i < rulesetNode.paths.length; i++) { - var selectorPath = rulesetNode.paths[i], - selector = selectorPath[selectorPath.length-1]; - extendList = selector.extendList.slice(0).concat(allSelectorsExtendList).map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if (this.inInheritanceChain(targetExtend, extend)) { continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parents = [targetExtend, extend]; - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - inInheritanceChain: function (possibleParent, possibleChild) { - if (possibleParent === possibleChild) { - return true; - } - if (possibleChild.parents) { - if (this.inInheritanceChain(possibleParent, possibleChild.parents[0])) { - return true; - } - if (this.inInheritanceChain(possibleParent, possibleChild.parents[1])) { - return true; - } - } - return false; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (selectorPath[selectorPath.length-1].extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex == 0 && hackstackElementIndex == 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator == '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - return false; - }, - extendSelector:function (matches, selectorPath, replacementSelector) { - - //for a set of matches, replace each match with the replacement selector - - var currentSelectorPathIndex = 0, - currentSelectorPathElementIndex = 0, - path = [], - matchIndex, - selector, - firstElement; - - for (matchIndex = 0; matchIndex < matches.length; matchIndex++) { - match = matches[matchIndex]; - selector = selectorPath[match.pathIndex]; - firstElement = new tree.Element( - match.initialCombinator, - replacementSelector.elements[0].value, - replacementSelector.elements[0].index - ); - - if (match.pathIndex > currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)) - )); - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selector.elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree'));// -// browser.js - client-side engine -// - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - less.tree.functions[func] = less.functions[func]; - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -// -// Watch mode -// -less.watch = function () { - if (!less.watchMode ){ - less.env = 'development'; - initRunningMode(); - } - return this.watchMode = true -}; - -less.unwatch = function () {clearInterval(less.watchTimer); return this.watchMode = false; }; - -function initRunningMode(){ - if (less.env === 'development') { - less.optimization = 0; - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (e, root, _, sheet, env) { - if (e) { - error(e, sheet.href); - } else if (root) { - createCSS(root.toCSS(less), sheet, env.lastModified); - } - }); - } - }, less.poll); - } else { - less.optimization = 3; - } -} - -if (/!watch/.test(location.hash)) { - less.watch(); -} - -var cache = null; - -if (less.env != 'development') { - try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; - } catch (_) {} -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - -// -// With this function, it's possible to alter variables and re-render -// CSS without reloading less-files -// -var session_cache = ''; -less.modifyVars = function(record) { - var str = session_cache; - for (name in record) { - str += ((name.slice(0,1) === '@')? '' : '@') + name +': '+ - ((record[name].slice(-1) === ';')? record[name] : record[name] +';'); - } - new(less.Parser)(new less.tree.parseEnv(less)).parse(str, function (e, root) { - if (e) { - error(e, "session_cache"); - } else { - createCSS(root.toCSS(less), less.sheets[less.sheets.length - 1]); - } - }); -}; - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (e, root, _, sheet, env) { - if (e) { - return error(e, sheet.href); - } - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(less), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - var env = new less.tree.parseEnv(less); - env.filename = document.location.href.replace(/#.*$/, ''); - - new(less.Parser)(env).parse(styles[i].innerHTML || '', function (e, cssAST) { - if (e) { - return error(e, "inline"); - } - var css = cssAST.toCSS(less); - var style = styles[i]; - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function pathDiff(url, baseUrl) { - // diff between two paths to create a relative path - - var urlParts = extractUrlParts(url), - baseUrlParts = extractUrlParts(baseUrl), - i, max, urlDirectories, baseUrlDirectories, diff = ""; - if (urlParts.hostPart !== baseUrlParts.hostPart) { - return ""; - } - max = Math.max(baseUrlParts.directories.length, urlParts.directories.length); - for(i = 0; i < max; i++) { - if (baseUrlParts.directories[i] !== urlParts.directories[i]) { break; } - } - baseUrlDirectories = baseUrlParts.directories.slice(i); - urlDirectories = urlParts.directories.slice(i); - for(i = 0; i < baseUrlDirectories.length-1; i++) { - diff += "../"; - } - for(i = 0; i < urlDirectories.length-1; i++) { - diff += urlDirectories[i] + "/"; - } - return diff; -} - -function extractUrlParts(url, baseUrl) { - // urlParts[1] = protocol&hostname || / - // urlParts[2] = / if path relative to host base - // urlParts[3] = directories - // urlParts[4] = filename - // urlParts[5] = parameters - - var urlPartsRegex = /^((?:[a-z-]+:)?\/+?(?:[^\/\?#]*\/)|([\/\\]))?((?:[^\/\\\?#]*[\/\\])*)([^\/\\\?#]*)([#\?].*)?$/, - urlParts = url.match(urlPartsRegex), - returner = {}, directories = [], i, baseUrlParts; - - if (!urlParts) { - throw new Error("Could not parse sheet href - '"+url+"'"); - } - - // Stylesheets in IE don't always return the full path - if (!urlParts[1] || urlParts[2]) { - baseUrlParts = baseUrl.match(urlPartsRegex); - if (!baseUrlParts) { - throw new Error("Could not parse page url - '"+baseUrl+"'"); - } - urlParts[1] = urlParts[1] || baseUrlParts[1] || ""; - if (!urlParts[2]) { - urlParts[3] = baseUrlParts[3] + urlParts[3]; - } - } - - if (urlParts[3]) { - directories = urlParts[3].replace("\\", "/").split("/"); - - // extract out . before .. so .. doesn't absorb a non-directory - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".") { - directories.splice(i, 1); - i -= 1; - } - } - - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".." && i > 0) { - directories.splice(i-1, 2); - i -= 2; - } - } - } - - returner.hostPart = urlParts[1]; - returner.directories = directories; - returner.path = urlParts[1] + directories.join("/"); - returner.fileUrl = returner.path + (urlParts[4] || ""); - returner.url = returner.fileUrl + (urlParts[5] || ""); - return returner; -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - - // sheet may be set to the stylesheet for the initial load or a collection of properties including - // some env variables for imports - var hrefParts = extractUrlParts(sheet.href, window.location.href); - var href = hrefParts.url; - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - var env; - var newFileInfo = { - relativeUrls: less.relativeUrls, - currentDirectory: hrefParts.path, - filename: href - }; - - if (sheet instanceof less.tree.parseEnv) { - env = new less.tree.parseEnv(sheet); - newFileInfo.entryPath = env.currentFileInfo.entryPath; - newFileInfo.rootpath = env.currentFileInfo.rootpath; - newFileInfo.rootFilename = env.currentFileInfo.rootFilename; - } else { - env = new less.tree.parseEnv(less); - env.mime = sheet.type; - newFileInfo.entryPath = hrefParts.path; - newFileInfo.rootpath = less.rootpath || hrefParts.path; - newFileInfo.rootFilename = href; - } - - if (env.relativeUrls) { - //todo - this relies on option being set on less object rather than being passed in as an option - // - need an originalRootpath - if (less.rootpath) { - newFileInfo.rootpath = extractUrlParts(less.rootpath + pathDiff(hrefParts.path, newFileInfo.entryPath)).path; - } else { - newFileInfo.rootpath = hrefParts.path; - } - } - - xhr(href, sheet.type, function (data, lastModified) { - // Store data this session - session_cache += data.replace(/@import .+?;/ig, ''); - - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, null, data, sheet, { local: true, remaining: remaining }, href); - } else { - // Use remote copy (re-parse) - try { - env.contents[href] = data; // Updating content cache - env.paths = [hrefParts.path]; - env.currentFileInfo = newFileInfo; - - new(less.Parser)(env).parse(data, function (e, root) { - if (e) { return callback(e, null, null, sheet); } - try { - callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining }, href); - //TODO - there must be a better way? A generic less-to-css function that can both call error - //and removeNode where appropriate - //should also add tests - if (env.currentFileInfo.rootFilename === href) { - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } - } catch (e) { - callback(e, null, null, sheet); - } - }); - } catch (e) { - callback(e, null, null, sheet); - } - } - }, function (status, url) { - callback({ type: 'File', message: "'" + url + "' wasn't found (" + status + ")" }, null, null, sheet); - }); -} - -function extractId(href) { - return href.replace(/^[a-z-]+:\/+?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If this has already been inserted into the DOM, we may need to replace it - var oldCss = document.getElementById(id); - var keepOldCss = false; - - // Create a new stylesheet node for insertion or (if necessary) replacement - var css = document.createElement('style'); - css.setAttribute('type', 'text/css'); - if (sheet.media) { - css.setAttribute('media', sheet.media); - } - css.id = id; - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - css.appendChild(document.createTextNode(styles)); - - // If new contents match contents of oldCss, don't replace oldCss - keepOldCss = (oldCss !== null && oldCss.childNodes.length > 0 && css.childNodes.length > 0 && - oldCss.firstChild.nodeValue === css.firstChild.nodeValue); - } - - var head = document.getElementsByTagName('head')[0]; - - // If there is no oldCss, just append; otherwise, only append if we need - // to replace oldCss with an updated stylesheet - if (oldCss == null || keepOldCss === false) { - var nextEl = sheet && sheet.nextSibling || null; - (nextEl || document.getElementsByTagName('head')[0]).parentNode.insertBefore(css, nextEl); - } - if (oldCss && keepOldCss === false) { - head.removeChild(oldCss); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save'); - } - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? less.fileAsync : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - if (isFileProtocol && !less.fileAsync) { - if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new(XMLHttpRequest); - } else { - try { - return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX."); - return null; - } - } -} - -function removeNode(node) { - return node && node.parentNode.removeChild(node); -} - -function log(str) { - if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } -} - -function error(e, rootHref) { - var id = 'less-error-message:' + extractId(rootHref || ""); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, error = []; - var filename = e.filename || rootHref; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - '

    ' + '

    in ' + filenameNoPath + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] != undefined) { - error.push(template.replace(/\{line\}/, (parseInt(e.line) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - '
      ' + error.join('') + '
    '; - } else if (e.stack) { - content += '
    ' + e.stack.split('\n').slice(1).join('
    '); - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #dd6666;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.line {', - 'color: #ff0000;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); 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(input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input).line + 1); - this.callExtract = lines[getLocation(e.call, input).line]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length;) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - } - } - - switch (c) { - case '{': if (! inParam) { level ++; chunk.push(c); break } - case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } - case '(': if (! inParam) { inParam = true; chunk.push(c); break } - case ')': if ( inParam) { inParam = false; chunk.push(c); break } - default: chunk.push(c); - } - - i++; - } - if (level != 0) { - error = new(LessError)({ - index: i-1, - type: 'Parse', - message: (level > 0) ? "missing closing `}`" : "missing opening `{`", - filename: env.currentFileInfo.filename - }, env); - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - if (error) { - return callback(new(LessError)(error, env)); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - options = options || {}; - var importError, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var evaldRoot = evaluate.call(this, evalEnv); - - new(tree.joinSelectorVisitor)() - .run(evaldRoot); - - new(tree.processExtendsVisitor)() - .run(evaldRoot); - - var css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits)}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('ycssmin').cssmin(css, options.maxLineLen); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - callback(e); - } - else { - callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.extendRule) || $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/) || $(/^;+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null } - else { i += name.length } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted) || - $(this.entities.unicodeDescriptor); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var name, curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) return; - - if (value = $(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - if (ud = $(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/)) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList = []; - - if (!$(isRule ? /^&:extend\(/ : /^:extend\(/)) { return; } - - do { - option = null; - elements = []; - while (true) { - option = $(/^(all)(?=\s*(\)|,))/); - if (option) { break; } - e = $(this.element); - if (!e) { break; } - elements.push(e); - } - - option = option && option[1]; - - extendList.push(new(tree.Extend)(new(tree.Selector)(elements), option, index)); - - } while($(",")) - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, delim, arg, index = i, s = input.charAt(i), important = false; - - if (s !== '.' && s !== '#') { return } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - if ($('(')) { - args = this.mixin.args.call(this, true).args; - expect(')'); - } - - args = args || []; - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - - restore(); - }, - args: function (isCall) { - var expressions = [], argsSemiColon = [], isSemiColonSeperated, argsComma = [], expressionContainsNamed, name, nameLoop, value, arg, - returner = {args:null, variadic: false}; - while (true) { - if (isCall) { - arg = $(this.expression); - } else { - $(this.comment); - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value.length == 1) { - var val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(this.expression); - nameLoop = (name = val.name); - } else if (!isCall && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($(',')) { - continue; - } - - if ($(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new (tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - var argInfo = this.mixin.args.call(this, false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - $(this.comment); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) ||$(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^()@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(')) { - if ((v = ($(this.selector))) && - $(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, i) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|') { - i++; - while (input.charAt(i).match(/\s/)) { i++ } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, extend, extendList = []; - - while ((extend = $(this.extend)) || (e = $(this.element))) { - if (extend) { - extendList.push.apply(extendList, extend); - } else { - if (extendList.length) { - error("Extend can only be used at the end of selector"); - } - c = input.charAt(i); - elements.push(e) - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements, extendList); } - if (extendList.length) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (!(key = $(this.entities.variableCurly))) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - if ((op = $(/^[|~*$^]?=/))) { - val = $(this.entities.quoted) || $(/^[\w-]+/) || $(this.entities.variableCurly); - } - - expect(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) - ruleset.debugInfo = debugInfo; - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, c = input.charAt(i), important; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || (name.charAt(0) === '@')) ? - ($(this.value) || $(this.anonymousValue)) : - ($(this.anonymousValue) || $(this.value)); - - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } - }, - anonymousValue: function () { - var match; - if (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j])) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import?\s+/); - - var options = (dir ? $(this.importOptions) : null) || {}; - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $('(')) { return null; } - do { - if (o = $(this.importOption)) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $(',')) { break } - } - } while (o); - expect(')'); - return options; - }, - - importOption: function() { - var opt = $(/^(less|css|multiple|once)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.value); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features); - if(env.dumpLineNumbers) - media.debugInfo = debugInfo; - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, identifier, e, nodes, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - if (!name) return; - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - name += " " + ($(/^[^{]+/) || '').trim(); - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else { - if ((value = hasExpression ? $(this.expression) : $(this.entity)) && $(';')) { - var directive = new(tree.Directive)(name, value); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($('(')) { - if (a = $(this.addition)) { - e = new(tree.Expression)([a]); - expect(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced, expression = []; - if (m = $(this.operand)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while (!peek(/^\/[*\/]/) && (op = ($('/') || $('*')))) { - if (a = $(this.operand)) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } else { - break; - } - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - if (m = $(this.multiplication)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while ((op = $(/^[-+]\s+/) || (!isSpaced && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/) && (delim = $('/'))) { - entities.push(new(tree.Anonymous)(delim)); - } - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-z0-9-]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, currentFileInfo, callback, env) { - if (!/^([a-z-]+:)?\//.test(path) && currentFileInfo.currentDirectory) { - path = currentFileInfo.currentDirectory + path; - } - var sheetEnv = env.toSheet(path); - sheetEnv.processImports = false; - sheetEnv.currentFileInfo = currentFileInfo; - - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet(sheetEnv, - function (e, root, data, sheet, _, path) { - callback.call(null, e, root, path); - }, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 256); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if ((color.luma() * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return this._math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _math: function (fn, unit, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(fn(parseFloat(n.value)), unit == null ? n.unit : unit); - } else if (typeof(n) === 'number') { - return fn(n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - - /* Blending modes */ - - multiply: function(color1, color2) { - var r = color1.rgb[0] * color2.rgb[0] / 255; - var g = color1.rgb[1] * color2.rgb[1] / 255; - var b = color1.rgb[2] * color2.rgb[2] / 255; - return this.rgb(r, g, b); - }, - screen: function(color1, color2) { - var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - overlay: function(color1, color2) { - var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - softlight: function(color1, color2) { - var t = color2.rgb[0] * color1.rgb[0] / 255; - var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255; - t = color2.rgb[1] * color1.rgb[1] / 255; - var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255; - t = color2.rgb[2] * color1.rgb[2] / 255; - var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255; - return this.rgb(r, g, b); - }, - hardlight: function(color1, color2) { - var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255; - var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255; - var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - difference: function(color1, color2) { - var r = Math.abs(color1.rgb[0] - color2.rgb[0]); - var g = Math.abs(color1.rgb[1] - color2.rgb[1]); - var b = Math.abs(color1.rgb[2] - color2.rgb[2]); - return this.rgb(r, g, b); - }, - exclusion: function(color1, color2) { - var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255; - var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255; - var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - average: function(color1, color2) { - var r = (color1.rgb[0] + color2.rgb[0]) / 2; - var g = (color1.rgb[1] + color2.rgb[1]) / 2; - var b = (color1.rgb[2] + color2.rgb[2]) / 2; - return this.rgb(r, g, b); - }, - negation: function(color1, color2) { - var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]); - var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]); - var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]); - return this.rgb(r, g, b); - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - return values.value[index]; - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require("fs"), - path = require("path"), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) mimetype += ';base64'; - } - else { - useBase64 = /;base64$/.test(mimetype) - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } else if (!this.env.silent) { - // if explicitly disabled (via --no-ie-compat on CLI, or env.ieCompat === false), merely warn - console.warn("WARNING: Embedding %s (%dKB) exceeds IE8's data-uri size limit of %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "'data:" + mimetype + ',' + buf + "'"; - return new(tree.URL)(new(tree.Anonymous)(uri)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -var mathFunctions = [{name:"ceil"}, {name:"floor"}, {name: "sqrt"}, {name:"abs"}, - {name:"tan", unit: ""}, {name:"sin", unit: ""}, {name:"cos", unit: ""}, - {name:"atan", unit: "rad"}, {name:"asin", unit: "rad"}, {name:"acos", unit: "rad"}], - createMathFunction = function(name, unit) { - return function(n) { - if (unit != null) { - n = n.unify(); - } - return this._math(Math[name], unit, n); - }; - }; - -for(var i = 0; i < mathFunctions.length; i++) { - tree.functions[mathFunctions[i].name] = createMathFunction(mathFunctions[i].name, mathFunctions[i].unit); -} - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - // 'transparent':'rgba(0,0,0,0)', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - }, - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - toCSS: function () { - return this.value; - }, - eval: function () { return this }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - this.args = visitor.visit(this.args); - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS(env); }).join(', ') + ")"); - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - type: "Color", - eval: function () { return this }, - luma: function () { return (0.2126 * this.rgb[0] / 255) + (0.7152 * this.rgb[1] / 255) + (0.0722 * this.rgb[2] / 255); }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress; - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - - if (compress) { - color = color.split(''); - - // Convert color to short format - if (color[0] == color[1] && color[2] == color[3] && color[4] == color[5]) { - color = color[0] + color[2] + color[4]; - } else { - color = color.join(''); - } - } - - return '#' + color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - type: "Comment", - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function (env) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = this.value, - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && !this.unit.isAngle()) { - return strValue; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - return strValue + this.unit.toCSS(env); - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length == 0 && unit.denominator.length == 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a = this.unify(), b = other.unify(), - aValue = a.value, bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - if (!b.unit.isEmpty() && a.unit.compare(b.unit) !== 0) { - return -1; - } - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'm', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, conversion, targetUnit, derivedConversions = {}; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(function (atomicUnit, denominator) { - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - - toCSS: function (env) { - if (this.numerator.length >= 1) { - return this.numerator[0]; - } - if (this.denominator.length >= 1) { - return this.denominator[0]; - } - if ((!env || !env.strictUnits) && this.backupUnit) { - return this.backupUnit; - } - return ""; - }, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isAngle: function () { - return tree.UnitConversions.angle.hasOwnProperty(this.toCSS()); - }, - - isEmpty: function () { - return this.numerator.length == 0 && this.denominator.length == 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length == 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, groupName, result = {}; - - for (groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(function (atomicUnit) { - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - this.ruleset = visitor.visit(this.ruleset); - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - var evaldDirective = this; - if (this.ruleset) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name); - evaldDirective.ruleset = this.ruleset.eval(env); - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - this.combinator = visitor.visit(this.combinator); - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value == '' && this.combinator.value.charAt(0) == '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - toCSS: function (env) { - return { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ', - '|' : env.compress ? '|' : ' | ' - }[this.value]; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - }, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i; - - for(i = 0; i < selectors.length; i++) { - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - var that = this; - - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined) { - this.css = !this.options.less; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.path = visitor.visit(this.path); - this.root = visitor.visit(this.root); - }, - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - return "@import " + this.path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && !(path instanceof tree.URL)) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath + pathValue; - } - } - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { return []; } - - if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - toCSS: function () { return this.value; }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.Media = function (value, features) { - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.ruleset = new(tree.Ruleset)(selectors, value); - this.ruleset.allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.ruleset = visitor.visit(this.ruleset); - }, - toCSS: function (env) { - var features = this.features.toCSS(env); - - return '@media ' + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - }, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)([], []); - if(this.debugInfo) { - this.ruleset.debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.ruleset); - media.ruleset = this.ruleset.eval(env); - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env) - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', 0); - return [new(tree.Selector)([el])]; - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.ruleset = new(tree.Ruleset)(selectors.slice(0), [this.ruleset]); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - this.arguments = visitor.visit(this.arguments); - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - if (mixin.matchArgs(args, env)) { - if (!mixin.matchCondition || mixin.matchCondition(args, env)) { - try { - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - match = true; - } - } - if (match) { - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")`", - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - this.params = visitor.visit(this.params); - this.rules = visitor.visit(this.rules); - this.condition = visitor.visit(this.condition); - }, - toCSS: function () { return ""; }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - var frame = new(tree.Ruleset)(null, []), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.rules.unshift(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) continue; - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.rules.unshift(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - context, rules, start, ruleset; - - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.parent.makeImportant.apply(this).rules : this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules).eval(new(tree.evalEnv)(env, - [this, frame].concat(mixinFrames))); - ruleset.originalRuleset = this; - return ruleset; - }, - matchCondition: function (args, env) { - - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] - .concat(env.frames)))) { - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (! this.variadic) { - if (argsLength < this.required) { return false } - if (argsLength > this.params.length) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - return '-' + this.value.toCSS(env); - }, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { type: "Operation", - message: "Can't substract or divide a color from a number" }; - } - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - toCSS: function (env) { - var separator = this.isSpaced ? " " : ""; - return this.operands[0].toCSS() + separator + this.op + separator + this.operands[1].toCSS(); - } -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - return '(' + this.value.toCSS(env).trim() + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - if (this.variable) { return "" } - else { - try { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - } - }, - eval: function (env) { - var strictMathBypass = false; - if (this.name === "font" && env.strictMath === false) { - strictMathBypass = true; - env.strictMath = true; - } - try { - return new(tree.Rule)(this.name, - this.value.eval(env), - this.important, - this.index, this.currentFileInfo, this.inline); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.index, this.currentFileInfo, this.inline); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - this.selectors = visitor.visit(this.selectors); - this.rules = visitor.visit(this.rules); - }, - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // currrent selectors - if (!env.selectors) { - env.selectors = []; - } - env.selectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - rules = ruleset.rules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - ruleset.rules.splice.apply(ruleset.rules, [i, 1].concat(rules)); - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - env.selectors.shift(); - - if (env.mediaBlocks) { - for(var i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var i, rules; - for (i = 0; i < this.rules.length; i++) { - if (this.rules[i] instanceof tree.Import) { - rules = this.rules[i].eval(env); - if (typeof rules.length === "number") { - this.rules.splice.apply(this.rules, [i, 1].concat(rules)); - i+= rules.length-1; - } else { - this.rules.splice(i, 1, rules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - return this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - _rules = [], // - rulesets = [], // node.Ruleset instances - selector, // The fully rendered selector - debugInfo, // Line number debugging - rule; - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Media)) { - rulesets.push(rule.toCSS(env)); - } else if (rule instanceof tree.Directive) { - var cssValue = rule.toCSS(env); - // Output only the first @charset definition as such - convert the others - // to comments in case debug is enabled - if (rule.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (env.charset) { - if (rule.debugInfo) { - rulesets.push(tree.debugInfo(env, rule)); - rulesets.push(new tree.Comment("/* "+cssValue.replace(/\n/g, "")+" */\n").toCSS(env)); - } - continue; - } - env.charset = true; - } - rulesets.push(cssValue); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - if (this.firstRoot && rule instanceof tree.Rule) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: rule.index, filename: rule.currentFileInfo ? rule.currentFileInfo.filename : null}; - } - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - // Remove last semicolon - if (env.compress && rules.length) { - rule = rules[rules.length - 1]; - if (rule.charAt(rule.length - 1) === ';') { - rules[rules.length - 1] = rule.substring(0, rule.length - 1); - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - debugInfo = tree.debugInfo(env, this); - selector = this.paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : ',\n'); - - // Remove duplicates - for (var i = rules.length - 1; i >= 0; i--) { - if (rules[i].slice(0, 2) === "/*" || _rules.indexOf(rules[i]) === -1) { - _rules.unshift(rules[i]); - } - } - rules = _rules; - - css.push(debugInfo + selector + - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for(i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for(j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length == 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0)); //new Element(el.Combinator, "")); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for(k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = new(tree.Selector)(lastSelector.elements.slice(0), selector.extendList); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = new(tree.Selector)([], selector.extendList); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, 0)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for(i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel, extendList; - - if (selectors.length == 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for(i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = new(tree.Selector)(sel[sel.length - 1].elements.concat(elements), sel[sel.length - 1].extendList); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements, extendList) { - this.elements = elements; - this.extendList = extendList || []; -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - this.elements = visitor.visit(this.elements); - this.extendList = visitor.visit(this.extendList) - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, max, i; - - oelements = other.elements.slice( - (other.elements.length && other.elements[0].value === "&") ? 1 : 0); - olen = oelements.length; - max = Math.min(len, olen); - - if (olen === 0 || len < olen) { - return false; - } else { - for (i = 0; i < max; i++) { - if (elements[i].value !== oelements[i].value) { - return false; - } - } - } - return true; - }, - eval: function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - }), this.extendList.map(function(extend) { - return extend.eval(env); - })); - }, - toCSS: function (env) { - if (this._css) { return this._css } - - if (this.elements[0].combinator.value === "") { - this._css = ' '; - } else { - this._css = ''; - } - - this._css += this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); - - return this._css; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, currentFileInfo) { - this.value = val; - this.currentFileInfo = currentFileInfo; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function () { - return "url(" + this.value.toCSS() + ")"; - }, - eval: function (ctx) { - var val = this.value.eval(ctx), rootpath; - - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - return new(tree.URL)(val, null); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { this.name = name, this.index = index, this.currentFileInfo = currentFileInfo }; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { - this.evaluating = false; - return variable; - } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.debugInfo = function(env, ctx) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx)+tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:/\\])/g, function(a){if(a=='\\') a = '\/'; return '\\' + a}) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // browser-only, contents of all the files - 'relativeUrls', // option - whether to adjust URL's to be relative - 'strictImports', // option - - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'mime', // browser only - mime type for sheet import - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' = absolute path to the entry file - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - tree.parseEnv.prototype.toSheet = function (path) { - var env = new tree.parseEnv(this); - env.href = path; - //env.title = path; - env.type = this.mime; - return env; - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits' // whether units need to evaluate correctly - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - } -})(require('./tree'));(function (tree) { - - tree.visitor = function(implementation) { - this._implementation = implementation; - }; - - tree.visitor.prototype = { - visit: function(node) { - - if (node instanceof Array) { - return this.visitArray(node); - } - - if (!node || !node.type) { - return node; - } - - var funcName = "visit" + node.type, - func = this._implementation[funcName], - visitArgs, newNode; - if (func) { - visitArgs = {visitDeeper: true}; - newNode = func.call(this._implementation, node, visitArgs); - if (this._implementation.isReplacing) { - node = newNode; - } - } - if ((!visitArgs || visitArgs.visitDeeper) && node && node.accept) { - node.accept(this); - } - funcName = funcName + "Out"; - if (this._implementation[funcName]) { - this._implementation[funcName](node); - } - return node; - }, - visitArray: function(nodes) { - var i, newNodes = []; - for(i = 0; i < nodes.length; i++) { - var evald = this.visit(nodes[i]); - if (evald instanceof Array) { - newNodes = newNodes.concat(evald); - } else { - newNodes.push(evald); - } - } - if (this._implementation.isReplacing) { - return newNodes; - } - return nodes; - } - }; - -})(require('./tree'));(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode; - - if (!importNode.css) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && !evaldImportNode.css) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - this._importer.push(importNode.getPath(), importNode.currentFileInfo, function (e, root, imported) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - if (imported && !importNode.options.multiple) { importNode.skip = imported; } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - new(tree.importVisitor)(importVisitor._importer, subFinish, env) - .run(root); - } else { - subFinish(); - } - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree'));(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - var paths = []; - this.contexts.push(paths); - - if (! rulesetNode.root) { - rulesetNode.joinSelectors(paths, context, rulesetNode.selectors); - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.ruleset.root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree'));(function (tree) { - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - for(i = 0; i < rulesetNode.rules.length; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rulesetNode.rules[i]); - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - for(i = 0; i < rulesetNode.paths.length; i++) { - var selectorPath = rulesetNode.paths[i], - selector = selectorPath[selectorPath.length-1]; - extendList = selector.extendList.slice(0).concat(allSelectorsExtendList).map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if (this.inInheritanceChain(targetExtend, extend)) { continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parents = [targetExtend, extend]; - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - inInheritanceChain: function (possibleParent, possibleChild) { - if (possibleParent === possibleChild) { - return true; - } - if (possibleChild.parents) { - if (this.inInheritanceChain(possibleParent, possibleChild.parents[0])) { - return true; - } - if (this.inInheritanceChain(possibleParent, possibleChild.parents[1])) { - return true; - } - } - return false; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (selectorPath[selectorPath.length-1].extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex == 0 && hackstackElementIndex == 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator == '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - return false; - }, - extendSelector:function (matches, selectorPath, replacementSelector) { - - //for a set of matches, replace each match with the replacement selector - - var currentSelectorPathIndex = 0, - currentSelectorPathElementIndex = 0, - path = [], - matchIndex, - selector, - firstElement, - match; - - for (matchIndex = 0; matchIndex < matches.length; matchIndex++) { - match = matches[matchIndex]; - selector = selectorPath[match.pathIndex]; - firstElement = new tree.Element( - match.initialCombinator, - replacementSelector.elements[0].value, - replacementSelector.elements[0].index - ); - - if (match.pathIndex > currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)) - )); - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selector.elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree'));// -// browser.js - client-side engine -// - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - less.tree.functions[func] = less.functions[func]; - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -// -// Watch mode -// -less.watch = function () { - if (!less.watchMode ){ - less.env = 'development'; - initRunningMode(); - } - return this.watchMode = true -}; - -less.unwatch = function () {clearInterval(less.watchTimer); return this.watchMode = false; }; - -function initRunningMode(){ - if (less.env === 'development') { - less.optimization = 0; - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (e, root, _, sheet, env) { - if (e) { - error(e, sheet.href); - } else if (root) { - createCSS(root.toCSS(less), sheet, env.lastModified); - } - }); - } - }, less.poll); - } else { - less.optimization = 3; - } -} - -if (/!watch/.test(location.hash)) { - less.watch(); -} - -var cache = null; - -if (less.env != 'development') { - try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; - } catch (_) {} -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - -// -// With this function, it's possible to alter variables and re-render -// CSS without reloading less-files -// -var session_cache = ''; -less.modifyVars = function(record) { - var str = session_cache; - for (var name in record) { - str += ((name.slice(0,1) === '@')? '' : '@') + name +': '+ - ((record[name].slice(-1) === ';')? record[name] : record[name] +';'); - } - new(less.Parser)(new less.tree.parseEnv(less)).parse(str, function (e, root) { - if (e) { - error(e, "session_cache"); - } else { - createCSS(root.toCSS(less), less.sheets[less.sheets.length - 1]); - } - }); -}; - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (e, root, _, sheet, env) { - if (e) { - return error(e, sheet.href); - } - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(less), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - var env = new less.tree.parseEnv(less); - env.filename = document.location.href.replace(/#.*$/, ''); - - new(less.Parser)(env).parse(styles[i].innerHTML || '', function (e, cssAST) { - if (e) { - return error(e, "inline"); - } - var css = cssAST.toCSS(less); - var style = styles[i]; - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function pathDiff(url, baseUrl) { - // diff between two paths to create a relative path - - var urlParts = extractUrlParts(url), - baseUrlParts = extractUrlParts(baseUrl), - i, max, urlDirectories, baseUrlDirectories, diff = ""; - if (urlParts.hostPart !== baseUrlParts.hostPart) { - return ""; - } - max = Math.max(baseUrlParts.directories.length, urlParts.directories.length); - for(i = 0; i < max; i++) { - if (baseUrlParts.directories[i] !== urlParts.directories[i]) { break; } - } - baseUrlDirectories = baseUrlParts.directories.slice(i); - urlDirectories = urlParts.directories.slice(i); - for(i = 0; i < baseUrlDirectories.length-1; i++) { - diff += "../"; - } - for(i = 0; i < urlDirectories.length-1; i++) { - diff += urlDirectories[i] + "/"; - } - return diff; -} - -function extractUrlParts(url, baseUrl) { - // urlParts[1] = protocol&hostname || / - // urlParts[2] = / if path relative to host base - // urlParts[3] = directories - // urlParts[4] = filename - // urlParts[5] = parameters - - var urlPartsRegex = /^((?:[a-z-]+:)?\/+?(?:[^\/\?#]*\/)|([\/\\]))?((?:[^\/\\\?#]*[\/\\])*)([^\/\\\?#]*)([#\?].*)?$/, - urlParts = url.match(urlPartsRegex), - returner = {}, directories = [], i, baseUrlParts; - - if (!urlParts) { - throw new Error("Could not parse sheet href - '"+url+"'"); - } - - // Stylesheets in IE don't always return the full path - if (!urlParts[1] || urlParts[2]) { - baseUrlParts = baseUrl.match(urlPartsRegex); - if (!baseUrlParts) { - throw new Error("Could not parse page url - '"+baseUrl+"'"); - } - urlParts[1] = urlParts[1] || baseUrlParts[1] || ""; - if (!urlParts[2]) { - urlParts[3] = baseUrlParts[3] + urlParts[3]; - } - } - - if (urlParts[3]) { - directories = urlParts[3].replace("\\", "/").split("/"); - - // extract out . before .. so .. doesn't absorb a non-directory - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".") { - directories.splice(i, 1); - i -= 1; - } - } - - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".." && i > 0) { - directories.splice(i-1, 2); - i -= 2; - } - } - } - - returner.hostPart = urlParts[1]; - returner.directories = directories; - returner.path = urlParts[1] + directories.join("/"); - returner.fileUrl = returner.path + (urlParts[4] || ""); - returner.url = returner.fileUrl + (urlParts[5] || ""); - return returner; -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - - // sheet may be set to the stylesheet for the initial load or a collection of properties including - // some env variables for imports - var hrefParts = extractUrlParts(sheet.href, window.location.href); - var href = hrefParts.url; - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - var env; - var newFileInfo = { - relativeUrls: less.relativeUrls, - currentDirectory: hrefParts.path, - filename: href - }; - - if (sheet instanceof less.tree.parseEnv) { - env = new less.tree.parseEnv(sheet); - newFileInfo.entryPath = env.currentFileInfo.entryPath; - newFileInfo.rootpath = env.currentFileInfo.rootpath; - newFileInfo.rootFilename = env.currentFileInfo.rootFilename; - } else { - env = new less.tree.parseEnv(less); - env.mime = sheet.type; - newFileInfo.entryPath = hrefParts.path; - newFileInfo.rootpath = less.rootpath || hrefParts.path; - newFileInfo.rootFilename = href; - } - - if (env.relativeUrls) { - //todo - this relies on option being set on less object rather than being passed in as an option - // - need an originalRootpath - if (less.rootpath) { - newFileInfo.rootpath = extractUrlParts(less.rootpath + pathDiff(hrefParts.path, newFileInfo.entryPath)).path; - } else { - newFileInfo.rootpath = hrefParts.path; - } - } - - xhr(href, sheet.type, function (data, lastModified) { - // Store data this session - session_cache += data.replace(/@import .+?;/ig, ''); - - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, null, data, sheet, { local: true, remaining: remaining }, href); - } else { - // Use remote copy (re-parse) - try { - env.contents[href] = data; // Updating content cache - env.paths = [hrefParts.path]; - env.currentFileInfo = newFileInfo; - - new(less.Parser)(env).parse(data, function (e, root) { - if (e) { return callback(e, null, null, sheet); } - try { - callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining }, href); - //TODO - there must be a better way? A generic less-to-css function that can both call error - //and removeNode where appropriate - //should also add tests - if (env.currentFileInfo.rootFilename === href) { - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } - } catch (e) { - callback(e, null, null, sheet); - } - }); - } catch (e) { - callback(e, null, null, sheet); - } - } - }, function (status, url) { - callback({ type: 'File', message: "'" + url + "' wasn't found (" + status + ")" }, null, null, sheet); - }); -} - -function extractId(href) { - return href.replace(/^[a-z-]+:\/+?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If this has already been inserted into the DOM, we may need to replace it - var oldCss = document.getElementById(id); - var keepOldCss = false; - - // Create a new stylesheet node for insertion or (if necessary) replacement - var css = document.createElement('style'); - css.setAttribute('type', 'text/css'); - if (sheet.media) { - css.setAttribute('media', sheet.media); - } - css.id = id; - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - css.appendChild(document.createTextNode(styles)); - - // If new contents match contents of oldCss, don't replace oldCss - keepOldCss = (oldCss !== null && oldCss.childNodes.length > 0 && css.childNodes.length > 0 && - oldCss.firstChild.nodeValue === css.firstChild.nodeValue); - } - - var head = document.getElementsByTagName('head')[0]; - - // If there is no oldCss, just append; otherwise, only append if we need - // to replace oldCss with an updated stylesheet - if (oldCss == null || keepOldCss === false) { - var nextEl = sheet && sheet.nextSibling || null; - (nextEl || document.getElementsByTagName('head')[0]).parentNode.insertBefore(css, nextEl); - } - if (oldCss && keepOldCss === false) { - head.removeChild(oldCss); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save'); - } - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? less.fileAsync : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - if (isFileProtocol && !less.fileAsync) { - if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new(XMLHttpRequest); - } else { - try { - return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX."); - return null; - } - } -} - -function removeNode(node) { - return node && node.parentNode.removeChild(node); -} - -function log(str) { - if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } -} - -function error(e, rootHref) { - var id = 'less-error-message:' + extractId(rootHref || ""); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, error = []; - var filename = e.filename || rootHref; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - '

    ' + '

    in ' + filenameNoPath + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] != undefined) { - error.push(template.replace(/\{line\}/, (parseInt(e.line) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - '
      ' + error.join('') + '
    '; - } else if (e.stack) { - content += '
    ' + e.stack.split('\n').slice(1).join('
    '); - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #dd6666;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.line {', - 'color: #ff0000;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); 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(input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input).line + 1); - this.callExtract = lines[getLocation(e.call, input).line]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length;) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - } - } - - switch (c) { - case '{': if (! inParam) { level ++; chunk.push(c); break } - case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } - case '(': if (! inParam) { inParam = true; chunk.push(c); break } - case ')': if ( inParam) { inParam = false; chunk.push(c); break } - default: chunk.push(c); - } - - i++; - } - if (level != 0) { - error = new(LessError)({ - index: i-1, - type: 'Parse', - message: (level > 0) ? "missing closing `}`" : "missing opening `{`", - filename: env.currentFileInfo.filename - }, env); - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - if (error) { - return callback(new(LessError)(error, env)); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - options = options || {}; - var importError, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var evaldRoot = evaluate.call(this, evalEnv); - - new(tree.joinSelectorVisitor)() - .run(evaldRoot); - - new(tree.processExtendsVisitor)() - .run(evaldRoot); - - var css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits)}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('ycssmin').cssmin(css, options.maxLineLen); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - callback(e); - } - else { - callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.extendRule) || $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/) || $(/^;+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null } - else { i += name.length } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted) || - $(this.entities.unicodeDescriptor); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var name, curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) return; - - if (value = $(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - if (ud = $(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/)) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList = []; - - if (!$(isRule ? /^&:extend\(/ : /^:extend\(/)) { return; } - - do { - option = null; - elements = []; - while (true) { - option = $(/^(all)(?=\s*(\)|,))/); - if (option) { break; } - e = $(this.element); - if (!e) { break; } - elements.push(e); - } - - option = option && option[1]; - - extendList.push(new(tree.Extend)(new(tree.Selector)(elements), option, index)); - - } while($(",")) - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, delim, arg, index = i, s = input.charAt(i), important = false; - - if (s !== '.' && s !== '#') { return } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - if ($('(')) { - args = this.mixin.args.call(this, true).args; - expect(')'); - } - - args = args || []; - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - - restore(); - }, - args: function (isCall) { - var expressions = [], argsSemiColon = [], isSemiColonSeperated, argsComma = [], expressionContainsNamed, name, nameLoop, value, arg, - returner = {args:null, variadic: false}; - while (true) { - if (isCall) { - arg = $(this.expression); - } else { - $(this.comment); - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value.length == 1) { - var val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(this.expression); - nameLoop = (name = val.name); - } else if (!isCall && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($(',')) { - continue; - } - - if ($(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new (tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - var argInfo = this.mixin.args.call(this, false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - $(this.comment); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) ||$(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^()@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(')) { - if ((v = ($(this.selector))) && - $(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, i) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|') { - i++; - while (input.charAt(i).match(/\s/)) { i++ } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, extend, extendList = []; - - while ((extend = $(this.extend)) || (e = $(this.element))) { - if (extend) { - extendList.push.apply(extendList, extend); - } else { - if (extendList.length) { - error("Extend can only be used at the end of selector"); - } - c = input.charAt(i); - elements.push(e) - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements, extendList); } - if (extendList.length) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (!(key = $(this.entities.variableCurly))) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - if ((op = $(/^[|~*$^]?=/))) { - val = $(this.entities.quoted) || $(/^[\w-]+/) || $(this.entities.variableCurly); - } - - expect(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) - ruleset.debugInfo = debugInfo; - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, c = input.charAt(i), important; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || (name.charAt(0) === '@')) ? - ($(this.value) || $(this.anonymousValue)) : - ($(this.anonymousValue) || $(this.value)); - - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } - }, - anonymousValue: function () { - var match; - if (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j])) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import?\s+/); - - var options = (dir ? $(this.importOptions) : null) || {}; - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $('(')) { return null; } - do { - if (o = $(this.importOption)) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $(',')) { break } - } - } while (o); - expect(')'); - return options; - }, - - importOption: function() { - var opt = $(/^(less|css|multiple|once)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.value); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features); - if(env.dumpLineNumbers) - media.debugInfo = debugInfo; - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, identifier, e, nodes, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - if (!name) return; - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - name += " " + ($(/^[^{]+/) || '').trim(); - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else { - if ((value = hasExpression ? $(this.expression) : $(this.entity)) && $(';')) { - var directive = new(tree.Directive)(name, value); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($('(')) { - if (a = $(this.addition)) { - e = new(tree.Expression)([a]); - expect(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced, expression = []; - if (m = $(this.operand)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while (!peek(/^\/[*\/]/) && (op = ($('/') || $('*')))) { - if (a = $(this.operand)) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } else { - break; - } - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - if (m = $(this.multiplication)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while ((op = $(/^[-+]\s+/) || (!isSpaced && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/) && (delim = $('/'))) { - entities.push(new(tree.Anonymous)(delim)); - } - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, currentFileInfo, callback, env) { - if (!/^([a-z-]+:)?\//.test(path) && currentFileInfo.currentDirectory) { - path = currentFileInfo.currentDirectory + path; - } - var sheetEnv = env.toSheet(path); - sheetEnv.processImports = false; - sheetEnv.currentFileInfo = currentFileInfo; - - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet(sheetEnv, - function (e, root, data, sheet, _, path) { - callback.call(null, e, root, path); - }, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 256); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if ((color.luma() * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return this._math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _math: function (fn, unit, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(fn(parseFloat(n.value)), unit == null ? n.unit : unit); - } else if (typeof(n) === 'number') { - return fn(n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - - /* Blending modes */ - - multiply: function(color1, color2) { - var r = color1.rgb[0] * color2.rgb[0] / 255; - var g = color1.rgb[1] * color2.rgb[1] / 255; - var b = color1.rgb[2] * color2.rgb[2] / 255; - return this.rgb(r, g, b); - }, - screen: function(color1, color2) { - var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - overlay: function(color1, color2) { - var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - softlight: function(color1, color2) { - var t = color2.rgb[0] * color1.rgb[0] / 255; - var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255; - t = color2.rgb[1] * color1.rgb[1] / 255; - var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255; - t = color2.rgb[2] * color1.rgb[2] / 255; - var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255; - return this.rgb(r, g, b); - }, - hardlight: function(color1, color2) { - var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255; - var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255; - var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - difference: function(color1, color2) { - var r = Math.abs(color1.rgb[0] - color2.rgb[0]); - var g = Math.abs(color1.rgb[1] - color2.rgb[1]); - var b = Math.abs(color1.rgb[2] - color2.rgb[2]); - return this.rgb(r, g, b); - }, - exclusion: function(color1, color2) { - var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255; - var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255; - var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - average: function(color1, color2) { - var r = (color1.rgb[0] + color2.rgb[0]) / 2; - var g = (color1.rgb[1] + color2.rgb[1]) / 2; - var b = (color1.rgb[2] + color2.rgb[2]) / 2; - return this.rgb(r, g, b); - }, - negation: function(color1, color2) { - var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]); - var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]); - var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]); - return this.rgb(r, g, b); - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - return values.value[index]; - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require("fs"), - path = require("path"), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) mimetype += ';base64'; - } - else { - useBase64 = /;base64$/.test(mimetype) - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } else if (!this.env.silent) { - // if explicitly disabled (via --no-ie-compat on CLI, or env.ieCompat === false), merely warn - console.warn("WARNING: Embedding %s (%dKB) exceeds IE8's data-uri size limit of %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "'data:" + mimetype + ',' + buf + "'"; - return new(tree.URL)(new(tree.Anonymous)(uri)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -var mathFunctions = [{name:"ceil"}, {name:"floor"}, {name: "sqrt"}, {name:"abs"}, - {name:"tan", unit: ""}, {name:"sin", unit: ""}, {name:"cos", unit: ""}, - {name:"atan", unit: "rad"}, {name:"asin", unit: "rad"}, {name:"acos", unit: "rad"}], - createMathFunction = function(name, unit) { - return function(n) { - if (unit != null) { - n = n.unify(); - } - return this._math(Math[name], unit, n); - }; - }; - -for(var i = 0; i < mathFunctions.length; i++) { - tree.functions[mathFunctions[i].name] = createMathFunction(mathFunctions[i].name, mathFunctions[i].unit); -} - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - // 'transparent':'rgba(0,0,0,0)', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - }, - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - toCSS: function () { - return this.value; - }, - eval: function () { return this }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - this.args = visitor.visit(this.args); - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS(env); }).join(', ') + ")"); - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - type: "Color", - eval: function () { return this }, - luma: function () { return (0.2126 * this.rgb[0] / 255) + (0.7152 * this.rgb[1] / 255) + (0.0722 * this.rgb[2] / 255); }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress; - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - - if (compress) { - color = color.split(''); - - // Convert color to short format - if (color[0] == color[1] && color[2] == color[3] && color[4] == color[5]) { - color = color[0] + color[2] + color[4]; - } else { - color = color.join(''); - } - } - - return '#' + color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - type: "Comment", - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function (env) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = this.value, - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && !this.unit.isAngle()) { - return strValue; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - return strValue + this.unit.toCSS(env); - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length == 0 && unit.denominator.length == 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a = this.unify(), b = other.unify(), - aValue = a.value, bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - if (!b.unit.isEmpty() && a.unit.compare(b.unit) !== 0) { - return -1; - } - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'm', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, conversion, targetUnit, derivedConversions = {}; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(function (atomicUnit, denominator) { - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - - toCSS: function (env) { - if (this.numerator.length >= 1) { - return this.numerator[0]; - } - if (this.denominator.length >= 1) { - return this.denominator[0]; - } - if ((!env || !env.strictUnits) && this.backupUnit) { - return this.backupUnit; - } - return ""; - }, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isAngle: function () { - return tree.UnitConversions.angle.hasOwnProperty(this.toCSS()); - }, - - isEmpty: function () { - return this.numerator.length == 0 && this.denominator.length == 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length == 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, groupName, result = {}; - - for (groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(function (atomicUnit) { - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - this.ruleset = visitor.visit(this.ruleset); - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - var evaldDirective = this; - if (this.ruleset) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name); - evaldDirective.ruleset = this.ruleset.eval(env); - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - this.combinator = visitor.visit(this.combinator); - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value == '' && this.combinator.value.charAt(0) == '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - toCSS: function (env) { - return { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ', - '|' : env.compress ? '|' : ' | ' - }[this.value]; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - }, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i; - - for(i = 0; i < selectors.length; i++) { - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - var that = this; - - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined) { - this.css = !this.options.less; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.path = visitor.visit(this.path); - this.root = visitor.visit(this.root); - }, - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - return "@import " + this.path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && !(path instanceof tree.URL)) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath + pathValue; - } - } - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { return []; } - - if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - toCSS: function () { return this.value; }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.Media = function (value, features) { - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.ruleset = new(tree.Ruleset)(selectors, value); - this.ruleset.allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.ruleset = visitor.visit(this.ruleset); - }, - toCSS: function (env) { - var features = this.features.toCSS(env); - - return '@media ' + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - }, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)([], []); - if(this.debugInfo) { - this.ruleset.debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.ruleset); - media.ruleset = this.ruleset.eval(env); - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env) - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', 0); - return [new(tree.Selector)([el])]; - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.ruleset = new(tree.Ruleset)(selectors.slice(0), [this.ruleset]); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - this.arguments = visitor.visit(this.arguments); - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - if (mixin.matchArgs(args, env)) { - if (!mixin.matchCondition || mixin.matchCondition(args, env)) { - try { - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - match = true; - } - } - if (match) { - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")`", - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - this.params = visitor.visit(this.params); - this.rules = visitor.visit(this.rules); - this.condition = visitor.visit(this.condition); - }, - toCSS: function () { return ""; }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - var frame = new(tree.Ruleset)(null, []), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.rules.unshift(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) continue; - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.rules.unshift(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - context, rules, start, ruleset; - - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.parent.makeImportant.apply(this).rules : this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules).eval(new(tree.evalEnv)(env, - [this, frame].concat(mixinFrames))); - ruleset.originalRuleset = this; - return ruleset; - }, - matchCondition: function (args, env) { - - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] - .concat(env.frames)))) { - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (! this.variadic) { - if (argsLength < this.required) { return false } - if (argsLength > this.params.length) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - return '-' + this.value.toCSS(env); - }, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { type: "Operation", - message: "Can't substract or divide a color from a number" }; - } - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - toCSS: function (env) { - var separator = this.isSpaced ? " " : ""; - return this.operands[0].toCSS() + separator + this.op + separator + this.operands[1].toCSS(); - } -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - return '(' + this.value.toCSS(env).trim() + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - if (this.variable) { return "" } - else { - try { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - } - }, - eval: function (env) { - var strictMathBypass = false; - if (this.name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - return new(tree.Rule)(this.name, - this.value.eval(env), - this.important, - this.index, this.currentFileInfo, this.inline); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.index, this.currentFileInfo, this.inline); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - this.selectors = visitor.visit(this.selectors); - this.rules = visitor.visit(this.rules); - }, - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // currrent selectors - if (!env.selectors) { - env.selectors = []; - } - env.selectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - rules = ruleset.rules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - ruleset.rules.splice.apply(ruleset.rules, [i, 1].concat(rules)); - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - env.selectors.shift(); - - if (env.mediaBlocks) { - for(var i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var i, rules; - for (i = 0; i < this.rules.length; i++) { - if (this.rules[i] instanceof tree.Import) { - rules = this.rules[i].eval(env); - if (typeof rules.length === "number") { - this.rules.splice.apply(this.rules, [i, 1].concat(rules)); - i+= rules.length-1; - } else { - this.rules.splice(i, 1, rules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - return this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - _rules = [], // - rulesets = [], // node.Ruleset instances - selector, // The fully rendered selector - debugInfo, // Line number debugging - rule; - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Media)) { - rulesets.push(rule.toCSS(env)); - } else if (rule instanceof tree.Directive) { - var cssValue = rule.toCSS(env); - // Output only the first @charset definition as such - convert the others - // to comments in case debug is enabled - if (rule.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (env.charset) { - if (rule.debugInfo) { - rulesets.push(tree.debugInfo(env, rule)); - rulesets.push(new tree.Comment("/* "+cssValue.replace(/\n/g, "")+" */\n").toCSS(env)); - } - continue; - } - env.charset = true; - } - rulesets.push(cssValue); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - if (this.firstRoot && rule instanceof tree.Rule) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: rule.index, filename: rule.currentFileInfo ? rule.currentFileInfo.filename : null}; - } - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - // Remove last semicolon - if (env.compress && rules.length) { - rule = rules[rules.length - 1]; - if (rule.charAt(rule.length - 1) === ';') { - rules[rules.length - 1] = rule.substring(0, rule.length - 1); - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - debugInfo = tree.debugInfo(env, this); - selector = this.paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : ',\n'); - - // Remove duplicates - for (var i = rules.length - 1; i >= 0; i--) { - if (rules[i].slice(0, 2) === "/*" || _rules.indexOf(rules[i]) === -1) { - _rules.unshift(rules[i]); - } - } - rules = _rules; - - css.push(debugInfo + selector + - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for(i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for(j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length == 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0)); //new Element(el.Combinator, "")); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for(k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = new(tree.Selector)(lastSelector.elements.slice(0), selector.extendList); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = new(tree.Selector)([], selector.extendList); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, 0)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for(i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel, extendList; - - if (selectors.length == 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for(i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = new(tree.Selector)(sel[sel.length - 1].elements.concat(elements), sel[sel.length - 1].extendList); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements, extendList) { - this.elements = elements; - this.extendList = extendList || []; -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - this.elements = visitor.visit(this.elements); - this.extendList = visitor.visit(this.extendList) - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, max, i; - - oelements = other.elements.slice( - (other.elements.length && other.elements[0].value === "&") ? 1 : 0); - olen = oelements.length; - max = Math.min(len, olen); - - if (olen === 0 || len < olen) { - return false; - } else { - for (i = 0; i < max; i++) { - if (elements[i].value !== oelements[i].value) { - return false; - } - } - } - return true; - }, - eval: function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - }), this.extendList.map(function(extend) { - return extend.eval(env); - })); - }, - toCSS: function (env) { - if (this._css) { return this._css } - - if (this.elements[0].combinator.value === "") { - this._css = ' '; - } else { - this._css = ''; - } - - this._css += this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); - - return this._css; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, currentFileInfo) { - this.value = val; - this.currentFileInfo = currentFileInfo; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function () { - return "url(" + this.value.toCSS() + ")"; - }, - eval: function (ctx) { - var val = this.value.eval(ctx), rootpath; - - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - return new(tree.URL)(val, null); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { this.name = name, this.index = index, this.currentFileInfo = currentFileInfo }; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { - this.evaluating = false; - return variable; - } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.debugInfo = function(env, ctx) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx)+tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:/\\])/g, function(a){if(a=='\\') a = '\/'; return '\\' + a}) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // browser-only, contents of all the files - 'relativeUrls', // option - whether to adjust URL's to be relative - 'strictImports', // option - - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'mime', // browser only - mime type for sheet import - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' = absolute path to the entry file - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - tree.parseEnv.prototype.toSheet = function (path) { - var env = new tree.parseEnv(this); - env.href = path; - //env.title = path; - env.type = this.mime; - return env; - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits' // whether units need to evaluate correctly - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - } -})(require('./tree'));(function (tree) { - - tree.visitor = function(implementation) { - this._implementation = implementation; - }; - - tree.visitor.prototype = { - visit: function(node) { - - if (node instanceof Array) { - return this.visitArray(node); - } - - if (!node || !node.type) { - return node; - } - - var funcName = "visit" + node.type, - func = this._implementation[funcName], - visitArgs, newNode; - if (func) { - visitArgs = {visitDeeper: true}; - newNode = func.call(this._implementation, node, visitArgs); - if (this._implementation.isReplacing) { - node = newNode; - } - } - if ((!visitArgs || visitArgs.visitDeeper) && node && node.accept) { - node.accept(this); - } - funcName = funcName + "Out"; - if (this._implementation[funcName]) { - this._implementation[funcName](node); - } - return node; - }, - visitArray: function(nodes) { - var i, newNodes = []; - for(i = 0; i < nodes.length; i++) { - var evald = this.visit(nodes[i]); - if (evald instanceof Array) { - newNodes = newNodes.concat(evald); - } else { - newNodes.push(evald); - } - } - if (this._implementation.isReplacing) { - return newNodes; - } - return nodes; - } - }; - -})(require('./tree'));(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode; - - if (!importNode.css) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && !evaldImportNode.css) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - this._importer.push(importNode.getPath(), importNode.currentFileInfo, function (e, root, imported) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - if (imported && !importNode.options.multiple) { importNode.skip = imported; } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - new(tree.importVisitor)(importVisitor._importer, subFinish, env) - .run(root); - } else { - subFinish(); - } - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree'));(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - var paths = []; - this.contexts.push(paths); - - if (! rulesetNode.root) { - rulesetNode.joinSelectors(paths, context, rulesetNode.selectors); - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.ruleset.root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree'));(function (tree) { - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - for(i = 0; i < rulesetNode.rules.length; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rulesetNode.rules[i]); - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - for(i = 0; i < rulesetNode.paths.length; i++) { - var selectorPath = rulesetNode.paths[i], - selector = selectorPath[selectorPath.length-1]; - extendList = selector.extendList.slice(0).concat(allSelectorsExtendList).map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if (this.inInheritanceChain(targetExtend, extend)) { continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parents = [targetExtend, extend]; - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - inInheritanceChain: function (possibleParent, possibleChild) { - if (possibleParent === possibleChild) { - return true; - } - if (possibleChild.parents) { - if (this.inInheritanceChain(possibleParent, possibleChild.parents[0])) { - return true; - } - if (this.inInheritanceChain(possibleParent, possibleChild.parents[1])) { - return true; - } - } - return false; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (selectorPath[selectorPath.length-1].extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex == 0 && hackstackElementIndex == 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator == '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - return false; - }, - extendSelector:function (matches, selectorPath, replacementSelector) { - - //for a set of matches, replace each match with the replacement selector - - var currentSelectorPathIndex = 0, - currentSelectorPathElementIndex = 0, - path = [], - matchIndex, - selector, - firstElement, - match; - - for (matchIndex = 0; matchIndex < matches.length; matchIndex++) { - match = matches[matchIndex]; - selector = selectorPath[match.pathIndex]; - firstElement = new tree.Element( - match.initialCombinator, - replacementSelector.elements[0].value, - replacementSelector.elements[0].index - ); - - if (match.pathIndex > currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)) - )); - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selector.elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree'));// -// browser.js - client-side engine -// - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - less.tree.functions[func] = less.functions[func]; - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -// -// Watch mode -// -less.watch = function () { - if (!less.watchMode ){ - less.env = 'development'; - initRunningMode(); - } - return this.watchMode = true -}; - -less.unwatch = function () {clearInterval(less.watchTimer); return this.watchMode = false; }; - -function initRunningMode(){ - if (less.env === 'development') { - less.optimization = 0; - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (e, root, _, sheet, env) { - if (e) { - error(e, sheet.href); - } else if (root) { - createCSS(root.toCSS(less), sheet, env.lastModified); - } - }); - } - }, less.poll); - } else { - less.optimization = 3; - } -} - -if (/!watch/.test(location.hash)) { - less.watch(); -} - -var cache = null; - -if (less.env != 'development') { - try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; - } catch (_) {} -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - -// -// With this function, it's possible to alter variables and re-render -// CSS without reloading less-files -// -var session_cache = ''; -less.modifyVars = function(record) { - var str = session_cache; - for (var name in record) { - str += ((name.slice(0,1) === '@')? '' : '@') + name +': '+ - ((record[name].slice(-1) === ';')? record[name] : record[name] +';'); - } - new(less.Parser)(new less.tree.parseEnv(less)).parse(str, function (e, root) { - if (e) { - error(e, "session_cache"); - } else { - createCSS(root.toCSS(less), less.sheets[less.sheets.length - 1]); - } - }); -}; - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (e, root, _, sheet, env) { - if (e) { - return error(e, sheet.href); - } - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(less), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - var env = new less.tree.parseEnv(less); - env.filename = document.location.href.replace(/#.*$/, ''); - - new(less.Parser)(env).parse(styles[i].innerHTML || '', function (e, cssAST) { - if (e) { - return error(e, "inline"); - } - var css = cssAST.toCSS(less); - var style = styles[i]; - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function pathDiff(url, baseUrl) { - // diff between two paths to create a relative path - - var urlParts = extractUrlParts(url), - baseUrlParts = extractUrlParts(baseUrl), - i, max, urlDirectories, baseUrlDirectories, diff = ""; - if (urlParts.hostPart !== baseUrlParts.hostPart) { - return ""; - } - max = Math.max(baseUrlParts.directories.length, urlParts.directories.length); - for(i = 0; i < max; i++) { - if (baseUrlParts.directories[i] !== urlParts.directories[i]) { break; } - } - baseUrlDirectories = baseUrlParts.directories.slice(i); - urlDirectories = urlParts.directories.slice(i); - for(i = 0; i < baseUrlDirectories.length-1; i++) { - diff += "../"; - } - for(i = 0; i < urlDirectories.length-1; i++) { - diff += urlDirectories[i] + "/"; - } - return diff; -} - -function extractUrlParts(url, baseUrl) { - // urlParts[1] = protocol&hostname || / - // urlParts[2] = / if path relative to host base - // urlParts[3] = directories - // urlParts[4] = filename - // urlParts[5] = parameters - - var urlPartsRegex = /^((?:[a-z-]+:)?\/+?(?:[^\/\?#]*\/)|([\/\\]))?((?:[^\/\\\?#]*[\/\\])*)([^\/\\\?#]*)([#\?].*)?$/i, - urlParts = url.match(urlPartsRegex), - returner = {}, directories = [], i, baseUrlParts; - - if (!urlParts) { - throw new Error("Could not parse sheet href - '"+url+"'"); - } - - // Stylesheets in IE don't always return the full path - if (!urlParts[1] || urlParts[2]) { - baseUrlParts = baseUrl.match(urlPartsRegex); - if (!baseUrlParts) { - throw new Error("Could not parse page url - '"+baseUrl+"'"); - } - urlParts[1] = urlParts[1] || baseUrlParts[1] || ""; - if (!urlParts[2]) { - urlParts[3] = baseUrlParts[3] + urlParts[3]; - } - } - - if (urlParts[3]) { - directories = urlParts[3].replace(/\\/g, "/").split("/"); - - // extract out . before .. so .. doesn't absorb a non-directory - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".") { - directories.splice(i, 1); - i -= 1; - } - } - - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".." && i > 0) { - directories.splice(i-1, 2); - i -= 2; - } - } - } - - returner.hostPart = urlParts[1]; - returner.directories = directories; - returner.path = urlParts[1] + directories.join("/"); - returner.fileUrl = returner.path + (urlParts[4] || ""); - returner.url = returner.fileUrl + (urlParts[5] || ""); - return returner; -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - - // sheet may be set to the stylesheet for the initial load or a collection of properties including - // some env variables for imports - var hrefParts = extractUrlParts(sheet.href, window.location.href); - var href = hrefParts.url; - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - var env; - var newFileInfo = { - relativeUrls: less.relativeUrls, - currentDirectory: hrefParts.path, - filename: href - }; - - if (sheet instanceof less.tree.parseEnv) { - env = new less.tree.parseEnv(sheet); - newFileInfo.entryPath = env.currentFileInfo.entryPath; - newFileInfo.rootpath = env.currentFileInfo.rootpath; - newFileInfo.rootFilename = env.currentFileInfo.rootFilename; - } else { - env = new less.tree.parseEnv(less); - env.mime = sheet.type; - newFileInfo.entryPath = hrefParts.path; - newFileInfo.rootpath = less.rootpath || hrefParts.path; - newFileInfo.rootFilename = href; - } - - if (env.relativeUrls) { - //todo - this relies on option being set on less object rather than being passed in as an option - // - need an originalRootpath - if (less.rootpath) { - newFileInfo.rootpath = extractUrlParts(less.rootpath + pathDiff(hrefParts.path, newFileInfo.entryPath)).path; - } else { - newFileInfo.rootpath = hrefParts.path; - } - } - - xhr(href, sheet.type, function (data, lastModified) { - // Store data this session - session_cache += data.replace(/@import .+?;/ig, ''); - - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, null, data, sheet, { local: true, remaining: remaining }, href); - } else { - // Use remote copy (re-parse) - try { - env.contents[href] = data; // Updating content cache - env.paths = [hrefParts.path]; - env.currentFileInfo = newFileInfo; - - new(less.Parser)(env).parse(data, function (e, root) { - if (e) { return callback(e, null, null, sheet); } - try { - callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining }, href); - //TODO - there must be a better way? A generic less-to-css function that can both call error - //and removeNode where appropriate - //should also add tests - if (env.currentFileInfo.rootFilename === href) { - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } - } catch (e) { - callback(e, null, null, sheet); - } - }); - } catch (e) { - callback(e, null, null, sheet); - } - } - }, function (status, url) { - callback({ type: 'File', message: "'" + url + "' wasn't found (" + status + ")" }, null, null, sheet); - }); -} - -function extractId(href) { - return href.replace(/^[a-z-]+:\/+?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If this has already been inserted into the DOM, we may need to replace it - var oldCss = document.getElementById(id); - var keepOldCss = false; - - // Create a new stylesheet node for insertion or (if necessary) replacement - var css = document.createElement('style'); - css.setAttribute('type', 'text/css'); - if (sheet.media) { - css.setAttribute('media', sheet.media); - } - css.id = id; - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - css.appendChild(document.createTextNode(styles)); - - // If new contents match contents of oldCss, don't replace oldCss - keepOldCss = (oldCss !== null && oldCss.childNodes.length > 0 && css.childNodes.length > 0 && - oldCss.firstChild.nodeValue === css.firstChild.nodeValue); - } - - var head = document.getElementsByTagName('head')[0]; - - // If there is no oldCss, just append; otherwise, only append if we need - // to replace oldCss with an updated stylesheet - if (oldCss == null || keepOldCss === false) { - var nextEl = sheet && sheet.nextSibling || null; - (nextEl || document.getElementsByTagName('head')[0]).parentNode.insertBefore(css, nextEl); - } - if (oldCss && keepOldCss === false) { - head.removeChild(oldCss); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save'); - } - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? less.fileAsync : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - if (isFileProtocol && !less.fileAsync) { - if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new(XMLHttpRequest); - } else { - try { - return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX."); - return null; - } - } -} - -function removeNode(node) { - return node && node.parentNode.removeChild(node); -} - -function log(str) { - if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } -} - -function error(e, rootHref) { - var id = 'less-error-message:' + extractId(rootHref || ""); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, error = []; - var filename = e.filename || rootHref; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - '

    ' + '

    in ' + filenameNoPath + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] != undefined) { - error.push(template.replace(/\{line\}/, (parseInt(e.line) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - '
      ' + error.join('') + '
    '; - } else if (e.stack) { - content += '
    ' + e.stack.split('\n').slice(1).join('
    '); - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #dd6666;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.line {', - 'color: #ff0000;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); 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This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser, - rootFilename = env && env.filename; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed around by reference. - if (!(env instanceof tree.parseEnv)) { - env = new tree.parseEnv(env); - } - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, currentFileInfo, importOptions, callback) { - var parserImports = this; - this.queue.push(path); - - var fileParsedFunc = function (e, root, fullPath) { - parserImports.queue.splice(parserImports.queue.indexOf(path), 1); // Remove the path from the queue - - var importedPreviously = fullPath in parserImports.files || fullPath === rootFilename; - - parserImports.files[fullPath] = root; // Store the root - - if (e && !parserImports.error) { parserImports.error = e; } - - callback(e, root, importedPreviously, fullPath); - }; - - if (less.Parser.importer) { - less.Parser.importer(path, currentFileInfo, fileParsedFunc, env); - } else { - less.Parser.fileLoader(path, currentFileInfo, function(e, contents, fullPath, newFileInfo) { - if (e) {fileParsedFunc(e); return;} - - var newEnv = new tree.parseEnv(env); - - newEnv.currentFileInfo = newFileInfo; - newEnv.processImports = false; - newEnv.contents[fullPath] = contents; - - if (currentFileInfo.reference || importOptions.reference) { - newFileInfo.reference = true; - } - - if (importOptions.inline) { - fileParsedFunc(null, contents, fullPath); - } else { - new(less.Parser)(newEnv).parse(contents, function (e, root) { - fileParsedFunc(e, root, fullPath); - }); - } - }, env); - } - } - }; - - function save() { temp = chunks[j], memo = i, current = i; } - function restore() { chunks[j] = temp, i = memo, current = i; } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - function isWhitespace(c) { - // Could change to \s? - var code = c.charCodeAt(0); - return code === 32 || code === 10 || code === 9; - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, length; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - endIndex = i + chunks[j].length, - mem = i += length; - - while (i < endIndex) { - if (! isWhitespace(input.charAt(i))) { break; } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++; } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - return tok.test(chunks[j]); - } - } - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, inputStream) { - var n = index + 1, - line = null, - column = -1; - - while (--n >= 0 && inputStream.charAt(n) !== '\n') { - column++; - } - - if (typeof index === 'number') { - line = (inputStream.slice(0, index).match(/\n/g) || "").length; - } - - return { - line: line, - column: column - }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - callLine = e.call && getLocation(e.call, input).line, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = callLine + 1; - this.callExtract = lines[callLine]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, line, lines, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - parser.imports.contents[env.currentFileInfo.filename] = input; - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length;) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - } - } - - switch (c) { - case '{': - if (!inParam) { - level++; - chunk.push(c); - break; - } - /* falls through */ - case '}': - if (!inParam) { - level--; - chunk.push(c); - chunks[++j] = chunk = []; - break; - } - /* falls through */ - case '(': - if (!inParam) { - inParam = true; - chunk.push(c); - break; - } - /* falls through */ - case ')': - if (inParam) { - inParam = false; - chunk.push(c); - break; - } - /* falls through */ - default: - chunk.push(c); - } - - i++; - } - if (level !== 0) { - error = new(LessError)({ - index: i-1, - type: 'Parse', - message: (level > 0) ? "missing closing `}`" : "missing opening `{`", - filename: env.currentFileInfo.filename - }, env); - } - - return chunks.map(function (c) { return c.join(''); }); - })([[]]); - - if (error) { - return callback(new(LessError)(error, env)); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - return function (options, variables) { - options = options || {}; - var evaldRoot, - css, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, null, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - evaldRoot = evaluate.call(this, evalEnv); - - new(tree.joinSelectorVisitor)() - .run(evaldRoot); - - new(tree.processExtendsVisitor)() - .run(evaldRoot); - - new(tree.toCSSVisitor)({compress: Boolean(options.compress)}) - .run(evaldRoot); - - if (options.sourceMap) { - evaldRoot = new tree.sourceMapOutput( - { - writeSourceMap: options.writeSourceMap, - rootNode: evaldRoot, - contentsMap: parser.imports.contents, - sourceMapFilename: options.sourceMapFilename, - outputFilename: options.sourceMapOutputFilename, - sourceMapBasepath: options.sourceMapBasepath, - sourceMapRootpath: options.sourceMapRootpath, - outputSourceFiles: options.outputSourceFiles, - sourceMapGenerator: options.sourceMapGenerator - }); - } - - css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits)}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.cleancss && less.mode === 'node') { - return require('clean-css').process(css); - } else if (options.compress) { - return css.replace(/(^(\s)+)|((\s)+$)/g, ""); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - var loc = getLocation(i, input); - lines = input.split('\n'); - line = loc.line + 1; - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: loc.column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - return callback(e); - } - else { - return callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - return finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.extendRule) || $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/) || $(/^;+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') { return; } - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true, i, env.currentFileInfo); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment, false, i, env.currentFileInfo); - } - }, - - comments: function () { - var comment, comments = []; - - while(comment = $(this.comment)) { - comments.push(comment); - } - - return comments; - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++, e = true; } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; } - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - var color = tree.Color.fromKeyword(k); - if (color) { - return color; - } - return new(tree.Keyword)(k); - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) { return; } - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null; } - else { i += name.length; } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { - break; - } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted) || - $(this.entities.unicodeDescriptor); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) { - return; - } - - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - /*jshint eqnull:true */ - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) { - return; - } - - if (value = $(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - if (ud = $(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/)) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '`') { return; } - if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) { - error("You are using JavaScript, which has been disabled."); - } - - if (e) { $('~'); } - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1]; } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList = []; - - if (!$(isRule ? /^&:extend\(/ : /^:extend\(/)) { return; } - - do { - option = null; - elements = []; - while (true) { - option = $(/^(all)(?=\s*(\)|,))/); - if (option) { break; } - e = $(this.element); - if (!e) { break; } - elements.push(e); - } - - option = option && option[1]; - - extendList.push(new(tree.Extend)(new(tree.Selector)(elements), option, index)); - - } while($(",")); - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i), important = false; - - if (s !== '.' && s !== '#') { return; } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i, env.currentFileInfo)); - c = $('>'); - } - if ($('(')) { - args = this.mixin.args.call(this, true).args; - expect(')'); - } - - args = args || []; - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - - restore(); - }, - args: function (isCall) { - var expressions = [], argsSemiColon = [], isSemiColonSeperated, argsComma = [], expressionContainsNamed, name, nameLoop, value, arg, - returner = {args:null, variadic: false}; - while (true) { - if (isCall) { - arg = $(this.expression); - } else { - $(this.comments); - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value.length == 1) { - val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(this.expression); - nameLoop = (name = val.name); - } else if (!isCall && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($(',')) { - continue; - } - - if ($(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) { - return; - } - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - var argInfo = this.mixin.args.call(this, false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - $(this.comments); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) ||$(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) { return; } - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^()@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(')) { - if ((v = ($(this.selector))) && - $(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, i, env.currentFileInfo); } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|') { - i++; - while (input.charAt(i).match(/\s/)) { i++; } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - // - // A CSS selector (see selector below) - // with less extensions e.g. the ability to extend and guard - // - lessSelector: function () { - return this.selector(true); - }, - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function (isLess) { - var e, elements = [], c, extend, extendList = [], when, condition; - - while ((isLess && (extend = $(this.extend))) || (isLess && (when = $(/^when/))) || (e = $(this.element))) { - if (when) { - condition = expect(this.conditions, 'expected condition'); - } else if (condition) { - error("CSS guard can only be used at the end of selector"); - } else if (extend) { - extendList.push.apply(extendList, extend); - } else { - if (extendList.length) { - error("Extend can only be used at the end of selector"); - } - c = input.charAt(i); - elements.push(e); - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { - break; - } - } - - if (elements.length > 0) { return new(tree.Selector)(elements, extendList, condition, i, env.currentFileInfo); } - if (extendList.length) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - var key, val, op; - - if (! $('[')) { return; } - - if (!(key = $(this.entities.variableCurly))) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - if ((op = $(/^[|~*$^]?=/))) { - val = $(this.entities.quoted) || $(/^[0-9]+%/) || $(/^[\w-]+/) || $(this.entities.variableCurly); - } - - expect(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - while (s = $(this.lessSelector)) { - selectors.push(s); - $(this.comments); - if (! $(',')) { break; } - if (s.condition) { - error("Guards are only currently allowed on a single selector."); - } - $(this.comments); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) { - ruleset.debugInfo = debugInfo; - } - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, c = input.charAt(i), important, merge = false; - save(); - - if (c === '.' || c === '#' || c === '&') { return; } - - if (name = $(this.variable) || $(this.ruleProperty)) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || (name.charAt(0) === '@')) ? - ($(this.value) || $(this.anonymousValue)) : - ($(this.anonymousValue) || $(this.value)); - - - important = $(this.important); - if (name[name.length-1] === "+") { - merge = true; - name = name.substr(0, name.length - 1); - } - - if (value && $(this.end)) { - return new (tree.Rule)(name, value, important, merge, memo, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } - }, - anonymousValue: function () { - var match; - if (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j])) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import?\s+/); - - var options = (dir ? $(this.importOptions) : null) || {}; - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $('(')) { return null; } - do { - if (o = $(this.importOption)) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $(',')) { break; } - } - } while (o); - expect(')'); - return options; - }, - - importOption: function() { - var opt = $(/^(less|css|multiple|once|inline|reference)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = ($(this.entities.keyword) || $(this.entities.variable))) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.value); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null; } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break; } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break; } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - media.debugInfo = debugInfo; - } - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression, identifier; - - if (input.charAt(i) !== '@') { return; } - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - if (!name) { return; } - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@host": - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - identifier = ($(/^[^{]+/) || '').trim(); - if (identifier) { - name += " " + identifier; - } - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules, i, env.currentFileInfo); - } - } else { - if ((value = hasExpression ? $(this.expression) : $(this.entity)) && $(';')) { - var directive = new(tree.Directive)(name, value, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = []; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break; } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($('(')) { - if (a = $(this.addition)) { - e = new(tree.Expression)([a]); - expect(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced; - if (m = $(this.operand)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while (!peek(/^\/[*\/]/) && (op = ($('/') || $('*')))) { - if (a = $(this.operand)) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } else { - break; - } - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - if (m = $(this.multiplication)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while ((op = $(/^[-+]\s+/) || (!isSpaced && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while (peek(/^,\s*(not\s*)?\(/) && $(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true; } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|<=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-'); } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = []; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/) && (delim = $('/'))) { - entities.push(new(tree.Anonymous)(delim)); - } - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/)) { - return name[1]; - } - }, - ruleProperty: function () { - var name; - - if (name = $(/^(\*?-?[_a-zA-Z0-9-]+)\s*(\+?)\s*:/)) { - return name[1] + (name[2] || ""); - } - } - } - }; -}; - - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 256); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; } - else if (h * 2 < 1) { return m2; } - else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; } - else { return m1; } - } - - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - // filter: saturate(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if ((color.luma() * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - /*jshint loopfunc:true */ - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - if(!(val instanceof tree.Dimension)) { - throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") }; - } - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return this._math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _math: function (fn, unit, n) { - if (n instanceof tree.Dimension) { - /*jshint eqnull:true */ - return new(tree.Dimension)(fn(parseFloat(n.value)), unit == null ? n.unit : unit); - } else if (typeof(n) === 'number') { - return fn(n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - _minmax: function (isMin, args) { - args = Array.prototype.slice.call(args); - switch(args.length) { - case 0: throw { type: "Argument", message: "one or more arguments required" }; - case 1: return args[0]; - } - var i, j, current, currentUnified, referenceUnified, unit, - order = [], // elems only contains original argument values. - values = {}; // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - for (i = 0; i < args.length; i++) { - current = args[i]; - if (!(current instanceof tree.Dimension)) { - order.push(current); - continue; - } - currentUnified = current.unify(); - unit = currentUnified.unit.toString(); - j = values[unit]; - if (j === undefined) { - values[unit] = order.length; - order.push(current); - continue; - } - referenceUnified = order[j].unify(); - if ( isMin && currentUnified.value < referenceUnified.value || - !isMin && currentUnified.value > referenceUnified.value) { - order[j] = current; - } - } - if (order.length == 1) { - return order[0]; - } - args = order.map(function (a) { return a.toCSS(this.env); }) - .join(this.env.compress ? "," : ", "); - return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")"); - }, - min: function () { - return this._minmax(true, arguments); - }, - max: function () { - return this._minmax(false, arguments); - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - var colorCandidate = n.value, - returnColor; - returnColor = tree.Color.fromKeyword(colorCandidate); - if (returnColor) { - return returnColor; - } - if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) { - return new(tree.Color)(colorCandidate.slice(1)); - } - throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" }; - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - - /* Blending modes */ - - multiply: function(color1, color2) { - var r = color1.rgb[0] * color2.rgb[0] / 255; - var g = color1.rgb[1] * color2.rgb[1] / 255; - var b = color1.rgb[2] * color2.rgb[2] / 255; - return this.rgb(r, g, b); - }, - screen: function(color1, color2) { - var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - overlay: function(color1, color2) { - var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - softlight: function(color1, color2) { - var t = color2.rgb[0] * color1.rgb[0] / 255; - var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255; - t = color2.rgb[1] * color1.rgb[1] / 255; - var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255; - t = color2.rgb[2] * color1.rgb[2] / 255; - var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255; - return this.rgb(r, g, b); - }, - hardlight: function(color1, color2) { - var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255; - var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255; - var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - difference: function(color1, color2) { - var r = Math.abs(color1.rgb[0] - color2.rgb[0]); - var g = Math.abs(color1.rgb[1] - color2.rgb[1]); - var b = Math.abs(color1.rgb[2] - color2.rgb[2]); - return this.rgb(r, g, b); - }, - exclusion: function(color1, color2) { - var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255; - var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255; - var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - average: function(color1, color2) { - var r = (color1.rgb[0] + color2.rgb[0]) / 2; - var g = (color1.rgb[1] + color2.rgb[1]) / 2; - var b = (color1.rgb[2] + color2.rgb[2]) / 2; - return this.rgb(r, g, b); - }, - negation: function(color1, color2) { - var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]); - var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]); - var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]); - return this.rgb(r, g, b); - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - return Array.isArray(values.value) - ? values.value[index] : Array(values)[index]; - }, - length: function(values) { - var n = Array.isArray(values.value) ? values.value.length : 1; - return new tree.Dimension(n); - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require("fs"), - path = require("path"), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) { mimetype += ';base64'; } - } - else { - useBase64 = /;base64$/.test(mimetype); - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "'data:" + mimetype + ',' + buf + "'"; - return new(tree.URL)(new(tree.Anonymous)(uri)); - }, - - "svg-gradient": function(direction) { - - function throwArgumentDescriptor() { - throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" }; - } - - if (arguments.length < 3) { - throwArgumentDescriptor(); - } - var stops = Array.prototype.slice.call(arguments, 1), - gradientDirectionSvg, - gradientType = "linear", - rectangleDimension = 'x="0" y="0" width="1" height="1"', - useBase64 = true, - renderEnv = {compress: false}, - returner, - directionValue = direction.toCSS(renderEnv), - i, color, position, positionValue, alpha; - - switch (directionValue) { - case "to bottom": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - gradientType = "radial"; - gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" }; - } - returner = '' + - '' + - '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>'; - - for (i = 0; i < stops.length; i+= 1) { - if (stops[i].value) { - color = stops[i].value[0]; - position = stops[i].value[1]; - } else { - color = stops[i]; - position = undefined; - } - - if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) { - throwArgumentDescriptor(); - } - positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%"; - alpha = color.alpha; - returner += ''; - } - returner += '' + - ''; - - if (useBase64) { - // only works in node, needs interface to what is supported in environment - try { - returner = new Buffer(returner).toString('base64'); - } catch(e) { - useBase64 = false; - } - } - - returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'"; - return new(tree.URL)(new(tree.Anonymous)(returner)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -var mathFunctions = [{name:"ceil"}, {name:"floor"}, {name: "sqrt"}, {name:"abs"}, - {name:"tan", unit: ""}, {name:"sin", unit: ""}, {name:"cos", unit: ""}, - {name:"atan", unit: "rad"}, {name:"asin", unit: "rad"}, {name:"acos", unit: "rad"}], - createMathFunction = function(name, unit) { - return function(n) { - /*jshint eqnull:true */ - if (unit != null) { - n = n.unify(); - } - return this._math(Math[name], unit, n); - }; - }; - -for(var i = 0; i < mathFunctions.length; i++) { - tree.functions[mathFunctions[i].name] = createMathFunction(mathFunctions[i].name, mathFunctions[i].unit); -} - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); - -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); - -(function (tree) { - -tree.debugInfo = function(env, ctx, lineSeperator) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:/\\])/g, function (a) { - if (a == '\\') { - a = '\/'; - } - return '\\' + a; - }) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r; } - } - return null; -}; - -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false); }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -tree.toCSS = function (env) { - var strs = []; - this.genCSS(env, { - add: function(chunk, fileInfo, index) { - strs.push(chunk); - }, - isEmpty: function () { - return strs.length === 0; - } - }); - return strs.join(''); -}; - -tree.outputRuleset = function (env, output, rules) { - output.add((env.compress ? '{' : ' {\n')); - env.tabLevel = (env.tabLevel || 0) + 1; - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "); - for(var i = 0; i < rules.length; i++) { - output.add(tabRuleStr); - rules[i].genCSS(env, output); - output.add(env.compress ? '' : '\n'); - } - env.tabLevel--; - output.add(tabSetStr + "}"); -}; - -})(require('./tree')); - -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } - return this; - }, - genCSS: function (env, output) { - output.add("alpha(opacity="); - - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - - output.add(")"); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Anonymous = function (string, index, currentFileInfo, mapLines) { - this.value = string.value || string; - this.index = index; - this.mapLines = mapLines; - this.currentFileInfo = currentFileInfo; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - eval: function () { return this; }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - }, - genCSS: function (env, output) { - output.add(this.value, this.currentFileInfo, this.index, this.mapLines); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - }, - genCSS: function (env, output) { - output.add(this.key + '='); - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - this.args = visitor.visit(this.args); - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - /*jshint eqnull:true */ - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - return new tree.Call(this.name, args, this.index, this.currentFileInfo); - }, - - genCSS: function (env, output) { - output.add(this.name + "(", this.currentFileInfo, this.index); - - for(var i = 0; i < this.args.length; i++) { - this.args[i].genCSS(env, output); - if (i + 1 < this.args.length) { - output.add(", "); - } - } - - output.add(")"); - }, - - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; - -var transparentKeyword = "transparent"; - -tree.Color.prototype = { - type: "Color", - eval: function () { return this; }, - luma: function () { return (0.2126 * this.rgb[0] / 255) + (0.7152 * this.rgb[1] / 255) + (0.0722 * this.rgb[2] / 255); }, - - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress; - - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - if (this.alpha < 1.0) { - if (this.alpha === 0 && this.isTransparentKeyword) { - return transparentKeyword; - } - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.toRGB(); - - if (compress) { - var splitcolor = color.split(''); - - // Convert color to short format - if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) { - color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5]; - } - } - - return color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toRGB: function () { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - -tree.Color.fromKeyword = function(keyword) { - if (tree.colors.hasOwnProperty(keyword)) { - // detect named color - return new(tree.Color)(tree.colors[keyword].slice(1)); - } - if (keyword === transparentKeyword) { - var transparent = new(tree.Color)([0, 0, 0], 0); - transparent.isTransparentKeyword = true; - return transparent; - } -}; - - -})(require('../tree')); - -(function (tree) { - -tree.Comment = function (value, silent, index, currentFileInfo) { - this.value = value; - this.silent = !!silent; - this.currentFileInfo = currentFileInfo; -}; -tree.Comment.prototype = { - type: "Comment", - genCSS: function (env, output) { - if (this.debugInfo) { - output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index); - } - output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n - }, - toCSS: tree.toCSS, - isSilent: function(env) { - var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced), - isCompressed = env.compress && !this.value.match(/^\/\*!/); - return this.silent || isReference || isCompressed; - }, - eval: function () { return this; }, - markReferenced: function () { - this.isReferenced = true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<' || op === '<='; - case 0: return op === '=' || op === '>=' || op === '=<' || op === '<='; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); - -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - genCSS: function (env, output) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = this.value, - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && this.unit.isLength()) { - output.add(strValue); - return; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - output.add(strValue); - this.unit.genCSS(env, output); - }, - toCSS: tree.toCSS, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - /*jshint noempty:false */ - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a = this.unify(), b = other.unify(), - aValue = a.value, bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - if (!b.unit.isEmpty() && a.unit.compare(b.unit) !== 0) { - return -1; - } - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'm', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, targetUnit, derivedConversions = {}, applyUnit; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - applyUnit = function (atomicUnit, denominator) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(applyUnit); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - genCSS: function (env, output) { - if (this.numerator.length >= 1) { - output.add(this.numerator[0]); - } else - if (this.denominator.length >= 1) { - output.add(this.denominator[0]); - } else - if ((!env || !env.strictUnits) && this.backupUnit) { - output.add(this.backupUnit); - } - }, - toCSS: tree.toCSS, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isLength: function () { - return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/)); - }, - - isEmpty: function () { - return this.numerator.length === 0 && this.denominator.length === 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length === 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, result = {}, mapUnit; - - mapUnit = function (atomicUnit) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }; - - for (var groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(mapUnit); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Directive = function (name, value, index, currentFileInfo) { - this.name = name; - - if (Array.isArray(value)) { - this.rules = [new(tree.Ruleset)([], value)]; - this.rules[0].allowImports = true; - } else { - this.value = value; - } - this.currentFileInfo = currentFileInfo; - -}; -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - this.rules = visitor.visit(this.rules); - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name, this.currentFileInfo, this.index); - if (this.rules) { - tree.outputRuleset(env, output, this.rules); - } else { - output.add(' '); - this.value.genCSS(env, output); - output.add(';'); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var evaldDirective = this; - if (this.rules) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name, null, this.index, this.currentFileInfo); - evaldDirective.rules = [this.rules[0].eval(env)]; - evaldDirective.rules[0].root = true; - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - markReferenced: function () { - var i, rules; - this.isReferenced = true; - if (this.rules) { - rules = this.rules[0].rules; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Element = function (combinator, value, index, currentFileInfo) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - this.combinator = visitor.visit(this.combinator); - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index, - this.currentFileInfo); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env), this.currentFileInfo, this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value === '' && this.combinator.value.charAt(0) === '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - _outputMap: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : ' + ', - '~' : ' ~ ', - '>' : ' > ', - '|' : '|' - }, - _outputMapCompressed: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : '+', - '~' : '~', - '>' : '>', - '|' : '|' - }, - genCSS: function (env, output) { - output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - genCSS: function (env, output) { - for(var i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i + 1 < this.value.length) { - output.add(" "); - } - } - }, - toCSS: tree.toCSS, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i, - selectorElements; - - for(i = 0; i < selectors.length; i++) { - selectorElements = selectors[i].elements; - // duplicate the logic in genCSS function inside the selector node. - // future TODO - move both logics into the selector joiner visitor - if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") { - selectorElements[0].combinator.value = ' '; - } - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); - -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined || this.options.inline) { - this.css = !this.options.less || this.options.inline; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.path = visitor.visit(this.path); - if (!this.options.inline) { - this.root = visitor.visit(this.root); - } - }, - genCSS: function (env, output) { - if (this.css) { - output.add("@import ", this.currentFileInfo, this.index); - this.path.genCSS(env, output); - if (this.features) { - output.add(" "); - this.features.genCSS(env, output); - } - output.add(';'); - } - }, - toCSS: tree.toCSS, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - - if (!(path instanceof tree.URL)) { - if (rootpath) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath + pathValue; - } - } - path.value = env.normalizePath(path.value); - } - - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { return []; } - - if (this.options.inline) { - //todo needs to reference css file not import - var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true); - return this.features ? new(tree.Media)([contents], this.features.value) : [contents]; - } else if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - /*jshint loopfunc:true */ - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Keyword = function (value) { this.value = value; }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); - -(function (tree) { - -tree.Media = function (value, features, index, currentFileInfo) { - this.index = index; - this.currentFileInfo = currentFileInfo; - - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.rules = [new(tree.Ruleset)(selectors, value)]; - this.rules[0].allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.rules = visitor.visit(this.rules); - }, - genCSS: function (env, output) { - output.add('@media ', this.currentFileInfo, this.index); - this.features.genCSS(env, output); - tree.outputRuleset(env, output, this.rules); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)([], [], this.index, this.currentFileInfo); - if(this.debugInfo) { - this.rules[0].debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.rules[0]); - media.rules = [this.rules[0].eval(env)]; - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env); - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', this.index, this.currentFileInfo); - return [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)]; - }, - markReferenced: function () { - var i, rules = this.rules[0].rules; - this.isReferenced = true; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])]; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - this.arguments = visitor.visit(this.arguments); - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - if (mixin.matchArgs(args, env)) { - if (!mixin.matchCondition || mixin.matchCondition(args, env)) { - try { - if (!(mixin instanceof tree.mixin.Definition)) { - mixin = new tree.mixin.Definition("", [], mixin.rules, null, false); - mixin.originalRuleset = mixins[m].originalRuleset || mixins[m]; - } - //if (this.important) { - // isImportant = env.isImportant; - // env.isImportant = true; - //} - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - //if (this.important) { - // env.isImportant = isImportant; - //} - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - match = true; - } - } - if (match) { - if (!this.currentFileInfo || !this.currentFileInfo.reference) { - for (i = 0; i < rules.length; i++) { - rule = rules[i]; - if (rule.markReferenced) { - rule.markReferenced(); - } - } - } - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")`", - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1; } - else { return count; } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - this.params = visitor.visit(this.params); - this.rules = visitor.visit(this.rules); - this.condition = visitor.visit(this.condition); - }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - /*jshint boss:true */ - var frame = new(tree.Ruleset)(null, []), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.rules.unshift(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) { continue; } - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.rules.unshift(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - rules, ruleset; - - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules); - ruleset.originalRuleset = this; - ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames))); - if (important) { - ruleset = this.parent.makeImportant.apply(ruleset); - } - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] // the parameter variables - .concat(this.frames) // the parent namespace/mixin frames - .concat(env.frames)))) { // the current environment frames - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (! this.variadic) { - if (argsLength < this.required) { return false; } - if (argsLength > this.params.length) { return false; } - } else { - if (argsLength < (this.required - 1)) { return false; } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('-'); - this.value.genCSS(env, output); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { type: "Operation", - message: "Can't substract or divide a color from a number" }; - } - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - genCSS: function (env, output) { - this.operands[0].genCSS(env, output); - if (this.isSpaced) { - output.add(" "); - } - output.add(this.op); - if (this.isSpaced) { - output.add(" "); - } - this.operands[1].genCSS(env, output); - }, - toCSS: tree.toCSS -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('('); - this.value.genCSS(env, output); - output.add(')'); - }, - toCSS: tree.toCSS, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - genCSS: function (env, output) { - if (!this.escaped) { - output.add(this.quote, this.currentFileInfo, this.index); - } - output.add(this.value); - if (!this.escaped) { - output.add(this.quote); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.merge = merge; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - this.variable = (name.charAt(0) === '@'); -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index); - try { - this.value.genCSS(env, output); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index); - }, - toCSS: tree.toCSS, - eval: function (env) { - var strictMathBypass = false; - if (this.name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - return new(tree.Rule)(this.name, - this.value.eval(env), - this.important, - this.merge, - this.index, this.currentFileInfo, this.inline); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.merge, - this.index, this.currentFileInfo, this.inline); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - if (this.paths) { - for(var i = 0; i < this.paths.length; i++) { - this.paths[i] = visitor.visit(this.paths[i]); - } - } else { - this.selectors = visitor.visit(this.selectors); - } - this.rules = visitor.visit(this.rules); - }, - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env); }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules; - var rule; - var i; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // currrent selectors - if (!env.selectors) { - env.selectors = []; - } - env.selectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - /*jshint loopfunc:true */ - rules = ruleset.rules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - ruleset.rules.splice.apply(ruleset.rules, [i, 1].concat(rules)); - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (i = 0; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - env.selectors.shift(); - - if (env.mediaBlocks) { - for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var i, rules; - for (i = 0; i < this.rules.length; i++) { - if (this.rules[i] instanceof tree.Import) { - rules = this.rules[i].eval(env); - if (typeof rules.length === "number") { - this.rules.splice.apply(this.rules, [i, 1].concat(rules)); - i+= rules.length-1; - } else { - this.rules.splice(i, 1, rules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - matchCondition: function (args, env) { - var lastSelector = this.selectors[this.selectors.length-1]; - if (lastSelector.condition && - !lastSelector.condition.eval( - new(tree.evalEnv)(env, - env.frames))) { - return false; - } - return true; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (this._variables) { return this._variables; } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - return this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - }, - find: function (selector, self) { - self = self || this; - var rules = [], match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key]; } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - genCSS: function (env, output) { - var i, j, - ruleNodes = [], - rulesetNodes = [], - debugInfo, // Line number debugging - rule, - firstRuleset = true, - path; - - env.tabLevel = (env.tabLevel || 0); - - if (!this.root) { - env.tabLevel++; - } - - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "); - - for (i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - if (rule.rules || (rule instanceof tree.Media) || rule instanceof tree.Directive || (this.root && rule instanceof tree.Comment)) { - rulesetNodes.push(rule); - } else { - ruleNodes.push(rule); - } - } - - // If this is the root node, we don't render - // a selector, or {}. - if (!this.root) { - debugInfo = tree.debugInfo(env, this, tabSetStr); - - if (debugInfo) { - output.add(debugInfo); - output.add(tabSetStr); - } - - for(i = 0; i < this.paths.length; i++) { - path = this.paths[i]; - env.firstSelector = true; - for(j = 0; j < path.length; j++) { - path[j].genCSS(env, output); - env.firstSelector = false; - } - if (i + 1 < this.paths.length) { - output.add(env.compress ? ',' : (',\n' + tabSetStr)); - } - } - - output.add((env.compress ? '{' : ' {\n') + tabRuleStr); - } - - // Compile rules and rulesets - for (i = 0; i < ruleNodes.length; i++) { - rule = ruleNodes[i]; - - // @page{ directive ends up with root elements inside it, a mix of rules and rulesets - // In this instance we do not know whether it is the last property - if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) { - env.lastRule = true; - } - - if (rule.genCSS) { - rule.genCSS(env, output); - } else if (rule.value) { - output.add(rule.value.toString()); - } - - if (!env.lastRule) { - output.add(env.compress ? '' : ('\n' + tabRuleStr)); - } else { - env.lastRule = false; - } - } - - if (!this.root) { - output.add((env.compress ? '}' : '\n' + tabSetStr + '}')); - env.tabLevel--; - } - - for (i = 0; i < rulesetNodes.length; i++) { - if (ruleNodes.length && firstRuleset) { - output.add((env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr)); - } - if (!firstRuleset) { - output.add((env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr)); - } - firstRuleset = false; - rulesetNodes[i].genCSS(env, output); - } - - if (!output.isEmpty() && !env.compress && this.firstRoot) { - output.add('\n'); - } - }, - - toCSS: tree.toCSS, - - markReferenced: function () { - for (var s = 0; s < this.selectors.length; s++) { - this.selectors[s].markReferenced(); - } - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for (i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for (j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length === 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0, el.index, el.currentFileInfo)); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for (k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = selector.createDerived([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for (i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length === 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for (i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); - -(function (tree) { - -tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) { - this.elements = elements; - this.extendList = extendList || []; - this.condition = condition; - this.currentFileInfo = currentFileInfo || {}; - this.isReferenced = isReferenced; - if (!condition) { - this.evaldCondition = true; - } -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - this.elements = visitor.visit(this.elements); - this.extendList = visitor.visit(this.extendList); - this.condition = visitor.visit(this.condition); - }, - createDerived: function(elements, extendList, evaldCondition) { - /*jshint eqnull:true */ - evaldCondition = evaldCondition != null ? evaldCondition : this.evaldCondition; - var newSelector = new(tree.Selector)(elements, extendList || this.extendList, this.condition, this.index, this.currentFileInfo, this.isReferenced); - newSelector.evaldCondition = evaldCondition; - return newSelector; - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, max, i; - - oelements = other.elements.slice( - (other.elements.length && other.elements[0].value === "&") ? 1 : 0); - olen = oelements.length; - max = Math.min(len, olen); - - if (olen === 0 || len < olen) { - return false; - } else { - for (i = 0; i < max; i++) { - if (elements[i].value !== oelements[i].value) { - return false; - } - } - } - return true; - }, - eval: function (env) { - var evaldCondition = this.condition && this.condition.eval(env); - - return this.createDerived(this.elements.map(function (e) { - return e.eval(env); - }), this.extendList.map(function(extend) { - return extend.eval(env); - }), evaldCondition); - }, - genCSS: function (env, output) { - var i, element; - if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") { - output.add(' ', this.currentFileInfo, this.index); - } - if (!this._css) { - //TODO caching? speed comparison? - for(i = 0; i < this.elements.length; i++) { - element = this.elements[i]; - element.genCSS(env, output); - } - } - }, - toCSS: tree.toCSS, - markReferenced: function () { - this.isReferenced = true; - }, - getIsReferenced: function() { - return !this.currentFileInfo.reference || this.isReferenced; - }, - getIsOutput: function() { - return this.evaldCondition; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - eval: function () { return this; } -}; - -})(require('../tree')); - -(function (tree) { - -tree.URL = function (val, currentFileInfo) { - this.value = val; - this.currentFileInfo = currentFileInfo; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add("url("); - this.value.genCSS(env, output); - output.add(")"); - }, - toCSS: tree.toCSS, - eval: function (ctx) { - var val = this.value.eval(ctx), rootpath; - - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - val.value = ctx.normalizePath(val.value); - - return new(tree.URL)(val, null); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - genCSS: function (env, output) { - var i; - for(i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i+1 < this.value.length) { - output.add((env && env.compress) ? ',' : ', '); - } - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { - this.name = name; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') === 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { - this.evaluating = false; - return variable; - } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); - -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // browser-only, contents of all the files - 'relativeUrls', // option - whether to adjust URL's to be relative - 'rootpath', // option - rootpath to append to URL's - 'strictImports', // option - - 'insecure', // option - whether to allow imports from insecure ssl hosts - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true - 'mime', // browser only - mime type for sheet import - 'useFileCache', // browser only - whether to use the per file session cache - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' - absolute path to the entry file - // 'reference' - whether the file should not be output and only output parts that are referenced - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits', // whether units need to evaluate correctly - 'cleancss', // whether to compress with clean-css - 'sourceMap', // whether to output a source map - 'importMultiple'// whether we are currently importing multiple copies - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - tree.evalEnv.prototype.normalizePath = function( path ) { - var - segments = path.split("/").reverse(), - segment; - - path = []; - while (segments.length !== 0 ) { - segment = segments.pop(); - switch( segment ) { - case ".": - break; - case "..": - if ((path.length === 0) || (path[path.length - 1] === "..")) { - path.push( segment ); - } else { - path.pop(); - } - break; - default: - path.push( segment ); - break; - } - } - - return path.join("/"); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.visitor = function(implementation) { - this._implementation = implementation; - }; - - tree.visitor.prototype = { - visit: function(node) { - - if (node instanceof Array) { - return this.visitArray(node); - } - - if (!node || !node.type) { - return node; - } - - var funcName = "visit" + node.type, - func = this._implementation[funcName], - visitArgs, newNode; - if (func) { - visitArgs = {visitDeeper: true}; - newNode = func.call(this._implementation, node, visitArgs); - if (this._implementation.isReplacing) { - node = newNode; - } - } - if ((!visitArgs || visitArgs.visitDeeper) && node && node.accept) { - node.accept(this); - } - funcName = funcName + "Out"; - if (this._implementation[funcName]) { - this._implementation[funcName](node); - } - return node; - }, - visitArray: function(nodes) { - var i, newNodes = []; - for(i = 0; i < nodes.length; i++) { - var evald = this.visit(nodes[i]); - if (evald instanceof Array) { - evald = this.flatten(evald); - newNodes = newNodes.concat(evald); - } else { - newNodes.push(evald); - } - } - if (this._implementation.isReplacing) { - return newNodes; - } - return nodes; - }, - doAccept: function (node) { - node.accept(this); - }, - flatten: function(arr, master) { - return arr.reduce(this.flattenReduce.bind(this), master || []); - }, - flattenReduce: function(sum, element) { - if (element instanceof Array) { - sum = this.flatten(element, sum); - } else { - sum.push(element); - } - return sum; - } - }; - -})(require('./tree')); -(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode, - inlineCSS = importNode.options.inline; - - if (!importNode.css || inlineCSS) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - - if (importNode.options.multiple) { - env.importMultiple = true; - } - - this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, imported, fullPath) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - - if (imported && !env.importMultiple) { importNode.skip = imported; } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - importNode.importedFilename = fullPath; - if (!inlineCSS && !importNode.skip) { - new(tree.importVisitor)(importVisitor._importer, subFinish, env) - .run(root); - return; - } - } - - subFinish(); - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree')); -(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - var paths = []; - this.contexts.push(paths); - - if (! rulesetNode.root) { - rulesetNode.selectors = rulesetNode.selectors.filter(function(selector) { return selector.getIsOutput(); }); - if (rulesetNode.selectors.length === 0) { - rulesetNode.rules.length = 0; - } - rulesetNode.joinSelectors(paths, context, rulesetNode.selectors); - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree')); -(function (tree) { - tree.toCSSVisitor = function(env) { - this._visitor = new tree.visitor(this); - this._env = env; - }; - - tree.toCSSVisitor.prototype = { - isReplacing: true, - run: function (root) { - return this._visitor.visit(root); - }, - - visitRule: function (ruleNode, visitArgs) { - if (ruleNode.variable) { - return []; - } - return ruleNode; - }, - - visitMixinDefinition: function (mixinNode, visitArgs) { - return []; - }, - - visitExtend: function (extendNode, visitArgs) { - return []; - }, - - visitComment: function (commentNode, visitArgs) { - if (commentNode.isSilent(this._env)) { - return []; - } - return commentNode; - }, - - visitMedia: function(mediaNode, visitArgs) { - mediaNode.accept(this._visitor); - visitArgs.visitDeeper = false; - - if (!mediaNode.rules.length) { - return []; - } - return mediaNode; - }, - - visitDirective: function(directiveNode, visitArgs) { - if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) { - return []; - } - if (directiveNode.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (this.charset) { - if (directiveNode.debugInfo) { - var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n"); - comment.debugInfo = directiveNode.debugInfo; - return this._visitor.visit(comment); - } - return []; - } - this.charset = true; - } - return directiveNode; - }, - - checkPropertiesInRoot: function(rules) { - var ruleNode; - for(var i = 0; i < rules.length; i++) { - ruleNode = rules[i]; - if (ruleNode instanceof tree.Rule && !ruleNode.variable) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null}; - } - } - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var rule, rulesets = []; - if (rulesetNode.firstRoot) { - this.checkPropertiesInRoot(rulesetNode.rules); - } - if (! rulesetNode.root) { - - rulesetNode.paths = rulesetNode.paths - .filter(function(p) { - var i; - if (p[0].elements[0].combinator.value === ' ') { - p[0].elements[0].combinator = new(tree.Combinator)(''); - } - for(i = 0; i < p.length; i++) { - if (p[i].getIsReferenced() && p[i].getIsOutput()) { - return true; - } - return false; - } - }); - - // Compile rules and rulesets - for (var i = 0; i < rulesetNode.rules.length; i++) { - rule = rulesetNode.rules[i]; - - if (rule.rules) { - // visit because we are moving them out from being a child - rulesets.push(this._visitor.visit(rule)); - rulesetNode.rules.splice(i, 1); - i--; - continue; - } - } - // accept the visitor to remove rules and refactor itself - // then we can decide now whether we want it or not - if (rulesetNode.rules.length > 0) { - rulesetNode.accept(this._visitor); - } - visitArgs.visitDeeper = false; - - this._mergeRules(rulesetNode.rules); - this._removeDuplicateRules(rulesetNode.rules); - - // now decide whether we keep the ruleset - if (rulesetNode.rules.length > 0 && rulesetNode.paths.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } else { - rulesetNode.accept(this._visitor); - visitArgs.visitDeeper = false; - if (rulesetNode.firstRoot || rulesetNode.rules.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } - if (rulesets.length === 1) { - return rulesets[0]; - } - return rulesets; - }, - - _removeDuplicateRules: function(rules) { - // remove duplicates - var ruleCache = {}, - ruleList, rule, i; - for(i = rules.length - 1; i >= 0 ; i--) { - rule = rules[i]; - if (rule instanceof tree.Rule) { - if (!ruleCache[rule.name]) { - ruleCache[rule.name] = rule; - } else { - ruleList = ruleCache[rule.name]; - if (ruleList instanceof tree.Rule) { - ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)]; - } - var ruleCSS = rule.toCSS(this._env); - if (ruleList.indexOf(ruleCSS) !== -1) { - rules.splice(i, 1); - } else { - ruleList.push(ruleCSS); - } - } - } - } - }, - - _mergeRules: function (rules) { - var groups = {}, - parts, - rule, - key; - - for (var i = 0; i < rules.length; i++) { - rule = rules[i]; - - if ((rule instanceof tree.Rule) && rule.merge) { - key = [rule.name, - rule.important ? "!" : ""].join(","); - - if (!groups[key]) { - parts = groups[key] = []; - } else { - rules.splice(i--, 1); - } - - parts.push(rule); - } - } - - Object.keys(groups).map(function (k) { - parts = groups[k]; - - if (parts.length > 1) { - rule = parts[0]; - - rule.value = new (tree.Value)(parts.map(function (p) { - return p.value; - })); - } - }); - } - }; - -})(require('./tree')); -(function (tree) { - /*jshint loopfunc:true */ - - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - for(i = 0; i < rulesetNode.rules.length; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rulesetNode.rules[i]); - rulesetNode.extendOnEveryPath = true; - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - for(i = 0; i < rulesetNode.paths.length; i++) { - var selectorPath = rulesetNode.paths[i], - selector = selectorPath[selectorPath.length-1]; - extendList = selector.extendList.slice(0).concat(allSelectorsExtendList).map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if (this.inInheritanceChain(targetExtend, extend)) { continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parents = [targetExtend, extend]; - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - inInheritanceChain: function (possibleParent, possibleChild) { - if (possibleParent === possibleChild) { - return true; - } - if (possibleChild.parents) { - if (this.inInheritanceChain(possibleParent, possibleChild.parents[0])) { - return true; - } - if (this.inInheritanceChain(possibleParent, possibleChild.parents[1])) { - return true; - } - } - return false; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (rulesetNode.extendOnEveryPath || selectorPath[selectorPath.length-1].extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator === '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - elementValue1 = elementValue1.value; - elementValue2 = elementValue2.value; - if (elementValue1 instanceof tree.Selector) { - if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) { - return false; - } - for(var i = 0; i currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - newElements = selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)); - - if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) { - path[path.length - 1].elements = - path[path.length - 1].elements.concat(newElements); - } else { - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - newElements - )); - } - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.sourceMapOutput = function (options) { - this._css = []; - this._rootNode = options.rootNode; - this._writeSourceMap = options.writeSourceMap; - this._contentsMap = options.contentsMap; - this._sourceMapFilename = options.sourceMapFilename; - this._outputFilename = options.outputFilename; - this._sourceMapBasepath = options.sourceMapBasepath; - this._sourceMapRootpath = options.sourceMapRootpath; - this._outputSourceFiles = options.outputSourceFiles; - this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator; - - if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') { - this._sourceMapRootpath += '/'; - } - - this._lineNumber = 0; - this._column = 0; - }; - - tree.sourceMapOutput.prototype.normalizeFilename = function(filename) { - if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) { - filename = filename.substring(this._sourceMapBasepath.length); - if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') { - filename = filename.substring(1); - } - } - return (this._sourceMapRootpath || "") + filename.replace(/\\/g, '/'); - }; - - tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) { - - //ignore adding empty strings - if (!chunk) { - return; - } - - var lines, - sourceLines, - columns, - sourceColumns, - i; - - if (fileInfo) { - var inputSource = this._contentsMap[fileInfo.filename].substring(0, index); - sourceLines = inputSource.split("\n"); - sourceColumns = sourceLines[sourceLines.length-1]; - } - - lines = chunk.split("\n"); - columns = lines[lines.length-1]; - - if (fileInfo) { - if (!mapLines) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column}, - original: { line: sourceLines.length, column: sourceColumns.length}, - source: this.normalizeFilename(fileInfo.filename)}); - } else { - for(i = 0; i < lines.length; i++) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0}, - original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0}, - source: this.normalizeFilename(fileInfo.filename)}); - } - } - } - - if (lines.length === 1) { - this._column += columns.length; - } else { - this._lineNumber += lines.length - 1; - this._column = columns.length; - } - - this._css.push(chunk); - }; - - tree.sourceMapOutput.prototype.isEmpty = function() { - return this._css.length === 0; - }; - - tree.sourceMapOutput.prototype.toCSS = function(env) { - this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null }); - - if (this._outputSourceFiles) { - for(var filename in this._contentsMap) { - this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), this._contentsMap[filename]); - } - } - - this._rootNode.genCSS(env, this); - - if (this._css.length > 0) { - var sourceMapFilename, - sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); - - if (this._sourceMapFilename) { - sourceMapFilename = this.normalizeFilename(this._sourceMapFilename); - } - - if (this._writeSourceMap) { - this._writeSourceMap(sourceMapContent); - } else { - sourceMapFilename = "data:application/json," + encodeURIComponent(sourceMapContent); - } - - if (sourceMapFilename) { - this._css.push("/*# sourceMappingURL=" + sourceMapFilename + " */"); - } - } - - return this._css.join(''); - }; - -})(require('./tree')); - -// -// browser.js - client-side engine -// -/*global less, window, document, XMLHttpRequest, location */ - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -var logLevel = { - info: 2, - errors: 1, - none: 0 -}; - -// The amount of logging in the javascript console. -// 2 - Information and errors -// 1 - Errors -// 0 - None -// Defaults to 2 -less.logLevel = typeof(less.logLevel) != 'undefined' ? less.logLevel : logLevel.info; - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - less.tree.functions[func] = less.functions[func]; - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -var typePattern = /^text\/(x-)?less$/; -var cache = null; -var fileCache = {}; - -function log(str, level) { - if (less.env == 'development' && typeof(console) !== 'undefined' && less.logLevel >= level) { - console.log('less: ' + str); - } -} - -function extractId(href) { - return href.replace(/^[a-z-]+:\/+?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function errorConsole(e, rootHref) { - var template = '{line} {content}'; - var filename = e.filename || rootHref; - var errors = []; - var content = (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - " in " + filename + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n' + - errors.join('\n'); - } else if (e.stack) { - content += e.stack; - } - log(content, logLevel.errors); -} - -function createCSS(styles, sheet, lastModified) { - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If this has already been inserted into the DOM, we may need to replace it - var oldCss = document.getElementById(id); - var keepOldCss = false; - - // Create a new stylesheet node for insertion or (if necessary) replacement - var css = document.createElement('style'); - css.setAttribute('type', 'text/css'); - if (sheet.media) { - css.setAttribute('media', sheet.media); - } - css.id = id; - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - css.appendChild(document.createTextNode(styles)); - - // If new contents match contents of oldCss, don't replace oldCss - keepOldCss = (oldCss !== null && oldCss.childNodes.length > 0 && css.childNodes.length > 0 && - oldCss.firstChild.nodeValue === css.firstChild.nodeValue); - } - - var head = document.getElementsByTagName('head')[0]; - - // If there is no oldCss, just append; otherwise, only append if we need - // to replace oldCss with an updated stylesheet - if (oldCss === null || keepOldCss === false) { - var nextEl = sheet && sheet.nextSibling || null; - if (nextEl) { - nextEl.parentNode.insertBefore(css, nextEl); - } else { - head.appendChild(css); - } - } - if (oldCss && keepOldCss === false) { - oldCss.parentNode.removeChild(oldCss); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.', logLevel.info); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save', logLevel.errors); - } - } -} - -function errorHTML(e, rootHref) { - var id = 'less-error-message:' + extractId(rootHref || ""); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, errors = []; - var filename = e.filename || rootHref; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - '

    ' + '

    in ' + filenameNoPath + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - '
      ' + errors.join('') + '
    '; - } else if (e.stack) { - content += '
    ' + e.stack.split('\n').slice(1).join('
    '); - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #dd6666;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.line {', - 'color: #ff0000;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); - - if (less.env == 'development') { - timer = setInterval(function () { - if (document.body) { - if (document.getElementById(id)) { - document.body.replaceChild(elem, document.getElementById(id)); - } else { - document.body.insertBefore(elem, document.body.firstChild); - } - clearInterval(timer); - } - }, 10); - } -} - -function error(e, rootHref) { - if (!less.errorReporting || less.errorReporting === "html") { - errorHTML(e, rootHref); - } else if (less.errorReporting === "console") { - errorConsole(e, rootHref); - } else if (typeof less.errorReporting === 'function') { - less.errorReporting("add", e, rootHref); - } -} - -function removeErrorHTML(path) { - var node = document.getElementById('less-error-message:' + extractId(path)); - if (node) { - node.parentNode.removeChild(node); - } -} - -function removeErrorConsole(path) { - //no action -} - -function removeError(path) { - if (!less.errorReporting || less.errorReporting === "html") { - removeErrorHTML(path); - } else if (less.errorReporting === "console") { - removeErrorConsole(path); - } else if (typeof less.errorReporting === 'function') { - less.errorReporting("remove", path); - } -} - -function loadStyles(newVars) { - var styles = document.getElementsByTagName('style'), - style; - for (var i = 0; i < styles.length; i++) { - style = styles[i]; - if (style.type.match(typePattern)) { - var env = new less.tree.parseEnv(less), - lessText = style.innerHTML || ''; - env.filename = document.location.href.replace(/#.*$/, ''); - if (newVars) { - env.useFileCache = true; - lessText += "\n" + newVars; - } - - /*jshint loopfunc:true */ - // use closure to store current value of i - var callback = (function(style) { - return function (e, cssAST) { - if (e) { - return error(e, "inline"); - } - var css = cssAST.toCSS(less); - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }; - })(style); - new(less.Parser)(env).parse(lessText, callback); - } - } -} - -function extractUrlParts(url, baseUrl) { - // urlParts[1] = protocol&hostname || / - // urlParts[2] = / if path relative to host base - // urlParts[3] = directories - // urlParts[4] = filename - // urlParts[5] = parameters - - var urlPartsRegex = /^((?:[a-z-]+:)?\/+?(?:[^\/\?#]*\/)|([\/\\]))?((?:[^\/\\\?#]*[\/\\])*)([^\/\\\?#]*)([#\?].*)?$/i, - urlParts = url.match(urlPartsRegex), - returner = {}, directories = [], i, baseUrlParts; 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c=255-(255-a.rgb[0])*(255-b.rgb[0])/255,d=255-(255-a.rgb[1])*(255-b.rgb[1])/255,e=255-(255-a.rgb[2])*(255-b.rgb[2])/255;return this.rgb(c,d,e)},overlay:function(a,b){var c=a.rgb[0]<128?2*a.rgb[0]*b.rgb[0]/255:255-2*(255-a.rgb[0])*(255-b.rgb[0])/255,d=a.rgb[1]<128?2*a.rgb[1]*b.rgb[1]/255:255-2*(255-a.rgb[1])*(255-b.rgb[1])/255,e=a.rgb[2]<128?2*a.rgb[2]*b.rgb[2]/255:255-2*(255-a.rgb[2])*(255-b.rgb[2])/255;return this.rgb(c,d,e)},softlight:function(a,b){var c=b.rgb[0]*a.rgb[0]/255,d=c+a.rgb[0]*(255-(255-a.rgb[0])*(255-b.rgb[0])/255-c)/255;c=b.rgb[1]*a.rgb[1]/255;var e=c+a.rgb[1]*(255-(255-a.rgb[1])*(255-b.rgb[1])/255-c)/255;c=b.rgb[2]*a.rgb[2]/255;var f=c+a.rgb[2]*(255-(255-a.rgb[2])*(255-b.rgb[2])/255-c)/255;return this.rgb(d,e,f)},hardlight:function(a,b){var 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This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser, - rootFilename = env && env.filename; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed around by reference. - if (!(env instanceof tree.parseEnv)) { - env = new tree.parseEnv(env); - } - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, currentFileInfo, importOptions, callback) { - var parserImports = this; - this.queue.push(path); - - var fileParsedFunc = function (e, root, fullPath) { - parserImports.queue.splice(parserImports.queue.indexOf(path), 1); // Remove the path from the queue - - var importedPreviously = fullPath in parserImports.files || fullPath === rootFilename; - - parserImports.files[fullPath] = root; // Store the root - - if (e && !parserImports.error) { parserImports.error = e; } - - callback(e, root, importedPreviously, fullPath); - }; - - if (less.Parser.importer) { - less.Parser.importer(path, currentFileInfo, fileParsedFunc, env); - } else { - less.Parser.fileLoader(path, currentFileInfo, function(e, contents, fullPath, newFileInfo) { - if (e) {fileParsedFunc(e); return;} - - var newEnv = new tree.parseEnv(env); - - newEnv.currentFileInfo = newFileInfo; - newEnv.processImports = false; - newEnv.contents[fullPath] = contents; - - if (currentFileInfo.reference || importOptions.reference) { - newFileInfo.reference = true; - } - - if (importOptions.inline) { - fileParsedFunc(null, contents, fullPath); - } else { - new(less.Parser)(newEnv).parse(contents, function (e, root) { - fileParsedFunc(e, root, fullPath); - }); - } - }, env); - } - } - }; - - function save() { temp = chunks[j], memo = i, current = i; } - function restore() { chunks[j] = temp, i = memo, current = i; } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - function isWhitespace(c) { - // Could change to \s? - var code = c.charCodeAt(0); - return code === 32 || code === 10 || code === 9; - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, length; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - endIndex = i + chunks[j].length, - mem = i += length; - - while (i < endIndex) { - if (! isWhitespace(input.charAt(i))) { break; } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++; } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - return tok.test(chunks[j]); - } - } - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, inputStream) { - var n = index + 1, - line = null, - column = -1; - - while (--n >= 0 && inputStream.charAt(n) !== '\n') { - column++; - } - - if (typeof index === 'number') { - line = (inputStream.slice(0, index).match(/\n/g) || "").length; - } - - return { - line: line, - column: column - }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - callLine = e.call && getLocation(e.call, input).line, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = callLine + 1; - this.callExtract = lines[callLine]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, line, lines, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - parser.imports.contents[env.currentFileInfo.filename] = input; - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length;) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - } - } - - switch (c) { - case '{': - if (!inParam) { - level++; - chunk.push(c); - break; - } - /* falls through */ - case '}': - if (!inParam) { - level--; - chunk.push(c); - chunks[++j] = chunk = []; - break; - } - /* falls through */ - case '(': - if (!inParam) { - inParam = true; - chunk.push(c); - break; - } - /* falls through */ - case ')': - if (inParam) { - inParam = false; - chunk.push(c); - break; - } - /* falls through */ - default: - chunk.push(c); - } - - i++; - } - if (level !== 0) { - error = new(LessError)({ - index: i-1, - type: 'Parse', - message: (level > 0) ? "missing closing `}`" : "missing opening `{`", - filename: env.currentFileInfo.filename - }, env); - } - - return chunks.map(function (c) { return c.join(''); }); - })([[]]); - - if (error) { - return callback(new(LessError)(error, env)); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - return function (options, variables) { - options = options || {}; - var evaldRoot, - css, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, null, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - evaldRoot = evaluate.call(this, evalEnv); - - new(tree.joinSelectorVisitor)() - .run(evaldRoot); - - new(tree.processExtendsVisitor)() - .run(evaldRoot); - - new(tree.toCSSVisitor)({compress: Boolean(options.compress)}) - .run(evaldRoot); - - if (options.sourceMap) { - evaldRoot = new tree.sourceMapOutput( - { - writeSourceMap: options.writeSourceMap, - rootNode: evaldRoot, - contentsMap: parser.imports.contents, - sourceMapFilename: options.sourceMapFilename, - sourceMapURL: options.sourceMapURL, - outputFilename: options.sourceMapOutputFilename, - sourceMapBasepath: options.sourceMapBasepath, - sourceMapRootpath: options.sourceMapRootpath, - outputSourceFiles: options.outputSourceFiles, - sourceMapGenerator: options.sourceMapGenerator - }); - } - - css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits)}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.cleancss && less.mode === 'node') { - var CleanCSS = require('clean-css'); - //TODO would be nice for no advanced to be an option - return new CleanCSS({keepSpecialComments: '*', processImport: false, noRebase: true, noAdvanced: true}).minify(css); - } else if (options.compress) { - return css.replace(/(^(\s)+)|((\s)+$)/g, ""); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - var loc = getLocation(i, input); - lines = input.split('\n'); - line = loc.line + 1; - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: loc.column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - return callback(e); - } - else { - return callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - return finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.extendRule) || $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/) || $(/^;+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') { return; } - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true, i, env.currentFileInfo); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment, false, i, env.currentFileInfo); - } - }, - - comments: function () { - var comment, comments = []; - - while(comment = $(this.comment)) { - comments.push(comment); - } - - return comments; - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++, e = true; } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; } - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - var color = tree.Color.fromKeyword(k); - if (color) { - return color; - } - return new(tree.Keyword)(k); - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) { return; } - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null; } - else { i += name.length; } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { - break; - } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted) || - $(this.entities.unicodeDescriptor); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) { - return; - } - - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - /*jshint eqnull:true */ - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) { - return; - } - - if (value = $(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - if (ud = $(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/)) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '`') { return; } - if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) { - error("You are using JavaScript, which has been disabled."); - } - - if (e) { $('~'); } - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1]; } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList = []; - - if (!$(isRule ? /^&:extend\(/ : /^:extend\(/)) { return; } - - do { - option = null; - elements = []; - while (true) { - option = $(/^(all)(?=\s*(\)|,))/); - if (option) { break; } - e = $(this.element); - if (!e) { break; } - elements.push(e); - } - - option = option && option[1]; - - extendList.push(new(tree.Extend)(new(tree.Selector)(elements), option, index)); - - } while($(",")); - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i), important = false; - - if (s !== '.' && s !== '#') { return; } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i, env.currentFileInfo)); - c = $('>'); - } - if ($('(')) { - args = this.mixin.args.call(this, true).args; - expect(')'); - } - - args = args || []; - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - - restore(); - }, - args: function (isCall) { - var expressions = [], argsSemiColon = [], isSemiColonSeperated, argsComma = [], expressionContainsNamed, name, nameLoop, value, arg, - returner = {args:null, variadic: false}; - while (true) { - if (isCall) { - arg = $(this.expression); - } else { - $(this.comments); - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value.length == 1) { - val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(this.expression); - nameLoop = (name = val.name); - } else if (!isCall && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($(',')) { - continue; - } - - if ($(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) { - return; - } - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - var argInfo = this.mixin.args.call(this, false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - $(this.comments); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) ||$(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) { return; } - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^()@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(')) { - if ((v = ($(this.selector))) && - $(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, i, env.currentFileInfo); } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|') { - i++; - while (input.charAt(i).match(/\s/)) { i++; } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - // - // A CSS selector (see selector below) - // with less extensions e.g. the ability to extend and guard - // - lessSelector: function () { - return this.selector(true); - }, - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function (isLess) { - var e, elements = [], c, extend, extendList = [], when, condition; - - while ((isLess && (extend = $(this.extend))) || (isLess && (when = $(/^when/))) || (e = $(this.element))) { - if (when) { - condition = expect(this.conditions, 'expected condition'); - } else if (condition) { - error("CSS guard can only be used at the end of selector"); - } else if (extend) { - extendList.push.apply(extendList, extend); - } else { - if (extendList.length) { - error("Extend can only be used at the end of selector"); - } - c = input.charAt(i); - elements.push(e); - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { - break; - } - } - - if (elements.length > 0) { return new(tree.Selector)(elements, extendList, condition, i, env.currentFileInfo); } - if (extendList.length) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - var key, val, op; - - if (! $('[')) { return; } - - if (!(key = $(this.entities.variableCurly))) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - if ((op = $(/^[|~*$^]?=/))) { - val = $(this.entities.quoted) || $(/^[0-9]+%/) || $(/^[\w-]+/) || $(this.entities.variableCurly); - } - - expect(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - while (s = $(this.lessSelector)) { - selectors.push(s); - $(this.comments); - if (! $(',')) { break; } - if (s.condition) { - error("Guards are only currently allowed on a single selector."); - } - $(this.comments); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) { - ruleset.debugInfo = debugInfo; - } - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, c = input.charAt(i), important, merge = false; - save(); - - if (c === '.' || c === '#' || c === '&') { return; } - - if (name = $(this.variable) || $(this.ruleProperty)) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || (name.charAt(0) === '@')) ? - ($(this.value) || $(this.anonymousValue)) : - ($(this.anonymousValue) || $(this.value)); - - - important = $(this.important); - if (name[name.length-1] === "+") { - merge = true; - name = name.substr(0, name.length - 1); - } - - if (value && $(this.end)) { - return new (tree.Rule)(name, value, important, merge, memo, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } - }, - anonymousValue: function () { - var match; - if (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j])) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import?\s+/); - - var options = (dir ? $(this.importOptions) : null) || {}; - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $('(')) { return null; } - do { - if (o = $(this.importOption)) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $(',')) { break; } - } - } while (o); - expect(')'); - return options; - }, - - importOption: function() { - var opt = $(/^(less|css|multiple|once|inline|reference)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = ($(this.entities.keyword) || $(this.entities.variable))) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.value); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null; } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break; } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break; } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - media.debugInfo = debugInfo; - } - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression, identifier; - - if (input.charAt(i) !== '@') { return; } - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - if (!name) { return; } - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@host": - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - identifier = ($(/^[^{]+/) || '').trim(); - if (identifier) { - name += " " + identifier; - } - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules, i, env.currentFileInfo); - } - } else { - if ((value = hasExpression ? $(this.expression) : $(this.entity)) && $(';')) { - var directive = new(tree.Directive)(name, value, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = []; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break; } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($('(')) { - if (a = $(this.addition)) { - e = new(tree.Expression)([a]); - expect(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced; - if (m = $(this.operand)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while (!peek(/^\/[*\/]/) && (op = ($('/') || $('*')))) { - if (a = $(this.operand)) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } else { - break; - } - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - if (m = $(this.multiplication)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while ((op = $(/^[-+]\s+/) || (!isSpaced && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while (peek(/^,\s*(not\s*)?\(/) && $(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true; } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|<=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-'); } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = []; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/) && (delim = $('/'))) { - entities.push(new(tree.Anonymous)(delim)); - } - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/)) { - return name[1]; - } - }, - ruleProperty: function () { - var name; - - if (name = $(/^(\*?-?[_a-zA-Z0-9-]+)\s*(\+?)\s*:/)) { - return name[1] + (name[2] || ""); - } - } - } - }; -}; - - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 256); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; } - else if (h * 2 < 1) { return m2; } - else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; } - else { return m1; } - } - - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - // filter: saturate(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if ((color.luma() * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - /*jshint loopfunc:true */ - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - if(!(val instanceof tree.Dimension)) { - throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") }; - } - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return this._math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _math: function (fn, unit, n) { - if (n instanceof tree.Dimension) { - /*jshint eqnull:true */ - return new(tree.Dimension)(fn(parseFloat(n.value)), unit == null ? n.unit : unit); - } else if (typeof(n) === 'number') { - return fn(n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - _minmax: function (isMin, args) { - args = Array.prototype.slice.call(args); - switch(args.length) { - case 0: throw { type: "Argument", message: "one or more arguments required" }; - case 1: return args[0]; - } - var i, j, current, currentUnified, referenceUnified, unit, - order = [], // elems only contains original argument values. - values = {}; // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - for (i = 0; i < args.length; i++) { - current = args[i]; - if (!(current instanceof tree.Dimension)) { - order.push(current); - continue; - } - currentUnified = current.unify(); - unit = currentUnified.unit.toString(); - j = values[unit]; - if (j === undefined) { - values[unit] = order.length; - order.push(current); - continue; - } - referenceUnified = order[j].unify(); - if ( isMin && currentUnified.value < referenceUnified.value || - !isMin && currentUnified.value > referenceUnified.value) { - order[j] = current; - } - } - if (order.length == 1) { - return order[0]; - } - args = order.map(function (a) { return a.toCSS(this.env); }) - .join(this.env.compress ? "," : ", "); - return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")"); - }, - min: function () { - return this._minmax(true, arguments); - }, - max: function () { - return this._minmax(false, arguments); - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - var colorCandidate = n.value, - returnColor; - returnColor = tree.Color.fromKeyword(colorCandidate); - if (returnColor) { - return returnColor; - } - if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) { - return new(tree.Color)(colorCandidate.slice(1)); - } - throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" }; - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - - /* Blending modes */ - - multiply: function(color1, color2) { - var r = color1.rgb[0] * color2.rgb[0] / 255; - var g = color1.rgb[1] * color2.rgb[1] / 255; - var b = color1.rgb[2] * color2.rgb[2] / 255; - return this.rgb(r, g, b); - }, - screen: function(color1, color2) { - var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - overlay: function(color1, color2) { - var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - softlight: function(color1, color2) { - var t = color2.rgb[0] * color1.rgb[0] / 255; - var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255; - t = color2.rgb[1] * color1.rgb[1] / 255; - var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255; - t = color2.rgb[2] * color1.rgb[2] / 255; - var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255; - return this.rgb(r, g, b); - }, - hardlight: function(color1, color2) { - var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255; - var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255; - var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - difference: function(color1, color2) { - var r = Math.abs(color1.rgb[0] - color2.rgb[0]); - var g = Math.abs(color1.rgb[1] - color2.rgb[1]); - var b = Math.abs(color1.rgb[2] - color2.rgb[2]); - return this.rgb(r, g, b); - }, - exclusion: function(color1, color2) { - var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255; - var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255; - var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - average: function(color1, color2) { - var r = (color1.rgb[0] + color2.rgb[0]) / 2; - var g = (color1.rgb[1] + color2.rgb[1]) / 2; - var b = (color1.rgb[2] + color2.rgb[2]) / 2; - return this.rgb(r, g, b); - }, - negation: function(color1, color2) { - var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]); - var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]); - var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]); - return this.rgb(r, g, b); - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - return Array.isArray(values.value) - ? values.value[index] : Array(values)[index]; - }, - length: function(values) { - var n = Array.isArray(values.value) ? values.value.length : 1; - return new tree.Dimension(n); - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require("fs"), - path = require("path"), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) { mimetype += ';base64'; } - } - else { - useBase64 = /;base64$/.test(mimetype); - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "'data:" + mimetype + ',' + buf + "'"; - return new(tree.URL)(new(tree.Anonymous)(uri)); - }, - - "svg-gradient": function(direction) { - - function throwArgumentDescriptor() { - throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" }; - } - - if (arguments.length < 3) { - throwArgumentDescriptor(); - } - var stops = Array.prototype.slice.call(arguments, 1), - gradientDirectionSvg, - gradientType = "linear", - rectangleDimension = 'x="0" y="0" width="1" height="1"', - useBase64 = true, - renderEnv = {compress: false}, - returner, - directionValue = direction.toCSS(renderEnv), - i, color, position, positionValue, alpha; - - switch (directionValue) { - case "to bottom": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - gradientType = "radial"; - gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" }; - } - returner = '' + - '' + - '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>'; - - for (i = 0; i < stops.length; i+= 1) { - if (stops[i].value) { - color = stops[i].value[0]; - position = stops[i].value[1]; - } else { - color = stops[i]; - position = undefined; - } - - if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) { - throwArgumentDescriptor(); - } - positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%"; - alpha = color.alpha; - returner += ''; - } - returner += '' + - ''; - - if (useBase64) { - // only works in node, needs interface to what is supported in environment - try { - returner = new Buffer(returner).toString('base64'); - } catch(e) { - useBase64 = false; - } - } - - returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'"; - return new(tree.URL)(new(tree.Anonymous)(returner)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -var mathFunctions = [{name:"ceil"}, {name:"floor"}, {name: "sqrt"}, {name:"abs"}, - {name:"tan", unit: ""}, {name:"sin", unit: ""}, {name:"cos", unit: ""}, - {name:"atan", unit: "rad"}, {name:"asin", unit: "rad"}, {name:"acos", unit: "rad"}], - createMathFunction = function(name, unit) { - return function(n) { - /*jshint eqnull:true */ - if (unit != null) { - n = n.unify(); - } - return this._math(Math[name], unit, n); - }; - }; - -for(var i = 0; i < mathFunctions.length; i++) { - tree.functions[mathFunctions[i].name] = createMathFunction(mathFunctions[i].name, mathFunctions[i].unit); -} - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); - -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); - -(function (tree) { - -tree.debugInfo = function(env, ctx, lineSeperator) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:/\\])/g, function (a) { - if (a == '\\') { - a = '\/'; - } - return '\\' + a; - }) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r; } - } - return null; -}; - -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false); }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -tree.toCSS = function (env) { - var strs = []; - this.genCSS(env, { - add: function(chunk, fileInfo, index) { - strs.push(chunk); - }, - isEmpty: function () { - return strs.length === 0; - } - }); - return strs.join(''); -}; - -tree.outputRuleset = function (env, output, rules) { - output.add((env.compress ? '{' : ' {\n')); - env.tabLevel = (env.tabLevel || 0) + 1; - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "); - for(var i = 0; i < rules.length; i++) { - output.add(tabRuleStr); - rules[i].genCSS(env, output); - output.add(env.compress ? '' : '\n'); - } - env.tabLevel--; - output.add(tabSetStr + "}"); -}; - -})(require('./tree')); - -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } - return this; - }, - genCSS: function (env, output) { - output.add("alpha(opacity="); - - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - - output.add(")"); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Anonymous = function (string, index, currentFileInfo, mapLines) { - this.value = string.value || string; - this.index = index; - this.mapLines = mapLines; - this.currentFileInfo = currentFileInfo; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - eval: function () { return this; }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - }, - genCSS: function (env, output) { - output.add(this.value, this.currentFileInfo, this.index, this.mapLines); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - }, - genCSS: function (env, output) { - output.add(this.key + '='); - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - this.args = visitor.visit(this.args); - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - /*jshint eqnull:true */ - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - return new tree.Call(this.name, args, this.index, this.currentFileInfo); - }, - - genCSS: function (env, output) { - output.add(this.name + "(", this.currentFileInfo, this.index); - - for(var i = 0; i < this.args.length; i++) { - this.args[i].genCSS(env, output); - if (i + 1 < this.args.length) { - output.add(", "); - } - } - - output.add(")"); - }, - - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; - -var transparentKeyword = "transparent"; - -tree.Color.prototype = { - type: "Color", - eval: function () { return this; }, - luma: function () { return (0.2126 * this.rgb[0] / 255) + (0.7152 * this.rgb[1] / 255) + (0.0722 * this.rgb[2] / 255); }, - - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress; - - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - if (this.alpha < 1.0) { - if (this.alpha === 0 && this.isTransparentKeyword) { - return transparentKeyword; - } - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.toRGB(); - - if (compress) { - var splitcolor = color.split(''); - - // Convert color to short format - if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) { - color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5]; - } - } - - return color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toRGB: function () { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - -tree.Color.fromKeyword = function(keyword) { - if (tree.colors.hasOwnProperty(keyword)) { - // detect named color - return new(tree.Color)(tree.colors[keyword].slice(1)); - } - if (keyword === transparentKeyword) { - var transparent = new(tree.Color)([0, 0, 0], 0); - transparent.isTransparentKeyword = true; - return transparent; - } -}; - - -})(require('../tree')); - -(function (tree) { - -tree.Comment = function (value, silent, index, currentFileInfo) { - this.value = value; - this.silent = !!silent; - this.currentFileInfo = currentFileInfo; -}; -tree.Comment.prototype = { - type: "Comment", - genCSS: function (env, output) { - if (this.debugInfo) { - output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index); - } - output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n - }, - toCSS: tree.toCSS, - isSilent: function(env) { - var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced), - isCompressed = env.compress && !this.value.match(/^\/\*!/); - return this.silent || isReference || isCompressed; - }, - eval: function () { return this; }, - markReferenced: function () { - this.isReferenced = true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<' || op === '<='; - case 0: return op === '=' || op === '>=' || op === '=<' || op === '<='; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); - -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - genCSS: function (env, output) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = this.value, - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && this.unit.isLength()) { - output.add(strValue); - return; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - output.add(strValue); - this.unit.genCSS(env, output); - }, - toCSS: tree.toCSS, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - /*jshint noempty:false */ - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a = this.unify(), b = other.unify(), - aValue = a.value, bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - if (!b.unit.isEmpty() && a.unit.compare(b.unit) !== 0) { - return -1; - } - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'm', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, targetUnit, derivedConversions = {}, applyUnit; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - applyUnit = function (atomicUnit, denominator) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(applyUnit); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - genCSS: function (env, output) { - if (this.numerator.length >= 1) { - output.add(this.numerator[0]); - } else - if (this.denominator.length >= 1) { - output.add(this.denominator[0]); - } else - if ((!env || !env.strictUnits) && this.backupUnit) { - output.add(this.backupUnit); - } - }, - toCSS: tree.toCSS, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isLength: function () { - return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/)); - }, - - isEmpty: function () { - return this.numerator.length === 0 && this.denominator.length === 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length === 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, result = {}, mapUnit; - - mapUnit = function (atomicUnit) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }; - - for (var groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(mapUnit); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Directive = function (name, value, index, currentFileInfo) { - this.name = name; - - if (Array.isArray(value)) { - this.rules = [new(tree.Ruleset)([], value)]; - this.rules[0].allowImports = true; - } else { - this.value = value; - } - this.currentFileInfo = currentFileInfo; - -}; -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - this.rules = visitor.visit(this.rules); - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name, this.currentFileInfo, this.index); - if (this.rules) { - tree.outputRuleset(env, output, this.rules); - } else { - output.add(' '); - this.value.genCSS(env, output); - output.add(';'); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var evaldDirective = this; - if (this.rules) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name, null, this.index, this.currentFileInfo); - evaldDirective.rules = [this.rules[0].eval(env)]; - evaldDirective.rules[0].root = true; - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - markReferenced: function () { - var i, rules; - this.isReferenced = true; - if (this.rules) { - rules = this.rules[0].rules; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Element = function (combinator, value, index, currentFileInfo) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - this.combinator = visitor.visit(this.combinator); - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index, - this.currentFileInfo); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env), this.currentFileInfo, this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value === '' && this.combinator.value.charAt(0) === '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - _outputMap: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : ' + ', - '~' : ' ~ ', - '>' : ' > ', - '|' : '|' - }, - _outputMapCompressed: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : '+', - '~' : '~', - '>' : '>', - '|' : '|' - }, - genCSS: function (env, output) { - output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - genCSS: function (env, output) { - for(var i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i + 1 < this.value.length) { - output.add(" "); - } - } - }, - toCSS: tree.toCSS, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i, - selectorElements; - - for(i = 0; i < selectors.length; i++) { - selectorElements = selectors[i].elements; - // duplicate the logic in genCSS function inside the selector node. - // future TODO - move both logics into the selector joiner visitor - if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") { - selectorElements[0].combinator.value = ' '; - } - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); - -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined || this.options.inline) { - this.css = !this.options.less || this.options.inline; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.path = visitor.visit(this.path); - if (!this.options.inline) { - this.root = visitor.visit(this.root); - } - }, - genCSS: function (env, output) { - if (this.css) { - output.add("@import ", this.currentFileInfo, this.index); - this.path.genCSS(env, output); - if (this.features) { - output.add(" "); - this.features.genCSS(env, output); - } - output.add(';'); - } - }, - toCSS: tree.toCSS, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - - if (!(path instanceof tree.URL)) { - if (rootpath) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath + pathValue; - } - } - path.value = env.normalizePath(path.value); - } - - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { return []; } - - if (this.options.inline) { - //todo needs to reference css file not import - var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true); - return this.features ? new(tree.Media)([contents], this.features.value) : [contents]; - } else if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - /*jshint loopfunc:true */ - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Keyword = function (value) { this.value = value; }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); - -(function (tree) { - -tree.Media = function (value, features, index, currentFileInfo) { - this.index = index; - this.currentFileInfo = currentFileInfo; - - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.rules = [new(tree.Ruleset)(selectors, value)]; - this.rules[0].allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.rules = visitor.visit(this.rules); - }, - genCSS: function (env, output) { - output.add('@media ', this.currentFileInfo, this.index); - this.features.genCSS(env, output); - tree.outputRuleset(env, output, this.rules); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)([], [], this.index, this.currentFileInfo); - if(this.debugInfo) { - this.rules[0].debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.rules[0]); - media.rules = [this.rules[0].eval(env)]; - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env); - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', this.index, this.currentFileInfo); - return [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)]; - }, - markReferenced: function () { - var i, rules = this.rules[0].rules; - this.isReferenced = true; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])]; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - this.arguments = visitor.visit(this.arguments); - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - if (mixin.matchArgs(args, env)) { - if (!mixin.matchCondition || mixin.matchCondition(args, env)) { - try { - if (!(mixin instanceof tree.mixin.Definition)) { - mixin = new tree.mixin.Definition("", [], mixin.rules, null, false); - mixin.originalRuleset = mixins[m].originalRuleset || mixins[m]; - } - //if (this.important) { - // isImportant = env.isImportant; - // env.isImportant = true; - //} - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - //if (this.important) { - // env.isImportant = isImportant; - //} - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - match = true; - } - } - if (match) { - if (!this.currentFileInfo || !this.currentFileInfo.reference) { - for (i = 0; i < rules.length; i++) { - rule = rules[i]; - if (rule.markReferenced) { - rule.markReferenced(); - } - } - } - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")`", - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1; } - else { return count; } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - this.params = visitor.visit(this.params); - this.rules = visitor.visit(this.rules); - this.condition = visitor.visit(this.condition); - }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - /*jshint boss:true */ - var frame = new(tree.Ruleset)(null, []), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.rules.unshift(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) { continue; } - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.rules.unshift(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - rules, ruleset; - - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules); - ruleset.originalRuleset = this; - ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames))); - if (important) { - ruleset = this.parent.makeImportant.apply(ruleset); - } - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] // the parameter variables - .concat(this.frames) // the parent namespace/mixin frames - .concat(env.frames)))) { // the current environment frames - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (! this.variadic) { - if (argsLength < this.required) { return false; } - if (argsLength > this.params.length) { return false; } - } else { - if (argsLength < (this.required - 1)) { return false; } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('-'); - this.value.genCSS(env, output); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { type: "Operation", - message: "Can't substract or divide a color from a number" }; - } - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - genCSS: function (env, output) { - this.operands[0].genCSS(env, output); - if (this.isSpaced) { - output.add(" "); - } - output.add(this.op); - if (this.isSpaced) { - output.add(" "); - } - this.operands[1].genCSS(env, output); - }, - toCSS: tree.toCSS -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('('); - this.value.genCSS(env, output); - output.add(')'); - }, - toCSS: tree.toCSS, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - genCSS: function (env, output) { - if (!this.escaped) { - output.add(this.quote, this.currentFileInfo, this.index); - } - output.add(this.value); - if (!this.escaped) { - output.add(this.quote); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.merge = merge; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - this.variable = (name.charAt(0) === '@'); -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index); - try { - this.value.genCSS(env, output); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index); - }, - toCSS: tree.toCSS, - eval: function (env) { - var strictMathBypass = false; - if (this.name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - return new(tree.Rule)(this.name, - this.value.eval(env), - this.important, - this.merge, - this.index, this.currentFileInfo, this.inline); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.merge, - this.index, this.currentFileInfo, this.inline); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - if (this.paths) { - for(var i = 0; i < this.paths.length; i++) { - this.paths[i] = visitor.visit(this.paths[i]); - } - } else { - this.selectors = visitor.visit(this.selectors); - } - this.rules = visitor.visit(this.rules); - }, - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env); }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules; - var rule; - var i; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // currrent selectors - if (!env.selectors) { - env.selectors = []; - } - env.selectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - /*jshint loopfunc:true */ - rules = ruleset.rules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - ruleset.rules.splice.apply(ruleset.rules, [i, 1].concat(rules)); - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (i = 0; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - env.selectors.shift(); - - if (env.mediaBlocks) { - for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var i, rules; - for (i = 0; i < this.rules.length; i++) { - if (this.rules[i] instanceof tree.Import) { - rules = this.rules[i].eval(env); - if (typeof rules.length === "number") { - this.rules.splice.apply(this.rules, [i, 1].concat(rules)); - i+= rules.length-1; - } else { - this.rules.splice(i, 1, rules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - matchCondition: function (args, env) { - var lastSelector = this.selectors[this.selectors.length-1]; - if (lastSelector.condition && - !lastSelector.condition.eval( - new(tree.evalEnv)(env, - env.frames))) { - return false; - } - return true; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (this._variables) { return this._variables; } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - return this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - }, - find: function (selector, self) { - self = self || this; - var rules = [], match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key]; } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > match) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(match)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - genCSS: function (env, output) { - var i, j, - ruleNodes = [], - rulesetNodes = [], - debugInfo, // Line number debugging - rule, - firstRuleset = true, - path; - - env.tabLevel = (env.tabLevel || 0); - - if (!this.root) { - env.tabLevel++; - } - - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "); - - for (i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - if (rule.rules || (rule instanceof tree.Media) || rule instanceof tree.Directive || (this.root && rule instanceof tree.Comment)) { - rulesetNodes.push(rule); - } else { - ruleNodes.push(rule); - } - } - - // If this is the root node, we don't render - // a selector, or {}. - if (!this.root) { - debugInfo = tree.debugInfo(env, this, tabSetStr); - - if (debugInfo) { - output.add(debugInfo); - output.add(tabSetStr); - } - - for(i = 0; i < this.paths.length; i++) { - path = this.paths[i]; - env.firstSelector = true; - for(j = 0; j < path.length; j++) { - path[j].genCSS(env, output); - env.firstSelector = false; - } - if (i + 1 < this.paths.length) { - output.add(env.compress ? ',' : (',\n' + tabSetStr)); - } - } - - output.add((env.compress ? '{' : ' {\n') + tabRuleStr); - } - - // Compile rules and rulesets - for (i = 0; i < ruleNodes.length; i++) { - rule = ruleNodes[i]; - - // @page{ directive ends up with root elements inside it, a mix of rules and rulesets - // In this instance we do not know whether it is the last property - if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) { - env.lastRule = true; - } - - if (rule.genCSS) { - rule.genCSS(env, output); - } else if (rule.value) { - output.add(rule.value.toString()); - } - - if (!env.lastRule) { - output.add(env.compress ? '' : ('\n' + tabRuleStr)); - } else { - env.lastRule = false; - } - } - - if (!this.root) { - output.add((env.compress ? '}' : '\n' + tabSetStr + '}')); - env.tabLevel--; - } - - for (i = 0; i < rulesetNodes.length; i++) { - if (ruleNodes.length && firstRuleset) { - output.add((env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr)); - } - if (!firstRuleset) { - output.add((env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr)); - } - firstRuleset = false; - rulesetNodes[i].genCSS(env, output); - } - - if (!output.isEmpty() && !env.compress && this.firstRoot) { - output.add('\n'); - } - }, - - toCSS: tree.toCSS, - - markReferenced: function () { - for (var s = 0; s < this.selectors.length; s++) { - this.selectors[s].markReferenced(); - } - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for (i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for (j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length === 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0, el.index, el.currentFileInfo)); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for (k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = selector.createDerived([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for (i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length === 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for (i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); - -(function (tree) { - -tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) { - this.elements = elements; - this.extendList = extendList || []; - this.condition = condition; - this.currentFileInfo = currentFileInfo || {}; - this.isReferenced = isReferenced; - if (!condition) { - this.evaldCondition = true; - } -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - this.elements = visitor.visit(this.elements); - this.extendList = visitor.visit(this.extendList); - this.condition = visitor.visit(this.condition); - }, - createDerived: function(elements, extendList, evaldCondition) { - /*jshint eqnull:true */ - evaldCondition = evaldCondition != null ? evaldCondition : this.evaldCondition; - var newSelector = new(tree.Selector)(elements, extendList || this.extendList, this.condition, this.index, this.currentFileInfo, this.isReferenced); - newSelector.evaldCondition = evaldCondition; - return newSelector; - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, max, i; - - oelements = other.elements.slice( - (other.elements.length && other.elements[0].value === "&") ? 1 : 0); - olen = oelements.length; - max = Math.min(len, olen); - - if (olen === 0 || len < olen) { - return 0; - } else { - for (i = 0; i < max; i++) { - if (elements[i].value !== oelements[i].value) { - return 0; - } - } - } - return max; // return number of matched selectors - }, - eval: function (env) { - var evaldCondition = this.condition && this.condition.eval(env); - - return this.createDerived(this.elements.map(function (e) { - return e.eval(env); - }), this.extendList.map(function(extend) { - return extend.eval(env); - }), evaldCondition); - }, - genCSS: function (env, output) { - var i, element; - if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") { - output.add(' ', this.currentFileInfo, this.index); - } - if (!this._css) { - //TODO caching? speed comparison? - for(i = 0; i < this.elements.length; i++) { - element = this.elements[i]; - element.genCSS(env, output); - } - } - }, - toCSS: tree.toCSS, - markReferenced: function () { - this.isReferenced = true; - }, - getIsReferenced: function() { - return !this.currentFileInfo.reference || this.isReferenced; - }, - getIsOutput: function() { - return this.evaldCondition; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - eval: function () { return this; } -}; - -})(require('../tree')); - -(function (tree) { - -tree.URL = function (val, currentFileInfo) { - this.value = val; - this.currentFileInfo = currentFileInfo; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add("url("); - this.value.genCSS(env, output); - output.add(")"); - }, - toCSS: tree.toCSS, - eval: function (ctx) { - var val = this.value.eval(ctx), rootpath; - - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - val.value = ctx.normalizePath(val.value); - - return new(tree.URL)(val, null); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - genCSS: function (env, output) { - var i; - for(i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i+1 < this.value.length) { - output.add((env && env.compress) ? ',' : ', '); - } - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { - this.name = name; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') === 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { - this.evaluating = false; - return variable; - } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); - -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // browser-only, contents of all the files - 'relativeUrls', // option - whether to adjust URL's to be relative - 'rootpath', // option - rootpath to append to URL's - 'strictImports', // option - - 'insecure', // option - whether to allow imports from insecure ssl hosts - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true - 'mime', // browser only - mime type for sheet import - 'useFileCache', // browser only - whether to use the per file session cache - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' - absolute path to the entry file - // 'reference' - whether the file should not be output and only output parts that are referenced - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits', // whether units need to evaluate correctly - 'cleancss', // whether to compress with clean-css - 'sourceMap', // whether to output a source map - 'importMultiple'// whether we are currently importing multiple copies - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - tree.evalEnv.prototype.normalizePath = function( path ) { - var - segments = path.split("/").reverse(), - segment; - - path = []; - while (segments.length !== 0 ) { - segment = segments.pop(); - switch( segment ) { - case ".": - break; - case "..": - if ((path.length === 0) || (path[path.length - 1] === "..")) { - path.push( segment ); - } else { - path.pop(); - } - break; - default: - path.push( segment ); - break; - } - } - - return path.join("/"); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.visitor = function(implementation) { - this._implementation = implementation; - }; - - tree.visitor.prototype = { - visit: function(node) { - - if (node instanceof Array) { - return this.visitArray(node); - } - - if (!node || !node.type) { - return node; - } - - var funcName = "visit" + node.type, - func = this._implementation[funcName], - visitArgs, newNode; - if (func) { - visitArgs = {visitDeeper: true}; - newNode = func.call(this._implementation, node, visitArgs); - if (this._implementation.isReplacing) { - node = newNode; - } - } - if ((!visitArgs || visitArgs.visitDeeper) && node && node.accept) { - node.accept(this); - } - funcName = funcName + "Out"; - if (this._implementation[funcName]) { - this._implementation[funcName](node); - } - return node; - }, - visitArray: function(nodes) { - var i, newNodes = []; - for(i = 0; i < nodes.length; i++) { - var evald = this.visit(nodes[i]); - if (evald instanceof Array) { - evald = this.flatten(evald); - newNodes = newNodes.concat(evald); - } else { - newNodes.push(evald); - } - } - if (this._implementation.isReplacing) { - return newNodes; - } - return nodes; - }, - doAccept: function (node) { - node.accept(this); - }, - flatten: function(arr, master) { - return arr.reduce(this.flattenReduce.bind(this), master || []); - }, - flattenReduce: function(sum, element) { - if (element instanceof Array) { - sum = this.flatten(element, sum); - } else { - sum.push(element); - } - return sum; - } - }; - -})(require('./tree')); -(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode, - inlineCSS = importNode.options.inline; - - if (!importNode.css || inlineCSS) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - - if (importNode.options.multiple) { - env.importMultiple = true; - } - - this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, imported, fullPath) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - - if (imported && !env.importMultiple) { importNode.skip = imported; } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - importNode.importedFilename = fullPath; - if (!inlineCSS && !importNode.skip) { - new(tree.importVisitor)(importVisitor._importer, subFinish, env) - .run(root); - return; - } - } - - subFinish(); - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree')); -(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - var paths = []; - this.contexts.push(paths); - - if (! rulesetNode.root) { - rulesetNode.selectors = rulesetNode.selectors.filter(function(selector) { return selector.getIsOutput(); }); - if (rulesetNode.selectors.length === 0) { - rulesetNode.rules.length = 0; - } - rulesetNode.joinSelectors(paths, context, rulesetNode.selectors); - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree')); -(function (tree) { - tree.toCSSVisitor = function(env) { - this._visitor = new tree.visitor(this); - this._env = env; - }; - - tree.toCSSVisitor.prototype = { - isReplacing: true, - run: function (root) { - return this._visitor.visit(root); - }, - - visitRule: function (ruleNode, visitArgs) { - if (ruleNode.variable) { - return []; - } - return ruleNode; - }, - - visitMixinDefinition: function (mixinNode, visitArgs) { - return []; - }, - - visitExtend: function (extendNode, visitArgs) { - return []; - }, - - visitComment: function (commentNode, visitArgs) { - if (commentNode.isSilent(this._env)) { - return []; - } - return commentNode; - }, - - visitMedia: function(mediaNode, visitArgs) { - mediaNode.accept(this._visitor); - visitArgs.visitDeeper = false; - - if (!mediaNode.rules.length) { - return []; - } - return mediaNode; - }, - - visitDirective: function(directiveNode, visitArgs) { - if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) { - return []; - } - if (directiveNode.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (this.charset) { - if (directiveNode.debugInfo) { - var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n"); - comment.debugInfo = directiveNode.debugInfo; - return this._visitor.visit(comment); - } - return []; - } - this.charset = true; - } - return directiveNode; - }, - - checkPropertiesInRoot: function(rules) { - var ruleNode; - for(var i = 0; i < rules.length; i++) { - ruleNode = rules[i]; - if (ruleNode instanceof tree.Rule && !ruleNode.variable) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null}; - } - } - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var rule, rulesets = []; - if (rulesetNode.firstRoot) { - this.checkPropertiesInRoot(rulesetNode.rules); - } - if (! rulesetNode.root) { - - rulesetNode.paths = rulesetNode.paths - .filter(function(p) { - var i; - if (p[0].elements[0].combinator.value === ' ') { - p[0].elements[0].combinator = new(tree.Combinator)(''); - } - for(i = 0; i < p.length; i++) { - if (p[i].getIsReferenced() && p[i].getIsOutput()) { - return true; - } - return false; - } - }); - - // Compile rules and rulesets - for (var i = 0; i < rulesetNode.rules.length; i++) { - rule = rulesetNode.rules[i]; - - if (rule.rules) { - // visit because we are moving them out from being a child - rulesets.push(this._visitor.visit(rule)); - rulesetNode.rules.splice(i, 1); - i--; - continue; - } - } - // accept the visitor to remove rules and refactor itself - // then we can decide now whether we want it or not - if (rulesetNode.rules.length > 0) { - rulesetNode.accept(this._visitor); - } - visitArgs.visitDeeper = false; - - this._mergeRules(rulesetNode.rules); - this._removeDuplicateRules(rulesetNode.rules); - - // now decide whether we keep the ruleset - if (rulesetNode.rules.length > 0 && rulesetNode.paths.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } else { - rulesetNode.accept(this._visitor); - visitArgs.visitDeeper = false; - if (rulesetNode.firstRoot || rulesetNode.rules.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } - if (rulesets.length === 1) { - return rulesets[0]; - } - return rulesets; - }, - - _removeDuplicateRules: function(rules) { - // remove duplicates - var ruleCache = {}, - ruleList, rule, i; - for(i = rules.length - 1; i >= 0 ; i--) { - rule = rules[i]; - if (rule instanceof tree.Rule) { - if (!ruleCache[rule.name]) { - ruleCache[rule.name] = rule; - } else { - ruleList = ruleCache[rule.name]; - if (ruleList instanceof tree.Rule) { - ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)]; - } - var ruleCSS = rule.toCSS(this._env); - if (ruleList.indexOf(ruleCSS) !== -1) { - rules.splice(i, 1); - } else { - ruleList.push(ruleCSS); - } - } - } - } - }, - - _mergeRules: function (rules) { - var groups = {}, - parts, - rule, - key; - - for (var i = 0; i < rules.length; i++) { - rule = rules[i]; - - if ((rule instanceof tree.Rule) && rule.merge) { - key = [rule.name, - rule.important ? "!" : ""].join(","); - - if (!groups[key]) { - parts = groups[key] = []; - } else { - rules.splice(i--, 1); - } - - parts.push(rule); - } - } - - Object.keys(groups).map(function (k) { - parts = groups[k]; - - if (parts.length > 1) { - rule = parts[0]; - - rule.value = new (tree.Value)(parts.map(function (p) { - return p.value; - })); - } - }); - } - }; - -})(require('./tree')); -(function (tree) { - /*jshint loopfunc:true */ - - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - for(i = 0; i < rulesetNode.rules.length; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rulesetNode.rules[i]); - rulesetNode.extendOnEveryPath = true; - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - for(i = 0; i < rulesetNode.paths.length; i++) { - var selectorPath = rulesetNode.paths[i], - selector = selectorPath[selectorPath.length-1]; - extendList = selector.extendList.slice(0).concat(allSelectorsExtendList).map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if (this.inInheritanceChain(targetExtend, extend)) { continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parents = [targetExtend, extend]; - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - inInheritanceChain: function (possibleParent, possibleChild) { - if (possibleParent === possibleChild) { - return true; - } - if (possibleChild.parents) { - if (this.inInheritanceChain(possibleParent, possibleChild.parents[0])) { - return true; - } - if (this.inInheritanceChain(possibleParent, possibleChild.parents[1])) { - return true; - } - } - return false; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (rulesetNode.extendOnEveryPath || selectorPath[selectorPath.length-1].extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator === '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - elementValue1 = elementValue1.value; - elementValue2 = elementValue2.value; - if (elementValue1 instanceof tree.Selector) { - if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) { - return false; - } - for(var i = 0; i currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - newElements = selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)); - - if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) { - path[path.length - 1].elements = - path[path.length - 1].elements.concat(newElements); - } else { - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - newElements - )); - } - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.sourceMapOutput = function (options) { - this._css = []; - this._rootNode = options.rootNode; - this._writeSourceMap = options.writeSourceMap; - this._contentsMap = options.contentsMap; - this._sourceMapFilename = options.sourceMapFilename; - this._outputFilename = options.outputFilename; - this._sourceMapURL = options.sourceMapURL; - this._sourceMapBasepath = options.sourceMapBasepath; - this._sourceMapRootpath = options.sourceMapRootpath; - this._outputSourceFiles = options.outputSourceFiles; - this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator; - - if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') { - this._sourceMapRootpath += '/'; - } - - this._lineNumber = 0; - this._column = 0; - }; - - tree.sourceMapOutput.prototype.normalizeFilename = function(filename) { - if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) { - filename = filename.substring(this._sourceMapBasepath.length); - if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') { - filename = filename.substring(1); - } - } - return (this._sourceMapRootpath || "") + filename.replace(/\\/g, '/'); - }; - - tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) { - - //ignore adding empty strings - if (!chunk) { - return; - } - - var lines, - sourceLines, - columns, - sourceColumns, - i; - - if (fileInfo) { - var inputSource = this._contentsMap[fileInfo.filename].substring(0, index); - sourceLines = inputSource.split("\n"); - sourceColumns = sourceLines[sourceLines.length-1]; - } - - lines = chunk.split("\n"); - columns = lines[lines.length-1]; - - if (fileInfo) { - if (!mapLines) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column}, - original: { line: sourceLines.length, column: sourceColumns.length}, - source: this.normalizeFilename(fileInfo.filename)}); - } else { - for(i = 0; i < lines.length; i++) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0}, - original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0}, - source: this.normalizeFilename(fileInfo.filename)}); - } - } - } - - if (lines.length === 1) { - this._column += columns.length; - } else { - this._lineNumber += lines.length - 1; - this._column = columns.length; - } - - this._css.push(chunk); - }; - - tree.sourceMapOutput.prototype.isEmpty = function() { - return this._css.length === 0; - }; - - tree.sourceMapOutput.prototype.toCSS = function(env) { - this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null }); - - if (this._outputSourceFiles) { - for(var filename in this._contentsMap) { - this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), this._contentsMap[filename]); - } - } - - this._rootNode.genCSS(env, this); - - if (this._css.length > 0) { - var sourceMapURL, - sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); - - if (this._sourceMapURL) { - sourceMapURL = this._sourceMapURL; - } else if (this._sourceMapFilename) { - sourceMapURL = this.normalizeFilename(this._sourceMapFilename); - } - - if (this._writeSourceMap) { - this._writeSourceMap(sourceMapContent); - } else { - sourceMapURL = "data:application/json," + encodeURIComponent(sourceMapContent); - } - - if (sourceMapURL) { - this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */"); - } - } - - return this._css.join(''); - }; - -})(require('./tree')); - -// -// browser.js - client-side engine -// -/*global less, window, document, XMLHttpRequest, location */ - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - (location.port && - location.port.length > 0) || - isFileProtocol ? 'development' - : 'production'); - -var logLevel = { - info: 2, - errors: 1, - none: 0 -}; - -// The amount of logging in the javascript console. -// 2 - Information and errors -// 1 - Errors -// 0 - None -// Defaults to 2 -less.logLevel = typeof(less.logLevel) != 'undefined' ? less.logLevel : logLevel.info; - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - less.tree.functions[func] = less.functions[func]; - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -var typePattern = /^text\/(x-)?less$/; -var cache = null; -var fileCache = {}; -var varsPre = ""; - -function log(str, level) { - if (less.env == 'development' && typeof(console) !== 'undefined' && less.logLevel >= level) { - console.log('less: ' + str); - } -} - -function extractId(href) { - return href.replace(/^[a-z-]+:\/+?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function errorConsole(e, rootHref) { - var template = '{line} {content}'; - var filename = e.filename || rootHref; - var errors = []; - var content = (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - " in " + filename + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n' + - errors.join('\n'); - } else if (e.stack) { - content += e.stack; - } - log(content, logLevel.errors); -} - -function createCSS(styles, sheet, lastModified) { - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If this has already been inserted into the DOM, we may need to replace it - var oldCss = document.getElementById(id); - var keepOldCss = false; - - // Create a new stylesheet node for insertion or (if necessary) replacement - var css = document.createElement('style'); - css.setAttribute('type', 'text/css'); - if (sheet.media) { - css.setAttribute('media', sheet.media); - } - css.id = id; - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - css.appendChild(document.createTextNode(styles)); - - // If new contents match contents of oldCss, don't replace oldCss - keepOldCss = (oldCss !== null && oldCss.childNodes.length > 0 && css.childNodes.length > 0 && - oldCss.firstChild.nodeValue === css.firstChild.nodeValue); - } - - var head = document.getElementsByTagName('head')[0]; - - // If there is no oldCss, just append; otherwise, only append if we need - // to replace oldCss with an updated stylesheet - if (oldCss === null || keepOldCss === false) { - var nextEl = sheet && sheet.nextSibling || null; - if (nextEl) { - nextEl.parentNode.insertBefore(css, nextEl); - } else { - head.appendChild(css); - } - } - if (oldCss && keepOldCss === false) { - oldCss.parentNode.removeChild(oldCss); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.', logLevel.info); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save', logLevel.errors); - } - } -} - -function errorHTML(e, rootHref) { - var id = 'less-error-message:' + extractId(rootHref || ""); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, errors = []; - var filename = e.filename || rootHref; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - '

    ' + '

    in ' + filenameNoPath + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - '
      ' + errors.join('') + '
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-}; - - -if (typeof(window.less) === 'undefined' || typeof(window.less.nodeType) !== 'undefined') { window.less = {}; } -less = window.less; -tree = window.less.tree = {}; -less.mode = 'browser'; - -var less, tree; - -// Node.js does not have a header file added which defines less -if (less === undefined) { - less = exports; - tree = require('./tree'); - less.mode = 'node'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `currentPos` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // current chunk - currentPos, // index of current chunk, in `input` - parser, - parsers, - rootFilename = env && env.filename; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed around by reference. - if (!(env instanceof tree.parseEnv)) { - env = new tree.parseEnv(env); - } - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - contentsIgnoredChars: env.contentsIgnoredChars, // lines inserted, not in the original less - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, currentFileInfo, importOptions, callback) { - var parserImports = this; - this.queue.push(path); - - var fileParsedFunc = function (e, root, fullPath) { - parserImports.queue.splice(parserImports.queue.indexOf(path), 1); // Remove the path from the queue - - var importedPreviously = fullPath in parserImports.files || fullPath === rootFilename; - - parserImports.files[fullPath] = root; // Store the root - - if (e && !parserImports.error) { parserImports.error = e; } - - callback(e, root, importedPreviously, fullPath); - }; - - if (less.Parser.importer) { - less.Parser.importer(path, currentFileInfo, fileParsedFunc, env); - } else { - less.Parser.fileLoader(path, currentFileInfo, function(e, contents, fullPath, newFileInfo) { - if (e) {fileParsedFunc(e); return;} - - var newEnv = new tree.parseEnv(env); - - newEnv.currentFileInfo = newFileInfo; - newEnv.processImports = false; - newEnv.contents[fullPath] = contents; - - if (currentFileInfo.reference || importOptions.reference) { - newFileInfo.reference = true; - } - - if (importOptions.inline) { - fileParsedFunc(null, contents, fullPath); - } else { - new(less.Parser)(newEnv).parse(contents, function (e, root) { - fileParsedFunc(e, root, fullPath); - }); - } - }, env); - } - } - }; - - function save() { temp = current; memo = currentPos = i; } - function restore() { current = temp; currentPos = i = memo; } - - function sync() { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - } - function isWhitespace(str, pos) { - var code = str.charCodeAt(pos | 0); - return (code <= 32) && (code === 32 || code === 10 || code === 9); - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var tokType = typeof tok, - match, length; - - // Either match a single character in the input, - // or match a regexp in the current chunk (`current`). - // - if (tokType === "string") { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - // regexp - sync (); - if (! (match = tok.exec(current))) { - return null; - } - - length = match[0].length; - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - - // Specialization of $(tok) - function $re(tok) { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - var m = tok.exec(current); - if (!m) { - return null; - } - - skipWhitespace(m[0].length); - if(typeof m === "string") { - return m; - } - - return m.length === 1 ? m[0] : m; - } - - var _$re = $re; - - // Specialization of $(tok) - function $char(tok) { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - curr = i - currentPos, - endIndex = i + current.length - curr, - mem = (i += length), - inp = input, - c; - - for (; i < endIndex; i++) { - c = inp.charCodeAt(i); - if (c > 32) { - break; - } - - if ((c !== 32) && (c !== 10) && (c !== 9) && (c !== 13)) { - break; - } - } - - current = current.slice(length + i - mem + curr); - currentPos = i; - - if (!current.length && (j < chunks.length - 1)) { - current = chunks[++j]; - } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - var result = (typeof arg === "function") ? arg.call(parsers) : $(arg); - if (result) { - return result; - } - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } - - // Specialization of expect() - function expectChar(arg, msg) { - if (input.charAt(i) === arg) { - skipWhitespace(1); - return arg; - } - error(msg || "expected '" + arg + "' got '" + input.charAt(i) + "'"); - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - return tok.test(current); - } - } - - // Specialization of peek() - function peekChar(tok) { - return input.charAt(i) === tok; - } - - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, inputStream) { - var n = index + 1, - line = null, - column = -1; - - while (--n >= 0 && inputStream.charAt(n) !== '\n') { - column++; - } - - if (typeof index === 'number') { - line = (inputStream.slice(0, index).match(/\n/g) || "").length; - } - - return { - line: line, - column: column - }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - callLine = e.call && getLocation(e.call, input).line, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = callLine + 1; - this.callExtract = lines[callLine]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // @param str A string containing 'less' markup - // @param callback call `callback` when done. - // @param [additionalData] An optional map which can contains vars - a map (key, value) of variables to apply - // - parse: function (str, callback, additionalData) { - var root, line, lines, error = null, globalVars, modifyVars, preText = ""; - - i = j = currentPos = furthest = 0; - - globalVars = (additionalData && additionalData.globalVars) ? less.Parser.serializeVars(additionalData.globalVars) + '\n' : ''; - modifyVars = (additionalData && additionalData.modifyVars) ? '\n' + less.Parser.serializeVars(additionalData.modifyVars) : ''; - - if (globalVars || (additionalData && additionalData.banner)) { - preText = ((additionalData && additionalData.banner) ? additionalData.banner : "") + globalVars; - parser.imports.contentsIgnoredChars[env.currentFileInfo.filename] = preText.length; - } - - str = str.replace(/\r\n/g, '\n'); - // Remove potential UTF Byte Order Mark - input = str = preText + str.replace(/^\uFEFF/, '') + modifyVars; - parser.imports.contents[env.currentFileInfo.filename] = str; - - // Split the input into chunks. - chunks = (function (input) { - var len = input.length, level = 0, parenLevel = 0, - lastOpening, lastClosing, lastMultiComment, lastMultiCommentEndBrace, - chunks = [], emitFrom = 0, - parserCurrentIndex, currentChunkStartIndex, cc, cc2, matched; - - function fail(msg, index) { - error = new(LessError)({ - index: index || parserCurrentIndex, - type: 'Parse', - message: msg, - filename: env.currentFileInfo.filename - }, env); - } - - function emitChunk(force) { - var len = parserCurrentIndex - emitFrom; - if (((len < 512) && !force) || !len) { - return; - } - chunks.push(input.slice(emitFrom, parserCurrentIndex + 1)); - emitFrom = parserCurrentIndex + 1; - } - - for (parserCurrentIndex = 0; parserCurrentIndex < len; parserCurrentIndex++) { - cc = input.charCodeAt(parserCurrentIndex); - if (((cc >= 97) && (cc <= 122)) || (cc < 34)) { - // a-z or whitespace - continue; - } - - switch (cc) { - case 40: // ( - parenLevel++; continue; - case 41: // ) - parenLevel--; continue; - case 59: // ; - if (!parenLevel) { emitChunk(); } - continue; - case 123: // { - level++; lastOpening = parserCurrentIndex; continue; - case 125: // } - level--; lastClosing = parserCurrentIndex; - if (!level) { emitChunk(); } - continue; - case 92: // \ - if (parserCurrentIndex < len - 1) { parserCurrentIndex++; continue; } - return fail("unescaped `\\`"); - case 34: - case 39: - case 96: // ", ' and ` - matched = 0; - currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 1; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 > 96) { continue; } - if (cc2 == cc) { matched = 1; break; } - if (cc2 == 92) { // \ - if (parserCurrentIndex == len - 1) { - return fail("unescaped `\\`"); - } - parserCurrentIndex++; - } - } - if (matched) { continue; } - return fail("unmatched `" + String.fromCharCode(cc) + "`", currentChunkStartIndex); - case 47: // /, check for comment - if (parenLevel || (parserCurrentIndex == len - 1)) { continue; } - cc2 = input.charCodeAt(parserCurrentIndex + 1); - if (cc2 == 47) { - // //, find lnfeed - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if ((cc2 <= 13) && ((cc2 == 10) || (cc2 == 13))) { break; } - } - } else if (cc2 == 42) { - // /*, find */ - lastMultiComment = currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len - 1; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 == 125) { lastMultiCommentEndBrace = parserCurrentIndex; } - if (cc2 != 42) { continue; } - if (input.charCodeAt(parserCurrentIndex + 1) == 47) { break; } - } - if (parserCurrentIndex == len - 1) { - return fail("missing closing `*/`", currentChunkStartIndex); - } - } - continue; - case 42: // *, check for unmatched */ - if ((parserCurrentIndex < len - 1) && (input.charCodeAt(parserCurrentIndex + 1) == 47)) { - return fail("unmatched `/*`"); - } - continue; - } - } - - if (level !== 0) { - if (level > 0) { - if ((lastMultiComment > lastOpening) && (lastMultiCommentEndBrace > lastMultiComment)) { - return fail("missing closing `}` or `*/`", lastOpening); - } else { - return fail("missing closing `}`", lastOpening); - } - } - return fail("missing opening `{`", lastClosing); - } else if (parenLevel !== 0) { - return fail((parenLevel > 0) ? "missing closing `)`" : "missing opening `(`"); - } - - emitChunk(true); - return chunks; - })(str); - - if (error) { - return callback(new(LessError)(error, env)); - } - - current = chunks[0]; - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)(null, this.parsers.primary()); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - return function (options, variables) { - options = options || {}; - var evaldRoot, - css, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, null, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var preEvalVisitors = [], - visitors = [ - new(tree.joinSelectorVisitor)(), - new(tree.processExtendsVisitor)(), - new(tree.toCSSVisitor)({compress: Boolean(options.compress)}) - ], i, root = this; - - if (options.plugins) { - for(i =0; i < options.plugins.length; i++) { - if (options.plugins[i].isPreEvalVisitor) { - preEvalVisitors.push(options.plugins[i]); - } else { - if (options.plugins[i].isPreVisitor) { - visitors.splice(0, 0, options.plugins[i]); - } else { - visitors.push(options.plugins[i]); - } - } - } - } - - for(i = 0; i < preEvalVisitors.length; i++) { - preEvalVisitors[i].run(root); - } - - evaldRoot = evaluate.call(root, evalEnv); - - for(i = 0; i < visitors.length; i++) { - visitors[i].run(evaldRoot); - } - - if (options.sourceMap) { - evaldRoot = new tree.sourceMapOutput( - { - contentsIgnoredCharsMap: parser.imports.contentsIgnoredChars, - writeSourceMap: options.writeSourceMap, - rootNode: evaldRoot, - contentsMap: parser.imports.contents, - sourceMapFilename: options.sourceMapFilename, - sourceMapURL: options.sourceMapURL, - outputFilename: options.sourceMapOutputFilename, - sourceMapBasepath: options.sourceMapBasepath, - sourceMapRootpath: options.sourceMapRootpath, - outputSourceFiles: options.outputSourceFiles, - sourceMapGenerator: options.sourceMapGenerator - }); - } - - css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits)}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.cleancss && less.mode === 'node') { - var CleanCSS = require('clean-css'), - cleancssOptions = options.cleancssOptions || {}; - - if (cleancssOptions.keepSpecialComments === undefined) { - cleancssOptions.keepSpecialComments = "*"; - } - cleancssOptions.processImport = false; - cleancssOptions.noRebase = true; - if (cleancssOptions.noAdvanced === undefined) { - cleancssOptions.noAdvanced = true; - } - - return new CleanCSS(cleancssOptions).minify(css); - } else if (options.compress) { - return css.replace(/(^(\s)+)|((\s)+$)/g, ""); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - var loc = getLocation(i, input); - lines = input.split('\n'); - line = loc.line + 1; - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: loc.column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - return callback(e); - } - else { - return callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - return finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: parsers = { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var mixin = this.mixin, $re = _$re, root = [], node; - - while (true) - { - node = this.extendRule() || mixin.definition() || this.rule() || this.ruleset() || - mixin.call() || this.comment() || this.directive(); - if (node) { - root.push(node); - } else { - if (!($re(/^[\s\n]+/) || $re(/^;+/))) { - break; - } - } - } - - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') { return; } - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($re(/^\/\/.*/), true, i, env.currentFileInfo); - } - comment = $re(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/); - if (comment) { - return new(tree.Comment)(comment, false, i, env.currentFileInfo); - } - }, - - comments: function () { - var comment, comments = []; - - while(true) { - comment = this.comment(); - if (!comment) { - break; - } - comments.push(comment); - } - - return comments; - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; } - - if (e) { $char('~'); } - - str = $re(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/); - if (str) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - k = $re(/^[_A-Za-z-][_A-Za-z0-9-]*/); - if (k) { - var color = tree.Color.fromKeyword(k); - if (color) { - return color; - } - return new(tree.Keyword)(k); - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(current); - if (!name) { return; } - - name = name[1]; - nameLC = name.toLowerCase(); - if (nameLC === 'url') { - return null; - } - - i += name.length; - - if (nameLC === 'alpha') { - alpha_ret = parsers.alpha(); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $char('('); // Parse the '(' and consume whitespace. - - args = this.arguments(); - - if (! $char(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (true) { - arg = this.assignment() || parsers.expression(); - if (!arg) { - break; - } - args.push(arg); - if (! $char(',')) { - break; - } - } - return args; - }, - literal: function () { - return this.dimension() || - this.color() || - this.quoted() || - this.unicodeDescriptor(); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - key = $re(/^\w+(?=\s?=)/i); - if (!key) { - return; - } - if (!$char('=')) { - return; - } - value = parsers.entity(); - if (value) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$re(/^url\(/)) { - return; - } - - value = this.quoted() || this.variable() || - $re(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expectChar(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $re(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var curly, index = i; - - if (input.charAt(i) === '@' && (curly = $re(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $re(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) { - return; - } - - value = $re(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/); - if (value) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - ud = $re(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/); - if (ud) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '`') { return; } - if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) { - error("You are using JavaScript, which has been disabled."); - } - - if (e) { $char('~'); } - - str = $re(/^`([^`]*)`/); - if (str) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*:/))) { return name[1]; } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList, extend; - - if (!(isRule ? $re(/^&:extend\(/) : $re(/^:extend\(/))) { return; } - - do { - option = null; - elements = null; - while (! (option = $re(/^(all)(?=\s*(\)|,))/))) { - e = this.element(); - if (!e) { break; } - if (elements) { elements.push(e); } else { elements = [ e ]; } - } - - option = option && option[1]; - - extend = new(tree.Extend)(new(tree.Selector)(elements), option, index); - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - - } while($char(",")); - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var s = input.charAt(i), important = false, index = i, - elements, elem, e, c, args; - - if (s !== '.' && s !== '#') { return; } - - save(); // stop us absorbing part of an invalid selector - - while (true) { - e = $re(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/); - if (!e) { - break; - } - elem = new(tree.Element)(c, e, i, env.currentFileInfo); - if (elements) { elements.push(elem); } else { elements = [ elem ]; } - c = $char('>'); - } - if ($char('(')) { - args = this.args(true).args; - expectChar(')'); - } - - if (parsers.important()) { - important = true; - } - - if (elements && ($char(';') || peekChar('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - - restore(); - }, - args: function (isCall) { - var parsers = parser.parsers, entities = parsers.entities, - returner = { args:null, variadic: false }, - expressions = [], argsSemiColon = [], argsComma = [], - isSemiColonSeperated, expressionContainsNamed, name, nameLoop, value, arg; - - while (true) { - if (isCall) { - arg = parsers.expression(); - } else { - parsers.comments(); - if (input.charAt(i) === '.' && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = entities.variable() || entities.literal() || entities.keyword(); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value.length == 1) { - val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($char(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(parsers.expression); - nameLoop = (name = val.name); - } else if (!isCall && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($char(',')) { - continue; - } - - if ($char(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) { - return; - } - - save(); - - match = $re(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/); - if (match) { - name = match[1]; - - var argInfo = this.args(false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$char(')')) { - furthest = i; - restore(); - } - - parsers.comments(); - - if ($re(/^when/)) { // Guard - cond = expect(parsers.conditions, 'expected condition'); - } - - ruleset = parsers.block(); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - var entities = this.entities; - - return entities.literal() || entities.variable() || entities.url() || - entities.call() || entities.keyword() || entities.javascript() || - this.comment(); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $char(';') || peekChar('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $re(/^\(opacity=/i)) { return; } - value = $re(/^\d+/) || this.entities.variable(); - if (value) { - expectChar(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, c, v; - - c = this.combinator(); - - e = $re(/^(?:\d+\.\d+|\d+)%/) || $re(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $char('*') || $char('&') || this.attribute() || $re(/^\([^()@]+\)/) || $re(/^[\.#](?=@)/) || - this.entities.variableCurly(); - - if (! e) { - if ($char('(')) { - if ((v = this.selector()) && $char(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, i, env.currentFileInfo); } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|') { - i++; - while (isWhitespace(input, i)) { i++; } - return new(tree.Combinator)(c); - } else if (isWhitespace(input, i - 1)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - // - // A CSS selector (see selector below) - // with less extensions e.g. the ability to extend and guard - // - lessSelector: function () { - return this.selector(true); - }, - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function (isLess) { - var $re = _$re, elements, extendList, c, e, extend, when, condition; - - while ((isLess && (extend = this.extend())) || (isLess && (when = $re(/^when/))) || (e = this.element())) { - if (when) { - condition = expect(this.conditions, 'expected condition'); - } else if (condition) { - error("CSS guard can only be used at the end of selector"); - } else if (extend) { - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - } else { - if (extendList) { error("Extend can only be used at the end of selector"); } - c = input.charAt(i); - if (elements) { elements.push(e); } else { elements = [ e ]; } - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { - break; - } - } - - if (elements) { return new(tree.Selector)(elements, extendList, condition, i, env.currentFileInfo); } - if (extendList) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - if (! $char('[')) { return; } - - var entities = this.entities, - key, val, op; - - if (!(key = entities.variableCurly())) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - op = $re(/^[|~*$^]?=/); - if (op) { - val = entities.quoted() || $re(/^[0-9]+%/) || $re(/^[\w-]+/) || entities.variableCurly(); - } - - expectChar(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($char('{') && (content = this.primary()) && $char('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors, s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - while (true) { - s = this.lessSelector(); - if (!s) { - break; - } - if (selectors) { selectors.push(s); } else { selectors = [ s ]; } - this.comments(); - if (! $char(',')) { break; } - if (s.condition) { - error("Guards are only currently allowed on a single selector."); - } - this.comments(); - } - - if (selectors && (rules = this.block())) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) { - ruleset.debugInfo = debugInfo; - } - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, c = input.charAt(i), important, merge = false; - save(); - - if (c === '.' || c === '#' || c === '&') { return; } - - name = this.variable() || this.ruleProperty(); - if (name) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || (name.charAt && (name.charAt(0) === '@'))) ? - (this.value() || this.anonymousValue()) : - (this.anonymousValue() || this.value()); - - important = this.important(); - - // a name returned by this.ruleProperty() is always an array of the form: - // ["", "string-1", ..., "string-n", ""] or ["", "string-1", ..., "string-n", "+"] - merge = name.pop && (name.pop() === "+"); - - if (value && this.end()) { - return new (tree.Rule)(name, value, important, merge, memo, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } - }, - anonymousValue: function () { - var match; - match = /^([^@+\/'"*`(;{}-]*);/.exec(current); - if (match) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $re(/^@import?\s+/); - - var options = (dir ? this.importOptions() : null) || {}; - - if (dir && (path = this.entities.quoted() || this.entities.url())) { - features = this.mediaFeatures(); - if ($char(';')) { - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $char('(')) { return null; } - do { - o = this.importOption(); - if (o) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $char(',')) { break; } - } - } while (o); - expectChar(')'); - return options; - }, - - importOption: function() { - var opt = $re(/^(less|css|multiple|once|inline|reference)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var entities = this.entities, nodes = [], e, p; - do { - e = entities.keyword() || entities.variable(); - if (e) { - nodes.push(e); - } else if ($char('(')) { - p = this.property(); - e = this.value(); - if ($char(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null; } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var entities = this.entities, features = [], e; - do { - e = this.mediaFeature(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } else { - e = entities.variable(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - if ($re(/^@media/)) { - features = this.mediaFeatures(); - - rules = this.block(); - if (rules) { - media = new(tree.Media)(rules, features, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - media.debugInfo = debugInfo; - } - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression, identifier; - - if (input.charAt(i) !== '@') { return; } - - value = this['import']() || this.media(); - if (value) { - return value; - } - - save(); - - name = $re(/^@[a-z-]+/); - - if (!name) { return; } - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@host": - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - identifier = ($re(/^[^{]+/) || '').trim(); - if (identifier) { - name += " " + identifier; - } - } - - if (hasBlock) { - rules = this.block(); - if (rules) { - return new(tree.Directive)(name, rules, i, env.currentFileInfo); - } - } else { - value = hasExpression ? this.expression() : this.entity(); - if (value && $char(';')) { - var directive = new(tree.Directive)(name, value, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = []; - - do { - e = this.expression(); - if (e) { - expressions.push(e); - if (! $char(',')) { break; } - } - } while(e); - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $re(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($char('(')) { - a = this.addition(); - if (a) { - e = new(tree.Expression)([a]); - expectChar(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced; - m = this.operand(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - if (peek(/^\/[*\/]/)) { - break; - } - op = $char('/') || $char('*'); - - if (!op) { break; } - - a = this.operand(); - - if (!a) { break; } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - m = this.multiplication(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - op = $re(/^[-+]\s+/) || (!isSpaced && ($char('+') || $char('-'))); - if (!op) { - break; - } - a = this.multiplication(); - if (!a) { - break; - } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - a = this.condition(); - if (a) { - while (true) { - if (!peek(/^,\s*(not\s*)?\(/) || !$char(',')) { - break; - } - b = this.condition(); - if (!b) { - break; - } - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var entities = this.entities, index = i, negate = false, - a, b, c, op; - - if ($re(/^not/)) { negate = true; } - expectChar('('); - a = this.addition() || entities.keyword() || entities.quoted(); - if (a) { - op = $re(/^(?:>=|<=|=<|[<=>])/); - if (op) { - b = this.addition() || entities.keyword() || entities.quoted(); - if (b) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expectChar(')'); - return $re(/^and/) ? new(tree.Condition)('and', c, this.condition()) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var entities = this.entities, - p = input.charAt(i + 1), negate; - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $char('-'); } - var o = this.sub() || entities.dimension() || - entities.color() || entities.variable() || - entities.call(); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var entities = [], e, delim; - - do { - e = this.addition() || this.entity(); - if (e) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/)) { - delim = $char('/'); - if (delim) { - entities.push(new(tree.Anonymous)(delim)); - } - } - } - } while (e); - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name = $re(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/); - if (name) { - return name[1]; - } - }, - ruleProperty: function () { - var c = current, name = [], index = [], length = 0; - - function match(re) { - var a = re.exec(c); - if (a) { - index.push(i + length); - length += a[0].length; - c = c.slice(a[1].length); - return name.push(a[1]); - } - } - - match(/^(\*?)/); - while (match(/^((?:[\w-]+)|(?:@\{[\w-]+\}))/)); // ! - if ((name.length > 1) && match(/^\s*(\+?)\s*:/)) { - // at last, we have the complete match now. move forward, - // convert @{var}s to tree.Variable(s) and return: - skipWhitespace(length); - for (var k in name) { - if (name[k].charAt(0) === '@') { - name[k] = new tree.Variable('@' + name[k].slice(2, -1), - index[k], env.currentFileInfo); - } - } - return name; - } - } - } - }; - return parser; -}; -less.Parser.serializeVars = function(vars) { - var s = ''; - - for (var name in vars) { - if (Object.hasOwnProperty.call(vars, name)) { - var value = vars[name]; - s += ((name[0] === '@') ? '' : '@') + name +': '+ value + - ((('' + value).slice(-1) === ';') ? '' : ';'); - } - } - - return s; -}; -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 255); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; } - else if (h * 2 < 1) { return m2; } - else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; } - else { return m1; } - } - - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - // filter: saturate(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if (color.luma() < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - /*jshint loopfunc:true */ - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - if(!(val instanceof tree.Dimension)) { - throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") }; - } - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return _math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _minmax: function (isMin, args) { - args = Array.prototype.slice.call(args); - switch(args.length) { - case 0: throw { type: "Argument", message: "one or more arguments required" }; - case 1: return args[0]; - } - var i, j, current, currentUnified, referenceUnified, unit, - order = [], // elems only contains original argument values. - values = {}; // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - for (i = 0; i < args.length; i++) { - current = args[i]; - if (!(current instanceof tree.Dimension)) { - order.push(current); - continue; - } - currentUnified = current.unify(); - unit = currentUnified.unit.toString(); - j = values[unit]; - if (j === undefined) { - values[unit] = order.length; - order.push(current); - continue; - } - referenceUnified = order[j].unify(); - if ( isMin && currentUnified.value < referenceUnified.value || - !isMin && currentUnified.value > referenceUnified.value) { - order[j] = current; - } - } - if (order.length == 1) { - return order[0]; - } - args = order.map(function (a) { return a.toCSS(this.env); }) - .join(this.env.compress ? "," : ", "); - return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")"); - }, - min: function () { - return this._minmax(true, arguments); - }, - max: function () { - return this._minmax(false, arguments); - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - var colorCandidate = n.value, - returnColor; - returnColor = tree.Color.fromKeyword(colorCandidate); - if (returnColor) { - return returnColor; - } - if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) { - return new(tree.Color)(colorCandidate.slice(1)); - } - throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" }; - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - return Array.isArray(values.value) - ? values.value[index] : Array(values)[index]; - }, - length: function(values) { - var n = Array.isArray(values.value) ? values.value.length : 1; - return new tree.Dimension(n); - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require("fs"), - path = require("path"), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) { mimetype += ';base64'; } - } - else { - useBase64 = /;base64$/.test(mimetype); - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "'data:" + mimetype + ',' + buf + "'"; - return new(tree.URL)(new(tree.Anonymous)(uri)); - }, - - "svg-gradient": function(direction) { - - function throwArgumentDescriptor() { - throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" }; - } - - if (arguments.length < 3) { - throwArgumentDescriptor(); - } - var stops = Array.prototype.slice.call(arguments, 1), - gradientDirectionSvg, - gradientType = "linear", - rectangleDimension = 'x="0" y="0" width="1" height="1"', - useBase64 = true, - renderEnv = {compress: false}, - returner, - directionValue = direction.toCSS(renderEnv), - i, color, position, positionValue, alpha; - - switch (directionValue) { - case "to bottom": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - gradientType = "radial"; - gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" }; - } - returner = '' + - '' + - '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>'; - - for (i = 0; i < stops.length; i+= 1) { - if (stops[i].value) { - color = stops[i].value[0]; - position = stops[i].value[1]; - } else { - color = stops[i]; - position = undefined; - } - - if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) { - throwArgumentDescriptor(); - } - positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%"; - alpha = color.alpha; - returner += ''; - } - returner += '' + - ''; - - if (useBase64) { - // only works in node, needs interface to what is supported in environment - try { - returner = new Buffer(returner).toString('base64'); - } catch(e) { - useBase64 = false; - } - } - - returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'"; - return new(tree.URL)(new(tree.Anonymous)(returner)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -// Math - -var mathFunctions = { - // name, unit - ceil: null, - floor: null, - sqrt: null, - abs: null, - tan: "", - sin: "", - cos: "", - atan: "rad", - asin: "rad", - acos: "rad" -}; - -function _math(fn, unit, n) { - if (!(n instanceof tree.Dimension)) { - throw { type: "Argument", message: "argument must be a number" }; - } - if (unit == null) { - unit = n.unit; - } else { - n = n.unify(); - } - return new(tree.Dimension)(fn(parseFloat(n.value)), unit); -} - -// ~ End of Math - -// Color Blending -// ref: http://www.w3.org/TR/compositing-1 - -function colorBlend(mode, color1, color2) { - var ab = color1.alpha, cb, // backdrop - as = color2.alpha, cs, // source - ar, cr, r = []; // result - - ar = as + ab * (1 - as); - for (var i = 0; i < 3; i++) { - cb = color1.rgb[i] / 255; - cs = color2.rgb[i] / 255; - cr = mode(cb, cs); - if (ar) { - cr = (as * cs + ab * (cb - - as * (cb + cs - cr))) / ar; - } - r[i] = cr * 255; - } - - return new(tree.Color)(r, ar); -} - -var colorBlendMode = { - multiply: function(cb, cs) { - return cb * cs; - }, - screen: function(cb, cs) { - return cb + cs - cb * cs; - }, - overlay: function(cb, cs) { - cb *= 2; - return (cb <= 1) - ? colorBlendMode.multiply(cb, cs) - : colorBlendMode.screen(cb - 1, cs); - }, - softlight: function(cb, cs) { - var d = 1, e = cb; - if (cs > 0.5) { - e = 1; - d = (cb > 0.25) ? Math.sqrt(cb) - : ((16 * cb - 12) * cb + 4) * cb; - } - return cb - (1 - 2 * cs) * e * (d - cb); - }, - hardlight: function(cb, cs) { - return colorBlendMode.overlay(cs, cb); - }, - difference: function(cb, cs) { - return Math.abs(cb - cs); - }, - exclusion: function(cb, cs) { - return cb + cs - 2 * cb * cs; - }, - - // non-w3c functions: - average: function(cb, cs) { - return (cb + cs) / 2; - }, - negation: function(cb, cs) { - return 1 - Math.abs(cb + cs - 1); - } -}; - -// ~ End of Color Blending - -tree.defaultFunc = { - eval: function () { - var v = this.value_, e = this.error_; - if (e) { - throw e; - } - if (v != null) { - return v ? tree.True : tree.False; - } - }, - value: function (v) { - this.value_ = v; - }, - error: function (e) { - this.error_ = e; - }, - reset: function () { - this.value_ = this.error_ = null; - } -}; - -function initFunctions() { - var f, tf = tree.functions; - - // math - for (f in mathFunctions) { - tf[f] = _math.bind(null, Math[f], mathFunctions[f]); - } - - // color blending - for (f in colorBlendMode) { - tf[f] = colorBlend.bind(null, colorBlendMode[f]); - } - - // default - f = tree.defaultFunc; - tf.default = f.eval.bind(f); - -} initFunctions(); - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); - -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); - -(function (tree) { - -tree.debugInfo = function(env, ctx, lineSeperator) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:/\\])/g, function (a) { - if (a == '\\') { - a = '\/'; - } - return '\\' + a; - }) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - r = fun.call(obj, obj[i]); - if (r) { return r; } - } - return null; -}; - -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false); }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -tree.toCSS = function (env) { - var strs = []; - this.genCSS(env, { - add: function(chunk, fileInfo, index) { - strs.push(chunk); - }, - isEmpty: function () { - return strs.length === 0; - } - }); - return strs.join(''); -}; - -tree.outputRuleset = function (env, output, rules) { - var ruleCnt = rules.length, i; - env.tabLevel = (env.tabLevel | 0) + 1; - - // Compressed - if (env.compress) { - output.add('{'); - for (i = 0; i < ruleCnt; i++) { - rules[i].genCSS(env, output); - } - output.add('}'); - env.tabLevel--; - return; - } - - // Non-compressed - var tabSetStr = '\n' + Array(env.tabLevel).join(" "), tabRuleStr = tabSetStr + " "; - if (!ruleCnt) { - output.add(" {" + tabSetStr + '}'); - } else { - output.add(" {" + tabRuleStr); - rules[0].genCSS(env, output); - for (i = 1; i < ruleCnt; i++) { - output.add(tabRuleStr); - rules[i].genCSS(env, output); - } - output.add(tabSetStr + '}'); - } - - env.tabLevel--; -}; - -})(require('./tree')); - -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } - return this; - }, - genCSS: function (env, output) { - output.add("alpha(opacity="); - - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - - output.add(")"); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Anonymous = function (string, index, currentFileInfo, mapLines) { - this.value = string.value || string; - this.index = index; - this.mapLines = mapLines; - this.currentFileInfo = currentFileInfo; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - eval: function () { - return new tree.Anonymous(this.value, this.index, this.currentFileInfo, this.mapLines); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - }, - genCSS: function (env, output) { - output.add(this.value, this.currentFileInfo, this.index, this.mapLines); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - }, - genCSS: function (env, output) { - output.add(this.key + '='); - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - if (this.args) { - this.args = visitor.visitArray(this.args); - } - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - return new tree.Call(this.name, args, this.index, this.currentFileInfo); - }, - - genCSS: function (env, output) { - output.add(this.name + "(", this.currentFileInfo, this.index); - - for(var i = 0; i < this.args.length; i++) { - this.args[i].genCSS(env, output); - if (i + 1 < this.args.length) { - output.add(", "); - } - } - - output.add(")"); - }, - - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; - -var transparentKeyword = "transparent"; - -tree.Color.prototype = { - type: "Color", - eval: function () { return this; }, - luma: function () { return (0.2126 * this.rgb[0] / 255) + (0.7152 * this.rgb[1] / 255) + (0.0722 * this.rgb[2] / 255); }, - - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress; - - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - if (this.alpha < 1) { - if (this.alpha === 0 && this.isTransparentKeyword) { - return transparentKeyword; - } - return "rgba(" + this.rgb.map(function (c) { - return clamp(Math.round(c), 255); - }).concat(clamp(this.alpha, 1)) - .join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.toRGB(); - - if (compress) { - var splitcolor = color.split(''); - - // Convert color to short format - if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) { - color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5]; - } - } - - return color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var rgb = []; - var alpha = this.alpha * (1 - other.alpha) + other.alpha; - for (var c = 0; c < 3; c++) { - rgb[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(rgb, alpha); - }, - - toRGB: function () { - return toHex(this.rgb); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - return toHex([this.alpha * 255].concat(this.rgb)); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - -tree.Color.fromKeyword = function(keyword) { - if (tree.colors.hasOwnProperty(keyword)) { - // detect named color - return new(tree.Color)(tree.colors[keyword].slice(1)); - } - if (keyword === transparentKeyword) { - var transparent = new(tree.Color)([0, 0, 0], 0); - transparent.isTransparentKeyword = true; - return transparent; - } -}; - -function toHex(v) { - return '#' + v.map(function (c) { - c = clamp(Math.round(c), 255); - return (c < 16 ? '0' : '') + c.toString(16); - }).join(''); -} - -function clamp(v, max) { - return Math.min(Math.max(v, 0), max); -} - -})(require('../tree')); - -(function (tree) { - -tree.Comment = function (value, silent, index, currentFileInfo) { - this.value = value; - this.silent = !!silent; - this.currentFileInfo = currentFileInfo; -}; -tree.Comment.prototype = { - type: "Comment", - genCSS: function (env, output) { - if (this.debugInfo) { - output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index); - } - output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n - }, - toCSS: tree.toCSS, - isSilent: function(env) { - var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced), - isCompressed = env.compress && !this.value.match(/^\/\*!/); - return this.silent || isReference || isCompressed; - }, - eval: function () { return this; }, - markReferenced: function () { - this.isReferenced = true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<' || op === '<='; - case 0: return op === '=' || op === '>=' || op === '=<' || op === '<='; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); - -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - genCSS: function (env, output) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = this.value, - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && this.unit.isLength()) { - output.add(strValue); - return; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - output.add(strValue); - this.unit.genCSS(env, output); - }, - toCSS: tree.toCSS, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - /*jshint noempty:false */ - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a = this.unify(), b = other.unify(), - aValue = a.value, bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - if (!b.unit.isEmpty() && a.unit.compare(b.unit) !== 0) { - return -1; - } - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'm', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, targetUnit, derivedConversions = {}, applyUnit; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - applyUnit = function (atomicUnit, denominator) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(applyUnit); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - genCSS: function (env, output) { - if (this.numerator.length >= 1) { - output.add(this.numerator[0]); - } else - if (this.denominator.length >= 1) { - output.add(this.denominator[0]); - } else - if ((!env || !env.strictUnits) && this.backupUnit) { - output.add(this.backupUnit); - } - }, - toCSS: tree.toCSS, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isLength: function () { - return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/)); - }, - - isEmpty: function () { - return this.numerator.length === 0 && this.denominator.length === 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length === 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, result = {}, mapUnit; - - mapUnit = function (atomicUnit) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }; - - for (var groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(mapUnit); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Directive = function (name, value, index, currentFileInfo) { - this.name = name; - - if (Array.isArray(value)) { - this.rules = [new(tree.Ruleset)(null, value)]; - this.rules[0].allowImports = true; - } else { - this.value = value; - } - this.currentFileInfo = currentFileInfo; - -}; -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - if (this.value) { - this.value = visitor.visit(this.value); - } - }, - genCSS: function (env, output) { - output.add(this.name, this.currentFileInfo, this.index); - if (this.rules) { - tree.outputRuleset(env, output, this.rules); - } else { - output.add(' '); - this.value.genCSS(env, output); - output.add(';'); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var evaldDirective = this; - if (this.rules) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name, null, this.index, this.currentFileInfo); - evaldDirective.rules = [this.rules[0].eval(env)]; - evaldDirective.rules[0].root = true; - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - markReferenced: function () { - var i, rules; - this.isReferenced = true; - if (this.rules) { - rules = this.rules[0].rules; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Element = function (combinator, value, index, currentFileInfo) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - var value = this.value; - this.combinator = visitor.visit(this.combinator); - if (typeof value === "object") { - this.value = visitor.visit(value); - } - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index, - this.currentFileInfo); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env), this.currentFileInfo, this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value === '' && this.combinator.value.charAt(0) === '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - _outputMap: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : ' + ', - '~' : ' ~ ', - '>' : ' > ', - '|' : '|' - }, - _outputMapCompressed: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : '+', - '~' : '~', - '>' : '>', - '|' : '|' - }, - genCSS: function (env, output) { - output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - genCSS: function (env, output) { - for(var i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i + 1 < this.value.length) { - output.add(" "); - } - } - }, - toCSS: tree.toCSS, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - this.object_id = tree.Extend.next_id++; - this.parent_ids = [this.object_id]; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; -tree.Extend.next_id = 0; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i, - selectorElements; - - for(i = 0; i < selectors.length; i++) { - selectorElements = selectors[i].elements; - // duplicate the logic in genCSS function inside the selector node. - // future TODO - move both logics into the selector joiner visitor - if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") { - selectorElements[0].combinator.value = ' '; - } - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); - -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined || this.options.inline) { - this.css = !this.options.less || this.options.inline; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - this.path = visitor.visit(this.path); - if (!this.options.inline && this.root) { - this.root = visitor.visit(this.root); - } - }, - genCSS: function (env, output) { - if (this.css) { - output.add("@import ", this.currentFileInfo, this.index); - this.path.genCSS(env, output); - if (this.features) { - output.add(" "); - this.features.genCSS(env, output); - } - output.add(';'); - } - }, - toCSS: tree.toCSS, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - - if (!(path instanceof tree.URL)) { - if (rootpath) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath + pathValue; - } - } - path.value = env.normalizePath(path.value); - } - - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { return []; } - - if (this.options.inline) { - //todo needs to reference css file not import - var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true); - return this.features ? new(tree.Media)([contents], this.features.value) : [contents]; - } else if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - /*jshint loopfunc:true */ - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'number') { - return new(tree.Dimension)(result); - } else if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Keyword = function (value) { this.value = value; }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); - -(function (tree) { - -tree.Media = function (value, features, index, currentFileInfo) { - this.index = index; - this.currentFileInfo = currentFileInfo; - - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.rules = [new(tree.Ruleset)(selectors, value)]; - this.rules[0].allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - }, - genCSS: function (env, output) { - output.add('@media ', this.currentFileInfo, this.index); - this.features.genCSS(env, output); - tree.outputRuleset(env, output, this.rules); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)(null, [], this.index, this.currentFileInfo); - if(this.debugInfo) { - this.rules[0].debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.rules[0]); - media.rules = [this.rules[0].eval(env)]; - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env); - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', this.index, this.currentFileInfo); - return [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)]; - }, - markReferenced: function () { - var i, rules = this.rules[0].rules; - this.isReferenced = true; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])]; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = (args && args.length) ? args : null; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - if (this.selector) { - this.selector = visitor.visit(this.selector); - } - if (this.arguments) { - this.arguments = visitor.visitArray(this.arguments); - } - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule; - var candidates = [], candidate, conditionResult = [], defaultFunc = tree.defaultFunc, defaultUsed = false; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - - // To make `default()` function independent of definition order we have two "subpasses" here. - // At first we evaluate each guard *twice* (with `default() == true` and `default() == false`), - // and build candidate list with corresponding flags. Then, when we know all possible matches, - // we make a final decision. - - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - - if (mixin.matchArgs(args, env)) { - candidate = {mixin: mixin}; - - if (mixin.matchCondition) { - for (f = 0; f < 2; f++) { - defaultFunc.value(f); - conditionResult[f] = mixin.matchCondition(args, env); - } - if (conditionResult[0] || conditionResult[1]) { - if (conditionResult[0] != conditionResult[1]) { - if (defaultUsed) { - // todo: ideally, it would make sense to also print the candidate - // mixin definitions that cause the conflict (current one and the - // mixin that set defaultUsed flag). But is there any easy method - // to get their filename/line/index info here? - throw { type: 'Runtime', - message: 'Ambiguous use of `default()` found when matching for `' - + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } - - defaultUsed = true; - candidate.matchIfDefault = true; - candidate.matchIfDefaultValue = conditionResult[1]; - } - - candidates.push(candidate); - } - } - else { - candidates.push(candidate); - } - - match = true; - } - } - - defaultFunc.reset(); - - for (m in candidates) { - candidate = candidates[m]; - if (!candidate.matchIfDefault || (candidate.matchIfDefaultValue == (candidates.length == 1))) { - try { - mixin = candidate.mixin; - if (!(mixin instanceof tree.mixin.Definition)) { - mixin = new tree.mixin.Definition("", [], mixin.rules, null, false); - mixin.originalRuleset = mixins[m].originalRuleset || mixins[m]; - } - //if (this.important) { - // isImportant = env.isImportant; - // env.isImportant = true; - //} - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - //if (this.important) { - // env.isImportant = isImportant; - //} - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - } - - if (match) { - if (!this.currentFileInfo || !this.currentFileInfo.reference) { - for (i = 0; i < rules.length; i++) { - rule = rules[i]; - if (rule.markReferenced) { - rule.markReferenced(); - } - } - } - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - }, - format: function (args) { - return this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")"; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1; } - else { return count; } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - if (this.params && this.params.length) { - this.params = visitor.visitArray(this.params); - } - this.rules = visitor.visitArray(this.rules); - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - /*jshint boss:true */ - var frame = new(tree.Ruleset)(null, null), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.prependRule(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) { continue; } - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.prependRule(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.prependRule(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - rules, ruleset; - - frame.prependRule(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules); - ruleset.originalRuleset = this; - ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames))); - if (important) { - ruleset = this.parent.makeImportant.apply(ruleset); - } - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] // the parameter variables - .concat(this.frames) // the parent namespace/mixin frames - .concat(env.frames)))) { // the current environment frames - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (! this.variadic) { - if (argsLength < this.required) { return false; } - if (argsLength > this.params.length) { return false; } - } else { - if (argsLength < (this.required - 1)) { return false; } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('-'); - this.value.genCSS(env, output); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env); - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - a = a.toColor(); - } - if (b instanceof tree.Dimension && a instanceof tree.Color) { - b = b.toColor(); - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - genCSS: function (env, output) { - this.operands[0].genCSS(env, output); - if (this.isSpaced) { - output.add(" "); - } - output.add(this.op); - if (this.isSpaced) { - output.add(" "); - } - this.operands[1].genCSS(env, output); - }, - toCSS: tree.toCSS -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('('); - this.value.genCSS(env, output); - output.add(')'); - }, - toCSS: tree.toCSS, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - genCSS: function (env, output) { - if (!this.escaped) { - output.add(this.quote, this.currentFileInfo, this.index); - } - output.add(this.value); - if (!this.escaped) { - output.add(this.quote); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.merge = merge; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - this.variable = name.charAt && (name.charAt(0) === '@'); -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index); - try { - this.value.genCSS(env, output); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index); - }, - toCSS: tree.toCSS, - eval: function (env) { - var strictMathBypass = false; - var name = this.name.map ? - this.name.map( function(v) { - return v.eval ? v.eval(env).value : v; - }).join('') : this.name; - if (name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - return new(tree.Rule)(name, - this.value.eval(env), - this.important, - this.merge, - this.index, this.currentFileInfo, this.inline); - } - catch(e) { - if (e.index === undefined) { - e.index = this.index; - } - throw e; - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.merge, - this.index, this.currentFileInfo, this.inline); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - if (this.paths) { - visitor.visitArray(this.paths, true); - } else if (this.selectors) { - this.selectors = visitor.visitArray(this.selectors); - } - if (this.rules && this.rules.length) { - this.rules = visitor.visitArray(this.rules); - } - }, - eval: function (env) { - var thisSelectors = this.selectors, selectors, - selCnt, i, defaultFunc = tree.defaultFunc; - if (thisSelectors && (selCnt = thisSelectors.length)) { - selectors = []; - defaultFunc.error({ - type: "Syntax", - message: "it is currently only allowed in parametric mixin guards," - }); - for (i = 0; i < selCnt; i++) { - selectors.push(thisSelectors[i].eval(env)); - } - defaultFunc.reset(); - } - - var rules = this.rules ? this.rules.slice(0) : null, - ruleset = new(tree.Ruleset)(selectors, rules, this.strictImports), - rule; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - var envFrames = env.frames; - envFrames.unshift(ruleset); - - // currrent selectors - var envSelectors = env.selectors; - if (!envSelectors) { - env.selectors = envSelectors = []; - } - envSelectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - var rsRules = ruleset.rules, rsRuleCnt = rsRules ? rsRules.length : 0; - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Definition) { - rsRules[i].frames = envFrames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Call) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (i = 0; i < rsRuleCnt; i++) { - rule = rsRules[i]; - if (! (rule instanceof tree.mixin.Definition)) { - rsRules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - envFrames.shift(); - envSelectors.shift(); - - if (env.mediaBlocks) { - for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var rules = this.rules, i, importRules; - if (!rules) { return; } - - for (i = 0; i < rules.length; i++) { - if (rules[i] instanceof tree.Import) { - importRules = rules[i].eval(env); - if (importRules && importRules.length) { - rules.splice.apply(rules, [i, 1].concat(importRules)); - i+= importRules.length-1; - } else { - rules.splice(i, 1, importRules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - matchCondition: function (args, env) { - var lastSelector = this.selectors[this.selectors.length-1]; - if (lastSelector.condition && - !lastSelector.condition.eval( - new(tree.evalEnv)(env, - env.frames))) { - return false; - } - return true; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (!this._variables) { - this._variables = !this.rules ? {} : this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - return this._variables; - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (!this.rules) { return null; } - - var _Ruleset = tree.Ruleset, _MixinDefinition = tree.mixin.Definition, - filtRules = [], rules = this.rules, cnt = rules.length, - i, rule; - - for (i = 0; i < cnt; i++) { - rule = rules[i]; - if ((rule instanceof _Ruleset) || (rule instanceof _MixinDefinition)) { - filtRules.push(rule); - } - } - - return filtRules; - }, - prependRule: function (rule) { - var rules = this.rules; - if (rules) { rules.unshift(rule); } else { this.rules = [ rule ]; } - }, - find: function (selector, self) { - self = self || this; - var rules = [], match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key]; } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - match = selector.match(rule.selectors[j]); - if (match) { - if (selector.elements.length > match) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(match)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - this._lookups[key] = rules; - return rules; - }, - genCSS: function (env, output) { - var i, j, - ruleNodes = [], - rulesetNodes = [], - rulesetNodeCnt, - debugInfo, // Line number debugging - rule, - path; - - env.tabLevel = (env.tabLevel || 0); - - if (!this.root) { - env.tabLevel++; - } - - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "), - sep; - - for (i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - if (rule.rules || (rule instanceof tree.Media) || rule instanceof tree.Directive || (this.root && rule instanceof tree.Comment)) { - rulesetNodes.push(rule); - } else { - ruleNodes.push(rule); - } - } - - // If this is the root node, we don't render - // a selector, or {}. - if (!this.root) { - debugInfo = tree.debugInfo(env, this, tabSetStr); - - if (debugInfo) { - output.add(debugInfo); - output.add(tabSetStr); - } - - var paths = this.paths, pathCnt = paths.length, - pathSubCnt; - - sep = env.compress ? ',' : (',\n' + tabSetStr); - - for (i = 0; i < pathCnt; i++) { - path = paths[i]; - if (!(pathSubCnt = path.length)) { continue; } - if (i > 0) { output.add(sep); } - - env.firstSelector = true; - path[0].genCSS(env, output); - - env.firstSelector = false; - for (j = 1; j < pathSubCnt; j++) { - path[j].genCSS(env, output); - } - } - - output.add((env.compress ? '{' : ' {\n') + tabRuleStr); - } - - // Compile rules and rulesets - for (i = 0; i < ruleNodes.length; i++) { - rule = ruleNodes[i]; - - // @page{ directive ends up with root elements inside it, a mix of rules and rulesets - // In this instance we do not know whether it is the last property - if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) { - env.lastRule = true; - } - - if (rule.genCSS) { - rule.genCSS(env, output); - } else if (rule.value) { - output.add(rule.value.toString()); - } - - if (!env.lastRule) { - output.add(env.compress ? '' : ('\n' + tabRuleStr)); - } else { - env.lastRule = false; - } - } - - if (!this.root) { - output.add((env.compress ? '}' : '\n' + tabSetStr + '}')); - env.tabLevel--; - } - - sep = (env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr); - rulesetNodeCnt = rulesetNodes.length; - if (rulesetNodeCnt) { - if (ruleNodes.length && sep) { output.add(sep); } - rulesetNodes[0].genCSS(env, output); - for (i = 1; i < rulesetNodeCnt; i++) { - if (sep) { output.add(sep); } - rulesetNodes[i].genCSS(env, output); - } - } - - if (!output.isEmpty() && !env.compress && this.firstRoot) { - output.add('\n'); - } - }, - - toCSS: tree.toCSS, - - markReferenced: function () { - for (var s = 0; s < this.selectors.length; s++) { - this.selectors[s].markReferenced(); - } - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for (i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for (j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length === 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0, el.index, el.currentFileInfo)); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for (k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = selector.createDerived([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for (i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length === 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for (i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); - -(function (tree) { - -tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) { - this.elements = elements; - this.extendList = extendList; - this.condition = condition; - this.currentFileInfo = currentFileInfo || {}; - this.isReferenced = isReferenced; - if (!condition) { - this.evaldCondition = true; - } -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - if (this.elements) { - this.elements = visitor.visitArray(this.elements); - } - if (this.extendList) { - this.extendList = visitor.visitArray(this.extendList); - } - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - createDerived: function(elements, extendList, evaldCondition) { - evaldCondition = (evaldCondition != null) ? evaldCondition : this.evaldCondition; - var newSelector = new(tree.Selector)(elements, extendList || this.extendList, this.condition, this.index, this.currentFileInfo, this.isReferenced); - newSelector.evaldCondition = evaldCondition; - return newSelector; - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, i; - - oelements = other.elements.map( function(v) { - return v.combinator.value + (v.value.value || v.value); - }).join("").match(/[,&#\.\w-]([\w-]|(\\.))*/g); - // ^ regexp could be more simple but see test/less/css-escapes.less:17, doh! - - if (!oelements) { - return 0; - } - - if (oelements[0] === "&") { - oelements.shift(); - } - - olen = oelements.length; - if (olen === 0 || len < olen) { - return 0; - } else { - for (i = 0; i < olen; i++) { - if (elements[i].value !== oelements[i]) { - return 0; - } - } - } - return olen; // return number of matched elements - }, - eval: function (env) { - var evaldCondition = this.condition && this.condition.eval(env), - elements = this.elements, extendList = this.extendList; - - elements = elements && elements.map(function (e) { return e.eval(env); }); - extendList = extendList && extendList.map(function(extend) { return extend.eval(env); }); - - return this.createDerived(elements, extendList, evaldCondition); - }, - genCSS: function (env, output) { - var i, element; - if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") { - output.add(' ', this.currentFileInfo, this.index); - } - if (!this._css) { - //TODO caching? speed comparison? - for(i = 0; i < this.elements.length; i++) { - element = this.elements[i]; - element.genCSS(env, output); - } - } - }, - toCSS: tree.toCSS, - markReferenced: function () { - this.isReferenced = true; - }, - getIsReferenced: function() { - return !this.currentFileInfo.reference || this.isReferenced; - }, - getIsOutput: function() { - return this.evaldCondition; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - eval: function () { return this; } -}; - -})(require('../tree')); - -(function (tree) { - -tree.URL = function (val, currentFileInfo, isEvald) { - this.value = val; - this.currentFileInfo = currentFileInfo; - this.isEvald = isEvald; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add("url("); - this.value.genCSS(env, output); - output.add(")"); - }, - toCSS: tree.toCSS, - eval: function (ctx) { - var val = this.value.eval(ctx), - rootpath; - - if (!this.isEvald) { - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - val.value = ctx.normalizePath(val.value); - } - - return new(tree.URL)(val, this.currentFileInfo, true); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - genCSS: function (env, output) { - var i; - for(i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i+1 < this.value.length) { - output.add((env && env.compress) ? ',' : ', '); - } - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { - this.name = name; - this.index = index; - this.currentFileInfo = currentFileInfo || {}; -}; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, name = this.name; - - if (name.indexOf('@@') === 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - variable = tree.find(env.frames, function (frame) { - var v = frame.variable(name); - if (v) { - return v.value.eval(env); - } - }); - if (variable) { - this.evaluating = false; - return variable; - } else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); - -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // map - filename to contents of all the files - 'contentsIgnoredChars', // map - filename to lines at the begining of each file to ignore - 'relativeUrls', // option - whether to adjust URL's to be relative - 'rootpath', // option - rootpath to append to URL's - 'strictImports', // option - - 'insecure', // option - whether to allow imports from insecure ssl hosts - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true - 'mime', // browser only - mime type for sheet import - 'useFileCache', // browser only - whether to use the per file session cache - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' - absolute path to the entry file - // 'reference' - whether the file should not be output and only output parts that are referenced - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.contentsIgnoredChars) { this.contentsIgnoredChars = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits', // whether units need to evaluate correctly - 'cleancss', // whether to compress with clean-css - 'sourceMap', // whether to output a source map - 'importMultiple'// whether we are currently importing multiple copies - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - tree.evalEnv.prototype.normalizePath = function( path ) { - var - segments = path.split("/").reverse(), - segment; - - path = []; - while (segments.length !== 0 ) { - segment = segments.pop(); - switch( segment ) { - case ".": - break; - case "..": - if ((path.length === 0) || (path[path.length - 1] === "..")) { - path.push( segment ); - } else { - path.pop(); - } - break; - default: - path.push( segment ); - break; - } - } - - return path.join("/"); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - }; - -})(require('./tree')); - -(function (tree) { - - var _visitArgs = { visitDeeper: true }, - _hasIndexed = false; - - function _noop(node) { - return node; - } - - function indexNodeTypes(parent, ticker) { - // add .typeIndex to tree node types for lookup table - var key, child; - for (key in parent) { - child = parent[key]; - switch (typeof child) { - case "function": - // ignore bound functions directly on tree which do not have a prototype - // or aren't nodes - if (child.prototype && child.prototype.type) { - child.prototype.typeIndex = ticker++; - } - break; - case "object": - ticker = indexNodeTypes(child, ticker); - break; - } - } - return ticker; - } - - tree.visitor = function(implementation) { - this._implementation = implementation; - this._visitFnCache = []; - - if (!_hasIndexed) { - indexNodeTypes(tree, 1); - _hasIndexed = true; - } - }; - - tree.visitor.prototype = { - visit: function(node) { - if (!node) { - return node; - } - - var nodeTypeIndex = node.typeIndex; - if (!nodeTypeIndex) { - return node; - } - - var visitFnCache = this._visitFnCache, - impl = this._implementation, - aryIndx = nodeTypeIndex << 1, - outAryIndex = aryIndx | 1, - func = visitFnCache[aryIndx], - funcOut = visitFnCache[outAryIndex], - visitArgs = _visitArgs, - fnName; - - visitArgs.visitDeeper = true; - - if (!func) { - fnName = "visit" + node.type; - func = impl[fnName] || _noop; - funcOut = impl[fnName + "Out"] || _noop; - visitFnCache[aryIndx] = func; - visitFnCache[outAryIndex] = funcOut; - } - - if (func !== _noop) { - var newNode = func.call(impl, node, visitArgs); - if (impl.isReplacing) { - node = newNode; - } - } - - if (visitArgs.visitDeeper && node && node.accept) { - node.accept(this); - } - - if (funcOut != _noop) { - funcOut.call(impl, node); - } - - return node; - }, - visitArray: function(nodes, nonReplacing) { - if (!nodes) { - return nodes; - } - - var cnt = nodes.length, i; - - // Non-replacing - if (nonReplacing || !this._implementation.isReplacing) { - for (i = 0; i < cnt; i++) { - this.visit(nodes[i]); - } - return nodes; - } - - // Replacing - var out = []; - for (i = 0; i < cnt; i++) { - var evald = this.visit(nodes[i]); - if (!evald.splice) { - out.push(evald); - } else if (evald.length) { - this.flatten(evald, out); - } - } - return out; - }, - flatten: function(arr, out) { - if (!out) { - out = []; - } - - var cnt, i, item, - nestedCnt, j, nestedItem; - - for (i = 0, cnt = arr.length; i < cnt; i++) { - item = arr[i]; - if (!item.splice) { - out.push(item); - continue; - } - - for (j = 0, nestedCnt = item.length; j < nestedCnt; j++) { - nestedItem = item[j]; - if (!nestedItem.splice) { - out.push(nestedItem); - } else if (nestedItem.length) { - this.flatten(nestedItem, out); - } - } - } - - return out; - } - }; - -})(require('./tree')); -(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode, - inlineCSS = importNode.options.inline; - - if (!importNode.css || inlineCSS) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - - if (importNode.options.multiple) { - env.importMultiple = true; - } - - this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, imported, fullPath) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - - if (imported && !env.importMultiple) { importNode.skip = imported; } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - importNode.importedFilename = fullPath; - if (!inlineCSS && !importNode.skip) { - new(tree.importVisitor)(importVisitor._importer, subFinish, env) - .run(root); - return; - } - } - - subFinish(); - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree')); -(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1], - paths = [], selectors; - - this.contexts.push(paths); - - if (! rulesetNode.root) { - selectors = rulesetNode.selectors; - if (selectors) { - selectors = selectors.filter(function(selector) { return selector.getIsOutput(); }); - rulesetNode.selectors = selectors.length ? selectors : (selectors = null); - if (selectors) { rulesetNode.joinSelectors(paths, context, selectors); } - } - if (!selectors) { rulesetNode.rules = null; } - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree')); -(function (tree) { - tree.toCSSVisitor = function(env) { - this._visitor = new tree.visitor(this); - this._env = env; - }; - - tree.toCSSVisitor.prototype = { - isReplacing: true, - run: function (root) { - return this._visitor.visit(root); - }, - - visitRule: function (ruleNode, visitArgs) { - if (ruleNode.variable) { - return []; - } - return ruleNode; - }, - - visitMixinDefinition: function (mixinNode, visitArgs) { - return []; - }, - - visitExtend: function (extendNode, visitArgs) { - return []; - }, - - visitComment: function (commentNode, visitArgs) { - if (commentNode.isSilent(this._env)) { - return []; - } - return commentNode; - }, - - visitMedia: function(mediaNode, visitArgs) { - mediaNode.accept(this._visitor); - visitArgs.visitDeeper = false; - - if (!mediaNode.rules.length) { - return []; - } - return mediaNode; - }, - - visitDirective: function(directiveNode, visitArgs) { - if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) { - return []; - } - if (directiveNode.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (this.charset) { - if (directiveNode.debugInfo) { - var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n"); - comment.debugInfo = directiveNode.debugInfo; - return this._visitor.visit(comment); - } - return []; - } - this.charset = true; - } - return directiveNode; - }, - - checkPropertiesInRoot: function(rules) { - var ruleNode; - for(var i = 0; i < rules.length; i++) { - ruleNode = rules[i]; - if (ruleNode instanceof tree.Rule && !ruleNode.variable) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null}; - } - } - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var rule, rulesets = []; - if (rulesetNode.firstRoot) { - this.checkPropertiesInRoot(rulesetNode.rules); - } - if (! rulesetNode.root) { - if (rulesetNode.paths) { - rulesetNode.paths = rulesetNode.paths - .filter(function(p) { - var i; - if (p[0].elements[0].combinator.value === ' ') { - p[0].elements[0].combinator = new(tree.Combinator)(''); - } - for(i = 0; i < p.length; i++) { - if (p[i].getIsReferenced() && p[i].getIsOutput()) { - return true; - } - } - return false; - }); - } - - // Compile rules and rulesets - var nodeRules = rulesetNode.rules, nodeRuleCnt = nodeRules ? nodeRules.length : 0; - for (var i = 0; i < nodeRuleCnt; ) { - rule = nodeRules[i]; - if (rule && rule.rules) { - // visit because we are moving them out from being a child - rulesets.push(this._visitor.visit(rule)); - nodeRules.splice(i, 1); - nodeRuleCnt--; - continue; - } - i++; - } - // accept the visitor to remove rules and refactor itself - // then we can decide now whether we want it or not - if (nodeRuleCnt > 0) { - rulesetNode.accept(this._visitor); - } else { - rulesetNode.rules = null; - } - visitArgs.visitDeeper = false; - - nodeRules = rulesetNode.rules; - if (nodeRules) { - this._mergeRules(nodeRules); - nodeRules = rulesetNode.rules; - } - if (nodeRules) { - this._removeDuplicateRules(nodeRules); - nodeRules = rulesetNode.rules; - } - - // now decide whether we keep the ruleset - if (nodeRules && nodeRules.length > 0 && rulesetNode.paths.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } else { - rulesetNode.accept(this._visitor); - visitArgs.visitDeeper = false; - if (rulesetNode.firstRoot || (rulesetNode.rules && rulesetNode.rules.length > 0)) { - rulesets.splice(0, 0, rulesetNode); - } - } - if (rulesets.length === 1) { - return rulesets[0]; - } - return rulesets; - }, - - _removeDuplicateRules: function(rules) { - if (!rules) { return; } - - // remove duplicates - var ruleCache = {}, - ruleList, rule, i; - - for(i = rules.length - 1; i >= 0 ; i--) { - rule = rules[i]; - if (rule instanceof tree.Rule) { - if (!ruleCache[rule.name]) { - ruleCache[rule.name] = rule; - } else { - ruleList = ruleCache[rule.name]; - if (ruleList instanceof tree.Rule) { - ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)]; - } - var ruleCSS = rule.toCSS(this._env); - if (ruleList.indexOf(ruleCSS) !== -1) { - rules.splice(i, 1); - } else { - ruleList.push(ruleCSS); - } - } - } - } - }, - - _mergeRules: function (rules) { - if (!rules) { return; } - - var groups = {}, - parts, - rule, - key; - - for (var i = 0; i < rules.length; i++) { - rule = rules[i]; - - if ((rule instanceof tree.Rule) && rule.merge) { - key = [rule.name, - rule.important ? "!" : ""].join(","); - - if (!groups[key]) { - groups[key] = []; - } else { - rules.splice(i--, 1); - } - - groups[key].push(rule); - } - } - - Object.keys(groups).map(function (k) { - parts = groups[k]; - - if (parts.length > 1) { - rule = parts[0]; - - rule.value = new (tree.Value)(parts.map(function (p) { - return p.value; - })); - } - }); - } - }; - -})(require('./tree')); -(function (tree) { - /*jshint loopfunc:true */ - - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - var rules = rulesetNode.rules, ruleCnt = rules ? rules.length : 0; - for(i = 0; i < ruleCnt; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rules[i]); - rulesetNode.extendOnEveryPath = true; - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - var paths = rulesetNode.paths; - for(i = 0; i < paths.length; i++) { - var selectorPath = paths[i], - selector = selectorPath[selectorPath.length - 1], - selExtendList = selector.extendList; - - extendList = selExtendList ? selExtendList.slice(0).concat(allSelectorsExtendList) - : allSelectorsExtendList; - - if (extendList) { - extendList = extendList.map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - } - - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if( extend.parent_ids.indexOf( targetExtend.object_id ) >= 0 ){ continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parent_ids = newExtend.parent_ids.concat(targetExtend.parent_ids, extend.parent_ids); - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (rulesetNode.extendOnEveryPath) { continue; } - var extendList = selectorPath[selectorPath.length-1].extendList; - if (extendList && extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator === '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - elementValue1 = elementValue1.value; - elementValue2 = elementValue2.value; - if (elementValue1 instanceof tree.Selector) { - if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) { - return false; - } - for(var i = 0; i currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - newElements = selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)); - - if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) { - path[path.length - 1].elements = - path[path.length - 1].elements.concat(newElements); - } else { - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - newElements - )); - } - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.sourceMapOutput = function (options) { - this._css = []; - this._rootNode = options.rootNode; - this._writeSourceMap = options.writeSourceMap; - this._contentsMap = options.contentsMap; - this._contentsIgnoredCharsMap = options.contentsIgnoredCharsMap; - this._sourceMapFilename = options.sourceMapFilename; - this._outputFilename = options.outputFilename; - this._sourceMapURL = options.sourceMapURL; - if (options.sourceMapBasepath) { - this._sourceMapBasepath = options.sourceMapBasepath.replace(/\\/g, '/'); - } - this._sourceMapRootpath = options.sourceMapRootpath; - this._outputSourceFiles = options.outputSourceFiles; - this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator; - - if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') { - this._sourceMapRootpath += '/'; - } - - this._lineNumber = 0; - this._column = 0; - }; - - tree.sourceMapOutput.prototype.normalizeFilename = function(filename) { - filename = filename.replace(/\\/g, '/'); - - if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) { - filename = filename.substring(this._sourceMapBasepath.length); - if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') { - filename = filename.substring(1); - } - } - return (this._sourceMapRootpath || "") + filename; - }; - - tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) { - - //ignore adding empty strings - if (!chunk) { - return; - } - - var lines, - sourceLines, - columns, - sourceColumns, - i; - - if (fileInfo) { - var inputSource = this._contentsMap[fileInfo.filename]; - - // remove vars/banner added to the top of the file - if (this._contentsIgnoredCharsMap[fileInfo.filename]) { - // adjust the index - index -= this._contentsIgnoredCharsMap[fileInfo.filename]; - if (index < 0) { index = 0; } - // adjust the source - inputSource = inputSource.slice(this._contentsIgnoredCharsMap[fileInfo.filename]); - } - inputSource = inputSource.substring(0, index); - sourceLines = inputSource.split("\n"); - sourceColumns = sourceLines[sourceLines.length-1]; - } - - lines = chunk.split("\n"); - columns = lines[lines.length-1]; - - if (fileInfo) { - if (!mapLines) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column}, - original: { line: sourceLines.length, column: sourceColumns.length}, - source: this.normalizeFilename(fileInfo.filename)}); - } else { - for(i = 0; i < lines.length; i++) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0}, - original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0}, - source: this.normalizeFilename(fileInfo.filename)}); - } - } - } - - if (lines.length === 1) { - this._column += columns.length; - } else { - this._lineNumber += lines.length - 1; - this._column = columns.length; - } - - this._css.push(chunk); - }; - - tree.sourceMapOutput.prototype.isEmpty = function() { - return this._css.length === 0; - }; - - tree.sourceMapOutput.prototype.toCSS = function(env) { - this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null }); - - if (this._outputSourceFiles) { - for(var filename in this._contentsMap) { - var source = this._contentsMap[filename]; - if (this._contentsIgnoredCharsMap[filename]) { - source = source.slice(this._contentsIgnoredCharsMap[filename]); - } - this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), source); - } - } - - this._rootNode.genCSS(env, this); - - if (this._css.length > 0) { - var sourceMapURL, - sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); - - if (this._sourceMapURL) { - sourceMapURL = this._sourceMapURL; - } else if (this._sourceMapFilename) { - sourceMapURL = this.normalizeFilename(this._sourceMapFilename); - } - - if (this._writeSourceMap) { - this._writeSourceMap(sourceMapContent); - } else { - sourceMapURL = "data:application/json," + encodeURIComponent(sourceMapContent); - } - - if (sourceMapURL) { - this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */"); - } - } - - return this._css.join(''); - }; - -})(require('./tree')); - -// -// browser.js - client-side engine -// -/*global less, window, document, XMLHttpRequest, location */ - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - (location.port && - location.port.length > 0) || - isFileProtocol ? 'development' - : 'production'); - -var logLevel = { - info: 2, - errors: 1, - none: 0 -}; - -// The amount of logging in the javascript console. -// 2 - Information and errors -// 1 - Errors -// 0 - None -// Defaults to 2 -less.logLevel = typeof(less.logLevel) != 'undefined' ? less.logLevel : logLevel.info; - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - less.tree.functions[func] = less.functions[func]; - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -var typePattern = /^text\/(x-)?less$/; -var cache = null; -var fileCache = {}; - -function log(str, level) { - if (less.env == 'development' && typeof(console) !== 'undefined' && less.logLevel >= level) { - console.log('less: ' + str); - } -} - -function extractId(href) { - return href.replace(/^[a-z-]+:\/+?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function errorConsole(e, rootHref) { - var template = '{line} {content}'; - var filename = e.filename || rootHref; - var errors = []; - var content = (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - " in " + filename + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n' + - errors.join('\n'); - } else if (e.stack) { - content += e.stack; - } - log(content, logLevel.errors); -} - -function createCSS(styles, sheet, lastModified) { - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If this has already been inserted into the DOM, we may need to replace it - var oldCss = document.getElementById(id); - var keepOldCss = false; - - // Create a new stylesheet node for insertion or (if necessary) replacement - var css = document.createElement('style'); - css.setAttribute('type', 'text/css'); - if (sheet.media) { - css.setAttribute('media', sheet.media); - } - css.id = id; - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - css.appendChild(document.createTextNode(styles)); - - // If new contents match contents of oldCss, don't replace oldCss - keepOldCss = (oldCss !== null && oldCss.childNodes.length > 0 && css.childNodes.length > 0 && - oldCss.firstChild.nodeValue === css.firstChild.nodeValue); - } - - var head = document.getElementsByTagName('head')[0]; - - // If there is no oldCss, just append; otherwise, only append if we need - // to replace oldCss with an updated stylesheet - if (oldCss === null || keepOldCss === false) { - var nextEl = sheet && sheet.nextSibling || null; - if (nextEl) { - nextEl.parentNode.insertBefore(css, nextEl); - } else { - head.appendChild(css); - } - } - if (oldCss && keepOldCss === false) { - oldCss.parentNode.removeChild(oldCss); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.', logLevel.info); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save', logLevel.errors); - } - } -} - -function errorHTML(e, rootHref) { - var id = 'less-error-message:' + extractId(rootHref || ""); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, errors = []; - var filename = e.filename || rootHref; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - '

    ' + '

    in ' + filenameNoPath + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - '
      ' + errors.join('') + '
    '; - } else if (e.stack) { - content += '
    ' + e.stack.split('\n').slice(1).join('
    '); - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #dd6666;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.line {', - 'color: #ff0000;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); - - if (less.env == 'development') { - timer = setInterval(function () { - if (document.body) { - if (document.getElementById(id)) { - document.body.replaceChild(elem, document.getElementById(id)); - } else { - document.body.insertBefore(elem, document.body.firstChild); - } - clearInterval(timer); - } - }, 10); - } -} - -function error(e, rootHref) { - if (!less.errorReporting || less.errorReporting === "html") { - errorHTML(e, rootHref); - } else if (less.errorReporting === "console") { - errorConsole(e, rootHref); - } else if (typeof less.errorReporting === 'function') { - less.errorReporting("add", e, rootHref); - } -} - -function removeErrorHTML(path) { - var node = document.getElementById('less-error-message:' + extractId(path)); - if (node) { - node.parentNode.removeChild(node); - } -} - -function removeErrorConsole(path) { - //no action -} - -function removeError(path) { - if (!less.errorReporting || less.errorReporting === "html") { - removeErrorHTML(path); - } else if (less.errorReporting === "console") { - removeErrorConsole(path); - } else if (typeof less.errorReporting === 'function') { - less.errorReporting("remove", path); - } -} - -function loadStyles(modifyVars) { - var styles = document.getElementsByTagName('style'), - style; - for (var i = 0; i < styles.length; i++) { - style = styles[i]; - if (style.type.match(typePattern)) { - var env = new less.tree.parseEnv(less), - lessText = style.innerHTML || ''; - env.filename = document.location.href.replace(/#.*$/, ''); - - if (modifyVars || less.globalVars) { - env.useFileCache = true; - } - - /*jshint loopfunc:true */ - // use closure to store current value of i - var callback = (function(style) { - return function (e, cssAST) { - if (e) { - return error(e, "inline"); - } - var css = cssAST.toCSS(less); - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }; - })(style); - new(less.Parser)(env).parse(lessText, callback, {globalVars: less.globalVars, modifyVars: modifyVars}); - } - } -} - -function extractUrlParts(url, baseUrl) { - // urlParts[1] = protocol&hostname || / - // urlParts[2] = / if path relative to host base - // urlParts[3] = directories - // urlParts[4] = filename - // urlParts[5] = parameters - - var urlPartsRegex = /^((?:[a-z-]+:)?\/+?(?:[^\/\?#]*\/)|([\/\\]))?((?:[^\/\\\?#]*[\/\\])*)([^\/\\\?#]*)([#\?].*)?$/i, - urlParts = url.match(urlPartsRegex), - returner = {}, directories = [], i, baseUrlParts; 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(match = tok.exec(current))) { - return null; - } - - length = match[0].length; - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - - // Specialization of $(tok) - function $re(tok) { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - var m = tok.exec(current); - if (!m) { - return null; - } - - skipWhitespace(m[0].length); - if(typeof m === "string") { - return m; - } - - return m.length === 1 ? m[0] : m; - } - - var _$re = $re; - - // Specialization of $(tok) - function $char(tok) { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - curr = i - currentPos, - endIndex = i + current.length - curr, - mem = (i += length), - inp = input, - c; - - for (; i < endIndex; i++) { - c = inp.charCodeAt(i); - if (c > 32) { - break; - } - - if ((c !== 32) && (c !== 10) && (c !== 9) && (c !== 13)) { - break; - } - } - - current = current.slice(length + i - mem + curr); - currentPos = i; - - if (!current.length && (j < chunks.length - 1)) { - current = chunks[++j]; - } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - // some older browsers return typeof 'function' for RegExp - var result = (Object.prototype.toString.call(arg) === '[object Function]') ? arg.call(parsers) : $(arg); - if (result) { - return result; - } - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } - - // Specialization of expect() - function expectChar(arg, msg) { - if (input.charAt(i) === arg) { - skipWhitespace(1); - return arg; - } - error(msg || "expected '" + arg + "' got '" + input.charAt(i) + "'"); - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - return tok.test(current); - } - } - - // Specialization of peek() - function peekChar(tok) { - return input.charAt(i) === tok; - } - - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, inputStream) { - var n = index + 1, - line = null, - column = -1; - - while (--n >= 0 && inputStream.charAt(n) !== '\n') { - column++; - } - - if (typeof index === 'number') { - line = (inputStream.slice(0, index).match(/\n/g) || "").length; - } - - return { - line: line, - column: column - }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - callLine = e.call && getLocation(e.call, input).line, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = callLine + 1; - this.callExtract = lines[callLine]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // @param str A string containing 'less' markup - // @param callback call `callback` when done. - // @param [additionalData] An optional map which can contains vars - a map (key, value) of variables to apply - // - parse: function (str, callback, additionalData) { - var root, line, lines, error = null, globalVars, modifyVars, preText = ""; - - i = j = currentPos = furthest = 0; - - globalVars = (additionalData && additionalData.globalVars) ? less.Parser.serializeVars(additionalData.globalVars) + '\n' : ''; - modifyVars = (additionalData && additionalData.modifyVars) ? '\n' + less.Parser.serializeVars(additionalData.modifyVars) : ''; - - if (globalVars || (additionalData && additionalData.banner)) { - preText = ((additionalData && additionalData.banner) ? additionalData.banner : "") + globalVars; - parser.imports.contentsIgnoredChars[env.currentFileInfo.filename] = preText.length; - } - - str = str.replace(/\r\n/g, '\n'); - // Remove potential UTF Byte Order Mark - input = str = preText + str.replace(/^\uFEFF/, '') + modifyVars; - parser.imports.contents[env.currentFileInfo.filename] = str; - - // Split the input into chunks. - chunks = (function (input) { - var len = input.length, level = 0, parenLevel = 0, - lastOpening, lastClosing, lastMultiComment, lastMultiCommentEndBrace, - chunks = [], emitFrom = 0, - parserCurrentIndex, currentChunkStartIndex, cc, cc2, matched; - - function fail(msg, index) { - error = new(LessError)({ - index: index || parserCurrentIndex, - type: 'Parse', - message: msg, - filename: env.currentFileInfo.filename - }, env); - } - - function emitChunk(force) { - var len = parserCurrentIndex - emitFrom; - if (((len < 512) && !force) || !len) { - return; - } - chunks.push(input.slice(emitFrom, parserCurrentIndex + 1)); - emitFrom = parserCurrentIndex + 1; - } - - for (parserCurrentIndex = 0; parserCurrentIndex < len; parserCurrentIndex++) { - cc = input.charCodeAt(parserCurrentIndex); - if (((cc >= 97) && (cc <= 122)) || (cc < 34)) { - // a-z or whitespace - continue; - } - - switch (cc) { - case 40: // ( - parenLevel++; continue; - case 41: // ) - parenLevel--; continue; - case 59: // ; - if (!parenLevel) { emitChunk(); } - continue; - case 123: // { - level++; lastOpening = parserCurrentIndex; continue; - case 125: // } - level--; lastClosing = parserCurrentIndex; - if (!level) { emitChunk(); } - continue; - case 92: // \ - if (parserCurrentIndex < len - 1) { parserCurrentIndex++; continue; } - return fail("unescaped `\\`"); - case 34: - case 39: - case 96: // ", ' and ` - matched = 0; - currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 1; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 > 96) { continue; } - if (cc2 == cc) { matched = 1; break; } - if (cc2 == 92) { // \ - if (parserCurrentIndex == len - 1) { - return fail("unescaped `\\`"); - } - parserCurrentIndex++; - } - } - if (matched) { continue; } - return fail("unmatched `" + String.fromCharCode(cc) + "`", currentChunkStartIndex); - case 47: // /, check for comment - if (parenLevel || (parserCurrentIndex == len - 1)) { continue; } - cc2 = input.charCodeAt(parserCurrentIndex + 1); - if (cc2 == 47) { - // //, find lnfeed - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if ((cc2 <= 13) && ((cc2 == 10) || (cc2 == 13))) { break; } - } - } else if (cc2 == 42) { - // /*, find */ - lastMultiComment = currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len - 1; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 == 125) { lastMultiCommentEndBrace = parserCurrentIndex; } - if (cc2 != 42) { continue; } - if (input.charCodeAt(parserCurrentIndex + 1) == 47) { break; } - } - if (parserCurrentIndex == len - 1) { - return fail("missing closing `*/`", currentChunkStartIndex); - } - } - continue; - case 42: // *, check for unmatched */ - if ((parserCurrentIndex < len - 1) && (input.charCodeAt(parserCurrentIndex + 1) == 47)) { - return fail("unmatched `/*`"); - } - continue; - } - } - - if (level !== 0) { - if (level > 0) { - if ((lastMultiComment > lastOpening) && (lastMultiCommentEndBrace > lastMultiComment)) { - return fail("missing closing `}` or `*/`", lastOpening); - } else { - return fail("missing closing `}`", lastOpening); - } - } - return fail("missing opening `{`", lastClosing); - } else if (parenLevel !== 0) { - return fail((parenLevel > 0) ? "missing closing `)`" : "missing opening `(`"); - } - - emitChunk(true); - return chunks; - })(str); - - if (error) { - return callback(new(LessError)(error, env)); - } - - current = chunks[0]; - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)(null, this.parsers.primary()); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - return function (options, variables) { - options = options || {}; - var evaldRoot, - css, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, null, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var preEvalVisitors = [], - visitors = [ - new(tree.joinSelectorVisitor)(), - new(tree.processExtendsVisitor)(), - new(tree.toCSSVisitor)({compress: Boolean(options.compress)}) - ], i, root = this; - - if (options.plugins) { - for(i =0; i < options.plugins.length; i++) { - if (options.plugins[i].isPreEvalVisitor) { - preEvalVisitors.push(options.plugins[i]); - } else { - if (options.plugins[i].isPreVisitor) { - visitors.splice(0, 0, options.plugins[i]); - } else { - visitors.push(options.plugins[i]); - } - } - } - } - - for(i = 0; i < preEvalVisitors.length; i++) { - preEvalVisitors[i].run(root); - } - - evaldRoot = evaluate.call(root, evalEnv); - - for(i = 0; i < visitors.length; i++) { - visitors[i].run(evaldRoot); - } - - if (options.sourceMap) { - evaldRoot = new tree.sourceMapOutput( - { - contentsIgnoredCharsMap: parser.imports.contentsIgnoredChars, - writeSourceMap: options.writeSourceMap, - rootNode: evaldRoot, - contentsMap: parser.imports.contents, - sourceMapFilename: options.sourceMapFilename, - sourceMapURL: options.sourceMapURL, - outputFilename: options.sourceMapOutputFilename, - sourceMapBasepath: options.sourceMapBasepath, - sourceMapRootpath: options.sourceMapRootpath, - outputSourceFiles: options.outputSourceFiles, - sourceMapGenerator: options.sourceMapGenerator - }); - } - - css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits)}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.cleancss && less.mode === 'node') { - var CleanCSS = require('clean-css'), - cleancssOptions = options.cleancssOptions || {}; - - if (cleancssOptions.keepSpecialComments === undefined) { - cleancssOptions.keepSpecialComments = "*"; - } - cleancssOptions.processImport = false; - cleancssOptions.noRebase = true; - if (cleancssOptions.noAdvanced === undefined) { - cleancssOptions.noAdvanced = true; - } - - return new CleanCSS(cleancssOptions).minify(css); - } else if (options.compress) { - return css.replace(/(^(\s)+)|((\s)+$)/g, ""); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - var loc = getLocation(i, input); - lines = input.split('\n'); - line = loc.line + 1; - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: loc.column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - return callback(e); - } - else { - return callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - return finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: parsers = { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var mixin = this.mixin, $re = _$re, root = [], node; - - while (current) - { - node = this.extendRule() || mixin.definition() || this.rule() || this.ruleset() || - mixin.call() || this.comment() || this.directive(); - if (node) { - root.push(node); - } else { - if (!($re(/^[\s\n]+/) || $re(/^;+/))) { - break; - } - } - } - - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') { return; } - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($re(/^\/\/.*/), true, i, env.currentFileInfo); - } - comment = $re(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/); - if (comment) { - return new(tree.Comment)(comment, false, i, env.currentFileInfo); - } - }, - - comments: function () { - var comment, comments = []; - - while(true) { - comment = this.comment(); - if (!comment) { - break; - } - comments.push(comment); - } - - return comments; - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; } - - if (e) { $char('~'); } - - str = $re(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/); - if (str) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - k = $re(/^[_A-Za-z-][_A-Za-z0-9-]*/); - if (k) { - var color = tree.Color.fromKeyword(k); - if (color) { - return color; - } - return new(tree.Keyword)(k); - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(current); - if (!name) { return; } - - name = name[1]; - nameLC = name.toLowerCase(); - if (nameLC === 'url') { - return null; - } - - i += name.length; - - if (nameLC === 'alpha') { - alpha_ret = parsers.alpha(); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $char('('); // Parse the '(' and consume whitespace. - - args = this.arguments(); - - if (! $char(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (true) { - arg = this.assignment() || parsers.expression(); - if (!arg) { - break; - } - args.push(arg); - if (! $char(',')) { - break; - } - } - return args; - }, - literal: function () { - return this.dimension() || - this.color() || - this.quoted() || - this.unicodeDescriptor(); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - key = $re(/^\w+(?=\s?=)/i); - if (!key) { - return; - } - if (!$char('=')) { - return; - } - value = parsers.entity(); - if (value) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$re(/^url\(/)) { - return; - } - - value = this.quoted() || this.variable() || - $re(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expectChar(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $re(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var curly, index = i; - - if (input.charAt(i) === '@' && (curly = $re(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $re(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) { - return; - } - - value = $re(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/); - if (value) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - ud = $re(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/); - if (ud) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '`') { return; } - if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) { - error("You are using JavaScript, which has been disabled."); - } - - if (e) { $char('~'); } - - str = $re(/^`([^`]*)`/); - if (str) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*:/))) { return name[1]; } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList, extend; - - if (!(isRule ? $re(/^&:extend\(/) : $re(/^:extend\(/))) { return; } - - do { - option = null; - elements = null; - while (! (option = $re(/^(all)(?=\s*(\)|,))/))) { - e = this.element(); - if (!e) { break; } - if (elements) { elements.push(e); } else { elements = [ e ]; } - } - - option = option && option[1]; - - extend = new(tree.Extend)(new(tree.Selector)(elements), option, index); - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - - } while($char(",")); - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var s = input.charAt(i), important = false, index = i, elemIndex, - elements, elem, e, c, args; - - if (s !== '.' && s !== '#') { return; } - - save(); // stop us absorbing part of an invalid selector - - while (true) { - elemIndex = i; - e = $re(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/); - if (!e) { - break; - } - elem = new(tree.Element)(c, e, elemIndex, env.currentFileInfo); - if (elements) { elements.push(elem); } else { elements = [ elem ]; } - c = $char('>'); - } - if ($char('(')) { - args = this.args(true).args; - expectChar(')'); - } - - if (parsers.important()) { - important = true; - } - - if (elements && ($char(';') || peekChar('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - - restore(); - }, - args: function (isCall) { - var parsers = parser.parsers, entities = parsers.entities, - returner = { args:null, variadic: false }, - expressions = [], argsSemiColon = [], argsComma = [], - isSemiColonSeperated, expressionContainsNamed, name, nameLoop, value, arg; - - while (true) { - if (isCall) { - arg = parsers.expression(); - } else { - parsers.comments(); - if (input.charAt(i) === '.' && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = entities.variable() || entities.literal() || entities.keyword(); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value.length == 1) { - val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($char(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(parsers.expression); - nameLoop = (name = val.name); - } else if (!isCall && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($char(',')) { - continue; - } - - if ($char(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) { - return; - } - - save(); - - match = $re(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/); - if (match) { - name = match[1]; - - var argInfo = this.args(false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$char(')')) { - furthest = i; - restore(); - } - - parsers.comments(); - - if ($re(/^when/)) { // Guard - cond = expect(parsers.conditions, 'expected condition'); - } - - ruleset = parsers.block(); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - var entities = this.entities; - - return entities.literal() || entities.variable() || entities.url() || - entities.call() || entities.keyword() || entities.javascript() || - this.comment(); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $char(';') || peekChar('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $re(/^\(opacity=/i)) { return; } - value = $re(/^\d+/) || this.entities.variable(); - if (value) { - expectChar(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, c, v, index = i; - - c = this.combinator(); - - e = $re(/^(?:\d+\.\d+|\d+)%/) || $re(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $char('*') || $char('&') || this.attribute() || $re(/^\([^()@]+\)/) || $re(/^[\.#](?=@)/) || - this.entities.variableCurly(); - - if (! e) { - if ($char('(')) { - if ((v = this.selector()) && $char(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, index, env.currentFileInfo); } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|' || c === '^') { - i++; - if (input.charAt(i) === '^') { - c = '^^'; - i++; - } - while (isWhitespace(input, i)) { i++; } - return new(tree.Combinator)(c); - } else if (isWhitespace(input, i - 1)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - // - // A CSS selector (see selector below) - // with less extensions e.g. the ability to extend and guard - // - lessSelector: function () { - return this.selector(true); - }, - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function (isLess) { - var index = i, $re = _$re, elements, extendList, c, e, extend, when, condition; - - while ((isLess && (extend = this.extend())) || (isLess && (when = $re(/^when/))) || (e = this.element())) { - if (when) { - condition = expect(this.conditions, 'expected condition'); - } else if (condition) { - error("CSS guard can only be used at the end of selector"); - } else if (extend) { - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - } else { - if (extendList) { error("Extend can only be used at the end of selector"); } - c = input.charAt(i); - if (elements) { elements.push(e); } else { elements = [ e ]; } - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { - break; - } - } - - if (elements) { return new(tree.Selector)(elements, extendList, condition, index, env.currentFileInfo); } - if (extendList) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - if (! $char('[')) { return; } - - var entities = this.entities, - key, val, op; - - if (!(key = entities.variableCurly())) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - op = $re(/^[|~*$^]?=/); - if (op) { - val = entities.quoted() || $re(/^[0-9]+%/) || $re(/^[\w-]+/) || entities.variableCurly(); - } - - expectChar(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($char('{') && (content = this.primary()) && $char('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors, s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - while (true) { - s = this.lessSelector(); - if (!s) { - break; - } - if (selectors) { selectors.push(s); } else { selectors = [ s ]; } - this.comments(); - if (s.condition && selectors.length > 1) { - error("Guards are only currently allowed on a single selector."); - } - if (! $char(',')) { break; } - if (s.condition) { - error("Guards are only currently allowed on a single selector."); - } - this.comments(); - } - - if (selectors && (rules = this.block())) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) { - ruleset.debugInfo = debugInfo; - } - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, c = input.charAt(i), important, merge = false; - save(); - - if (c === '.' || c === '#' || c === '&') { return; } - - name = this.variable() || this.ruleProperty(); - if (name) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || (name.charAt && (name.charAt(0) === '@'))) ? - (this.value() || this.anonymousValue()) : - (this.anonymousValue() || this.value()); - - important = this.important(); - - // a name returned by this.ruleProperty() is always an array of the form: - // ["", "string-1", ..., "string-n", ""] or ["", "string-1", ..., "string-n", "+"] - merge = name.pop && (name.pop() === "+"); - - if (value && this.end()) { - return new (tree.Rule)(name, value, important, merge, memo, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } - }, - anonymousValue: function () { - var match; - match = /^([^@+\/'"*`(;{}-]*);/.exec(current); - if (match) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $re(/^@import?\s+/); - - var options = (dir ? this.importOptions() : null) || {}; - - if (dir && (path = this.entities.quoted() || this.entities.url())) { - features = this.mediaFeatures(); - if ($char(';')) { - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $char('(')) { return null; } - do { - o = this.importOption(); - if (o) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $char(',')) { break; } - } - } while (o); - expectChar(')'); - return options; - }, - - importOption: function() { - var opt = $re(/^(less|css|multiple|once|inline|reference)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var entities = this.entities, nodes = [], e, p; - do { - e = entities.keyword() || entities.variable(); - if (e) { - nodes.push(e); - } else if ($char('(')) { - p = this.property(); - e = this.value(); - if ($char(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null; } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var entities = this.entities, features = [], e; - do { - e = this.mediaFeature(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } else { - e = entities.variable(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - if ($re(/^@media/)) { - features = this.mediaFeatures(); - - rules = this.block(); - if (rules) { - media = new(tree.Media)(rules, features, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - media.debugInfo = debugInfo; - } - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var index = i, name, value, rules, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression, identifier; - - if (input.charAt(i) !== '@') { return; } - - value = this['import']() || this.media(); - if (value) { - return value; - } - - save(); - - name = $re(/^@[a-z-]+/); - - if (!name) { return; } - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@host": - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - identifier = ($re(/^[^{]+/) || '').trim(); - if (identifier) { - name += " " + identifier; - } - } - - if (hasBlock) { - rules = this.block(); - if (rules) { - return new(tree.Directive)(name, rules, index, env.currentFileInfo); - } - } else { - value = hasExpression ? this.expression() : this.entity(); - if (value && $char(';')) { - var directive = new(tree.Directive)(name, value, index, env.currentFileInfo); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = []; - - do { - e = this.expression(); - if (e) { - expressions.push(e); - if (! $char(',')) { break; } - } - } while(e); - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $re(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($char('(')) { - a = this.addition(); - if (a) { - e = new(tree.Expression)([a]); - expectChar(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced; - m = this.operand(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - if (peek(/^\/[*\/]/)) { - break; - } - op = $char('/') || $char('*'); - - if (!op) { break; } - - a = this.operand(); - - if (!a) { break; } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - m = this.multiplication(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - op = $re(/^[-+]\s+/) || (!isSpaced && ($char('+') || $char('-'))); - if (!op) { - break; - } - a = this.multiplication(); - if (!a) { - break; - } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - a = this.condition(); - if (a) { - while (true) { - if (!peek(/^,\s*(not\s*)?\(/) || !$char(',')) { - break; - } - b = this.condition(); - if (!b) { - break; - } - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var entities = this.entities, index = i, negate = false, - a, b, c, op; - - if ($re(/^not/)) { negate = true; } - expectChar('('); - a = this.addition() || entities.keyword() || entities.quoted(); - if (a) { - op = $re(/^(?:>=|<=|=<|[<=>])/); - if (op) { - b = this.addition() || entities.keyword() || entities.quoted(); - if (b) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expectChar(')'); - return $re(/^and/) ? new(tree.Condition)('and', c, this.condition()) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var entities = this.entities, - p = input.charAt(i + 1), negate; - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $char('-'); } - var o = this.sub() || entities.dimension() || - entities.color() || entities.variable() || - entities.call(); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var entities = [], e, delim; - - do { - e = this.addition() || this.entity(); - if (e) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/)) { - delim = $char('/'); - if (delim) { - entities.push(new(tree.Anonymous)(delim)); - } - } - } - } while (e); - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name = $re(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/); - if (name) { - return name[1]; - } - }, - ruleProperty: function () { - var c = current, name = [], index = [], length = 0; - - function match(re) { - var a = re.exec(c); - if (a) { - index.push(i + length); - length += a[0].length; - c = c.slice(a[1].length); - return name.push(a[1]); - } - } - - match(/^(\*?)/); - while (match(/^((?:[\w-]+)|(?:@\{[\w-]+\}))/)); // ! - if ((name.length > 1) && match(/^\s*(\+?)\s*:/)) { - // at last, we have the complete match now. move forward, - // convert @{var}s to tree.Variable(s) and return: - skipWhitespace(length); - for (var k in name) { - if (name[k].charAt(0) === '@') { - name[k] = new tree.Variable('@' + name[k].slice(2, -1), - index[k], env.currentFileInfo); - } - } - return name; - } - } - } - }; - return parser; -}; -less.Parser.serializeVars = function(vars) { - var s = ''; - - for (var name in vars) { - if (Object.hasOwnProperty.call(vars, name)) { - var value = vars[name]; - s += ((name[0] === '@') ? '' : '@') + name +': '+ value + - ((('' + value).slice(-1) === ';') ? '' : ';'); - } - } - - return s; -}; -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 255); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; } - else if (h * 2 < 1) { return m2; } - else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; } - else { return m1; } - } - - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - // filter: saturate(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if (color.luma() < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - /*jshint loopfunc:true */ - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - if(!(val instanceof tree.Dimension)) { - throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") }; - } - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return _math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _minmax: function (isMin, args) { - args = Array.prototype.slice.call(args); - switch(args.length) { - case 0: throw { type: "Argument", message: "one or more arguments required" }; - case 1: return args[0]; - } - var i, j, current, currentUnified, referenceUnified, unit, - order = [], // elems only contains original argument values. - values = {}; // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - for (i = 0; i < args.length; i++) { - current = args[i]; - if (!(current instanceof tree.Dimension)) { - order.push(current); - continue; - } - currentUnified = current.unify(); - unit = currentUnified.unit.toString(); - j = values[unit]; - if (j === undefined) { - values[unit] = order.length; - order.push(current); - continue; - } - referenceUnified = order[j].unify(); - if ( isMin && currentUnified.value < referenceUnified.value || - !isMin && currentUnified.value > referenceUnified.value) { - order[j] = current; - } - } - if (order.length == 1) { - return order[0]; - } - args = order.map(function (a) { return a.toCSS(this.env); }) - .join(this.env.compress ? "," : ", "); - return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")"); - }, - min: function () { - return this._minmax(true, arguments); - }, - max: function () { - return this._minmax(false, arguments); - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - var colorCandidate = n.value, - returnColor; - returnColor = tree.Color.fromKeyword(colorCandidate); - if (returnColor) { - return returnColor; - } - if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) { - return new(tree.Color)(colorCandidate.slice(1)); - } - throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" }; - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - return Array.isArray(values.value) - ? values.value[index] : Array(values)[index]; - }, - length: function(values) { - var n = Array.isArray(values.value) ? values.value.length : 1; - return new tree.Dimension(n); - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require("fs"), - path = require("path"), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) { mimetype += ';base64'; } - } - else { - useBase64 = /;base64$/.test(mimetype); - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "\"data:" + mimetype + ',' + buf + "\""; - return new(tree.URL)(new(tree.Anonymous)(uri)); - }, - - "svg-gradient": function(direction) { - - function throwArgumentDescriptor() { - throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" }; - } - - if (arguments.length < 3) { - throwArgumentDescriptor(); - } - var stops = Array.prototype.slice.call(arguments, 1), - gradientDirectionSvg, - gradientType = "linear", - rectangleDimension = 'x="0" y="0" width="1" height="1"', - useBase64 = true, - renderEnv = {compress: false}, - returner, - directionValue = direction.toCSS(renderEnv), - i, color, position, positionValue, alpha; - - switch (directionValue) { - case "to bottom": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - gradientType = "radial"; - gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" }; - } - returner = '' + - '' + - '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>'; - - for (i = 0; i < stops.length; i+= 1) { - if (stops[i].value) { - color = stops[i].value[0]; - position = stops[i].value[1]; - } else { - color = stops[i]; - position = undefined; - } - - if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) { - throwArgumentDescriptor(); - } - positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%"; - alpha = color.alpha; - returner += ''; - } - returner += '' + - ''; - - if (useBase64) { - // only works in node, needs interface to what is supported in environment - try { - returner = new Buffer(returner).toString('base64'); - } catch(e) { - useBase64 = false; - } - } - - returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'"; - return new(tree.URL)(new(tree.Anonymous)(returner)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -// Math - -var mathFunctions = { - // name, unit - ceil: null, - floor: null, - sqrt: null, - abs: null, - tan: "", - sin: "", - cos: "", - atan: "rad", - asin: "rad", - acos: "rad" -}; - -function _math(fn, unit, n) { - if (!(n instanceof tree.Dimension)) { - throw { type: "Argument", message: "argument must be a number" }; - } - if (unit == null) { - unit = n.unit; - } else { - n = n.unify(); - } - return new(tree.Dimension)(fn(parseFloat(n.value)), unit); -} - -// ~ End of Math - -// Color Blending -// ref: http://www.w3.org/TR/compositing-1 - -function colorBlend(mode, color1, color2) { - var ab = color1.alpha, cb, // backdrop - as = color2.alpha, cs, // source - ar, cr, r = []; // result - - ar = as + ab * (1 - as); - for (var i = 0; i < 3; i++) { - cb = color1.rgb[i] / 255; - cs = color2.rgb[i] / 255; - cr = mode(cb, cs); - if (ar) { - cr = (as * cs + ab * (cb - - as * (cb + cs - cr))) / ar; - } - r[i] = cr * 255; - } - - return new(tree.Color)(r, ar); -} - -var colorBlendMode = { - multiply: function(cb, cs) { - return cb * cs; - }, - screen: function(cb, cs) { - return cb + cs - cb * cs; - }, - overlay: function(cb, cs) { - cb *= 2; - return (cb <= 1) - ? colorBlendMode.multiply(cb, cs) - : colorBlendMode.screen(cb - 1, cs); - }, - softlight: function(cb, cs) { - var d = 1, e = cb; - if (cs > 0.5) { - e = 1; - d = (cb > 0.25) ? Math.sqrt(cb) - : ((16 * cb - 12) * cb + 4) * cb; - } - return cb - (1 - 2 * cs) * e * (d - cb); - }, - hardlight: function(cb, cs) { - return colorBlendMode.overlay(cs, cb); - }, - difference: function(cb, cs) { - return Math.abs(cb - cs); - }, - exclusion: function(cb, cs) { - return cb + cs - 2 * cb * cs; - }, - - // non-w3c functions: - average: function(cb, cs) { - return (cb + cs) / 2; - }, - negation: function(cb, cs) { - return 1 - Math.abs(cb + cs - 1); - } -}; - -// ~ End of Color Blending - -tree.defaultFunc = { - eval: function () { - var v = this.value_, e = this.error_; - if (e) { - throw e; - } - if (v != null) { - return v ? tree.True : tree.False; - } - }, - value: function (v) { - this.value_ = v; - }, - error: function (e) { - this.error_ = e; - }, - reset: function () { - this.value_ = this.error_ = null; - } -}; - -function initFunctions() { - var f, tf = tree.functions; - - // math - for (f in mathFunctions) { - if (mathFunctions.hasOwnProperty(f)) { - tf[f] = _math.bind(null, Math[f], mathFunctions[f]); - } - } - - // color blending - for (f in colorBlendMode) { - if (colorBlendMode.hasOwnProperty(f)) { - tf[f] = colorBlend.bind(null, colorBlendMode[f]); - } - } - - // default - f = tree.defaultFunc; - tf["default"] = f.eval.bind(f); - -} initFunctions(); - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); - -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); - -(function (tree) { - -tree.debugInfo = function(env, ctx, lineSeperator) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:/\\])/g, function (a) { - if (a == '\\') { - a = '\/'; - } - return '\\' + a; - }) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - r = fun.call(obj, obj[i]); - if (r) { return r; } - } - return null; -}; - -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false); }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -tree.toCSS = function (env) { - var strs = []; - this.genCSS(env, { - add: function(chunk, fileInfo, index) { - strs.push(chunk); - }, - isEmpty: function () { - return strs.length === 0; - } - }); - return strs.join(''); -}; - -tree.outputRuleset = function (env, output, rules) { - var ruleCnt = rules.length, i; - env.tabLevel = (env.tabLevel | 0) + 1; - - // Compressed - if (env.compress) { - output.add('{'); - for (i = 0; i < ruleCnt; i++) { - rules[i].genCSS(env, output); - } - output.add('}'); - env.tabLevel--; - return; - } - - // Non-compressed - var tabSetStr = '\n' + Array(env.tabLevel).join(" "), tabRuleStr = tabSetStr + " "; - if (!ruleCnt) { - output.add(" {" + tabSetStr + '}'); - } else { - output.add(" {" + tabRuleStr); - rules[0].genCSS(env, output); - for (i = 1; i < ruleCnt; i++) { - output.add(tabRuleStr); - rules[i].genCSS(env, output); - } - output.add(tabSetStr + '}'); - } - - env.tabLevel--; -}; - -})(require('./tree')); - -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } - return this; - }, - genCSS: function (env, output) { - output.add("alpha(opacity="); - - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - - output.add(")"); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Anonymous = function (string, index, currentFileInfo, mapLines) { - this.value = string.value || string; - this.index = index; - this.mapLines = mapLines; - this.currentFileInfo = currentFileInfo; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - eval: function () { - return new tree.Anonymous(this.value, this.index, this.currentFileInfo, this.mapLines); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - }, - genCSS: function (env, output) { - output.add(this.value, this.currentFileInfo, this.index, this.mapLines); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - }, - genCSS: function (env, output) { - output.add(this.key + '='); - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - if (this.args) { - this.args = visitor.visitArray(this.args); - } - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - return new tree.Call(this.name, args, this.index, this.currentFileInfo); - }, - - genCSS: function (env, output) { - output.add(this.name + "(", this.currentFileInfo, this.index); - - for(var i = 0; i < this.args.length; i++) { - this.args[i].genCSS(env, output); - if (i + 1 < this.args.length) { - output.add(", "); - } - } - - output.add(")"); - }, - - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; - -var transparentKeyword = "transparent"; - -tree.Color.prototype = { - type: "Color", - eval: function () { return this; }, - luma: function () { return (0.2126 * this.rgb[0] / 255) + (0.7152 * this.rgb[1] / 255) + (0.0722 * this.rgb[2] / 255); }, - - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress; - - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - if (this.alpha < 1) { - if (this.alpha === 0 && this.isTransparentKeyword) { - return transparentKeyword; - } - return "rgba(" + this.rgb.map(function (c) { - return clamp(Math.round(c), 255); - }).concat(clamp(this.alpha, 1)) - .join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.toRGB(); - - if (compress) { - var splitcolor = color.split(''); - - // Convert color to short format - if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) { - color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5]; - } - } - - return color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var rgb = []; - var alpha = this.alpha * (1 - other.alpha) + other.alpha; - for (var c = 0; c < 3; c++) { - rgb[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(rgb, alpha); - }, - - toRGB: function () { - return toHex(this.rgb); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - return toHex([this.alpha * 255].concat(this.rgb)); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - -tree.Color.fromKeyword = function(keyword) { - if (tree.colors.hasOwnProperty(keyword)) { - // detect named color - return new(tree.Color)(tree.colors[keyword].slice(1)); - } - if (keyword === transparentKeyword) { - var transparent = new(tree.Color)([0, 0, 0], 0); - transparent.isTransparentKeyword = true; - return transparent; - } -}; - -function toHex(v) { - return '#' + v.map(function (c) { - c = clamp(Math.round(c), 255); - return (c < 16 ? '0' : '') + c.toString(16); - }).join(''); -} - -function clamp(v, max) { - return Math.min(Math.max(v, 0), max); -} - -})(require('../tree')); - -(function (tree) { - -tree.Comment = function (value, silent, index, currentFileInfo) { - this.value = value; - this.silent = !!silent; - this.currentFileInfo = currentFileInfo; -}; -tree.Comment.prototype = { - type: "Comment", - genCSS: function (env, output) { - if (this.debugInfo) { - output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index); - } - output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n - }, - toCSS: tree.toCSS, - isSilent: function(env) { - var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced), - isCompressed = env.compress && !this.value.match(/^\/\*!/); - return this.silent || isReference || isCompressed; - }, - eval: function () { return this; }, - markReferenced: function () { - this.isReferenced = true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<' || op === '<='; - case 0: return op === '=' || op === '>=' || op === '=<' || op === '<='; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); - -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - genCSS: function (env, output) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = this.value, - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && this.unit.isLength()) { - output.add(strValue); - return; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - output.add(strValue); - this.unit.genCSS(env, output); - }, - toCSS: tree.toCSS, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - /*jshint noempty:false */ - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a = this.unify(), b = other.unify(), - aValue = a.value, bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - if (!b.unit.isEmpty() && a.unit.compare(b.unit) !== 0) { - return -1; - } - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'm', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, targetUnit, derivedConversions = {}, applyUnit; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - applyUnit = function (atomicUnit, denominator) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(applyUnit); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - genCSS: function (env, output) { - if (this.numerator.length >= 1) { - output.add(this.numerator[0]); - } else - if (this.denominator.length >= 1) { - output.add(this.denominator[0]); - } else - if ((!env || !env.strictUnits) && this.backupUnit) { - output.add(this.backupUnit); - } - }, - toCSS: tree.toCSS, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isLength: function () { - return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/)); - }, - - isEmpty: function () { - return this.numerator.length === 0 && this.denominator.length === 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length === 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, result = {}, mapUnit; - - mapUnit = function (atomicUnit) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }; - - for (var groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(mapUnit); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Directive = function (name, value, index, currentFileInfo) { - this.name = name; - - if (Array.isArray(value)) { - this.rules = [new(tree.Ruleset)(null, value)]; - this.rules[0].allowImports = true; - } else { - this.value = value; - } - this.index = index; - this.currentFileInfo = currentFileInfo; - -}; -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - if (this.value) { - this.value = visitor.visit(this.value); - } - }, - genCSS: function (env, output) { - output.add(this.name, this.currentFileInfo, this.index); - if (this.rules) { - tree.outputRuleset(env, output, this.rules); - } else { - output.add(' '); - this.value.genCSS(env, output); - output.add(';'); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var evaldDirective = this; - if (this.rules) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name, null, this.index, this.currentFileInfo); - evaldDirective.rules = [this.rules[0].eval(env)]; - evaldDirective.rules[0].root = true; - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - markReferenced: function () { - var i, rules; - this.isReferenced = true; - if (this.rules) { - rules = this.rules[0].rules; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Element = function (combinator, value, index, currentFileInfo) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - var value = this.value; - this.combinator = visitor.visit(this.combinator); - if (typeof value === "object") { - this.value = visitor.visit(value); - } - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index, - this.currentFileInfo); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env), this.currentFileInfo, this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value === '' && this.combinator.value.charAt(0) === '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - _outputMap: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : ' + ', - '~' : ' ~ ', - '>' : ' > ', - '|' : '|', - '^' : ' ^ ', - '^^' : ' ^^ ' - }, - _outputMapCompressed: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : '+', - '~' : '~', - '>' : '>', - '|' : '|', - '^' : '^', - '^^' : '^^' - }, - genCSS: function (env, output) { - output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - genCSS: function (env, output) { - for(var i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i + 1 < this.value.length) { - output.add(" "); - } - } - }, - toCSS: tree.toCSS, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - this.object_id = tree.Extend.next_id++; - this.parent_ids = [this.object_id]; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; -tree.Extend.next_id = 0; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i, - selectorElements; - - for(i = 0; i < selectors.length; i++) { - selectorElements = selectors[i].elements; - // duplicate the logic in genCSS function inside the selector node. - // future TODO - move both logics into the selector joiner visitor - if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") { - selectorElements[0].combinator.value = ' '; - } - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); - -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined || this.options.inline) { - this.css = !this.options.less || this.options.inline; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - this.path = visitor.visit(this.path); - if (!this.options.inline && this.root) { - this.root = visitor.visit(this.root); - } - }, - genCSS: function (env, output) { - if (this.css) { - output.add("@import ", this.currentFileInfo, this.index); - this.path.genCSS(env, output); - if (this.features) { - output.add(" "); - this.features.genCSS(env, output); - } - output.add(';'); - } - }, - toCSS: tree.toCSS, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - - if (!(path instanceof tree.URL)) { - if (rootpath) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath + pathValue; - } - } - path.value = env.normalizePath(path.value); - } - - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { return []; } - - if (this.options.inline) { - //todo needs to reference css file not import - var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true); - return this.features ? new(tree.Media)([contents], this.features.value) : [contents]; - } else if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" , - index: this.index }; - } - - var variables = env.frames[0].variables(); - for (var k in variables) { - if (variables.hasOwnProperty(k)) { - /*jshint loopfunc:true */ - context[k.slice(1)] = { - value: variables[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'number') { - return new(tree.Dimension)(result); - } else if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Keyword = function (value) { this.value = value; }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); - -(function (tree) { - -tree.Media = function (value, features, index, currentFileInfo) { - this.index = index; - this.currentFileInfo = currentFileInfo; - - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.rules = [new(tree.Ruleset)(selectors, value)]; - this.rules[0].allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - }, - genCSS: function (env, output) { - output.add('@media ', this.currentFileInfo, this.index); - this.features.genCSS(env, output); - tree.outputRuleset(env, output, this.rules); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)(null, [], this.index, this.currentFileInfo); - if(this.debugInfo) { - this.rules[0].debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.rules[0]); - media.rules = [this.rules[0].eval(env)]; - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env); - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', this.index, this.currentFileInfo); - return [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)]; - }, - markReferenced: function () { - var i, rules = this.rules[0].rules; - this.isReferenced = true; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])]; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = (args && args.length) ? args : null; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - if (this.selector) { - this.selector = visitor.visit(this.selector); - } - if (this.arguments) { - this.arguments = visitor.visitArray(this.arguments); - } - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule; - var candidates = [], candidate, conditionResult = [], defaultFunc = tree.defaultFunc, defaultUsed = false; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - - // To make `default()` function independent of definition order we have two "subpasses" here. - // At first we evaluate each guard *twice* (with `default() == true` and `default() == false`), - // and build candidate list with corresponding flags. Then, when we know all possible matches, - // we make a final decision. - - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - - if (mixin.matchArgs(args, env)) { - candidate = {mixin: mixin}; - - if (mixin.matchCondition) { - for (f = 0; f < 2; f++) { - defaultFunc.value(f); - conditionResult[f] = mixin.matchCondition(args, env); - } - if (conditionResult[0] || conditionResult[1]) { - if (conditionResult[0] != conditionResult[1]) { - if (defaultUsed) { - // todo: ideally, it would make sense to also print the candidate - // mixin definitions that cause the conflict (current one and the - // mixin that set defaultUsed flag). But is there any easy method - // to get their filename/line/index info here? - throw { type: 'Runtime', - message: 'Ambiguous use of `default()` found when matching for `' - + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } - - defaultUsed = true; - candidate.matchIfDefault = true; - candidate.matchIfDefaultValue = conditionResult[1]; - } - - candidates.push(candidate); - } - } - else { - candidates.push(candidate); - } - - match = true; - } - } - - defaultFunc.reset(); - - for (m = 0; m < candidates.length; m++) { - candidate = candidates[m]; - if (!candidate.matchIfDefault || (candidate.matchIfDefaultValue == (candidates.length == 1))) { - try { - mixin = candidate.mixin; - if (!(mixin instanceof tree.mixin.Definition)) { - mixin = new tree.mixin.Definition("", [], mixin.rules, null, false); - mixin.originalRuleset = mixins[m].originalRuleset || mixins[m]; - } - //if (this.important) { - // isImportant = env.isImportant; - // env.isImportant = true; - //} - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - //if (this.important) { - // env.isImportant = isImportant; - //} - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - } - - if (match) { - if (!this.currentFileInfo || !this.currentFileInfo.reference) { - for (i = 0; i < rules.length; i++) { - rule = rules[i]; - if (rule.markReferenced) { - rule.markReferenced(); - } - } - } - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - }, - format: function (args) { - return this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")"; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1; } - else { return count; } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - if (this.params && this.params.length) { - this.params = visitor.visitArray(this.params); - } - this.rules = visitor.visitArray(this.rules); - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - /*jshint boss:true */ - var frame = new(tree.Ruleset)(null, null), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.prependRule(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) { continue; } - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.prependRule(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.prependRule(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - rules, ruleset; - - frame.prependRule(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules); - ruleset.originalRuleset = this; - ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames))); - if (important) { - ruleset = this.parent.makeImportant.apply(ruleset); - } - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] // the parameter variables - .concat(this.frames) // the parent namespace/mixin frames - .concat(env.frames)))) { // the current environment frames - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (! this.variadic) { - if (argsLength < this.required) { return false; } - if (argsLength > this.params.length) { return false; } - } else { - if (argsLength < (this.required - 1)) { return false; } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('-'); - this.value.genCSS(env, output); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env); - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - a = a.toColor(); - } - if (b instanceof tree.Dimension && a instanceof tree.Color) { - b = b.toColor(); - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - genCSS: function (env, output) { - this.operands[0].genCSS(env, output); - if (this.isSpaced) { - output.add(" "); - } - output.add(this.op); - if (this.isSpaced) { - output.add(" "); - } - this.operands[1].genCSS(env, output); - }, - toCSS: tree.toCSS -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('('); - this.value.genCSS(env, output); - output.add(')'); - }, - toCSS: tree.toCSS, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - genCSS: function (env, output) { - if (!this.escaped) { - output.add(this.quote, this.currentFileInfo, this.index); - } - output.add(this.value); - if (!this.escaped) { - output.add(this.quote); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.merge = merge; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - this.variable = name.charAt && (name.charAt(0) === '@'); -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index); - try { - this.value.genCSS(env, output); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index); - }, - toCSS: tree.toCSS, - eval: function (env) { - var strictMathBypass = false; - var name = this.name.map ? - this.name.map( function(v) { - return v.eval ? v.eval(env).value : v; - }).join('') : this.name; - if (name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - return new(tree.Rule)(name, - this.value.eval(env), - this.important, - this.merge, - this.index, this.currentFileInfo, this.inline); - } - catch(e) { - if (e.index === undefined) { - e.index = this.index; - } - throw e; - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.merge, - this.index, this.currentFileInfo, this.inline); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - if (this.paths) { - visitor.visitArray(this.paths, true); - } else if (this.selectors) { - this.selectors = visitor.visitArray(this.selectors); - } - if (this.rules && this.rules.length) { - this.rules = visitor.visitArray(this.rules); - } - }, - eval: function (env) { - var thisSelectors = this.selectors, selectors, - selCnt, i, defaultFunc = tree.defaultFunc; - if (thisSelectors && (selCnt = thisSelectors.length)) { - selectors = []; - defaultFunc.error({ - type: "Syntax", - message: "it is currently only allowed in parametric mixin guards," - }); - for (i = 0; i < selCnt; i++) { - selectors.push(thisSelectors[i].eval(env)); - } - defaultFunc.reset(); - } - - var rules = this.rules ? this.rules.slice(0) : null, - ruleset = new(tree.Ruleset)(selectors, rules, this.strictImports), - rule; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - var envFrames = env.frames; - envFrames.unshift(ruleset); - - // currrent selectors - var envSelectors = env.selectors; - if (!envSelectors) { - env.selectors = envSelectors = []; - } - envSelectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - var rsRules = ruleset.rules, rsRuleCnt = rsRules ? rsRules.length : 0; - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Definition) { - rsRules[i].frames = envFrames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Call) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (i = 0; i < rsRuleCnt; i++) { - rule = rsRules[i]; - if (! (rule instanceof tree.mixin.Definition)) { - rsRules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - envFrames.shift(); - envSelectors.shift(); - - if (env.mediaBlocks) { - for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var rules = this.rules, i, importRules; - if (!rules) { return; } - - for (i = 0; i < rules.length; i++) { - if (rules[i] instanceof tree.Import) { - importRules = rules[i].eval(env); - if (importRules && importRules.length) { - rules.splice.apply(rules, [i, 1].concat(importRules)); - i+= importRules.length-1; - } else { - rules.splice(i, 1, importRules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - matchCondition: function (args, env) { - var lastSelector = this.selectors[this.selectors.length-1]; - if (lastSelector.condition && - !lastSelector.condition.eval( - new(tree.evalEnv)(env, - env.frames))) { - return false; - } - return true; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (!this._variables) { - this._variables = !this.rules ? {} : this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - return this._variables; - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (!this.rules) { return null; } - - var _Ruleset = tree.Ruleset, _MixinDefinition = tree.mixin.Definition, - filtRules = [], rules = this.rules, cnt = rules.length, - i, rule; - - for (i = 0; i < cnt; i++) { - rule = rules[i]; - if ((rule instanceof _Ruleset) || (rule instanceof _MixinDefinition)) { - filtRules.push(rule); - } - } - - return filtRules; - }, - prependRule: function (rule) { - var rules = this.rules; - if (rules) { rules.unshift(rule); } else { this.rules = [ rule ]; } - }, - find: function (selector, self) { - self = self || this; - var rules = [], match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key]; } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - match = selector.match(rule.selectors[j]); - if (match) { - if (selector.elements.length > match) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(match)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - this._lookups[key] = rules; - return rules; - }, - genCSS: function (env, output) { - var i, j, - ruleNodes = [], - rulesetNodes = [], - rulesetNodeCnt, - debugInfo, // Line number debugging - rule, - path; - - env.tabLevel = (env.tabLevel || 0); - - if (!this.root) { - env.tabLevel++; - } - - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "), - sep; - - for (i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - if (rule.rules || (rule instanceof tree.Media) || rule instanceof tree.Directive || (this.root && rule instanceof tree.Comment)) { - rulesetNodes.push(rule); - } else { - ruleNodes.push(rule); - } - } - - // If this is the root node, we don't render - // a selector, or {}. - if (!this.root) { - debugInfo = tree.debugInfo(env, this, tabSetStr); - - if (debugInfo) { - output.add(debugInfo); - output.add(tabSetStr); - } - - var paths = this.paths, pathCnt = paths.length, - pathSubCnt; - - sep = env.compress ? ',' : (',\n' + tabSetStr); - - for (i = 0; i < pathCnt; i++) { - path = paths[i]; - if (!(pathSubCnt = path.length)) { continue; } - if (i > 0) { output.add(sep); } - - env.firstSelector = true; - path[0].genCSS(env, output); - - env.firstSelector = false; - for (j = 1; j < pathSubCnt; j++) { - path[j].genCSS(env, output); - } - } - - output.add((env.compress ? '{' : ' {\n') + tabRuleStr); - } - - // Compile rules and rulesets - for (i = 0; i < ruleNodes.length; i++) { - rule = ruleNodes[i]; - - // @page{ directive ends up with root elements inside it, a mix of rules and rulesets - // In this instance we do not know whether it is the last property - if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) { - env.lastRule = true; - } - - if (rule.genCSS) { - rule.genCSS(env, output); - } else if (rule.value) { - output.add(rule.value.toString()); - } - - if (!env.lastRule) { - output.add(env.compress ? '' : ('\n' + tabRuleStr)); - } else { - env.lastRule = false; - } - } - - if (!this.root) { - output.add((env.compress ? '}' : '\n' + tabSetStr + '}')); - env.tabLevel--; - } - - sep = (env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr); - rulesetNodeCnt = rulesetNodes.length; - if (rulesetNodeCnt) { - if (ruleNodes.length && sep) { output.add(sep); } - rulesetNodes[0].genCSS(env, output); - for (i = 1; i < rulesetNodeCnt; i++) { - if (sep) { output.add(sep); } - rulesetNodes[i].genCSS(env, output); - } - } - - if (!output.isEmpty() && !env.compress && this.firstRoot) { - output.add('\n'); - } - }, - - toCSS: tree.toCSS, - - markReferenced: function () { - for (var s = 0; s < this.selectors.length; s++) { - this.selectors[s].markReferenced(); - } - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for (i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for (j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length === 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0, el.index, el.currentFileInfo)); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for (k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = selector.createDerived([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for (i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length === 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for (i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); - -(function (tree) { - -tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) { - this.elements = elements; - this.extendList = extendList; - this.condition = condition; - this.currentFileInfo = currentFileInfo || {}; - this.isReferenced = isReferenced; - if (!condition) { - this.evaldCondition = true; - } -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - if (this.elements) { - this.elements = visitor.visitArray(this.elements); - } - if (this.extendList) { - this.extendList = visitor.visitArray(this.extendList); - } - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - createDerived: function(elements, extendList, evaldCondition) { - evaldCondition = (evaldCondition != null) ? evaldCondition : this.evaldCondition; - var newSelector = new(tree.Selector)(elements, extendList || this.extendList, this.condition, this.index, this.currentFileInfo, this.isReferenced); - newSelector.evaldCondition = evaldCondition; - return newSelector; - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, i; - - oelements = other.elements.map( function(v) { - return v.combinator.value + (v.value.value || v.value); - }).join("").match(/[,&#\.\w-]([\w-]|(\\.))*/g); - // ^ regexp could be more simple but see test/less/css-escapes.less:17, doh! - - if (!oelements) { - return 0; - } - - if (oelements[0] === "&") { - oelements.shift(); - } - - olen = oelements.length; - if (olen === 0 || len < olen) { - return 0; - } else { - for (i = 0; i < olen; i++) { - if (elements[i].value !== oelements[i]) { - return 0; - } - } - } - return olen; // return number of matched elements - }, - eval: function (env) { - var evaldCondition = this.condition && this.condition.eval(env), - elements = this.elements, extendList = this.extendList; - - elements = elements && elements.map(function (e) { return e.eval(env); }); - extendList = extendList && extendList.map(function(extend) { return extend.eval(env); }); - - return this.createDerived(elements, extendList, evaldCondition); - }, - genCSS: function (env, output) { - var i, element; - if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") { - output.add(' ', this.currentFileInfo, this.index); - } - if (!this._css) { - //TODO caching? speed comparison? - for(i = 0; i < this.elements.length; i++) { - element = this.elements[i]; - element.genCSS(env, output); - } - } - }, - toCSS: tree.toCSS, - markReferenced: function () { - this.isReferenced = true; - }, - getIsReferenced: function() { - return !this.currentFileInfo.reference || this.isReferenced; - }, - getIsOutput: function() { - return this.evaldCondition; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - eval: function () { return this; } -}; - -})(require('../tree')); - -(function (tree) { - -tree.URL = function (val, currentFileInfo, isEvald) { - this.value = val; - this.currentFileInfo = currentFileInfo; - this.isEvald = isEvald; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add("url("); - this.value.genCSS(env, output); - output.add(")"); - }, - toCSS: tree.toCSS, - eval: function (ctx) { - var val = this.value.eval(ctx), - rootpath; - - if (!this.isEvald) { - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - val.value = ctx.normalizePath(val.value); - } - - return new(tree.URL)(val, this.currentFileInfo, true); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - genCSS: function (env, output) { - var i; - for(i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i+1 < this.value.length) { - output.add((env && env.compress) ? ',' : ', '); - } - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { - this.name = name; - this.index = index; - this.currentFileInfo = currentFileInfo || {}; -}; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, name = this.name; - - if (name.indexOf('@@') === 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - variable = tree.find(env.frames, function (frame) { - var v = frame.variable(name); - if (v) { - return v.value.eval(env); - } - }); - if (variable) { - this.evaluating = false; - return variable; - } else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); - -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // map - filename to contents of all the files - 'contentsIgnoredChars', // map - filename to lines at the begining of each file to ignore - 'relativeUrls', // option - whether to adjust URL's to be relative - 'rootpath', // option - rootpath to append to URL's - 'strictImports', // option - - 'insecure', // option - whether to allow imports from insecure ssl hosts - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true - 'mime', // browser only - mime type for sheet import - 'useFileCache', // browser only - whether to use the per file session cache - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' - absolute path to the entry file - // 'reference' - whether the file should not be output and only output parts that are referenced - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.contentsIgnoredChars) { this.contentsIgnoredChars = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits', // whether units need to evaluate correctly - 'cleancss', // whether to compress with clean-css - 'sourceMap', // whether to output a source map - 'importMultiple'// whether we are currently importing multiple copies - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - tree.evalEnv.prototype.normalizePath = function( path ) { - var - segments = path.split("/").reverse(), - segment; - - path = []; - while (segments.length !== 0 ) { - segment = segments.pop(); - switch( segment ) { - case ".": - break; - case "..": - if ((path.length === 0) || (path[path.length - 1] === "..")) { - path.push( segment ); - } else { - path.pop(); - } - break; - default: - path.push( segment ); - break; - } - } - - return path.join("/"); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - }; - -})(require('./tree')); - -(function (tree) { - - var _visitArgs = { visitDeeper: true }, - _hasIndexed = false; - - function _noop(node) { - return node; - } - - function indexNodeTypes(parent, ticker) { - // add .typeIndex to tree node types for lookup table - var key, child; - for (key in parent) { - if (parent.hasOwnProperty(key)) { - child = parent[key]; - switch (typeof child) { - case "function": - // ignore bound functions directly on tree which do not have a prototype - // or aren't nodes - if (child.prototype && child.prototype.type) { - child.prototype.typeIndex = ticker++; - } - break; - case "object": - ticker = indexNodeTypes(child, ticker); - break; - } - } - } - return ticker; - } - - tree.visitor = function(implementation) { - this._implementation = implementation; - this._visitFnCache = []; - - if (!_hasIndexed) { - indexNodeTypes(tree, 1); - _hasIndexed = true; - } - }; - - tree.visitor.prototype = { - visit: function(node) { - if (!node) { - return node; - } - - var nodeTypeIndex = node.typeIndex; - if (!nodeTypeIndex) { - return node; - } - - var visitFnCache = this._visitFnCache, - impl = this._implementation, - aryIndx = nodeTypeIndex << 1, - outAryIndex = aryIndx | 1, - func = visitFnCache[aryIndx], - funcOut = visitFnCache[outAryIndex], - visitArgs = _visitArgs, - fnName; - - visitArgs.visitDeeper = true; - - if (!func) { - fnName = "visit" + node.type; - func = impl[fnName] || _noop; - funcOut = impl[fnName + "Out"] || _noop; - visitFnCache[aryIndx] = func; - visitFnCache[outAryIndex] = funcOut; - } - - if (func !== _noop) { - var newNode = func.call(impl, node, visitArgs); - if (impl.isReplacing) { - node = newNode; - } - } - - if (visitArgs.visitDeeper && node && node.accept) { - node.accept(this); - } - - if (funcOut != _noop) { - funcOut.call(impl, node); - } - - return node; - }, - visitArray: function(nodes, nonReplacing) { - if (!nodes) { - return nodes; - } - - var cnt = nodes.length, i; - - // Non-replacing - if (nonReplacing || !this._implementation.isReplacing) { - for (i = 0; i < cnt; i++) { - this.visit(nodes[i]); - } - return nodes; - } - - // Replacing - var out = []; - for (i = 0; i < cnt; i++) { - var evald = this.visit(nodes[i]); - if (!evald.splice) { - out.push(evald); - } else if (evald.length) { - this.flatten(evald, out); - } - } - return out; - }, - flatten: function(arr, out) { - if (!out) { - out = []; - } - - var cnt, i, item, - nestedCnt, j, nestedItem; - - for (i = 0, cnt = arr.length; i < cnt; i++) { - item = arr[i]; - if (!item.splice) { - out.push(item); - continue; - } - - for (j = 0, nestedCnt = item.length; j < nestedCnt; j++) { - nestedItem = item[j]; - if (!nestedItem.splice) { - out.push(nestedItem); - } else if (nestedItem.length) { - this.flatten(nestedItem, out); - } - } - } - - return out; - } - }; - -})(require('./tree')); -(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode, - inlineCSS = importNode.options.inline; - - if (!importNode.css || inlineCSS) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - - if (importNode.options.multiple) { - env.importMultiple = true; - } - - this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, imported, fullPath) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - - if (imported && !env.importMultiple) { importNode.skip = imported; } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - importNode.importedFilename = fullPath; - if (!inlineCSS && !importNode.skip) { - new(tree.importVisitor)(importVisitor._importer, subFinish, env) - .run(root); - return; - } - } - - subFinish(); - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree')); -(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1], - paths = [], selectors; - - this.contexts.push(paths); - - if (! rulesetNode.root) { - selectors = rulesetNode.selectors; - if (selectors) { - selectors = selectors.filter(function(selector) { return selector.getIsOutput(); }); - rulesetNode.selectors = selectors.length ? selectors : (selectors = null); - if (selectors) { rulesetNode.joinSelectors(paths, context, selectors); } - } - if (!selectors) { rulesetNode.rules = null; } - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree')); -(function (tree) { - tree.toCSSVisitor = function(env) { - this._visitor = new tree.visitor(this); - this._env = env; - }; - - tree.toCSSVisitor.prototype = { - isReplacing: true, - run: function (root) { - return this._visitor.visit(root); - }, - - visitRule: function (ruleNode, visitArgs) { - if (ruleNode.variable) { - return []; - } - return ruleNode; - }, - - visitMixinDefinition: function (mixinNode, visitArgs) { - return []; - }, - - visitExtend: function (extendNode, visitArgs) { - return []; - }, - - visitComment: function (commentNode, visitArgs) { - if (commentNode.isSilent(this._env)) { - return []; - } - return commentNode; - }, - - visitMedia: function(mediaNode, visitArgs) { - mediaNode.accept(this._visitor); - visitArgs.visitDeeper = false; - - if (!mediaNode.rules.length) { - return []; - } - return mediaNode; - }, - - visitDirective: function(directiveNode, visitArgs) { - if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) { - return []; - } - if (directiveNode.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (this.charset) { - if (directiveNode.debugInfo) { - var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n"); - comment.debugInfo = directiveNode.debugInfo; - return this._visitor.visit(comment); - } - return []; - } - this.charset = true; - } - return directiveNode; - }, - - checkPropertiesInRoot: function(rules) { - var ruleNode; - for(var i = 0; i < rules.length; i++) { - ruleNode = rules[i]; - if (ruleNode instanceof tree.Rule && !ruleNode.variable) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null}; - } - } - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var rule, rulesets = []; - if (rulesetNode.firstRoot) { - this.checkPropertiesInRoot(rulesetNode.rules); - } - if (! rulesetNode.root) { - if (rulesetNode.paths) { - rulesetNode.paths = rulesetNode.paths - .filter(function(p) { - var i; - if (p[0].elements[0].combinator.value === ' ') { - p[0].elements[0].combinator = new(tree.Combinator)(''); - } - for(i = 0; i < p.length; i++) { - if (p[i].getIsReferenced() && p[i].getIsOutput()) { - return true; - } - } - return false; - }); - } - - // Compile rules and rulesets - var nodeRules = rulesetNode.rules, nodeRuleCnt = nodeRules ? nodeRules.length : 0; - for (var i = 0; i < nodeRuleCnt; ) { - rule = nodeRules[i]; - if (rule && rule.rules) { - // visit because we are moving them out from being a child - rulesets.push(this._visitor.visit(rule)); - nodeRules.splice(i, 1); - nodeRuleCnt--; - continue; - } - i++; - } - // accept the visitor to remove rules and refactor itself - // then we can decide now whether we want it or not - if (nodeRuleCnt > 0) { - rulesetNode.accept(this._visitor); - } else { - rulesetNode.rules = null; - } - visitArgs.visitDeeper = false; - - nodeRules = rulesetNode.rules; - if (nodeRules) { - this._mergeRules(nodeRules); - nodeRules = rulesetNode.rules; - } - if (nodeRules) { - this._removeDuplicateRules(nodeRules); - nodeRules = rulesetNode.rules; - } - - // now decide whether we keep the ruleset - if (nodeRules && nodeRules.length > 0 && rulesetNode.paths.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } else { - rulesetNode.accept(this._visitor); - visitArgs.visitDeeper = false; - if (rulesetNode.firstRoot || (rulesetNode.rules && rulesetNode.rules.length > 0)) { - rulesets.splice(0, 0, rulesetNode); - } - } - if (rulesets.length === 1) { - return rulesets[0]; - } - return rulesets; - }, - - _removeDuplicateRules: function(rules) { - if (!rules) { return; } - - // remove duplicates - var ruleCache = {}, - ruleList, rule, i; - - for(i = rules.length - 1; i >= 0 ; i--) { - rule = rules[i]; - if (rule instanceof tree.Rule) { - if (!ruleCache[rule.name]) { - ruleCache[rule.name] = rule; - } else { - ruleList = ruleCache[rule.name]; - if (ruleList instanceof tree.Rule) { - ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)]; - } - var ruleCSS = rule.toCSS(this._env); - if (ruleList.indexOf(ruleCSS) !== -1) { - rules.splice(i, 1); - } else { - ruleList.push(ruleCSS); - } - } - } - } - }, - - _mergeRules: function (rules) { - if (!rules) { return; } - - var groups = {}, - parts, - rule, - key; - - for (var i = 0; i < rules.length; i++) { - rule = rules[i]; - - if ((rule instanceof tree.Rule) && rule.merge) { - key = [rule.name, - rule.important ? "!" : ""].join(","); - - if (!groups[key]) { - groups[key] = []; - } else { - rules.splice(i--, 1); - } - - groups[key].push(rule); - } - } - - Object.keys(groups).map(function (k) { - parts = groups[k]; - - if (parts.length > 1) { - rule = parts[0]; - - rule.value = new (tree.Value)(parts.map(function (p) { - return p.value; - })); - } - }); - } - }; - -})(require('./tree')); -(function (tree) { - /*jshint loopfunc:true */ - - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - var rules = rulesetNode.rules, ruleCnt = rules ? rules.length : 0; - for(i = 0; i < ruleCnt; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rules[i]); - rulesetNode.extendOnEveryPath = true; - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - var paths = rulesetNode.paths; - for(i = 0; i < paths.length; i++) { - var selectorPath = paths[i], - selector = selectorPath[selectorPath.length - 1], - selExtendList = selector.extendList; - - extendList = selExtendList ? selExtendList.slice(0).concat(allSelectorsExtendList) - : allSelectorsExtendList; - - if (extendList) { - extendList = extendList.map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - } - - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if( extend.parent_ids.indexOf( targetExtend.object_id ) >= 0 ){ continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parent_ids = newExtend.parent_ids.concat(targetExtend.parent_ids, extend.parent_ids); - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (rulesetNode.extendOnEveryPath) { continue; } - var extendList = selectorPath[selectorPath.length-1].extendList; - if (extendList && extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator === '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - elementValue1 = elementValue1.value; - elementValue2 = elementValue2.value; - if (elementValue1 instanceof tree.Selector) { - if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) { - return false; - } - for(var i = 0; i currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - newElements = selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)); - - if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) { - path[path.length - 1].elements = - path[path.length - 1].elements.concat(newElements); - } else { - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - newElements - )); - } - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.sourceMapOutput = function (options) { - this._css = []; - this._rootNode = options.rootNode; - this._writeSourceMap = options.writeSourceMap; - this._contentsMap = options.contentsMap; - this._contentsIgnoredCharsMap = options.contentsIgnoredCharsMap; - this._sourceMapFilename = options.sourceMapFilename; - this._outputFilename = options.outputFilename; - this._sourceMapURL = options.sourceMapURL; - if (options.sourceMapBasepath) { - this._sourceMapBasepath = options.sourceMapBasepath.replace(/\\/g, '/'); - } - this._sourceMapRootpath = options.sourceMapRootpath; - this._outputSourceFiles = options.outputSourceFiles; - this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator; - - if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') { - this._sourceMapRootpath += '/'; - } - - this._lineNumber = 0; - this._column = 0; - }; - - tree.sourceMapOutput.prototype.normalizeFilename = function(filename) { - filename = filename.replace(/\\/g, '/'); - - if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) { - filename = filename.substring(this._sourceMapBasepath.length); - if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') { - filename = filename.substring(1); - } - } - return (this._sourceMapRootpath || "") + filename; - }; - - tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) { - - //ignore adding empty strings - if (!chunk) { - return; - } - - var lines, - sourceLines, - columns, - sourceColumns, - i; - - if (fileInfo) { - var inputSource = this._contentsMap[fileInfo.filename]; - - // remove vars/banner added to the top of the file - if (this._contentsIgnoredCharsMap[fileInfo.filename]) { - // adjust the index - index -= this._contentsIgnoredCharsMap[fileInfo.filename]; - if (index < 0) { index = 0; } - // adjust the source - inputSource = inputSource.slice(this._contentsIgnoredCharsMap[fileInfo.filename]); - } - inputSource = inputSource.substring(0, index); - sourceLines = inputSource.split("\n"); - sourceColumns = sourceLines[sourceLines.length-1]; - } - - lines = chunk.split("\n"); - columns = lines[lines.length-1]; - - if (fileInfo) { - if (!mapLines) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column}, - original: { line: sourceLines.length, column: sourceColumns.length}, - source: this.normalizeFilename(fileInfo.filename)}); - } else { - for(i = 0; i < lines.length; i++) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0}, - original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0}, - source: this.normalizeFilename(fileInfo.filename)}); - } - } - } - - if (lines.length === 1) { - this._column += columns.length; - } else { - this._lineNumber += lines.length - 1; - this._column = columns.length; - } - - this._css.push(chunk); - }; - - tree.sourceMapOutput.prototype.isEmpty = function() { - return this._css.length === 0; - }; - - tree.sourceMapOutput.prototype.toCSS = function(env) { - this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null }); - - if (this._outputSourceFiles) { - for(var filename in this._contentsMap) { - if (this._contentsMap.hasOwnProperty(filename)) - { - var source = this._contentsMap[filename]; - if (this._contentsIgnoredCharsMap[filename]) { - source = source.slice(this._contentsIgnoredCharsMap[filename]); - } - this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), source); - } - } - } - - this._rootNode.genCSS(env, this); - - if (this._css.length > 0) { - var sourceMapURL, - sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); - - if (this._sourceMapURL) { - sourceMapURL = this._sourceMapURL; - } else if (this._sourceMapFilename) { - sourceMapURL = this.normalizeFilename(this._sourceMapFilename); - } - - if (this._writeSourceMap) { - this._writeSourceMap(sourceMapContent); - } else { - sourceMapURL = "data:application/json," + encodeURIComponent(sourceMapContent); - } - - if (sourceMapURL) { - this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */"); - } - } - - return this._css.join(''); - }; - -})(require('./tree')); - -// -// browser.js - client-side engine -// -/*global less, window, document, XMLHttpRequest, location */ - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - (location.port && - location.port.length > 0) || - isFileProtocol ? 'development' - : 'production'); - -var logLevel = { - info: 2, - errors: 1, - none: 0 -}; - -// The amount of logging in the javascript console. -// 2 - Information and errors -// 1 - Errors -// 0 - None -// Defaults to 2 -less.logLevel = typeof(less.logLevel) != 'undefined' ? less.logLevel : logLevel.info; - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - if (less.functions.hasOwnProperty(func)) { - less.tree.functions[func] = less.functions[func]; - } - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -var typePattern = /^text\/(x-)?less$/; -var cache = null; -var fileCache = {}; - -function log(str, level) { - if (less.env == 'development' && typeof(console) !== 'undefined' && less.logLevel >= level) { - console.log('less: ' + str); - } -} - -function extractId(href) { - return href.replace(/^[a-z-]+:\/+?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function errorConsole(e, rootHref) { - var template = '{line} {content}'; - var filename = e.filename || rootHref; - var errors = []; - var content = (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - " in " + filename + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n' + - errors.join('\n'); - } else if (e.stack) { - content += e.stack; - } - log(content, logLevel.errors); -} - -function createCSS(styles, sheet, lastModified) { - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If this has already been inserted into the DOM, we may need to replace it - var oldCss = document.getElementById(id); - var keepOldCss = false; - - // Create a new stylesheet node for insertion or (if necessary) replacement - var css = document.createElement('style'); - css.setAttribute('type', 'text/css'); - if (sheet.media) { - css.setAttribute('media', sheet.media); - } - css.id = id; - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - css.appendChild(document.createTextNode(styles)); - - // If new contents match contents of oldCss, don't replace oldCss - keepOldCss = (oldCss !== null && oldCss.childNodes.length > 0 && css.childNodes.length > 0 && - oldCss.firstChild.nodeValue === css.firstChild.nodeValue); - } - - var head = document.getElementsByTagName('head')[0]; - - // If there is no oldCss, just append; otherwise, only append if we need - // to replace oldCss with an updated stylesheet - if (oldCss === null || keepOldCss === false) { - var nextEl = sheet && sheet.nextSibling || null; - if (nextEl) { - nextEl.parentNode.insertBefore(css, nextEl); - } else { - head.appendChild(css); - } - } - if (oldCss && keepOldCss === false) { - oldCss.parentNode.removeChild(oldCss); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.', logLevel.info); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save', logLevel.errors); - } - } -} - -function errorHTML(e, rootHref) { - var id = 'less-error-message:' + extractId(rootHref || ""); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, errors = []; - var filename = e.filename || rootHref; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - '

    ' + '

    in ' + filenameNoPath + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - '
      ' + errors.join('') + '
    '; - } else if (e.stack) { - content += '
    ' + e.stack.split('\n').slice(1).join('
    '); - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #dd6666;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.line {', - 'color: #ff0000;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); - - if (less.env == 'development') { - timer = setInterval(function () { - if (document.body) { - if (document.getElementById(id)) { - document.body.replaceChild(elem, document.getElementById(id)); - } else { - document.body.insertBefore(elem, document.body.firstChild); - } - clearInterval(timer); - } - }, 10); - } -} - -function error(e, rootHref) { - if (!less.errorReporting || less.errorReporting === "html") { - errorHTML(e, rootHref); - } else if (less.errorReporting === "console") { - errorConsole(e, rootHref); - } else if (typeof less.errorReporting === 'function') { - less.errorReporting("add", e, rootHref); - } -} - -function removeErrorHTML(path) { - var node = document.getElementById('less-error-message:' + extractId(path)); - if (node) { - node.parentNode.removeChild(node); - } -} - -function removeErrorConsole(path) { - //no action -} - -function removeError(path) { - if (!less.errorReporting || less.errorReporting === "html") { - removeErrorHTML(path); - } else if (less.errorReporting === "console") { - removeErrorConsole(path); - } else if (typeof less.errorReporting === 'function') { - less.errorReporting("remove", path); - } -} - -function loadStyles(modifyVars) { - var styles = document.getElementsByTagName('style'), - style; - for (var i = 0; i < styles.length; i++) { - style = styles[i]; - if (style.type.match(typePattern)) { - var env = new less.tree.parseEnv(less), - lessText = style.innerHTML || ''; - env.filename = document.location.href.replace(/#.*$/, ''); - - if (modifyVars || less.globalVars) { - env.useFileCache = true; - } - - /*jshint loopfunc:true */ - // use closure to store current value of i - var callback = (function(style) { - return function (e, cssAST) { - if (e) { - return error(e, "inline"); - } - var css = cssAST.toCSS(less); - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }; - })(style); - new(less.Parser)(env).parse(lessText, callback, {globalVars: less.globalVars, modifyVars: modifyVars}); - } - } -} - -function extractUrlParts(url, baseUrl) { - // urlParts[1] = protocol&hostname || / - // urlParts[2] = / if path relative to host base - // urlParts[3] = directories - // urlParts[4] = filename - // urlParts[5] = parameters - - var urlPartsRegex = /^((?:[a-z-]+:)?\/+?(?:[^\/\?#]*\/)|([\/\\]))?((?:[^\/\\\?#]*[\/\\])*)([^\/\\\?#]*)([#\?].*)?$/i, - urlParts = url.match(urlPartsRegex), - returner = {}, directories = [], i, baseUrlParts; - - if (!urlParts) { - throw new Error("Could not parse sheet href - '"+url+"'"); - } - - // Stylesheets in IE don't always return the full path - if (!urlParts[1] || urlParts[2]) { - baseUrlParts = baseUrl.match(urlPartsRegex); - if (!baseUrlParts) { - throw new Error("Could not parse page url - '"+baseUrl+"'"); - } - urlParts[1] = urlParts[1] || baseUrlParts[1] || ""; - if (!urlParts[2]) { - urlParts[3] = baseUrlParts[3] + urlParts[3]; - } - } - - if (urlParts[3]) { - directories = urlParts[3].replace(/\\/g, "/").split("/"); - - // extract out . before .. so .. doesn't absorb a non-directory - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".") { - directories.splice(i, 1); - i -= 1; - } - } - - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".." && i > 0) { - directories.splice(i-1, 2); - i -= 2; - } - } - } - - returner.hostPart = urlParts[1]; - returner.directories = directories; - returner.path = urlParts[1] + directories.join("/"); - returner.fileUrl = returner.path + (urlParts[4] || ""); - returner.url = returner.fileUrl + (urlParts[5] || ""); - return returner; -} - -function pathDiff(url, baseUrl) { - // diff between two paths to create a relative path - - var urlParts = extractUrlParts(url), - baseUrlParts = extractUrlParts(baseUrl), - i, max, urlDirectories, baseUrlDirectories, diff = ""; - if (urlParts.hostPart !== baseUrlParts.hostPart) { - return ""; - } - max = Math.max(baseUrlParts.directories.length, urlParts.directories.length); - for(i = 0; i < max; i++) { - if (baseUrlParts.directories[i] !== urlParts.directories[i]) { break; } - } - baseUrlDirectories = baseUrlParts.directories.slice(i); - urlDirectories = urlParts.directories.slice(i); - for(i = 0; i < baseUrlDirectories.length-1; i++) { - diff += "../"; - } - for(i = 0; i < urlDirectories.length-1; i++) { - diff += urlDirectories[i] + "/"; - } - return diff; -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new XMLHttpRequest(); - } else { - try { - /*global ActiveXObject */ - return new ActiveXObject("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX.", logLevel.errors); - return null; - } - } -} - -function doXHR(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? less.fileAsync : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - log("XHR: Getting '" + url + "'", logLevel.info); - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } - - if (isFileProtocol && !less.fileAsync) { - if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } -} - -function loadFile(originalHref, currentFileInfo, callback, env, modifyVars) { - - if (currentFileInfo && currentFileInfo.currentDirectory && !/^([a-z-]+:)?\//.test(originalHref)) { - originalHref = currentFileInfo.currentDirectory + originalHref; - } - - // sheet may be set to the stylesheet for the initial load or a collection of properties including - // some env variables for imports - var hrefParts = extractUrlParts(originalHref, window.location.href); - var href = hrefParts.url; - var newFileInfo = { - currentDirectory: hrefParts.path, - filename: href - }; - - if (currentFileInfo) { - newFileInfo.entryPath = currentFileInfo.entryPath; - newFileInfo.rootpath = currentFileInfo.rootpath; - newFileInfo.rootFilename = currentFileInfo.rootFilename; - newFileInfo.relativeUrls = currentFileInfo.relativeUrls; - } else { - newFileInfo.entryPath = hrefParts.path; - newFileInfo.rootpath = less.rootpath || hrefParts.path; - newFileInfo.rootFilename = href; - newFileInfo.relativeUrls = env.relativeUrls; - } - - if (newFileInfo.relativeUrls) { - if (env.rootpath) { - newFileInfo.rootpath = extractUrlParts(env.rootpath + pathDiff(hrefParts.path, newFileInfo.entryPath)).path; - } else { - newFileInfo.rootpath = hrefParts.path; - } - } - - if (env.useFileCache && fileCache[href]) { - try { - var lessText = fileCache[href]; - callback(null, lessText, href, newFileInfo, { lastModified: new Date() }); - } catch (e) { - callback(e, null, href); - } - return; - } - - doXHR(href, env.mime, function (data, lastModified) { - // per file cache - fileCache[href] = data; - - // Use remote copy (re-parse) - try { - callback(null, data, href, newFileInfo, { lastModified: lastModified }); - } catch (e) { - callback(e, null, href); - } - }, function (status, url) { - callback({ type: 'File', message: "'" + url + "' wasn't found (" + status + ")" }, null, href); - }); -} - -function loadStyleSheet(sheet, callback, reload, remaining, modifyVars) { - - var env = new less.tree.parseEnv(less); - env.mime = sheet.type; - - if (modifyVars || less.globalVars) { - env.useFileCache = true; - } - - loadFile(sheet.href, null, function(e, data, path, newFileInfo, webInfo) { - - if (webInfo) { - webInfo.remaining = remaining; - - var css = cache && cache.getItem(path), - timestamp = cache && cache.getItem(path + ':timestamp'); - - if (!reload && timestamp && webInfo.lastModified && - (new(Date)(webInfo.lastModified).valueOf() === - new(Date)(timestamp).valueOf())) { - // Use local copy - createCSS(css, sheet); - webInfo.local = true; - callback(null, null, data, sheet, webInfo, path); - return; - } - } - - //TODO add tests around how this behaves when reloading - removeError(path); - - if (data) { - env.currentFileInfo = newFileInfo; - new(less.Parser)(env).parse(data, function (e, root) { - if (e) { return callback(e, null, null, sheet); } - try { - callback(e, root, data, sheet, webInfo, path); - } catch (e) { - callback(e, null, null, sheet); - } - }, {modifyVars: modifyVars, globalVars: less.globalVars}); - } else { - callback(e, null, null, sheet, webInfo, path); - } - }, env, modifyVars); -} - -function loadStyleSheets(callback, reload, modifyVars) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1), modifyVars); - } -} - -function initRunningMode(){ - if (less.env === 'development') { - less.optimization = 0; - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (e, root, _, sheet, env) { - if (e) { - error(e, sheet.href); - } else if (root) { - createCSS(root.toCSS(less), sheet, env.lastModified); - } - }); - } - }, less.poll); - } else { - less.optimization = 3; - } -} - - - -// -// Watch mode -// -less.watch = function () { - if (!less.watchMode ){ - less.env = 'development'; - initRunningMode(); - } - this.watchMode = true; - return true; -}; - -less.unwatch = function () {clearInterval(less.watchTimer); this.watchMode = false; return false; }; - -if (/!watch/.test(location.hash)) { - less.watch(); -} - -if (less.env != 'development') { - try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; - } catch (_) {} -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - -// -// With this function, it's possible to alter variables and re-render -// CSS without reloading less-files -// -less.modifyVars = function(record) { - less.refresh(false, record); -}; - -less.refresh = function (reload, modifyVars) { - var startTime, endTime; - startTime = endTime = new Date(); - - loadStyleSheets(function (e, root, _, sheet, env) { - if (e) { - return error(e, sheet.href); - } - if (env.local) { - log("loading " + sheet.href + " from cache.", logLevel.info); - } else { - log("parsed " + sheet.href + " successfully.", logLevel.info); - createCSS(root.toCSS(less), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new Date() - endTime) + 'ms', logLevel.info); - if (env.remaining === 0) { - log("css generated in " + (new Date() - startTime) + 'ms', logLevel.info); - } - endTime = new Date(); - }, reload, modifyVars); - - loadStyles(modifyVars); -}; - -less.refreshStyles = loadStyles; - -less.Parser.fileLoader = loadFile; - -less.refresh(less.env === 'development'); - -// amd.js -// -// Define Less as an AMD module. -if (typeof define === "function" && define.amd) { - define(function () { return less; } ); -} - -})(window); \ No newline at end of file diff --git a/awx/ui/static/lib/less.js/dist/less-1.6.1.min.js b/awx/ui/static/lib/less.js/dist/less-1.6.1.min.js deleted file mode 100644 index 3636c6c5b5..0000000000 --- a/awx/ui/static/lib/less.js/dist/less-1.6.1.min.js +++ /dev/null @@ -1,16 +0,0 @@ -/*! - * LESS - Leaner CSS v1.6.1 - * http://lesscss.org - * - * Copyright (c) 2009-2014, Alexis Sellier - * Licensed under the Apache v2 License. - * - */ - - /** * @license Apache v2 - */ - -!function(a,b){function c(b){return a.less[b.split("/")[1]]}function d(a,b){"development"==v.env&&"undefined"!=typeof console&&v.logLevel>=b&&console.log("less: "+a)}function e(a){return a.replace(/^[a-z-]+:\/+?[^\/]+/,"").replace(/^\//,"").replace(/\.[a-zA-Z]+$/,"").replace(/[^\.\w-]+/g,"-").replace(/\./g,":")}function f(a,c){var e="{line} {content}",f=a.filename||c,g=[],h=(a.type||"Syntax")+"Error: "+(a.message||"There is an error in your .less file")+" in "+f+" ",i=function(a,c,d){a.extract[c]!==b&&g.push(e.replace(/\{line\}/,(parseInt(a.line,10)||0)+(c-1)).replace(/\{class\}/,d).replace(/\{content\}/,a.extract[c]))};a.extract?(i(a,0,""),i(a,1,"line"),i(a,2,""),h+="on line "+a.line+", column "+(a.column+1)+":\n"+g.join("\n")):a.stack&&(h+=a.stack),d(h,y.errors)}function g(a,b,c){var f=b.href||"",g="less:"+(b.title||e(f)),h=document.getElementById(g),i=!1,j=document.createElement("style");if(j.setAttribute("type","text/css"),b.media&&j.setAttribute("media",b.media),j.id=g,j.styleSheet)try{j.styleSheet.cssText=a}catch(k){throw new Error("Couldn't reassign styleSheet.cssText.")}else j.appendChild(document.createTextNode(a)),i=null!==h&&h.childNodes.length>0&&j.childNodes.length>0&&h.firstChild.nodeValue===j.firstChild.nodeValue;var l=document.getElementsByTagName("head")[0];if(null===h||i===!1){var m=b&&b.nextSibling||null;m?m.parentNode.insertBefore(j,m):l.appendChild(j)}if(h&&i===!1&&h.parentNode.removeChild(h),c&&C){d("saving "+f+" to cache.",y.info);try{C.setItem(f,a),C.setItem(f+":timestamp",c)}catch(k){d("failed to save",y.errors)}}}function h(a,c){var d,f,h="less-error-message:"+e(c||""),i='
  • {content}
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    "+(a.type||"Syntax")+"Error: "+(a.message||"There is an error in your .less file")+'

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-}; - - -if (typeof(window.less) === 'undefined' || typeof(window.less.nodeType) !== 'undefined') { window.less = {}; } -less = window.less; -tree = window.less.tree = {}; -less.mode = 'browser'; - -var less, tree; - -// Node.js does not have a header file added which defines less -if (less === undefined) { - less = exports; - tree = require('./tree'); - less.mode = 'node'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `currentPos` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // current chunk - currentPos, // index of current chunk, in `input` - parser, - parsers, - rootFilename = env && env.filename; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed around by reference. - if (!(env instanceof tree.parseEnv)) { - env = new tree.parseEnv(env); - } - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - contentsIgnoredChars: env.contentsIgnoredChars, // lines inserted, not in the original less - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, currentFileInfo, importOptions, callback) { - var parserImports = this; - this.queue.push(path); - - var fileParsedFunc = function (e, root, fullPath) { - parserImports.queue.splice(parserImports.queue.indexOf(path), 1); // Remove the path from the queue - - var importedPreviously = fullPath in parserImports.files || fullPath === rootFilename; - - parserImports.files[fullPath] = root; // Store the root - - if (e && !parserImports.error) { parserImports.error = e; } - - callback(e, root, importedPreviously, fullPath); - }; - - if (less.Parser.importer) { - less.Parser.importer(path, currentFileInfo, fileParsedFunc, env); - } else { - less.Parser.fileLoader(path, currentFileInfo, function(e, contents, fullPath, newFileInfo) { - if (e) {fileParsedFunc(e); return;} - - var newEnv = new tree.parseEnv(env); - - newEnv.currentFileInfo = newFileInfo; - newEnv.processImports = false; - newEnv.contents[fullPath] = contents; - - if (currentFileInfo.reference || importOptions.reference) { - newFileInfo.reference = true; - } - - if (importOptions.inline) { - fileParsedFunc(null, contents, fullPath); - } else { - new(less.Parser)(newEnv).parse(contents, function (e, root) { - fileParsedFunc(e, root, fullPath); - }); - } - }, env); - } - } - }; - - function save() { temp = current; memo = currentPos = i; } - function restore() { current = temp; currentPos = i = memo; } - - function sync() { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - } - function isWhitespace(str, pos) { - var code = str.charCodeAt(pos | 0); - return (code <= 32) && (code === 32 || code === 10 || code === 9); - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var tokType = typeof tok, - match, length; - - // Either match a single character in the input, - // or match a regexp in the current chunk (`current`). - // - if (tokType === "string") { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - // regexp - sync (); - if (! (match = tok.exec(current))) { - return null; - } - - length = match[0].length; - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - - // Specialization of $(tok) - function $re(tok) { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - var m = tok.exec(current); - if (!m) { - return null; - } - - skipWhitespace(m[0].length); - if(typeof m === "string") { - return m; - } - - return m.length === 1 ? m[0] : m; - } - - var _$re = $re; - - // Specialization of $(tok) - function $char(tok) { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - curr = i - currentPos, - endIndex = i + current.length - curr, - mem = (i += length), - inp = input, - c; - - for (; i < endIndex; i++) { - c = inp.charCodeAt(i); - if (c > 32) { - break; - } - - if ((c !== 32) && (c !== 10) && (c !== 9) && (c !== 13)) { - break; - } - } - - current = current.slice(length + i - mem + curr); - currentPos = i; - - if (!current.length && (j < chunks.length - 1)) { - current = chunks[++j]; - skipWhitespace(0); // skip space at the beginning of a chunk - return true; // things changed - } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - // some older browsers return typeof 'function' for RegExp - var result = (Object.prototype.toString.call(arg) === '[object Function]') ? arg.call(parsers) : $(arg); - if (result) { - return result; - } - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } - - // Specialization of expect() - function expectChar(arg, msg) { - if (input.charAt(i) === arg) { - skipWhitespace(1); - return arg; - } - error(msg || "expected '" + arg + "' got '" + input.charAt(i) + "'"); - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - return tok.test(current); - } - } - - // Specialization of peek() - function peekChar(tok) { - return input.charAt(i) === tok; - } - - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, inputStream) { - var n = index + 1, - line = null, - column = -1; - - while (--n >= 0 && inputStream.charAt(n) !== '\n') { - column++; - } - - if (typeof index === 'number') { - line = (inputStream.slice(0, index).match(/\n/g) || "").length; - } - - return { - line: line, - column: column - }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - callLine = e.call && getLocation(e.call, input).line, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = callLine + 1; - this.callExtract = lines[callLine]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // @param str A string containing 'less' markup - // @param callback call `callback` when done. - // @param [additionalData] An optional map which can contains vars - a map (key, value) of variables to apply - // - parse: function (str, callback, additionalData) { - var root, line, lines, error = null, globalVars, modifyVars, preText = ""; - - i = j = currentPos = furthest = 0; - - globalVars = (additionalData && additionalData.globalVars) ? less.Parser.serializeVars(additionalData.globalVars) + '\n' : ''; - modifyVars = (additionalData && additionalData.modifyVars) ? '\n' + less.Parser.serializeVars(additionalData.modifyVars) : ''; - - if (globalVars || (additionalData && additionalData.banner)) { - preText = ((additionalData && additionalData.banner) ? additionalData.banner : "") + globalVars; - parser.imports.contentsIgnoredChars[env.currentFileInfo.filename] = preText.length; - } - - str = str.replace(/\r\n/g, '\n'); - // Remove potential UTF Byte Order Mark - input = str = preText + str.replace(/^\uFEFF/, '') + modifyVars; - parser.imports.contents[env.currentFileInfo.filename] = str; - - // Split the input into chunks. - chunks = (function (input) { - var len = input.length, level = 0, parenLevel = 0, - lastOpening, lastOpeningParen, lastMultiComment, lastMultiCommentEndBrace, - chunks = [], emitFrom = 0, - parserCurrentIndex, currentChunkStartIndex, cc, cc2, matched; - - function fail(msg, index) { - error = new(LessError)({ - index: index || parserCurrentIndex, - type: 'Parse', - message: msg, - filename: env.currentFileInfo.filename - }, env); - } - - function emitChunk(force) { - var len = parserCurrentIndex - emitFrom; - if (((len < 512) && !force) || !len) { - return; - } - chunks.push(input.slice(emitFrom, parserCurrentIndex + 1)); - emitFrom = parserCurrentIndex + 1; - } - - for (parserCurrentIndex = 0; parserCurrentIndex < len; parserCurrentIndex++) { - cc = input.charCodeAt(parserCurrentIndex); - if (((cc >= 97) && (cc <= 122)) || (cc < 34)) { - // a-z or whitespace - continue; - } - - switch (cc) { - case 40: // ( - parenLevel++; - lastOpeningParen = parserCurrentIndex; - continue; - case 41: // ) - if (--parenLevel < 0) { - return fail("missing opening `(`"); - } - continue; - case 59: // ; - if (!parenLevel) { emitChunk(); } - continue; - case 123: // { - level++; - lastOpening = parserCurrentIndex; - continue; - case 125: // } - if (--level < 0) { - return fail("missing opening `{`"); - } - if (!level) { emitChunk(); } - continue; - case 92: // \ - if (parserCurrentIndex < len - 1) { parserCurrentIndex++; continue; } - return fail("unescaped `\\`"); - case 34: - case 39: - case 96: // ", ' and ` - matched = 0; - currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 1; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 > 96) { continue; } - if (cc2 == cc) { matched = 1; break; } - if (cc2 == 92) { // \ - if (parserCurrentIndex == len - 1) { - return fail("unescaped `\\`"); - } - parserCurrentIndex++; - } - } - if (matched) { continue; } - return fail("unmatched `" + String.fromCharCode(cc) + "`", currentChunkStartIndex); - case 47: // /, check for comment - if (parenLevel || (parserCurrentIndex == len - 1)) { continue; } - cc2 = input.charCodeAt(parserCurrentIndex + 1); - if (cc2 == 47) { - // //, find lnfeed - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if ((cc2 <= 13) && ((cc2 == 10) || (cc2 == 13))) { break; } - } - } else if (cc2 == 42) { - // /*, find */ - lastMultiComment = currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len - 1; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 == 125) { lastMultiCommentEndBrace = parserCurrentIndex; } - if (cc2 != 42) { continue; } - if (input.charCodeAt(parserCurrentIndex + 1) == 47) { break; } - } - if (parserCurrentIndex == len - 1) { - return fail("missing closing `*/`", currentChunkStartIndex); - } - parserCurrentIndex++; - } - continue; - case 42: // *, check for unmatched */ - if ((parserCurrentIndex < len - 1) && (input.charCodeAt(parserCurrentIndex + 1) == 47)) { - return fail("unmatched `/*`"); - } - continue; - } - } - - if (level !== 0) { - if ((lastMultiComment > lastOpening) && (lastMultiCommentEndBrace > lastMultiComment)) { - return fail("missing closing `}` or `*/`", lastOpening); - } else { - return fail("missing closing `}`", lastOpening); - } - } else if (parenLevel !== 0) { - return fail("missing closing `)`", lastOpeningParen); - } - - emitChunk(true); - return chunks; - })(str); - - if (error) { - return callback(new(LessError)(error, env)); - } - - current = chunks[0]; - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)(null, this.parsers.primary()); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - return function (options, variables) { - options = options || {}; - var evaldRoot, - css, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, null, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var preEvalVisitors = [], - visitors = [ - new(tree.joinSelectorVisitor)(), - new(tree.processExtendsVisitor)(), - new(tree.toCSSVisitor)({compress: Boolean(options.compress)}) - ], i, root = this; - - if (options.plugins) { - for(i =0; i < options.plugins.length; i++) { - if (options.plugins[i].isPreEvalVisitor) { - preEvalVisitors.push(options.plugins[i]); - } else { - if (options.plugins[i].isPreVisitor) { - visitors.splice(0, 0, options.plugins[i]); - } else { - visitors.push(options.plugins[i]); - } - } - } - } - - for(i = 0; i < preEvalVisitors.length; i++) { - preEvalVisitors[i].run(root); - } - - evaldRoot = evaluate.call(root, evalEnv); - - for(i = 0; i < visitors.length; i++) { - visitors[i].run(evaldRoot); - } - - if (options.sourceMap) { - evaldRoot = new tree.sourceMapOutput( - { - contentsIgnoredCharsMap: parser.imports.contentsIgnoredChars, - writeSourceMap: options.writeSourceMap, - rootNode: evaldRoot, - contentsMap: parser.imports.contents, - sourceMapFilename: options.sourceMapFilename, - sourceMapURL: options.sourceMapURL, - outputFilename: options.sourceMapOutputFilename, - sourceMapBasepath: options.sourceMapBasepath, - sourceMapRootpath: options.sourceMapRootpath, - outputSourceFiles: options.outputSourceFiles, - sourceMapGenerator: options.sourceMapGenerator - }); - } - - css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits), - numPrecision: 8}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.cleancss && less.mode === 'node') { - var CleanCSS = require('clean-css'), - cleancssOptions = options.cleancssOptions || {}; - - if (cleancssOptions.keepSpecialComments === undefined) { - cleancssOptions.keepSpecialComments = "*"; - } - cleancssOptions.processImport = false; - cleancssOptions.noRebase = true; - if (cleancssOptions.noAdvanced === undefined) { - cleancssOptions.noAdvanced = true; - } - - return new CleanCSS(cleancssOptions).minify(css); - } else if (options.compress) { - return css.replace(/(^(\s)+)|((\s)+$)/g, ""); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - var loc = getLocation(i, input); - lines = input.split('\n'); - line = loc.line + 1; - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: loc.column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - return callback(e); - } - else { - return callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - return finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: parsers = { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var mixin = this.mixin, $re = _$re, root = [], node; - - while (current) - { - node = this.extendRule() || mixin.definition() || this.rule() || this.ruleset() || - mixin.call() || this.comment() || this.directive(); - if (node) { - root.push(node); - } else { - if (!($re(/^[\s\n]+/) || $re(/^;+/))) { - break; - } - } - } - - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') { return; } - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($re(/^\/\/.*/), true, i, env.currentFileInfo); - } - comment = $re(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/); - if (comment) { - return new(tree.Comment)(comment, false, i, env.currentFileInfo); - } - }, - - comments: function () { - var comment, comments = []; - - while(true) { - comment = this.comment(); - if (!comment) { - break; - } - comments.push(comment); - } - - return comments; - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; } - - if (e) { $char('~'); } - - str = $re(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/); - if (str) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - k = $re(/^[_A-Za-z-][_A-Za-z0-9-]*/); - if (k) { - var color = tree.Color.fromKeyword(k); - if (color) { - return color; - } - return new(tree.Keyword)(k); - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(current); - if (!name) { return; } - - name = name[1]; - nameLC = name.toLowerCase(); - if (nameLC === 'url') { - return null; - } - - i += name.length; - - if (nameLC === 'alpha') { - alpha_ret = parsers.alpha(); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $char('('); // Parse the '(' and consume whitespace. - - args = this.arguments(); - - if (! $char(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (true) { - arg = this.assignment() || parsers.expression(); - if (!arg) { - break; - } - args.push(arg); - if (! $char(',')) { - break; - } - } - return args; - }, - literal: function () { - return this.dimension() || - this.color() || - this.quoted() || - this.unicodeDescriptor(); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - key = $re(/^\w+(?=\s?=)/i); - if (!key) { - return; - } - if (!$char('=')) { - return; - } - value = parsers.entity(); - if (value) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$re(/^url\(/)) { - return; - } - - value = this.quoted() || this.variable() || - $re(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expectChar(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $re(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var curly, index = i; - - if (input.charAt(i) === '@' && (curly = $re(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $re(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) { - return; - } - - value = $re(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/); - if (value) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - ud = $re(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/); - if (ud) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '`') { return; } - if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) { - error("You are using JavaScript, which has been disabled."); - } - - if (e) { $char('~'); } - - str = $re(/^`([^`]*)`/); - if (str) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*:/))) { return name[1]; } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList, extend; - - if (!(isRule ? $re(/^&:extend\(/) : $re(/^:extend\(/))) { return; } - - do { - option = null; - elements = null; - while (! (option = $re(/^(all)(?=\s*(\)|,))/))) { - e = this.element(); - if (!e) { break; } - if (elements) { elements.push(e); } else { elements = [ e ]; } - } - - option = option && option[1]; - - extend = new(tree.Extend)(new(tree.Selector)(elements), option, index); - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - - } while($char(",")); - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var s = input.charAt(i), important = false, index = i, elemIndex, - elements, elem, e, c, args; - - if (s !== '.' && s !== '#') { return; } - - save(); // stop us absorbing part of an invalid selector - - while (true) { - elemIndex = i; - e = $re(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/); - if (!e) { - break; - } - elem = new(tree.Element)(c, e, elemIndex, env.currentFileInfo); - if (elements) { elements.push(elem); } else { elements = [ elem ]; } - c = $char('>'); - } - - if (elements) { - if ($char('(')) { - args = this.args(true).args; - expectChar(')'); - } - - if (parsers.important()) { - important = true; - } - - if (parsers.end()) { - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - } - - restore(); - }, - args: function (isCall) { - var parsers = parser.parsers, entities = parsers.entities, - returner = { args:null, variadic: false }, - expressions = [], argsSemiColon = [], argsComma = [], - isSemiColonSeperated, expressionContainsNamed, name, nameLoop, value, arg; - - while (true) { - if (isCall) { - arg = parsers.expression(); - } else { - parsers.comments(); - if (input.charAt(i) === '.' && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = entities.variable() || entities.literal() || entities.keyword(); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value.length == 1) { - val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($char(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(parsers.expression); - nameLoop = (name = val.name); - } else if (!isCall && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($char(',')) { - continue; - } - - if ($char(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) { - return; - } - - save(); - - match = $re(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/); - if (match) { - name = match[1]; - - var argInfo = this.args(false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$char(')')) { - furthest = i; - restore(); - } - - parsers.comments(); - - if ($re(/^when/)) { // Guard - cond = expect(parsers.conditions, 'expected condition'); - } - - ruleset = parsers.block(); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - var entities = this.entities; - - return entities.literal() || entities.variable() || entities.url() || - entities.call() || entities.keyword() || entities.javascript() || - this.comment(); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $char(';') || peekChar('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $re(/^\(opacity=/i)) { return; } - value = $re(/^\d+/) || this.entities.variable(); - if (value) { - expectChar(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, c, v, index = i; - - c = this.combinator(); - - e = $re(/^(?:\d+\.\d+|\d+)%/) || $re(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $char('*') || $char('&') || this.attribute() || $re(/^\([^()@]+\)/) || $re(/^[\.#](?=@)/) || - this.entities.variableCurly(); - - if (! e) { - if ($char('(')) { - if ((v = this.selector()) && $char(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, index, env.currentFileInfo); } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|' || c === '^') { - i++; - if (input.charAt(i) === '^') { - c = '^^'; - i++; - } - while (isWhitespace(input, i)) { i++; } - return new(tree.Combinator)(c); - } else if (isWhitespace(input, i - 1)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - // - // A CSS selector (see selector below) - // with less extensions e.g. the ability to extend and guard - // - lessSelector: function () { - return this.selector(true); - }, - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function (isLess) { - var index = i, $re = _$re, elements, extendList, c, e, extend, when, condition; - - while ((isLess && (extend = this.extend())) || (isLess && (when = $re(/^when/))) || (e = this.element())) { - if (when) { - condition = expect(this.conditions, 'expected condition'); - } else if (condition) { - error("CSS guard can only be used at the end of selector"); - } else if (extend) { - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - } else { - if (extendList) { error("Extend can only be used at the end of selector"); } - c = input.charAt(i); - if (elements) { elements.push(e); } else { elements = [ e ]; } - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { - break; - } - } - - if (elements) { return new(tree.Selector)(elements, extendList, condition, index, env.currentFileInfo); } - if (extendList) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - if (! $char('[')) { return; } - - var entities = this.entities, - key, val, op; - - if (!(key = entities.variableCurly())) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - op = $re(/^[|~*$^]?=/); - if (op) { - val = entities.quoted() || $re(/^[0-9]+%/) || $re(/^[\w-]+/) || entities.variableCurly(); - } - - expectChar(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($char('{') && (content = this.primary()) && $char('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors, s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - while (true) { - s = this.lessSelector(); - if (!s) { - break; - } - if (selectors) { selectors.push(s); } else { selectors = [ s ]; } - this.comments(); - if (s.condition && selectors.length > 1) { - error("Guards are only currently allowed on a single selector."); - } - if (! $char(',')) { break; } - if (s.condition) { - error("Guards are only currently allowed on a single selector."); - } - this.comments(); - } - - if (selectors && (rules = this.block())) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) { - ruleset.debugInfo = debugInfo; - } - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, c = input.charAt(i), important, merge = false; - save(); - - if (c === '.' || c === '#' || c === '&') { return; } - - name = this.variable() || this.ruleProperty(); - if (name) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || (name.charAt && (name.charAt(0) === '@'))) ? - (this.value() || this.anonymousValue()) : - (this.anonymousValue() || this.value()); - - important = this.important(); - - // a name returned by this.ruleProperty() is always an array of the form: - // [string-1, ..., string-n, ""] or [string-1, ..., string-n, "+"] - // where each item is a tree.Keyword or tree.Variable - merge = name.pop && (name.pop().value === "+"); - - if (value && this.end()) { - return new (tree.Rule)(name, value, important, merge, memo, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } - }, - anonymousValue: function () { - var match; - match = /^([^@+\/'"*`(;{}-]*);/.exec(current); - if (match) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $re(/^@import?\s+/); - - var options = (dir ? this.importOptions() : null) || {}; - - if (dir && (path = this.entities.quoted() || this.entities.url())) { - features = this.mediaFeatures(); - if ($char(';')) { - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $char('(')) { return null; } - do { - o = this.importOption(); - if (o) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $char(',')) { break; } - } - } while (o); - expectChar(')'); - return options; - }, - - importOption: function() { - var opt = $re(/^(less|css|multiple|once|inline|reference)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var entities = this.entities, nodes = [], e, p; - do { - e = entities.keyword() || entities.variable(); - if (e) { - nodes.push(e); - } else if ($char('(')) { - p = this.property(); - e = this.value(); - if ($char(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null; } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var entities = this.entities, features = [], e; - do { - e = this.mediaFeature(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } else { - e = entities.variable(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - if ($re(/^@media/)) { - features = this.mediaFeatures(); - - rules = this.block(); - if (rules) { - media = new(tree.Media)(rules, features, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - media.debugInfo = debugInfo; - } - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var index = i, name, value, rules, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression, identifier; - - if (input.charAt(i) !== '@') { return; } - - value = this['import']() || this.media(); - if (value) { - return value; - } - - save(); - - name = $re(/^@[a-z-]+/); - - if (!name) { return; } - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@host": - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - identifier = ($re(/^[^{]+/) || '').trim(); - if (identifier) { - name += " " + identifier; - } - } - - if (hasBlock) { - rules = this.block(); - if (rules) { - return new(tree.Directive)(name, rules, index, env.currentFileInfo); - } - } else { - value = hasExpression ? this.expression() : this.entity(); - if (value && $char(';')) { - var directive = new(tree.Directive)(name, value, index, env.currentFileInfo); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = []; - - do { - e = this.expression(); - if (e) { - expressions.push(e); - if (! $char(',')) { break; } - } - } while(e); - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $re(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($char('(')) { - a = this.addition(); - if (a) { - e = new(tree.Expression)([a]); - expectChar(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced; - m = this.operand(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - if (peek(/^\/[*\/]/)) { - break; - } - op = $char('/') || $char('*'); - - if (!op) { break; } - - a = this.operand(); - - if (!a) { break; } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - m = this.multiplication(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - op = $re(/^[-+]\s+/) || (!isSpaced && ($char('+') || $char('-'))); - if (!op) { - break; - } - a = this.multiplication(); - if (!a) { - break; - } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - a = this.condition(); - if (a) { - while (true) { - if (!peek(/^,\s*(not\s*)?\(/) || !$char(',')) { - break; - } - b = this.condition(); - if (!b) { - break; - } - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var entities = this.entities, index = i, negate = false, - a, b, c, op; - - if ($re(/^not/)) { negate = true; } - expectChar('('); - a = this.addition() || entities.keyword() || entities.quoted(); - if (a) { - op = $re(/^(?:>=|<=|=<|[<=>])/); - if (op) { - b = this.addition() || entities.keyword() || entities.quoted(); - if (b) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expectChar(')'); - return $re(/^and/) ? new(tree.Condition)('and', c, this.condition()) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var entities = this.entities, - p = input.charAt(i + 1), negate; - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $char('-'); } - var o = this.sub() || entities.dimension() || - entities.color() || entities.variable() || - entities.call(); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var entities = [], e, delim; - - do { - e = this.addition() || this.entity(); - if (e) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/)) { - delim = $char('/'); - if (delim) { - entities.push(new(tree.Anonymous)(delim)); - } - } - } - } while (e); - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name = $re(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/); - if (name) { - return name[1]; - } - }, - ruleProperty: function () { - var c = current, name = [], index = [], length = 0, s, k; - - function match(re) { - var a = re.exec(c); - if (a) { - index.push(i + length); - length += a[0].length; - c = c.slice(a[1].length); - return name.push(a[1]); - } - } - - match(/^(\*?)/); - while (match(/^((?:[\w-]+)|(?:@\{[\w-]+\}))/)); // ! - if ((name.length > 1) && match(/^\s*(\+?)\s*:/)) { - // at last, we have the complete match now. move forward, - // convert name particles to tree objects and return: - skipWhitespace(length); - if (name[0] === '') { - name.shift(); - index.shift(); - } - for (k = 0; k < name.length; k++) { - s = name[k]; - name[k] = (s.charAt(0) !== '@') - ? new(tree.Keyword)(s) - : new(tree.Variable)('@' + s.slice(2, -1), - index[k], env.currentFileInfo); - } - return name; - } - } - } - }; - return parser; -}; -less.Parser.serializeVars = function(vars) { - var s = ''; - - for (var name in vars) { - if (Object.hasOwnProperty.call(vars, name)) { - var value = vars[name]; - s += ((name[0] === '@') ? '' : '@') + name +': '+ value + - ((('' + value).slice(-1) === ';') ? '' : ';'); - } - } - - return s; -}; - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 255); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; } - else if (h * 2 < 1) { return m2; } - else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; } - else { return m1; } - } - - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - // filter: saturate(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if (color.luma() < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - /*jshint loopfunc:true */ - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - if(!(val instanceof tree.Dimension)) { - throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") }; - } - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return _math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _minmax: function (isMin, args) { - args = Array.prototype.slice.call(args); - switch(args.length) { - case 0: throw { type: "Argument", message: "one or more arguments required" }; - case 1: return args[0]; - } - var i, j, current, currentUnified, referenceUnified, unit, - order = [], // elems only contains original argument values. - values = {}; // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - for (i = 0; i < args.length; i++) { - current = args[i]; - if (!(current instanceof tree.Dimension)) { - order.push(current); - continue; - } - currentUnified = current.unify(); - unit = currentUnified.unit.toString(); - j = values[unit]; - if (j === undefined) { - values[unit] = order.length; - order.push(current); - continue; - } - referenceUnified = order[j].unify(); - if ( isMin && currentUnified.value < referenceUnified.value || - !isMin && currentUnified.value > referenceUnified.value) { - order[j] = current; - } - } - if (order.length == 1) { - return order[0]; - } - args = order.map(function (a) { return a.toCSS(this.env); }) - .join(this.env.compress ? "," : ", "); - return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")"); - }, - min: function () { - return this._minmax(true, arguments); - }, - max: function () { - return this._minmax(false, arguments); - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - var colorCandidate = n.value, - returnColor; - returnColor = tree.Color.fromKeyword(colorCandidate); - if (returnColor) { - return returnColor; - } - if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) { - return new(tree.Color)(colorCandidate.slice(1)); - } - throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" }; - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - return Array.isArray(values.value) - ? values.value[index] : Array(values)[index]; - }, - length: function(values) { - var n = Array.isArray(values.value) ? values.value.length : 1; - return new tree.Dimension(n); - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require('fs'), - path = require('path'), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) { mimetype += ';base64'; } - } - else { - useBase64 = /;base64$/.test(mimetype); - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "\"data:" + mimetype + ',' + buf + "\""; - return new(tree.URL)(new(tree.Anonymous)(uri)); - }, - - "svg-gradient": function(direction) { - - function throwArgumentDescriptor() { - throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" }; - } - - if (arguments.length < 3) { - throwArgumentDescriptor(); - } - var stops = Array.prototype.slice.call(arguments, 1), - gradientDirectionSvg, - gradientType = "linear", - rectangleDimension = 'x="0" y="0" width="1" height="1"', - useBase64 = true, - renderEnv = {compress: false}, - returner, - directionValue = direction.toCSS(renderEnv), - i, color, position, positionValue, alpha; - - switch (directionValue) { - case "to bottom": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - gradientType = "radial"; - gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" }; - } - returner = '' + - '' + - '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>'; - - for (i = 0; i < stops.length; i+= 1) { - if (stops[i].value) { - color = stops[i].value[0]; - position = stops[i].value[1]; - } else { - color = stops[i]; - position = undefined; - } - - if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) { - throwArgumentDescriptor(); - } - positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%"; - alpha = color.alpha; - returner += ''; - } - returner += '' + - ''; - - if (useBase64) { - try { - returner = require('./encoder').encodeBase64(returner); // TODO browser implementation - } catch(e) { - useBase64 = false; - } - } - - returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'"; - return new(tree.URL)(new(tree.Anonymous)(returner)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -// Math - -var mathFunctions = { - // name, unit - ceil: null, - floor: null, - sqrt: null, - abs: null, - tan: "", - sin: "", - cos: "", - atan: "rad", - asin: "rad", - acos: "rad" -}; - -function _math(fn, unit, n) { - if (!(n instanceof tree.Dimension)) { - throw { type: "Argument", message: "argument must be a number" }; - } - if (unit == null) { - unit = n.unit; - } else { - n = n.unify(); - } - return new(tree.Dimension)(fn(parseFloat(n.value)), unit); -} - -// ~ End of Math - -// Color Blending -// ref: http://www.w3.org/TR/compositing-1 - -function colorBlend(mode, color1, color2) { - var ab = color1.alpha, cb, // backdrop - as = color2.alpha, cs, // source - ar, cr, r = []; // result - - ar = as + ab * (1 - as); - for (var i = 0; i < 3; i++) { - cb = color1.rgb[i] / 255; - cs = color2.rgb[i] / 255; - cr = mode(cb, cs); - if (ar) { - cr = (as * cs + ab * (cb - - as * (cb + cs - cr))) / ar; - } - r[i] = cr * 255; - } - - return new(tree.Color)(r, ar); -} - -var colorBlendMode = { - multiply: function(cb, cs) { - return cb * cs; - }, - screen: function(cb, cs) { - return cb + cs - cb * cs; - }, - overlay: function(cb, cs) { - cb *= 2; - return (cb <= 1) - ? colorBlendMode.multiply(cb, cs) - : colorBlendMode.screen(cb - 1, cs); - }, - softlight: function(cb, cs) { - var d = 1, e = cb; - if (cs > 0.5) { - e = 1; - d = (cb > 0.25) ? Math.sqrt(cb) - : ((16 * cb - 12) * cb + 4) * cb; - } - return cb - (1 - 2 * cs) * e * (d - cb); - }, - hardlight: function(cb, cs) { - return colorBlendMode.overlay(cs, cb); - }, - difference: function(cb, cs) { - return Math.abs(cb - cs); - }, - exclusion: function(cb, cs) { - return cb + cs - 2 * cb * cs; - }, - - // non-w3c functions: - average: function(cb, cs) { - return (cb + cs) / 2; - }, - negation: function(cb, cs) { - return 1 - Math.abs(cb + cs - 1); - } -}; - -// ~ End of Color Blending - -tree.defaultFunc = { - eval: function () { - var v = this.value_, e = this.error_; - if (e) { - throw e; - } - if (v != null) { - return v ? tree.True : tree.False; - } - }, - value: function (v) { - this.value_ = v; - }, - error: function (e) { - this.error_ = e; - }, - reset: function () { - this.value_ = this.error_ = null; - } -}; - -function initFunctions() { - var f, tf = tree.functions; - - // math - for (f in mathFunctions) { - if (mathFunctions.hasOwnProperty(f)) { - tf[f] = _math.bind(null, Math[f], mathFunctions[f]); - } - } - - // color blending - for (f in colorBlendMode) { - if (colorBlendMode.hasOwnProperty(f)) { - tf[f] = colorBlend.bind(null, colorBlendMode[f]); - } - } - - // default - f = tree.defaultFunc; - tf["default"] = f.eval.bind(f); - -} initFunctions(); - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.fround = function(env, value) { - var p; - if (env && (env.numPrecision != null)) { - p = Math.pow(10, env.numPrecision); - return Math.round(value * p) / p; - } else { - return value; - } -}; - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); - -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); - -(function (tree) { - -tree.debugInfo = function(env, ctx, lineSeperator) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:\/\\])/g, function (a) { - if (a == '\\') { - a = '\/'; - } - return '\\' + a; - }) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - r = fun.call(obj, obj[i]); - if (r) { return r; } - } - return null; -}; - -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false); }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -tree.toCSS = function (env) { - var strs = []; - this.genCSS(env, { - add: function(chunk, fileInfo, index) { - strs.push(chunk); - }, - isEmpty: function () { - return strs.length === 0; - } - }); - return strs.join(''); -}; - -tree.outputRuleset = function (env, output, rules) { - var ruleCnt = rules.length, i; - env.tabLevel = (env.tabLevel | 0) + 1; - - // Compressed - if (env.compress) { - output.add('{'); - for (i = 0; i < ruleCnt; i++) { - rules[i].genCSS(env, output); - } - output.add('}'); - env.tabLevel--; - return; - } - - // Non-compressed - var tabSetStr = '\n' + Array(env.tabLevel).join(" "), tabRuleStr = tabSetStr + " "; - if (!ruleCnt) { - output.add(" {" + tabSetStr + '}'); - } else { - output.add(" {" + tabRuleStr); - rules[0].genCSS(env, output); - for (i = 1; i < ruleCnt; i++) { - output.add(tabRuleStr); - rules[i].genCSS(env, output); - } - output.add(tabSetStr + '}'); - } - - env.tabLevel--; -}; - -})(require('./tree')); - -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } - return this; - }, - genCSS: function (env, output) { - output.add("alpha(opacity="); - - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - - output.add(")"); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Anonymous = function (string, index, currentFileInfo, mapLines) { - this.value = string.value || string; - this.index = index; - this.mapLines = mapLines; - this.currentFileInfo = currentFileInfo; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - eval: function () { - return new tree.Anonymous(this.value, this.index, this.currentFileInfo, this.mapLines); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - }, - genCSS: function (env, output) { - output.add(this.value, this.currentFileInfo, this.index, this.mapLines); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - }, - genCSS: function (env, output) { - output.add(this.key + '='); - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - if (this.args) { - this.args = visitor.visitArray(this.args); - } - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - return new tree.Call(this.name, args, this.index, this.currentFileInfo); - }, - - genCSS: function (env, output) { - output.add(this.name + "(", this.currentFileInfo, this.index); - - for(var i = 0; i < this.args.length; i++) { - this.args[i].genCSS(env, output); - if (i + 1 < this.args.length) { - output.add(", "); - } - } - - output.add(")"); - }, - - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; - -var transparentKeyword = "transparent"; - -tree.Color.prototype = { - type: "Color", - eval: function () { return this; }, - luma: function () { return (0.2126 * this.rgb[0] / 255) + (0.7152 * this.rgb[1] / 255) + (0.0722 * this.rgb[2] / 255); }, - - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress, - alpha = tree.fround(env, this.alpha); - - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - if (alpha < 1) { - if (alpha === 0 && this.isTransparentKeyword) { - return transparentKeyword; - } - return "rgba(" + this.rgb.map(function (c) { - return clamp(Math.round(c), 255); - }).concat(clamp(alpha, 1)) - .join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.toRGB(); - - if (compress) { - var splitcolor = color.split(''); - - // Convert color to short format - if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) { - color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5]; - } - } - - return color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var rgb = []; - var alpha = this.alpha * (1 - other.alpha) + other.alpha; - for (var c = 0; c < 3; c++) { - rgb[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(rgb, alpha); - }, - - toRGB: function () { - return toHex(this.rgb); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - return toHex([this.alpha * 255].concat(this.rgb)); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - -tree.Color.fromKeyword = function(keyword) { - keyword = keyword.toLowerCase(); - - if (tree.colors.hasOwnProperty(keyword)) { - // detect named color - return new(tree.Color)(tree.colors[keyword].slice(1)); - } - if (keyword === transparentKeyword) { - var transparent = new(tree.Color)([0, 0, 0], 0); - transparent.isTransparentKeyword = true; - return transparent; - } -}; - -function toHex(v) { - return '#' + v.map(function (c) { - c = clamp(Math.round(c), 255); - return (c < 16 ? '0' : '') + c.toString(16); - }).join(''); -} - -function clamp(v, max) { - return Math.min(Math.max(v, 0), max); -} - -})(require('../tree')); - -(function (tree) { - -tree.Comment = function (value, silent, index, currentFileInfo) { - this.value = value; - this.silent = !!silent; - this.currentFileInfo = currentFileInfo; -}; -tree.Comment.prototype = { - type: "Comment", - genCSS: function (env, output) { - if (this.debugInfo) { - output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index); - } - output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n - }, - toCSS: tree.toCSS, - isSilent: function(env) { - var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced), - isCompressed = env.compress && !this.value.match(/^\/\*!/); - return this.silent || isReference || isCompressed; - }, - eval: function () { return this; }, - markReferenced: function () { - this.isReferenced = true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<' || op === '<='; - case 0: return op === '=' || op === '>=' || op === '=<' || op === '<='; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); - -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - genCSS: function (env, output) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = tree.fround(env, this.value), - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && this.unit.isLength()) { - output.add(strValue); - return; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - output.add(strValue); - this.unit.genCSS(env, output); - }, - toCSS: tree.toCSS, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - /*jshint noempty:false */ - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a = this.unify(), b = other.unify(), - aValue = a.value, bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - if (!b.unit.isEmpty() && a.unit.compare(b.unit) !== 0) { - return -1; - } - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'm', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, targetUnit, derivedConversions = {}, applyUnit; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - applyUnit = function (atomicUnit, denominator) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(applyUnit); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - genCSS: function (env, output) { - if (this.numerator.length >= 1) { - output.add(this.numerator[0]); - } else - if (this.denominator.length >= 1) { - output.add(this.denominator[0]); - } else - if ((!env || !env.strictUnits) && this.backupUnit) { - output.add(this.backupUnit); - } - }, - toCSS: tree.toCSS, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isLength: function () { - return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/)); - }, - - isEmpty: function () { - return this.numerator.length === 0 && this.denominator.length === 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length === 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, result = {}, mapUnit; - - mapUnit = function (atomicUnit) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }; - - for (var groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(mapUnit); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Directive = function (name, value, index, currentFileInfo) { - this.name = name; - - if (Array.isArray(value)) { - this.rules = [new(tree.Ruleset)(null, value)]; - this.rules[0].allowImports = true; - } else { - this.value = value; - } - this.index = index; - this.currentFileInfo = currentFileInfo; - -}; -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - if (this.value) { - this.value = visitor.visit(this.value); - } - }, - genCSS: function (env, output) { - output.add(this.name, this.currentFileInfo, this.index); - if (this.rules) { - tree.outputRuleset(env, output, this.rules); - } else { - output.add(' '); - this.value.genCSS(env, output); - output.add(';'); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var evaldDirective = this; - if (this.rules) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name, null, this.index, this.currentFileInfo); - evaldDirective.rules = [this.rules[0].eval(env)]; - evaldDirective.rules[0].root = true; - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - markReferenced: function () { - var i, rules; - this.isReferenced = true; - if (this.rules) { - rules = this.rules[0].rules; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Element = function (combinator, value, index, currentFileInfo) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - var value = this.value; - this.combinator = visitor.visit(this.combinator); - if (typeof value === "object") { - this.value = visitor.visit(value); - } - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index, - this.currentFileInfo); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env), this.currentFileInfo, this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value === '' && this.combinator.value.charAt(0) === '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - _outputMap: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : ' + ', - '~' : ' ~ ', - '>' : ' > ', - '|' : '|', - '^' : ' ^ ', - '^^' : ' ^^ ' - }, - _outputMapCompressed: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : '+', - '~' : '~', - '>' : '>', - '|' : '|', - '^' : '^', - '^^' : '^^' - }, - genCSS: function (env, output) { - output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - genCSS: function (env, output) { - for(var i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i + 1 < this.value.length) { - output.add(" "); - } - } - }, - toCSS: tree.toCSS, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - this.object_id = tree.Extend.next_id++; - this.parent_ids = [this.object_id]; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; -tree.Extend.next_id = 0; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i, - selectorElements; - - for(i = 0; i < selectors.length; i++) { - selectorElements = selectors[i].elements; - // duplicate the logic in genCSS function inside the selector node. - // future TODO - move both logics into the selector joiner visitor - if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") { - selectorElements[0].combinator.value = ' '; - } - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); - -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined || this.options.inline) { - this.css = !this.options.less || this.options.inline; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - this.path = visitor.visit(this.path); - if (!this.options.inline && this.root) { - this.root = visitor.visit(this.root); - } - }, - genCSS: function (env, output) { - if (this.css) { - output.add("@import ", this.currentFileInfo, this.index); - this.path.genCSS(env, output); - if (this.features) { - output.add(" "); - this.features.genCSS(env, output); - } - output.add(';'); - } - }, - toCSS: tree.toCSS, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - - if (!(path instanceof tree.URL)) { - if (rootpath) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath +pathValue; - } - } - path.value = env.normalizePath(path.value); - } - - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { return []; } - - if (this.options.inline) { - //todo needs to reference css file not import - var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true); - return this.features ? new(tree.Media)([contents], this.features.value) : [contents]; - } else if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" , - index: this.index }; - } - - var variables = env.frames[0].variables(); - for (var k in variables) { - if (variables.hasOwnProperty(k)) { - /*jshint loopfunc:true */ - context[k.slice(1)] = { - value: variables[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message.replace(/["]/g, "'") + "'" , - index: this.index }; - } - if (typeof(result) === 'number') { - return new(tree.Dimension)(result); - } else if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Keyword = function (value) { this.value = value; }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); - -(function (tree) { - -tree.Media = function (value, features, index, currentFileInfo) { - this.index = index; - this.currentFileInfo = currentFileInfo; - - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.rules = [new(tree.Ruleset)(selectors, value)]; - this.rules[0].allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - }, - genCSS: function (env, output) { - output.add('@media ', this.currentFileInfo, this.index); - this.features.genCSS(env, output); - tree.outputRuleset(env, output, this.rules); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)(null, [], this.index, this.currentFileInfo); - if(this.debugInfo) { - this.rules[0].debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.rules[0]); - media.rules = [this.rules[0].eval(env)]; - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env); - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', this.index, this.currentFileInfo), - sels = [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)]; - sels[0].mediaEmpty = true; - return sels; - }, - markReferenced: function () { - var i, rules = this.rules[0].rules; - this.isReferenced = true; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])]; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = (args && args.length) ? args : null; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - if (this.selector) { - this.selector = visitor.visit(this.selector); - } - if (this.arguments) { - this.arguments = visitor.visitArray(this.arguments); - } - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule, - candidates = [], candidate, conditionResult = [], defaultFunc = tree.defaultFunc, - defaultResult, defNone = 0, defTrue = 1, defFalse = 2, count; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - - // To make `default()` function independent of definition order we have two "subpasses" here. - // At first we evaluate each guard *twice* (with `default() == true` and `default() == false`), - // and build candidate list with corresponding flags. Then, when we know all possible matches, - // we make a final decision. - - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - - if (mixin.matchArgs(args, env)) { - candidate = {mixin: mixin, group: defNone}; - - if (mixin.matchCondition) { - for (f = 0; f < 2; f++) { - defaultFunc.value(f); - conditionResult[f] = mixin.matchCondition(args, env); - } - if (conditionResult[0] || conditionResult[1]) { - if (conditionResult[0] != conditionResult[1]) { - candidate.group = conditionResult[1] ? - defTrue : defFalse; - } - - candidates.push(candidate); - } - } - else { - candidates.push(candidate); - } - - match = true; - } - } - - defaultFunc.reset(); - - count = [0, 0, 0]; - for (m = 0; m < candidates.length; m++) { - count[candidates[m].group]++; - } - - if (count[defNone] > 0) { - defaultResult = defFalse; - } else { - defaultResult = defTrue; - if ((count[defTrue] + count[defFalse]) > 1) { - throw { type: 'Runtime', - message: 'Ambiguous use of `default()` found when matching for `' - + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - for (m = 0; m < candidates.length; m++) { - candidate = candidates[m].group; - if ((candidate === defNone) || (candidate === defaultResult)) { - try { - mixin = candidates[m].mixin; - if (!(mixin instanceof tree.mixin.Definition)) { - mixin = new tree.mixin.Definition("", [], mixin.rules, null, false); - mixin.originalRuleset = mixins[m].originalRuleset || mixins[m]; - } - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - } - - if (match) { - if (!this.currentFileInfo || !this.currentFileInfo.reference) { - for (i = 0; i < rules.length; i++) { - rule = rules[i]; - if (rule.markReferenced) { - rule.markReferenced(); - } - } - } - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - }, - format: function (args) { - return this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")"; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1; } - else { return count; } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - if (this.params && this.params.length) { - this.params = visitor.visitArray(this.params); - } - this.rules = visitor.visitArray(this.rules); - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - /*jshint boss:true */ - var frame = new(tree.Ruleset)(null, null), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.prependRule(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) { continue; } - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.prependRule(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.prependRule(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - rules, ruleset; - - frame.prependRule(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules); - ruleset.originalRuleset = this; - ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames))); - if (important) { - ruleset = this.parent.makeImportant.apply(ruleset); - } - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] // the parameter variables - .concat(this.frames) // the parent namespace/mixin frames - .concat(env.frames)))) { // the current environment frames - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (! this.variadic) { - if (argsLength < this.required) { return false; } - if (argsLength > this.params.length) { return false; } - } else { - if (argsLength < (this.required - 1)) { return false; } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('-'); - this.value.genCSS(env, output); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env); - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - a = a.toColor(); - } - if (b instanceof tree.Dimension && a instanceof tree.Color) { - b = b.toColor(); - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - genCSS: function (env, output) { - this.operands[0].genCSS(env, output); - if (this.isSpaced) { - output.add(" "); - } - output.add(this.op); - if (this.isSpaced) { - output.add(" "); - } - this.operands[1].genCSS(env, output); - }, - toCSS: tree.toCSS -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('('); - this.value.genCSS(env, output); - output.add(')'); - }, - toCSS: tree.toCSS, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - genCSS: function (env, output) { - if (!this.escaped) { - output.add(this.quote, this.currentFileInfo, this.index); - } - output.add(this.value); - if (!this.escaped) { - output.add(this.quote); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.merge = merge; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - this.variable = name.charAt && (name.charAt(0) === '@'); -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index); - try { - this.value.genCSS(env, output); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index); - }, - toCSS: tree.toCSS, - eval: function (env) { - var strictMathBypass = false, name = this.name; - if (typeof name !== "string") { - // expand 'primitive' name directly to get - // things faster (~10% for benchmark.less): - name = (name.length === 1) - && (name[0] instanceof tree.Keyword) - ? name[0].value : evalName(env, name); - } - if (name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - return new(tree.Rule)(name, - this.value.eval(env), - this.important, - this.merge, - this.index, this.currentFileInfo, this.inline); - } - catch(e) { - e.index = e.index || this.index; - throw e; - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.merge, - this.index, this.currentFileInfo, this.inline); - } -}; - -function evalName(env, name) { - var value = "", i, n = name.length, - output = {add: function (s) {value += s;}}; - for (i = 0; i < n; i++) { - name[i].eval(env).genCSS(env, output); - } - return value; -} - -})(require('../tree')); - -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - if (this.paths) { - visitor.visitArray(this.paths, true); - } else if (this.selectors) { - this.selectors = visitor.visitArray(this.selectors); - } - if (this.rules && this.rules.length) { - this.rules = visitor.visitArray(this.rules); - } - }, - eval: function (env) { - var thisSelectors = this.selectors, selectors, - selCnt, i, defaultFunc = tree.defaultFunc; - if (thisSelectors && (selCnt = thisSelectors.length)) { - selectors = []; - defaultFunc.error({ - type: "Syntax", - message: "it is currently only allowed in parametric mixin guards," - }); - for (i = 0; i < selCnt; i++) { - selectors.push(thisSelectors[i].eval(env)); - } - defaultFunc.reset(); - } - - var rules = this.rules ? this.rules.slice(0) : null, - ruleset = new(tree.Ruleset)(selectors, rules, this.strictImports), - rule, subRule; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - var envFrames = env.frames; - envFrames.unshift(ruleset); - - // currrent selectors - var envSelectors = env.selectors; - if (!envSelectors) { - env.selectors = envSelectors = []; - } - envSelectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - var rsRules = ruleset.rules, rsRuleCnt = rsRules ? rsRules.length : 0; - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Definition) { - rsRules[i].frames = envFrames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Call) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (i = 0; i < rsRules.length; i++) { - rule = rsRules[i]; - if (! (rule instanceof tree.mixin.Definition)) { - rsRules[i] = rule = rule.eval ? rule.eval(env) : rule; - // for rulesets, check if it is a css guard and can be removed - if (rule instanceof tree.Ruleset && rule.selectors && rule.selectors.length === 1) { - // check if it can be folded in (e.g. & where) - if (rule.selectors[0].isJustParentSelector()) { - rsRules.splice(i--, 1); - // cannot call if there is no selector, so we can just continue - if (!rule.selectors[0].evaldCondition) { - continue; - } - for(var j = 0; j < rule.rules.length; j++) { - subRule = rule.rules[j]; - if (!(subRule instanceof tree.Rule) || !subRule.variable) { - rsRules.splice(++i, 0, subRule); - } - } - } - } - } - } - - // Pop the stack - envFrames.shift(); - envSelectors.shift(); - - if (env.mediaBlocks) { - for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var rules = this.rules, i, importRules; - if (!rules) { return; } - - for (i = 0; i < rules.length; i++) { - if (rules[i] instanceof tree.Import) { - importRules = rules[i].eval(env); - if (importRules && importRules.length) { - rules.splice.apply(rules, [i, 1].concat(importRules)); - i+= importRules.length-1; - } else { - rules.splice(i, 1, importRules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - // lets you call a css selector with a guard - matchCondition: function (args, env) { - var lastSelector = this.selectors[this.selectors.length-1]; - if (!lastSelector.evaldCondition) { - return false; - } - if (lastSelector.condition && - !lastSelector.condition.eval( - new(tree.evalEnv)(env, - env.frames))) { - return false; - } - return true; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (!this._variables) { - this._variables = !this.rules ? {} : this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - return this._variables; - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (!this.rules) { return null; } - - var _Ruleset = tree.Ruleset, _MixinDefinition = tree.mixin.Definition, - filtRules = [], rules = this.rules, cnt = rules.length, - i, rule; - - for (i = 0; i < cnt; i++) { - rule = rules[i]; - if ((rule instanceof _Ruleset) || (rule instanceof _MixinDefinition)) { - filtRules.push(rule); - } - } - - return filtRules; - }, - prependRule: function (rule) { - var rules = this.rules; - if (rules) { rules.unshift(rule); } else { this.rules = [ rule ]; } - }, - find: function (selector, self) { - self = self || this; - var rules = [], match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key]; } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - match = selector.match(rule.selectors[j]); - if (match) { - if (selector.elements.length > match) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(match)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - this._lookups[key] = rules; - return rules; - }, - genCSS: function (env, output) { - var i, j, - ruleNodes = [], - rulesetNodes = [], - rulesetNodeCnt, - debugInfo, // Line number debugging - rule, - path; - - env.tabLevel = (env.tabLevel || 0); - - if (!this.root) { - env.tabLevel++; - } - - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "), - sep; - - for (i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - if (rule.rules || (rule instanceof tree.Media) || rule instanceof tree.Directive || (this.root && rule instanceof tree.Comment)) { - rulesetNodes.push(rule); - } else { - ruleNodes.push(rule); - } - } - - // If this is the root node, we don't render - // a selector, or {}. - if (!this.root) { - debugInfo = tree.debugInfo(env, this, tabSetStr); - - if (debugInfo) { - output.add(debugInfo); - output.add(tabSetStr); - } - - var paths = this.paths, pathCnt = paths.length, - pathSubCnt; - - sep = env.compress ? ',' : (',\n' + tabSetStr); - - for (i = 0; i < pathCnt; i++) { - path = paths[i]; - if (!(pathSubCnt = path.length)) { continue; } - if (i > 0) { output.add(sep); } - - env.firstSelector = true; - path[0].genCSS(env, output); - - env.firstSelector = false; - for (j = 1; j < pathSubCnt; j++) { - path[j].genCSS(env, output); - } - } - - output.add((env.compress ? '{' : ' {\n') + tabRuleStr); - } - - // Compile rules and rulesets - for (i = 0; i < ruleNodes.length; i++) { - rule = ruleNodes[i]; - - // @page{ directive ends up with root elements inside it, a mix of rules and rulesets - // In this instance we do not know whether it is the last property - if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) { - env.lastRule = true; - } - - if (rule.genCSS) { - rule.genCSS(env, output); - } else if (rule.value) { - output.add(rule.value.toString()); - } - - if (!env.lastRule) { - output.add(env.compress ? '' : ('\n' + tabRuleStr)); - } else { - env.lastRule = false; - } - } - - if (!this.root) { - output.add((env.compress ? '}' : '\n' + tabSetStr + '}')); - env.tabLevel--; - } - - sep = (env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr); - rulesetNodeCnt = rulesetNodes.length; - if (rulesetNodeCnt) { - if (ruleNodes.length && sep) { output.add(sep); } - rulesetNodes[0].genCSS(env, output); - for (i = 1; i < rulesetNodeCnt; i++) { - if (sep) { output.add(sep); } - rulesetNodes[i].genCSS(env, output); - } - } - - if (!output.isEmpty() && !env.compress && this.firstRoot) { - output.add('\n'); - } - }, - - toCSS: tree.toCSS, - - markReferenced: function () { - for (var s = 0; s < this.selectors.length; s++) { - this.selectors[s].markReferenced(); - } - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for (i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for (j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length === 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', el.index, el.currentFileInfo)); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for (k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = selector.createDerived([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for (i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length === 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for (i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); - -(function (tree) { - -tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) { - this.elements = elements; - this.extendList = extendList; - this.condition = condition; - this.currentFileInfo = currentFileInfo || {}; - this.isReferenced = isReferenced; - if (!condition) { - this.evaldCondition = true; - } -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - if (this.elements) { - this.elements = visitor.visitArray(this.elements); - } - if (this.extendList) { - this.extendList = visitor.visitArray(this.extendList); - } - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - createDerived: function(elements, extendList, evaldCondition) { - evaldCondition = (evaldCondition != null) ? evaldCondition : this.evaldCondition; - var newSelector = new(tree.Selector)(elements, extendList || this.extendList, null, this.index, this.currentFileInfo, this.isReferenced); - newSelector.evaldCondition = evaldCondition; - newSelector.mediaEmpty = this.mediaEmpty; - return newSelector; - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - olen, i; - - other.CacheElements(); - - olen = other._elements.length; - if (olen === 0 || len < olen) { - return 0; - } else { - for (i = 0; i < olen; i++) { - if (elements[i].value !== other._elements[i]) { - return 0; - } - } - } - - return olen; // return number of matched elements - }, - CacheElements: function(){ - var css = '', len, v, i; - - if( !this._elements ){ - - len = this.elements.length; - for(i = 0; i < len; i++){ - - v = this.elements[i]; - css += v.combinator.value; - - if( !v.value.value ){ - css += v.value; - continue; - } - - if( typeof v.value.value !== "string" ){ - css = ''; - break; - } - css += v.value.value; - } - - this._elements = css.match(/[,&#\.\w-]([\w-]|(\\.))*/g); - - if (this._elements) { - if (this._elements[0] === "&") { - this._elements.shift(); - } - - } else { - this._elements = []; - } - - } - }, - isJustParentSelector: function() { - return !this.mediaEmpty && - this.elements.length === 1 && - this.elements[0].value === '&' && - (this.elements[0].combinator.value === ' ' || this.elements[0].combinator.value === ''); - }, - eval: function (env) { - var evaldCondition = this.condition && this.condition.eval(env), - elements = this.elements, extendList = this.extendList; - - elements = elements && elements.map(function (e) { return e.eval(env); }); - extendList = extendList && extendList.map(function(extend) { return extend.eval(env); }); - - return this.createDerived(elements, extendList, evaldCondition); - }, - genCSS: function (env, output) { - var i, element; - if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") { - output.add(' ', this.currentFileInfo, this.index); - } - if (!this._css) { - //TODO caching? speed comparison? - for(i = 0; i < this.elements.length; i++) { - element = this.elements[i]; - element.genCSS(env, output); - } - } - }, - toCSS: tree.toCSS, - markReferenced: function () { - this.isReferenced = true; - }, - getIsReferenced: function() { - return !this.currentFileInfo.reference || this.isReferenced; - }, - getIsOutput: function() { - return this.evaldCondition; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - eval: function () { return this; } -}; - -})(require('../tree')); - -(function (tree) { - -tree.URL = function (val, currentFileInfo, isEvald) { - this.value = val; - this.currentFileInfo = currentFileInfo; - this.isEvald = isEvald; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add("url("); - this.value.genCSS(env, output); - output.add(")"); - }, - toCSS: tree.toCSS, - eval: function (ctx) { - var val = this.value.eval(ctx), - rootpath; - - if (!this.isEvald) { - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - val.value = ctx.normalizePath(val.value); - - // Add url args if enabled - if (ctx.urlArgs) { - if (!val.value.match(/^\s*data:/)) { - var delimiter = val.value.indexOf('?') === -1 ? '?' : '&'; - var urlArgs = delimiter + ctx.urlArgs; - if (val.value.indexOf('#') !== -1) { - val.value = val.value.replace('#', urlArgs + '#'); - } else { - val.value += urlArgs; - } - } - } - } - - return new(tree.URL)(val, this.currentFileInfo, true); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - genCSS: function (env, output) { - var i; - for(i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i+1 < this.value.length) { - output.add((env && env.compress) ? ',' : ', '); - } - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { - this.name = name; - this.index = index; - this.currentFileInfo = currentFileInfo || {}; -}; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, name = this.name; - - if (name.indexOf('@@') === 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - variable = tree.find(env.frames, function (frame) { - var v = frame.variable(name); - if (v) { - return v.value.eval(env); - } - }); - if (variable) { - this.evaluating = false; - return variable; - } else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); - -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // map - filename to contents of all the files - 'contentsIgnoredChars', // map - filename to lines at the begining of each file to ignore - 'relativeUrls', // option - whether to adjust URL's to be relative - 'rootpath', // option - rootpath to append to URL's - 'strictImports', // option - - 'insecure', // option - whether to allow imports from insecure ssl hosts - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true - 'mime', // browser only - mime type for sheet import - 'useFileCache', // browser only - whether to use the per file session cache - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' - absolute path to the entry file - // 'reference' - whether the file should not be output and only output parts that are referenced - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.contentsIgnoredChars) { this.contentsIgnoredChars = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits', // whether units need to evaluate correctly - 'cleancss', // whether to compress with clean-css - 'sourceMap', // whether to output a source map - 'importMultiple', // whether we are currently importing multiple copies - 'urlArgs' // whether to add args into url tokens - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - tree.evalEnv.prototype.normalizePath = function( path ) { - var - segments = path.split("/").reverse(), - segment; - - path = []; - while (segments.length !== 0 ) { - segment = segments.pop(); - switch( segment ) { - case ".": - break; - case "..": - if ((path.length === 0) || (path[path.length - 1] === "..")) { - path.push( segment ); - } else { - path.pop(); - } - break; - default: - path.push( segment ); - break; - } - } - - return path.join("/"); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - }; - -})(require('./tree')); - -(function (tree) { - - var _visitArgs = { visitDeeper: true }, - _hasIndexed = false; - - function _noop(node) { - return node; - } - - function indexNodeTypes(parent, ticker) { - // add .typeIndex to tree node types for lookup table - var key, child; - for (key in parent) { - if (parent.hasOwnProperty(key)) { - child = parent[key]; - switch (typeof child) { - case "function": - // ignore bound functions directly on tree which do not have a prototype - // or aren't nodes - if (child.prototype && child.prototype.type) { - child.prototype.typeIndex = ticker++; - } - break; - case "object": - ticker = indexNodeTypes(child, ticker); - break; - } - } - } - return ticker; - } - - tree.visitor = function(implementation) { - this._implementation = implementation; - this._visitFnCache = []; - - if (!_hasIndexed) { - indexNodeTypes(tree, 1); - _hasIndexed = true; - } - }; - - tree.visitor.prototype = { - visit: function(node) { - if (!node) { - return node; - } - - var nodeTypeIndex = node.typeIndex; - if (!nodeTypeIndex) { - return node; - } - - var visitFnCache = this._visitFnCache, - impl = this._implementation, - aryIndx = nodeTypeIndex << 1, - outAryIndex = aryIndx | 1, - func = visitFnCache[aryIndx], - funcOut = visitFnCache[outAryIndex], - visitArgs = _visitArgs, - fnName; - - visitArgs.visitDeeper = true; - - if (!func) { - fnName = "visit" + node.type; - func = impl[fnName] || _noop; - funcOut = impl[fnName + "Out"] || _noop; - visitFnCache[aryIndx] = func; - visitFnCache[outAryIndex] = funcOut; - } - - if (func !== _noop) { - var newNode = func.call(impl, node, visitArgs); - if (impl.isReplacing) { - node = newNode; - } - } - - if (visitArgs.visitDeeper && node && node.accept) { - node.accept(this); - } - - if (funcOut != _noop) { - funcOut.call(impl, node); - } - - return node; - }, - visitArray: function(nodes, nonReplacing) { - if (!nodes) { - return nodes; - } - - var cnt = nodes.length, i; - - // Non-replacing - if (nonReplacing || !this._implementation.isReplacing) { - for (i = 0; i < cnt; i++) { - this.visit(nodes[i]); - } - return nodes; - } - - // Replacing - var out = []; - for (i = 0; i < cnt; i++) { - var evald = this.visit(nodes[i]); - if (!evald.splice) { - out.push(evald); - } else if (evald.length) { - this.flatten(evald, out); - } - } - return out; - }, - flatten: function(arr, out) { - if (!out) { - out = []; - } - - var cnt, i, item, - nestedCnt, j, nestedItem; - - for (i = 0, cnt = arr.length; i < cnt; i++) { - item = arr[i]; - if (!item.splice) { - out.push(item); - continue; - } - - for (j = 0, nestedCnt = item.length; j < nestedCnt; j++) { - nestedItem = item[j]; - if (!nestedItem.splice) { - out.push(nestedItem); - } else if (nestedItem.length) { - this.flatten(nestedItem, out); - } - } - } - - return out; - } - }; - -})(require('./tree')); -(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode, - inlineCSS = importNode.options.inline; - - if (!importNode.css || inlineCSS) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - - if (importNode.options.multiple) { - env.importMultiple = true; - } - - this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, imported, fullPath) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - - if (imported && !env.importMultiple) { importNode.skip = imported; } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - importNode.importedFilename = fullPath; - if (!inlineCSS && !importNode.skip) { - new(tree.importVisitor)(importVisitor._importer, subFinish, env) - .run(root); - return; - } - } - - subFinish(); - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree')); -(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1], - paths = [], selectors; - - this.contexts.push(paths); - - if (! rulesetNode.root) { - selectors = rulesetNode.selectors; - if (selectors) { - selectors = selectors.filter(function(selector) { return selector.getIsOutput(); }); - rulesetNode.selectors = selectors.length ? selectors : (selectors = null); - if (selectors) { rulesetNode.joinSelectors(paths, context, selectors); } - } - if (!selectors) { rulesetNode.rules = null; } - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree')); -(function (tree) { - tree.toCSSVisitor = function(env) { - this._visitor = new tree.visitor(this); - this._env = env; - }; - - tree.toCSSVisitor.prototype = { - isReplacing: true, - run: function (root) { - return this._visitor.visit(root); - }, - - visitRule: function (ruleNode, visitArgs) { - if (ruleNode.variable) { - return []; - } - return ruleNode; - }, - - visitMixinDefinition: function (mixinNode, visitArgs) { - return []; - }, - - visitExtend: function (extendNode, visitArgs) { - return []; - }, - - visitComment: function (commentNode, visitArgs) { - if (commentNode.isSilent(this._env)) { - return []; - } - return commentNode; - }, - - visitMedia: function(mediaNode, visitArgs) { - mediaNode.accept(this._visitor); - visitArgs.visitDeeper = false; - - if (!mediaNode.rules.length) { - return []; - } - return mediaNode; - }, - - visitDirective: function(directiveNode, visitArgs) { - if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) { - return []; - } - if (directiveNode.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (this.charset) { - if (directiveNode.debugInfo) { - var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n"); - comment.debugInfo = directiveNode.debugInfo; - return this._visitor.visit(comment); - } - return []; - } - this.charset = true; - } - return directiveNode; - }, - - checkPropertiesInRoot: function(rules) { - var ruleNode; - for(var i = 0; i < rules.length; i++) { - ruleNode = rules[i]; - if (ruleNode instanceof tree.Rule && !ruleNode.variable) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null}; - } - } - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var rule, rulesets = []; - if (rulesetNode.firstRoot) { - this.checkPropertiesInRoot(rulesetNode.rules); - } - if (! rulesetNode.root) { - if (rulesetNode.paths) { - rulesetNode.paths = rulesetNode.paths - .filter(function(p) { - var i; - if (p[0].elements[0].combinator.value === ' ') { - p[0].elements[0].combinator = new(tree.Combinator)(''); - } - for(i = 0; i < p.length; i++) { - if (p[i].getIsReferenced() && p[i].getIsOutput()) { - return true; - } - } - return false; - }); - } - - // Compile rules and rulesets - var nodeRules = rulesetNode.rules, nodeRuleCnt = nodeRules ? nodeRules.length : 0; - for (var i = 0; i < nodeRuleCnt; ) { - rule = nodeRules[i]; - if (rule && rule.rules) { - // visit because we are moving them out from being a child - rulesets.push(this._visitor.visit(rule)); - nodeRules.splice(i, 1); - nodeRuleCnt--; - continue; - } - i++; - } - // accept the visitor to remove rules and refactor itself - // then we can decide now whether we want it or not - if (nodeRuleCnt > 0) { - rulesetNode.accept(this._visitor); - } else { - rulesetNode.rules = null; - } - visitArgs.visitDeeper = false; - - nodeRules = rulesetNode.rules; - if (nodeRules) { - this._mergeRules(nodeRules); - nodeRules = rulesetNode.rules; - } - if (nodeRules) { - this._removeDuplicateRules(nodeRules); - nodeRules = rulesetNode.rules; - } - - // now decide whether we keep the ruleset - if (nodeRules && nodeRules.length > 0 && rulesetNode.paths.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } else { - rulesetNode.accept(this._visitor); - visitArgs.visitDeeper = false; - if (rulesetNode.firstRoot || (rulesetNode.rules && rulesetNode.rules.length > 0)) { - rulesets.splice(0, 0, rulesetNode); - } - } - if (rulesets.length === 1) { - return rulesets[0]; - } - return rulesets; - }, - - _removeDuplicateRules: function(rules) { - if (!rules) { return; } - - // remove duplicates - var ruleCache = {}, - ruleList, rule, i; - - for(i = rules.length - 1; i >= 0 ; i--) { - rule = rules[i]; - if (rule instanceof tree.Rule) { - if (!ruleCache[rule.name]) { - ruleCache[rule.name] = rule; - } else { - ruleList = ruleCache[rule.name]; - if (ruleList instanceof tree.Rule) { - ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)]; - } - var ruleCSS = rule.toCSS(this._env); - if (ruleList.indexOf(ruleCSS) !== -1) { - rules.splice(i, 1); - } else { - ruleList.push(ruleCSS); - } - } - } - } - }, - - _mergeRules: function (rules) { - if (!rules) { return; } - - var groups = {}, - parts, - rule, - key; - - for (var i = 0; i < rules.length; i++) { - rule = rules[i]; - - if ((rule instanceof tree.Rule) && rule.merge) { - key = [rule.name, - rule.important ? "!" : ""].join(","); - - if (!groups[key]) { - groups[key] = []; - } else { - rules.splice(i--, 1); - } - - groups[key].push(rule); - } - } - - Object.keys(groups).map(function (k) { - parts = groups[k]; - - if (parts.length > 1) { - rule = parts[0]; - - rule.value = new (tree.Value)(parts.map(function (p) { - return p.value; - })); - } - }); - } - }; - -})(require('./tree')); -(function (tree) { - /*jshint loopfunc:true */ - - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - var rules = rulesetNode.rules, ruleCnt = rules ? rules.length : 0; - for(i = 0; i < ruleCnt; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rules[i]); - rulesetNode.extendOnEveryPath = true; - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - var paths = rulesetNode.paths; - for(i = 0; i < paths.length; i++) { - var selectorPath = paths[i], - selector = selectorPath[selectorPath.length - 1], - selExtendList = selector.extendList; - - extendList = selExtendList ? selExtendList.slice(0).concat(allSelectorsExtendList) - : allSelectorsExtendList; - - if (extendList) { - extendList = extendList.map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - } - - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if( extend.parent_ids.indexOf( targetExtend.object_id ) >= 0 ){ continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parent_ids = newExtend.parent_ids.concat(targetExtend.parent_ids, extend.parent_ids); - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (rulesetNode.extendOnEveryPath) { continue; } - var extendList = selectorPath[selectorPath.length-1].extendList; - if (extendList && extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator === '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - elementValue1 = elementValue1.value; - elementValue2 = elementValue2.value; - if (elementValue1 instanceof tree.Selector) { - if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) { - return false; - } - for(var i = 0; i currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - newElements = selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)); - - if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) { - path[path.length - 1].elements = - path[path.length - 1].elements.concat(newElements); - } else { - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - newElements - )); - } - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.sourceMapOutput = function (options) { - this._css = []; - this._rootNode = options.rootNode; - this._writeSourceMap = options.writeSourceMap; - this._contentsMap = options.contentsMap; - this._contentsIgnoredCharsMap = options.contentsIgnoredCharsMap; - this._sourceMapFilename = options.sourceMapFilename; - this._outputFilename = options.outputFilename; - this._sourceMapURL = options.sourceMapURL; - if (options.sourceMapBasepath) { - this._sourceMapBasepath = options.sourceMapBasepath.replace(/\\/g, '/'); - } - this._sourceMapRootpath = options.sourceMapRootpath; - this._outputSourceFiles = options.outputSourceFiles; - this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator; - - if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') { - this._sourceMapRootpath += '/'; - } - - this._lineNumber = 0; - this._column = 0; - }; - - tree.sourceMapOutput.prototype.normalizeFilename = function(filename) { - filename = filename.replace(/\\/g, '/'); - - if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) { - filename = filename.substring(this._sourceMapBasepath.length); - if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') { - filename = filename.substring(1); - } - } - return (this._sourceMapRootpath || "") + filename; - }; - - tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) { - - //ignore adding empty strings - if (!chunk) { - return; - } - - var lines, - sourceLines, - columns, - sourceColumns, - i; - - if (fileInfo) { - var inputSource = this._contentsMap[fileInfo.filename]; - - // remove vars/banner added to the top of the file - if (this._contentsIgnoredCharsMap[fileInfo.filename]) { - // adjust the index - index -= this._contentsIgnoredCharsMap[fileInfo.filename]; - if (index < 0) { index = 0; } - // adjust the source - inputSource = inputSource.slice(this._contentsIgnoredCharsMap[fileInfo.filename]); - } - inputSource = inputSource.substring(0, index); - sourceLines = inputSource.split("\n"); - sourceColumns = sourceLines[sourceLines.length-1]; - } - - lines = chunk.split("\n"); - columns = lines[lines.length-1]; - - if (fileInfo) { - if (!mapLines) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column}, - original: { line: sourceLines.length, column: sourceColumns.length}, - source: this.normalizeFilename(fileInfo.filename)}); - } else { - for(i = 0; i < lines.length; i++) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0}, - original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0}, - source: this.normalizeFilename(fileInfo.filename)}); - } - } - } - - if (lines.length === 1) { - this._column += columns.length; - } else { - this._lineNumber += lines.length - 1; - this._column = columns.length; - } - - this._css.push(chunk); - }; - - tree.sourceMapOutput.prototype.isEmpty = function() { - return this._css.length === 0; - }; - - tree.sourceMapOutput.prototype.toCSS = function(env) { - this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null }); - - if (this._outputSourceFiles) { - for(var filename in this._contentsMap) { - if (this._contentsMap.hasOwnProperty(filename)) - { - var source = this._contentsMap[filename]; - if (this._contentsIgnoredCharsMap[filename]) { - source = source.slice(this._contentsIgnoredCharsMap[filename]); - } - this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), source); - } - } - } - - this._rootNode.genCSS(env, this); - - if (this._css.length > 0) { - var sourceMapURL, - sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); - - if (this._sourceMapURL) { - sourceMapURL = this._sourceMapURL; - } else if (this._sourceMapFilename) { - sourceMapURL = this.normalizeFilename(this._sourceMapFilename); - } - - if (this._writeSourceMap) { - this._writeSourceMap(sourceMapContent); - } else { - sourceMapURL = "data:application/json," + encodeURIComponent(sourceMapContent); - } - - if (sourceMapURL) { - this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */"); - } - } - - return this._css.join(''); - }; - -})(require('./tree')); - -// -// browser.js - client-side engine -// -/*global less, window, document, XMLHttpRequest, location */ - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - (location.port && - location.port.length > 0) || - isFileProtocol ? 'development' - : 'production'); - -var logLevel = { - info: 2, - errors: 1, - none: 0 -}; - -// The amount of logging in the javascript console. -// 2 - Information and errors -// 1 - Errors -// 0 - None -// Defaults to 2 -less.logLevel = typeof(less.logLevel) != 'undefined' ? less.logLevel : logLevel.info; - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - if (less.functions.hasOwnProperty(func)) { - less.tree.functions[func] = less.functions[func]; - } - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -var typePattern = /^text\/(x-)?less$/; -var cache = null; -var fileCache = {}; - -function log(str, level) { - if (less.env == 'development' && typeof(console) !== 'undefined' && less.logLevel >= level) { - console.log('less: ' + str); - } -} - -function extractId(href) { - return href.replace(/^[a-z-]+:\/+?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function errorConsole(e, rootHref) { - var template = '{line} {content}'; - var filename = e.filename || rootHref; - var errors = []; - var content = (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - " in " + filename + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n' + - errors.join('\n'); - } else if (e.stack) { - content += e.stack; - } - log(content, logLevel.errors); -} - -function createCSS(styles, sheet, lastModified) { - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If this has already been inserted into the DOM, we may need to replace it - var oldCss = document.getElementById(id); - var keepOldCss = false; - - // Create a new stylesheet node for insertion or (if necessary) replacement - var css = document.createElement('style'); - css.setAttribute('type', 'text/css'); - if (sheet.media) { - css.setAttribute('media', sheet.media); - } - css.id = id; - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - css.appendChild(document.createTextNode(styles)); - - // If new contents match contents of oldCss, don't replace oldCss - keepOldCss = (oldCss !== null && oldCss.childNodes.length > 0 && css.childNodes.length > 0 && - oldCss.firstChild.nodeValue === css.firstChild.nodeValue); - } - - var head = document.getElementsByTagName('head')[0]; - - // If there is no oldCss, just append; otherwise, only append if we need - // to replace oldCss with an updated stylesheet - if (oldCss === null || keepOldCss === false) { - var nextEl = sheet && sheet.nextSibling || null; - if (nextEl) { - nextEl.parentNode.insertBefore(css, nextEl); - } else { - head.appendChild(css); - } - } - if (oldCss && keepOldCss === false) { - oldCss.parentNode.removeChild(oldCss); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.', logLevel.info); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save', logLevel.errors); - } - } -} - -function errorHTML(e, rootHref) { - var id = 'less-error-message:' + extractId(rootHref || ""); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, errors = []; - var filename = e.filename || rootHref; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - '

    ' + '

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This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - mime: env && env.mime, // MIME type of .less files - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (root) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - that.files[path] = root; // Store the root - - callback(root); - - if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, c, index, endIndex, k, mem; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - mem = i += length; - endIndex = i + chunks[j].length - length; - - while (i < endIndex) { - c = input.charCodeAt(i); - if (! (c === 32 || c === 10 || c === 9)) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - chunks = []; - input = str.replace(/\r\n/g, '\n'); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /[^"'`\{\}\/\(\)]+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - level = 0, - match, - chunk = chunks[0], - inParam, - inString; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = i; - - if (!inString && !inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - if (c === '{' && !inString && !inParam) { level ++; - chunk.push(c); - } else if (c === '}' && !inString && !inParam) { level --; - chunk.push(c); - chunks[++j] = chunk = []; - } else if (c === '(' && !inString && !inParam) { - chunk.push(c); - inParam = true; - } else if (c === ')' && !inString && inParam) { - chunk.push(c); - inParam = false; - } else { - if (c === '"' || c === "'" || c === '`') { - if (! inString) { - inString = c; - } else { - inString = inString === c ? false : inString; - } - } - chunk.push(c); - } - } - if (level > 0) { - throw { - type: 'Syntax', - message: "Missing closing `}`", - filename: env.filename - }; - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = []; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false }); - } catch (e) { - lines = input.split('\n'); - line = getLine(e.index); - - for (var n = e.index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - throw { - type: e.type, - message: e.message, - filename: env.filename, - index: e.index, - line: typeof(line) === 'number' ? line + 1 : null, - callLine: e.call && (getLine(e.call) + 1), - callExtract: lines[getLine(e.call)], - stack: e.stack, - column: column, - extract: [ - lines[line - 1], - lines[line], - lines[line + 1] - ] - }; - } - if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - - function getLine(index) { - return index ? (input.slice(0, index).match(/\n/g) || "").length : null; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - name: "ParseError", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function () { callback(error, root) }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - if (k = $(/^[A-Za-z-]+/)) { return new(tree.Keyword)(k) } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, args, index = i; - - if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return; - - name = name[1].toLowerCase(); - - if (name === 'url') { return null } - else { i += name.length } - - if (name === 'alpha') { return $(this.alpha) } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; - if (! $(')')) throw new(Error)("missing closing ) for url()"); - - return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - dataURI: function () { - var obj; - - if ($(/^data:/)) { - obj = {}; - obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; - obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; - obj.base64 = $(/^;\s*base64/) || ''; - obj.data = $(/^,\s*[^)]+/); - - if (obj.data) { return obj } - } - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i); - - if (s !== '.' && s !== '#') { return } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(c, e)); - c = $('>'); - } - $('(') && (args = $(this.entities.arguments)) && $(')'); - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index); - } - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value; - - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { - name = match[1]; - - while (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - if (value = $(this.expression)) { - params.push({ name: param.name, value: value }); - } else { - throw new(Error)("Expected value"); - } - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - if (! $(',')) { break } - } - if (! $(')')) throw new(Error)("Expected )"); - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - if (! $(')')) throw new(Error)("missing closing ) for alpha()"); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c; - - c = $(this.combinator); - e = $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || $('*') || $(this.attribute) || $(/^\([^)@]+\)/); - - if (e) { return new(tree.Element)(c, e) } - - if (c.value && c.value[0] === '&') { - return new(tree.Element)(c, null); - } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~') { - i++; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(c); - } else if (c === '&') { - match = '&'; - i++; - if(input.charAt(i) === ' ') { - match = '& '; - } - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(match); - } else if (c === ':' && input.charAt(i + 1) === ':') { - i += 2; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)('::'); - } else if (input.charAt(i - 1) === ' ') { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match; - save(); - - if (match = /^([.#: \w-]+)[\s\n]*\{/.exec(chunks[j])) { - i += match[0].length - 1; - selectors = [new(tree.Selector)([new(tree.Element)(null, match[1])])]; - } else { - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - } - - if (selectors.length > 0 && (rules = $(this.block))) { - return new(tree.Ruleset)(selectors, rules); - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path; - if ($(/^@import\s+/) && - (path = $(this.entities.quoted) || $(this.entities.url)) && - $(';')) { - return new(tree.Import)(path, imports); - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, types; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import'])) { - return value; - } else if (name = $(/^@media|@page|@-[-a-z]+/)) { - types = ($(/^[^{]+/) || '').trim(); - if (rules = $(this.block)) { - return new(tree.Directive)(name + " " + types, rules); - } - } else if (name = $(/^@[-a-z]+/)) { - if (name === '@font-face') { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while ((op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (typeof(window) !== 'undefined' /* browser */ || typeof(exports) === 'undefined' /* rhino */) { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (path.charAt(0) !== '/' && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math.round(number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math.round(n); - } else { - throw { - error: "RuntimeError", - message: "math functions take numbers as parameters" - }; - } - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('less/tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index) { - this.name = name; - this.args = args; - this.index = index; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { message: "error evaluating function `" + this.name + "`", - index: this.index }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('less/tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else if (rgb.length == 8) { - this.alpha = parseInt(rgb.substring(0,2), 16) / 255.0; - this.rgb = rgb.substr(2).match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - } -}; - - -})(require('less/tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - env.frames.unshift(this); - this.ruleset = this.ruleset && this.ruleset.eval(env); - env.frames.shift(); - return this; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Element = function (combinator, value) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - this.value = value ? value.trim() : ""; -}; -tree.Element.prototype.toCSS = function (env) { - return this.combinator.toCSS(env || {}) + this.value; -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else if (value === '& ') { - this.value = '& '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - '&' : '', - '& ' : ' ', - ':' : ' :', - '::': '::', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('less/tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(' '); - } -}; - -})(require('less/tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports) { - var that = this; - - this._path = path; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (root) { - if (! root) { - throw new(Error)("Error parsing " + that.path); - } - that.root = root; - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function () { - if (this.css) { - return "@import " + this._path.toCSS() + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return ruleset.rules; - } - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('less/tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value } -}; - -})(require('less/tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, args, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(args, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments).rules); - match = true; - } catch (e) { - throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; - } - } - } - if (match) { - return rules; - } else { - throw { message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index }; - } - } - } - throw { message: this.selector.toCSS().trim() + " is undefined", - index: this.index }; - } -}; - -tree.mixin.Definition = function (name, params, rules) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - eval: function (env, args) { - var frame = new(tree.Ruleset)(null, []), context, _arguments = []; - - for (var i = 0, val; i < this.params.length; i++) { - if (this.params[i].name) { - if (val = (args && args[i]) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); - } else { - throw { message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push(args[i] || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (argsLength < this.required) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return v.value || v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + ";"; - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); - - ruleset.root = this.root; - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > 1) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - rule; - - if (! this.root) { - if (context.length === 0) { - paths = this.selectors.map(function (s) { return [s] }); - } else { - this.joinSelectors( paths, context, this.selectors ); - } - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); - css.push(selector, - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function( paths, context, selectors ) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function( paths, context, selector ) { - var before = [], after = [], beforeElements = [], afterElements = [], hasParentSelector = false, el; - - for (var i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.combinator.value[0] === '&') { - hasParentSelector = true; - } - if(!hasParentSelector) { - beforeElements.push(el); - } else { - afterElements.push(el); - } - } - - if(!hasParentSelector) { - afterElements = beforeElements; - beforeElements = []; - } - - if(beforeElements.length > 0) { - before.push(new (tree.Selector)(beforeElements)); - } - if(afterElements.length > 0) { - after.push(new (tree.Selector)(afterElements)); - } - - for (var c = 0; c < context.length; c++) { - paths.push(before.concat(context[c]).concat(after)); - } - } -}; -})(require('less/tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; - if (this.elements[0].combinator.value === "") { - this.elements[0].combinator.value = ' '; - } -}; -tree.Selector.prototype.match = function (other) { - if (this.elements[0].value === other.elements[0].value) { - return true; - } else { - return false; - } -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - return this._css = this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); -}; - -})(require('less/tree')); -(function (tree) { - -tree.URL = function (val, paths) { - if (val.data) { - this.attrs = val; - } else { - // Add the base path if the URL is relative and we are in the browser - if (!/^(?:https?:\/|file:\/|data:\/)?\//.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') { - val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - this.value = val; - this.paths = paths; - } -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data - : this.value.toCSS()) + ")"; - }, - eval: function (ctx) { - return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Variable = function (name, index) { this.name = name, this.index = index }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { message: "variable " + name + " is undefined", - index: this.index }; - } - } -}; - -})(require('less/tree')); -require('less/tree').find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -require('less/tree').jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; -var name; - -function loadStyleSheet(sheet, callback, reload, remaining) { - var sheetName = name.slice(0, name.lastIndexOf('/') + 1) + sheet.href; - var input = readFile(sheetName); - var parser = new less.Parser(); - parser.parse(input, function (e, root) { - if (e) { - print("Error: " + e); - quit(1); - } - callback(root, sheet, { local: false, lastModified: 0, remaining: remaining }); - }); - - // callback({}, sheet, { local: true, remaining: remaining }); -} - -function writeFile(filename, content) { - var fstream = new java.io.FileWriter(filename); - var out = new java.io.BufferedWriter(fstream); - out.write(content); - out.close(); -} - -// Command line integration via Rhino -(function (args) { - name = args[0]; - var output = args[1]; - - if (!name) { - print('No files present in the fileset; Check your pattern match in build.xml'); - quit(1); - } - path = name.split("/");path.pop();path=path.join("/") - - var input = readFile(name); - - if (!input) { - print('lesscss: couldn\'t open file ' + name); - quit(1); - } - - var result; - var parser = new less.Parser(); - parser.parse(input, function (e, root) { - if (e) { - quit(1); - } else { - result = root.toCSS(); - if (output) { - writeFile(output, result); - print("Written to " + output); - } else { - print(result); - } - quit(0); - } - }); - print("done"); -}(arguments)); diff --git a/awx/ui/static/lib/less.js/dist/less-rhino-1.1.5.js b/awx/ui/static/lib/less.js/dist/less-rhino-1.1.5.js deleted file mode 100644 index e755f63102..0000000000 --- a/awx/ui/static/lib/less.js/dist/less-rhino-1.1.5.js +++ /dev/null @@ -1,2481 +0,0 @@ -// -// Stub out `require` in rhino -// -function require(arg) { - return less[arg.split('/')[1]]; -}; - - -// ecma-5.js -// -// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License -// -- tlrobinson Tom Robinson -// dantman Daniel Friesen - -// -// Array -// -if (!Array.isArray) { - Array.isArray = function(obj) { - return Object.prototype.toString.call(obj) === "[object Array]" || - (obj instanceof Array); - }; -} -if (!Array.prototype.forEach) { - Array.prototype.forEach = function(block, thisObject) { - var len = this.length >>> 0; - for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - less = {}; - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'rhino'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - mime: env && env.mime, // MIME type of .less files - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (root) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - that.files[path] = root; // Store the root - - callback(root); - - if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, c, index, endIndex, k, mem; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - mem = i += length; - endIndex = i + chunks[j].length - length; - - while (i < endIndex) { - c = input.charCodeAt(i); - if (! (c === 32 || c === 10 || c === 9)) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - chunks = []; - input = str.replace(/\r\n/g, '\n'); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /[^"'`\{\}\/\(\)]+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - level = 0, - match, - chunk = chunks[0], - inParam, - inString; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = i; - - if (!inString && !inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - if (c === '{' && !inString && !inParam) { level ++; - chunk.push(c); - } else if (c === '}' && !inString && !inParam) { level --; - chunk.push(c); - chunks[++j] = chunk = []; - } else if (c === '(' && !inString && !inParam) { - chunk.push(c); - inParam = true; - } else if (c === ')' && !inString && inParam) { - chunk.push(c); - inParam = false; - } else { - if (c === '"' || c === "'" || c === '`') { - if (! inString) { - inString = c; - } else { - inString = inString === c ? false : inString; - } - } - chunk.push(c); - } - } - if (level > 0) { - throw { - type: 'Syntax', - message: "Missing closing `}`", - filename: env.filename - }; - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = []; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false }); - } catch (e) { - lines = input.split('\n'); - line = getLine(e.index); - - for (var n = e.index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - throw { - type: e.type, - message: e.message, - filename: env.filename, - index: e.index, - line: typeof(line) === 'number' ? line + 1 : null, - callLine: e.call && (getLine(e.call) + 1), - callExtract: lines[getLine(e.call)], - stack: e.stack, - column: column, - extract: [ - lines[line - 1], - lines[line], - lines[line + 1] - ] - }; - } - if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - - function getLine(index) { - return index ? (input.slice(0, index).match(/\n/g) || "").length : null; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - name: "ParseError", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function () { callback(error, root) }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { return new(tree.Keyword)(k) } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, args, index = i; - - if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return; - - name = name[1].toLowerCase(); - - if (name === 'url') { return null } - else { i += name.length } - - if (name === 'alpha') { return $(this.alpha) } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; - if (! $(')')) throw new(Error)("missing closing ) for url()"); - - return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - dataURI: function () { - var obj; - - if ($(/^data:/)) { - obj = {}; - obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; - obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; - obj.base64 = $(/^;\s*base64/) || ''; - obj.data = $(/^,\s*[^)]+/); - - if (obj.data) { return obj } - } - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i); - - if (s !== '.' && s !== '#') { return } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - $('(') && (args = $(this.entities.arguments)) && $(')'); - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index); - } - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value; - - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { - name = match[1]; - - while (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - if (value = $(this.expression)) { - params.push({ name: param.name, value: value }); - } else { - throw new(Error)("Expected value"); - } - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - if (! $(',')) { break } - } - if (! $(')')) throw new(Error)("Expected )"); - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - if (! $(')')) throw new(Error)("missing closing ) for alpha()"); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c; - - c = $(this.combinator); - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || - $('*') || $(this.attribute) || $(/^\([^)@]+\)/); - - if (e) { return new(tree.Element)(c, e, i) } - - if (c.value && c.value.charAt(0) === '&') { - return new(tree.Element)(c, null, i); - } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~') { - i++; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(c); - } else if (c === '&') { - match = '&'; - i++; - if(input.charAt(i) === ' ') { - match = '& '; - } - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(match); - } else if (c === ':' && input.charAt(i + 1) === ':') { - i += 2; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)('::'); - } else if (input.charAt(i - 1) === ' ') { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match; - save(); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - return new(tree.Ruleset)(selectors, rules); - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path; - if ($(/^@import\s+/) && - (path = $(this.entities.quoted) || $(this.entities.url)) && - $(';')) { - return new(tree.Import)(path, imports); - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, types; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import'])) { - return value; - } else if (name = $(/^@media|@page/) || $(/^@(?:-webkit-|-moz-)?keyframes/)) { - types = ($(/^[^{]+/) || '').trim(); - if (rules = $(this.block)) { - return new(tree.Directive)(name + " " + types, rules); - } - } else if (name = $(/^@[-a-z]+/)) { - if (name === '@font-face') { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while ((op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (path.charAt(0) !== '/' && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math.round(number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math.round(n); - } else { - throw { - error: "RuntimeError", - message: "math functions take numbers as parameters" - }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index) { - this.name = name; - this.args = args; - this.index = index; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { message: "error evaluating function `" + this.name + "`", - index: this.index }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - env.frames.unshift(this); - this.ruleset = this.ruleset && this.ruleset.eval(env); - env.frames.shift(); - return this; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - this.value = value ? value.trim() : ""; - this.index = index; -}; -tree.Element.prototype.toCSS = function (env) { - return this.combinator.toCSS(env || {}) + this.value; -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else if (value === '& ') { - this.value = '& '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - '&' : '', - '& ' : ' ', - ':' : ' :', - '::': '::', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports) { - var that = this; - - this._path = path; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css(\?.*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (root) { - if (! root) { - throw new(Error)("Error parsing " + that.path); - } - that.root = root; - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function () { - if (this.css) { - return "@import " + this._path.toCSS() + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, args, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(args, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments).rules); - match = true; - } catch (e) { - throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; - } - } - } - if (match) { - return rules; - } else { - throw { message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index }; - } - } - } - throw { message: this.selector.toCSS().trim() + " is undefined", - index: this.index }; - } -}; - -tree.mixin.Definition = function (name, params, rules) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - eval: function (env, args) { - var frame = new(tree.Ruleset)(null, []), context, _arguments = []; - - for (var i = 0, val; i < this.params.length; i++) { - if (this.params[i].name) { - if (val = (args && args[i]) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); - } else { - throw { message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push(args[i] || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (argsLength < this.required) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return v.value || v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + ";"; - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); - - ruleset.root = this.root; - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - rule; - - if (! this.root) { - if (context.length === 0) { - paths = this.selectors.map(function (s) { return [s] }); - } else { - this.joinSelectors( paths, context, this.selectors ); - } - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); - css.push(selector, - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - var before = [], after = [], beforeElements = [], - afterElements = [], hasParentSelector = false, el; - - for (var i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.combinator.value.charAt(0) === '&') { - hasParentSelector = true; - } - if (hasParentSelector) afterElements.push(el); - else beforeElements.push(el); - } - - if (! hasParentSelector) { - afterElements = beforeElements; - beforeElements = []; - } - - if (beforeElements.length > 0) { - before.push(new(tree.Selector)(beforeElements)); - } - - if (afterElements.length > 0) { - after.push(new(tree.Selector)(afterElements)); - } - - for (var c = 0; c < context.length; c++) { - paths.push(before.concat(context[c]).concat(after)); - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; - if (this.elements[0].combinator.value === "") { - this.elements[0].combinator.value = ' '; - } -}; -tree.Selector.prototype.match = function (other) { - var len = this.elements.length, - olen = other.elements.length, - max = Math.min(len, olen); - - if (len < olen) { - return false; - } else { - for (var i = 0; i < max; i++) { - if (this.elements[i].value !== other.elements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - return this._css = this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, paths) { - if (val.data) { - this.attrs = val; - } else { - // Add the base path if the URL is relative and we are in the browser - if (!/^(?:https?:\/\/|file:\/\/|data:)?/.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') { - val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - this.value = val; - this.paths = paths; - } -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data - : this.value.toCSS()) + ")"; - }, - eval: function (ctx) { - return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index) { this.name = name, this.index = index }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { message: "variable " + name + " is undefined", - index: this.index }; - } - } -}; - -})(require('../tree')); -require('./tree').find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -require('./tree').jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; -var name; - -function loadStyleSheet(sheet, callback, reload, remaining) { - var sheetName = name.slice(0, name.lastIndexOf('/') + 1) + sheet.href; - var input = readFile(sheetName); - var parser = new less.Parser(); - parser.parse(input, function (e, root) { - if (e) { - print("Error: " + e); - quit(1); - } - callback(root, sheet, { local: false, lastModified: 0, remaining: remaining }); - }); - - // callback({}, sheet, { local: true, remaining: remaining }); -} - -function writeFile(filename, content) { - var fstream = new java.io.FileWriter(filename); - var out = new java.io.BufferedWriter(fstream); - out.write(content); - out.close(); -} - -// Command line integration via Rhino -(function (args) { - name = args[0]; - var output = args[1]; - - if (!name) { - print('No files present in the fileset; Check your pattern match in build.xml'); - quit(1); - } - path = name.split("/");path.pop();path=path.join("/") - - var input = readFile(name); - - if (!input) { - print('lesscss: couldn\'t open file ' + name); - quit(1); - } - - var result; - var parser = new less.Parser(); - parser.parse(input, function (e, root) { - if (e) { - quit(1); - } else { - result = root.toCSS(); - if (output) { - writeFile(output, result); - print("Written to " + output); - } else { - print(result); - } - quit(0); - } - }); - print("done"); -}(arguments)); diff --git a/awx/ui/static/lib/less.js/dist/less-rhino-1.3.1.js b/awx/ui/static/lib/less.js/dist/less-rhino-1.3.1.js deleted file mode 100644 index 1ebe0ea4b6..0000000000 --- a/awx/ui/static/lib/less.js/dist/less-rhino-1.3.1.js +++ /dev/null @@ -1,3725 +0,0 @@ -// -// Stub out `require` in rhino -// -function require(arg) { - return less[arg.split('/')[1]]; -}; - - -// ecma-5.js -// -// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License -// -- tlrobinson Tom Robinson -// dantman Daniel Friesen - -// -// Array -// -if (!Array.isArray) { - Array.isArray = function(obj) { - return Object.prototype.toString.call(obj) === "[object Array]" || - (obj instanceof Array); - }; -} -if (!Array.prototype.forEach) { - Array.prototype.forEach = function(block, thisObject) { - var len = this.length >>> 0; - for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - if (typeof(window) === 'undefined') { less = {} } - else { less = window.less = {} } - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'node'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed arround by reference. - var env = env || { }; - if (!env.contents) { env.contents={}; } // env.contents must be passed arround with top env - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - mime: env && env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (e, root) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - - var imported = path in that.files; - - that.files[path] = root; // Store the root - - if (e && !that.error) { that.error = e } - - callback(e, root, imported); - - if (that.queue.length === 0) { finish(e) } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - function isWhitespace(c) { - // Could change to \s? - var code = c.charCodeAt(0); - return code === 32 || code === 10 || code === 9; - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, index, k; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - endIndex = i + chunks[j].length, - mem = i += length; - - while (i < endIndex) { - if (! isWhitespace(input.charAt(i))) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - throw { index: i, type: type || 'Syntax', message: msg }; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - function getInput(e, env) { - if (e.filename && env.filename && (e.filename !== env.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, input) { - for (var n = index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function getFileName(e) { - if(less.mode === 'browser' || less.mode === 'rhino') - return e.filename; - else - return require('path').resolve(e.filename); - } - - function getDebugInfo(index, inputStream, e) { - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: getFileName(e) - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input).line + 1); - this.callExtract = lines[getLocation(e.call, input).line]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - switch (c) { - case '{': if (! inParam) { level ++; chunk.push(c); break } - case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } - case '(': if (! inParam) { inParam = true; chunk.push(c); break } - case ')': if ( inParam) { inParam = false; chunk.push(c); break } - default: chunk.push(c); - } - } - if (level > 0) { - error = new(LessError)({ - index: i, - type: 'Parse', - message: "missing closing `}`", - filename: env.filename - }, env); - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - if (error) { - return callback(error); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = [], importError; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false, dumpLineNumbers: env.dumpLineNumbers }); - } catch (e) { - throw new(LessError)(e, env); - } - - if ((importError = parser.imports.error)) { // Check if there was an error during importing - if (importError instanceof LessError) throw importError; - else throw new(LessError)(importError, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('./cssmin').compressor.cssmin(css); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function (e) { - if (e) callback(e); - else callback(null, root); - }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null } - else { i += name.length } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index, env.filename) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.ratio) || - $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.filename); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var name, curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.filename); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn|dpi|dpcm|dppx|rem|vw|vh|vmin|vm|ch)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A Ratio - // - // 16/9 - // - ratio: function () { - var value, c = input.charCodeAt(i); - if (c > 57 || c < 48) return; - - if (value = $(/^(\d+\/\d+)/)) { - return new(tree.Ratio)(value[1]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - save(); - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - - restore(); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args = [], arg, index = i, s = input.charAt(i), name, value, important = false; - - if (s !== '.' && s !== '#') { return } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - if ($('(')) { - while (arg = $(this.expression)) { - value = arg; - name = null; - - // Variable - if (arg.value.length == 1) { - var val = arg.value[0]; - if (val instanceof tree.Variable) { - if ($(':')) { - if (value = $(this.expression)) { - name = val.name; - } else { - throw new(Error)("Expected value"); - } - } - } - } - - args.push({ name: name, value: value }); - - if (! $(',')) { break } - } - if (! $(')')) throw new(Error)("Expected )"); - } - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.filename, important); - } - - restore(); - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - do { - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - variadic = true; - break; - } else if (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - value = expect(this.expression, 'expected expression'); - params.push({ name: param.name, value: value }); - } else if ($(/^\.{3}/)) { - params.push({ name: param.name, variadic: true }); - variadic = true; - break; - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - } else { - break; - } - } while ($(',')) - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^)@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(') && (v = ($(this.entities.variableCurly) || $(this.entities.variable))) && $(')')) { - e = new(tree.Paren)(v); - } - } - - if (e) { return new(tree.Element)(c, e, i) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~') { - i++; - while (input.charAt(i).match(/\s/)) { i++ } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - // depreciated, will be removed soon - if ($('(')) { - sel = $(this.entity); - expect(')'); - return new(tree.Selector)([new(tree.Element)('', sel, i)]); - } - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[A-Za-z][A-Za-z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^(?:[_A-Za-z0-9-]|\\.)+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match, debugInfo; - save(); - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) - ruleset.debugInfo = debugInfo; - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import(?:-(once))?\s+/); - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - return new(tree.Import)(path, imports, features, (dir[1] === 'once'), index); - } - } - - restore(); - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.entity); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features); - if(env.dumpLineNumbers) - media.debugInfo = debugInfo; - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, identifier, e, nodes, nonVendorSpecificName, - hasBlock, hasIdentifier; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - } - - if (hasIdentifier) { - name += " " + ($(/^[^{]+/) || '').trim(); - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else { - if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - - restore(); - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (!isWhitespace(input.charAt(i - 1)) && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-z0-9-]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (!/^([a-z-]+:)?\//.test(path) && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - // __ Now using the hack of passing a ref to top parser's content cache in the 1st arg. __ - loadStyleSheet({ href: path, title: path, type: env.mime, contents: env.contents }, function (e) { - if (e && typeof(env.errback) === "function") { - env.errback.call(null, path, paths, callback, env); - } else { - callback.apply(null, arguments); - } - }, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round((0.2126 * (color.rgb[0]/255) + - 0.7152 * (color.rgb[1]/255) + - 0.0722 * (color.rgb[2]/255)) - * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = threshold.value; - } - if (((0.2126 * (color.rgb[0]/255) + 0.7152 * (color.rgb[1]/255) + 0.0722 * (color.rgb[2]/255)) * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(number(n).toFixed(fraction), n.unit); - } else if (typeof(n) === 'number') { - return n.toFixed(fraction); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - ceil: function (n) { - return this._math('ceil', n); - }, - floor: function (n) { - return this._math('floor', n); - }, - _math: function (fn, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math[fn](number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math[fn](n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False; - }, - ispercentage: function (n) { - return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False; - }, - isem: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - - /* Blending modes */ - - multiply: function(color1, color2) { - var r = color1.rgb[0] * color2.rgb[0] / 255; - var g = color1.rgb[1] * color2.rgb[1] / 255; - var b = color1.rgb[2] * color2.rgb[2] / 255; - return this.rgb(r, g, b); - }, - screen: function(color1, color2) { - var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - overlay: function(color1, color2) { - var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - softlight: function(color1, color2) { - var t = color2.rgb[0] * color1.rgb[0] / 255; - var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255; - t = color2.rgb[1] * color1.rgb[1] / 255; - var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255; - t = color2.rgb[2] * color1.rgb[2] / 255; - var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255; - return this.rgb(r, g, b); - }, - hardlight: function(color1, color2) { - var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255; - var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255; - var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - difference: function(color1, color2) { - var r = Math.abs(color1.rgb[0] - color2.rgb[0]); - var g = Math.abs(color1.rgb[1] - color2.rgb[1]); - var b = Math.abs(color1.rgb[2] - color2.rgb[2]); - return this.rgb(r, g, b); - }, - exclusion: function(color1, color2) { - var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255; - var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255; - var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - average: function(color1, color2) { - var r = (color1.rgb[0] + color2.rgb[0]) / 2; - var g = (color1.rgb[1] + color2.rgb[1]) / 2; - var b = (color1.rgb[2] + color2.rgb[2]) / 2; - return this.rgb(r, g, b); - }, - negation: function(color1, color2) { - var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]); - var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]); - var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]); - return this.rgb(r, g, b); - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - // 'transparent':'rgba(0,0,0,0)', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, filename) { - this.name = name; - this.args = args; - this.index = index; - this.filename = filename; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.filename }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS(env) }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype.eval = function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - }, - - // TODO: Perform unit conversion before comparing - compare: function (other) { - if (other instanceof tree.Dimension) { - if (other.value > this.value) { - return -1; - } else if (other.value < this.value) { - return 1; - } else { - return 0; - } - } else { - return -1; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - var evaldDirective = this; - if (this.ruleset) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name); - evaldDirective.ruleset = this.ruleset.eval(env); - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype.eval = function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); -}; -tree.Element.prototype.toCSS = function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value == '' && this.combinator.value.charAt(0) == '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports, features, once, index) { - var that = this; - - this.once = once; - this.index = index; - this._path = path; - this.features = features && new(tree.Value)(features); - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css(\?.*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (e, root, imported) { - if (e) { e.index = index } - if (imported && that.once) that.skip = imported; - that.root = root || new(tree.Ruleset)([], []); - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - return "@import " + this._path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) return []; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.Media = function (value, features) { - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.ruleset = new(tree.Ruleset)(selectors, value); - this.ruleset.allowImports = true; -}; -tree.Media.prototype = { - toCSS: function (ctx, env) { - var features = this.features.toCSS(env); - - this.ruleset.root = (ctx.length === 0 || ctx[0].multiMedia); - return '@media ' + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - }, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var blockIndex = env.mediaBlocks.length; - env.mediaPath.push(this); - env.mediaBlocks.push(this); - - var media = new(tree.Media)([], []); - if(this.debugInfo) { - this.ruleset.debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - media.features = this.features.eval(env); - - env.frames.unshift(this.ruleset); - media.ruleset = this.ruleset.eval(env); - env.frames.shift(); - - env.mediaBlocks[blockIndex] = media; - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env) - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', 0); - return [new(tree.Selector)([el])]; - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.ruleset = new(tree.Ruleset)(selectors.slice(0), [this.ruleset]); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, filename, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.filename = filename; - this.important = important; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, args, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(args, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments, this.important).rules); - match = true; - } catch (e) { - throw { message: e.message, index: this.index, filename: this.filename, stack: e.stack }; - } - } - } - if (match) { - return rules; - } else { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index, filename: this.filename }; - } - } - } - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.filename }; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - evalParams: function (env, args) { - var frame = new(tree.Ruleset)(null, []), varargs, arg; - - for (var i = 0, val, name; i < this.params.length; i++) { - arg = args && args[i] - - if (arg && arg.name) { - frame.rules.unshift(new(tree.Rule)(arg.name, arg.value.eval(env))); - args.splice(i, 1); - i--; - continue; - } - - if (name = this.params[i].name) { - if (this.params[i].variadic && args) { - varargs = []; - for (var j = i; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else if (val = (arg && arg.value) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(name, val.eval(env))); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - return frame; - }, - eval: function (env, args, important) { - var frame = this.evalParams(env, args), context, _arguments = [], rules, start; - - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push((args[i] && args[i].value) || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.rules.map(function (r) { - return new(tree.Rule)(r.name, r.value, '!important', r.index); - }) : this.rules.slice(0); - - return new(tree.Ruleset)(null, rules).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (! this.variadic) { - if (argsLength < this.required) { return false } - if (argsLength > this.params.length) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - } - - if (this.condition && !this.condition.eval({ - frames: [this.evalParams(env, args)].concat(env.frames) - })) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - toCSS: function (env) { - return '(' + this.value.toCSS(env) + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return ('value' in v) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ratio = function (value) { - this.value = value; -}; -tree.Ratio.prototype = { - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, - this.value.eval(context), - this.important, - this.index, this.inline); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules = []; - - ruleset.root = this.root; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - rules = rules.concat(ruleset.rules[i].eval(env)); - } else { - rules.push(ruleset.rules[i]); - } - } - ruleset.rules = rules; - rules = []; - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - rules = rules.concat(ruleset.rules[i].eval(env)); - } else { - rules.push(ruleset.rules[i]); - } - } - ruleset.rules = rules; - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - if (env.mediaBlocks) { - for(var i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - _rules = [], // - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - debugInfo, // Line number debugging - rule; - - if (! this.root) { - this.joinSelectors(paths, context, this.selectors); - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive) || (rule instanceof tree.Media)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - debugInfo = tree.debugInfo(env, this); - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : ',\n'); - - // Remove duplicates - for (var i = rules.length - 1; i >= 0; i--) { - if (_rules.indexOf(rules[i]) === -1) { - _rules.unshift(rules[i]); - } - } - rules = _rules; - - css.push(debugInfo + selector + - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for(i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for(j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length == 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0)); //new Element(el.Combinator, "")); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for(k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = new(tree.Selector)(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = new(tree.Selector)([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, 0)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for(i = 0; i < newSelectors.length; i++) { - paths.push(newSelectors[i]); - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length == 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for(i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = new(tree.Selector)(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; -}; -tree.Selector.prototype.match = function (other) { - var len = this.elements.length, - olen = other.elements.length, - max = Math.min(len, olen); - - if (len < olen) { - return false; - } else { - for (var i = 0; i < max; i++) { - if (this.elements[i].value !== other.elements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.eval = function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - })); -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - if (this.elements[0].combinator.value === "") { - this._css = ' '; - } else { - this._css = ''; - } - - this._css += this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); - - return this._css; -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, paths) { - this.value = val; - this.paths = paths; -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + this.value.toCSS() + ")"; - }, - eval: function (ctx) { - var val = this.value.eval(ctx); - - // Add the base path if the URL is relative and we are in the browser - if (typeof window !== 'undefined' && typeof val.value === "string" && !/^(?:[a-z-]+:|\/)/.test(val.value) && this.paths.length > 0) { - val.value = this.paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - - return new(tree.URL)(val, this.paths); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.file, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.debugInfo = function(env, ctx) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx)+tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:"' + ctx.debugInfo.fileName + '";}line{font-family:"' + ctx.debugInfo.lineNumber + '";}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -var name; - -function loadStyleSheet(sheet, callback, reload, remaining) { - var endOfPath = Math.max(name.lastIndexOf('/'), name.lastIndexOf('\\')), - sheetName = name.slice(0, endOfPath + 1) + sheet.href, - contents = sheet.contents || {}, - input = readFile(sheetName); - - contents[sheetName] = input; - - var parser = new less.Parser({ - paths: [sheet.href.replace(/[\w\.-]+$/, '')], - contents: contents - }); - parser.parse(input, function (e, root) { - if (e) { - return error(e, sheetName); - } - try { - callback(e, root, sheet, { local: false, lastModified: 0, remaining: remaining }); - } catch(e) { - error(e, sheetName); - } - }); -} - -function writeFile(filename, content) { - var fstream = new java.io.FileWriter(filename); - var out = new java.io.BufferedWriter(fstream); - out.write(content); - out.close(); -} - -// Command line integration via Rhino -(function (args) { - var output, - compress = false, - i; - - for(i = 0; i < args.length; i++) { - switch(args[i]) { - case "-x": - compress = true; - break; - default: - if (!name) { - name = args[i]; - } else if (!output) { - output = args[i]; - } else { - print("unrecognised parameters"); - print("input_file [output_file] [-x]"); - } - } - } - - if (!name) { - print('No files present in the fileset; Check your pattern match in build.xml'); - quit(1); - } - path = name.split("/");path.pop();path=path.join("/") - - var input = readFile(name); - - if (!input) { - print('lesscss: couldn\'t open file ' + name); - quit(1); - } - - var result; - try { - var parser = new less.Parser(); - parser.parse(input, function (e, root) { - if (e) { - error(e, name); - quit(1); - } else { - result = root.toCSS({compress: compress || false}); - if (output) { - writeFile(output, result); - print("Written to " + output); - } else { - print(result); - } - quit(0); - } - }); - } - catch(e) { - error(e, name); - quit(1); - } - print("done"); -}(arguments)); - -function error(e, filename) { - - var content = "Error : " + filename + "\n"; - - filename = e.filename || filename; - - if (e.message) { - content += e.message + "\n"; - } - - var errorline = function (e, i, classname) { - if (e.extract[i]) { - content += - String(parseInt(e.line) + (i - 1)) + - ":" + e.extract[i] + "\n"; - } - }; - - if (e.stack) { - content += e.stack; - } else if (e.extract) { - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n'; - errorline(e, 0); - errorline(e, 1); - errorline(e, 2); - } - print(content); -} \ No newline at end of file diff --git a/awx/ui/static/lib/less.js/dist/less-rhino-1.3.2.js b/awx/ui/static/lib/less.js/dist/less-rhino-1.3.2.js deleted file mode 100644 index 4b83596f78..0000000000 --- a/awx/ui/static/lib/less.js/dist/less-rhino-1.3.2.js +++ /dev/null @@ -1,3990 +0,0 @@ -// -// Stub out `require` in rhino -// -function require(arg) { - return less[arg.split('/')[1]]; -}; - - -// ecma-5.js -// -// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License -// -- tlrobinson Tom Robinson -// dantman Daniel Friesen - -// -// Array -// -if (!Array.isArray) { - Array.isArray = function(obj) { - return Object.prototype.toString.call(obj) === "[object Array]" || - (obj instanceof Array); - }; -} -if (!Array.prototype.forEach) { - Array.prototype.forEach = function(block, thisObject) { - var len = this.length >>> 0; - for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree, charset; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - if (typeof(window) === 'undefined') { less = {} } - else { less = window.less = {} } - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'node'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed arround by reference. - var env = env || { }; - // env.contents and files must be passed arround with top env - if (!env.contents) { env.contents = {}; } - env.rootpath = env.rootpath || ''; // env.rootpath must be initialized to '' if not provided - if (!env.files) { env.files = {}; } - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (e, root, fullPath) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - - var imported = fullPath in that.files; - - that.files[fullPath] = root; // Store the root - - if (e && !that.error) { that.error = e } - - callback(e, root, imported); - - if (that.queue.length === 0) { finish(that.error) } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - function isWhitespace(c) { - // Could change to \s? - var code = c.charCodeAt(0); - return code === 32 || code === 10 || code === 9; - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, index, k; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - endIndex = i + chunks[j].length, - mem = i += length; - - while (i < endIndex) { - if (! isWhitespace(input.charAt(i))) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - function getInput(e, env) { - if (e.filename && env.filename && (e.filename !== env.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, input) { - for (var n = index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function getFileName(e) { - if(less.mode === 'browser' || less.mode === 'rhino') - return e.filename; - else - return require('path').resolve(e.filename); - } - - function getDebugInfo(index, inputStream, e) { - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: getFileName(e) - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input).line + 1); - this.callExtract = lines[getLocation(e.call, input).line]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length;) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - } - } - - switch (c) { - case '{': if (! inParam) { level ++; chunk.push(c); break } - case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } - case '(': if (! inParam) { inParam = true; chunk.push(c); break } - case ')': if ( inParam) { inParam = false; chunk.push(c); break } - default: chunk.push(c); - } - - i++; - } - if (level != 0) { - error = new(LessError)({ - index: i-1, - type: 'Parse', - message: (level > 0) ? "missing closing `}`" : "missing opening `{`", - filename: env.filename - }, env); - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - if (error) { - return callback(error, env); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = [], importError; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false, dumpLineNumbers: env.dumpLineNumbers }); - } catch (e) { - throw new(LessError)(e, env); - } - - if ((importError = parser.imports.error)) { // Check if there was an error during importing - if (importError instanceof LessError) throw importError; - else throw new(LessError)(importError, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('ycssmin').cssmin(css); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function (e) { - e = error || e; - if (e) callback(e); - else callback(null, root); - }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/) || $(/^;+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null } - else { i += name.length } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index, env.filename) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.ratio) || - $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted) || - $(this.entities.unicodeDescriptor); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.rootpath); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.filename); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var name, curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.filename); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) return; - - if (value = $(/^([+-]?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn|dpi|dpcm|dppx|rem|vw|vh|vmin|vm|ch)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A Ratio - // - // 16/9 - // - ratio: function () { - var value, c = input.charCodeAt(i); - if (c > 57 || c < 48) return; - - if (value = $(/^(\d+\/\d+)/)) { - return new(tree.Ratio)(value[1]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - if (ud = $(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/)) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - save(); - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - - restore(); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, argsSemiColon = [], argsComma = [], args, delim, arg, nameLoop, expressions, isSemiColonSeperated, expressionContainsNamed, index = i, s = input.charAt(i), name, value, important = false; - - if (s !== '.' && s !== '#') { return } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - if ($('(')) { - expressions = []; - while (arg = $(this.expression)) { - nameLoop = null; - value = arg; - - // Variable - if (arg.value.length == 1) { - var val = arg.value[0]; - if (val instanceof tree.Variable) { - if ($(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(this.expression); - nameLoop = (name = val.name); - } - } - } - - expressions.push(value); - - argsComma.push({ name: nameLoop, value: value }); - - if ($(',')) { - continue; - } - - if ($(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name: name, value: value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - expect(')'); - } - - args = isSemiColonSeperated ? argsSemiColon : argsComma; - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.filename, important); - } - - restore(); - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - do { - $(this.comment); - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - variadic = true; - params.push({ variadic: true }); - break; - } else if (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - value = expect(this.expression, 'expected expression'); - params.push({ name: param.name, value: value }); - } else if ($(/^\.{3}/)) { - params.push({ name: param.name, variadic: true }); - variadic = true; - break; - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - } else { - break; - } - } while ($(',') || $(';')) - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - $(this.comment); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) ||$(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^()@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(')) { - if ((v = ($(this.entities.variableCurly) || - $(this.entities.variable) || - $(this.selector))) && - $(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, i) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|') { - i++; - while (input.charAt(i).match(/\s/)) { i++ } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - // depreciated, will be removed soon - if ($('(')) { - sel = $(this.entity); - expect(')'); - return new(tree.Selector)([new(tree.Element)('', sel, i)]); - } - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^(?:[_A-Za-z0-9-]|\\.)+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match, debugInfo; - save(); - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) - ruleset.debugInfo = debugInfo; - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import(?:-(once))?\s+/); - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - return new(tree.Import)(path, imports, features, (dir[1] === 'once'), index, env.rootpath); - } - } - - restore(); - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.entity); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features); - if(env.dumpLineNumbers) - media.debugInfo = debugInfo; - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, identifier, e, nodes, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - if (!name) return; - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - name += " " + ($(/^[^{]+/) || '').trim(); - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else { - if ((value = hasExpression ? $(this.expression) : $(this.entity)) && $(';')) { - var directive = new(tree.Directive)(name, value); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while (!peek(/^\/[*\/]/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (!isWhitespace(input.charAt(i - 1)) && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-z0-9-]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (!/^([a-z-]+:)?\//.test(path) && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ - href: path, - title: path, - type: env.mime, - contents: env.contents, - files: env.files, - rootpath: env.rootpath, - entryPath: env.entryPath, - relativeUrls: env.relativeUrls }, - function (e, root, data, sheet, _, path) { - if (e && typeof(env.errback) === "function") { - env.errback.call(null, path, paths, callback, env); - } else { - callback.call(null, e, root, path); - } - }, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 256); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round((0.2126 * (color.rgb[0]/255) + - 0.7152 * (color.rgb[1]/255) + - 0.0722 * (color.rgb[2]/255)) * - color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = threshold.value; - } - if (((0.2126 * (color.rgb[0]/255) + 0.7152 * (color.rgb[1]/255) + 0.0722 * (color.rgb[2]/255)) * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return this._math(function(num) { return num.toFixed(fraction); }, n); - }, - ceil: function (n) { - return this._math(Math.ceil, n); - }, - floor: function (n) { - return this._math(Math.floor, n); - }, - _math: function (fn, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(fn(parseFloat(n.value)), n.unit); - } else if (typeof(n) === 'number') { - return fn(n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False; - }, - ispercentage: function (n) { - return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False; - }, - isem: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - - /* Blending modes */ - - multiply: function(color1, color2) { - var r = color1.rgb[0] * color2.rgb[0] / 255; - var g = color1.rgb[1] * color2.rgb[1] / 255; - var b = color1.rgb[2] * color2.rgb[2] / 255; - return this.rgb(r, g, b); - }, - screen: function(color1, color2) { - var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - overlay: function(color1, color2) { - var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - softlight: function(color1, color2) { - var t = color2.rgb[0] * color1.rgb[0] / 255; - var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255; - t = color2.rgb[1] * color1.rgb[1] / 255; - var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255; - t = color2.rgb[2] * color1.rgb[2] / 255; - var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255; - return this.rgb(r, g, b); - }, - hardlight: function(color1, color2) { - var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255; - var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255; - var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - difference: function(color1, color2) { - var r = Math.abs(color1.rgb[0] - color2.rgb[0]); - var g = Math.abs(color1.rgb[1] - color2.rgb[1]); - var b = Math.abs(color1.rgb[2] - color2.rgb[2]); - return this.rgb(r, g, b); - }, - exclusion: function(color1, color2) { - var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255; - var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255; - var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - average: function(color1, color2) { - var r = (color1.rgb[0] + color2.rgb[0]) / 2; - var g = (color1.rgb[1] + color2.rgb[1]) / 2; - var b = (color1.rgb[2] + color2.rgb[2]) / 2; - return this.rgb(r, g, b); - }, - negation: function(color1, color2) { - var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]); - var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]); - var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]); - return this.rgb(r, g, b); - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - } -}; - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit == '%') { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - // 'transparent':'rgba(0,0,0,0)', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, filename) { - this.name = name; - this.args = args; - this.index = index; - this.filename = filename; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.filename }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS(env) }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype.eval = function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - if (other.value > this.value) { - return -1; - } else if (other.value < this.value) { - return 1; - } else { - if (other.unit && this.unit !== other.unit) { - return -1; - } - return 0; - } - } else { - return -1; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - var evaldDirective = this; - if (this.ruleset) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name); - evaldDirective.ruleset = this.ruleset.eval(env); - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype.eval = function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); -}; -tree.Element.prototype.toCSS = function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value == '' && this.combinator.value.charAt(0) == '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ', - '|' : env.compress ? '|' : ' | ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports, features, once, index, rootpath) { - var that = this; - - this.once = once; - this.index = index; - this._path = path; - this.features = features && new(tree.Value)(features); - this.rootpath = rootpath; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /(\.[a-z]*$)|([\?;].*)$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css([\?;].*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (e, root, imported) { - if (e) { e.index = index } - if (imported && that.once) that.skip = imported; - that.root = root || new(tree.Ruleset)([], []); - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - // Add the base path if the import is relative - if (typeof this._path.value === "string" && !/^(?:[a-z-]+:|\/)/.test(this._path.value)) { - this._path.value = this.rootpath + this._path.value; - } - return "@import " + this._path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) return []; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.Media = function (value, features) { - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.ruleset = new(tree.Ruleset)(selectors, value); - this.ruleset.allowImports = true; -}; -tree.Media.prototype = { - toCSS: function (ctx, env) { - var features = this.features.toCSS(env); - - this.ruleset.root = (ctx.length === 0 || ctx[0].multiMedia); - return '@media ' + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - }, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)([], []); - if(this.debugInfo) { - this.ruleset.debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - media.features = this.features.eval(env); - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.ruleset); - media.ruleset = this.ruleset.eval(env); - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env) - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', 0); - return [new(tree.Selector)([el])]; - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.ruleset = new(tree.Ruleset)(selectors.slice(0), [this.ruleset]); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, filename, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.filename = filename; - this.important = important; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - if (mixin.matchArgs(args, env)) { - if (!mixin.matchCondition || mixin.matchCondition(args, env)) { - try { - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.filename, stack: e.stack }; - } - } - match = true; - } - } - if (match) { - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")`", - index: this.index, filename: this.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.filename }; - } - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - var frame = new(tree.Ruleset)(null, []), varargs, arg, params = this.params.slice(0), i, j, val, name, isNamedFound, argIndex; - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.rules.unshift(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) continue; - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.rules.unshift(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, {frames: mixinFrames}, args, _arguments), - context, rules, start, ruleset; - - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.parent.makeImportant.apply(this).rules : this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules).eval({ - frames: [this, frame].concat(mixinFrames) - }); - ruleset.originalRuleset = this; - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval({ - frames: [this.evalParams(env, {frames: this.frames.concat(env.frames)}, args, [])].concat(env.frames) - })) { return false } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (! this.variadic) { - if (argsLength < this.required) { return false } - if (argsLength > this.params.length) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - if (!a.operate) { - throw { name: "OperationError", - message: "Operation on an invalid type" }; - } - - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - toCSS: function (env) { - return '(' + this.value.toCSS(env) + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ratio = function (value) { - this.value = value; -}; -tree.Ratio.prototype = { - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, - this.value.eval(context), - this.important, - this.index, this.inline); -}; - -tree.Rule.prototype.makeImportant = function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.index, this.inline); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - rules = ruleset.rules[i].eval(env); - ruleset.rules.splice.apply(ruleset.rules, [i, 1].concat(rules)); - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - if (env.mediaBlocks) { - for(var i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var i, rules; - for (i = 0; i < this.rules.length; i++) { - if (this.rules[i] instanceof tree.Import) { - rules = this.rules[i].eval(env); - if (typeof rules.length === "number") { - this.rules.splice.apply(this.rules, [i, 1].concat(rules)); - i+= rules.length-1; - } else { - this.rules.splice(i, 1, rules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - _rules = [], // - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - debugInfo, // Line number debugging - rule; - - if (! this.root) { - this.joinSelectors(paths, context, this.selectors); - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Media)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Directive) { - var cssValue = rule.toCSS(paths, env); - // Output only the first @charset definition as such - convert the others - // to comments in case debug is enabled - if (rule.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (env.charset) { - if (rule.debugInfo) { - rulesets.push(tree.debugInfo(env, rule)); - rulesets.push(new tree.Comment("/* "+cssValue.replace(/\n/g, "")+" */\n").toCSS(env)); - } - continue; - } - env.charset = true; - } - rulesets.push(cssValue); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - debugInfo = tree.debugInfo(env, this); - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : ',\n'); - - // Remove duplicates - for (var i = rules.length - 1; i >= 0; i--) { - if (_rules.indexOf(rules[i]) === -1) { - _rules.unshift(rules[i]); - } - } - rules = _rules; - - css.push(debugInfo + selector + - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for(i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for(j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length == 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0)); //new Element(el.Combinator, "")); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for(k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = new(tree.Selector)(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = new(tree.Selector)([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, 0)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for(i = 0; i < newSelectors.length; i++) { - paths.push(newSelectors[i]); - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length == 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for(i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = new(tree.Selector)(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; -}; -tree.Selector.prototype.match = function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, max, i; - - oelements = other.elements.slice( - (other.elements.length && other.elements[0].value === "&") ? 1 : 0); - olen = oelements.length; - max = Math.min(len, olen) - - if (olen === 0 || len < olen) { - return false; - } else { - for (i = 0; i < max; i++) { - if (elements[i].value !== oelements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.eval = function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - })); -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - if (this.elements[0].combinator.value === "") { - this._css = ' '; - } else { - this._css = ''; - } - - this._css += this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); - - return this._css; -}; - -})(require('../tree')); -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, rootpath) { - this.value = val; - this.rootpath = rootpath; -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + this.value.toCSS() + ")"; - }, - eval: function (ctx) { - var val = this.value.eval(ctx), rootpath; - - // Add the base path if the URL is relative - if (typeof val.value === "string" && !/^(?:[a-z-]+:|\/)/.test(val.value)) { - rootpath = this.rootpath; - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - return new(tree.URL)(val, this.rootpath); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.file, - index: this.index }; - } - - this.evaluating = true; - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { - this.evaluating = false; - return variable; - } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.file, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.debugInfo = function(env, ctx) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx)+tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/[\/:.]/g, '\\$&') + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -var name; - -function loadStyleSheet(sheet, callback, reload, remaining) { - var endOfPath = Math.max(name.lastIndexOf('/'), name.lastIndexOf('\\')), - sheetName = name.slice(0, endOfPath + 1) + sheet.href, - contents = sheet.contents || {}, - input = readFile(sheetName); - - contents[sheetName] = input; - - var parser = new less.Parser({ - paths: [sheet.href.replace(/[\w\.-]+$/, '')], - contents: contents - }); - parser.parse(input, function (e, root) { - if (e) { - return error(e, sheetName); - } - try { - callback(e, root, input, sheet, { local: false, lastModified: 0, remaining: remaining }, sheetName); - } catch(e) { - error(e, sheetName); - } - }); -} - -function writeFile(filename, content) { - var fstream = new java.io.FileWriter(filename); - var out = new java.io.BufferedWriter(fstream); - out.write(content); - out.close(); -} - -// Command line integration via Rhino -(function (args) { - var output, - compress = false, - i; - - for(i = 0; i < args.length; i++) { - switch(args[i]) { - case "-x": - compress = true; - break; - default: - if (!name) { - name = args[i]; - } else if (!output) { - output = args[i]; - } else { - print("unrecognised parameters"); - print("input_file [output_file] [-x]"); - } - } - } - - if (!name) { - print('No files present in the fileset; Check your pattern match in build.xml'); - quit(1); - } - path = name.split("/");path.pop();path=path.join("/") - - var input = readFile(name); - - if (!input) { - print('lesscss: couldn\'t open file ' + name); - quit(1); - } - - var result; - try { - var parser = new less.Parser(); - parser.parse(input, function (e, root) { - if (e) { - error(e, name); - quit(1); - } else { - result = root.toCSS({compress: compress || false}); - if (output) { - writeFile(output, result); - print("Written to " + output); - } else { - print(result); - } - quit(0); - } - }); - } - catch(e) { - error(e, name); - quit(1); - } - print("done"); -}(arguments)); - -function error(e, filename) { - - var content = "Error : " + filename + "\n"; - - filename = e.filename || filename; - - if (e.message) { - content += e.message + "\n"; - } - - var errorline = function (e, i, classname) { - if (e.extract[i]) { - content += - String(parseInt(e.line) + (i - 1)) + - ":" + e.extract[i] + "\n"; - } - }; - - if (e.stack) { - content += e.stack; - } else if (e.extract) { - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n'; - errorline(e, 0); - errorline(e, 1); - errorline(e, 2); - } - print(content); -} \ No newline at end of file diff --git a/awx/ui/static/lib/less.js/dist/less-rhino-1.3.3.js b/awx/ui/static/lib/less.js/dist/less-rhino-1.3.3.js deleted file mode 100644 index 857a97c941..0000000000 --- a/awx/ui/static/lib/less.js/dist/less-rhino-1.3.3.js +++ /dev/null @@ -1,4002 +0,0 @@ -// -// Stub out `require` in rhino -// -function require(arg) { - return less[arg.split('/')[1]]; -}; - - -// ecma-5.js -// -// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License -// -- tlrobinson Tom Robinson -// dantman Daniel Friesen - -// -// Array -// -if (!Array.isArray) { - Array.isArray = function(obj) { - return Object.prototype.toString.call(obj) === "[object Array]" || - (obj instanceof Array); - }; -} -if (!Array.prototype.forEach) { - Array.prototype.forEach = function(block, thisObject) { - var len = this.length >>> 0; - for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree, charset; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - if (typeof(window) === 'undefined') { less = {} } - else { less = window.less = {} } - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'node'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed arround by reference. - var env = env || { }; - // env.contents and files must be passed arround with top env - if (!env.contents) { env.contents = {}; } - env.rootpath = env.rootpath || ''; // env.rootpath must be initialized to '' if not provided - if (!env.files) { env.files = {}; } - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (e, root, fullPath) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - - var imported = fullPath in that.files; - - that.files[fullPath] = root; // Store the root - - if (e && !that.error) { that.error = e } - - callback(e, root, imported); - - if (that.queue.length === 0) { finish(that.error) } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - function isWhitespace(c) { - // Could change to \s? - var code = c.charCodeAt(0); - return code === 32 || code === 10 || code === 9; - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, index, k; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - endIndex = i + chunks[j].length, - mem = i += length; - - while (i < endIndex) { - if (! isWhitespace(input.charAt(i))) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - function getInput(e, env) { - if (e.filename && env.filename && (e.filename !== env.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, input) { - for (var n = index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function getFileName(e) { - if(less.mode === 'browser' || less.mode === 'rhino') - return e.filename; - else - return require('path').resolve(e.filename); - } - - function getDebugInfo(index, inputStream, e) { - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: getFileName(e) - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input).line + 1); - this.callExtract = lines[getLocation(e.call, input).line]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length;) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - } - } - - switch (c) { - case '{': if (! inParam) { level ++; chunk.push(c); break } - case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } - case '(': if (! inParam) { inParam = true; chunk.push(c); break } - case ')': if ( inParam) { inParam = false; chunk.push(c); break } - default: chunk.push(c); - } - - i++; - } - if (level != 0) { - error = new(LessError)({ - index: i-1, - type: 'Parse', - message: (level > 0) ? "missing closing `}`" : "missing opening `{`", - filename: env.filename - }, env); - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - if (error) { - return callback(error, env); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = [], importError; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false, dumpLineNumbers: env.dumpLineNumbers }); - } catch (e) { - throw new(LessError)(e, env); - } - - if ((importError = parser.imports.error)) { // Check if there was an error during importing - if (importError instanceof LessError) throw importError; - else throw new(LessError)(importError, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('ycssmin').cssmin(css); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function (e) { - e = error || e; - if (e) callback(e); - else callback(null, root); - }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/) || $(/^;+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null } - else { i += name.length } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index, env.filename) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.ratio) || - $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted) || - $(this.entities.unicodeDescriptor); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.rootpath); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.filename); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var name, curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.filename); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) return; - - if (value = $(/^([+-]?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn|dpi|dpcm|dppx|rem|vw|vh|vmin|vm|ch)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A Ratio - // - // 16/9 - // - ratio: function () { - var value, c = input.charCodeAt(i); - if (c > 57 || c < 48) return; - - if (value = $(/^(\d+\/\d+)/)) { - return new(tree.Ratio)(value[1]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - if (ud = $(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/)) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - save(); - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - - restore(); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, argsSemiColon = [], argsComma = [], args, delim, arg, nameLoop, expressions, isSemiColonSeperated, expressionContainsNamed, index = i, s = input.charAt(i), name, value, important = false; - - if (s !== '.' && s !== '#') { return } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - if ($('(')) { - expressions = []; - while (arg = $(this.expression)) { - nameLoop = null; - value = arg; - - // Variable - if (arg.value.length == 1) { - var val = arg.value[0]; - if (val instanceof tree.Variable) { - if ($(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(this.expression); - nameLoop = (name = val.name); - } - } - } - - expressions.push(value); - - argsComma.push({ name: nameLoop, value: value }); - - if ($(',')) { - continue; - } - - if ($(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name: name, value: value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - expect(')'); - } - - args = isSemiColonSeperated ? argsSemiColon : argsComma; - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.filename, important); - } - - restore(); - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - do { - $(this.comment); - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - variadic = true; - params.push({ variadic: true }); - break; - } else if (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - value = expect(this.expression, 'expected expression'); - params.push({ name: param.name, value: value }); - } else if ($(/^\.{3}/)) { - params.push({ name: param.name, variadic: true }); - variadic = true; - break; - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - } else { - break; - } - } while ($(',') || $(';')) - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - $(this.comment); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) ||$(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^()@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(')) { - if ((v = ($(this.entities.variableCurly) || - $(this.entities.variable) || - $(this.selector))) && - $(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, i) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|') { - i++; - while (input.charAt(i).match(/\s/)) { i++ } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - // depreciated, will be removed soon - if ($('(')) { - sel = $(this.entity); - if (!$(')')) { return null; } - return new(tree.Selector)([new(tree.Element)('', sel, i)]); - } - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^(?:[_A-Za-z0-9-]|\\.)+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match, debugInfo; - - save(); - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) - ruleset.debugInfo = debugInfo; - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import(?:-(once))?\s+/); - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - return new(tree.Import)(path, imports, features, (dir[1] === 'once'), index, env.rootpath); - } - } - - restore(); - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.entity); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features); - if(env.dumpLineNumbers) - media.debugInfo = debugInfo; - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, identifier, e, nodes, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - if (!name) return; - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - name += " " + ($(/^[^{]+/) || '').trim(); - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else { - if ((value = hasExpression ? $(this.expression) : $(this.entity)) && $(';')) { - var directive = new(tree.Directive)(name, value); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while (!peek(/^\/[*\/]/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (!isWhitespace(input.charAt(i - 1)) && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-z0-9-]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (!/^([a-z-]+:)?\//.test(path) && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ - href: path, - title: path, - type: env.mime, - contents: env.contents, - files: env.files, - rootpath: env.rootpath, - entryPath: env.entryPath, - relativeUrls: env.relativeUrls }, - function (e, root, data, sheet, _, path) { - if (e && typeof(env.errback) === "function") { - env.errback.call(null, path, paths, callback, env); - } else { - callback.call(null, e, root, path); - } - }, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 256); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round((0.2126 * (color.rgb[0]/255) + - 0.7152 * (color.rgb[1]/255) + - 0.0722 * (color.rgb[2]/255)) * - color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = threshold.value; - } - if (((0.2126 * (color.rgb[0]/255) + 0.7152 * (color.rgb[1]/255) + 0.0722 * (color.rgb[2]/255)) * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return this._math(function(num) { return num.toFixed(fraction); }, n); - }, - ceil: function (n) { - return this._math(Math.ceil, n); - }, - floor: function (n) { - return this._math(Math.floor, n); - }, - _math: function (fn, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(fn(parseFloat(n.value)), n.unit); - } else if (typeof(n) === 'number') { - return fn(n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False; - }, - ispercentage: function (n) { - return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False; - }, - isem: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - - /* Blending modes */ - - multiply: function(color1, color2) { - var r = color1.rgb[0] * color2.rgb[0] / 255; - var g = color1.rgb[1] * color2.rgb[1] / 255; - var b = color1.rgb[2] * color2.rgb[2] / 255; - return this.rgb(r, g, b); - }, - screen: function(color1, color2) { - var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - overlay: function(color1, color2) { - var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - softlight: function(color1, color2) { - var t = color2.rgb[0] * color1.rgb[0] / 255; - var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255; - t = color2.rgb[1] * color1.rgb[1] / 255; - var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255; - t = color2.rgb[2] * color1.rgb[2] / 255; - var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255; - return this.rgb(r, g, b); - }, - hardlight: function(color1, color2) { - var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255; - var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255; - var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - difference: function(color1, color2) { - var r = Math.abs(color1.rgb[0] - color2.rgb[0]); - var g = Math.abs(color1.rgb[1] - color2.rgb[1]); - var b = Math.abs(color1.rgb[2] - color2.rgb[2]); - return this.rgb(r, g, b); - }, - exclusion: function(color1, color2) { - var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255; - var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255; - var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - average: function(color1, color2) { - var r = (color1.rgb[0] + color2.rgb[0]) / 2; - var g = (color1.rgb[1] + color2.rgb[1]) / 2; - var b = (color1.rgb[2] + color2.rgb[2]) / 2; - return this.rgb(r, g, b); - }, - negation: function(color1, color2) { - var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]); - var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]); - var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]); - return this.rgb(r, g, b); - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - } -}; - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit == '%') { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - // 'transparent':'rgba(0,0,0,0)', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, filename) { - this.name = name; - this.args = args; - this.index = index; - this.filename = filename; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }), - result; - - if (this.name in tree.functions) { // 1. - try { - result = tree.functions[this.name].apply(tree.functions, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.filename }; - } - } - - // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS(env) }).join(', ') + ")"); - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype.eval = function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - if (other.value > this.value) { - return -1; - } else if (other.value < this.value) { - return 1; - } else { - if (other.unit && this.unit !== other.unit) { - return -1; - } - return 0; - } - } else { - return -1; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - var evaldDirective = this; - if (this.ruleset) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name); - evaldDirective.ruleset = this.ruleset.eval(env); - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype.eval = function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); -}; -tree.Element.prototype.toCSS = function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value == '' && this.combinator.value.charAt(0) == '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ', - '|' : env.compress ? '|' : ' | ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports, features, once, index, rootpath) { - var that = this; - - this.once = once; - this.index = index; - this._path = path; - this.features = features && new(tree.Value)(features); - this.rootpath = rootpath; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /(\.[a-z]*$)|([\?;].*)$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css([\?;].*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (e, root, imported) { - if (e) { e.index = index } - if (imported && that.once) that.skip = imported; - that.root = root || new(tree.Ruleset)([], []); - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - // Add the base path if the import is relative - if (typeof this._path.value === "string" && !/^(?:[a-z-]+:|\/)/.test(this._path.value)) { - this._path.value = this.rootpath + this._path.value; - } - return "@import " + this._path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) return []; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.Media = function (value, features) { - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.ruleset = new(tree.Ruleset)(selectors, value); - this.ruleset.allowImports = true; -}; -tree.Media.prototype = { - toCSS: function (ctx, env) { - var features = this.features.toCSS(env); - - this.ruleset.root = (ctx.length === 0 || ctx[0].multiMedia); - return '@media ' + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - }, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)([], []); - if(this.debugInfo) { - this.ruleset.debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - media.features = this.features.eval(env); - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.ruleset); - media.ruleset = this.ruleset.eval(env); - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env) - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', 0); - return [new(tree.Selector)([el])]; - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.ruleset = new(tree.Ruleset)(selectors.slice(0), [this.ruleset]); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, filename, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.filename = filename; - this.important = important; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - if (mixin.matchArgs(args, env)) { - if (!mixin.matchCondition || mixin.matchCondition(args, env)) { - try { - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.filename, stack: e.stack }; - } - } - match = true; - } - } - if (match) { - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")`", - index: this.index, filename: this.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.filename }; - } - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - var frame = new(tree.Ruleset)(null, []), varargs, arg, params = this.params.slice(0), i, j, val, name, isNamedFound, argIndex; - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.rules.unshift(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) continue; - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.rules.unshift(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, {frames: mixinFrames}, args, _arguments), - context, rules, start, ruleset; - - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.parent.makeImportant.apply(this).rules : this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules).eval({ - frames: [this, frame].concat(mixinFrames) - }); - ruleset.originalRuleset = this; - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval({ - frames: [this.evalParams(env, {frames: this.frames.concat(env.frames)}, args, [])].concat(env.frames) - })) { return false } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (! this.variadic) { - if (argsLength < this.required) { return false } - if (argsLength > this.params.length) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - if (!a.operate) { - throw { name: "OperationError", - message: "Operation on an invalid type" }; - } - - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - toCSS: function (env) { - return '(' + this.value.toCSS(env) + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ratio = function (value) { - this.value = value; -}; -tree.Ratio.prototype = { - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, - this.value.eval(context), - this.important, - this.index, this.inline); -}; - -tree.Rule.prototype.makeImportant = function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.index, this.inline); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - rules = ruleset.rules[i].eval(env); - ruleset.rules.splice.apply(ruleset.rules, [i, 1].concat(rules)); - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - if (env.mediaBlocks) { - for(var i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var i, rules; - for (i = 0; i < this.rules.length; i++) { - if (this.rules[i] instanceof tree.Import) { - rules = this.rules[i].eval(env); - if (typeof rules.length === "number") { - this.rules.splice.apply(this.rules, [i, 1].concat(rules)); - i+= rules.length-1; - } else { - this.rules.splice(i, 1, rules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - _rules = [], // - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - debugInfo, // Line number debugging - rule; - - if (! this.root) { - this.joinSelectors(paths, context, this.selectors); - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Media)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Directive) { - var cssValue = rule.toCSS(paths, env); - // Output only the first @charset definition as such - convert the others - // to comments in case debug is enabled - if (rule.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (env.charset) { - if (rule.debugInfo) { - rulesets.push(tree.debugInfo(env, rule)); - rulesets.push(new tree.Comment("/* "+cssValue.replace(/\n/g, "")+" */\n").toCSS(env)); - } - continue; - } - env.charset = true; - } - rulesets.push(cssValue); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - debugInfo = tree.debugInfo(env, this); - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : ',\n'); - - // Remove duplicates - for (var i = rules.length - 1; i >= 0; i--) { - if (_rules.indexOf(rules[i]) === -1) { - _rules.unshift(rules[i]); - } - } - rules = _rules; - - css.push(debugInfo + selector + - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for(i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for(j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length == 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0)); //new Element(el.Combinator, "")); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for(k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = new(tree.Selector)(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = new(tree.Selector)([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, 0)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for(i = 0; i < newSelectors.length; i++) { - paths.push(newSelectors[i]); - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length == 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for(i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = new(tree.Selector)(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; -}; -tree.Selector.prototype.match = function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, max, i; - - oelements = other.elements.slice( - (other.elements.length && other.elements[0].value === "&") ? 1 : 0); - olen = oelements.length; - max = Math.min(len, olen) - - if (olen === 0 || len < olen) { - return false; - } else { - for (i = 0; i < max; i++) { - if (elements[i].value !== oelements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.eval = function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - })); -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - if (this.elements[0].combinator.value === "") { - this._css = ' '; - } else { - this._css = ''; - } - - this._css += this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); - - return this._css; -}; - -})(require('../tree')); -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, rootpath) { - this.value = val; - this.rootpath = rootpath; -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + this.value.toCSS() + ")"; - }, - eval: function (ctx) { - var val = this.value.eval(ctx), rootpath; - - // Add the base path if the URL is relative - if (typeof val.value === "string" && !/^(?:[a-z-]+:|\/)/.test(val.value)) { - rootpath = this.rootpath; - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - return new(tree.URL)(val, this.rootpath); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.file, - index: this.index }; - } - - this.evaluating = true; - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { - this.evaluating = false; - return variable; - } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.file, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.debugInfo = function(env, ctx) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx)+tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/[\/:.]/g, '\\$&') + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -var name; - -function loadStyleSheet(sheet, callback, reload, remaining) { - var endOfPath = Math.max(name.lastIndexOf('/'), name.lastIndexOf('\\')), - sheetName = name.slice(0, endOfPath + 1) + sheet.href, - contents = sheet.contents || {}, - input = readFile(sheetName); - - contents[sheetName] = input; - - var parser = new less.Parser({ - paths: [sheet.href.replace(/[\w\.-]+$/, '')], - contents: contents - }); - parser.parse(input, function (e, root) { - if (e) { - return error(e, sheetName); - } - try { - callback(e, root, input, sheet, { local: false, lastModified: 0, remaining: remaining }, sheetName); - } catch(e) { - error(e, sheetName); - } - }); -} - -function writeFile(filename, content) { - var fstream = new java.io.FileWriter(filename); - var out = new java.io.BufferedWriter(fstream); - out.write(content); - out.close(); -} - -// Command line integration via Rhino -(function (args) { - var output, - compress = false, - i; - - for(i = 0; i < args.length; i++) { - switch(args[i]) { - case "-x": - compress = true; - break; - default: - if (!name) { - name = args[i]; - } else if (!output) { - output = args[i]; - } else { - print("unrecognised parameters"); - print("input_file [output_file] [-x]"); - } - } - } - - if (!name) { - print('No files present in the fileset; Check your pattern match in build.xml'); - quit(1); - } - path = name.split("/");path.pop();path=path.join("/") - - var input = readFile(name); - - if (!input) { - print('lesscss: couldn\'t open file ' + name); - quit(1); - } - - var result; - try { - var parser = new less.Parser(); - parser.parse(input, function (e, root) { - if (e) { - error(e, name); - quit(1); - } else { - result = root.toCSS({compress: compress || false}); - if (output) { - writeFile(output, result); - print("Written to " + output); - } else { - print(result); - } - quit(0); - } - }); - } - catch(e) { - error(e, name); - quit(1); - } - print("done"); -}(arguments)); - -function error(e, filename) { - - var content = "Error : " + filename + "\n"; - - filename = e.filename || filename; - - if (e.message) { - content += e.message + "\n"; - } - - var errorline = function (e, i, classname) { - if (e.extract[i]) { - content += - String(parseInt(e.line) + (i - 1)) + - ":" + e.extract[i] + "\n"; - } - }; - - if (e.stack) { - content += e.stack; - } else if (e.extract) { - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n'; - errorline(e, 0); - errorline(e, 1); - errorline(e, 2); - } - print(content); -} \ No newline at end of file diff --git a/awx/ui/static/lib/less.js/dist/less-rhino-1.4.0.js b/awx/ui/static/lib/less.js/dist/less-rhino-1.4.0.js deleted file mode 100644 index a90573f7f3..0000000000 --- a/awx/ui/static/lib/less.js/dist/less-rhino-1.4.0.js +++ /dev/null @@ -1,4273 +0,0 @@ -// -// Stub out `require` in rhino -// -function require(arg) { - return less[arg.split('/')[1]]; -}; - - -// ecma-5.js -// -// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License -// -- tlrobinson Tom Robinson -// dantman Daniel Friesen - -// -// Array -// -if (!Array.isArray) { - Array.isArray = function(obj) { - return Object.prototype.toString.call(obj) === "[object Array]" || - (obj instanceof Array); - }; -} -if (!Array.prototype.forEach) { - Array.prototype.forEach = function(block, thisObject) { - var len = this.length >>> 0; - for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree, charset; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - if (typeof(window) === 'undefined') { less = {} } - else { less = window.less = {} } - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'node'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed arround by reference. - var env = env || { }; - // env.contents and files must be passed arround with top env - if (!env.contents) { env.contents = {}; } - env.rootpath = env.rootpath || ''; // env.rootpath must be initialized to '' if not provided - if (!env.files) { env.files = {}; } - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (e, root, fullPath) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - - var imported = fullPath in that.files; - - that.files[fullPath] = root; // Store the root - - if (e && !that.error) { that.error = e } - - callback(e, root, imported); - - if (that.queue.length === 0) { finish(that.error) } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - function isWhitespace(c) { - // Could change to \s? - var code = c.charCodeAt(0); - return code === 32 || code === 10 || code === 9; - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, index, k; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - endIndex = i + chunks[j].length, - mem = i += length; - - while (i < endIndex) { - if (! isWhitespace(input.charAt(i))) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - function getInput(e, env) { - if (e.filename && env.filename && (e.filename !== env.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, input) { - for (var n = index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function getFileName(e) { - if(less.mode === 'browser' || less.mode === 'rhino') - return e.filename; - else - return require('path').resolve(e.filename); - } - - function getDebugInfo(index, inputStream, e) { - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: getFileName(e) - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input).line + 1); - this.callExtract = lines[getLocation(e.call, input).line]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length;) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - } - } - - switch (c) { - case '{': if (! inParam) { level ++; chunk.push(c); break } - case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } - case '(': if (! inParam) { inParam = true; chunk.push(c); break } - case ')': if ( inParam) { inParam = false; chunk.push(c); break } - default: chunk.push(c); - } - - i++; - } - if (level != 0) { - error = new(LessError)({ - index: i-1, - type: 'Parse', - message: (level > 0) ? "missing closing `}`" : "missing opening `{`", - filename: env.filename - }, env); - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - if (error) { - return callback(error, env); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = [], importError; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false, dumpLineNumbers: env.dumpLineNumbers }); - } catch (e) { - throw new(LessError)(e, env); - } - - if ((importError = parser.imports.error)) { // Check if there was an error during importing - if (importError instanceof LessError) throw importError; - else throw new(LessError)(importError, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('ycssmin').cssmin(css); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function (e) { - e = error || e; - if (e) callback(e); - else callback(null, root); - }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.extendRule) || $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/) || $(/^;+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null } - else { i += name.length } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index, env.filename) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.ratio) || - $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted) || - $(this.entities.unicodeDescriptor); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.rootpath); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.filename); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var name, curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.filename); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) return; - - if (value = $(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A Ratio - // - // 16/9 - // - ratio: function () { - var value, c = input.charCodeAt(i); - if (c > 57 || c < 48) return; - - if (value = $(/^(\d+\/\d+)/)) { - return new(tree.Ratio)(value[1]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - if (ud = $(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/)) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - save(); - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - - restore(); - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements = [], e, args, index = i; - - if (!$(isRule ? /^&:extend\(/ : /^:extend\(/)) { return; } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(null, e, i)); - } - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return new(tree.Extend)(elements, index); - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, argsSemiColon = [], argsComma = [], args, delim, arg, nameLoop, expressions, isSemiColonSeperated, expressionContainsNamed, index = i, s = input.charAt(i), name, value, important = false; - - if (s !== '.' && s !== '#') { return } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - if ($('(')) { - expressions = []; - while (arg = $(this.expression)) { - nameLoop = null; - value = arg; - - // Variable - if (arg.value.length == 1) { - var val = arg.value[0]; - if (val instanceof tree.Variable) { - if ($(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(this.expression); - nameLoop = (name = val.name); - } - } - } - - expressions.push(value); - - argsComma.push({ name: nameLoop, value: value }); - - if ($(',')) { - continue; - } - - if ($(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name: name, value: value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - expect(')'); - } - - args = isSemiColonSeperated ? argsSemiColon : argsComma; - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.filename, important); - } - - restore(); - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - do { - $(this.comment); - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - variadic = true; - params.push({ variadic: true }); - break; - } else if (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - value = expect(this.expression, 'expected expression'); - params.push({ name: param.name, value: value }); - } else if ($(/^\.{3}/)) { - params.push({ name: param.name, variadic: true }); - variadic = true; - break; - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - } else { - break; - } - } while ($(',') || $(';')) - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - $(this.comment); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) ||$(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^()@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(')) { - if ((v = (//$(this.entities.variableCurly) || - $(this.selector))) && - $(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, i) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|') { - i++; - while (input.charAt(i).match(/\s/)) { i++ } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match, extend; - - while ((extend = $(this.extend)) || (e = $(this.element))) { - if (!e) { - break; - } - c = input.charAt(i); - elements.push(e) - e = null; - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements, extend) } - if (extend) { error("Extend must be used to extend a selector"); } - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^(?:[_A-Za-z0-9-]|\\.)+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match, debugInfo; - - save(); - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) - ruleset.debugInfo = debugInfo; - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import(?:-(once|multiple))?\s+/); - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - var importOnce = dir[1] !== 'multiple'; - return new(tree.Import)(path, imports, features, importOnce, index, env.rootpath); - } - } - - restore(); - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.entity); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features); - if(env.dumpLineNumbers) - media.debugInfo = debugInfo; - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, identifier, e, nodes, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - if (!name) return; - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - name += " " + ($(/^[^{]+/) || '').trim(); - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else { - if ((value = hasExpression ? $(this.expression) : $(this.entity)) && $(';')) { - var directive = new(tree.Directive)(name, value); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while (!peek(/^\/[*\/]/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (!isWhitespace(input.charAt(i - 1)) && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-z0-9-]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (!/^([a-z-]+:)?\//.test(path) && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ - href: path, - title: path, - type: env.mime, - contents: env.contents, - files: env.files, - rootpath: env.rootpath, - entryPath: env.entryPath, - relativeUrls: env.relativeUrls }, - function (e, root, data, sheet, _, path) { - if (e && typeof(env.errback) === "function") { - env.errback.call(null, path, paths, callback, env); - } else { - callback.call(null, e, root, path); - } - }, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 256); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round((0.2126 * (color.rgb[0]/255) + - 0.7152 * (color.rgb[1]/255) + - 0.0722 * (color.rgb[2]/255)) * - color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = threshold.value; - } - if (((0.2126 * (color.rgb[0]/255) + 0.7152 * (color.rgb[1]/255) + 0.0722 * (color.rgb[2]/255)) * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return this._math(function(num) { return num.toFixed(fraction); }, n); - }, - ceil: function (n) { - return this._math(Math.ceil, n); - }, - floor: function (n) { - return this._math(Math.floor, n); - }, - _math: function (fn, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(fn(parseFloat(n.value)), n.unit); - } else if (typeof(n) === 'number') { - return fn(n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return (n instanceof tree.Dimension) && n.unit.is('px') ? tree.True : tree.False; - }, - ispercentage: function (n) { - return (n instanceof tree.Dimension) && n.unit.is('%') ? tree.True : tree.False; - }, - isem: function (n) { - return (n instanceof tree.Dimension) && n.unit.is('em') ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - - /* Blending modes */ - - multiply: function(color1, color2) { - var r = color1.rgb[0] * color2.rgb[0] / 255; - var g = color1.rgb[1] * color2.rgb[1] / 255; - var b = color1.rgb[2] * color2.rgb[2] / 255; - return this.rgb(r, g, b); - }, - screen: function(color1, color2) { - var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - overlay: function(color1, color2) { - var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - softlight: function(color1, color2) { - var t = color2.rgb[0] * color1.rgb[0] / 255; - var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255; - t = color2.rgb[1] * color1.rgb[1] / 255; - var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255; - t = color2.rgb[2] * color1.rgb[2] / 255; - var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255; - return this.rgb(r, g, b); - }, - hardlight: function(color1, color2) { - var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255; - var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255; - var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - difference: function(color1, color2) { - var r = Math.abs(color1.rgb[0] - color2.rgb[0]); - var g = Math.abs(color1.rgb[1] - color2.rgb[1]); - var b = Math.abs(color1.rgb[2] - color2.rgb[2]); - return this.rgb(r, g, b); - }, - exclusion: function(color1, color2) { - var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255; - var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255; - var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - average: function(color1, color2) { - var r = (color1.rgb[0] + color2.rgb[0]) / 2; - var g = (color1.rgb[1] + color2.rgb[1]) / 2; - var b = (color1.rgb[2] + color2.rgb[2]) / 2; - return this.rgb(r, g, b); - }, - negation: function(color1, color2) { - var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]); - var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]); - var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]); - return this.rgb(r, g, b); - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - } -}; - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - // 'transparent':'rgba(0,0,0,0)', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, filename) { - this.name = name; - this.args = args; - this.index = index; - this.filename = filename; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }), - result; - - if (this.name in tree.functions) { // 1. - try { - result = tree.functions[this.name].apply(tree.functions, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.filename }; - } - } - - // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS(env) }).join(', ') + ")"); - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype.eval = function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - return this.unit.isEmpty() ? this.value : - (String(this.value) + this.unit.toCSS()); - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (op, other) { - var value = tree.operate(op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length == 0 && unit.denominator.length == 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(other.unit.toCSS() !== unit.toCSS()) { - throw new Error("Incompatible units: '" + unit.toCSS() + - "' and '" + other.unit.toCSS() + "'."); - } - - value = tree.operate(op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a = this.unify(), b = other.unify(), - aValue = a.value, bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - if (!b.unit.isEmpty() && a.unit.compare(b) !== 0) { - return -1; - } - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'm', duration: 's' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, conversion, targetUnit; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(function (atomicUnit, denominator) { - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - } -}; - -tree.Unit = function (numerator, denominator) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; -}; - -tree.Unit.prototype = { - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0)); - }, - - toCSS: function () { - var i, css = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - css += "/" + this.denominator[i]; - } - return css; - }, - - compare: function (other) { - return this.is(other.toCSS()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toCSS() === unitString; - }, - - isEmpty: function () { - return this.numerator.length == 0 && this.denominator.length == 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, groupName, result = {}; - - for (groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(function (atomicUnit) { - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - var evaldDirective = this; - if (this.ruleset) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name); - evaldDirective.ruleset = this.ruleset.eval(env); - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype.eval = function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); -}; -tree.Element.prototype.toCSS = function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value == '' && this.combinator.value.charAt(0) == '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ', - '|' : env.compress ? '|' : ' | ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Extend = function Extend(elements, index) { - this.selector = new(tree.Selector)(elements); - this.index = index; -}; - -tree.Extend.prototype.eval = function Extend_eval(env, selectors) { - var selfSelectors = findSelfSelectors(selectors || env.selectors), - targetValue = this.selector.elements[0].value; - - env.frames.forEach(function(frame) { - frame.rulesets().forEach(function(rule) { - rule.selectors.forEach(function(selector) { - selector.elements.forEach(function(element, idx) { - if (element.value === targetValue) { - selfSelectors.forEach(function(_selector) { - _selector.elements[0] = new tree.Element( - element.combinator, - _selector.elements[0].value, - _selector.elements[0].index - ); - rule.selectors.push(new tree.Selector( - selector.elements - .slice(0, idx) - .concat(_selector.elements) - .concat(selector.elements.slice(idx + 1)) - )); - }); - } - }); - }); - }); - }); - return this; -}; - -function findSelfSelectors(selectors) { - var ret = []; - - (function loop(elem, i) { - if (selectors[i] && selectors[i].length) { - selectors[i].forEach(function(s) { - loop(s.elements.concat(elem), i + 1); - }); - } - else { - ret.push({ elements: elem }); - } - })([], 0); - - return ret; -} - - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports, features, once, index, rootpath) { - var that = this; - - this.once = once; - this.index = index; - this._path = path; - this.features = features && new(tree.Value)(features); - this.rootpath = rootpath; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /(\.[a-z]*$)|([\?;].*)$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css([\?;].*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (e, root, imported) { - if (e) { e.index = index } - if (imported && that.once) that.skip = imported; - that.root = root || new(tree.Ruleset)([], []); - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - // Add the base path if the import is relative - if (typeof this._path.value === "string" && !/^(?:[a-z-]+:|\/)/.test(this._path.value)) { - this._path.value = this.rootpath + this._path.value; - } - return "@import " + this._path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) return []; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.Media = function (value, features) { - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.ruleset = new(tree.Ruleset)(selectors, value); - this.ruleset.allowImports = true; -}; -tree.Media.prototype = { - toCSS: function (ctx, env) { - var features = this.features.toCSS(env); - - this.ruleset.root = (ctx.length === 0 || ctx[0].multiMedia); - return '@media ' + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - }, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)([], []); - if(this.debugInfo) { - this.ruleset.debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - media.features = this.features.eval(env); - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.ruleset); - media.ruleset = this.ruleset.eval(env); - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env) - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', 0); - return [new(tree.Selector)([el])]; - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.ruleset = new(tree.Ruleset)(selectors.slice(0), [this.ruleset]); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, filename, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.filename = filename; - this.important = important; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - if (mixin.matchArgs(args, env)) { - if (!mixin.matchCondition || mixin.matchCondition(args, env)) { - try { - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.filename, stack: e.stack }; - } - } - match = true; - } - } - if (match) { - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")`", - index: this.index, filename: this.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.filename }; - } - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - var frame = new(tree.Ruleset)(null, []), varargs, arg, params = this.params.slice(0), i, j, val, name, isNamedFound, argIndex; - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.rules.unshift(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) continue; - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.rules.unshift(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, {frames: mixinFrames}, args, _arguments), - context, rules, start, ruleset; - - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.parent.makeImportant.apply(this).rules : this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules).eval({ - frames: [this, frame].concat(mixinFrames) - }); - ruleset.originalRuleset = this; - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval({ - frames: [this.evalParams(env, {frames: this.frames.concat(env.frames)}, args, [])].concat(env.frames) - })) { return false } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (! this.variadic) { - if (argsLength < this.required) { return false } - if (argsLength > this.params.length) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - if (!a.operate) { - throw { name: "OperationError", - message: "Operation on an invalid type" }; - } - - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - toCSS: function (env) { - return '(' + this.value.toCSS(env).trim() + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ratio = function (value) { - this.value = value; -}; -tree.Ratio.prototype = { - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, - this.value.eval(context), - this.important, - this.index, this.inline); -}; - -tree.Rule.prototype.makeImportant = function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.index, this.inline); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // currrent selectors - if (!env.selectors) { - env.selectors = []; - } - env.selectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - rules = ruleset.rules[i].eval(env); - ruleset.rules.splice.apply(ruleset.rules, [i, 1].concat(rules)); - i += rules.length-1; - ruleset.resetCache(); - } - } - - if (this.selectors) { - for (var i = 0; i < this.selectors.length; i++) { - if (this.selectors[i].extend) { - this.selectors[i].extend.eval(env, [[this.selectors[i]]].concat(env.selectors.slice(1))); - } - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - env.selectors.shift(); - - if (env.mediaBlocks) { - for(var i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var i, rules; - for (i = 0; i < this.rules.length; i++) { - if (this.rules[i] instanceof tree.Import) { - rules = this.rules[i].eval(env); - if (typeof rules.length === "number") { - this.rules.splice.apply(this.rules, [i, 1].concat(rules)); - i+= rules.length-1; - } else { - this.rules.splice(i, 1, rules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - return this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - _rules = [], // - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - debugInfo, // Line number debugging - rule; - - if (! this.root) { - this.joinSelectors(paths, context, this.selectors); - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Media)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Directive) { - var cssValue = rule.toCSS(paths, env); - // Output only the first @charset definition as such - convert the others - // to comments in case debug is enabled - if (rule.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (env.charset) { - if (rule.debugInfo) { - rulesets.push(tree.debugInfo(env, rule)); - rulesets.push(new tree.Comment("/* "+cssValue.replace(/\n/g, "")+" */\n").toCSS(env)); - } - continue; - } - env.charset = true; - } - rulesets.push(cssValue); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - debugInfo = tree.debugInfo(env, this); - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : ',\n'); - - // Remove duplicates - for (var i = rules.length - 1; i >= 0; i--) { - if (_rules.indexOf(rules[i]) === -1) { - _rules.unshift(rules[i]); - } - } - rules = _rules; - - css.push(debugInfo + selector + - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for(i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for(j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length == 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0)); //new Element(el.Combinator, "")); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for(k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = new(tree.Selector)(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = new(tree.Selector)([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, 0)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for(i = 0; i < newSelectors.length; i++) { - paths.push(newSelectors[i]); - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length == 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for(i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = new(tree.Selector)(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements, extend) { - this.elements = elements; - this.extend = extend; -}; -tree.Selector.prototype.match = function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, max, i; - - oelements = other.elements.slice( - (other.elements.length && other.elements[0].value === "&") ? 1 : 0); - olen = oelements.length; - max = Math.min(len, olen) - - if (olen === 0 || len < olen) { - return false; - } else { - for (i = 0; i < max; i++) { - if (elements[i].value !== oelements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.eval = function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - }), this.extend); -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - if (this.elements[0].combinator.value === "") { - this._css = ' '; - } else { - this._css = ''; - } - - this._css += this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); - - return this._css; -}; - -})(require('../tree')); -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, rootpath) { - this.value = val; - this.rootpath = rootpath; -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + this.value.toCSS() + ")"; - }, - eval: function (ctx) { - var val = this.value.eval(ctx), rootpath; - - // Add the base path if the URL is relative - if (typeof val.value === "string" && !/^(?:[a-z-]+:|\/)/.test(val.value)) { - rootpath = this.rootpath; - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - return new(tree.URL)(val, this.rootpath); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.file, - index: this.index }; - } - - this.evaluating = true; - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { - this.evaluating = false; - return variable; - } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.file, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.debugInfo = function(env, ctx) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx)+tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/[\/:.]/g, '\\$&') + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -var name; - -function loadStyleSheet(sheet, callback, reload, remaining) { - var endOfPath = Math.max(name.lastIndexOf('/'), name.lastIndexOf('\\')), - sheetName = name.slice(0, endOfPath + 1) + sheet.href, - contents = sheet.contents || {}, - input = readFile(sheetName); - - contents[sheetName] = input; - - var parser = new less.Parser({ - paths: [sheet.href.replace(/[\w\.-]+$/, '')], - contents: contents - }); - parser.parse(input, function (e, root) { - if (e) { - return error(e, sheetName); - } - try { - callback(e, root, input, sheet, { local: false, lastModified: 0, remaining: remaining }, sheetName); - } catch(e) { - error(e, sheetName); - } - }); -} - -function writeFile(filename, content) { - var fstream = new java.io.FileWriter(filename); - var out = new java.io.BufferedWriter(fstream); - out.write(content); - out.close(); -} - -// Command line integration via Rhino -(function (args) { - var output, - compress = false, - i; - - for(i = 0; i < args.length; i++) { - switch(args[i]) { - case "-x": - compress = true; - break; - default: - if (!name) { - name = args[i]; - } else if (!output) { - output = args[i]; - } else { - print("unrecognised parameters"); - print("input_file [output_file] [-x]"); - } - } - } - - if (!name) { - print('No files present in the fileset; Check your pattern match in build.xml'); - quit(1); - } - path = name.split("/");path.pop();path=path.join("/") - - var input = readFile(name); - - if (!input) { - print('lesscss: couldn\'t open file ' + name); - quit(1); - } - - var result; - try { - var parser = new less.Parser(); - parser.parse(input, function (e, root) { - if (e) { - error(e, name); - quit(1); - } else { - result = root.toCSS({compress: compress || false}); - if (output) { - writeFile(output, result); - print("Written to " + output); - } else { - print(result); - } - quit(0); - } - }); - } - catch(e) { - error(e, name); - quit(1); - } - print("done"); -}(arguments)); - -function error(e, filename) { - - var content = "Error : " + filename + "\n"; - - filename = e.filename || filename; - - if (e.message) { - content += e.message + "\n"; - } - - var errorline = function (e, i, classname) { - if (e.extract[i]) { - content += - String(parseInt(e.line) + (i - 1)) + - ":" + e.extract[i] + "\n"; - } - }; - - if (e.stack) { - content += e.stack; - } else if (e.extract) { - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n'; - errorline(e, 0); - errorline(e, 1); - errorline(e, 2); - } - print(content); -} \ No newline at end of file diff --git a/awx/ui/static/lib/less.js/dist/less-rhino-1.5.1.js b/awx/ui/static/lib/less.js/dist/less-rhino-1.5.1.js deleted file mode 100644 index 4f4c4b63ac..0000000000 --- a/awx/ui/static/lib/less.js/dist/less-rhino-1.5.1.js +++ /dev/null @@ -1,6831 +0,0 @@ -/* LESS.js v1.5.1 RHINO | Copyright (c) 2009-2013, Alexis Sellier */ - -// -// Stub out `require` in rhino -// -function require(arg) { - var split = arg.split('/'); - var resultModule = split.length == 1 ? less.modules[split[0]] : less[split[1]]; - if (!resultModule) { - throw { message: "Cannot find module '" + arg + "'"}; - } - return resultModule; -} - - -if (typeof(window) === 'undefined') { less = {} } -else { less = window.less = {} } -tree = less.tree = {}; -less.mode = 'rhino'; - -(function() { - - console = function() { - var stdout = java.lang.System.out; - var stderr = java.lang.System.err; - - function doLog(out, type) { - return function() { - var args = java.lang.reflect.Array.newInstance(java.lang.Object, arguments.length - 1); - var format = arguments[0]; - var conversionIndex = 0; - // need to look for %d (integer) conversions because in Javascript all numbers are doubles - for (var i = 1; i < arguments.length; i++) { - var arg = arguments[i]; - if (conversionIndex != -1) { - conversionIndex = format.indexOf('%', conversionIndex); - } - if (conversionIndex >= 0 && conversionIndex < format.length) { - var conversion = format.charAt(conversionIndex + 1); - if (conversion === 'd' && typeof arg === 'number') { - arg = new java.lang.Integer(new java.lang.Double(arg).intValue()); - } - conversionIndex++; - } - args[i-1] = arg; - } - try { - out.println(type + java.lang.String.format(format, args)); - } catch(ex) { - stderr.println(ex); - } - } - } - return { - log: doLog(stdout, ''), - info: doLog(stdout, 'INFO: '), - error: doLog(stderr, 'ERROR: '), - warn: doLog(stderr, 'WARN: ') - }; - }(); - - less.modules = {}; - - less.modules.path = { - join: function() { - var parts = []; - for (i in arguments) { - parts = parts.concat(arguments[i].split(/\/|\\/)); - } - var result = []; - for (i in parts) { - var part = parts[i]; - if (part === '..' && result.length > 0) { - result.pop(); - } else if (part === '' && result.length > 0) { - // skip - } else if (part !== '.') { - if (part.slice(-1)==='\\' || part.slice(-1)==='/') { - part = part.slice(0, -1); - } - result.push(part); - } - } - return result.join('/'); - }, - dirname: function(p) { - var path = p.split('/'); - path.pop(); - return path.join('/'); - }, - basename: function(p, ext) { - var base = p.split('/').pop(); - if (ext) { - var index = base.lastIndexOf(ext); - if (base.length === index + ext.length) { - base = base.substr(0, index); - } - } - return base; - }, - extname: function(p) { - var index = p.lastIndexOf('.'); - return index > 0 ? p.substring(index) : ''; - } - }; - - less.modules.fs = { - readFileSync: function(name) { - // read a file into a byte array - var file = new java.io.File(name); - var stream = new java.io.FileInputStream(file); - var buffer = []; - var c; - while ((c = stream.read()) != -1) { - buffer.push(c); - } - stream.close(); - return { - length: buffer.length, - toString: function(enc) { - if (enc === 'base64') { - return encodeBase64Bytes(buffer); - } else if (enc) { - return java.lang.String["(byte[],java.lang.String)"](buffer, enc); - } else { - return java.lang.String["(byte[])"](buffer); - } - } - }; - } - }; - - less.encoder = { - encodeBase64: function(str) { - return encodeBase64String(str); - } - }; - - // --------------------------------------------------------------------------------------------- - // private helper functions - // --------------------------------------------------------------------------------------------- - - function encodeBase64Bytes(bytes) { - // requires at least a JRE Platform 6 (or JAXB 1.0 on the classpath) - return javax.xml.bind.DatatypeConverter.printBase64Binary(bytes) - } - function encodeBase64String(str) { - return encodeBase64Bytes(new java.lang.String(str).getBytes()); - } - -})(); - -var less, tree; - -// Node.js does not have a header file added which defines less -if (less === undefined) { - less = exports; - tree = require('./tree'); - less.mode = 'node'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser, - rootFilename = env && env.filename; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed around by reference. - if (!(env instanceof tree.parseEnv)) { - env = new tree.parseEnv(env); - } - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, currentFileInfo, importOptions, callback) { - var parserImports = this; - this.queue.push(path); - - var fileParsedFunc = function (e, root, fullPath) { - parserImports.queue.splice(parserImports.queue.indexOf(path), 1); // Remove the path from the queue - - var importedPreviously = fullPath in parserImports.files || fullPath === rootFilename; - - parserImports.files[fullPath] = root; // Store the root - - if (e && !parserImports.error) { parserImports.error = e; } - - callback(e, root, importedPreviously, fullPath); - }; - - if (less.Parser.importer) { - less.Parser.importer(path, currentFileInfo, fileParsedFunc, env); - } else { - less.Parser.fileLoader(path, currentFileInfo, function(e, contents, fullPath, newFileInfo) { - if (e) {fileParsedFunc(e); return;} - - var newEnv = new tree.parseEnv(env); - - newEnv.currentFileInfo = newFileInfo; - newEnv.processImports = false; - newEnv.contents[fullPath] = contents; - - if (currentFileInfo.reference || importOptions.reference) { - newFileInfo.reference = true; - } - - if (importOptions.inline) { - fileParsedFunc(null, contents, fullPath); - } else { - new(less.Parser)(newEnv).parse(contents, function (e, root) { - fileParsedFunc(e, root, fullPath); - }); - } - }, env); - } - } - }; - - function save() { temp = chunks[j], memo = i, current = i; } - function restore() { chunks[j] = temp, i = memo, current = i; } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - function isWhitespace(c) { - // Could change to \s? - var code = c.charCodeAt(0); - return code === 32 || code === 10 || code === 9; - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, length; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - endIndex = i + chunks[j].length, - mem = i += length; - - while (i < endIndex) { - if (! isWhitespace(input.charAt(i))) { break; } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++; } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - return tok.test(chunks[j]); - } - } - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, inputStream) { - var n = index + 1, - line = null, - column = -1; - - while (--n >= 0 && inputStream.charAt(n) !== '\n') { - column++; - } - - if (typeof index === 'number') { - line = (inputStream.slice(0, index).match(/\n/g) || "").length; - } - - return { - line: line, - column: column - }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - callLine = e.call && getLocation(e.call, input).line, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = callLine + 1; - this.callExtract = lines[callLine]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, line, lines, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - parser.imports.contents[env.currentFileInfo.filename] = input; - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length;) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - } - } - - switch (c) { - case '{': - if (!inParam) { - level++; - chunk.push(c); - break; - } - /* falls through */ - case '}': - if (!inParam) { - level--; - chunk.push(c); - chunks[++j] = chunk = []; - break; - } - /* falls through */ - case '(': - if (!inParam) { - inParam = true; - chunk.push(c); - break; - } - /* falls through */ - case ')': - if (inParam) { - inParam = false; - chunk.push(c); - break; - } - /* falls through */ - default: - chunk.push(c); - } - - i++; - } - if (level !== 0) { - error = new(LessError)({ - index: i-1, - type: 'Parse', - message: (level > 0) ? "missing closing `}`" : "missing opening `{`", - filename: env.currentFileInfo.filename - }, env); - } - - return chunks.map(function (c) { return c.join(''); }); - })([[]]); - - if (error) { - return callback(new(LessError)(error, env)); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - return function (options, variables) { - options = options || {}; - var evaldRoot, - css, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, null, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var preEvalVisitors = [], - visitors = [ - new(tree.joinSelectorVisitor)(), - new(tree.processExtendsVisitor)(), - new(tree.toCSSVisitor)({compress: Boolean(options.compress)}) - ], i, root = this; - - if (options.plugins) { - for(i =0; i < options.plugins.length; i++) { - if (options.plugins[i].isPreEvalVisitor) { - preEvalVisitors.push(options.plugins[i]); - } else { - if (options.plugins[i].isPreVisitor) { - visitors.splice(0, 0, options.plugins[i]); - } else { - visitors.push(options.plugins[i]); - } - } - } - } - - for(i = 0; i < preEvalVisitors.length; i++) { - preEvalVisitors[i].run(root); - } - - evaldRoot = evaluate.call(root, evalEnv); - - for(i = 0; i < visitors.length; i++) { - visitors[i].run(evaldRoot); - } - - if (options.sourceMap) { - evaldRoot = new tree.sourceMapOutput( - { - writeSourceMap: options.writeSourceMap, - rootNode: evaldRoot, - contentsMap: parser.imports.contents, - sourceMapFilename: options.sourceMapFilename, - sourceMapURL: options.sourceMapURL, - outputFilename: options.sourceMapOutputFilename, - sourceMapBasepath: options.sourceMapBasepath, - sourceMapRootpath: options.sourceMapRootpath, - outputSourceFiles: options.outputSourceFiles, - sourceMapGenerator: options.sourceMapGenerator - }); - } - - css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits)}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.cleancss && less.mode === 'node') { - var CleanCSS = require('clean-css'), - cleancssOptions = options.cleancssOptions || {}; - - if (cleancssOptions.keepSpecialComments === undefined) { - cleancssOptions.keepSpecialComments = "*"; - } - cleancssOptions.processImport = false; - cleancssOptions.noRebase = true; - if (cleancssOptions.noAdvanced === undefined) { - cleancssOptions.noAdvanced = true; - } - - return new CleanCSS(cleancssOptions).minify(css); - } else if (options.compress) { - return css.replace(/(^(\s)+)|((\s)+$)/g, ""); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - var loc = getLocation(i, input); - lines = input.split('\n'); - line = loc.line + 1; - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: loc.column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - return callback(e); - } - else { - return callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - return finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.extendRule) || $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/) || $(/^;+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') { return; } - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true, i, env.currentFileInfo); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment, false, i, env.currentFileInfo); - } - }, - - comments: function () { - var comment, comments = []; - - while(comment = $(this.comment)) { - comments.push(comment); - } - - return comments; - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++, e = true; } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; } - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - var color = tree.Color.fromKeyword(k); - if (color) { - return color; - } - return new(tree.Keyword)(k); - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) { return; } - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null; } - else { i += name.length; } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { - break; - } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted) || - $(this.entities.unicodeDescriptor); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) { - return; - } - - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - /*jshint eqnull:true */ - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) { - return; - } - - if (value = $(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - if (ud = $(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/)) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '`') { return; } - if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) { - error("You are using JavaScript, which has been disabled."); - } - - if (e) { $('~'); } - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1]; } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList = []; - - if (!$(isRule ? /^&:extend\(/ : /^:extend\(/)) { return; } - - do { - option = null; - elements = []; - while (true) { - option = $(/^(all)(?=\s*(\)|,))/); - if (option) { break; } - e = $(this.element); - if (!e) { break; } - elements.push(e); - } - - option = option && option[1]; - - extendList.push(new(tree.Extend)(new(tree.Selector)(elements), option, index)); - - } while($(",")); - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i), important = false; - - if (s !== '.' && s !== '#') { return; } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i, env.currentFileInfo)); - c = $('>'); - } - if ($('(')) { - args = this.mixin.args.call(this, true).args; - expect(')'); - } - - args = args || []; - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - - restore(); - }, - args: function (isCall) { - var expressions = [], argsSemiColon = [], isSemiColonSeperated, argsComma = [], expressionContainsNamed, name, nameLoop, value, arg, - returner = {args:null, variadic: false}; - while (true) { - if (isCall) { - arg = $(this.expression); - } else { - $(this.comments); - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value.length == 1) { - val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(this.expression); - nameLoop = (name = val.name); - } else if (!isCall && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($(',')) { - continue; - } - - if ($(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) { - return; - } - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - var argInfo = this.mixin.args.call(this, false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - $(this.comments); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) ||$(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) { return; } - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^()@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(')) { - if ((v = ($(this.selector))) && - $(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, i, env.currentFileInfo); } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|') { - i++; - while (input.charAt(i).match(/\s/)) { i++; } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - // - // A CSS selector (see selector below) - // with less extensions e.g. the ability to extend and guard - // - lessSelector: function () { - return this.selector(true); - }, - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function (isLess) { - var e, elements = [], c, extend, extendList = [], when, condition; - - while ((isLess && (extend = $(this.extend))) || (isLess && (when = $(/^when/))) || (e = $(this.element))) { - if (when) { - condition = expect(this.conditions, 'expected condition'); - } else if (condition) { - error("CSS guard can only be used at the end of selector"); - } else if (extend) { - extendList.push.apply(extendList, extend); - } else { - if (extendList.length) { - error("Extend can only be used at the end of selector"); - } - c = input.charAt(i); - elements.push(e); - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { - break; - } - } - - if (elements.length > 0) { return new(tree.Selector)(elements, extendList, condition, i, env.currentFileInfo); } - if (extendList.length) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - var key, val, op; - - if (! $('[')) { return; } - - if (!(key = $(this.entities.variableCurly))) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - if ((op = $(/^[|~*$^]?=/))) { - val = $(this.entities.quoted) || $(/^[0-9]+%/) || $(/^[\w-]+/) || $(this.entities.variableCurly); - } - - expect(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - while (s = $(this.lessSelector)) { - selectors.push(s); - $(this.comments); - if (! $(',')) { break; } - if (s.condition) { - error("Guards are only currently allowed on a single selector."); - } - $(this.comments); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) { - ruleset.debugInfo = debugInfo; - } - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, c = input.charAt(i), important, merge = false; - save(); - - if (c === '.' || c === '#' || c === '&') { return; } - - if (name = $(this.variable) || $(this.ruleProperty)) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || (name.charAt(0) === '@')) ? - ($(this.value) || $(this.anonymousValue)) : - ($(this.anonymousValue) || $(this.value)); - - - important = $(this.important); - if (name[name.length-1] === "+") { - merge = true; - name = name.substr(0, name.length - 1); - } - - if (value && $(this.end)) { - return new (tree.Rule)(name, value, important, merge, memo, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } - }, - anonymousValue: function () { - var match; - if (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j])) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import?\s+/); - - var options = (dir ? $(this.importOptions) : null) || {}; - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $('(')) { return null; } - do { - if (o = $(this.importOption)) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $(',')) { break; } - } - } while (o); - expect(')'); - return options; - }, - - importOption: function() { - var opt = $(/^(less|css|multiple|once|inline|reference)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = ($(this.entities.keyword) || $(this.entities.variable))) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.value); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null; } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break; } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break; } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - media.debugInfo = debugInfo; - } - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression, identifier; - - if (input.charAt(i) !== '@') { return; } - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - if (!name) { return; } - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@host": - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - identifier = ($(/^[^{]+/) || '').trim(); - if (identifier) { - name += " " + identifier; - } - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules, i, env.currentFileInfo); - } - } else { - if ((value = hasExpression ? $(this.expression) : $(this.entity)) && $(';')) { - var directive = new(tree.Directive)(name, value, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = []; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break; } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($('(')) { - if (a = $(this.addition)) { - e = new(tree.Expression)([a]); - expect(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced; - if (m = $(this.operand)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while (!peek(/^\/[*\/]/) && (op = ($('/') || $('*')))) { - if (a = $(this.operand)) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } else { - break; - } - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - if (m = $(this.multiplication)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while ((op = $(/^[-+]\s+/) || (!isSpaced && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while (peek(/^,\s*(not\s*)?\(/) && $(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true; } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|<=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-'); } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = []; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/) && (delim = $('/'))) { - entities.push(new(tree.Anonymous)(delim)); - } - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/)) { - return name[1]; - } - }, - ruleProperty: function () { - var name; - - if (name = $(/^(\*?-?[_a-zA-Z0-9-]+)\s*(\+?)\s*:/)) { - return name[1] + (name[2] || ""); - } - } - } - }; -}; - - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 255); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; } - else if (h * 2 < 1) { return m2; } - else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; } - else { return m1; } - } - - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - // filter: saturate(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if ((color.luma() * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - /*jshint loopfunc:true */ - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - if(!(val instanceof tree.Dimension)) { - throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") }; - } - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return this._math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _math: function (fn, unit, n) { - if (n instanceof tree.Dimension) { - /*jshint eqnull:true */ - return new(tree.Dimension)(fn(parseFloat(n.value)), unit == null ? n.unit : unit); - } else if (typeof(n) === 'number') { - return fn(n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - _minmax: function (isMin, args) { - args = Array.prototype.slice.call(args); - switch(args.length) { - case 0: throw { type: "Argument", message: "one or more arguments required" }; - case 1: return args[0]; - } - var i, j, current, currentUnified, referenceUnified, unit, - order = [], // elems only contains original argument values. - values = {}; // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - for (i = 0; i < args.length; i++) { - current = args[i]; - if (!(current instanceof tree.Dimension)) { - order.push(current); - continue; - } - currentUnified = current.unify(); - unit = currentUnified.unit.toString(); - j = values[unit]; - if (j === undefined) { - values[unit] = order.length; - order.push(current); - continue; - } - referenceUnified = order[j].unify(); - if ( isMin && currentUnified.value < referenceUnified.value || - !isMin && currentUnified.value > referenceUnified.value) { - order[j] = current; - } - } - if (order.length == 1) { - return order[0]; - } - args = order.map(function (a) { return a.toCSS(this.env); }) - .join(this.env.compress ? "," : ", "); - return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")"); - }, - min: function () { - return this._minmax(true, arguments); - }, - max: function () { - return this._minmax(false, arguments); - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - var colorCandidate = n.value, - returnColor; - returnColor = tree.Color.fromKeyword(colorCandidate); - if (returnColor) { - return returnColor; - } - if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) { - return new(tree.Color)(colorCandidate.slice(1)); - } - throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" }; - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - return Array.isArray(values.value) - ? values.value[index] : Array(values)[index]; - }, - length: function(values) { - var n = Array.isArray(values.value) ? values.value.length : 1; - return new tree.Dimension(n); - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require('fs'), - path = require('path'), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) { mimetype += ';base64'; } - } - else { - useBase64 = /;base64$/.test(mimetype); - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "'data:" + mimetype + ',' + buf + "'"; - return new(tree.URL)(new(tree.Anonymous)(uri)); - }, - - "svg-gradient": function(direction) { - - function throwArgumentDescriptor() { - throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" }; - } - - if (arguments.length < 3) { - throwArgumentDescriptor(); - } - var stops = Array.prototype.slice.call(arguments, 1), - gradientDirectionSvg, - gradientType = "linear", - rectangleDimension = 'x="0" y="0" width="1" height="1"', - useBase64 = true, - renderEnv = {compress: false}, - returner, - directionValue = direction.toCSS(renderEnv), - i, color, position, positionValue, alpha; - - switch (directionValue) { - case "to bottom": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - gradientType = "radial"; - gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" }; - } - returner = '' + - '' + - '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>'; - - for (i = 0; i < stops.length; i+= 1) { - if (stops[i].value) { - color = stops[i].value[0]; - position = stops[i].value[1]; - } else { - color = stops[i]; - position = undefined; - } - - if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) { - throwArgumentDescriptor(); - } - positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%"; - alpha = color.alpha; - returner += ''; - } - returner += '' + - ''; - - if (useBase64) { - try { - returner = require('./encoder').encodeBase64(returner); // TODO browser implementation - } catch(e) { - useBase64 = false; - } - } - - returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'"; - return new(tree.URL)(new(tree.Anonymous)(returner)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -var mathFunctions = [{name:"ceil"}, {name:"floor"}, {name: "sqrt"}, {name:"abs"}, - {name:"tan", unit: ""}, {name:"sin", unit: ""}, {name:"cos", unit: ""}, - {name:"atan", unit: "rad"}, {name:"asin", unit: "rad"}, {name:"acos", unit: "rad"}], - createMathFunction = function(name, unit) { - return function(n) { - /*jshint eqnull:true */ - if (unit != null) { - n = n.unify(); - } - return this._math(Math[name], unit, n); - }; - }; - -for(var i = 0; i < mathFunctions.length; i++) { - tree.functions[mathFunctions[i].name] = createMathFunction(mathFunctions[i].name, mathFunctions[i].unit); -} - -// Color Blending -// ref: http://www.w3.org/TR/compositing-1 - -function colorBlend(mode, color1, color2) { - var ab = color1.alpha, cb, // backdrop - as = color2.alpha, cs, // source - ar, cr, r = []; // result - - ar = as + ab * (1 - as); - for (var i = 0; i < 3; i++) { - cb = color1.rgb[i] / 255; - cs = color2.rgb[i] / 255; - cr = mode(cb, cs); - if (ar) { - cr = (as * cs + ab * (cb - - as * (cb + cs - cr))) / ar; - } - r[i] = cr * 255; - } - - return new(tree.Color)(r, ar); -} - -var colorBlendMode = { - multiply: function(cb, cs) { - return cb * cs; - }, - screen: function(cb, cs) { - return cb + cs - cb * cs; - }, - overlay: function(cb, cs) { - cb *= 2; - return (cb <= 1) - ? colorBlendMode.multiply(cb, cs) - : colorBlendMode.screen(cb - 1, cs); - }, - softlight: function(cb, cs) { - var d = 1, e = cb; - if (cs > 0.5) { - e = 1; - d = (cb > 0.25) ? Math.sqrt(cb) - : ((16 * cb - 12) * cb + 4) * cb; - } - return cb - (1 - 2 * cs) * e * (d - cb); - }, - hardlight: function(cb, cs) { - return colorBlendMode.overlay(cs, cb); - }, - difference: function(cb, cs) { - return Math.abs(cb - cs); - }, - exclusion: function(cb, cs) { - return cb + cs - 2 * cb * cs; - }, - - // non-w3c functions: - average: function(cb, cs) { - return (cb + cs) / 2; - }, - negation: function(cb, cs) { - return 1 - Math.abs(cb + cs - 1); - } -}; - -function colorBlendInit() { - for (var f in colorBlendMode) { - tree.functions[f] = colorBlend.bind(null, colorBlendMode[f]); - } -} colorBlendInit(); - -// ~ End of Color Blending - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); - -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); - -(function (tree) { - -tree.debugInfo = function(env, ctx, lineSeperator) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:/\\])/g, function (a) { - if (a == '\\') { - a = '\/'; - } - return '\\' + a; - }) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r; } - } - return null; -}; - -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false); }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -tree.toCSS = function (env) { - var strs = []; - this.genCSS(env, { - add: function(chunk, fileInfo, index) { - strs.push(chunk); - }, - isEmpty: function () { - return strs.length === 0; - } - }); - return strs.join(''); -}; - -tree.outputRuleset = function (env, output, rules) { - output.add((env.compress ? '{' : ' {\n')); - env.tabLevel = (env.tabLevel || 0) + 1; - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "); - for(var i = 0; i < rules.length; i++) { - output.add(tabRuleStr); - rules[i].genCSS(env, output); - output.add(env.compress ? '' : '\n'); - } - env.tabLevel--; - output.add(tabSetStr + "}"); -}; - -})(require('./tree')); - -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } - return this; - }, - genCSS: function (env, output) { - output.add("alpha(opacity="); - - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - - output.add(")"); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Anonymous = function (string, index, currentFileInfo, mapLines) { - this.value = string.value || string; - this.index = index; - this.mapLines = mapLines; - this.currentFileInfo = currentFileInfo; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - eval: function () { return this; }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - }, - genCSS: function (env, output) { - output.add(this.value, this.currentFileInfo, this.index, this.mapLines); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - }, - genCSS: function (env, output) { - output.add(this.key + '='); - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - this.args = visitor.visit(this.args); - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - /*jshint eqnull:true */ - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - return new tree.Call(this.name, args, this.index, this.currentFileInfo); - }, - - genCSS: function (env, output) { - output.add(this.name + "(", this.currentFileInfo, this.index); - - for(var i = 0; i < this.args.length; i++) { - this.args[i].genCSS(env, output); - if (i + 1 < this.args.length) { - output.add(", "); - } - } - - output.add(")"); - }, - - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; - -var transparentKeyword = "transparent"; - -tree.Color.prototype = { - type: "Color", - eval: function () { return this; }, - luma: function () { return (0.2126 * this.rgb[0] / 255) + (0.7152 * this.rgb[1] / 255) + (0.0722 * this.rgb[2] / 255); }, - - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress; - - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - if (this.alpha < 1.0) { - if (this.alpha === 0 && this.isTransparentKeyword) { - return transparentKeyword; - } - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.toRGB(); - - if (compress) { - var splitcolor = color.split(''); - - // Convert color to short format - if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) { - color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5]; - } - } - - return color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var rgb = []; - var alpha = this.alpha * (1 - other.alpha) + other.alpha; - for (var c = 0; c < 3; c++) { - rgb[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(rgb, alpha); - }, - - toRGB: function () { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - -tree.Color.fromKeyword = function(keyword) { - if (tree.colors.hasOwnProperty(keyword)) { - // detect named color - return new(tree.Color)(tree.colors[keyword].slice(1)); - } - if (keyword === transparentKeyword) { - var transparent = new(tree.Color)([0, 0, 0], 0); - transparent.isTransparentKeyword = true; - return transparent; - } -}; - - -})(require('../tree')); - -(function (tree) { - -tree.Comment = function (value, silent, index, currentFileInfo) { - this.value = value; - this.silent = !!silent; - this.currentFileInfo = currentFileInfo; -}; -tree.Comment.prototype = { - type: "Comment", - genCSS: function (env, output) { - if (this.debugInfo) { - output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index); - } - output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n - }, - toCSS: tree.toCSS, - isSilent: function(env) { - var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced), - isCompressed = env.compress && !this.value.match(/^\/\*!/); - return this.silent || isReference || isCompressed; - }, - eval: function () { return this; }, - markReferenced: function () { - this.isReferenced = true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<' || op === '<='; - case 0: return op === '=' || op === '>=' || op === '=<' || op === '<='; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); - -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - genCSS: function (env, output) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = this.value, - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && this.unit.isLength()) { - output.add(strValue); - return; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - output.add(strValue); - this.unit.genCSS(env, output); - }, - toCSS: tree.toCSS, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - /*jshint noempty:false */ - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a = this.unify(), b = other.unify(), - aValue = a.value, bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - if (!b.unit.isEmpty() && a.unit.compare(b.unit) !== 0) { - return -1; - } - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'm', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, targetUnit, derivedConversions = {}, applyUnit; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - applyUnit = function (atomicUnit, denominator) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(applyUnit); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - genCSS: function (env, output) { - if (this.numerator.length >= 1) { - output.add(this.numerator[0]); - } else - if (this.denominator.length >= 1) { - output.add(this.denominator[0]); - } else - if ((!env || !env.strictUnits) && this.backupUnit) { - output.add(this.backupUnit); - } - }, - toCSS: tree.toCSS, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isLength: function () { - return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/)); - }, - - isEmpty: function () { - return this.numerator.length === 0 && this.denominator.length === 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length === 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, result = {}, mapUnit; - - mapUnit = function (atomicUnit) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }; - - for (var groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(mapUnit); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Directive = function (name, value, index, currentFileInfo) { - this.name = name; - - if (Array.isArray(value)) { - this.rules = [new(tree.Ruleset)([], value)]; - this.rules[0].allowImports = true; - } else { - this.value = value; - } - this.currentFileInfo = currentFileInfo; - -}; -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - this.rules = visitor.visit(this.rules); - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name, this.currentFileInfo, this.index); - if (this.rules) { - tree.outputRuleset(env, output, this.rules); - } else { - output.add(' '); - this.value.genCSS(env, output); - output.add(';'); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var evaldDirective = this; - if (this.rules) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name, null, this.index, this.currentFileInfo); - evaldDirective.rules = [this.rules[0].eval(env)]; - evaldDirective.rules[0].root = true; - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - markReferenced: function () { - var i, rules; - this.isReferenced = true; - if (this.rules) { - rules = this.rules[0].rules; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Element = function (combinator, value, index, currentFileInfo) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - this.combinator = visitor.visit(this.combinator); - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index, - this.currentFileInfo); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env), this.currentFileInfo, this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value === '' && this.combinator.value.charAt(0) === '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - _outputMap: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : ' + ', - '~' : ' ~ ', - '>' : ' > ', - '|' : '|' - }, - _outputMapCompressed: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : '+', - '~' : '~', - '>' : '>', - '|' : '|' - }, - genCSS: function (env, output) { - output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - genCSS: function (env, output) { - for(var i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i + 1 < this.value.length) { - output.add(" "); - } - } - }, - toCSS: tree.toCSS, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i, - selectorElements; - - for(i = 0; i < selectors.length; i++) { - selectorElements = selectors[i].elements; - // duplicate the logic in genCSS function inside the selector node. - // future TODO - move both logics into the selector joiner visitor - if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") { - selectorElements[0].combinator.value = ' '; - } - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); - -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined || this.options.inline) { - this.css = !this.options.less || this.options.inline; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.path = visitor.visit(this.path); - if (!this.options.inline) { - this.root = visitor.visit(this.root); - } - }, - genCSS: function (env, output) { - if (this.css) { - output.add("@import ", this.currentFileInfo, this.index); - this.path.genCSS(env, output); - if (this.features) { - output.add(" "); - this.features.genCSS(env, output); - } - output.add(';'); - } - }, - toCSS: tree.toCSS, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - - if (!(path instanceof tree.URL)) { - if (rootpath) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath +pathValue; - } - } - path.value = env.normalizePath(path.value); - } - - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { return []; } - - if (this.options.inline) { - //todo needs to reference css file not import - var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true); - return this.features ? new(tree.Media)([contents], this.features.value) : [contents]; - } else if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - /*jshint loopfunc:true */ - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message.replace(/["]/g, "'") + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Keyword = function (value) { this.value = value; }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); - -(function (tree) { - -tree.Media = function (value, features, index, currentFileInfo) { - this.index = index; - this.currentFileInfo = currentFileInfo; - - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.rules = [new(tree.Ruleset)(selectors, value)]; - this.rules[0].allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.rules = visitor.visit(this.rules); - }, - genCSS: function (env, output) { - output.add('@media ', this.currentFileInfo, this.index); - this.features.genCSS(env, output); - tree.outputRuleset(env, output, this.rules); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)([], [], this.index, this.currentFileInfo); - if(this.debugInfo) { - this.rules[0].debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.rules[0]); - media.rules = [this.rules[0].eval(env)]; - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env); - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', this.index, this.currentFileInfo); - return [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)]; - }, - markReferenced: function () { - var i, rules = this.rules[0].rules; - this.isReferenced = true; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])]; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - this.arguments = visitor.visit(this.arguments); - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - if (mixin.matchArgs(args, env)) { - if (!mixin.matchCondition || mixin.matchCondition(args, env)) { - try { - if (!(mixin instanceof tree.mixin.Definition)) { - mixin = new tree.mixin.Definition("", [], mixin.rules, null, false); - mixin.originalRuleset = mixins[m].originalRuleset || mixins[m]; - } - //if (this.important) { - // isImportant = env.isImportant; - // env.isImportant = true; - //} - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - //if (this.important) { - // env.isImportant = isImportant; - //} - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - match = true; - } - } - if (match) { - if (!this.currentFileInfo || !this.currentFileInfo.reference) { - for (i = 0; i < rules.length; i++) { - rule = rules[i]; - if (rule.markReferenced) { - rule.markReferenced(); - } - } - } - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")`", - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1; } - else { return count; } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - this.params = visitor.visit(this.params); - this.rules = visitor.visit(this.rules); - this.condition = visitor.visit(this.condition); - }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - /*jshint boss:true */ - var frame = new(tree.Ruleset)(null, []), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.rules.unshift(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) { continue; } - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.rules.unshift(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - rules, ruleset; - - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules); - ruleset.originalRuleset = this; - ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames))); - if (important) { - ruleset = this.parent.makeImportant.apply(ruleset); - } - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] // the parameter variables - .concat(this.frames) // the parent namespace/mixin frames - .concat(env.frames)))) { // the current environment frames - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (! this.variadic) { - if (argsLength < this.required) { return false; } - if (argsLength > this.params.length) { return false; } - } else { - if (argsLength < (this.required - 1)) { return false; } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('-'); - this.value.genCSS(env, output); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env); - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - a = a.toColor(); - } - if (b instanceof tree.Dimension && a instanceof tree.Color) { - b = b.toColor(); - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - genCSS: function (env, output) { - this.operands[0].genCSS(env, output); - if (this.isSpaced) { - output.add(" "); - } - output.add(this.op); - if (this.isSpaced) { - output.add(" "); - } - this.operands[1].genCSS(env, output); - }, - toCSS: tree.toCSS -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('('); - this.value.genCSS(env, output); - output.add(')'); - }, - toCSS: tree.toCSS, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - genCSS: function (env, output) { - if (!this.escaped) { - output.add(this.quote, this.currentFileInfo, this.index); - } - output.add(this.value); - if (!this.escaped) { - output.add(this.quote); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.merge = merge; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - this.variable = (name.charAt(0) === '@'); -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index); - try { - this.value.genCSS(env, output); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index); - }, - toCSS: tree.toCSS, - eval: function (env) { - var strictMathBypass = false; - if (this.name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - return new(tree.Rule)(this.name, - this.value.eval(env), - this.important, - this.merge, - this.index, this.currentFileInfo, this.inline); - } - catch(e) { - if (e.index === undefined) { - e.index = this.index; - } - throw e; - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.merge, - this.index, this.currentFileInfo, this.inline); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - if (this.paths) { - for(var i = 0; i < this.paths.length; i++) { - this.paths[i] = visitor.visit(this.paths[i]); - } - } else { - this.selectors = visitor.visit(this.selectors); - } - this.rules = visitor.visit(this.rules); - }, - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env); }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules; - var rule; - var i; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // currrent selectors - if (!env.selectors) { - env.selectors = []; - } - env.selectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - /*jshint loopfunc:true */ - rules = ruleset.rules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - ruleset.rules.splice.apply(ruleset.rules, [i, 1].concat(rules)); - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (i = 0; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - env.selectors.shift(); - - if (env.mediaBlocks) { - for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var i, rules; - for (i = 0; i < this.rules.length; i++) { - if (this.rules[i] instanceof tree.Import) { - rules = this.rules[i].eval(env); - if (typeof rules.length === "number") { - this.rules.splice.apply(this.rules, [i, 1].concat(rules)); - i+= rules.length-1; - } else { - this.rules.splice(i, 1, rules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - matchCondition: function (args, env) { - var lastSelector = this.selectors[this.selectors.length-1]; - if (lastSelector.condition && - !lastSelector.condition.eval( - new(tree.evalEnv)(env, - env.frames))) { - return false; - } - return true; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (this._variables) { return this._variables; } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - return this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - }, - find: function (selector, self) { - self = self || this; - var rules = [], match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key]; } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > match) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(match)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - genCSS: function (env, output) { - var i, j, - ruleNodes = [], - rulesetNodes = [], - debugInfo, // Line number debugging - rule, - firstRuleset = true, - path; - - env.tabLevel = (env.tabLevel || 0); - - if (!this.root) { - env.tabLevel++; - } - - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "); - - for (i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - if (rule.rules || (rule instanceof tree.Media) || rule instanceof tree.Directive || (this.root && rule instanceof tree.Comment)) { - rulesetNodes.push(rule); - } else { - ruleNodes.push(rule); - } - } - - // If this is the root node, we don't render - // a selector, or {}. - if (!this.root) { - debugInfo = tree.debugInfo(env, this, tabSetStr); - - if (debugInfo) { - output.add(debugInfo); - output.add(tabSetStr); - } - - for(i = 0; i < this.paths.length; i++) { - path = this.paths[i]; - env.firstSelector = true; - for(j = 0; j < path.length; j++) { - path[j].genCSS(env, output); - env.firstSelector = false; - } - if (i + 1 < this.paths.length) { - output.add(env.compress ? ',' : (',\n' + tabSetStr)); - } - } - - output.add((env.compress ? '{' : ' {\n') + tabRuleStr); - } - - // Compile rules and rulesets - for (i = 0; i < ruleNodes.length; i++) { - rule = ruleNodes[i]; - - // @page{ directive ends up with root elements inside it, a mix of rules and rulesets - // In this instance we do not know whether it is the last property - if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) { - env.lastRule = true; - } - - if (rule.genCSS) { - rule.genCSS(env, output); - } else if (rule.value) { - output.add(rule.value.toString()); - } - - if (!env.lastRule) { - output.add(env.compress ? '' : ('\n' + tabRuleStr)); - } else { - env.lastRule = false; - } - } - - if (!this.root) { - output.add((env.compress ? '}' : '\n' + tabSetStr + '}')); - env.tabLevel--; - } - - for (i = 0; i < rulesetNodes.length; i++) { - if (ruleNodes.length && firstRuleset) { - output.add((env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr)); - } - if (!firstRuleset) { - output.add((env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr)); - } - firstRuleset = false; - rulesetNodes[i].genCSS(env, output); - } - - if (!output.isEmpty() && !env.compress && this.firstRoot) { - output.add('\n'); - } - }, - - toCSS: tree.toCSS, - - markReferenced: function () { - for (var s = 0; s < this.selectors.length; s++) { - this.selectors[s].markReferenced(); - } - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for (i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for (j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length === 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0, el.index, el.currentFileInfo)); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for (k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = selector.createDerived([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for (i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length === 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for (i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); - -(function (tree) { - -tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) { - this.elements = elements; - this.extendList = extendList || []; - this.condition = condition; - this.currentFileInfo = currentFileInfo || {}; - this.isReferenced = isReferenced; - if (!condition) { - this.evaldCondition = true; - } -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - this.elements = visitor.visit(this.elements); - this.extendList = visitor.visit(this.extendList); - this.condition = visitor.visit(this.condition); - }, - createDerived: function(elements, extendList, evaldCondition) { - /*jshint eqnull:true */ - evaldCondition = evaldCondition != null ? evaldCondition : this.evaldCondition; - var newSelector = new(tree.Selector)(elements, extendList || this.extendList, this.condition, this.index, this.currentFileInfo, this.isReferenced); - newSelector.evaldCondition = evaldCondition; - return newSelector; - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, max, i; - - oelements = other.elements.slice( - (other.elements.length && other.elements[0].value === "&") ? 1 : 0); - olen = oelements.length; - max = Math.min(len, olen); - - if (olen === 0 || len < olen) { - return 0; - } else { - for (i = 0; i < max; i++) { - if (elements[i].value !== oelements[i].value) { - return 0; - } - } - } - return max; // return number of matched selectors - }, - eval: function (env) { - var evaldCondition = this.condition && this.condition.eval(env); - - return this.createDerived(this.elements.map(function (e) { - return e.eval(env); - }), this.extendList.map(function(extend) { - return extend.eval(env); - }), evaldCondition); - }, - genCSS: function (env, output) { - var i, element; - if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") { - output.add(' ', this.currentFileInfo, this.index); - } - if (!this._css) { - //TODO caching? speed comparison? - for(i = 0; i < this.elements.length; i++) { - element = this.elements[i]; - element.genCSS(env, output); - } - } - }, - toCSS: tree.toCSS, - markReferenced: function () { - this.isReferenced = true; - }, - getIsReferenced: function() { - return !this.currentFileInfo.reference || this.isReferenced; - }, - getIsOutput: function() { - return this.evaldCondition; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - eval: function () { return this; } -}; - -})(require('../tree')); - -(function (tree) { - -tree.URL = function (val, currentFileInfo) { - this.value = val; - this.currentFileInfo = currentFileInfo; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add("url("); - this.value.genCSS(env, output); - output.add(")"); - }, - toCSS: tree.toCSS, - eval: function (ctx) { - var val = this.value.eval(ctx), rootpath; - - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - val.value = ctx.normalizePath(val.value); - - return new(tree.URL)(val, null); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - genCSS: function (env, output) { - var i; - for(i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i+1 < this.value.length) { - output.add((env && env.compress) ? ',' : ', '); - } - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { - this.name = name; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') === 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { - this.evaluating = false; - return variable; - } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); - -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // browser-only, contents of all the files - 'relativeUrls', // option - whether to adjust URL's to be relative - 'rootpath', // option - rootpath to append to URL's - 'strictImports', // option - - 'insecure', // option - whether to allow imports from insecure ssl hosts - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true - 'mime', // browser only - mime type for sheet import - 'useFileCache', // browser only - whether to use the per file session cache - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' - absolute path to the entry file - // 'reference' - whether the file should not be output and only output parts that are referenced - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits', // whether units need to evaluate correctly - 'cleancss', // whether to compress with clean-css - 'sourceMap', // whether to output a source map - 'importMultiple'// whether we are currently importing multiple copies - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - tree.evalEnv.prototype.normalizePath = function( path ) { - var - segments = path.split("/").reverse(), - segment; - - path = []; - while (segments.length !== 0 ) { - segment = segments.pop(); - switch( segment ) { - case ".": - break; - case "..": - if ((path.length === 0) || (path[path.length - 1] === "..")) { - path.push( segment ); - } else { - path.pop(); - } - break; - default: - path.push( segment ); - break; - } - } - - return path.join("/"); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.visitor = function(implementation) { - this._implementation = implementation; - }; - - tree.visitor.prototype = { - visit: function(node) { - - if (node instanceof Array) { - return this.visitArray(node); - } - - if (!node || !node.type) { - return node; - } - - var funcName = "visit" + node.type, - func = this._implementation[funcName], - visitArgs, newNode; - if (func) { - visitArgs = {visitDeeper: true}; - newNode = func.call(this._implementation, node, visitArgs); - if (this._implementation.isReplacing) { - node = newNode; - } - } - if ((!visitArgs || visitArgs.visitDeeper) && node && node.accept) { - node.accept(this); - } - funcName = funcName + "Out"; - if (this._implementation[funcName]) { - this._implementation[funcName](node); - } - return node; - }, - visitArray: function(nodes) { - var i, newNodes = []; - for(i = 0; i < nodes.length; i++) { - var evald = this.visit(nodes[i]); - if (evald instanceof Array) { - evald = this.flatten(evald); - newNodes = newNodes.concat(evald); - } else { - newNodes.push(evald); - } - } - if (this._implementation.isReplacing) { - return newNodes; - } - return nodes; - }, - doAccept: function (node) { - node.accept(this); - }, - flatten: function(arr, master) { - return arr.reduce(this.flattenReduce.bind(this), master || []); - }, - flattenReduce: function(sum, element) { - if (element instanceof Array) { - sum = this.flatten(element, sum); - } else { - sum.push(element); - } - return sum; - } - }; - -})(require('./tree')); -(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode, - inlineCSS = importNode.options.inline; - - if (!importNode.css || inlineCSS) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - - if (importNode.options.multiple) { - env.importMultiple = true; - } - - this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, imported, fullPath) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - - if (imported && !env.importMultiple) { importNode.skip = imported; } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - importNode.importedFilename = fullPath; - if (!inlineCSS && !importNode.skip) { - new(tree.importVisitor)(importVisitor._importer, subFinish, env) - .run(root); - return; - } - } - - subFinish(); - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree')); -(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - var paths = []; - this.contexts.push(paths); - - if (! rulesetNode.root) { - rulesetNode.selectors = rulesetNode.selectors.filter(function(selector) { return selector.getIsOutput(); }); - if (rulesetNode.selectors.length === 0) { - rulesetNode.rules.length = 0; - } - rulesetNode.joinSelectors(paths, context, rulesetNode.selectors); - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree')); -(function (tree) { - tree.toCSSVisitor = function(env) { - this._visitor = new tree.visitor(this); - this._env = env; - }; - - tree.toCSSVisitor.prototype = { - isReplacing: true, - run: function (root) { - return this._visitor.visit(root); - }, - - visitRule: function (ruleNode, visitArgs) { - if (ruleNode.variable) { - return []; - } - return ruleNode; - }, - - visitMixinDefinition: function (mixinNode, visitArgs) { - return []; - }, - - visitExtend: function (extendNode, visitArgs) { - return []; - }, - - visitComment: function (commentNode, visitArgs) { - if (commentNode.isSilent(this._env)) { - return []; - } - return commentNode; - }, - - visitMedia: function(mediaNode, visitArgs) { - mediaNode.accept(this._visitor); - visitArgs.visitDeeper = false; - - if (!mediaNode.rules.length) { - return []; - } - return mediaNode; - }, - - visitDirective: function(directiveNode, visitArgs) { - if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) { - return []; - } - if (directiveNode.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (this.charset) { - if (directiveNode.debugInfo) { - var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n"); - comment.debugInfo = directiveNode.debugInfo; - return this._visitor.visit(comment); - } - return []; - } - this.charset = true; - } - return directiveNode; - }, - - checkPropertiesInRoot: function(rules) { - var ruleNode; - for(var i = 0; i < rules.length; i++) { - ruleNode = rules[i]; - if (ruleNode instanceof tree.Rule && !ruleNode.variable) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null}; - } - } - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var rule, rulesets = []; - if (rulesetNode.firstRoot) { - this.checkPropertiesInRoot(rulesetNode.rules); - } - if (! rulesetNode.root) { - - rulesetNode.paths = rulesetNode.paths - .filter(function(p) { - var i; - if (p[0].elements[0].combinator.value === ' ') { - p[0].elements[0].combinator = new(tree.Combinator)(''); - } - for(i = 0; i < p.length; i++) { - if (p[i].getIsReferenced() && p[i].getIsOutput()) { - return true; - } - } - return false; - }); - - // Compile rules and rulesets - for (var i = 0; i < rulesetNode.rules.length; i++) { - rule = rulesetNode.rules[i]; - - if (rule.rules) { - // visit because we are moving them out from being a child - rulesets.push(this._visitor.visit(rule)); - rulesetNode.rules.splice(i, 1); - i--; - continue; - } - } - // accept the visitor to remove rules and refactor itself - // then we can decide now whether we want it or not - if (rulesetNode.rules.length > 0) { - rulesetNode.accept(this._visitor); - } - visitArgs.visitDeeper = false; - - this._mergeRules(rulesetNode.rules); - this._removeDuplicateRules(rulesetNode.rules); - - // now decide whether we keep the ruleset - if (rulesetNode.rules.length > 0 && rulesetNode.paths.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } else { - rulesetNode.accept(this._visitor); - visitArgs.visitDeeper = false; - if (rulesetNode.firstRoot || rulesetNode.rules.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } - if (rulesets.length === 1) { - return rulesets[0]; - } - return rulesets; - }, - - _removeDuplicateRules: function(rules) { - // remove duplicates - var ruleCache = {}, - ruleList, rule, i; - for(i = rules.length - 1; i >= 0 ; i--) { - rule = rules[i]; - if (rule instanceof tree.Rule) { - if (!ruleCache[rule.name]) { - ruleCache[rule.name] = rule; - } else { - ruleList = ruleCache[rule.name]; - if (ruleList instanceof tree.Rule) { - ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)]; - } - var ruleCSS = rule.toCSS(this._env); - if (ruleList.indexOf(ruleCSS) !== -1) { - rules.splice(i, 1); - } else { - ruleList.push(ruleCSS); - } - } - } - } - }, - - _mergeRules: function (rules) { - var groups = {}, - parts, - rule, - key; - - for (var i = 0; i < rules.length; i++) { - rule = rules[i]; - - if ((rule instanceof tree.Rule) && rule.merge) { - key = [rule.name, - rule.important ? "!" : ""].join(","); - - if (!groups[key]) { - parts = groups[key] = []; - } else { - rules.splice(i--, 1); - } - - parts.push(rule); - } - } - - Object.keys(groups).map(function (k) { - parts = groups[k]; - - if (parts.length > 1) { - rule = parts[0]; - - rule.value = new (tree.Value)(parts.map(function (p) { - return p.value; - })); - } - }); - } - }; - -})(require('./tree')); -(function (tree) { - /*jshint loopfunc:true */ - - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - for(i = 0; i < rulesetNode.rules.length; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rulesetNode.rules[i]); - rulesetNode.extendOnEveryPath = true; - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - for(i = 0; i < rulesetNode.paths.length; i++) { - var selectorPath = rulesetNode.paths[i], - selector = selectorPath[selectorPath.length-1]; - extendList = selector.extendList.slice(0).concat(allSelectorsExtendList).map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if (this.inInheritanceChain(targetExtend, extend)) { continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parents = [targetExtend, extend]; - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - inInheritanceChain: function (possibleParent, possibleChild) { - if (possibleParent === possibleChild) { - return true; - } - if (possibleChild.parents) { - if (this.inInheritanceChain(possibleParent, possibleChild.parents[0])) { - return true; - } - if (this.inInheritanceChain(possibleParent, possibleChild.parents[1])) { - return true; - } - } - return false; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (rulesetNode.extendOnEveryPath || selectorPath[selectorPath.length-1].extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator === '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - elementValue1 = elementValue1.value; - elementValue2 = elementValue2.value; - if (elementValue1 instanceof tree.Selector) { - if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) { - return false; - } - for(var i = 0; i currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - newElements = selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)); - - if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) { - path[path.length - 1].elements = - path[path.length - 1].elements.concat(newElements); - } else { - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - newElements - )); - } - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.sourceMapOutput = function (options) { - this._css = []; - this._rootNode = options.rootNode; - this._writeSourceMap = options.writeSourceMap; - this._contentsMap = options.contentsMap; - this._sourceMapFilename = options.sourceMapFilename; - this._outputFilename = options.outputFilename; - this._sourceMapURL = options.sourceMapURL; - this._sourceMapBasepath = options.sourceMapBasepath; - this._sourceMapRootpath = options.sourceMapRootpath; - this._outputSourceFiles = options.outputSourceFiles; - this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator; - - if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') { - this._sourceMapRootpath += '/'; - } - - this._lineNumber = 0; - this._column = 0; - }; - - tree.sourceMapOutput.prototype.normalizeFilename = function(filename) { - if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) { - filename = filename.substring(this._sourceMapBasepath.length); - if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') { - filename = filename.substring(1); - } - } - return (this._sourceMapRootpath || "") + filename.replace(/\\/g, '/'); - }; - - tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) { - - //ignore adding empty strings - if (!chunk) { - return; - } - - var lines, - sourceLines, - columns, - sourceColumns, - i; - - if (fileInfo) { - var inputSource = this._contentsMap[fileInfo.filename].substring(0, index); - sourceLines = inputSource.split("\n"); - sourceColumns = sourceLines[sourceLines.length-1]; - } - - lines = chunk.split("\n"); - columns = lines[lines.length-1]; - - if (fileInfo) { - if (!mapLines) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column}, - original: { line: sourceLines.length, column: sourceColumns.length}, - source: this.normalizeFilename(fileInfo.filename)}); - } else { - for(i = 0; i < lines.length; i++) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0}, - original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0}, - source: this.normalizeFilename(fileInfo.filename)}); - } - } - } - - if (lines.length === 1) { - this._column += columns.length; - } else { - this._lineNumber += lines.length - 1; - this._column = columns.length; - } - - this._css.push(chunk); - }; - - tree.sourceMapOutput.prototype.isEmpty = function() { - return this._css.length === 0; - }; - - tree.sourceMapOutput.prototype.toCSS = function(env) { - this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null }); - - if (this._outputSourceFiles) { - for(var filename in this._contentsMap) { - this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), this._contentsMap[filename]); - } - } - - this._rootNode.genCSS(env, this); - - if (this._css.length > 0) { - var sourceMapURL, - sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); - - if (this._sourceMapURL) { - sourceMapURL = this._sourceMapURL; - } else if (this._sourceMapFilename) { - sourceMapURL = this.normalizeFilename(this._sourceMapFilename); - } - - if (this._writeSourceMap) { - this._writeSourceMap(sourceMapContent); - } else { - sourceMapURL = "data:application/json," + encodeURIComponent(sourceMapContent); - } - - if (sourceMapURL) { - this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */"); - } - } - - return this._css.join(''); - }; - -})(require('./tree')); - -/*global name:true, less, loadStyleSheet, initRhinoTest, os */ - -if (typeof initRhinoTest === 'function') { // definition of additional test functions (see rhino/test-header.js) - initRhinoTest(); -} - -function formatError(ctx, options) { - options = options || {}; - - var message = ""; - var extract = ctx.extract; - var error = []; -// var stylize = options.color ? require('./lessc_helper').stylize : function (str) { return str; }; - var stylize = function (str) { return str; }; - - // only output a stack if it isn't a less error - if (ctx.stack && !ctx.type) { return stylize(ctx.stack, 'red'); } - - if (!ctx.hasOwnProperty('index') || !extract) { - return ctx.stack || ctx.message; - } - - if (typeof(extract[0]) === 'string') { - error.push(stylize((ctx.line - 1) + ' ' + extract[0], 'grey')); - } - - if (typeof(extract[1]) === 'string') { - var errorTxt = ctx.line + ' '; - if (extract[1]) { - errorTxt += extract[1].slice(0, ctx.column) + - stylize(stylize(stylize(extract[1][ctx.column], 'bold') + - extract[1].slice(ctx.column + 1), 'red'), 'inverse'); - } - error.push(errorTxt); - } - - if (typeof(extract[2]) === 'string') { - error.push(stylize((ctx.line + 1) + ' ' + extract[2], 'grey')); - } - error = error.join('\n') + stylize('', 'reset') + '\n'; - - message += stylize(ctx.type + 'Error: ' + ctx.message, 'red'); - ctx.filename && (message += stylize(' in ', 'red') + ctx.filename + - stylize(' on line ' + ctx.line + ', column ' + (ctx.column + 1) + ':', 'grey')); - - message += '\n' + error; - - if (ctx.callLine) { - message += stylize('from ', 'red') + (ctx.filename || '') + '/n'; - message += stylize(ctx.callLine, 'grey') + ' ' + ctx.callExtract + '/n'; - } - - return message; -} - -function writeError(ctx, options) { - options = options || {}; - if (options.silent) { return; } - print(formatError(ctx, options)); -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - var endOfPath = Math.max(name.lastIndexOf('/'), name.lastIndexOf('\\')), - sheetName = name.slice(0, endOfPath + 1) + sheet.href, - contents = sheet.contents || {}, - input = readFile(sheetName); - - input = input.replace(/^\xEF\xBB\xBF/, ''); - - contents[sheetName] = input; - - var parser = new less.Parser({ - paths: [sheet.href.replace(/[\w\.-]+$/, '')], - contents: contents - }); - parser.parse(input, function (e, root) { - if (e) { - return writeError(e); - } - try { - callback(e, root, input, sheet, { local: false, lastModified: 0, remaining: remaining }, sheetName); - } catch(e) { - writeError(e); - } - }); -} - -less.Parser.fileLoader = function (file, currentFileInfo, callback, env) { - - var href = file; - if (currentFileInfo && currentFileInfo.currentDirectory && !/^\//.test(file)) { - href = less.modules.path.join(currentFileInfo.currentDirectory, file); - } - - var path = less.modules.path.dirname(href); - - var newFileInfo = { - currentDirectory: path + '/', - filename: href - }; - - if (currentFileInfo) { - newFileInfo.entryPath = currentFileInfo.entryPath; - newFileInfo.rootpath = currentFileInfo.rootpath; - newFileInfo.rootFilename = currentFileInfo.rootFilename; - newFileInfo.relativeUrls = currentFileInfo.relativeUrls; - } else { - newFileInfo.entryPath = path; - newFileInfo.rootpath = less.rootpath || path; - newFileInfo.rootFilename = href; - newFileInfo.relativeUrls = env.relativeUrls; - } - - var j = file.lastIndexOf('/'); - if(newFileInfo.relativeUrls && !/^(?:[a-z-]+:|\/)/.test(file) && j != -1) { - var relativeSubDirectory = file.slice(0, j+1); - newFileInfo.rootpath = newFileInfo.rootpath + relativeSubDirectory; // append (sub|sup) directory path of imported file - } - newFileInfo.currentDirectory = path; - newFileInfo.filename = href; - - var data = null; - try { - data = readFile(href); - } catch (e) { - callback({ type: 'File', message: "'" + less.modules.path.basename(href) + "' wasn't found" }); - return; - } - - try { - callback(null, data, href, newFileInfo, { lastModified: 0 }); - } catch (e) { - callback(e, null, href); - } -}; - - -function writeFile(filename, content) { - var fstream = new java.io.FileWriter(filename); - var out = new java.io.BufferedWriter(fstream); - out.write(content); - out.close(); -} - -// Command line integration via Rhino -(function (args) { - - var options = { - depends: false, - compress: false, - cleancss: false, - max_line_len: -1, - optimization: 1, - silent: false, - verbose: false, - lint: false, - paths: [], - color: true, - strictImports: false, - rootpath: '', - relativeUrls: false, - ieCompat: true, - strictMath: false, - strictUnits: false - }; - var continueProcessing = true, - currentErrorcode; - - var checkArgFunc = function(arg, option) { - if (!option) { - print(arg + " option requires a parameter"); - continueProcessing = false; - return false; - } - return true; - }; - - var checkBooleanArg = function(arg) { - var onOff = /^((on|t|true|y|yes)|(off|f|false|n|no))$/i.exec(arg); - if (!onOff) { - print(" unable to parse "+arg+" as a boolean. use one of on/t/true/y/yes/off/f/false/n/no"); - continueProcessing = false; - return false; - } - return Boolean(onOff[2]); - }; - - var warningMessages = ""; - - args = args.filter(function (arg) { - var match; - - if (match = arg.match(/^-I(.+)$/)) { - options.paths.push(match[1]); - return false; - } - - if (match = arg.match(/^--?([a-z][0-9a-z-]*)(?:=(.*))?$/i)) { arg = match[1]; } // was (?:=([^\s]*)), check! - else { return arg; } - - switch (arg) { - case 'v': - case 'version': - console.log("lessc " + less.version.join('.') + " (LESS Compiler) [JavaScript]"); - continueProcessing = false; - break; - case 'verbose': - options.verbose = true; - break; - case 's': - case 'silent': - options.silent = true; - break; - case 'l': - case 'lint': - options.lint = true; - break; - case 'strict-imports': - options.strictImports = true; - break; - case 'h': - case 'help': - //TODO -// require('../lib/less/lessc_helper').printUsage(); - continueProcessing = false; - break; - case 'x': - case 'compress': - options.compress = true; - break; - case 'M': - case 'depends': - options.depends = true; - break; - case 'yui-compress': - warningMessages += "yui-compress option has been removed. assuming clean-css."; - options.cleancss = true; - break; - case 'clean-css': - options.cleancss = true; - break; - case 'max-line-len': - if (checkArgFunc(arg, match[2])) { - options.maxLineLen = parseInt(match[2], 10); - if (options.maxLineLen <= 0) { - options.maxLineLen = -1; - } - } - break; - case 'no-color': - options.color = false; - break; - case 'no-ie-compat': - options.ieCompat = false; - break; - case 'no-js': - options.javascriptEnabled = false; - break; - case 'include-path': - if (checkArgFunc(arg, match[2])) { - options.paths = match[2].split(os.type().match(/Windows/) ? ';' : ':') - .map(function(p) { - if (p) { -// return path.resolve(process.cwd(), p); - return p; - } - }); - } - break; - case 'O0': options.optimization = 0; break; - case 'O1': options.optimization = 1; break; - case 'O2': options.optimization = 2; break; - case 'line-numbers': - if (checkArgFunc(arg, match[2])) { - options.dumpLineNumbers = match[2]; - } - break; - case 'source-map': - if (!match[2]) { - options.sourceMap = true; - } else { - options.sourceMap = match[2]; - } - break; - case 'source-map-rootpath': - if (checkArgFunc(arg, match[2])) { - options.sourceMapRootpath = match[2]; - } - break; - case 'source-map-inline': - options.outputSourceFiles = true; - break; - case 'rp': - case 'rootpath': - if (checkArgFunc(arg, match[2])) { - options.rootpath = match[2].replace(/\\/g, '/'); - } - break; - case "ru": - case "relative-urls": - options.relativeUrls = true; - break; - case "sm": - case "strict-math": - if (checkArgFunc(arg, match[2])) { - options.strictMath = checkBooleanArg(match[2]); - } - break; - case "su": - case "strict-units": - if (checkArgFunc(arg, match[2])) { - options.strictUnits = checkBooleanArg(match[2]); - } - break; - default: - console.log('invalid option ' + arg); - continueProcessing = false; - } - }); - - if (!continueProcessing) { - return; - } - - var name = args[0]; - if (name && name != '-') { -// name = path.resolve(process.cwd(), name); - } - var output = args[1]; - var outputbase = args[1]; - if (output) { - options.sourceMapOutputFilename = output; -// output = path.resolve(process.cwd(), output); - if (warningMessages) { - console.log(warningMessages); - } - } - -// options.sourceMapBasepath = process.cwd(); - options.sourceMapBasepath = ''; - - if (options.sourceMap === true) { - if (!output) { - console.log("the sourcemap option only has an optional filename if the css filename is given"); - return; - } - options.sourceMapFullFilename = options.sourceMapOutputFilename + ".map"; - options.sourceMap = less.modules.path.basename(options.sourceMapFullFilename); - } - - if (!name) { - console.log("lessc: no inout files"); - console.log(""); - // TODO -// require('../lib/less/lessc_helper').printUsage(); - currentErrorcode = 1; - return; - } - -// var ensureDirectory = function (filepath) { -// var dir = path.dirname(filepath), -// cmd, -// existsSync = fs.existsSync || path.existsSync; -// if (!existsSync(dir)) { -// if (mkdirp === undefined) { -// try {mkdirp = require('mkdirp');} -// catch(e) { mkdirp = null; } -// } -// cmd = mkdirp && mkdirp.sync || fs.mkdirSync; -// cmd(dir); -// } -// }; - - if (options.depends) { - if (!outputbase) { - console.log("option --depends requires an output path to be specified"); - return; - } - console.log(outputbase + ": "); - } - - if (!name) { - console.log('No files present in the fileset'); - quit(1); - } - - var input = readFile(name, 'utf-8'); - - if (!input) { - console.log('lesscss: couldn\'t open file ' + name); - quit(1); - } - - options.filename = name; - var result; - try { - var parser = new less.Parser(options); - parser.parse(input, function (e, root) { - if (e) { - writeError(e, options); - quit(1); - } else { - result = root.toCSS(options); - if (output) { - writeFile(output, result); - console.log("Written to " + output); - } else { - print(result); - } - quit(0); - } - }); - } - catch(e) { - writeError(e, options); - quit(1); - } - console.log("done"); -}(arguments)); diff --git a/awx/ui/static/lib/less.js/dist/less-rhino-1.6.2.js b/awx/ui/static/lib/less.js/dist/less-rhino-1.6.2.js deleted file mode 100644 index e9e7839728..0000000000 --- a/awx/ui/static/lib/less.js/dist/less-rhino-1.6.2.js +++ /dev/null @@ -1,9017 +0,0 @@ -/* LESS.js v1.6.2 RHINO | Copyright (c) 2009-2014, Alexis Sellier */ - -// -// Stub out `require` in rhino -// -function require(arg) { - var split = arg.split('/'); - var resultModule = split.length == 1 ? less.modules[split[0]] : less[split[1]]; - if (!resultModule) { - throw { message: "Cannot find module '" + arg + "'"}; - } - return resultModule; -} - - -if (typeof(window) === 'undefined') { less = {} } -else { less = window.less = {} } -tree = less.tree = {}; -less.mode = 'rhino'; - -(function() { - - console = function() { - var stdout = java.lang.System.out; - var stderr = java.lang.System.err; - - function doLog(out, type) { - return function() { - var args = java.lang.reflect.Array.newInstance(java.lang.Object, arguments.length - 1); - var format = arguments[0]; - var conversionIndex = 0; - // need to look for %d (integer) conversions because in Javascript all numbers are doubles - for (var i = 1; i < arguments.length; i++) { - var arg = arguments[i]; - if (conversionIndex != -1) { - conversionIndex = format.indexOf('%', conversionIndex); - } - if (conversionIndex >= 0 && conversionIndex < format.length) { - var conversion = format.charAt(conversionIndex + 1); - if (conversion === 'd' && typeof arg === 'number') { - arg = new java.lang.Integer(new java.lang.Double(arg).intValue()); - } - conversionIndex++; - } - args[i-1] = arg; - } - try { - out.println(type + java.lang.String.format(format, args)); - } catch(ex) { - stderr.println(ex); - } - } - } - return { - log: doLog(stdout, ''), - info: doLog(stdout, 'INFO: '), - error: doLog(stderr, 'ERROR: '), - warn: doLog(stderr, 'WARN: ') - }; - }(); - - less.modules = {}; - - less.modules.path = { - join: function() { - var parts = []; - for (i in arguments) { - parts = parts.concat(arguments[i].split(/\/|\\/)); - } - var result = []; - for (i in parts) { - var part = parts[i]; - if (part === '..' && result.length > 0) { - result.pop(); - } else if (part === '' && result.length > 0) { - // skip - } else if (part !== '.') { - if (part.slice(-1)==='\\' || part.slice(-1)==='/') { - part = part.slice(0, -1); - } - result.push(part); - } - } - return result.join('/'); - }, - dirname: function(p) { - var path = p.split('/'); - path.pop(); - return path.join('/'); - }, - basename: function(p, ext) { - var base = p.split('/').pop(); - if (ext) { - var index = base.lastIndexOf(ext); - if (base.length === index + ext.length) { - base = base.substr(0, index); - } - } - return base; - }, - extname: function(p) { - var index = p.lastIndexOf('.'); - return index > 0 ? p.substring(index) : ''; - } - }; - - less.modules.fs = { - readFileSync: function(name) { - // read a file into a byte array - var file = new java.io.File(name); - var stream = new java.io.FileInputStream(file); - var buffer = []; - var c; - while ((c = stream.read()) != -1) { - buffer.push(c); - } - stream.close(); - return { - length: buffer.length, - toString: function(enc) { - if (enc === 'base64') { - return encodeBase64Bytes(buffer); - } else if (enc) { - return java.lang.String["(byte[],java.lang.String)"](buffer, enc); - } else { - return java.lang.String["(byte[])"](buffer); - } - } - }; - } - }; - - less.encoder = { - encodeBase64: function(str) { - return encodeBase64String(str); - } - }; - - // --------------------------------------------------------------------------------------------- - // private helper functions - // --------------------------------------------------------------------------------------------- - - function encodeBase64Bytes(bytes) { - // requires at least a JRE Platform 6 (or JAXB 1.0 on the classpath) - return javax.xml.bind.DatatypeConverter.printBase64Binary(bytes) - } - function encodeBase64String(str) { - return encodeBase64Bytes(new java.lang.String(str).getBytes()); - } - -})(); - -var less, tree; - -// Node.js does not have a header file added which defines less -if (less === undefined) { - less = exports; - tree = require('./tree'); - less.mode = 'node'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `currentPos` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // current chunk - currentPos, // index of current chunk, in `input` - parser, - parsers, - rootFilename = env && env.filename; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed around by reference. - if (!(env instanceof tree.parseEnv)) { - env = new tree.parseEnv(env); - } - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - contentsIgnoredChars: env.contentsIgnoredChars, // lines inserted, not in the original less - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, currentFileInfo, importOptions, callback) { - var parserImports = this; - this.queue.push(path); - - var fileParsedFunc = function (e, root, fullPath) { - parserImports.queue.splice(parserImports.queue.indexOf(path), 1); // Remove the path from the queue - - var importedPreviously = fullPath in parserImports.files || fullPath === rootFilename; - - parserImports.files[fullPath] = root; // Store the root - - if (e && !parserImports.error) { parserImports.error = e; } - - callback(e, root, importedPreviously, fullPath); - }; - - if (less.Parser.importer) { - less.Parser.importer(path, currentFileInfo, fileParsedFunc, env); - } else { - less.Parser.fileLoader(path, currentFileInfo, function(e, contents, fullPath, newFileInfo) { - if (e) {fileParsedFunc(e); return;} - - var newEnv = new tree.parseEnv(env); - - newEnv.currentFileInfo = newFileInfo; - newEnv.processImports = false; - newEnv.contents[fullPath] = contents; - - if (currentFileInfo.reference || importOptions.reference) { - newFileInfo.reference = true; - } - - if (importOptions.inline) { - fileParsedFunc(null, contents, fullPath); - } else { - new(less.Parser)(newEnv).parse(contents, function (e, root) { - fileParsedFunc(e, root, fullPath); - }); - } - }, env); - } - } - }; - - function save() { temp = current; memo = currentPos = i; } - function restore() { current = temp; currentPos = i = memo; } - - function sync() { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - } - function isWhitespace(str, pos) { - var code = str.charCodeAt(pos | 0); - return (code <= 32) && (code === 32 || code === 10 || code === 9); - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var tokType = typeof tok, - match, length; - - // Either match a single character in the input, - // or match a regexp in the current chunk (`current`). - // - if (tokType === "string") { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - // regexp - sync (); - if (! (match = tok.exec(current))) { - return null; - } - - length = match[0].length; - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - - // Specialization of $(tok) - function $re(tok) { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - var m = tok.exec(current); - if (!m) { - return null; - } - - skipWhitespace(m[0].length); - if(typeof m === "string") { - return m; - } - - return m.length === 1 ? m[0] : m; - } - - var _$re = $re; - - // Specialization of $(tok) - function $char(tok) { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - curr = i - currentPos, - endIndex = i + current.length - curr, - mem = (i += length), - inp = input, - c; - - for (; i < endIndex; i++) { - c = inp.charCodeAt(i); - if (c > 32) { - break; - } - - if ((c !== 32) && (c !== 10) && (c !== 9) && (c !== 13)) { - break; - } - } - - current = current.slice(length + i - mem + curr); - currentPos = i; - - if (!current.length && (j < chunks.length - 1)) { - current = chunks[++j]; - skipWhitespace(0); // skip space at the beginning of a chunk - return true; // things changed - } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - // some older browsers return typeof 'function' for RegExp - var result = (Object.prototype.toString.call(arg) === '[object Function]') ? arg.call(parsers) : $(arg); - if (result) { - return result; - } - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } - - // Specialization of expect() - function expectChar(arg, msg) { - if (input.charAt(i) === arg) { - skipWhitespace(1); - return arg; - } - error(msg || "expected '" + arg + "' got '" + input.charAt(i) + "'"); - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - return tok.test(current); - } - } - - // Specialization of peek() - function peekChar(tok) { - return input.charAt(i) === tok; - } - - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, inputStream) { - var n = index + 1, - line = null, - column = -1; - - while (--n >= 0 && inputStream.charAt(n) !== '\n') { - column++; - } - - if (typeof index === 'number') { - line = (inputStream.slice(0, index).match(/\n/g) || "").length; - } - - return { - line: line, - column: column - }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - callLine = e.call && getLocation(e.call, input).line, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = callLine + 1; - this.callExtract = lines[callLine]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // @param str A string containing 'less' markup - // @param callback call `callback` when done. - // @param [additionalData] An optional map which can contains vars - a map (key, value) of variables to apply - // - parse: function (str, callback, additionalData) { - var root, line, lines, error = null, globalVars, modifyVars, preText = ""; - - i = j = currentPos = furthest = 0; - - globalVars = (additionalData && additionalData.globalVars) ? less.Parser.serializeVars(additionalData.globalVars) + '\n' : ''; - modifyVars = (additionalData && additionalData.modifyVars) ? '\n' + less.Parser.serializeVars(additionalData.modifyVars) : ''; - - if (globalVars || (additionalData && additionalData.banner)) { - preText = ((additionalData && additionalData.banner) ? additionalData.banner : "") + globalVars; - parser.imports.contentsIgnoredChars[env.currentFileInfo.filename] = preText.length; - } - - str = str.replace(/\r\n/g, '\n'); - // Remove potential UTF Byte Order Mark - input = str = preText + str.replace(/^\uFEFF/, '') + modifyVars; - parser.imports.contents[env.currentFileInfo.filename] = str; - - // Split the input into chunks. - chunks = (function (input) { - var len = input.length, level = 0, parenLevel = 0, - lastOpening, lastOpeningParen, lastMultiComment, lastMultiCommentEndBrace, - chunks = [], emitFrom = 0, - parserCurrentIndex, currentChunkStartIndex, cc, cc2, matched; - - function fail(msg, index) { - error = new(LessError)({ - index: index || parserCurrentIndex, - type: 'Parse', - message: msg, - filename: env.currentFileInfo.filename - }, env); - } - - function emitChunk(force) { - var len = parserCurrentIndex - emitFrom; - if (((len < 512) && !force) || !len) { - return; - } - chunks.push(input.slice(emitFrom, parserCurrentIndex + 1)); - emitFrom = parserCurrentIndex + 1; - } - - for (parserCurrentIndex = 0; parserCurrentIndex < len; parserCurrentIndex++) { - cc = input.charCodeAt(parserCurrentIndex); - if (((cc >= 97) && (cc <= 122)) || (cc < 34)) { - // a-z or whitespace - continue; - } - - switch (cc) { - case 40: // ( - parenLevel++; - lastOpeningParen = parserCurrentIndex; - continue; - case 41: // ) - if (--parenLevel < 0) { - return fail("missing opening `(`"); - } - continue; - case 59: // ; - if (!parenLevel) { emitChunk(); } - continue; - case 123: // { - level++; - lastOpening = parserCurrentIndex; - continue; - case 125: // } - if (--level < 0) { - return fail("missing opening `{`"); - } - if (!level) { emitChunk(); } - continue; - case 92: // \ - if (parserCurrentIndex < len - 1) { parserCurrentIndex++; continue; } - return fail("unescaped `\\`"); - case 34: - case 39: - case 96: // ", ' and ` - matched = 0; - currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 1; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 > 96) { continue; } - if (cc2 == cc) { matched = 1; break; } - if (cc2 == 92) { // \ - if (parserCurrentIndex == len - 1) { - return fail("unescaped `\\`"); - } - parserCurrentIndex++; - } - } - if (matched) { continue; } - return fail("unmatched `" + String.fromCharCode(cc) + "`", currentChunkStartIndex); - case 47: // /, check for comment - if (parenLevel || (parserCurrentIndex == len - 1)) { continue; } - cc2 = input.charCodeAt(parserCurrentIndex + 1); - if (cc2 == 47) { - // //, find lnfeed - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if ((cc2 <= 13) && ((cc2 == 10) || (cc2 == 13))) { break; } - } - } else if (cc2 == 42) { - // /*, find */ - lastMultiComment = currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len - 1; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 == 125) { lastMultiCommentEndBrace = parserCurrentIndex; } - if (cc2 != 42) { continue; } - if (input.charCodeAt(parserCurrentIndex + 1) == 47) { break; } - } - if (parserCurrentIndex == len - 1) { - return fail("missing closing `*/`", currentChunkStartIndex); - } - parserCurrentIndex++; - } - continue; - case 42: // *, check for unmatched */ - if ((parserCurrentIndex < len - 1) && (input.charCodeAt(parserCurrentIndex + 1) == 47)) { - return fail("unmatched `/*`"); - } - continue; - } - } - - if (level !== 0) { - if ((lastMultiComment > lastOpening) && (lastMultiCommentEndBrace > lastMultiComment)) { - return fail("missing closing `}` or `*/`", lastOpening); - } else { - return fail("missing closing `}`", lastOpening); - } - } else if (parenLevel !== 0) { - return fail("missing closing `)`", lastOpeningParen); - } - - emitChunk(true); - return chunks; - })(str); - - if (error) { - return callback(new(LessError)(error, env)); - } - - current = chunks[0]; - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)(null, this.parsers.primary()); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - return function (options, variables) { - options = options || {}; - var evaldRoot, - css, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, null, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var preEvalVisitors = [], - visitors = [ - new(tree.joinSelectorVisitor)(), - new(tree.processExtendsVisitor)(), - new(tree.toCSSVisitor)({compress: Boolean(options.compress)}) - ], i, root = this; - - if (options.plugins) { - for(i =0; i < options.plugins.length; i++) { - if (options.plugins[i].isPreEvalVisitor) { - preEvalVisitors.push(options.plugins[i]); - } else { - if (options.plugins[i].isPreVisitor) { - visitors.splice(0, 0, options.plugins[i]); - } else { - visitors.push(options.plugins[i]); - } - } - } - } - - for(i = 0; i < preEvalVisitors.length; i++) { - preEvalVisitors[i].run(root); - } - - evaldRoot = evaluate.call(root, evalEnv); - - for(i = 0; i < visitors.length; i++) { - visitors[i].run(evaldRoot); - } - - if (options.sourceMap) { - evaldRoot = new tree.sourceMapOutput( - { - contentsIgnoredCharsMap: parser.imports.contentsIgnoredChars, - writeSourceMap: options.writeSourceMap, - rootNode: evaldRoot, - contentsMap: parser.imports.contents, - sourceMapFilename: options.sourceMapFilename, - sourceMapURL: options.sourceMapURL, - outputFilename: options.sourceMapOutputFilename, - sourceMapBasepath: options.sourceMapBasepath, - sourceMapRootpath: options.sourceMapRootpath, - outputSourceFiles: options.outputSourceFiles, - sourceMapGenerator: options.sourceMapGenerator - }); - } - - css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits), - numPrecision: 8}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.cleancss && less.mode === 'node') { - var CleanCSS = require('clean-css'), - cleancssOptions = options.cleancssOptions || {}; - - if (cleancssOptions.keepSpecialComments === undefined) { - cleancssOptions.keepSpecialComments = "*"; - } - cleancssOptions.processImport = false; - cleancssOptions.noRebase = true; - if (cleancssOptions.noAdvanced === undefined) { - cleancssOptions.noAdvanced = true; - } - - return new CleanCSS(cleancssOptions).minify(css); - } else if (options.compress) { - return css.replace(/(^(\s)+)|((\s)+$)/g, ""); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - var loc = getLocation(i, input); - lines = input.split('\n'); - line = loc.line + 1; - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: loc.column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - return callback(e); - } - else { - return callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - return finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: parsers = { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var mixin = this.mixin, $re = _$re, root = [], node; - - while (current) - { - node = this.extendRule() || mixin.definition() || this.rule() || this.ruleset() || - mixin.call() || this.comment() || this.directive(); - if (node) { - root.push(node); - } else { - if (!($re(/^[\s\n]+/) || $re(/^;+/))) { - break; - } - } - } - - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') { return; } - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($re(/^\/\/.*/), true, i, env.currentFileInfo); - } - comment = $re(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/); - if (comment) { - return new(tree.Comment)(comment, false, i, env.currentFileInfo); - } - }, - - comments: function () { - var comment, comments = []; - - while(true) { - comment = this.comment(); - if (!comment) { - break; - } - comments.push(comment); - } - - return comments; - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; } - - if (e) { $char('~'); } - - str = $re(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/); - if (str) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - k = $re(/^[_A-Za-z-][_A-Za-z0-9-]*/); - if (k) { - var color = tree.Color.fromKeyword(k); - if (color) { - return color; - } - return new(tree.Keyword)(k); - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(current); - if (!name) { return; } - - name = name[1]; - nameLC = name.toLowerCase(); - if (nameLC === 'url') { - return null; - } - - i += name.length; - - if (nameLC === 'alpha') { - alpha_ret = parsers.alpha(); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $char('('); // Parse the '(' and consume whitespace. - - args = this.arguments(); - - if (! $char(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (true) { - arg = this.assignment() || parsers.expression(); - if (!arg) { - break; - } - args.push(arg); - if (! $char(',')) { - break; - } - } - return args; - }, - literal: function () { - return this.dimension() || - this.color() || - this.quoted() || - this.unicodeDescriptor(); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - key = $re(/^\w+(?=\s?=)/i); - if (!key) { - return; - } - if (!$char('=')) { - return; - } - value = parsers.entity(); - if (value) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$re(/^url\(/)) { - return; - } - - value = this.quoted() || this.variable() || - $re(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expectChar(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $re(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var curly, index = i; - - if (input.charAt(i) === '@' && (curly = $re(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $re(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) { - return; - } - - value = $re(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/); - if (value) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - ud = $re(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/); - if (ud) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '`') { return; } - if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) { - error("You are using JavaScript, which has been disabled."); - } - - if (e) { $char('~'); } - - str = $re(/^`([^`]*)`/); - if (str) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*:/))) { return name[1]; } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList, extend; - - if (!(isRule ? $re(/^&:extend\(/) : $re(/^:extend\(/))) { return; } - - do { - option = null; - elements = null; - while (! (option = $re(/^(all)(?=\s*(\)|,))/))) { - e = this.element(); - if (!e) { break; } - if (elements) { elements.push(e); } else { elements = [ e ]; } - } - - option = option && option[1]; - - extend = new(tree.Extend)(new(tree.Selector)(elements), option, index); - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - - } while($char(",")); - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var s = input.charAt(i), important = false, index = i, elemIndex, - elements, elem, e, c, args; - - if (s !== '.' && s !== '#') { return; } - - save(); // stop us absorbing part of an invalid selector - - while (true) { - elemIndex = i; - e = $re(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/); - if (!e) { - break; - } - elem = new(tree.Element)(c, e, elemIndex, env.currentFileInfo); - if (elements) { elements.push(elem); } else { elements = [ elem ]; } - c = $char('>'); - } - - if (elements) { - if ($char('(')) { - args = this.args(true).args; - expectChar(')'); - } - - if (parsers.important()) { - important = true; - } - - if (parsers.end()) { - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - } - - restore(); - }, - args: function (isCall) { - var parsers = parser.parsers, entities = parsers.entities, - returner = { args:null, variadic: false }, - expressions = [], argsSemiColon = [], argsComma = [], - isSemiColonSeperated, expressionContainsNamed, name, nameLoop, value, arg; - - while (true) { - if (isCall) { - arg = parsers.expression(); - } else { - parsers.comments(); - if (input.charAt(i) === '.' && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = entities.variable() || entities.literal() || entities.keyword(); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value.length == 1) { - val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($char(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(parsers.expression); - nameLoop = (name = val.name); - } else if (!isCall && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($char(',')) { - continue; - } - - if ($char(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) { - return; - } - - save(); - - match = $re(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/); - if (match) { - name = match[1]; - - var argInfo = this.args(false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$char(')')) { - furthest = i; - restore(); - } - - parsers.comments(); - - if ($re(/^when/)) { // Guard - cond = expect(parsers.conditions, 'expected condition'); - } - - ruleset = parsers.block(); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - var entities = this.entities; - - return entities.literal() || entities.variable() || entities.url() || - entities.call() || entities.keyword() || entities.javascript() || - this.comment(); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $char(';') || peekChar('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $re(/^\(opacity=/i)) { return; } - value = $re(/^\d+/) || this.entities.variable(); - if (value) { - expectChar(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, c, v, index = i; - - c = this.combinator(); - - e = $re(/^(?:\d+\.\d+|\d+)%/) || $re(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $char('*') || $char('&') || this.attribute() || $re(/^\([^()@]+\)/) || $re(/^[\.#](?=@)/) || - this.entities.variableCurly(); - - if (! e) { - if ($char('(')) { - if ((v = this.selector()) && $char(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, index, env.currentFileInfo); } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|' || c === '^') { - i++; - if (input.charAt(i) === '^') { - c = '^^'; - i++; - } - while (isWhitespace(input, i)) { i++; } - return new(tree.Combinator)(c); - } else if (isWhitespace(input, i - 1)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - // - // A CSS selector (see selector below) - // with less extensions e.g. the ability to extend and guard - // - lessSelector: function () { - return this.selector(true); - }, - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function (isLess) { - var index = i, $re = _$re, elements, extendList, c, e, extend, when, condition; - - while ((isLess && (extend = this.extend())) || (isLess && (when = $re(/^when/))) || (e = this.element())) { - if (when) { - condition = expect(this.conditions, 'expected condition'); - } else if (condition) { - error("CSS guard can only be used at the end of selector"); - } else if (extend) { - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - } else { - if (extendList) { error("Extend can only be used at the end of selector"); } - c = input.charAt(i); - if (elements) { elements.push(e); } else { elements = [ e ]; } - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { - break; - } - } - - if (elements) { return new(tree.Selector)(elements, extendList, condition, index, env.currentFileInfo); } - if (extendList) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - if (! $char('[')) { return; } - - var entities = this.entities, - key, val, op; - - if (!(key = entities.variableCurly())) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - op = $re(/^[|~*$^]?=/); - if (op) { - val = entities.quoted() || $re(/^[0-9]+%/) || $re(/^[\w-]+/) || entities.variableCurly(); - } - - expectChar(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($char('{') && (content = this.primary()) && $char('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors, s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - while (true) { - s = this.lessSelector(); - if (!s) { - break; - } - if (selectors) { selectors.push(s); } else { selectors = [ s ]; } - this.comments(); - if (s.condition && selectors.length > 1) { - error("Guards are only currently allowed on a single selector."); - } - if (! $char(',')) { break; } - if (s.condition) { - error("Guards are only currently allowed on a single selector."); - } - this.comments(); - } - - if (selectors && (rules = this.block())) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) { - ruleset.debugInfo = debugInfo; - } - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, c = input.charAt(i), important, merge = false; - save(); - - if (c === '.' || c === '#' || c === '&') { return; } - - name = this.variable() || this.ruleProperty(); - if (name) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || (name.charAt && (name.charAt(0) === '@'))) ? - (this.value() || this.anonymousValue()) : - (this.anonymousValue() || this.value()); - - important = this.important(); - - // a name returned by this.ruleProperty() is always an array of the form: - // [string-1, ..., string-n, ""] or [string-1, ..., string-n, "+"] - // where each item is a tree.Keyword or tree.Variable - merge = name.pop && (name.pop().value === "+"); - - if (value && this.end()) { - return new (tree.Rule)(name, value, important, merge, memo, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } - }, - anonymousValue: function () { - var match; - match = /^([^@+\/'"*`(;{}-]*);/.exec(current); - if (match) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $re(/^@import?\s+/); - - var options = (dir ? this.importOptions() : null) || {}; - - if (dir && (path = this.entities.quoted() || this.entities.url())) { - features = this.mediaFeatures(); - if ($char(';')) { - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $char('(')) { return null; } - do { - o = this.importOption(); - if (o) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $char(',')) { break; } - } - } while (o); - expectChar(')'); - return options; - }, - - importOption: function() { - var opt = $re(/^(less|css|multiple|once|inline|reference)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var entities = this.entities, nodes = [], e, p; - do { - e = entities.keyword() || entities.variable(); - if (e) { - nodes.push(e); - } else if ($char('(')) { - p = this.property(); - e = this.value(); - if ($char(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null; } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var entities = this.entities, features = [], e; - do { - e = this.mediaFeature(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } else { - e = entities.variable(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - if ($re(/^@media/)) { - features = this.mediaFeatures(); - - rules = this.block(); - if (rules) { - media = new(tree.Media)(rules, features, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - media.debugInfo = debugInfo; - } - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var index = i, name, value, rules, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression, identifier; - - if (input.charAt(i) !== '@') { return; } - - value = this['import']() || this.media(); - if (value) { - return value; - } - - save(); - - name = $re(/^@[a-z-]+/); - - if (!name) { return; } - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@host": - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - identifier = ($re(/^[^{]+/) || '').trim(); - if (identifier) { - name += " " + identifier; - } - } - - if (hasBlock) { - rules = this.block(); - if (rules) { - return new(tree.Directive)(name, rules, index, env.currentFileInfo); - } - } else { - value = hasExpression ? this.expression() : this.entity(); - if (value && $char(';')) { - var directive = new(tree.Directive)(name, value, index, env.currentFileInfo); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = []; - - do { - e = this.expression(); - if (e) { - expressions.push(e); - if (! $char(',')) { break; } - } - } while(e); - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $re(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($char('(')) { - a = this.addition(); - if (a) { - e = new(tree.Expression)([a]); - expectChar(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced; - m = this.operand(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - if (peek(/^\/[*\/]/)) { - break; - } - op = $char('/') || $char('*'); - - if (!op) { break; } - - a = this.operand(); - - if (!a) { break; } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - m = this.multiplication(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - op = $re(/^[-+]\s+/) || (!isSpaced && ($char('+') || $char('-'))); - if (!op) { - break; - } - a = this.multiplication(); - if (!a) { - break; - } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - a = this.condition(); - if (a) { - while (true) { - if (!peek(/^,\s*(not\s*)?\(/) || !$char(',')) { - break; - } - b = this.condition(); - if (!b) { - break; - } - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var entities = this.entities, index = i, negate = false, - a, b, c, op; - - if ($re(/^not/)) { negate = true; } - expectChar('('); - a = this.addition() || entities.keyword() || entities.quoted(); - if (a) { - op = $re(/^(?:>=|<=|=<|[<=>])/); - if (op) { - b = this.addition() || entities.keyword() || entities.quoted(); - if (b) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expectChar(')'); - return $re(/^and/) ? new(tree.Condition)('and', c, this.condition()) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var entities = this.entities, - p = input.charAt(i + 1), negate; - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $char('-'); } - var o = this.sub() || entities.dimension() || - entities.color() || entities.variable() || - entities.call(); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var entities = [], e, delim; - - do { - e = this.addition() || this.entity(); - if (e) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/)) { - delim = $char('/'); - if (delim) { - entities.push(new(tree.Anonymous)(delim)); - } - } - } - } while (e); - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name = $re(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/); - if (name) { - return name[1]; - } - }, - ruleProperty: function () { - var c = current, name = [], index = [], length = 0, s, k; - - function match(re) { - var a = re.exec(c); - if (a) { - index.push(i + length); - length += a[0].length; - c = c.slice(a[1].length); - return name.push(a[1]); - } - } - - match(/^(\*?)/); - while (match(/^((?:[\w-]+)|(?:@\{[\w-]+\}))/)); // ! - if ((name.length > 1) && match(/^\s*(\+?)\s*:/)) { - // at last, we have the complete match now. move forward, - // convert name particles to tree objects and return: - skipWhitespace(length); - if (name[0] === '') { - name.shift(); - index.shift(); - } - for (k = 0; k < name.length; k++) { - s = name[k]; - name[k] = (s.charAt(0) !== '@') - ? new(tree.Keyword)(s) - : new(tree.Variable)('@' + s.slice(2, -1), - index[k], env.currentFileInfo); - } - return name; - } - } - } - }; - return parser; -}; -less.Parser.serializeVars = function(vars) { - var s = ''; - - for (var name in vars) { - if (Object.hasOwnProperty.call(vars, name)) { - var value = vars[name]; - s += ((name[0] === '@') ? '' : '@') + name +': '+ value + - ((('' + value).slice(-1) === ';') ? '' : ';'); - } - } - - return s; -}; - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 255); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; } - else if (h * 2 < 1) { return m2; } - else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; } - else { return m1; } - } - - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - // filter: saturate(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if (color.luma() < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - /*jshint loopfunc:true */ - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - if(!(val instanceof tree.Dimension)) { - throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") }; - } - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return _math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _minmax: function (isMin, args) { - args = Array.prototype.slice.call(args); - switch(args.length) { - case 0: throw { type: "Argument", message: "one or more arguments required" }; - case 1: return args[0]; - } - var i, j, current, currentUnified, referenceUnified, unit, - order = [], // elems only contains original argument values. - values = {}; // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - for (i = 0; i < args.length; i++) { - current = args[i]; - if (!(current instanceof tree.Dimension)) { - order.push(current); - continue; - } - currentUnified = current.unify(); - unit = currentUnified.unit.toString(); - j = values[unit]; - if (j === undefined) { - values[unit] = order.length; - order.push(current); - continue; - } - referenceUnified = order[j].unify(); - if ( isMin && currentUnified.value < referenceUnified.value || - !isMin && currentUnified.value > referenceUnified.value) { - order[j] = current; - } - } - if (order.length == 1) { - return order[0]; - } - args = order.map(function (a) { return a.toCSS(this.env); }) - .join(this.env.compress ? "," : ", "); - return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")"); - }, - min: function () { - return this._minmax(true, arguments); - }, - max: function () { - return this._minmax(false, arguments); - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - var colorCandidate = n.value, - returnColor; - returnColor = tree.Color.fromKeyword(colorCandidate); - if (returnColor) { - return returnColor; - } - if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) { - return new(tree.Color)(colorCandidate.slice(1)); - } - throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" }; - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - return Array.isArray(values.value) - ? values.value[index] : Array(values)[index]; - }, - length: function(values) { - var n = Array.isArray(values.value) ? values.value.length : 1; - return new tree.Dimension(n); - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require('fs'), - path = require('path'), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) { mimetype += ';base64'; } - } - else { - useBase64 = /;base64$/.test(mimetype); - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "\"data:" + mimetype + ',' + buf + "\""; - return new(tree.URL)(new(tree.Anonymous)(uri)); - }, - - "svg-gradient": function(direction) { - - function throwArgumentDescriptor() { - throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" }; - } - - if (arguments.length < 3) { - throwArgumentDescriptor(); - } - var stops = Array.prototype.slice.call(arguments, 1), - gradientDirectionSvg, - gradientType = "linear", - rectangleDimension = 'x="0" y="0" width="1" height="1"', - useBase64 = true, - renderEnv = {compress: false}, - returner, - directionValue = direction.toCSS(renderEnv), - i, color, position, positionValue, alpha; - - switch (directionValue) { - case "to bottom": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - gradientType = "radial"; - gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" }; - } - returner = '' + - '' + - '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>'; - - for (i = 0; i < stops.length; i+= 1) { - if (stops[i].value) { - color = stops[i].value[0]; - position = stops[i].value[1]; - } else { - color = stops[i]; - position = undefined; - } - - if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) { - throwArgumentDescriptor(); - } - positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%"; - alpha = color.alpha; - returner += ''; - } - returner += '' + - ''; - - if (useBase64) { - try { - returner = require('./encoder').encodeBase64(returner); // TODO browser implementation - } catch(e) { - useBase64 = false; - } - } - - returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'"; - return new(tree.URL)(new(tree.Anonymous)(returner)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -// Math - -var mathFunctions = { - // name, unit - ceil: null, - floor: null, - sqrt: null, - abs: null, - tan: "", - sin: "", - cos: "", - atan: "rad", - asin: "rad", - acos: "rad" -}; - -function _math(fn, unit, n) { - if (!(n instanceof tree.Dimension)) { - throw { type: "Argument", message: "argument must be a number" }; - } - if (unit == null) { - unit = n.unit; - } else { - n = n.unify(); - } - return new(tree.Dimension)(fn(parseFloat(n.value)), unit); -} - -// ~ End of Math - -// Color Blending -// ref: http://www.w3.org/TR/compositing-1 - -function colorBlend(mode, color1, color2) { - var ab = color1.alpha, cb, // backdrop - as = color2.alpha, cs, // source - ar, cr, r = []; // result - - ar = as + ab * (1 - as); - for (var i = 0; i < 3; i++) { - cb = color1.rgb[i] / 255; - cs = color2.rgb[i] / 255; - cr = mode(cb, cs); - if (ar) { - cr = (as * cs + ab * (cb - - as * (cb + cs - cr))) / ar; - } - r[i] = cr * 255; - } - - return new(tree.Color)(r, ar); -} - -var colorBlendMode = { - multiply: function(cb, cs) { - return cb * cs; - }, - screen: function(cb, cs) { - return cb + cs - cb * cs; - }, - overlay: function(cb, cs) { - cb *= 2; - return (cb <= 1) - ? colorBlendMode.multiply(cb, cs) - : colorBlendMode.screen(cb - 1, cs); - }, - softlight: function(cb, cs) { - var d = 1, e = cb; - if (cs > 0.5) { - e = 1; - d = (cb > 0.25) ? Math.sqrt(cb) - : ((16 * cb - 12) * cb + 4) * cb; - } - return cb - (1 - 2 * cs) * e * (d - cb); - }, - hardlight: function(cb, cs) { - return colorBlendMode.overlay(cs, cb); - }, - difference: function(cb, cs) { - return Math.abs(cb - cs); - }, - exclusion: function(cb, cs) { - return cb + cs - 2 * cb * cs; - }, - - // non-w3c functions: - average: function(cb, cs) { - return (cb + cs) / 2; - }, - negation: function(cb, cs) { - return 1 - Math.abs(cb + cs - 1); - } -}; - -// ~ End of Color Blending - -tree.defaultFunc = { - eval: function () { - var v = this.value_, e = this.error_; - if (e) { - throw e; - } - if (v != null) { - return v ? tree.True : tree.False; - } - }, - value: function (v) { - this.value_ = v; - }, - error: function (e) { - this.error_ = e; - }, - reset: function () { - this.value_ = this.error_ = null; - } -}; - -function initFunctions() { - var f, tf = tree.functions; - - // math - for (f in mathFunctions) { - if (mathFunctions.hasOwnProperty(f)) { - tf[f] = _math.bind(null, Math[f], mathFunctions[f]); - } - } - - // color blending - for (f in colorBlendMode) { - if (colorBlendMode.hasOwnProperty(f)) { - tf[f] = colorBlend.bind(null, colorBlendMode[f]); - } - } - - // default - f = tree.defaultFunc; - tf["default"] = f.eval.bind(f); - -} initFunctions(); - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.fround = function(env, value) { - var p; - if (env && (env.numPrecision != null)) { - p = Math.pow(10, env.numPrecision); - return Math.round(value * p) / p; - } else { - return value; - } -}; - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); - -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); - -(function (tree) { - -tree.debugInfo = function(env, ctx, lineSeperator) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:\/\\])/g, function (a) { - if (a == '\\') { - a = '\/'; - } - return '\\' + a; - }) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - r = fun.call(obj, obj[i]); - if (r) { return r; } - } - return null; -}; - -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false); }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -tree.toCSS = function (env) { - var strs = []; - this.genCSS(env, { - add: function(chunk, fileInfo, index) { - strs.push(chunk); - }, - isEmpty: function () { - return strs.length === 0; - } - }); - return strs.join(''); -}; - -tree.outputRuleset = function (env, output, rules) { - var ruleCnt = rules.length, i; - env.tabLevel = (env.tabLevel | 0) + 1; - - // Compressed - if (env.compress) { - output.add('{'); - for (i = 0; i < ruleCnt; i++) { - rules[i].genCSS(env, output); - } - output.add('}'); - env.tabLevel--; - return; - } - - // Non-compressed - var tabSetStr = '\n' + Array(env.tabLevel).join(" "), tabRuleStr = tabSetStr + " "; - if (!ruleCnt) { - output.add(" {" + tabSetStr + '}'); - } else { - output.add(" {" + tabRuleStr); - rules[0].genCSS(env, output); - for (i = 1; i < ruleCnt; i++) { - output.add(tabRuleStr); - rules[i].genCSS(env, output); - } - output.add(tabSetStr + '}'); - } - - env.tabLevel--; -}; - -})(require('./tree')); - -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } - return this; - }, - genCSS: function (env, output) { - output.add("alpha(opacity="); - - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - - output.add(")"); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Anonymous = function (string, index, currentFileInfo, mapLines) { - this.value = string.value || string; - this.index = index; - this.mapLines = mapLines; - this.currentFileInfo = currentFileInfo; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - eval: function () { - return new tree.Anonymous(this.value, this.index, this.currentFileInfo, this.mapLines); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - }, - genCSS: function (env, output) { - output.add(this.value, this.currentFileInfo, this.index, this.mapLines); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - }, - genCSS: function (env, output) { - output.add(this.key + '='); - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - if (this.args) { - this.args = visitor.visitArray(this.args); - } - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - return new tree.Call(this.name, args, this.index, this.currentFileInfo); - }, - - genCSS: function (env, output) { - output.add(this.name + "(", this.currentFileInfo, this.index); - - for(var i = 0; i < this.args.length; i++) { - this.args[i].genCSS(env, output); - if (i + 1 < this.args.length) { - output.add(", "); - } - } - - output.add(")"); - }, - - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; - -var transparentKeyword = "transparent"; - -tree.Color.prototype = { - type: "Color", - eval: function () { return this; }, - luma: function () { return (0.2126 * this.rgb[0] / 255) + (0.7152 * this.rgb[1] / 255) + (0.0722 * this.rgb[2] / 255); }, - - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress, - alpha = tree.fround(env, this.alpha); - - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - if (alpha < 1) { - if (alpha === 0 && this.isTransparentKeyword) { - return transparentKeyword; - } - return "rgba(" + this.rgb.map(function (c) { - return clamp(Math.round(c), 255); - }).concat(clamp(alpha, 1)) - .join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.toRGB(); - - if (compress) { - var splitcolor = color.split(''); - - // Convert color to short format - if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) { - color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5]; - } - } - - return color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var rgb = []; - var alpha = this.alpha * (1 - other.alpha) + other.alpha; - for (var c = 0; c < 3; c++) { - rgb[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(rgb, alpha); - }, - - toRGB: function () { - return toHex(this.rgb); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - return toHex([this.alpha * 255].concat(this.rgb)); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - -tree.Color.fromKeyword = function(keyword) { - keyword = keyword.toLowerCase(); - - if (tree.colors.hasOwnProperty(keyword)) { - // detect named color - return new(tree.Color)(tree.colors[keyword].slice(1)); - } - if (keyword === transparentKeyword) { - var transparent = new(tree.Color)([0, 0, 0], 0); - transparent.isTransparentKeyword = true; - return transparent; - } -}; - -function toHex(v) { - return '#' + v.map(function (c) { - c = clamp(Math.round(c), 255); - return (c < 16 ? '0' : '') + c.toString(16); - }).join(''); -} - -function clamp(v, max) { - return Math.min(Math.max(v, 0), max); -} - -})(require('../tree')); - -(function (tree) { - -tree.Comment = function (value, silent, index, currentFileInfo) { - this.value = value; - this.silent = !!silent; - this.currentFileInfo = currentFileInfo; -}; -tree.Comment.prototype = { - type: "Comment", - genCSS: function (env, output) { - if (this.debugInfo) { - output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index); - } - output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n - }, - toCSS: tree.toCSS, - isSilent: function(env) { - var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced), - isCompressed = env.compress && !this.value.match(/^\/\*!/); - return this.silent || isReference || isCompressed; - }, - eval: function () { return this; }, - markReferenced: function () { - this.isReferenced = true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<' || op === '<='; - case 0: return op === '=' || op === '>=' || op === '=<' || op === '<='; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); - -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - genCSS: function (env, output) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = tree.fround(env, this.value), - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && this.unit.isLength()) { - output.add(strValue); - return; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - output.add(strValue); - this.unit.genCSS(env, output); - }, - toCSS: tree.toCSS, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - /*jshint noempty:false */ - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a = this.unify(), b = other.unify(), - aValue = a.value, bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - if (!b.unit.isEmpty() && a.unit.compare(b.unit) !== 0) { - return -1; - } - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'm', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, targetUnit, derivedConversions = {}, applyUnit; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - applyUnit = function (atomicUnit, denominator) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(applyUnit); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - genCSS: function (env, output) { - if (this.numerator.length >= 1) { - output.add(this.numerator[0]); - } else - if (this.denominator.length >= 1) { - output.add(this.denominator[0]); - } else - if ((!env || !env.strictUnits) && this.backupUnit) { - output.add(this.backupUnit); - } - }, - toCSS: tree.toCSS, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isLength: function () { - return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/)); - }, - - isEmpty: function () { - return this.numerator.length === 0 && this.denominator.length === 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length === 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, result = {}, mapUnit; - - mapUnit = function (atomicUnit) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }; - - for (var groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(mapUnit); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Directive = function (name, value, index, currentFileInfo) { - this.name = name; - - if (Array.isArray(value)) { - this.rules = [new(tree.Ruleset)(null, value)]; - this.rules[0].allowImports = true; - } else { - this.value = value; - } - this.index = index; - this.currentFileInfo = currentFileInfo; - -}; -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - if (this.value) { - this.value = visitor.visit(this.value); - } - }, - genCSS: function (env, output) { - output.add(this.name, this.currentFileInfo, this.index); - if (this.rules) { - tree.outputRuleset(env, output, this.rules); - } else { - output.add(' '); - this.value.genCSS(env, output); - output.add(';'); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var evaldDirective = this; - if (this.rules) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name, null, this.index, this.currentFileInfo); - evaldDirective.rules = [this.rules[0].eval(env)]; - evaldDirective.rules[0].root = true; - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - markReferenced: function () { - var i, rules; - this.isReferenced = true; - if (this.rules) { - rules = this.rules[0].rules; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Element = function (combinator, value, index, currentFileInfo) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - var value = this.value; - this.combinator = visitor.visit(this.combinator); - if (typeof value === "object") { - this.value = visitor.visit(value); - } - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index, - this.currentFileInfo); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env), this.currentFileInfo, this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value === '' && this.combinator.value.charAt(0) === '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - _outputMap: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : ' + ', - '~' : ' ~ ', - '>' : ' > ', - '|' : '|', - '^' : ' ^ ', - '^^' : ' ^^ ' - }, - _outputMapCompressed: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : '+', - '~' : '~', - '>' : '>', - '|' : '|', - '^' : '^', - '^^' : '^^' - }, - genCSS: function (env, output) { - output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - genCSS: function (env, output) { - for(var i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i + 1 < this.value.length) { - output.add(" "); - } - } - }, - toCSS: tree.toCSS, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - this.object_id = tree.Extend.next_id++; - this.parent_ids = [this.object_id]; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; -tree.Extend.next_id = 0; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i, - selectorElements; - - for(i = 0; i < selectors.length; i++) { - selectorElements = selectors[i].elements; - // duplicate the logic in genCSS function inside the selector node. - // future TODO - move both logics into the selector joiner visitor - if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") { - selectorElements[0].combinator.value = ' '; - } - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); - -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined || this.options.inline) { - this.css = !this.options.less || this.options.inline; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - this.path = visitor.visit(this.path); - if (!this.options.inline && this.root) { - this.root = visitor.visit(this.root); - } - }, - genCSS: function (env, output) { - if (this.css) { - output.add("@import ", this.currentFileInfo, this.index); - this.path.genCSS(env, output); - if (this.features) { - output.add(" "); - this.features.genCSS(env, output); - } - output.add(';'); - } - }, - toCSS: tree.toCSS, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - - if (!(path instanceof tree.URL)) { - if (rootpath) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath +pathValue; - } - } - path.value = env.normalizePath(path.value); - } - - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { return []; } - - if (this.options.inline) { - //todo needs to reference css file not import - var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true); - return this.features ? new(tree.Media)([contents], this.features.value) : [contents]; - } else if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" , - index: this.index }; - } - - var variables = env.frames[0].variables(); - for (var k in variables) { - if (variables.hasOwnProperty(k)) { - /*jshint loopfunc:true */ - context[k.slice(1)] = { - value: variables[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message.replace(/["]/g, "'") + "'" , - index: this.index }; - } - if (typeof(result) === 'number') { - return new(tree.Dimension)(result); - } else if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Keyword = function (value) { this.value = value; }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); - -(function (tree) { - -tree.Media = function (value, features, index, currentFileInfo) { - this.index = index; - this.currentFileInfo = currentFileInfo; - - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.rules = [new(tree.Ruleset)(selectors, value)]; - this.rules[0].allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - }, - genCSS: function (env, output) { - output.add('@media ', this.currentFileInfo, this.index); - this.features.genCSS(env, output); - tree.outputRuleset(env, output, this.rules); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)(null, [], this.index, this.currentFileInfo); - if(this.debugInfo) { - this.rules[0].debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.rules[0]); - media.rules = [this.rules[0].eval(env)]; - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env); - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', this.index, this.currentFileInfo), - sels = [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)]; - sels[0].mediaEmpty = true; - return sels; - }, - markReferenced: function () { - var i, rules = this.rules[0].rules; - this.isReferenced = true; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])]; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = (args && args.length) ? args : null; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - if (this.selector) { - this.selector = visitor.visit(this.selector); - } - if (this.arguments) { - this.arguments = visitor.visitArray(this.arguments); - } - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule, - candidates = [], candidate, conditionResult = [], defaultFunc = tree.defaultFunc, - defaultResult, defNone = 0, defTrue = 1, defFalse = 2, count; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - - // To make `default()` function independent of definition order we have two "subpasses" here. - // At first we evaluate each guard *twice* (with `default() == true` and `default() == false`), - // and build candidate list with corresponding flags. Then, when we know all possible matches, - // we make a final decision. - - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - - if (mixin.matchArgs(args, env)) { - candidate = {mixin: mixin, group: defNone}; - - if (mixin.matchCondition) { - for (f = 0; f < 2; f++) { - defaultFunc.value(f); - conditionResult[f] = mixin.matchCondition(args, env); - } - if (conditionResult[0] || conditionResult[1]) { - if (conditionResult[0] != conditionResult[1]) { - candidate.group = conditionResult[1] ? - defTrue : defFalse; - } - - candidates.push(candidate); - } - } - else { - candidates.push(candidate); - } - - match = true; - } - } - - defaultFunc.reset(); - - count = [0, 0, 0]; - for (m = 0; m < candidates.length; m++) { - count[candidates[m].group]++; - } - - if (count[defNone] > 0) { - defaultResult = defFalse; - } else { - defaultResult = defTrue; - if ((count[defTrue] + count[defFalse]) > 1) { - throw { type: 'Runtime', - message: 'Ambiguous use of `default()` found when matching for `' - + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - for (m = 0; m < candidates.length; m++) { - candidate = candidates[m].group; - if ((candidate === defNone) || (candidate === defaultResult)) { - try { - mixin = candidates[m].mixin; - if (!(mixin instanceof tree.mixin.Definition)) { - mixin = new tree.mixin.Definition("", [], mixin.rules, null, false); - mixin.originalRuleset = mixins[m].originalRuleset || mixins[m]; - } - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - } - - if (match) { - if (!this.currentFileInfo || !this.currentFileInfo.reference) { - for (i = 0; i < rules.length; i++) { - rule = rules[i]; - if (rule.markReferenced) { - rule.markReferenced(); - } - } - } - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - }, - format: function (args) { - return this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")"; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1; } - else { return count; } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - if (this.params && this.params.length) { - this.params = visitor.visitArray(this.params); - } - this.rules = visitor.visitArray(this.rules); - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - /*jshint boss:true */ - var frame = new(tree.Ruleset)(null, null), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.prependRule(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) { continue; } - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.prependRule(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.prependRule(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - rules, ruleset; - - frame.prependRule(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules); - ruleset.originalRuleset = this; - ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames))); - if (important) { - ruleset = this.parent.makeImportant.apply(ruleset); - } - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] // the parameter variables - .concat(this.frames) // the parent namespace/mixin frames - .concat(env.frames)))) { // the current environment frames - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (! this.variadic) { - if (argsLength < this.required) { return false; } - if (argsLength > this.params.length) { return false; } - } else { - if (argsLength < (this.required - 1)) { return false; } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('-'); - this.value.genCSS(env, output); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env); - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - a = a.toColor(); - } - if (b instanceof tree.Dimension && a instanceof tree.Color) { - b = b.toColor(); - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - genCSS: function (env, output) { - this.operands[0].genCSS(env, output); - if (this.isSpaced) { - output.add(" "); - } - output.add(this.op); - if (this.isSpaced) { - output.add(" "); - } - this.operands[1].genCSS(env, output); - }, - toCSS: tree.toCSS -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('('); - this.value.genCSS(env, output); - output.add(')'); - }, - toCSS: tree.toCSS, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - genCSS: function (env, output) { - if (!this.escaped) { - output.add(this.quote, this.currentFileInfo, this.index); - } - output.add(this.value); - if (!this.escaped) { - output.add(this.quote); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.merge = merge; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - this.variable = name.charAt && (name.charAt(0) === '@'); -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index); - try { - this.value.genCSS(env, output); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index); - }, - toCSS: tree.toCSS, - eval: function (env) { - var strictMathBypass = false, name = this.name; - if (typeof name !== "string") { - // expand 'primitive' name directly to get - // things faster (~10% for benchmark.less): - name = (name.length === 1) - && (name[0] instanceof tree.Keyword) - ? name[0].value : evalName(env, name); - } - if (name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - return new(tree.Rule)(name, - this.value.eval(env), - this.important, - this.merge, - this.index, this.currentFileInfo, this.inline); - } - catch(e) { - e.index = e.index || this.index; - throw e; - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.merge, - this.index, this.currentFileInfo, this.inline); - } -}; - -function evalName(env, name) { - var value = "", i, n = name.length, - output = {add: function (s) {value += s;}}; - for (i = 0; i < n; i++) { - name[i].eval(env).genCSS(env, output); - } - return value; -} - -})(require('../tree')); - -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - if (this.paths) { - visitor.visitArray(this.paths, true); - } else if (this.selectors) { - this.selectors = visitor.visitArray(this.selectors); - } - if (this.rules && this.rules.length) { - this.rules = visitor.visitArray(this.rules); - } - }, - eval: function (env) { - var thisSelectors = this.selectors, selectors, - selCnt, i, defaultFunc = tree.defaultFunc; - if (thisSelectors && (selCnt = thisSelectors.length)) { - selectors = []; - defaultFunc.error({ - type: "Syntax", - message: "it is currently only allowed in parametric mixin guards," - }); - for (i = 0; i < selCnt; i++) { - selectors.push(thisSelectors[i].eval(env)); - } - defaultFunc.reset(); - } - - var rules = this.rules ? this.rules.slice(0) : null, - ruleset = new(tree.Ruleset)(selectors, rules, this.strictImports), - rule, subRule; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - var envFrames = env.frames; - envFrames.unshift(ruleset); - - // currrent selectors - var envSelectors = env.selectors; - if (!envSelectors) { - env.selectors = envSelectors = []; - } - envSelectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - var rsRules = ruleset.rules, rsRuleCnt = rsRules ? rsRules.length : 0; - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Definition) { - rsRules[i].frames = envFrames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Call) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (i = 0; i < rsRules.length; i++) { - rule = rsRules[i]; - if (! (rule instanceof tree.mixin.Definition)) { - rsRules[i] = rule = rule.eval ? rule.eval(env) : rule; - // for rulesets, check if it is a css guard and can be removed - if (rule instanceof tree.Ruleset && rule.selectors && rule.selectors.length === 1) { - // check if it can be folded in (e.g. & where) - if (rule.selectors[0].isJustParentSelector()) { - rsRules.splice(i--, 1); - // cannot call if there is no selector, so we can just continue - if (!rule.selectors[0].evaldCondition) { - continue; - } - for(var j = 0; j < rule.rules.length; j++) { - subRule = rule.rules[j]; - if (!(subRule instanceof tree.Rule) || !subRule.variable) { - rsRules.splice(++i, 0, subRule); - } - } - } - } - } - } - - // Pop the stack - envFrames.shift(); - envSelectors.shift(); - - if (env.mediaBlocks) { - for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var rules = this.rules, i, importRules; - if (!rules) { return; } - - for (i = 0; i < rules.length; i++) { - if (rules[i] instanceof tree.Import) { - importRules = rules[i].eval(env); - if (importRules && importRules.length) { - rules.splice.apply(rules, [i, 1].concat(importRules)); - i+= importRules.length-1; - } else { - rules.splice(i, 1, importRules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - // lets you call a css selector with a guard - matchCondition: function (args, env) { - var lastSelector = this.selectors[this.selectors.length-1]; - if (!lastSelector.evaldCondition) { - return false; - } - if (lastSelector.condition && - !lastSelector.condition.eval( - new(tree.evalEnv)(env, - env.frames))) { - return false; - } - return true; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (!this._variables) { - this._variables = !this.rules ? {} : this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - return this._variables; - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (!this.rules) { return null; } - - var _Ruleset = tree.Ruleset, _MixinDefinition = tree.mixin.Definition, - filtRules = [], rules = this.rules, cnt = rules.length, - i, rule; - - for (i = 0; i < cnt; i++) { - rule = rules[i]; - if ((rule instanceof _Ruleset) || (rule instanceof _MixinDefinition)) { - filtRules.push(rule); - } - } - - return filtRules; - }, - prependRule: function (rule) { - var rules = this.rules; - if (rules) { rules.unshift(rule); } else { this.rules = [ rule ]; } - }, - find: function (selector, self) { - self = self || this; - var rules = [], match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key]; } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - match = selector.match(rule.selectors[j]); - if (match) { - if (selector.elements.length > match) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(match)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - this._lookups[key] = rules; - return rules; - }, - genCSS: function (env, output) { - var i, j, - ruleNodes = [], - rulesetNodes = [], - rulesetNodeCnt, - debugInfo, // Line number debugging - rule, - path; - - env.tabLevel = (env.tabLevel || 0); - - if (!this.root) { - env.tabLevel++; - } - - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "), - sep; - - for (i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - if (rule.rules || (rule instanceof tree.Media) || rule instanceof tree.Directive || (this.root && rule instanceof tree.Comment)) { - rulesetNodes.push(rule); - } else { - ruleNodes.push(rule); - } - } - - // If this is the root node, we don't render - // a selector, or {}. - if (!this.root) { - debugInfo = tree.debugInfo(env, this, tabSetStr); - - if (debugInfo) { - output.add(debugInfo); - output.add(tabSetStr); - } - - var paths = this.paths, pathCnt = paths.length, - pathSubCnt; - - sep = env.compress ? ',' : (',\n' + tabSetStr); - - for (i = 0; i < pathCnt; i++) { - path = paths[i]; - if (!(pathSubCnt = path.length)) { continue; } - if (i > 0) { output.add(sep); } - - env.firstSelector = true; - path[0].genCSS(env, output); - - env.firstSelector = false; - for (j = 1; j < pathSubCnt; j++) { - path[j].genCSS(env, output); - } - } - - output.add((env.compress ? '{' : ' {\n') + tabRuleStr); - } - - // Compile rules and rulesets - for (i = 0; i < ruleNodes.length; i++) { - rule = ruleNodes[i]; - - // @page{ directive ends up with root elements inside it, a mix of rules and rulesets - // In this instance we do not know whether it is the last property - if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) { - env.lastRule = true; - } - - if (rule.genCSS) { - rule.genCSS(env, output); - } else if (rule.value) { - output.add(rule.value.toString()); - } - - if (!env.lastRule) { - output.add(env.compress ? '' : ('\n' + tabRuleStr)); - } else { - env.lastRule = false; - } - } - - if (!this.root) { - output.add((env.compress ? '}' : '\n' + tabSetStr + '}')); - env.tabLevel--; - } - - sep = (env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr); - rulesetNodeCnt = rulesetNodes.length; - if (rulesetNodeCnt) { - if (ruleNodes.length && sep) { output.add(sep); } - rulesetNodes[0].genCSS(env, output); - for (i = 1; i < rulesetNodeCnt; i++) { - if (sep) { output.add(sep); } - rulesetNodes[i].genCSS(env, output); - } - } - - if (!output.isEmpty() && !env.compress && this.firstRoot) { - output.add('\n'); - } - }, - - toCSS: tree.toCSS, - - markReferenced: function () { - for (var s = 0; s < this.selectors.length; s++) { - this.selectors[s].markReferenced(); - } - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for (i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for (j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length === 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', el.index, el.currentFileInfo)); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for (k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = selector.createDerived([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for (i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length === 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for (i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); - -(function (tree) { - -tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) { - this.elements = elements; - this.extendList = extendList; - this.condition = condition; - this.currentFileInfo = currentFileInfo || {}; - this.isReferenced = isReferenced; - if (!condition) { - this.evaldCondition = true; - } -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - if (this.elements) { - this.elements = visitor.visitArray(this.elements); - } - if (this.extendList) { - this.extendList = visitor.visitArray(this.extendList); - } - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - createDerived: function(elements, extendList, evaldCondition) { - evaldCondition = (evaldCondition != null) ? evaldCondition : this.evaldCondition; - var newSelector = new(tree.Selector)(elements, extendList || this.extendList, null, this.index, this.currentFileInfo, this.isReferenced); - newSelector.evaldCondition = evaldCondition; - newSelector.mediaEmpty = this.mediaEmpty; - return newSelector; - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - olen, i; - - other.CacheElements(); - - olen = other._elements.length; - if (olen === 0 || len < olen) { - return 0; - } else { - for (i = 0; i < olen; i++) { - if (elements[i].value !== other._elements[i]) { - return 0; - } - } - } - - return olen; // return number of matched elements - }, - CacheElements: function(){ - var css = '', len, v, i; - - if( !this._elements ){ - - len = this.elements.length; - for(i = 0; i < len; i++){ - - v = this.elements[i]; - css += v.combinator.value; - - if( !v.value.value ){ - css += v.value; - continue; - } - - if( typeof v.value.value !== "string" ){ - css = ''; - break; - } - css += v.value.value; - } - - this._elements = css.match(/[,&#\.\w-]([\w-]|(\\.))*/g); - - if (this._elements) { - if (this._elements[0] === "&") { - this._elements.shift(); - } - - } else { - this._elements = []; - } - - } - }, - isJustParentSelector: function() { - return !this.mediaEmpty && - this.elements.length === 1 && - this.elements[0].value === '&' && - (this.elements[0].combinator.value === ' ' || this.elements[0].combinator.value === ''); - }, - eval: function (env) { - var evaldCondition = this.condition && this.condition.eval(env), - elements = this.elements, extendList = this.extendList; - - elements = elements && elements.map(function (e) { return e.eval(env); }); - extendList = extendList && extendList.map(function(extend) { return extend.eval(env); }); - - return this.createDerived(elements, extendList, evaldCondition); - }, - genCSS: function (env, output) { - var i, element; - if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") { - output.add(' ', this.currentFileInfo, this.index); - } - if (!this._css) { - //TODO caching? speed comparison? - for(i = 0; i < this.elements.length; i++) { - element = this.elements[i]; - element.genCSS(env, output); - } - } - }, - toCSS: tree.toCSS, - markReferenced: function () { - this.isReferenced = true; - }, - getIsReferenced: function() { - return !this.currentFileInfo.reference || this.isReferenced; - }, - getIsOutput: function() { - return this.evaldCondition; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - eval: function () { return this; } -}; - -})(require('../tree')); - -(function (tree) { - -tree.URL = function (val, currentFileInfo, isEvald) { - this.value = val; - this.currentFileInfo = currentFileInfo; - this.isEvald = isEvald; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add("url("); - this.value.genCSS(env, output); - output.add(")"); - }, - toCSS: tree.toCSS, - eval: function (ctx) { - var val = this.value.eval(ctx), - rootpath; - - if (!this.isEvald) { - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - val.value = ctx.normalizePath(val.value); - - // Add url args if enabled - if (ctx.urlArgs) { - if (!val.value.match(/^\s*data:/)) { - var delimiter = val.value.indexOf('?') === -1 ? '?' : '&'; - var urlArgs = delimiter + ctx.urlArgs; - if (val.value.indexOf('#') !== -1) { - val.value = val.value.replace('#', urlArgs + '#'); - } else { - val.value += urlArgs; - } - } - } - } - - return new(tree.URL)(val, this.currentFileInfo, true); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - genCSS: function (env, output) { - var i; - for(i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i+1 < this.value.length) { - output.add((env && env.compress) ? ',' : ', '); - } - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { - this.name = name; - this.index = index; - this.currentFileInfo = currentFileInfo || {}; -}; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, name = this.name; - - if (name.indexOf('@@') === 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - variable = tree.find(env.frames, function (frame) { - var v = frame.variable(name); - if (v) { - return v.value.eval(env); - } - }); - if (variable) { - this.evaluating = false; - return variable; - } else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); - -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // map - filename to contents of all the files - 'contentsIgnoredChars', // map - filename to lines at the begining of each file to ignore - 'relativeUrls', // option - whether to adjust URL's to be relative - 'rootpath', // option - rootpath to append to URL's - 'strictImports', // option - - 'insecure', // option - whether to allow imports from insecure ssl hosts - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true - 'mime', // browser only - mime type for sheet import - 'useFileCache', // browser only - whether to use the per file session cache - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' - absolute path to the entry file - // 'reference' - whether the file should not be output and only output parts that are referenced - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.contentsIgnoredChars) { this.contentsIgnoredChars = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits', // whether units need to evaluate correctly - 'cleancss', // whether to compress with clean-css - 'sourceMap', // whether to output a source map - 'importMultiple', // whether we are currently importing multiple copies - 'urlArgs' // whether to add args into url tokens - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - tree.evalEnv.prototype.normalizePath = function( path ) { - var - segments = path.split("/").reverse(), - segment; - - path = []; - while (segments.length !== 0 ) { - segment = segments.pop(); - switch( segment ) { - case ".": - break; - case "..": - if ((path.length === 0) || (path[path.length - 1] === "..")) { - path.push( segment ); - } else { - path.pop(); - } - break; - default: - path.push( segment ); - break; - } - } - - return path.join("/"); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - }; - -})(require('./tree')); - -(function (tree) { - - var _visitArgs = { visitDeeper: true }, - _hasIndexed = false; - - function _noop(node) { - return node; - } - - function indexNodeTypes(parent, ticker) { - // add .typeIndex to tree node types for lookup table - var key, child; - for (key in parent) { - if (parent.hasOwnProperty(key)) { - child = parent[key]; - switch (typeof child) { - case "function": - // ignore bound functions directly on tree which do not have a prototype - // or aren't nodes - if (child.prototype && child.prototype.type) { - child.prototype.typeIndex = ticker++; - } - break; - case "object": - ticker = indexNodeTypes(child, ticker); - break; - } - } - } - return ticker; - } - - tree.visitor = function(implementation) { - this._implementation = implementation; - this._visitFnCache = []; - - if (!_hasIndexed) { - indexNodeTypes(tree, 1); - _hasIndexed = true; - } - }; - - tree.visitor.prototype = { - visit: function(node) { - if (!node) { - return node; - } - - var nodeTypeIndex = node.typeIndex; - if (!nodeTypeIndex) { - return node; - } - - var visitFnCache = this._visitFnCache, - impl = this._implementation, - aryIndx = nodeTypeIndex << 1, - outAryIndex = aryIndx | 1, - func = visitFnCache[aryIndx], - funcOut = visitFnCache[outAryIndex], - visitArgs = _visitArgs, - fnName; - - visitArgs.visitDeeper = true; - - if (!func) { - fnName = "visit" + node.type; - func = impl[fnName] || _noop; - funcOut = impl[fnName + "Out"] || _noop; - visitFnCache[aryIndx] = func; - visitFnCache[outAryIndex] = funcOut; - } - - if (func !== _noop) { - var newNode = func.call(impl, node, visitArgs); - if (impl.isReplacing) { - node = newNode; - } - } - - if (visitArgs.visitDeeper && node && node.accept) { - node.accept(this); - } - - if (funcOut != _noop) { - funcOut.call(impl, node); - } - - return node; - }, - visitArray: function(nodes, nonReplacing) { - if (!nodes) { - return nodes; - } - - var cnt = nodes.length, i; - - // Non-replacing - if (nonReplacing || !this._implementation.isReplacing) { - for (i = 0; i < cnt; i++) { - this.visit(nodes[i]); - } - return nodes; - } - - // Replacing - var out = []; - for (i = 0; i < cnt; i++) { - var evald = this.visit(nodes[i]); - if (!evald.splice) { - out.push(evald); - } else if (evald.length) { - this.flatten(evald, out); - } - } - return out; - }, - flatten: function(arr, out) { - if (!out) { - out = []; - } - - var cnt, i, item, - nestedCnt, j, nestedItem; - - for (i = 0, cnt = arr.length; i < cnt; i++) { - item = arr[i]; - if (!item.splice) { - out.push(item); - continue; - } - - for (j = 0, nestedCnt = item.length; j < nestedCnt; j++) { - nestedItem = item[j]; - if (!nestedItem.splice) { - out.push(nestedItem); - } else if (nestedItem.length) { - this.flatten(nestedItem, out); - } - } - } - - return out; - } - }; - -})(require('./tree')); -(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode, - inlineCSS = importNode.options.inline; - - if (!importNode.css || inlineCSS) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - - if (importNode.options.multiple) { - env.importMultiple = true; - } - - this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, imported, fullPath) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - - if (imported && !env.importMultiple) { importNode.skip = imported; } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - importNode.importedFilename = fullPath; - if (!inlineCSS && !importNode.skip) { - new(tree.importVisitor)(importVisitor._importer, subFinish, env) - .run(root); - return; - } - } - - subFinish(); - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree')); -(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1], - paths = [], selectors; - - this.contexts.push(paths); - - if (! rulesetNode.root) { - selectors = rulesetNode.selectors; - if (selectors) { - selectors = selectors.filter(function(selector) { return selector.getIsOutput(); }); - rulesetNode.selectors = selectors.length ? selectors : (selectors = null); - if (selectors) { rulesetNode.joinSelectors(paths, context, selectors); } - } - if (!selectors) { rulesetNode.rules = null; } - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree')); -(function (tree) { - tree.toCSSVisitor = function(env) { - this._visitor = new tree.visitor(this); - this._env = env; - }; - - tree.toCSSVisitor.prototype = { - isReplacing: true, - run: function (root) { - return this._visitor.visit(root); - }, - - visitRule: function (ruleNode, visitArgs) { - if (ruleNode.variable) { - return []; - } - return ruleNode; - }, - - visitMixinDefinition: function (mixinNode, visitArgs) { - return []; - }, - - visitExtend: function (extendNode, visitArgs) { - return []; - }, - - visitComment: function (commentNode, visitArgs) { - if (commentNode.isSilent(this._env)) { - return []; - } - return commentNode; - }, - - visitMedia: function(mediaNode, visitArgs) { - mediaNode.accept(this._visitor); - visitArgs.visitDeeper = false; - - if (!mediaNode.rules.length) { - return []; - } - return mediaNode; - }, - - visitDirective: function(directiveNode, visitArgs) { - if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) { - return []; - } - if (directiveNode.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (this.charset) { - if (directiveNode.debugInfo) { - var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n"); - comment.debugInfo = directiveNode.debugInfo; - return this._visitor.visit(comment); - } - return []; - } - this.charset = true; - } - return directiveNode; - }, - - checkPropertiesInRoot: function(rules) { - var ruleNode; - for(var i = 0; i < rules.length; i++) { - ruleNode = rules[i]; - if (ruleNode instanceof tree.Rule && !ruleNode.variable) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null}; - } - } - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var rule, rulesets = []; - if (rulesetNode.firstRoot) { - this.checkPropertiesInRoot(rulesetNode.rules); - } - if (! rulesetNode.root) { - if (rulesetNode.paths) { - rulesetNode.paths = rulesetNode.paths - .filter(function(p) { - var i; - if (p[0].elements[0].combinator.value === ' ') { - p[0].elements[0].combinator = new(tree.Combinator)(''); - } - for(i = 0; i < p.length; i++) { - if (p[i].getIsReferenced() && p[i].getIsOutput()) { - return true; - } - } - return false; - }); - } - - // Compile rules and rulesets - var nodeRules = rulesetNode.rules, nodeRuleCnt = nodeRules ? nodeRules.length : 0; - for (var i = 0; i < nodeRuleCnt; ) { - rule = nodeRules[i]; - if (rule && rule.rules) { - // visit because we are moving them out from being a child - rulesets.push(this._visitor.visit(rule)); - nodeRules.splice(i, 1); - nodeRuleCnt--; - continue; - } - i++; - } - // accept the visitor to remove rules and refactor itself - // then we can decide now whether we want it or not - if (nodeRuleCnt > 0) { - rulesetNode.accept(this._visitor); - } else { - rulesetNode.rules = null; - } - visitArgs.visitDeeper = false; - - nodeRules = rulesetNode.rules; - if (nodeRules) { - this._mergeRules(nodeRules); - nodeRules = rulesetNode.rules; - } - if (nodeRules) { - this._removeDuplicateRules(nodeRules); - nodeRules = rulesetNode.rules; - } - - // now decide whether we keep the ruleset - if (nodeRules && nodeRules.length > 0 && rulesetNode.paths.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } else { - rulesetNode.accept(this._visitor); - visitArgs.visitDeeper = false; - if (rulesetNode.firstRoot || (rulesetNode.rules && rulesetNode.rules.length > 0)) { - rulesets.splice(0, 0, rulesetNode); - } - } - if (rulesets.length === 1) { - return rulesets[0]; - } - return rulesets; - }, - - _removeDuplicateRules: function(rules) { - if (!rules) { return; } - - // remove duplicates - var ruleCache = {}, - ruleList, rule, i; - - for(i = rules.length - 1; i >= 0 ; i--) { - rule = rules[i]; - if (rule instanceof tree.Rule) { - if (!ruleCache[rule.name]) { - ruleCache[rule.name] = rule; - } else { - ruleList = ruleCache[rule.name]; - if (ruleList instanceof tree.Rule) { - ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)]; - } - var ruleCSS = rule.toCSS(this._env); - if (ruleList.indexOf(ruleCSS) !== -1) { - rules.splice(i, 1); - } else { - ruleList.push(ruleCSS); - } - } - } - } - }, - - _mergeRules: function (rules) { - if (!rules) { return; } - - var groups = {}, - parts, - rule, - key; - - for (var i = 0; i < rules.length; i++) { - rule = rules[i]; - - if ((rule instanceof tree.Rule) && rule.merge) { - key = [rule.name, - rule.important ? "!" : ""].join(","); - - if (!groups[key]) { - groups[key] = []; - } else { - rules.splice(i--, 1); - } - - groups[key].push(rule); - } - } - - Object.keys(groups).map(function (k) { - parts = groups[k]; - - if (parts.length > 1) { - rule = parts[0]; - - rule.value = new (tree.Value)(parts.map(function (p) { - return p.value; - })); - } - }); - } - }; - -})(require('./tree')); -(function (tree) { - /*jshint loopfunc:true */ - - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - var rules = rulesetNode.rules, ruleCnt = rules ? rules.length : 0; - for(i = 0; i < ruleCnt; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rules[i]); - rulesetNode.extendOnEveryPath = true; - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - var paths = rulesetNode.paths; - for(i = 0; i < paths.length; i++) { - var selectorPath = paths[i], - selector = selectorPath[selectorPath.length - 1], - selExtendList = selector.extendList; - - extendList = selExtendList ? selExtendList.slice(0).concat(allSelectorsExtendList) - : allSelectorsExtendList; - - if (extendList) { - extendList = extendList.map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - } - - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if( extend.parent_ids.indexOf( targetExtend.object_id ) >= 0 ){ continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parent_ids = newExtend.parent_ids.concat(targetExtend.parent_ids, extend.parent_ids); - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (rulesetNode.extendOnEveryPath) { continue; } - var extendList = selectorPath[selectorPath.length-1].extendList; - if (extendList && extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator === '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - elementValue1 = elementValue1.value; - elementValue2 = elementValue2.value; - if (elementValue1 instanceof tree.Selector) { - if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) { - return false; - } - for(var i = 0; i currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - newElements = selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)); - - if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) { - path[path.length - 1].elements = - path[path.length - 1].elements.concat(newElements); - } else { - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - newElements - )); - } - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.sourceMapOutput = function (options) { - this._css = []; - this._rootNode = options.rootNode; - this._writeSourceMap = options.writeSourceMap; - this._contentsMap = options.contentsMap; - this._contentsIgnoredCharsMap = options.contentsIgnoredCharsMap; - this._sourceMapFilename = options.sourceMapFilename; - this._outputFilename = options.outputFilename; - this._sourceMapURL = options.sourceMapURL; - if (options.sourceMapBasepath) { - this._sourceMapBasepath = options.sourceMapBasepath.replace(/\\/g, '/'); - } - this._sourceMapRootpath = options.sourceMapRootpath; - this._outputSourceFiles = options.outputSourceFiles; - this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator; - - if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') { - this._sourceMapRootpath += '/'; - } - - this._lineNumber = 0; - this._column = 0; - }; - - tree.sourceMapOutput.prototype.normalizeFilename = function(filename) { - filename = filename.replace(/\\/g, '/'); - - if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) { - filename = filename.substring(this._sourceMapBasepath.length); - if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') { - filename = filename.substring(1); - } - } - return (this._sourceMapRootpath || "") + filename; - }; - - tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) { - - //ignore adding empty strings - if (!chunk) { - return; - } - - var lines, - sourceLines, - columns, - sourceColumns, - i; - - if (fileInfo) { - var inputSource = this._contentsMap[fileInfo.filename]; - - // remove vars/banner added to the top of the file - if (this._contentsIgnoredCharsMap[fileInfo.filename]) { - // adjust the index - index -= this._contentsIgnoredCharsMap[fileInfo.filename]; - if (index < 0) { index = 0; } - // adjust the source - inputSource = inputSource.slice(this._contentsIgnoredCharsMap[fileInfo.filename]); - } - inputSource = inputSource.substring(0, index); - sourceLines = inputSource.split("\n"); - sourceColumns = sourceLines[sourceLines.length-1]; - } - - lines = chunk.split("\n"); - columns = lines[lines.length-1]; - - if (fileInfo) { - if (!mapLines) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column}, - original: { line: sourceLines.length, column: sourceColumns.length}, - source: this.normalizeFilename(fileInfo.filename)}); - } else { - for(i = 0; i < lines.length; i++) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0}, - original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0}, - source: this.normalizeFilename(fileInfo.filename)}); - } - } - } - - if (lines.length === 1) { - this._column += columns.length; - } else { - this._lineNumber += lines.length - 1; - this._column = columns.length; - } - - this._css.push(chunk); - }; - - tree.sourceMapOutput.prototype.isEmpty = function() { - return this._css.length === 0; - }; - - tree.sourceMapOutput.prototype.toCSS = function(env) { - this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null }); - - if (this._outputSourceFiles) { - for(var filename in this._contentsMap) { - if (this._contentsMap.hasOwnProperty(filename)) - { - var source = this._contentsMap[filename]; - if (this._contentsIgnoredCharsMap[filename]) { - source = source.slice(this._contentsIgnoredCharsMap[filename]); - } - this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), source); - } - } - } - - this._rootNode.genCSS(env, this); - - if (this._css.length > 0) { - var sourceMapURL, - sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); - - if (this._sourceMapURL) { - sourceMapURL = this._sourceMapURL; - } else if (this._sourceMapFilename) { - sourceMapURL = this.normalizeFilename(this._sourceMapFilename); - } - - if (this._writeSourceMap) { - this._writeSourceMap(sourceMapContent); - } else { - sourceMapURL = "data:application/json," + encodeURIComponent(sourceMapContent); - } - - if (sourceMapURL) { - this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */"); - } - } - - return this._css.join(''); - }; - -})(require('./tree')); - -// wraps the source-map code in a less module -(function() { - less.modules["source-map"] = function() { - -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ - -/** - * Define a module along with a payload. - * @param {string} moduleName Name for the payload - * @param {ignored} deps Ignored. For compatibility with CommonJS AMD Spec - * @param {function} payload Function with (require, exports, module) params - */ -function define(moduleName, deps, payload) { - if (typeof moduleName != "string") { - throw new TypeError('Expected string, got: ' + moduleName); - } - - if (arguments.length == 2) { - payload = deps; - } - - if (moduleName in define.modules) { - throw new Error("Module already defined: " + moduleName); - } - define.modules[moduleName] = payload; -}; - -/** - * The global store of un-instantiated modules - */ -define.modules = {}; - - -/** - * We invoke require() in the context of a Domain so we can have multiple - * sets of modules running separate from each other. - * This contrasts with JSMs which are singletons, Domains allows us to - * optionally load a CommonJS module twice with separate data each time. - * Perhaps you want 2 command lines with a different set of commands in each, - * for example. - */ -function Domain() { - this.modules = {}; - this._currentModule = null; -} - -(function () { - - /** - * Lookup module names and resolve them by calling the definition function if - * needed. - * There are 2 ways to call this, either with an array of dependencies and a - * callback to call when the dependencies are found (which can happen - * asynchronously in an in-page context) or with a single string an no callback - * where the dependency is resolved synchronously and returned. - * The API is designed to be compatible with the CommonJS AMD spec and - * RequireJS. - * @param {string[]|string} deps A name, or names for the payload - * @param {function|undefined} callback Function to call when the dependencies - * are resolved - * @return {undefined|object} The module required or undefined for - * array/callback method - */ - Domain.prototype.require = function(deps, callback) { - if (Array.isArray(deps)) { - var params = deps.map(function(dep) { - return this.lookup(dep); - }, this); - if (callback) { - callback.apply(null, params); - } - return undefined; - } - else { - return this.lookup(deps); - } - }; - - function normalize(path) { - var bits = path.split('/'); - var i = 1; - while (i < bits.length) { - if (bits[i] === '..') { - bits.splice(i-1, 1); - } else if (bits[i] === '.') { - bits.splice(i, 1); - } else { - i++; - } - } - return bits.join('/'); - } - - function join(a, b) { - a = a.trim(); - b = b.trim(); - if (/^\//.test(b)) { - return b; - } else { - return a.replace(/\/*$/, '/') + b; - } - } - - function dirname(path) { - var bits = path.split('/'); - bits.pop(); - return bits.join('/'); - } - - /** - * Lookup module names and resolve them by calling the definition function if - * needed. - * @param {string} moduleName A name for the payload to lookup - * @return {object} The module specified by aModuleName or null if not found. - */ - Domain.prototype.lookup = function(moduleName) { - if (/^\./.test(moduleName)) { - moduleName = normalize(join(dirname(this._currentModule), moduleName)); - } - - if (moduleName in this.modules) { - var module = this.modules[moduleName]; - return module; - } - - if (!(moduleName in define.modules)) { - throw new Error("Module not defined: " + moduleName); - } - - var module = define.modules[moduleName]; - - if (typeof module == "function") { - var exports = {}; - var previousModule = this._currentModule; - this._currentModule = moduleName; - module(this.require.bind(this), exports, { id: moduleName, uri: "" }); - this._currentModule = previousModule; - module = exports; - } - - // cache the resulting module object for next time - this.modules[moduleName] = module; - - return module; - }; - -}()); - -define.Domain = Domain; -define.globalDomain = new Domain(); -var require = define.globalDomain.require.bind(define.globalDomain); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/source-map-generator', ['require', 'exports', 'module' , 'source-map/base64-vlq', 'source-map/util', 'source-map/array-set'], function(require, exports, module) { - - var base64VLQ = require('./base64-vlq'); - var util = require('./util'); - var ArraySet = require('./array-set').ArraySet; - - /** - * An instance of the SourceMapGenerator represents a source map which is - * being built incrementally. To create a new one, you must pass an object - * with the following properties: - * - * - file: The filename of the generated source. - * - sourceRoot: An optional root for all URLs in this source map. - */ - function SourceMapGenerator(aArgs) { - this._file = util.getArg(aArgs, 'file'); - this._sourceRoot = util.getArg(aArgs, 'sourceRoot', null); - this._sources = new ArraySet(); - this._names = new ArraySet(); - this._mappings = []; - this._sourcesContents = null; - } - - SourceMapGenerator.prototype._version = 3; - - /** - * Creates a new SourceMapGenerator based on a SourceMapConsumer - * - * @param aSourceMapConsumer The SourceMap. - */ - SourceMapGenerator.fromSourceMap = - function SourceMapGenerator_fromSourceMap(aSourceMapConsumer) { - var sourceRoot = aSourceMapConsumer.sourceRoot; - var generator = new SourceMapGenerator({ - file: aSourceMapConsumer.file, - sourceRoot: sourceRoot - }); - aSourceMapConsumer.eachMapping(function (mapping) { - var newMapping = { - generated: { - line: mapping.generatedLine, - column: mapping.generatedColumn - } - }; - - if (mapping.source) { - newMapping.source = mapping.source; - if (sourceRoot) { - newMapping.source = util.relative(sourceRoot, newMapping.source); - } - - newMapping.original = { - line: mapping.originalLine, - column: mapping.originalColumn - }; - - if (mapping.name) { - newMapping.name = mapping.name; - } - } - - generator.addMapping(newMapping); - }); - aSourceMapConsumer.sources.forEach(function (sourceFile) { - var content = aSourceMapConsumer.sourceContentFor(sourceFile); - if (content) { - generator.setSourceContent(sourceFile, content); - } - }); - return generator; - }; - - /** - * Add a single mapping from original source line and column to the generated - * source's line and column for this source map being created. The mapping - * object should have the following properties: - * - * - generated: An object with the generated line and column positions. - * - original: An object with the original line and column positions. - * - source: The original source file (relative to the sourceRoot). - * - name: An optional original token name for this mapping. - */ - SourceMapGenerator.prototype.addMapping = - function SourceMapGenerator_addMapping(aArgs) { - var generated = util.getArg(aArgs, 'generated'); - var original = util.getArg(aArgs, 'original', null); - var source = util.getArg(aArgs, 'source', null); - var name = util.getArg(aArgs, 'name', null); - - this._validateMapping(generated, original, source, name); - - if (source && !this._sources.has(source)) { - this._sources.add(source); - } - - if (name && !this._names.has(name)) { - this._names.add(name); - } - - this._mappings.push({ - generatedLine: generated.line, - generatedColumn: generated.column, - originalLine: original != null && original.line, - originalColumn: original != null && original.column, - source: source, - name: name - }); - }; - - /** - * Set the source content for a source file. - */ - SourceMapGenerator.prototype.setSourceContent = - function SourceMapGenerator_setSourceContent(aSourceFile, aSourceContent) { - var source = aSourceFile; - if (this._sourceRoot) { - source = util.relative(this._sourceRoot, source); - } - - if (aSourceContent !== null) { - // Add the source content to the _sourcesContents map. - // Create a new _sourcesContents map if the property is null. - if (!this._sourcesContents) { - this._sourcesContents = {}; - } - this._sourcesContents[util.toSetString(source)] = aSourceContent; - } else { - // Remove the source file from the _sourcesContents map. - // If the _sourcesContents map is empty, set the property to null. - delete this._sourcesContents[util.toSetString(source)]; - if (Object.keys(this._sourcesContents).length === 0) { - this._sourcesContents = null; - } - } - }; - - /** - * Applies the mappings of a sub-source-map for a specific source file to the - * source map being generated. Each mapping to the supplied source file is - * rewritten using the supplied source map. Note: The resolution for the - * resulting mappings is the minimium of this map and the supplied map. - * - * @param aSourceMapConsumer The source map to be applied. - * @param aSourceFile Optional. The filename of the source file. - * If omitted, SourceMapConsumer's file property will be used. - */ - SourceMapGenerator.prototype.applySourceMap = - function SourceMapGenerator_applySourceMap(aSourceMapConsumer, aSourceFile) { - // If aSourceFile is omitted, we will use the file property of the SourceMap - if (!aSourceFile) { - aSourceFile = aSourceMapConsumer.file; - } - var sourceRoot = this._sourceRoot; - // Make "aSourceFile" relative if an absolute Url is passed. - if (sourceRoot) { - aSourceFile = util.relative(sourceRoot, aSourceFile); - } - // Applying the SourceMap can add and remove items from the sources and - // the names array. - var newSources = new ArraySet(); - var newNames = new ArraySet(); - - // Find mappings for the "aSourceFile" - this._mappings.forEach(function (mapping) { - if (mapping.source === aSourceFile && mapping.originalLine) { - // Check if it can be mapped by the source map, then update the mapping. - var original = aSourceMapConsumer.originalPositionFor({ - line: mapping.originalLine, - column: mapping.originalColumn - }); - if (original.source !== null) { - // Copy mapping - if (sourceRoot) { - mapping.source = util.relative(sourceRoot, original.source); - } else { - mapping.source = original.source; - } - mapping.originalLine = original.line; - mapping.originalColumn = original.column; - if (original.name !== null && mapping.name !== null) { - // Only use the identifier name if it's an identifier - // in both SourceMaps - mapping.name = original.name; - } - } - } - - var source = mapping.source; - if (source && !newSources.has(source)) { - newSources.add(source); - } - - var name = mapping.name; - if (name && !newNames.has(name)) { - newNames.add(name); - } - - }, this); - this._sources = newSources; - this._names = newNames; - - // Copy sourcesContents of applied map. - aSourceMapConsumer.sources.forEach(function (sourceFile) { - var content = aSourceMapConsumer.sourceContentFor(sourceFile); - if (content) { - if (sourceRoot) { - sourceFile = util.relative(sourceRoot, sourceFile); - } - this.setSourceContent(sourceFile, content); - } - }, this); - }; - - /** - * A mapping can have one of the three levels of data: - * - * 1. Just the generated position. - * 2. The Generated position, original position, and original source. - * 3. Generated and original position, original source, as well as a name - * token. - * - * To maintain consistency, we validate that any new mapping being added falls - * in to one of these categories. - */ - SourceMapGenerator.prototype._validateMapping = - function SourceMapGenerator_validateMapping(aGenerated, aOriginal, aSource, - aName) { - if (aGenerated && 'line' in aGenerated && 'column' in aGenerated - && aGenerated.line > 0 && aGenerated.column >= 0 - && !aOriginal && !aSource && !aName) { - // Case 1. - return; - } - else if (aGenerated && 'line' in aGenerated && 'column' in aGenerated - && aOriginal && 'line' in aOriginal && 'column' in aOriginal - && aGenerated.line > 0 && aGenerated.column >= 0 - && aOriginal.line > 0 && aOriginal.column >= 0 - && aSource) { - // Cases 2 and 3. - return; - } - else { - throw new Error('Invalid mapping: ' + JSON.stringify({ - generated: aGenerated, - source: aSource, - original: aOriginal, - name: aName - })); - } - }; - - /** - * Serialize the accumulated mappings in to the stream of base 64 VLQs - * specified by the source map format. - */ - SourceMapGenerator.prototype._serializeMappings = - function SourceMapGenerator_serializeMappings() { - var previousGeneratedColumn = 0; - var previousGeneratedLine = 1; - var previousOriginalColumn = 0; - var previousOriginalLine = 0; - var previousName = 0; - var previousSource = 0; - var result = ''; - var mapping; - - // The mappings must be guaranteed to be in sorted order before we start - // serializing them or else the generated line numbers (which are defined - // via the ';' separators) will be all messed up. Note: it might be more - // performant to maintain the sorting as we insert them, rather than as we - // serialize them, but the big O is the same either way. - this._mappings.sort(util.compareByGeneratedPositions); - - for (var i = 0, len = this._mappings.length; i < len; i++) { - mapping = this._mappings[i]; - - if (mapping.generatedLine !== previousGeneratedLine) { - previousGeneratedColumn = 0; - while (mapping.generatedLine !== previousGeneratedLine) { - result += ';'; - previousGeneratedLine++; - } - } - else { - if (i > 0) { - if (!util.compareByGeneratedPositions(mapping, this._mappings[i - 1])) { - continue; - } - result += ','; - } - } - - result += base64VLQ.encode(mapping.generatedColumn - - previousGeneratedColumn); - previousGeneratedColumn = mapping.generatedColumn; - - if (mapping.source) { - result += base64VLQ.encode(this._sources.indexOf(mapping.source) - - previousSource); - previousSource = this._sources.indexOf(mapping.source); - - // lines are stored 0-based in SourceMap spec version 3 - result += base64VLQ.encode(mapping.originalLine - 1 - - previousOriginalLine); - previousOriginalLine = mapping.originalLine - 1; - - result += base64VLQ.encode(mapping.originalColumn - - previousOriginalColumn); - previousOriginalColumn = mapping.originalColumn; - - if (mapping.name) { - result += base64VLQ.encode(this._names.indexOf(mapping.name) - - previousName); - previousName = this._names.indexOf(mapping.name); - } - } - } - - return result; - }; - - SourceMapGenerator.prototype._generateSourcesContent = - function SourceMapGenerator_generateSourcesContent(aSources, aSourceRoot) { - return aSources.map(function (source) { - if (!this._sourcesContents) { - return null; - } - if (aSourceRoot) { - source = util.relative(aSourceRoot, source); - } - var key = util.toSetString(source); - return Object.prototype.hasOwnProperty.call(this._sourcesContents, - key) - ? this._sourcesContents[key] - : null; - }, this); - }; - - /** - * Externalize the source map. - */ - SourceMapGenerator.prototype.toJSON = - function SourceMapGenerator_toJSON() { - var map = { - version: this._version, - file: this._file, - sources: this._sources.toArray(), - names: this._names.toArray(), - mappings: this._serializeMappings() - }; - if (this._sourceRoot) { - map.sourceRoot = this._sourceRoot; - } - if (this._sourcesContents) { - map.sourcesContent = this._generateSourcesContent(map.sources, map.sourceRoot); - } - - return map; - }; - - /** - * Render the source map being generated to a string. - */ - SourceMapGenerator.prototype.toString = - function SourceMapGenerator_toString() { - return JSON.stringify(this); - }; - - exports.SourceMapGenerator = SourceMapGenerator; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - * - * Based on the Base 64 VLQ implementation in Closure Compiler: - * https://code.google.com/p/closure-compiler/source/browse/trunk/src/com/google/debugging/sourcemap/Base64VLQ.java - * - * Copyright 2011 The Closure Compiler Authors. All rights reserved. - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following - * disclaimer in the documentation and/or other materials provided - * with the distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ -define('source-map/base64-vlq', ['require', 'exports', 'module' , 'source-map/base64'], function(require, exports, module) { - - var base64 = require('./base64'); - - // A single base 64 digit can contain 6 bits of data. For the base 64 variable - // length quantities we use in the source map spec, the first bit is the sign, - // the next four bits are the actual value, and the 6th bit is the - // continuation bit. The continuation bit tells us whether there are more - // digits in this value following this digit. - // - // Continuation - // | Sign - // | | - // V V - // 101011 - - var VLQ_BASE_SHIFT = 5; - - // binary: 100000 - var VLQ_BASE = 1 << VLQ_BASE_SHIFT; - - // binary: 011111 - var VLQ_BASE_MASK = VLQ_BASE - 1; - - // binary: 100000 - var VLQ_CONTINUATION_BIT = VLQ_BASE; - - /** - * Converts from a two-complement value to a value where the sign bit is - * is placed in the least significant bit. For example, as decimals: - * 1 becomes 2 (10 binary), -1 becomes 3 (11 binary) - * 2 becomes 4 (100 binary), -2 becomes 5 (101 binary) - */ - function toVLQSigned(aValue) { - return aValue < 0 - ? ((-aValue) << 1) + 1 - : (aValue << 1) + 0; - } - - /** - * Converts to a two-complement value from a value where the sign bit is - * is placed in the least significant bit. For example, as decimals: - * 2 (10 binary) becomes 1, 3 (11 binary) becomes -1 - * 4 (100 binary) becomes 2, 5 (101 binary) becomes -2 - */ - function fromVLQSigned(aValue) { - var isNegative = (aValue & 1) === 1; - var shifted = aValue >> 1; - return isNegative - ? -shifted - : shifted; - } - - /** - * Returns the base 64 VLQ encoded value. - */ - exports.encode = function base64VLQ_encode(aValue) { - var encoded = ""; - var digit; - - var vlq = toVLQSigned(aValue); - - do { - digit = vlq & VLQ_BASE_MASK; - vlq >>>= VLQ_BASE_SHIFT; - if (vlq > 0) { - // There are still more digits in this value, so we must make sure the - // continuation bit is marked. - digit |= VLQ_CONTINUATION_BIT; - } - encoded += base64.encode(digit); - } while (vlq > 0); - - return encoded; - }; - - /** - * Decodes the next base 64 VLQ value from the given string and returns the - * value and the rest of the string. - */ - exports.decode = function base64VLQ_decode(aStr) { - var i = 0; - var strLen = aStr.length; - var result = 0; - var shift = 0; - var continuation, digit; - - do { - if (i >= strLen) { - throw new Error("Expected more digits in base 64 VLQ value."); - } - digit = base64.decode(aStr.charAt(i++)); - continuation = !!(digit & VLQ_CONTINUATION_BIT); - digit &= VLQ_BASE_MASK; - result = result + (digit << shift); - shift += VLQ_BASE_SHIFT; - } while (continuation); - - return { - value: fromVLQSigned(result), - rest: aStr.slice(i) - }; - }; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/base64', ['require', 'exports', 'module' , ], function(require, exports, module) { - - var charToIntMap = {}; - var intToCharMap = {}; - - 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/' - .split('') - .forEach(function (ch, index) { - charToIntMap[ch] = index; - intToCharMap[index] = ch; - }); - - /** - * Encode an integer in the range of 0 to 63 to a single base 64 digit. - */ - exports.encode = function base64_encode(aNumber) { - if (aNumber in intToCharMap) { - return intToCharMap[aNumber]; - } - throw new TypeError("Must be between 0 and 63: " + aNumber); - }; - - /** - * Decode a single base 64 digit to an integer. - */ - exports.decode = function base64_decode(aChar) { - if (aChar in charToIntMap) { - return charToIntMap[aChar]; - } - throw new TypeError("Not a valid base 64 digit: " + aChar); - }; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/util', ['require', 'exports', 'module' , ], function(require, exports, module) { - - /** - * This is a helper function for getting values from parameter/options - * objects. - * - * @param args The object we are extracting values from - * @param name The name of the property we are getting. - * @param defaultValue An optional value to return if the property is missing - * from the object. If this is not specified and the property is missing, an - * error will be thrown. - */ - function getArg(aArgs, aName, aDefaultValue) { - if (aName in aArgs) { - return aArgs[aName]; - } else if (arguments.length === 3) { - return aDefaultValue; - } else { - throw new Error('"' + aName + '" is a required argument.'); - } - } - exports.getArg = getArg; - - var urlRegexp = /([\w+\-.]+):\/\/((\w+:\w+)@)?([\w.]+)?(:(\d+))?(\S+)?/; - var dataUrlRegexp = /^data:.+\,.+/; - - function urlParse(aUrl) { - var match = aUrl.match(urlRegexp); - if (!match) { - return null; - } - return { - scheme: match[1], - auth: match[3], - host: match[4], - port: match[6], - path: match[7] - }; - } - exports.urlParse = urlParse; - - function urlGenerate(aParsedUrl) { - var url = aParsedUrl.scheme + "://"; - if (aParsedUrl.auth) { - url += aParsedUrl.auth + "@" - } - if (aParsedUrl.host) { - url += aParsedUrl.host; - } - if (aParsedUrl.port) { - url += ":" + aParsedUrl.port - } - if (aParsedUrl.path) { - url += aParsedUrl.path; - } - return url; - } - exports.urlGenerate = urlGenerate; - - function join(aRoot, aPath) { - var url; - - if (aPath.match(urlRegexp) || aPath.match(dataUrlRegexp)) { - return aPath; - } - - if (aPath.charAt(0) === '/' && (url = urlParse(aRoot))) { - url.path = aPath; - return urlGenerate(url); - } - - return aRoot.replace(/\/$/, '') + '/' + aPath; - } - exports.join = join; - - /** - * Because behavior goes wacky when you set `__proto__` on objects, we - * have to prefix all the strings in our set with an arbitrary character. - * - * See https://github.com/mozilla/source-map/pull/31 and - * https://github.com/mozilla/source-map/issues/30 - * - * @param String aStr - */ - function toSetString(aStr) { - return '$' + aStr; - } - exports.toSetString = toSetString; - - function fromSetString(aStr) { - return aStr.substr(1); - } - exports.fromSetString = fromSetString; - - function relative(aRoot, aPath) { - aRoot = aRoot.replace(/\/$/, ''); - - var url = urlParse(aRoot); - if (aPath.charAt(0) == "/" && url && url.path == "/") { - return aPath.slice(1); - } - - return aPath.indexOf(aRoot + '/') === 0 - ? aPath.substr(aRoot.length + 1) - : aPath; - } - exports.relative = relative; - - function strcmp(aStr1, aStr2) { - var s1 = aStr1 || ""; - var s2 = aStr2 || ""; - return (s1 > s2) - (s1 < s2); - } - - /** - * Comparator between two mappings where the original positions are compared. - * - * Optionally pass in `true` as `onlyCompareGenerated` to consider two - * mappings with the same original source/line/column, but different generated - * line and column the same. Useful when searching for a mapping with a - * stubbed out mapping. - */ - function compareByOriginalPositions(mappingA, mappingB, onlyCompareOriginal) { - var cmp; - - cmp = strcmp(mappingA.source, mappingB.source); - if (cmp) { - return cmp; - } - - cmp = mappingA.originalLine - mappingB.originalLine; - if (cmp) { - return cmp; - } - - cmp = mappingA.originalColumn - mappingB.originalColumn; - if (cmp || onlyCompareOriginal) { - return cmp; - } - - cmp = strcmp(mappingA.name, mappingB.name); - if (cmp) { - return cmp; - } - - cmp = mappingA.generatedLine - mappingB.generatedLine; - if (cmp) { - return cmp; - } - - return mappingA.generatedColumn - mappingB.generatedColumn; - }; - exports.compareByOriginalPositions = compareByOriginalPositions; - - /** - * Comparator between two mappings where the generated positions are - * compared. - * - * Optionally pass in `true` as `onlyCompareGenerated` to consider two - * mappings with the same generated line and column, but different - * source/name/original line and column the same. Useful when searching for a - * mapping with a stubbed out mapping. - */ - function compareByGeneratedPositions(mappingA, mappingB, onlyCompareGenerated) { - var cmp; - - cmp = mappingA.generatedLine - mappingB.generatedLine; - if (cmp) { - return cmp; - } - - cmp = mappingA.generatedColumn - mappingB.generatedColumn; - if (cmp || onlyCompareGenerated) { - return cmp; - } - - cmp = strcmp(mappingA.source, mappingB.source); - if (cmp) { - return cmp; - } - - cmp = mappingA.originalLine - mappingB.originalLine; - if (cmp) { - return cmp; - } - - cmp = mappingA.originalColumn - mappingB.originalColumn; - if (cmp) { - return cmp; - } - - return strcmp(mappingA.name, mappingB.name); - }; - exports.compareByGeneratedPositions = compareByGeneratedPositions; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/array-set', ['require', 'exports', 'module' , 'source-map/util'], function(require, exports, module) { - - var util = require('./util'); - - /** - * A data structure which is a combination of an array and a set. Adding a new - * member is O(1), testing for membership is O(1), and finding the index of an - * element is O(1). Removing elements from the set is not supported. Only - * strings are supported for membership. - */ - function ArraySet() { - this._array = []; - this._set = {}; - } - - /** - * Static method for creating ArraySet instances from an existing array. - */ - ArraySet.fromArray = function ArraySet_fromArray(aArray, aAllowDuplicates) { - var set = new ArraySet(); - for (var i = 0, len = aArray.length; i < len; i++) { - set.add(aArray[i], aAllowDuplicates); - } - return set; - }; - - /** - * Add the given string to this set. - * - * @param String aStr - */ - ArraySet.prototype.add = function ArraySet_add(aStr, aAllowDuplicates) { - var isDuplicate = this.has(aStr); - var idx = this._array.length; - if (!isDuplicate || aAllowDuplicates) { - this._array.push(aStr); - } - if (!isDuplicate) { - this._set[util.toSetString(aStr)] = idx; - } - }; - - /** - * Is the given string a member of this set? - * - * @param String aStr - */ - ArraySet.prototype.has = function ArraySet_has(aStr) { - return Object.prototype.hasOwnProperty.call(this._set, - util.toSetString(aStr)); - }; - - /** - * What is the index of the given string in the array? - * - * @param String aStr - */ - ArraySet.prototype.indexOf = function ArraySet_indexOf(aStr) { - if (this.has(aStr)) { - return this._set[util.toSetString(aStr)]; - } - throw new Error('"' + aStr + '" is not in the set.'); - }; - - /** - * What is the element at the given index? - * - * @param Number aIdx - */ - ArraySet.prototype.at = function ArraySet_at(aIdx) { - if (aIdx >= 0 && aIdx < this._array.length) { - return this._array[aIdx]; - } - throw new Error('No element indexed by ' + aIdx); - }; - - /** - * Returns the array representation of this set (which has the proper indices - * indicated by indexOf). Note that this is a copy of the internal array used - * for storing the members so that no one can mess with internal state. - */ - ArraySet.prototype.toArray = function ArraySet_toArray() { - return this._array.slice(); - }; - - exports.ArraySet = ArraySet; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/source-map-consumer', ['require', 'exports', 'module' , 'source-map/util', 'source-map/binary-search', 'source-map/array-set', 'source-map/base64-vlq'], function(require, exports, module) { - - var util = require('./util'); - var binarySearch = require('./binary-search'); - var ArraySet = require('./array-set').ArraySet; - var base64VLQ = require('./base64-vlq'); - - /** - * A SourceMapConsumer instance represents a parsed source map which we can - * query for information about the original file positions by giving it a file - * position in the generated source. - * - * The only parameter is the raw source map (either as a JSON string, or - * already parsed to an object). According to the spec, source maps have the - * following attributes: - * - * - version: Which version of the source map spec this map is following. - * - sources: An array of URLs to the original source files. - * - names: An array of identifiers which can be referrenced by individual mappings. - * - sourceRoot: Optional. The URL root from which all sources are relative. - * - sourcesContent: Optional. An array of contents of the original source files. - * - mappings: A string of base64 VLQs which contain the actual mappings. - * - file: The generated file this source map is associated with. - * - * Here is an example source map, taken from the source map spec[0]: - * - * { - * version : 3, - * file: "out.js", - * sourceRoot : "", - * sources: ["foo.js", "bar.js"], - * names: ["src", "maps", "are", "fun"], - * mappings: "AA,AB;;ABCDE;" - * } - * - * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit?pli=1# - */ - function SourceMapConsumer(aSourceMap) { - var sourceMap = aSourceMap; - if (typeof aSourceMap === 'string') { - sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, '')); - } - - var version = util.getArg(sourceMap, 'version'); - var sources = util.getArg(sourceMap, 'sources'); - // Sass 3.3 leaves out the 'names' array, so we deviate from the spec (which - // requires the array) to play nice here. - var names = util.getArg(sourceMap, 'names', []); - var sourceRoot = util.getArg(sourceMap, 'sourceRoot', null); - var sourcesContent = util.getArg(sourceMap, 'sourcesContent', null); - var mappings = util.getArg(sourceMap, 'mappings'); - var file = util.getArg(sourceMap, 'file', null); - - // Once again, Sass deviates from the spec and supplies the version as a - // string rather than a number, so we use loose equality checking here. - if (version != this._version) { - throw new Error('Unsupported version: ' + version); - } - - // Pass `true` below to allow duplicate names and sources. While source maps - // are intended to be compressed and deduplicated, the TypeScript compiler - // sometimes generates source maps with duplicates in them. See Github issue - // #72 and bugzil.la/889492. - this._names = ArraySet.fromArray(names, true); - this._sources = ArraySet.fromArray(sources, true); - - this.sourceRoot = sourceRoot; - this.sourcesContent = sourcesContent; - this._mappings = mappings; - this.file = file; - } - - /** - * Create a SourceMapConsumer from a SourceMapGenerator. - * - * @param SourceMapGenerator aSourceMap - * The source map that will be consumed. - * @returns SourceMapConsumer - */ - SourceMapConsumer.fromSourceMap = - function SourceMapConsumer_fromSourceMap(aSourceMap) { - var smc = Object.create(SourceMapConsumer.prototype); - - smc._names = ArraySet.fromArray(aSourceMap._names.toArray(), true); - smc._sources = ArraySet.fromArray(aSourceMap._sources.toArray(), true); - smc.sourceRoot = aSourceMap._sourceRoot; - smc.sourcesContent = aSourceMap._generateSourcesContent(smc._sources.toArray(), - smc.sourceRoot); - smc.file = aSourceMap._file; - - smc.__generatedMappings = aSourceMap._mappings.slice() - .sort(util.compareByGeneratedPositions); - smc.__originalMappings = aSourceMap._mappings.slice() - .sort(util.compareByOriginalPositions); - - return smc; - }; - - /** - * The version of the source mapping spec that we are consuming. - */ - SourceMapConsumer.prototype._version = 3; - - /** - * The list of original sources. - */ - Object.defineProperty(SourceMapConsumer.prototype, 'sources', { - get: function () { - return this._sources.toArray().map(function (s) { - return this.sourceRoot ? util.join(this.sourceRoot, s) : s; - }, this); - } - }); - - // `__generatedMappings` and `__originalMappings` are arrays that hold the - // parsed mapping coordinates from the source map's "mappings" attribute. They - // are lazily instantiated, accessed via the `_generatedMappings` and - // `_originalMappings` getters respectively, and we only parse the mappings - // and create these arrays once queried for a source location. We jump through - // these hoops because there can be many thousands of mappings, and parsing - // them is expensive, so we only want to do it if we must. - // - // Each object in the arrays is of the form: - // - // { - // generatedLine: The line number in the generated code, - // generatedColumn: The column number in the generated code, - // source: The path to the original source file that generated this - // chunk of code, - // originalLine: The line number in the original source that - // corresponds to this chunk of generated code, - // originalColumn: The column number in the original source that - // corresponds to this chunk of generated code, - // name: The name of the original symbol which generated this chunk of - // code. - // } - // - // All properties except for `generatedLine` and `generatedColumn` can be - // `null`. - // - // `_generatedMappings` is ordered by the generated positions. - // - // `_originalMappings` is ordered by the original positions. - - SourceMapConsumer.prototype.__generatedMappings = null; - Object.defineProperty(SourceMapConsumer.prototype, '_generatedMappings', { - get: function () { - if (!this.__generatedMappings) { - this.__generatedMappings = []; - this.__originalMappings = []; - this._parseMappings(this._mappings, this.sourceRoot); - } - - return this.__generatedMappings; - } - }); - - SourceMapConsumer.prototype.__originalMappings = null; - Object.defineProperty(SourceMapConsumer.prototype, '_originalMappings', { - get: function () { - if (!this.__originalMappings) { - this.__generatedMappings = []; - this.__originalMappings = []; - this._parseMappings(this._mappings, this.sourceRoot); - } - - return this.__originalMappings; - } - }); - - /** - * Parse the mappings in a string in to a data structure which we can easily - * query (the ordered arrays in the `this.__generatedMappings` and - * `this.__originalMappings` properties). - */ - SourceMapConsumer.prototype._parseMappings = - function SourceMapConsumer_parseMappings(aStr, aSourceRoot) { - var generatedLine = 1; - var previousGeneratedColumn = 0; - var previousOriginalLine = 0; - var previousOriginalColumn = 0; - var previousSource = 0; - var previousName = 0; - var mappingSeparator = /^[,;]/; - var str = aStr; - var mapping; - var temp; - - while (str.length > 0) { - if (str.charAt(0) === ';') { - generatedLine++; - str = str.slice(1); - previousGeneratedColumn = 0; - } - else if (str.charAt(0) === ',') { - str = str.slice(1); - } - else { - mapping = {}; - mapping.generatedLine = generatedLine; - - // Generated column. - temp = base64VLQ.decode(str); - mapping.generatedColumn = previousGeneratedColumn + temp.value; - previousGeneratedColumn = mapping.generatedColumn; - str = temp.rest; - - if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) { - // Original source. - temp = base64VLQ.decode(str); - mapping.source = this._sources.at(previousSource + temp.value); - previousSource += temp.value; - str = temp.rest; - if (str.length === 0 || mappingSeparator.test(str.charAt(0))) { - throw new Error('Found a source, but no line and column'); - } - - // Original line. - temp = base64VLQ.decode(str); - mapping.originalLine = previousOriginalLine + temp.value; - previousOriginalLine = mapping.originalLine; - // Lines are stored 0-based - mapping.originalLine += 1; - str = temp.rest; - if (str.length === 0 || mappingSeparator.test(str.charAt(0))) { - throw new Error('Found a source and line, but no column'); - } - - // Original column. - temp = base64VLQ.decode(str); - mapping.originalColumn = previousOriginalColumn + temp.value; - previousOriginalColumn = mapping.originalColumn; - str = temp.rest; - - if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) { - // Original name. - temp = base64VLQ.decode(str); - mapping.name = this._names.at(previousName + temp.value); - previousName += temp.value; - str = temp.rest; - } - } - - this.__generatedMappings.push(mapping); - if (typeof mapping.originalLine === 'number') { - this.__originalMappings.push(mapping); - } - } - } - - this.__originalMappings.sort(util.compareByOriginalPositions); - }; - - /** - * Find the mapping that best matches the hypothetical "needle" mapping that - * we are searching for in the given "haystack" of mappings. - */ - SourceMapConsumer.prototype._findMapping = - function SourceMapConsumer_findMapping(aNeedle, aMappings, aLineName, - aColumnName, aComparator) { - // To return the position we are searching for, we must first find the - // mapping for the given position and then return the opposite position it - // points to. Because the mappings are sorted, we can use binary search to - // find the best mapping. - - if (aNeedle[aLineName] <= 0) { - throw new TypeError('Line must be greater than or equal to 1, got ' - + aNeedle[aLineName]); - } - if (aNeedle[aColumnName] < 0) { - throw new TypeError('Column must be greater than or equal to 0, got ' - + aNeedle[aColumnName]); - } - - return binarySearch.search(aNeedle, aMappings, aComparator); - }; - - /** - * Returns the original source, line, and column information for the generated - * source's line and column positions provided. The only argument is an object - * with the following properties: - * - * - line: The line number in the generated source. - * - column: The column number in the generated source. - * - * and an object is returned with the following properties: - * - * - source: The original source file, or null. - * - line: The line number in the original source, or null. - * - column: The column number in the original source, or null. - * - name: The original identifier, or null. - */ - SourceMapConsumer.prototype.originalPositionFor = - function SourceMapConsumer_originalPositionFor(aArgs) { - var needle = { - generatedLine: util.getArg(aArgs, 'line'), - generatedColumn: util.getArg(aArgs, 'column') - }; - - var mapping = this._findMapping(needle, - this._generatedMappings, - "generatedLine", - "generatedColumn", - util.compareByGeneratedPositions); - - if (mapping) { - var source = util.getArg(mapping, 'source', null); - if (source && this.sourceRoot) { - source = util.join(this.sourceRoot, source); - } - return { - source: source, - line: util.getArg(mapping, 'originalLine', null), - column: util.getArg(mapping, 'originalColumn', null), - name: util.getArg(mapping, 'name', null) - }; - } - - return { - source: null, - line: null, - column: null, - name: null - }; - }; - - /** - * Returns the original source content. The only argument is the url of the - * original source file. Returns null if no original source content is - * availible. - */ - SourceMapConsumer.prototype.sourceContentFor = - function SourceMapConsumer_sourceContentFor(aSource) { - if (!this.sourcesContent) { - return null; - } - - if (this.sourceRoot) { - aSource = util.relative(this.sourceRoot, aSource); - } - - if (this._sources.has(aSource)) { - return this.sourcesContent[this._sources.indexOf(aSource)]; - } - - var url; - if (this.sourceRoot - && (url = util.urlParse(this.sourceRoot))) { - // XXX: file:// URIs and absolute paths lead to unexpected behavior for - // many users. We can help them out when they expect file:// URIs to - // behave like it would if they were running a local HTTP server. See - // https://bugzilla.mozilla.org/show_bug.cgi?id=885597. - var fileUriAbsPath = aSource.replace(/^file:\/\//, ""); - if (url.scheme == "file" - && this._sources.has(fileUriAbsPath)) { - return this.sourcesContent[this._sources.indexOf(fileUriAbsPath)] - } - - if ((!url.path || url.path == "/") - && this._sources.has("/" + aSource)) { - return this.sourcesContent[this._sources.indexOf("/" + aSource)]; - } - } - - throw new Error('"' + aSource + '" is not in the SourceMap.'); - }; - - /** - * Returns the generated line and column information for the original source, - * line, and column positions provided. The only argument is an object with - * the following properties: - * - * - source: The filename of the original source. - * - line: The line number in the original source. - * - column: The column number in the original source. - * - * and an object is returned with the following properties: - * - * - line: The line number in the generated source, or null. - * - column: The column number in the generated source, or null. - */ - SourceMapConsumer.prototype.generatedPositionFor = - function SourceMapConsumer_generatedPositionFor(aArgs) { - var needle = { - source: util.getArg(aArgs, 'source'), - originalLine: util.getArg(aArgs, 'line'), - originalColumn: util.getArg(aArgs, 'column') - }; - - if (this.sourceRoot) { - needle.source = util.relative(this.sourceRoot, needle.source); - } - - var mapping = this._findMapping(needle, - this._originalMappings, - "originalLine", - "originalColumn", - util.compareByOriginalPositions); - - if (mapping) { - return { - line: util.getArg(mapping, 'generatedLine', null), - column: util.getArg(mapping, 'generatedColumn', null) - }; - } - - return { - line: null, - column: null - }; - }; - - SourceMapConsumer.GENERATED_ORDER = 1; - SourceMapConsumer.ORIGINAL_ORDER = 2; - - /** - * Iterate over each mapping between an original source/line/column and a - * generated line/column in this source map. - * - * @param Function aCallback - * The function that is called with each mapping. - * @param Object aContext - * Optional. If specified, this object will be the value of `this` every - * time that `aCallback` is called. - * @param aOrder - * Either `SourceMapConsumer.GENERATED_ORDER` or - * `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to - * iterate over the mappings sorted by the generated file's line/column - * order or the original's source/line/column order, respectively. Defaults to - * `SourceMapConsumer.GENERATED_ORDER`. - */ - SourceMapConsumer.prototype.eachMapping = - function SourceMapConsumer_eachMapping(aCallback, aContext, aOrder) { - var context = aContext || null; - var order = aOrder || SourceMapConsumer.GENERATED_ORDER; - - var mappings; - switch (order) { - case SourceMapConsumer.GENERATED_ORDER: - mappings = this._generatedMappings; - break; - case SourceMapConsumer.ORIGINAL_ORDER: - mappings = this._originalMappings; - break; - default: - throw new Error("Unknown order of iteration."); - } - - var sourceRoot = this.sourceRoot; - mappings.map(function (mapping) { - var source = mapping.source; - if (source && sourceRoot) { - source = util.join(sourceRoot, source); - } - return { - source: source, - generatedLine: mapping.generatedLine, - generatedColumn: mapping.generatedColumn, - originalLine: mapping.originalLine, - originalColumn: mapping.originalColumn, - name: mapping.name - }; - }).forEach(aCallback, context); - }; - - exports.SourceMapConsumer = SourceMapConsumer; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/binary-search', ['require', 'exports', 'module' , ], function(require, exports, module) { - - /** - * Recursive implementation of binary search. - * - * @param aLow Indices here and lower do not contain the needle. - * @param aHigh Indices here and higher do not contain the needle. - * @param aNeedle The element being searched for. - * @param aHaystack The non-empty array being searched. - * @param aCompare Function which takes two elements and returns -1, 0, or 1. - */ - function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare) { - // This function terminates when one of the following is true: - // - // 1. We find the exact element we are looking for. - // - // 2. We did not find the exact element, but we can return the next - // closest element that is less than that element. - // - // 3. We did not find the exact element, and there is no next-closest - // element which is less than the one we are searching for, so we - // return null. - var mid = Math.floor((aHigh - aLow) / 2) + aLow; - var cmp = aCompare(aNeedle, aHaystack[mid], true); - if (cmp === 0) { - // Found the element we are looking for. - return aHaystack[mid]; - } - else if (cmp > 0) { - // aHaystack[mid] is greater than our needle. - if (aHigh - mid > 1) { - // The element is in the upper half. - return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare); - } - // We did not find an exact match, return the next closest one - // (termination case 2). - return aHaystack[mid]; - } - else { - // aHaystack[mid] is less than our needle. - if (mid - aLow > 1) { - // The element is in the lower half. - return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare); - } - // The exact needle element was not found in this haystack. Determine if - // we are in termination case (2) or (3) and return the appropriate thing. - return aLow < 0 - ? null - : aHaystack[aLow]; - } - } - - /** - * This is an implementation of binary search which will always try and return - * the next lowest value checked if there is no exact hit. This is because - * mappings between original and generated line/col pairs are single points, - * and there is an implicit region between each of them, so a miss just means - * that you aren't on the very start of a region. - * - * @param aNeedle The element you are looking for. - * @param aHaystack The array that is being searched. - * @param aCompare A function which takes the needle and an element in the - * array and returns -1, 0, or 1 depending on whether the needle is less - * than, equal to, or greater than the element, respectively. - */ - exports.search = function search(aNeedle, aHaystack, aCompare) { - return aHaystack.length > 0 - ? recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack, aCompare) - : null; - }; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/source-node', ['require', 'exports', 'module' , 'source-map/source-map-generator', 'source-map/util'], function(require, exports, module) { - - var SourceMapGenerator = require('./source-map-generator').SourceMapGenerator; - var util = require('./util'); - - /** - * SourceNodes provide a way to abstract over interpolating/concatenating - * snippets of generated JavaScript source code while maintaining the line and - * column information associated with the original source code. - * - * @param aLine The original line number. - * @param aColumn The original column number. - * @param aSource The original source's filename. - * @param aChunks Optional. An array of strings which are snippets of - * generated JS, or other SourceNodes. - * @param aName The original identifier. - */ - function SourceNode(aLine, aColumn, aSource, aChunks, aName) { - this.children = []; - this.sourceContents = {}; - this.line = aLine === undefined ? null : aLine; - this.column = aColumn === undefined ? null : aColumn; - this.source = aSource === undefined ? null : aSource; - this.name = aName === undefined ? null : aName; - if (aChunks != null) this.add(aChunks); - } - - /** - * Creates a SourceNode from generated code and a SourceMapConsumer. - * - * @param aGeneratedCode The generated code - * @param aSourceMapConsumer The SourceMap for the generated code - */ - SourceNode.fromStringWithSourceMap = - function SourceNode_fromStringWithSourceMap(aGeneratedCode, aSourceMapConsumer) { - // The SourceNode we want to fill with the generated code - // and the SourceMap - var node = new SourceNode(); - - // The generated code - // Processed fragments are removed from this array. - var remainingLines = aGeneratedCode.split('\n'); - - // We need to remember the position of "remainingLines" - var lastGeneratedLine = 1, lastGeneratedColumn = 0; - - // The generate SourceNodes we need a code range. - // To extract it current and last mapping is used. - // Here we store the last mapping. - var lastMapping = null; - - aSourceMapConsumer.eachMapping(function (mapping) { - if (lastMapping === null) { - // We add the generated code until the first mapping - // to the SourceNode without any mapping. - // Each line is added as separate string. - while (lastGeneratedLine < mapping.generatedLine) { - node.add(remainingLines.shift() + "\n"); - lastGeneratedLine++; - } - if (lastGeneratedColumn < mapping.generatedColumn) { - var nextLine = remainingLines[0]; - node.add(nextLine.substr(0, mapping.generatedColumn)); - remainingLines[0] = nextLine.substr(mapping.generatedColumn); - lastGeneratedColumn = mapping.generatedColumn; - } - } else { - // We add the code from "lastMapping" to "mapping": - // First check if there is a new line in between. - if (lastGeneratedLine < mapping.generatedLine) { - var code = ""; - // Associate full lines with "lastMapping" - do { - code += remainingLines.shift() + "\n"; - lastGeneratedLine++; - lastGeneratedColumn = 0; - } while (lastGeneratedLine < mapping.generatedLine); - // When we reached the correct line, we add code until we - // reach the correct column too. - if (lastGeneratedColumn < mapping.generatedColumn) { - var nextLine = remainingLines[0]; - code += nextLine.substr(0, mapping.generatedColumn); - remainingLines[0] = nextLine.substr(mapping.generatedColumn); - lastGeneratedColumn = mapping.generatedColumn; - } - // Create the SourceNode. - addMappingWithCode(lastMapping, code); - } else { - // There is no new line in between. - // Associate the code between "lastGeneratedColumn" and - // "mapping.generatedColumn" with "lastMapping" - var nextLine = remainingLines[0]; - var code = nextLine.substr(0, mapping.generatedColumn - - lastGeneratedColumn); - remainingLines[0] = nextLine.substr(mapping.generatedColumn - - lastGeneratedColumn); - lastGeneratedColumn = mapping.generatedColumn; - addMappingWithCode(lastMapping, code); - } - } - lastMapping = mapping; - }, this); - // We have processed all mappings. - // Associate the remaining code in the current line with "lastMapping" - // and add the remaining lines without any mapping - addMappingWithCode(lastMapping, remainingLines.join("\n")); - - // Copy sourcesContent into SourceNode - aSourceMapConsumer.sources.forEach(function (sourceFile) { - var content = aSourceMapConsumer.sourceContentFor(sourceFile); - if (content) { - node.setSourceContent(sourceFile, content); - } - }); - - return node; - - function addMappingWithCode(mapping, code) { - if (mapping === null || mapping.source === undefined) { - node.add(code); - } else { - node.add(new SourceNode(mapping.originalLine, - mapping.originalColumn, - mapping.source, - code, - mapping.name)); - } - } - }; - - /** - * Add a chunk of generated JS to this source node. - * - * @param aChunk A string snippet of generated JS code, another instance of - * SourceNode, or an array where each member is one of those things. - */ - SourceNode.prototype.add = function SourceNode_add(aChunk) { - if (Array.isArray(aChunk)) { - aChunk.forEach(function (chunk) { - this.add(chunk); - }, this); - } - else if (aChunk instanceof SourceNode || typeof aChunk === "string") { - if (aChunk) { - this.children.push(aChunk); - } - } - else { - throw new TypeError( - "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk - ); - } - return this; - }; - - /** - * Add a chunk of generated JS to the beginning of this source node. - * - * @param aChunk A string snippet of generated JS code, another instance of - * SourceNode, or an array where each member is one of those things. - */ - SourceNode.prototype.prepend = function SourceNode_prepend(aChunk) { - if (Array.isArray(aChunk)) { - for (var i = aChunk.length-1; i >= 0; i--) { - this.prepend(aChunk[i]); - } - } - else if (aChunk instanceof SourceNode || typeof aChunk === "string") { - this.children.unshift(aChunk); - } - else { - throw new TypeError( - "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk - ); - } - return this; - }; - - /** - * Walk over the tree of JS snippets in this node and its children. The - * walking function is called once for each snippet of JS and is passed that - * snippet and the its original associated source's line/column location. - * - * @param aFn The traversal function. - */ - SourceNode.prototype.walk = function SourceNode_walk(aFn) { - var chunk; - for (var i = 0, len = this.children.length; i < len; i++) { - chunk = this.children[i]; - if (chunk instanceof SourceNode) { - chunk.walk(aFn); - } - else { - if (chunk !== '') { - aFn(chunk, { source: this.source, - line: this.line, - column: this.column, - name: this.name }); - } - } - } - }; - - /** - * Like `String.prototype.join` except for SourceNodes. Inserts `aStr` between - * each of `this.children`. - * - * @param aSep The separator. - */ - SourceNode.prototype.join = function SourceNode_join(aSep) { - var newChildren; - var i; - var len = this.children.length; - if (len > 0) { - newChildren = []; - for (i = 0; i < len-1; i++) { - newChildren.push(this.children[i]); - newChildren.push(aSep); - } - newChildren.push(this.children[i]); - this.children = newChildren; - } - return this; - }; - - /** - * Call String.prototype.replace on the very right-most source snippet. Useful - * for trimming whitespace from the end of a source node, etc. - * - * @param aPattern The pattern to replace. - * @param aReplacement The thing to replace the pattern with. - */ - SourceNode.prototype.replaceRight = function SourceNode_replaceRight(aPattern, aReplacement) { - var lastChild = this.children[this.children.length - 1]; - if (lastChild instanceof SourceNode) { - lastChild.replaceRight(aPattern, aReplacement); - } - else if (typeof lastChild === 'string') { - this.children[this.children.length - 1] = lastChild.replace(aPattern, aReplacement); - } - else { - this.children.push(''.replace(aPattern, aReplacement)); - } - return this; - }; - - /** - * Set the source content for a source file. This will be added to the SourceMapGenerator - * in the sourcesContent field. - * - * @param aSourceFile The filename of the source file - * @param aSourceContent The content of the source file - */ - SourceNode.prototype.setSourceContent = - function SourceNode_setSourceContent(aSourceFile, aSourceContent) { - this.sourceContents[util.toSetString(aSourceFile)] = aSourceContent; - }; - - /** - * Walk over the tree of SourceNodes. The walking function is called for each - * source file content and is passed the filename and source content. - * - * @param aFn The traversal function. - */ - SourceNode.prototype.walkSourceContents = - function SourceNode_walkSourceContents(aFn) { - for (var i = 0, len = this.children.length; i < len; i++) { - if (this.children[i] instanceof SourceNode) { - this.children[i].walkSourceContents(aFn); - } - } - - var sources = Object.keys(this.sourceContents); - for (var i = 0, len = sources.length; i < len; i++) { - aFn(util.fromSetString(sources[i]), this.sourceContents[sources[i]]); - } - }; - - /** - * Return the string representation of this source node. Walks over the tree - * and concatenates all the various snippets together to one string. - */ - SourceNode.prototype.toString = function SourceNode_toString() { - var str = ""; - this.walk(function (chunk) { - str += chunk; - }); - return str; - }; - - /** - * Returns the string representation of this source node along with a source - * map. - */ - SourceNode.prototype.toStringWithSourceMap = function SourceNode_toStringWithSourceMap(aArgs) { - var generated = { - code: "", - line: 1, - column: 0 - }; - var map = new SourceMapGenerator(aArgs); - var sourceMappingActive = false; - var lastOriginalSource = null; - var lastOriginalLine = null; - var lastOriginalColumn = null; - var lastOriginalName = null; - this.walk(function (chunk, original) { - generated.code += chunk; - if (original.source !== null - && original.line !== null - && original.column !== null) { - if(lastOriginalSource !== original.source - || lastOriginalLine !== original.line - || lastOriginalColumn !== original.column - || lastOriginalName !== original.name) { - map.addMapping({ - source: original.source, - original: { - line: original.line, - column: original.column - }, - generated: { - line: generated.line, - column: generated.column - }, - name: original.name - }); - } - lastOriginalSource = original.source; - lastOriginalLine = original.line; - lastOriginalColumn = original.column; - lastOriginalName = original.name; - sourceMappingActive = true; - } else if (sourceMappingActive) { - map.addMapping({ - generated: { - line: generated.line, - column: generated.column - } - }); - lastOriginalSource = null; - sourceMappingActive = false; - } - chunk.split('').forEach(function (ch) { - if (ch === '\n') { - generated.line++; - generated.column = 0; - } else { - generated.column++; - } - }); - }); - this.walkSourceContents(function (sourceFile, sourceContent) { - map.setSourceContent(sourceFile, sourceContent); - }); - - return { code: generated.code, map: map }; - }; - - exports.SourceNode = SourceNode; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/////////////////////////////////////////////////////////////////////////////// - -this.sourceMap = { - SourceMapConsumer: require('source-map/source-map-consumer').SourceMapConsumer, - SourceMapGenerator: require('source-map/source-map-generator').SourceMapGenerator, - SourceNode: require('source-map/source-node').SourceNode -}; - -// footer to wrap "source-map" module - return this.sourceMap; - }(); -})(); \ No newline at end of file diff --git a/awx/ui/static/lib/less.js/dist/lessc-rhino-1.6.2.js b/awx/ui/static/lib/less.js/dist/lessc-rhino-1.6.2.js deleted file mode 100644 index 73dd4d25e3..0000000000 --- a/awx/ui/static/lib/less.js/dist/lessc-rhino-1.6.2.js +++ /dev/null @@ -1,449 +0,0 @@ -/* LESS.js v1.6.2 RHINO | Copyright (c) 2009-2014, Alexis Sellier */ - -/*global name:true, less, loadStyleSheet, os */ - -function formatError(ctx, options) { - options = options || {}; - - var message = ""; - var extract = ctx.extract; - var error = []; - -// var stylize = options.color ? require('./lessc_helper').stylize : function (str) { return str; }; - var stylize = function (str) { return str; }; - - // only output a stack if it isn't a less error - if (ctx.stack && !ctx.type) { return stylize(ctx.stack, 'red'); } - - if (!ctx.hasOwnProperty('index') || !extract) { - return ctx.stack || ctx.message; - } - - if (typeof(extract[0]) === 'string') { - error.push(stylize((ctx.line - 1) + ' ' + extract[0], 'grey')); - } - - if (typeof(extract[1]) === 'string') { - var errorTxt = ctx.line + ' '; - if (extract[1]) { - errorTxt += extract[1].slice(0, ctx.column) + - stylize(stylize(stylize(extract[1][ctx.column], 'bold') + - extract[1].slice(ctx.column + 1), 'red'), 'inverse'); - } - error.push(errorTxt); - } - - if (typeof(extract[2]) === 'string') { - error.push(stylize((ctx.line + 1) + ' ' + extract[2], 'grey')); - } - error = error.join('\n') + stylize('', 'reset') + '\n'; - - message += stylize(ctx.type + 'Error: ' + ctx.message, 'red'); - if (ctx.filename) { - message += stylize(' in ', 'red') + ctx.filename + - stylize(' on line ' + ctx.line + ', column ' + (ctx.column + 1) + ':', 'grey'); - } - - message += '\n' + error; - - if (ctx.callLine) { - message += stylize('from ', 'red') + (ctx.filename || '') + '/n'; - message += stylize(ctx.callLine, 'grey') + ' ' + ctx.callExtract + '/n'; - } - - return message; -} - -function writeError(ctx, options) { - options = options || {}; - if (options.silent) { return; } - print(formatError(ctx, options)); -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - var endOfPath = Math.max(name.lastIndexOf('/'), name.lastIndexOf('\\')), - sheetName = name.slice(0, endOfPath + 1) + sheet.href, - contents = sheet.contents || {}, - input = readFile(sheetName); - - input = input.replace(/^\xEF\xBB\xBF/, ''); - - contents[sheetName] = input; - - var parser = new less.Parser({ - paths: [sheet.href.replace(/[\w\.-]+$/, '')], - contents: contents - }); - parser.parse(input, function (e, root) { - if (e) { - return writeError(e); - } - try { - callback(e, root, input, sheet, { local: false, lastModified: 0, remaining: remaining }, sheetName); - } catch(e) { - writeError(e); - } - }); -} - -less.Parser.fileLoader = function (file, currentFileInfo, callback, env) { - - var href = file; - if (currentFileInfo && currentFileInfo.currentDirectory && !/^\//.test(file)) { - href = less.modules.path.join(currentFileInfo.currentDirectory, file); - } - - var path = less.modules.path.dirname(href); - - var newFileInfo = { - currentDirectory: path + '/', - filename: href - }; - - if (currentFileInfo) { - newFileInfo.entryPath = currentFileInfo.entryPath; - newFileInfo.rootpath = currentFileInfo.rootpath; - newFileInfo.rootFilename = currentFileInfo.rootFilename; - newFileInfo.relativeUrls = currentFileInfo.relativeUrls; - } else { - newFileInfo.entryPath = path; - newFileInfo.rootpath = less.rootpath || path; - newFileInfo.rootFilename = href; - newFileInfo.relativeUrls = env.relativeUrls; - } - - var j = file.lastIndexOf('/'); - if(newFileInfo.relativeUrls && !/^(?:[a-z-]+:|\/)/.test(file) && j != -1) { - var relativeSubDirectory = file.slice(0, j+1); - newFileInfo.rootpath = newFileInfo.rootpath + relativeSubDirectory; // append (sub|sup) directory path of imported file - } - newFileInfo.currentDirectory = path; - newFileInfo.filename = href; - - var data = null; - try { - data = readFile(href); - } catch (e) { - callback({ type: 'File', message: "'" + less.modules.path.basename(href) + "' wasn't found" }); - return; - } - - try { - callback(null, data, href, newFileInfo, { lastModified: 0 }); - } catch (e) { - callback(e, null, href); - } -}; - - -function writeFile(filename, content) { - var fstream = new java.io.FileWriter(filename); - var out = new java.io.BufferedWriter(fstream); - out.write(content); - out.close(); -} - -// Command line integration via Rhino -(function (args) { - - var options = { - depends: false, - compress: false, - cleancss: false, - max_line_len: -1, - optimization: 1, - silent: false, - verbose: false, - lint: false, - paths: [], - color: true, - strictImports: false, - rootpath: '', - relativeUrls: false, - ieCompat: true, - strictMath: false, - strictUnits: false - }; - var continueProcessing = true, - currentErrorcode; - - var checkArgFunc = function(arg, option) { - if (!option) { - print(arg + " option requires a parameter"); - continueProcessing = false; - return false; - } - return true; - }; - - var checkBooleanArg = function(arg) { - var onOff = /^((on|t|true|y|yes)|(off|f|false|n|no))$/i.exec(arg); - if (!onOff) { - print(" unable to parse "+arg+" as a boolean. use one of on/t/true/y/yes/off/f/false/n/no"); - continueProcessing = false; - return false; - } - return Boolean(onOff[2]); - }; - - var warningMessages = ""; - var sourceMapFileInline = false; - - args = args.filter(function (arg) { - var match = arg.match(/^-I(.+)$/); - - if (match) { - options.paths.push(match[1]); - return false; - } - - match = arg.match(/^--?([a-z][0-9a-z-]*)(?:=(.*))?$/i); - if (match) { arg = match[1]; } // was (?:=([^\s]*)), check! - else { return arg; } - - switch (arg) { - case 'v': - case 'version': - console.log("lessc " + less.version.join('.') + " (LESS Compiler) [JavaScript]"); - continueProcessing = false; - break; - case 'verbose': - options.verbose = true; - break; - case 's': - case 'silent': - options.silent = true; - break; - case 'l': - case 'lint': - options.lint = true; - break; - case 'strict-imports': - options.strictImports = true; - break; - case 'h': - case 'help': - //TODO -// require('../lib/less/lessc_helper').printUsage(); - continueProcessing = false; - break; - case 'x': - case 'compress': - options.compress = true; - break; - case 'M': - case 'depends': - options.depends = true; - break; - case 'yui-compress': - warningMessages += "yui-compress option has been removed. assuming clean-css."; - options.cleancss = true; - break; - case 'clean-css': - options.cleancss = true; - break; - case 'max-line-len': - if (checkArgFunc(arg, match[2])) { - options.maxLineLen = parseInt(match[2], 10); - if (options.maxLineLen <= 0) { - options.maxLineLen = -1; - } - } - break; - case 'no-color': - options.color = false; - break; - case 'no-ie-compat': - options.ieCompat = false; - break; - case 'no-js': - options.javascriptEnabled = false; - break; - case 'include-path': - if (checkArgFunc(arg, match[2])) { - options.paths = match[2].split(os.type().match(/Windows/) ? ';' : ':') - .map(function(p) { - if (p) { -// return path.resolve(process.cwd(), p); - return p; - } - }); - } - break; - case 'O0': options.optimization = 0; break; - case 'O1': options.optimization = 1; break; - case 'O2': options.optimization = 2; break; - case 'line-numbers': - if (checkArgFunc(arg, match[2])) { - options.dumpLineNumbers = match[2]; - } - break; - case 'source-map': - if (!match[2]) { - options.sourceMap = true; - } else { - options.sourceMap = match[2]; - } - break; - case 'source-map-rootpath': - if (checkArgFunc(arg, match[2])) { - options.sourceMapRootpath = match[2]; - } - break; - case 'source-map-basepath': - if (checkArgFunc(arg, match[2])) { - options.sourceMapBasepath = match[2]; - } - break; - case 'source-map-map-inline': - sourceMapFileInline = true; - options.sourceMap = true; - break; - case 'source-map-less-inline': - options.outputSourceFiles = true; - break; - case 'source-map-url': - if (checkArgFunc(arg, match[2])) { - options.sourceMapURL = match[2]; - } - break; - case 'source-map-output-map-file': - if (checkArgFunc(arg, match[2])) { - options.writeSourceMap = function(sourceMapContent) { - writeFile(match[2], sourceMapContent); - }; - } - break; - case 'rp': - case 'rootpath': - if (checkArgFunc(arg, match[2])) { - options.rootpath = match[2].replace(/\\/g, '/'); - } - break; - case "ru": - case "relative-urls": - options.relativeUrls = true; - break; - case "sm": - case "strict-math": - if (checkArgFunc(arg, match[2])) { - options.strictMath = checkBooleanArg(match[2]); - } - break; - case "su": - case "strict-units": - if (checkArgFunc(arg, match[2])) { - options.strictUnits = checkBooleanArg(match[2]); - } - break; - default: - console.log('invalid option ' + arg); - continueProcessing = false; - } - }); - - if (!continueProcessing) { - return; - } - - var name = args[0]; - if (name && name != '-') { -// name = path.resolve(process.cwd(), name); - } - var output = args[1]; - var outputbase = args[1]; - if (output) { - options.sourceMapOutputFilename = output; -// output = path.resolve(process.cwd(), output); - if (warningMessages) { - console.log(warningMessages); - } - } - -// options.sourceMapBasepath = process.cwd(); -// options.sourceMapBasepath = ''; - - if (options.sourceMap === true) { - console.log("output: " + output); - if (!output && !sourceMapFileInline) { - console.log("the sourcemap option only has an optional filename if the css filename is given"); - return; - } - options.sourceMapFullFilename = options.sourceMapOutputFilename + ".map"; - options.sourceMap = less.modules.path.basename(options.sourceMapFullFilename); - } else if (options.sourceMap) { - options.sourceMapOutputFilename = options.sourceMap; - } - - - if (!name) { - console.log("lessc: no inout files"); - console.log(""); - // TODO -// require('../lib/less/lessc_helper').printUsage(); - currentErrorcode = 1; - return; - } - -// var ensureDirectory = function (filepath) { -// var dir = path.dirname(filepath), -// cmd, -// existsSync = fs.existsSync || path.existsSync; -// if (!existsSync(dir)) { -// if (mkdirp === undefined) { -// try {mkdirp = require('mkdirp');} -// catch(e) { mkdirp = null; } -// } -// cmd = mkdirp && mkdirp.sync || fs.mkdirSync; -// cmd(dir); -// } -// }; - - if (options.depends) { - if (!outputbase) { - console.log("option --depends requires an output path to be specified"); - return; - } - console.log(outputbase + ": "); - } - - if (!name) { - console.log('No files present in the fileset'); - quit(1); - } - - var input = null; - try { - input = readFile(name, 'utf-8'); - - } catch (e) { - console.log('lesscss: couldn\'t open file ' + name); - quit(1); - } - - options.filename = name; - var result; - try { - var parser = new less.Parser(options); - parser.parse(input, function (e, root) { - if (e) { - writeError(e, options); - quit(1); - } else { - result = root.toCSS(options); - if (output) { - writeFile(output, result); - console.log("Written to " + output); - } else { - 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zRQ@2G=6EwR z{}K9otBE=p>O1^LaT^>JMf%m3JrF8AC^`rzhyQtUycwI0)u0Miy8gE)NuSK% zm&FgF>CE4VetTX2sk?!nT>n6x2W?pXWgY$b92>k4;0K03s7CYtiRypMrQnBPKVTIL z{t5Q`fbkDUV&DY;H+2uJK5$#! z5B!#je}VtsEqmbg1#Y1DK_p-EpM~LnGgrt \(.*\)$'` - if expr "$link" : '/.*' > /dev/null; then - PRG="$link" - else - PRG=`dirname "$PRG"`"/$link" - fi -done -SAVED="`pwd`" -cd "`dirname \"$PRG\"`/" >&- -APP_HOME="`pwd -P`" -cd "$SAVED" >&- - -CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar - -# Determine the Java command to use to start the JVM. -if [ -n "$JAVA_HOME" ] ; then - if [ -x "$JAVA_HOME/jre/sh/java" ] ; then - # IBM's JDK on AIX uses strange locations for the executables - JAVACMD="$JAVA_HOME/jre/sh/java" - else - JAVACMD="$JAVA_HOME/bin/java" - fi - if [ ! -x "$JAVACMD" ] ; then - die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME - -Please set the JAVA_HOME variable in your environment to match the -location of your Java installation." - fi -else - JAVACMD="java" - which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. - -Please set the JAVA_HOME variable in your environment to match the -location of your Java installation." -fi - -# Increase the maximum file descriptors if we can. -if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then - MAX_FD_LIMIT=`ulimit -H -n` - if [ $? -eq 0 ] ; then - if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then - MAX_FD="$MAX_FD_LIMIT" - fi - ulimit -n $MAX_FD - if [ $? -ne 0 ] ; then - warn "Could not set maximum file descriptor limit: $MAX_FD" - fi - else - warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" - fi -fi - -# For Darwin, add options to specify how the application appears in the dock -if $darwin; then - GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" -fi - -# For Cygwin, switch paths to Windows format before running java -if $cygwin ; then - APP_HOME=`cygpath --path --mixed "$APP_HOME"` - CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` - - # We build the pattern for arguments to be converted via cygpath - ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` - SEP="" - for dir in $ROOTDIRSRAW ; do - ROOTDIRS="$ROOTDIRS$SEP$dir" - SEP="|" - done - OURCYGPATTERN="(^($ROOTDIRS))" - # Add a user-defined pattern to the cygpath arguments - if [ "$GRADLE_CYGPATTERN" != "" ] ; then - OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" - fi - # Now convert the arguments - kludge to limit ourselves to /bin/sh - i=0 - for arg in "$@" ; do - CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` - CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option - - if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition - eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` - else - eval `echo args$i`="\"$arg\"" - fi - i=$((i+1)) - done - case $i in - (0) set -- ;; - (1) set -- "$args0" ;; - (2) set -- "$args0" "$args1" ;; - (3) set -- "$args0" "$args1" "$args2" ;; - (4) set -- "$args0" "$args1" "$args2" "$args3" ;; - (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; - (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; - (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; - (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; - (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; - esac -fi - -# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules -function splitJvmOpts() { - JVM_OPTS=("$@") -} -eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS -JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME" - -exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@" diff --git a/awx/ui/static/lib/less.js/gradlew.bat b/awx/ui/static/lib/less.js/gradlew.bat deleted file mode 100644 index aec99730b4..0000000000 --- a/awx/ui/static/lib/less.js/gradlew.bat +++ /dev/null @@ -1,90 +0,0 @@ -@if "%DEBUG%" == "" @echo off -@rem ########################################################################## -@rem -@rem Gradle startup script for Windows -@rem -@rem ########################################################################## - -@rem Set local scope for the variables with windows NT shell -if "%OS%"=="Windows_NT" setlocal - -@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. -set DEFAULT_JVM_OPTS= - -set DIRNAME=%~dp0 -if "%DIRNAME%" == "" set DIRNAME=. -set APP_BASE_NAME=%~n0 -set APP_HOME=%DIRNAME% - -@rem Find java.exe -if defined JAVA_HOME goto findJavaFromJavaHome - -set JAVA_EXE=java.exe -%JAVA_EXE% -version >NUL 2>&1 -if "%ERRORLEVEL%" == "0" goto init - -echo. -echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. -echo. -echo Please set the JAVA_HOME variable in your environment to match the -echo location of your Java installation. - -goto fail - -:findJavaFromJavaHome -set JAVA_HOME=%JAVA_HOME:"=% -set JAVA_EXE=%JAVA_HOME%/bin/java.exe - -if exist "%JAVA_EXE%" goto init - -echo. -echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% -echo. -echo Please set the JAVA_HOME variable in your environment to match the -echo location of your Java installation. - -goto fail - -:init -@rem Get command-line arguments, handling Windowz variants - -if not "%OS%" == "Windows_NT" goto win9xME_args -if "%@eval[2+2]" == "4" goto 4NT_args - -:win9xME_args -@rem Slurp the command line arguments. -set CMD_LINE_ARGS= -set _SKIP=2 - -:win9xME_args_slurp -if "x%~1" == "x" goto execute - -set CMD_LINE_ARGS=%* -goto execute - -:4NT_args -@rem Get arguments from the 4NT Shell from JP Software -set CMD_LINE_ARGS=%$ - -:execute -@rem Setup the command line - -set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar - -@rem Execute Gradle -"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% - -:end -@rem End local scope for the variables with windows NT shell -if "%ERRORLEVEL%"=="0" goto mainEnd - -:fail -rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of -rem the _cmd.exe /c_ return code! -if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 -exit /b 1 - -:mainEnd -if "%OS%"=="Windows_NT" endlocal - -:omega diff --git a/awx/ui/static/lib/less/.bower.json b/awx/ui/static/lib/less/.bower.json deleted file mode 100644 index 90bb2ae4b0..0000000000 --- a/awx/ui/static/lib/less/.bower.json +++ /dev/null @@ -1,29 +0,0 @@ -{ - "name": "less", - "version": "1.7.4", - "main": "./dist/less-1.7.4.js", - "ignore": [ - "**/.*", - "benchmark", - "bin", - "build", - "lib", - "test", - "*.md", - "LICENSE", - "Gruntfile.js", - "package.json", - "bower.json" - ], - "homepage": "https://github.com/less/less", - "_release": "1.7.4", - "_resolution": { - "type": "version", - "tag": "v1.7.4", - "commit": "3ebab44915ac84b3382f54e8a95bdcc72edd7c1d" - }, - "_source": "git://github.com/less/less.git", - "_target": "~1.7.4", - "_originalSource": "less", - "_direct": true -} \ No newline at end of file diff --git a/awx/ui/static/lib/less/build.gradle b/awx/ui/static/lib/less/build.gradle deleted file mode 100644 index 7042b929a4..0000000000 --- a/awx/ui/static/lib/less/build.gradle +++ /dev/null @@ -1,347 +0,0 @@ -import groovy.io.FileType -import org.apache.tools.ant.taskdefs.condition.Os -import org.gradle.api.tasks.Exec - -buildscript { - repositories { - mavenCentral() - jcenter() - } - dependencies { - classpath 'com.eriwen:gradle-js-plugin:1.8.0' - classpath 'com.moowork.gradle:gradle-grunt-plugin:0.2' - } -} - -apply plugin: 'js' -apply plugin: 'grunt' - -repositories { - mavenCentral() -} - -configurations { - rhino -} - -dependencies { - rhino 'org.mozilla:rhino:1.7R4' -} - -project.ext { - packageProps = new groovy.json.JsonSlurper().parseText(new File("package.json").toURL().text) - failures = 0; - rhinoTestSrc = "out/rhino-test-${packageProps.version}.js" - testSrc = 'test/less' - testOut = 'out/test' -} - -task runGruntRhino(type: GruntTask) { - gruntArgs = "rhino" -} - -combineJs { - dependsOn runGruntRhino - source = ["dist/less-rhino-${packageProps.version}.js", "test/rhino/test-header.js","dist/lessc-rhino-${packageProps.version}.js"] - dest = file(rhinoTestSrc) -} - -task testRhino(type: AllRhinoTests) { -// dependsOn 'testRhinoBase' - dependsOn 'testRhinoBase', 'testRhinoErrors', 'testRhinoLegacy', 'testRhinoStaticUrls', 'testRhinoCompression', 'testRhinoDebugAll', 'testRhinoDebugComments', 'testRhinoDebugMediaquery', 'testRhinoNoJsError', 'testRhinoSourceMap' -} - -task testRhinoBase(type: RhinoTest) { - options = [ '--strict-math=true', '--relative-urls' ] -} - -task testRhinoDebugAll(type: DebugRhinoTest) { - options = [ '--strict-math=true', '--line-numbers=all' ] - testDir = 'debug' + fs - suffix = "-all" -} - -task testRhinoDebugComments(type: DebugRhinoTest) { - options = [ '--strict-math=true', '--line-numbers=comments' ] - testDir = 'debug' + fs - suffix = "-comments" -} - -task testRhinoDebugMediaquery(type: DebugRhinoTest) { - options = [ '--strict-math=true', '--line-numbers=mediaquery' ] - testDir = 'debug' + fs - suffix = "-mediaquery" -} - -task testRhinoErrors(type: RhinoTest) { - options = [ '--strict-math=true', '--strict-units=true' ] - testDir = 'errors/' - expectErrors = true -} - -task testRhinoChyby(type: RhinoTest) { - options = [ '--strict-math=true', '--strict-units=true' ] - testDir = 'chyby/' - // expectErrors = true -} - -task testRhinoNoJsError(type: RhinoTest) { - options = [ '--strict-math=true', '--strict-units=true', '--no-js' ] - testDir = 'no-js-errors/' - expectErrors = true -} - -task testRhinoLegacy(type: RhinoTest) { - testDir = 'legacy/' -} - -task testRhinoStaticUrls(type: RhinoTest) { - options = [ '--strict-math=true', '--rootpath=folder (1)/' ] - testDir = 'static-urls/' -} - -task testRhinoCompression(type: RhinoTest) { - options = [ '--compress=true' ] - testDir = 'compression/' -} - -task testRhinoSourceMap(type: SourceMapRhinoTest) { - options = [ '--strict-math=true', '--strict-units=true'] - testDir = 'sourcemaps/' -} - -task setupTest { - dependsOn combineJs - doLast { - file(testOut).deleteDir() - } -} - -task clean << { - file(rhinoTestSrc).delete() - file(testOut).deleteDir() -} - -class SourceMapRhinoTest extends RhinoTest { - - // helper to get the output map file - def getOutputMap(lessFile) { - def outFile = project.file(lessFile.path.replace('test/less', project.testOut).replace('.less', '.css')) - return project.file(outFile.path + ".map"); - } - - // callback to add SourceMap options to the options list - def postProcessOptions(options, lessFile) { - def outFile = getOutputMap(lessFile) - project.file(outFile.parent).mkdirs() - options << "--source-map=${testDir}${lessFile.name.replace('.less','.css')}" - options << "--source-map-basepath=${lessRootDir}" - options << "--source-map-rootpath=testweb/" - options << "--source-map-output-map-file=${outFile}" - - options - } - - // Callback to validate output - def handleResult(exec, out, lessFile) { - def actualFile = getOutputMap(lessFile) - def expectedFile = project.file(projectDir + fs + "test" + fs + testDir + fs + lessFile.name.replace(".less", ".json")) - assert actualFile.text == expectedFile.text - } - -} - -class DebugRhinoTest extends RhinoTest { - - def escapeIt(it) { - return it.replaceAll("\\\\", "\\\\\\\\").replaceAll("/", "\\\\/").replaceAll(":", "\\\\:").replaceAll("\\.", "\\\\."); - } - - def globalReplacements(input, directory) { - def pDirectory = toPlatformFs(directory) - def p = lessRootDir + fs + pDirectory - def pathimport = p + toPlatformFs("import/") - def pathesc = escapeIt(p) - def pathimportesc = escapeIt(pathimport) - - def result = input.replace("{path}", p).replace("{pathesc}", pathesc).replace("{pathimport}", pathimport) - return result.replace("{pathimportesc}", pathimportesc).replace("\r\n", "\n") - } -} - -class RhinoTest extends DefaultTask { - - RhinoTest() { - dependsOn 'setupTest' - } - - def suffix = "" - def testDir = '' - def options = [] - def expectErrors = false - def fs = File.separator; - def projectDir = toUpperCaseDriveLetter(System.getProperty("user.dir")); - def lessRootDir = projectDir + fs + "test" + fs + "less" - - def toUpperCaseDriveLetter(path) { - if (path.charAt(1)==':' && path.charAt(2)=='\\') { - return path.substring(0,1).toUpperCase() + path.substring(1); - } - return path; - } - - def toPlatformFs(path) { - return path.replace('\\', fs).replace('/', fs); - } - - def expectedCssPath(lessFilePath) { - lessFilePath.replace('.less', "${suffix}.css").replace("${fs}less${fs}", "${fs}css${fs}"); - } - - def globalReplacements(input, directory) { - return input; - } - - def stylize(str, style) { - def styles = [ - reset : [0, 0], - bold : [1, 22], - inverse : [7, 27], - underline : [4, 24], - yellow : [33, 39], - green : [32, 39], - red : [31, 39], - grey : [90, 39] - ]; - return '\033[' + styles[style][0] + 'm' + str + - '\033[' + styles[style][1] + 'm'; - } - - // Callback for subclasses to make any changes to the options - def postProcessOptions(options, lessFile) { - options - } - - // Callback to validate output - def handleResult(exec, out, lessFile) { - def actual = out.toString().trim() - def actualResult = project.file(lessFile.path.replace('test/less', project.testOut).replace('.less', '.css')) - project.file(actualResult.parent).mkdirs() - actualResult << actual - def expected - if (expectErrors) { - assert exec.exitValue != 0 - expected = project.file(lessFile.path.replace('.less', '.txt')).text.trim(). - replace('{path}', lessFile.parent + '/'). - replace('{pathhref}', ''). - replace('{404status}', '') - } else { - assert exec.exitValue == 0 - def expectedFile = expectedCssPath(lessFile.path) - expected = project.file(expectedFile).text.trim() - expected = globalReplacements(expected, testDir) - } - actual=actual.trim() - actual = actual.replace('\r\n', '\n') - expected = expected.replace('\r\n', '\n') - actual = actual.replace("/","\\") - expected = expected.replace("/","\\") -// println "* actual *" -// println actual -// new File("actual.txt").write(actual) -// println "* expected *" -// println expected -// new File("expected.txt").write(expected) - assert actual == expected - actualResult.delete() - - } - - @TaskAction - def runTest() { - int testSuccesses = 0, testFailures = 0, testErrors = 0 - project.file('test/less/' + testDir).eachFileMatch(FileType.FILES, ~/.*\.less/) { lessFile -> - println "lessfile: $lessFile" - if (!project.hasProperty('test') || lessFile.name.startsWith(project.test)) { - def out = new java.io.ByteArrayOutputStream() - def processedOptions = postProcessOptions([project.rhinoTestSrc, lessFile] + options, lessFile) - def execOptions = { - main = 'org.mozilla.javascript.tools.shell.Main' -// main = 'org.mozilla.javascript.tools.debugger.Main' - classpath = project.configurations.rhino - args = processedOptions - standardOutput = out - ignoreExitValue = true - } - println "rhinoTestSrc: ${project.rhinoTestSrc}" - try { - def exec = project.javaexec(execOptions) - handleResult(exec, out, lessFile) - testSuccesses++ - println stylize(' ok', 'green') - } - catch (ex) { - println ex - println() - testErrors++; - } - catch (AssertionError ae) { - println stylize(' failed', 'red') - println ae - testFailures++ - } - } else { - println stylize(' skipped', 'yellow') - } - } - println stylize(testSuccesses + ' ok', 'green') - println stylize(testFailures + ' assertion failed', testFailures == 0 ? 'green' : 'red') - println stylize(testErrors + ' errors', testErrors == 0 ? 'green' : 'red') - if (testFailures != 0 || testErrors != 0) { - project.failures++; - } - } -} - -class AllRhinoTests extends DefaultTask { - - AllRhinoTests() { - } - - @TaskAction - def runTest() { - println stylize(project.failures + ' test suites failed', project.failures == 0 ? 'green' : 'red') - } - - def stylize(str, style) { - def styles = [ - reset : [0, 0], - bold : [1, 22], - inverse : [7, 27], - underline : [4, 24], - yellow : [33, 39], - green : [32, 39], - red : [31, 39], - grey : [90, 39] - ]; - return '\033[' + styles[style][0] + 'm' + str + - '\033[' + styles[style][1] + 'm'; - } -} - -class GruntTask extends Exec { - private String gruntExecutable = Os.isFamily(Os.FAMILY_WINDOWS) ? "grunt.cmd" : "grunt" - private String switches = "--no-color" - - String gruntArgs = "" - - public GruntTask() { - super() - this.setExecutable(gruntExecutable) - } - - public void setGruntArgs(String gruntArgs) { - this.args = "$switches $gruntArgs".trim().split(" ") as List - } -} - diff --git a/awx/ui/static/lib/less/dist/less-1.1.0.js b/awx/ui/static/lib/less/dist/less-1.1.0.js deleted file mode 100644 index 487c06acd2..0000000000 --- a/awx/ui/static/lib/less/dist/less-1.1.0.js +++ /dev/null @@ -1,2695 +0,0 @@ -// -// LESS - Leaner CSS v1.1.0 -// http://lesscss.org -// -// Copyright (c) 2009-2011, Alexis Sellier -// Licensed under the Apache 2.0 License. -// -(function (window, undefined) { -// -// Stub out `require` in the browser -// -function require(arg) { - return window.less[arg.split('/')[1]]; -}; - - -// ecma-5.js -// -// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License -// -- tlrobinson Tom Robinson -// dantman Daniel Friesen - -// -// Array -// -if (!Array.isArray) { - Array.isArray = function(obj) { - return Object.prototype.toString.call(obj) === "[object Array]" || - (obj instanceof Array); - }; -} -if (!Array.prototype.forEach) { - Array.prototype.forEach = function(block, thisObject) { - var len = this.length >>> 0; - for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree; - -if (typeof(window) === 'undefined') { - less = exports, - tree = require('less/tree'); -} else { - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - mime: env && env.mime, // MIME type of .less files - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (root) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - that.files[path] = root; // Store the root - - callback(root); - - if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, c, index, endIndex, k, mem; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - mem = i += length; - endIndex = i + chunks[j].length - length; - - while (i < endIndex) { - c = input.charCodeAt(i); - if (! (c === 32 || c === 10 || c === 9)) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - chunks = []; - input = str.replace(/\r\n/g, '\n'); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /[^"'`\{\}\/\(\)]+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - level = 0, - match, - chunk = chunks[0], - inParam, - inString; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = i; - - if (!inString && !inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - if (c === '{' && !inString && !inParam) { level ++; - chunk.push(c); - } else if (c === '}' && !inString && !inParam) { level --; - chunk.push(c); - chunks[++j] = chunk = []; - } else if (c === '(' && !inString && !inParam) { - chunk.push(c); - inParam = true; - } else if (c === ')' && !inString && inParam) { - chunk.push(c); - inParam = false; - } else { - if (c === '"' || c === "'" || c === '`') { - if (! inString) { - inString = c; - } else { - inString = inString === c ? false : inString; - } - } - chunk.push(c); - } - } - if (level > 0) { - throw { - type: 'Syntax', - message: "Missing closing `}`", - filename: env.filename - }; - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = []; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false }); - } catch (e) { - lines = input.split('\n'); - line = getLine(e.index); - - for (var n = e.index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - throw { - type: e.type, - message: e.message, - filename: env.filename, - index: e.index, - line: typeof(line) === 'number' ? line + 1 : null, - callLine: e.call && (getLine(e.call) + 1), - callExtract: lines[getLine(e.call)], - stack: e.stack, - column: column, - extract: [ - lines[line - 1], - lines[line], - lines[line + 1] - ] - }; - } - if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - - function getLine(index) { - return index ? (input.slice(0, index).match(/\n/g) || "").length : null; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - name: "ParseError", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function () { callback(error, root) }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - if (k = $(/^[A-Za-z-]+/)) { return new(tree.Keyword)(k) } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, args; - - if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return; - - name = name[1].toLowerCase(); - - if (name === 'url') { return null } - else { i += name.length } - - if (name === 'alpha') { return $(this.alpha) } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; - if (! $(')')) throw new(Error)("missing closing ) for url()"); - - return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - dataURI: function () { - var obj; - - if ($(/^data:/)) { - obj = {}; - obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; - obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; - obj.base64 = $(/^;\s*base64/) || ''; - obj.data = $(/^,\s*[^)]+/); - - if (obj.data) { return obj } - } - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i); - - if (s !== '.' && s !== '#') { return } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(c, e)); - c = $('>'); - } - $('(') && (args = $(this.entities.arguments)) && $(')'); - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index); - } - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value; - - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { - name = match[1]; - - while (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - if (value = $(this.expression)) { - params.push({ name: param.name, value: value }); - } else { - throw new(Error)("Expected value"); - } - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - if (! $(',')) { break } - } - if (! $(')')) throw new(Error)("Expected )"); - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - if (! $(')')) throw new(Error)("missing closing ) for alpha()"); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c; - - c = $(this.combinator); - e = $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || $('*') || $(this.attribute) || $(/^\([^)@]+\)/); - - if (e) { return new(tree.Element)(c, e) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '&' || c === '+' || c === '~') { - i++; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(c); - } else if (c === ':' && input.charAt(i + 1) === ':') { - i += 2; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)('::'); - } else if (input.charAt(i - 1) === ' ') { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match; - save(); - - if (match = /^([.#: \w-]+)[\s\n]*\{/.exec(chunks[j])) { - i += match[0].length - 1; - selectors = [new(tree.Selector)([new(tree.Element)(null, match[1])])]; - } else { - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - } - - if (selectors.length > 0 && (rules = $(this.block))) { - return new(tree.Ruleset)(selectors, rules); - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path; - if ($(/^@import\s+/) && - (path = $(this.entities.quoted) || $(this.entities.url)) && - $(';')) { - return new(tree.Import)(path, imports); - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, types; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import'])) { - return value; - } else if (name = $(/^@media|@page|@-[-a-z]+/)) { - types = ($(/^[^{]+/) || '').trim(); - if (rules = $(this.block)) { - return new(tree.Directive)(name + " " + types, rules); - } - } else if (name = $(/^@[-a-z]+/)) { - if (name === '@font-face') { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while ((op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (typeof(window) !== 'undefined') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (path.charAt(0) !== '/' && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math.round(number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math.round(n); - } else { - throw { - error: "RuntimeError", - message: "math functions take numbers as parameters" - }; - } - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('less/tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args) { - this.name = name; - this.args = args; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - return tree.functions[this.name].apply(tree.functions, args); - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('less/tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else if (rgb.length == 8) { - this.alpha = parseInt(rgb.substring(0,2), 16) / 255.0; - this.rgb = rgb.substr(2).match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - } -}; - - -})(require('less/tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - env.frames.unshift(this); - this.ruleset = this.ruleset && this.ruleset.eval(env); - env.frames.shift(); - return this; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Element = function (combinator, value) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - this.value = value.trim(); -}; -tree.Element.prototype.toCSS = function (env) { - return this.combinator.toCSS(env || {}) + this.value; -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - '&' : '', - ':' : ' :', - '::': '::', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('less/tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else { - return this.value[0].eval(env); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(' '); - } -}; - -})(require('less/tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports) { - var that = this; - - this._path = path; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (root) { - if (! root) { - throw new(Error)("Error parsing " + that.path); - } - that.root = root; - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function () { - if (this.css) { - return "@import " + this._path.toCSS() + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return ruleset.rules; - } - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - toCSS: function () { - if (this.escaped) { - return this.evaluated; - } else { - return JSON.stringify(this.evaluated); - } - }, - eval: function (env) { - var result, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return new(tree.Variable)('@' + name).eval(env).value; - }); - - expression = new(Function)('return (' + expression + ')'); - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - this.evaluated = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - return this; - } -}; - -})(require('less/tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value } -}; - -})(require('less/tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(this.arguments, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments).rules); - match = true; - } catch (e) { - throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; - } - } - } - if (match) { - return rules; - } else { - throw { message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index }; - } - } - } - throw { message: this.selector.toCSS().trim() + " is undefined", - index: this.index }; - } -}; - -tree.mixin.Definition = function (name, params, rules) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - eval: function (env, args) { - var frame = new(tree.Ruleset)(null, []), context, _arguments = []; - - for (var i = 0, val; i < this.params.length; i++) { - if (this.params[i].name) { - if (val = (args && args[i]) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); - } else { - throw { message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push(args[i] || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments))); - - return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (argsLength < this.required) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - this.value = this.value.replace(/@\{([\w-]+)\}/g, function (_, name) { - return new(tree.Variable)('@' + name).eval(env).value; - }).replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, this.index, true).eval(env).toCSS(); - }); - return this; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + ";"; - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); - - ruleset.root = this.root; - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > 1) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - rule; - - if (! this.root) { - if (context.length === 0) { - paths = this.selectors.map(function (s) { return [s] }); - } else { - for (var s = 0; s < this.selectors.length; s++) { - for (var c = 0; c < context.length; c++) { - paths.push(context[c].concat([this.selectors[s]])); - } - } - } - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); - css.push(selector, - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - } -}; -})(require('less/tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; - if (this.elements[0].combinator.value === "") { - this.elements[0].combinator.value = ' '; - } -}; -tree.Selector.prototype.match = function (other) { - if (this.elements[0].value === other.elements[0].value) { - return true; - } else { - return false; - } -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - return this._css = this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); -}; - -})(require('less/tree')); -(function (tree) { - -tree.URL = function (val, paths) { - if (val.data) { - this.attrs = val; - } else { - // Add the base path if the URL is relative and we are in the browser - if (!/^(?:https?:\/|file:\/|data:\/)?\//.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') { - val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - this.value = val; - this.paths = paths; - } -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data - : this.value.toCSS()) + ")"; - }, - eval: function (ctx) { - return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Variable = function (name, index) { this.name = name, this.index = index }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { message: "variable " + name + " is undefined", - index: this.index }; - } - } -}; - -})(require('less/tree')); -require('less/tree').find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -// -// browser.js - client-side engine -// - -var isFileProtocol = (location.protocol === 'file:' || - location.protocol === 'chrome:' || - location.protocol === 'chrome-extension:' || - location.protocol === 'resource:'); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 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sheet.href.replace(/\?.*$/, '') : ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If the stylesheet doesn't exist, create a new node - if ((css = document.getElementById(id)) === null) { - css = document.createElement('style'); - css.type = 'text/css'; - css.media = sheet.media || 'screen'; - css.id = id; - document.getElementsByTagName('head')[0].appendChild(css); - } - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - (function (node) { - if (css.childNodes.length > 0) { - if (css.firstChild.nodeValue !== node.nodeValue) { - css.replaceChild(node, css.firstChild); - } - } else { - css.appendChild(node); - } - })(document.createTextNode(styles)); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? 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This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - mime: env && env.mime, // MIME type of .less files - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (root) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - that.files[path] = root; // Store the root - - callback(root); - - if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, c, index, endIndex, k, mem; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - mem = i += length; - endIndex = i + chunks[j].length - length; - - while (i < endIndex) { - c = input.charCodeAt(i); - if (! (c === 32 || c === 10 || c === 9)) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - chunks = []; - input = str.replace(/\r\n/g, '\n'); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /[^"'`\{\}\/\(\)]+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - level = 0, - match, - chunk = chunks[0], - inParam, - inString; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = i; - - if (!inString && !inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - if (c === '{' && !inString && !inParam) { level ++; - chunk.push(c); - } else if (c === '}' && !inString && !inParam) { level --; - chunk.push(c); - chunks[++j] = chunk = []; - } else if (c === '(' && !inString && !inParam) { - chunk.push(c); - inParam = true; - } else if (c === ')' && !inString && inParam) { - chunk.push(c); - inParam = false; - } else { - if (c === '"' || c === "'" || c === '`') { - if (! inString) { - inString = c; - } else { - inString = inString === c ? false : inString; - } - } - chunk.push(c); - } - } - if (level > 0) { - throw { - type: 'Syntax', - message: "Missing closing `}`", - filename: env.filename - }; - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = []; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false }); - } catch (e) { - lines = input.split('\n'); - line = getLine(e.index); - - for (var n = e.index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - throw { - type: e.type, - message: e.message, - filename: env.filename, - index: e.index, - line: typeof(line) === 'number' ? line + 1 : null, - callLine: e.call && (getLine(e.call) + 1), - callExtract: lines[getLine(e.call)], - stack: e.stack, - column: column, - extract: [ - lines[line - 1], - lines[line], - lines[line + 1] - ] - }; - } - if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - - function getLine(index) { - return index ? (input.slice(0, index).match(/\n/g) || "").length : null; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - name: "ParseError", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function () { callback(error, root) }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - if (k = $(/^[A-Za-z-]+/)) { return new(tree.Keyword)(k) } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, args; - - if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return; - - name = name[1].toLowerCase(); - - if (name === 'url') { return null } - else { i += name.length } - - if (name === 'alpha') { return $(this.alpha) } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; - if (! $(')')) throw new(Error)("missing closing ) for url()"); - - return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - dataURI: function () { - var obj; - - if ($(/^data:/)) { - obj = {}; - obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; - obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; - obj.base64 = $(/^;\s*base64/) || ''; - obj.data = $(/^,\s*[^)]+/); - - if (obj.data) { return obj } - } - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i); - - if (s !== '.' && s !== '#') { return } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(c, e)); - c = $('>'); - } - $('(') && (args = $(this.entities.arguments)) && $(')'); - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index); - } - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value; - - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { - name = match[1]; - - while (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - if (value = $(this.expression)) { - params.push({ name: param.name, value: value }); - } else { - throw new(Error)("Expected value"); - } - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - if (! $(',')) { break } - } - if (! $(')')) throw new(Error)("Expected )"); - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - if (! $(')')) throw new(Error)("missing closing ) for alpha()"); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c; - - c = $(this.combinator); - e = $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || $('*') || $(this.attribute) || $(/^\([^)@]+\)/); - - if (e) { return new(tree.Element)(c, e) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '&' || c === '+' || c === '~') { - i++; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(c); - } else if (c === ':' && input.charAt(i + 1) === ':') { - i += 2; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)('::'); - } else if (input.charAt(i - 1) === ' ') { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match; - save(); - - if (match = /^([.#: \w-]+)[\s\n]*\{/.exec(chunks[j])) { - i += match[0].length - 1; - selectors = [new(tree.Selector)([new(tree.Element)(null, match[1])])]; - } else { - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - } - - if (selectors.length > 0 && (rules = $(this.block))) { - return new(tree.Ruleset)(selectors, rules); - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path; - if ($(/^@import\s+/) && - (path = $(this.entities.quoted) || $(this.entities.url)) && - $(';')) { - return new(tree.Import)(path, imports); - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, types; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import'])) { - return value; - } else if (name = $(/^@media|@page|@-[-a-z]+/)) { - types = ($(/^[^{]+/) || '').trim(); - if (rules = $(this.block)) { - return new(tree.Directive)(name + " " + types, rules); - } - } else if (name = $(/^@[-a-z]+/)) { - if (name === '@font-face') { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while ((op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (typeof(window) !== 'undefined') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (path.charAt(0) !== '/' && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math.round(number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math.round(n); - } else { - throw { - error: "RuntimeError", - message: "math functions take numbers as parameters" - }; - } - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('less/tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args) { - this.name = name; - this.args = args; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - return tree.functions[this.name].apply(tree.functions, args); - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('less/tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else if (rgb.length == 8) { - this.alpha = parseInt(rgb.substring(0,2), 16) / 255.0; - this.rgb = rgb.substr(2).match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - } -}; - - -})(require('less/tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - env.frames.unshift(this); - this.ruleset = this.ruleset && this.ruleset.eval(env); - env.frames.shift(); - return this; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Element = function (combinator, value) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - this.value = value.trim(); -}; -tree.Element.prototype.toCSS = function (env) { - return this.combinator.toCSS(env || {}) + this.value; -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - '&' : '', - ':' : ' :', - '::': '::', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('less/tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(' '); - } -}; - -})(require('less/tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports) { - var that = this; - - this._path = path; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (root) { - if (! root) { - throw new(Error)("Error parsing " + that.path); - } - that.root = root; - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function () { - if (this.css) { - return "@import " + this._path.toCSS() + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return ruleset.rules; - } - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('less/tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value } -}; - -})(require('less/tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(this.arguments, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments).rules); - match = true; - } catch (e) { - throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; - } - } - } - if (match) { - return rules; - } else { - throw { message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index }; - } - } - } - throw { message: this.selector.toCSS().trim() + " is undefined", - index: this.index }; - } -}; - -tree.mixin.Definition = function (name, params, rules) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - eval: function (env, args) { - var frame = new(tree.Ruleset)(null, []), context, _arguments = []; - - for (var i = 0, val; i < this.params.length; i++) { - if (this.params[i].name) { - if (val = (args && args[i]) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); - } else { - throw { message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push(args[i] || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (argsLength < this.required) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - this.value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - return new(tree.Variable)('@' + name, that.index).eval(env).value; - }); - return this; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + ";"; - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); - - ruleset.root = this.root; - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > 1) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - rule; - - if (! this.root) { - if (context.length === 0) { - paths = this.selectors.map(function (s) { return [s] }); - } else { - for (var s = 0; s < this.selectors.length; s++) { - for (var c = 0; c < context.length; c++) { - paths.push(context[c].concat([this.selectors[s]])); - } - } - } - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); - css.push(selector, - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - } -}; -})(require('less/tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; - if (this.elements[0].combinator.value === "") { - this.elements[0].combinator.value = ' '; - } -}; -tree.Selector.prototype.match = function (other) { - if (this.elements[0].value === other.elements[0].value) { - return true; - } else { - return false; - } -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - return this._css = this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); -}; - -})(require('less/tree')); -(function (tree) { - -tree.URL = function (val, paths) { - if (val.data) { - this.attrs = val; - } else { - // Add the base path if the URL is relative and we are in the browser - if (!/^(?:https?:\/|file:\/|data:\/)?\//.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') { - val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - this.value = val; - this.paths = paths; - } -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data - : this.value.toCSS()) + ")"; - }, - eval: function (ctx) { - return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Variable = function (name, index) { this.name = name, this.index = index }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { message: "variable " + name + " is undefined", - index: this.index }; - } - } -}; - -})(require('less/tree')); -require('less/tree').find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -require('less/tree').jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; -// -// browser.js - client-side engine -// - -var isFileProtocol = (location.protocol === 'file:' || - location.protocol === 'chrome:' || - location.protocol === 'chrome-extension:' || - location.protocol === 'resource:'); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -// -// Watch mode -// -less.watch = function () { return this.watchMode = true }; -less.unwatch = function () { return this.watchMode = false }; - -if (less.env === 'development') { - less.optimization = 0; - - if (/!watch/.test(location.hash)) { - less.watch(); - } - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (root, sheet, env) { - if (root) { - createCSS(root.toCSS(), sheet, env.lastModified); - } - }); - } - }, less.poll); -} else { - less.optimization = 3; -} - -var cache; - -try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; -} catch (_) { - cache = null; -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (root, sheet, env) { - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) { - styles[i].type = 'text/css'; - styles[i].innerHTML = tree.toCSS(); - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - var url = window.location.href.replace(/[#?].*$/, ''); - var href = sheet.href.replace(/\?.*$/, ''); - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - - // Stylesheets in IE don't always return the full path - if (! /^(https?|file):/.test(href)) { - if (href.charAt(0) == "/") { - href = window.location.protocol + "//" + window.location.host + href; - } else { - href = url.slice(0, url.lastIndexOf('/') + 1) + href; - } - } - - xhr(sheet.href, sheet.type, function (data, lastModified) { - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, sheet, { local: true, remaining: remaining }); - } else { - // Use remote copy (re-parse) - try { - new(less.Parser)({ - optimization: less.optimization, - paths: [href.replace(/[\w\.-]+$/, '')], - mime: sheet.type - }).parse(data, function (e, root) { - if (e) { return error(e, href) } - try { - callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining }); - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } catch (e) { - error(e, href); - } - }); - } catch (e) { - error(e, href); - } - } - }, function (status, url) { - throw new(Error)("Couldn't load " + url + " (" + status + ")"); - }); -} - -function extractId(href) { - return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\?.*$/, '' ) // Remove query - .replace(/\.[^\.\/]+$/, '' ) // Remove file extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - var css; - - // Strip the query-string - var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If the stylesheet doesn't exist, create a new node - if ((css = document.getElementById(id)) === null) { - css = document.createElement('style'); - css.type = 'text/css'; - css.media = sheet.media || 'screen'; - css.id = id; - document.getElementsByTagName('head')[0].appendChild(css); - } - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - (function (node) { - if (css.childNodes.length > 0) { - if (css.firstChild.nodeValue !== node.nodeValue) { - css.replaceChild(node, css.firstChild); - } - } else { - css.appendChild(node); - } - })(document.createTextNode(styles)); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? false : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - if (isFileProtocol) { - if (xhr.status === 0) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new(XMLHttpRequest); - } else { - try { - return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX."); - return null; - } - } -} - -function removeNode(node) { - return node && node.parentNode.removeChild(node); -} - -function log(str) { - if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } -} - -function error(e, href) { - var id = 'less-error-message:' + extractId(href); - - var template = ['
      ', - '
    • {0}
      • ', - '
    • {current}
      • ', - '
    • {2}
      • ', - '
    '].join('\n'); - - var elem = document.createElement('div'), timer, content; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.message || 'There is an error in your .less file') + - '

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a.Dimension(b.toHSL().a)},saturate:function(a,c){var e=a.toHSL();e.s+=c.value/100,e.s=d(e.s);return b(e)},desaturate:function(a,c){var e=a.toHSL();e.s-=c.value/100,e.s=d(e.s);return b(e)},lighten:function(a,c){var e=a.toHSL();e.l+=c.value/100,e.l=d(e.l);return b(e)},darken:function(a,c){var e=a.toHSL();e.l-=c.value/100,e.l=d(e.l);return b(e)},fadein:function(a,c){var e=a.toHSL();e.a+=c.value/100,e.a=d(e.a);return b(e)},fadeout:function(a,c){var e=a.toHSL();e.a-=c.value/100,e.a=d(e.a);return b(e)},spin:function(a,c){var d=a.toHSL(),e=(d.h+c.value)%360;d.h=e<0?360+e:e;return b(d)},mix:function(b,c,d){var e=d.value/100,f=e*2-1,g=b.toHSL().a-c.toHSL().a,h=((f*g==-1?f:(f+g)/(1+f*g))+1)/2,i=1-h,j=[b.rgb[0]*h+c.rgb[0]*i,b.rgb[1]*h+c.rgb[1]*i,b.rgb[2]*h+c.rgb[2]*i],k=b.alpha*e+c.alpha*(1-e);return new a.Color(j,k)},greyscale:function(b){return this.desaturate(b,new a.Dimension(100))},e:function(b){return new a.Anonymous(b instanceof a.JavaScript?b.evaluated:b)},escape:function(b){return new a.Anonymous(encodeURI(b.value).replace(/=/g,"%3D").replace(/:/g,"%3A").replace(/#/g,"%23").replace(/;/g,"%3B").replace(/\(/g,"%28").replace(/\)/g,"%29"))},"%":function(b){var c=Array.prototype.slice.call(arguments,1),d=b.value;for(var e=0;e255?255:a<0?0:a).toString(16);return a.length===1?"0"+a:a}).join("")},operate:function(b,c){var d=[];c instanceof a.Color||(c=c.toColor());for(var e=0;e<3;e++)d[e]=a.operate(b,this.rgb[e],c.rgb[e]);return new a.Color(d,this.alpha+c.alpha)},toHSL:function(){var a=this.rgb[0]/255,b=this.rgb[1]/255,c=this.rgb[2]/255,d=this.alpha,e=Math.max(a,b,c),f=Math.min(a,b,c),g,h,i=(e+f)/2,j=e-f;if(e===f)g=h=0;else{h=i>.5?j/(2-e-f):j/(e+f);switch(e){case a:g=(b-c)/j+(b":a.compress?">":" > "}[this.value]}}(c("less/tree")),function(a){a.Expression=function(a){this.value=a},a.Expression.prototype={eval:function(b){return this.value.length>1?new a.Expression(this.value.map(function(a){return 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"+b.trim():b.toCSS(a)}).join("")}}(c("less/tree")),function(b){b.URL=function(b,c){b.data?this.attrs=b:(!/^(?:https?:\/|file:\/|data:\/)?\//.test(b.value)&&c.length>0&&typeof a!="undefined"&&(b.value=c[0]+(b.value.charAt(0)==="/"?b.value.slice(1):b.value)),this.value=b,this.paths=c)},b.URL.prototype={toCSS:function(){return"url("+(this.attrs?"data:"+this.attrs.mime+this.attrs.charset+this.attrs.base64+this.attrs.data:this.value.toCSS())+")"},eval:function(a){return this.attrs?this:new b.URL(this.value.eval(a),this.paths)}}}(c("less/tree")),function(a){a.Value=function(a){this.value=a,this.is="value"},a.Value.prototype={eval:function(b){return this.value.length===1?this.value[0].eval(b):new a.Value(this.value.map(function(a){return a.eval(b)}))},toCSS:function(a){return this.value.map(function(b){return b.toCSS(a)}).join(a.compress?",":", ")}}}(c("less/tree")),function(a){a.Variable=function(a,b){this.name=a,this.index=b},a.Variable.prototype={eval:function(b){var c,d,e=this.name;e.indexOf("@@")==0&&(e="@"+(new a.Variable(e.slice(1))).eval(b).value);if(c=a.find(b.frames,function(a){if(d=a.variable(e))return d.value.eval(b)}))return c;throw{message:"variable "+e+" is undefined",index:this.index}}}}(c("less/tree" -)),c("less/tree").find=function(a,b){for(var c=0,d;c1?"["+a.value.map(function(a){return a.toCSS(!1)}).join(", ")+"]":a.toCSS(!1)};var g=location.protocol==="file:"||location.protocol==="chrome:"||location.protocol==="chrome-extension:"||location.protocol==="resource:";d.env=d.env||(location.hostname=="127.0.0.1"||location.hostname=="0.0.0.0"||location.hostname=="localhost"||location.port.length>0||g?"development":"production"),d.async=!1,d.poll=d.poll||(g?1e3:1500),d.watch=function(){return this.watchMode=!0},d.unwatch=function(){return this.watchMode=!1},d.env==="development"?(d.optimization=0,/!watch/.test(location.hash)&&d.watch(),d.watchTimer=setInterval(function(){d.watchMode&&n(function(a,b,c){a&&q(a.toCSS(),b,c.lastModified)})},d.poll)):d.optimization=3;var h;try{h=typeof a.localStorage=="undefined"?null:a.localStorage}catch(i){h=null}var j=document.getElementsByTagName("link"),k=/^text\/(x-)?less$/;d.sheets=[];for(var l=0;l>> 0; - for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree; - -if (typeof(window) === 'undefined') { - less = exports, - tree = require('less/tree'); -} else { - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - mime: env && env.mime, // MIME type of .less files - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (root) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - that.files[path] = root; // Store the root - - callback(root); - - if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, c, index, endIndex, k, mem; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - mem = i += length; - endIndex = i + chunks[j].length - length; - - while (i < endIndex) { - c = input.charCodeAt(i); - if (! (c === 32 || c === 10 || c === 9)) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - chunks = []; - input = str.replace(/\r\n/g, '\n'); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /[^"'`\{\}\/\(\)]+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - level = 0, - match, - chunk = chunks[0], - inParam, - inString; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = i; - - if (!inString && !inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - if (c === '{' && !inString && !inParam) { level ++; - chunk.push(c); - } else if (c === '}' && !inString && !inParam) { level --; - chunk.push(c); - chunks[++j] = chunk = []; - } else if (c === '(' && !inString && !inParam) { - chunk.push(c); - inParam = true; - } else if (c === ')' && !inString && inParam) { - chunk.push(c); - inParam = false; - } else { - if (c === '"' || c === "'" || c === '`') { - if (! inString) { - inString = c; - } else { - inString = inString === c ? false : inString; - } - } - chunk.push(c); - } - } - if (level > 0) { - throw { - type: 'Syntax', - message: "Missing closing `}`", - filename: env.filename - }; - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = []; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false }); - } catch (e) { - lines = input.split('\n'); - line = getLine(e.index); - - for (var n = e.index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - throw { - type: e.type, - message: e.message, - filename: env.filename, - index: e.index, - line: typeof(line) === 'number' ? line + 1 : null, - callLine: e.call && (getLine(e.call) + 1), - callExtract: lines[getLine(e.call)], - stack: e.stack, - column: column, - extract: [ - lines[line - 1], - lines[line], - lines[line + 1] - ] - }; - } - if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - - function getLine(index) { - return index ? (input.slice(0, index).match(/\n/g) || "").length : null; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - name: "ParseError", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function () { callback(error, root) }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - if (k = $(/^[A-Za-z-]+/)) { return new(tree.Keyword)(k) } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, args; - - if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return; - - name = name[1].toLowerCase(); - - if (name === 'url') { return null } - else { i += name.length } - - if (name === 'alpha') { return $(this.alpha) } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; - if (! $(')')) throw new(Error)("missing closing ) for url()"); - - return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - dataURI: function () { - var obj; - - if ($(/^data:/)) { - obj = {}; - obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; - obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; - obj.base64 = $(/^;\s*base64/) || ''; - obj.data = $(/^,\s*[^)]+/); - - if (obj.data) { return obj } - } - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i); - - if (s !== '.' && s !== '#') { return } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(c, e)); - c = $('>'); - } - $('(') && (args = $(this.entities.arguments)) && $(')'); - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index); - } - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value; - - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { - name = match[1]; - - while (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - if (value = $(this.expression)) { - params.push({ name: param.name, value: value }); - } else { - throw new(Error)("Expected value"); - } - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - if (! $(',')) { break } - } - if (! $(')')) throw new(Error)("Expected )"); - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - if (! $(')')) throw new(Error)("missing closing ) for alpha()"); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c; - - c = $(this.combinator); - e = $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || $('*') || $(this.attribute) || $(/^\([^)@]+\)/); - - if (e) { return new(tree.Element)(c, e) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '&' || c === '+' || c === '~') { - i++; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(c); - } else if (c === ':' && input.charAt(i + 1) === ':') { - i += 2; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)('::'); - } else if (input.charAt(i - 1) === ' ') { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match; - save(); - - if (match = /^([.#: \w-]+)[\s\n]*\{/.exec(chunks[j])) { - i += match[0].length - 1; - selectors = [new(tree.Selector)([new(tree.Element)(null, match[1])])]; - } else { - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - } - - if (selectors.length > 0 && (rules = $(this.block))) { - return new(tree.Ruleset)(selectors, rules); - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path; - if ($(/^@import\s+/) && - (path = $(this.entities.quoted) || $(this.entities.url)) && - $(';')) { - return new(tree.Import)(path, imports); - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, types; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import'])) { - return value; - } else if (name = $(/^@media|@page|@-[-a-z]+/)) { - types = ($(/^[^{]+/) || '').trim(); - if (rules = $(this.block)) { - return new(tree.Directive)(name + " " + types, rules); - } - } else if (name = $(/^@[-a-z]+/)) { - if (name === '@font-face') { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while ((op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (typeof(window) !== 'undefined') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (path.charAt(0) !== '/' && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math.round(number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math.round(n); - } else { - throw { - error: "RuntimeError", - message: "math functions take numbers as parameters" - }; - } - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('less/tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args) { - this.name = name; - this.args = args; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - return tree.functions[this.name].apply(tree.functions, args); - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('less/tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else if (rgb.length == 8) { - this.alpha = parseInt(rgb.substring(0,2), 16) / 255.0; - this.rgb = rgb.substr(2).match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - } -}; - - -})(require('less/tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - env.frames.unshift(this); - this.ruleset = this.ruleset && this.ruleset.eval(env); - env.frames.shift(); - return this; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Element = function (combinator, value) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - this.value = value.trim(); -}; -tree.Element.prototype.toCSS = function (env) { - return this.combinator.toCSS(env || {}) + this.value; -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - '&' : '', - ':' : ' :', - '::': '::', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('less/tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(' '); - } -}; - -})(require('less/tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports) { - var that = this; - - this._path = path; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (root) { - if (! root) { - throw new(Error)("Error parsing " + that.path); - } - that.root = root; - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function () { - if (this.css) { - return "@import " + this._path.toCSS() + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return ruleset.rules; - } - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('less/tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value } -}; - -})(require('less/tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, args, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(args, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments).rules); - match = true; - } catch (e) { - throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; - } - } - } - if (match) { - return rules; - } else { - throw { message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index }; - } - } - } - throw { message: this.selector.toCSS().trim() + " is undefined", - index: this.index }; - } -}; - -tree.mixin.Definition = function (name, params, rules) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - eval: function (env, args) { - var frame = new(tree.Ruleset)(null, []), context, _arguments = []; - - for (var i = 0, val; i < this.params.length; i++) { - if (this.params[i].name) { - if (val = (args && args[i]) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); - } else { - throw { message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push(args[i] || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (argsLength < this.required) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return v.value || v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + ";"; - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); - - ruleset.root = this.root; - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > 1) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - rule; - - if (! this.root) { - if (context.length === 0) { - paths = this.selectors.map(function (s) { return [s] }); - } else { - for (var s = 0; s < this.selectors.length; s++) { - for (var c = 0; c < context.length; c++) { - paths.push(context[c].concat([this.selectors[s]])); - } - } - } - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); - css.push(selector, - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - } -}; -})(require('less/tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; - if (this.elements[0].combinator.value === "") { - this.elements[0].combinator.value = ' '; - } -}; -tree.Selector.prototype.match = function (other) { - if (this.elements[0].value === other.elements[0].value) { - return true; - } else { - return false; - } -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - return this._css = this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); -}; - -})(require('less/tree')); -(function (tree) { - -tree.URL = function (val, paths) { - if (val.data) { - this.attrs = val; - } else { - // Add the base path if the URL is relative and we are in the browser - if (!/^(?:https?:\/|file:\/|data:\/)?\//.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') { - val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - this.value = val; - this.paths = paths; - } -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data - : this.value.toCSS()) + ")"; - }, - eval: function (ctx) { - return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Variable = function (name, index) { this.name = name, this.index = index }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { message: "variable " + name + " is undefined", - index: this.index }; - } - } -}; - -})(require('less/tree')); -require('less/tree').find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -require('less/tree').jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; -// -// browser.js - client-side engine -// - -var isFileProtocol = (location.protocol === 'file:' || - location.protocol === 'chrome:' || - location.protocol === 'chrome-extension:' || - location.protocol === 'resource:'); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -// -// Watch mode -// -less.watch = function () { return this.watchMode = true }; -less.unwatch = function () { return this.watchMode = false }; - -if (less.env === 'development') { - less.optimization = 0; - - if (/!watch/.test(location.hash)) { - less.watch(); - } - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (root, sheet, env) { - if (root) { - createCSS(root.toCSS(), sheet, env.lastModified); - } - }); - } - }, less.poll); -} else { - less.optimization = 3; -} - -var cache; - -try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; -} catch (_) { - cache = null; -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (root, sheet, env) { - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) { - styles[i].type = 'text/css'; - styles[i].innerHTML = tree.toCSS(); - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - var url = window.location.href.replace(/[#?].*$/, ''); - var href = sheet.href.replace(/\?.*$/, ''); - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - - // Stylesheets in IE don't always return the full path - if (! /^(https?|file):/.test(href)) { - if (href.charAt(0) == "/") { - href = window.location.protocol + "//" + window.location.host + href; - } else { - href = url.slice(0, url.lastIndexOf('/') + 1) + href; - } - } - - xhr(sheet.href, sheet.type, function (data, lastModified) { - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, sheet, { local: true, remaining: remaining }); - } else { - // Use remote copy (re-parse) - try { - new(less.Parser)({ - optimization: less.optimization, - paths: [href.replace(/[\w\.-]+$/, '')], - mime: sheet.type - }).parse(data, function (e, root) { - if (e) { return error(e, href) } - try { - callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining }); - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } catch (e) { - error(e, href); - } - }); - } catch (e) { - error(e, href); - } - } - }, function (status, url) { - throw new(Error)("Couldn't load " + url + " (" + status + ")"); - }); -} - -function extractId(href) { - return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\?.*$/, '' ) // Remove query - .replace(/\.[^\.\/]+$/, '' ) // Remove file extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - var css; - - // Strip the query-string - var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If the stylesheet doesn't exist, create a new node - if ((css = document.getElementById(id)) === null) { - css = document.createElement('style'); - css.type = 'text/css'; - css.media = sheet.media || 'screen'; - css.id = id; - document.getElementsByTagName('head')[0].appendChild(css); - } - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - (function (node) { - if (css.childNodes.length > 0) { - if (css.firstChild.nodeValue !== node.nodeValue) { - css.replaceChild(node, css.firstChild); - } - } else { - css.appendChild(node); - } - })(document.createTextNode(styles)); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? false : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - if (isFileProtocol) { - if (xhr.status === 0) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new(XMLHttpRequest); - } else { - try { - return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX."); - return null; - } - } -} - -function removeNode(node) { - return node && node.parentNode.removeChild(node); -} - -function log(str) { - if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } -} - -function error(e, href) { - var id = 'less-error-message:' + extractId(href); - - var template = ['
      ', - '
    • {0}
      • ', - '
    • {current}
      • ', - '
    • {2}
      • ', - '
    '].join('\n'); - - var elem = document.createElement('div'), timer, content; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.message || 'There is an error in your .less file') + - '

    ' + '

    ' + href + " "; - - if (e.extract) { - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - template.replace(/\[(-?\d)\]/g, function (_, i) { - return (parseInt(e.line) + parseInt(i)) || ''; - }).replace(/\{(\d)\}/g, function (_, i) { - return e.extract[parseInt(i)] || ''; - }).replace(/\{current\}/, e.extract[1].slice(0, e.column) + '' + - e.extract[1].slice(e.column) + ''); - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #ee4444;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.ctx {', - 'color: #dd4444;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); - - if (less.env == 'development') { - timer = setInterval(function () { - if (document.body) { - if (document.getElementById(id)) { - document.body.replaceChild(elem, document.getElementById(id)); - } else { - document.body.insertBefore(elem, document.body.firstChild); - } - clearInterval(timer); - } - }, 10); - } -} - -})(window); diff --git a/awx/ui/static/lib/less/dist/less-1.1.2.min.js b/awx/ui/static/lib/less/dist/less-1.1.2.min.js deleted file mode 100644 index 9b2fc8a43b..0000000000 --- a/awx/ui/static/lib/less/dist/less-1.1.2.min.js +++ /dev/null @@ -1,16 +0,0 @@ -// -// LESS - Leaner CSS v1.1.2 -// http://lesscss.org -// -// Copyright (c) 2009-2011, Alexis Sellier -// Licensed under the Apache 2.0 License. -// -// -// LESS - Leaner CSS v1.1.2 -// http://lesscss.org -// -// Copyright (c) 2009-2011, Alexis Sellier -// Licensed under the Apache 2.0 License. -// -(function(a,b){function v(a,b){var c="less-error-message:"+p(b),e=["
      ",'
    • {0}
      • ',"
    • {current}
      • ",'
    • {2}
      • ',"
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    "+(a.message||"There is an error in your .less file")+"

    "+'

    '+b+" ",a.extract&&(h+="on line "+a.line+", column "+(a.column+1)+":

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"+b.trim():b.toCSS(a)}).join("")}}(c("less/tree")),function(b){b.URL=function(b,c){b.data?this.attrs=b:(!/^(?:https?:\/|file:\/|data:\/)?\//.test(b.value)&&c.length>0&&typeof a!="undefined"&&(b.value=c[0]+(b.value.charAt(0)==="/"?b.value.slice(1):b.value)),this.value=b,this.paths=c)},b.URL.prototype={toCSS:function(){return"url("+(this.attrs?"data:"+this.attrs.mime+this.attrs.charset+this.attrs.base64+this.attrs.data:this.value.toCSS())+")"},eval:function(a){return this.attrs?this:new b.URL(this.value.eval(a),this.paths)}}}(c("less/tree")),function(a){a.Value=function(a){this.value=a,this.is="value"},a.Value.prototype={eval:function(b){return this.value.length===1?this.value[0].eval(b):new a.Value(this.value.map(function(a){return a.eval(b)}))},toCSS:function(a){return this.value.map(function(b){return b.toCSS(a)}).join(a.compress?",":", ")}}}(c("less/tree")),function(a){a.Variable=function(a,b){this.name=a,this.index=b},a.Variable.prototype={eval:function(b){var c,d,e=this.name;e.indexOf("@@")==0&&(e="@"+(new a.Variable(e.slice(1))).eval(b).value);if(c=a.find(b.frames,function(a){ -if(d=a.variable(e))return d.value.eval(b)}))return c;throw{message:"variable "+e+" is undefined",index:this.index}}}}(c("less/tree")),c("less/tree").find=function(a,b){for(var c=0,d;c1?"["+a.value.map(function(a){return a.toCSS(!1)}).join(", ")+"]":a.toCSS(!1)};var g=location.protocol==="file:"||location.protocol==="chrome:"||location.protocol==="chrome-extension:"||location.protocol==="resource:";d.env=d.env||(location.hostname=="127.0.0.1"||location.hostname=="0.0.0.0"||location.hostname=="localhost"||location.port.length>0||g?"development":"production"),d.async=!1,d.poll=d.poll||(g?1e3:1500),d.watch=function(){return this.watchMode=!0},d.unwatch=function(){return this.watchMode=!1},d.env==="development"?(d.optimization=0,/!watch/.test(location.hash)&&d.watch(),d.watchTimer=setInterval(function(){d.watchMode&&n(function(a,b,c){a&&q(a.toCSS(),b,c.lastModified)})},d.poll)):d.optimization=3;var h;try{h=typeof a.localStorage=="undefined"?null:a.localStorage}catch(i){h=null}var j=document.getElementsByTagName("link"),k=/^text\/(x-)?less$/;d.sheets=[];for(var l=0;l>> 0; - for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree; - -if (typeof(window) === 'undefined') { - less = exports, - tree = require('less/tree'); -} else { - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - mime: env && env.mime, // MIME type of .less files - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (root) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - that.files[path] = root; // Store the root - - callback(root); - - if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, c, index, endIndex, k, mem; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - mem = i += length; - endIndex = i + chunks[j].length - length; - - while (i < endIndex) { - c = input.charCodeAt(i); - if (! (c === 32 || c === 10 || c === 9)) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - chunks = []; - input = str.replace(/\r\n/g, '\n'); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /[^"'`\{\}\/\(\)]+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - level = 0, - match, - chunk = chunks[0], - inParam, - inString; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = i; - - if (!inString && !inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - if (c === '{' && !inString && !inParam) { level ++; - chunk.push(c); - } else if (c === '}' && !inString && !inParam) { level --; - chunk.push(c); - chunks[++j] = chunk = []; - } else if (c === '(' && !inString && !inParam) { - chunk.push(c); - inParam = true; - } else if (c === ')' && !inString && inParam) { - chunk.push(c); - inParam = false; - } else { - if (c === '"' || c === "'" || c === '`') { - if (! inString) { - inString = c; - } else { - inString = inString === c ? false : inString; - } - } - chunk.push(c); - } - } - if (level > 0) { - throw { - type: 'Syntax', - message: "Missing closing `}`", - filename: env.filename - }; - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = []; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false }); - } catch (e) { - lines = input.split('\n'); - line = getLine(e.index); - - for (var n = e.index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - throw { - type: e.type, - message: e.message, - filename: env.filename, - index: e.index, - line: typeof(line) === 'number' ? line + 1 : null, - callLine: e.call && (getLine(e.call) + 1), - callExtract: lines[getLine(e.call)], - stack: e.stack, - column: column, - extract: [ - lines[line - 1], - lines[line], - lines[line + 1] - ] - }; - } - if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - - function getLine(index) { - return index ? (input.slice(0, index).match(/\n/g) || "").length : null; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - name: "ParseError", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function () { callback(error, root) }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - if (k = $(/^[A-Za-z-]+/)) { return new(tree.Keyword)(k) } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, args, index = i; - - if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return; - - name = name[1].toLowerCase(); - - if (name === 'url') { return null } - else { i += name.length } - - if (name === 'alpha') { return $(this.alpha) } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; - if (! $(')')) throw new(Error)("missing closing ) for url()"); - - return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - dataURI: function () { - var obj; - - if ($(/^data:/)) { - obj = {}; - obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; - obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; - obj.base64 = $(/^;\s*base64/) || ''; - obj.data = $(/^,\s*[^)]+/); - - if (obj.data) { return obj } - } - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i); - - if (s !== '.' && s !== '#') { return } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(c, e)); - c = $('>'); - } - $('(') && (args = $(this.entities.arguments)) && $(')'); - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index); - } - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value; - - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { - name = match[1]; - - while (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - if (value = $(this.expression)) { - params.push({ name: param.name, value: value }); - } else { - throw new(Error)("Expected value"); - } - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - if (! $(',')) { break } - } - if (! $(')')) throw new(Error)("Expected )"); - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - if (! $(')')) throw new(Error)("missing closing ) for alpha()"); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c; - - c = $(this.combinator); - e = $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || $('*') || $(this.attribute) || $(/^\([^)@]+\)/); - - if (e) { return new(tree.Element)(c, e) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '&' || c === '+' || c === '~') { - i++; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(c); - } else if (c === ':' && input.charAt(i + 1) === ':') { - i += 2; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)('::'); - } else if (input.charAt(i - 1) === ' ') { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match; - save(); - - if (match = /^([.#: \w-]+)[\s\n]*\{/.exec(chunks[j])) { - i += match[0].length - 1; - selectors = [new(tree.Selector)([new(tree.Element)(null, match[1])])]; - } else { - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - } - - if (selectors.length > 0 && (rules = $(this.block))) { - return new(tree.Ruleset)(selectors, rules); - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path; - if ($(/^@import\s+/) && - (path = $(this.entities.quoted) || $(this.entities.url)) && - $(';')) { - return new(tree.Import)(path, imports); - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, types; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import'])) { - return value; - } else if (name = $(/^@media|@page|@-[-a-z]+/)) { - types = ($(/^[^{]+/) || '').trim(); - if (rules = $(this.block)) { - return new(tree.Directive)(name + " " + types, rules); - } - } else if (name = $(/^@[-a-z]+/)) { - if (name === '@font-face') { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while ((op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (typeof(window) !== 'undefined') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (path.charAt(0) !== '/' && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math.round(number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math.round(n); - } else { - throw { - error: "RuntimeError", - message: "math functions take numbers as parameters" - }; - } - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('less/tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index) { - this.name = name; - this.args = args; - this.index = index; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { message: "error evaluating function `" + this.name + "`", - index: this.index }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('less/tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else if (rgb.length == 8) { - this.alpha = parseInt(rgb.substring(0,2), 16) / 255.0; - this.rgb = rgb.substr(2).match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - } -}; - - -})(require('less/tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - env.frames.unshift(this); - this.ruleset = this.ruleset && this.ruleset.eval(env); - env.frames.shift(); - return this; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Element = function (combinator, value) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - this.value = value.trim(); -}; -tree.Element.prototype.toCSS = function (env) { - return this.combinator.toCSS(env || {}) + this.value; -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - '&' : '', - ':' : ' :', - '::': '::', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('less/tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(' '); - } -}; - -})(require('less/tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports) { - var that = this; - - this._path = path; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (root) { - if (! root) { - throw new(Error)("Error parsing " + that.path); - } - that.root = root; - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function () { - if (this.css) { - return "@import " + this._path.toCSS() + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return ruleset.rules; - } - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('less/tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value } -}; - -})(require('less/tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, args, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(args, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments).rules); - match = true; - } catch (e) { - throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; - } - } - } - if (match) { - return rules; - } else { - throw { message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index }; - } - } - } - throw { message: this.selector.toCSS().trim() + " is undefined", - index: this.index }; - } -}; - -tree.mixin.Definition = function (name, params, rules) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - eval: function (env, args) { - var frame = new(tree.Ruleset)(null, []), context, _arguments = []; - - for (var i = 0, val; i < this.params.length; i++) { - if (this.params[i].name) { - if (val = (args && args[i]) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); - } else { - throw { message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push(args[i] || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (argsLength < this.required) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return v.value || v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + ";"; - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); - - ruleset.root = this.root; - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > 1) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - rule; - - if (! this.root) { - if (context.length === 0) { - paths = this.selectors.map(function (s) { return [s] }); - } else { - for (var s = 0; s < this.selectors.length; s++) { - for (var c = 0; c < context.length; c++) { - paths.push(context[c].concat([this.selectors[s]])); - } - } - } - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); - css.push(selector, - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - } -}; -})(require('less/tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; - if (this.elements[0].combinator.value === "") { - this.elements[0].combinator.value = ' '; - } -}; -tree.Selector.prototype.match = function (other) { - if (this.elements[0].value === other.elements[0].value) { - return true; - } else { - return false; - } -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - return this._css = this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); -}; - -})(require('less/tree')); -(function (tree) { - -tree.URL = function (val, paths) { - if (val.data) { - this.attrs = val; - } else { - // Add the base path if the URL is relative and we are in the browser - if (!/^(?:https?:\/|file:\/|data:\/)?\//.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') { - val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - this.value = val; - this.paths = paths; - } -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data - : this.value.toCSS()) + ")"; - }, - eval: function (ctx) { - return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Variable = function (name, index) { this.name = name, this.index = index }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { message: "variable " + name + " is undefined", - index: this.index }; - } - } -}; - -})(require('less/tree')); -require('less/tree').find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -require('less/tree').jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; -// -// browser.js - client-side engine -// - -var isFileProtocol = (location.protocol === 'file:' || - location.protocol === 'chrome:' || - location.protocol === 'chrome-extension:' || - location.protocol === 'resource:'); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 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sheet.href.replace(/\?.*$/, '') : ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If the stylesheet doesn't exist, create a new node - if ((css = document.getElementById(id)) === null) { - css = document.createElement('style'); - css.type = 'text/css'; - css.media = sheet.media || 'screen'; - css.id = id; - document.getElementsByTagName('head')[0].appendChild(css); - } - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - (function (node) { - if (css.childNodes.length > 0) { - if (css.firstChild.nodeValue !== node.nodeValue) { - css.replaceChild(node, css.firstChild); - } - } else { - css.appendChild(node); - } - })(document.createTextNode(styles)); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? 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This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - mime: env && env.mime, // MIME type of .less files - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (root) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - that.files[path] = root; // Store the root - - callback(root); - - if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, c, index, endIndex, k, mem; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - mem = i += length; - endIndex = i + chunks[j].length - length; - - while (i < endIndex) { - c = input.charCodeAt(i); - if (! (c === 32 || c === 10 || c === 9)) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - chunks = []; - input = str.replace(/\r\n/g, '\n'); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /[^"'`\{\}\/\(\)]+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - level = 0, - match, - chunk = chunks[0], - inParam, - inString; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = i; - - if (!inString && !inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - if (c === '{' && !inString && !inParam) { level ++; - chunk.push(c); - } else if (c === '}' && !inString && !inParam) { level --; - chunk.push(c); - chunks[++j] = chunk = []; - } else if (c === '(' && !inString && !inParam) { - chunk.push(c); - inParam = true; - } else if (c === ')' && !inString && inParam) { - chunk.push(c); - inParam = false; - } else { - if (c === '"' || c === "'" || c === '`') { - if (! inString) { - inString = c; - } else { - inString = inString === c ? false : inString; - } - } - chunk.push(c); - } - } - if (level > 0) { - throw { - type: 'Syntax', - message: "Missing closing `}`", - filename: env.filename - }; - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = []; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false }); - } catch (e) { - lines = input.split('\n'); - line = getLine(e.index); - - for (var n = e.index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - throw { - type: e.type, - message: e.message, - filename: env.filename, - index: e.index, - line: typeof(line) === 'number' ? line + 1 : null, - callLine: e.call && (getLine(e.call) + 1), - callExtract: lines[getLine(e.call)], - stack: e.stack, - column: column, - extract: [ - lines[line - 1], - lines[line], - lines[line + 1] - ] - }; - } - if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - - function getLine(index) { - return index ? (input.slice(0, index).match(/\n/g) || "").length : null; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - name: "ParseError", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function () { callback(error, root) }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - if (k = $(/^[A-Za-z-]+/)) { return new(tree.Keyword)(k) } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, args, index = i; - - if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return; - - name = name[1].toLowerCase(); - - if (name === 'url') { return null } - else { i += name.length } - - if (name === 'alpha') { return $(this.alpha) } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; - if (! $(')')) throw new(Error)("missing closing ) for url()"); - - return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - dataURI: function () { - var obj; - - if ($(/^data:/)) { - obj = {}; - obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; - obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; - obj.base64 = $(/^;\s*base64/) || ''; - obj.data = $(/^,\s*[^)]+/); - - if (obj.data) { return obj } - } - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i); - - if (s !== '.' && s !== '#') { return } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(c, e)); - c = $('>'); - } - $('(') && (args = $(this.entities.arguments)) && $(')'); - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index); - } - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value; - - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { - name = match[1]; - - while (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - if (value = $(this.expression)) { - params.push({ name: param.name, value: value }); - } else { - throw new(Error)("Expected value"); - } - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - if (! $(',')) { break } - } - if (! $(')')) throw new(Error)("Expected )"); - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - if (! $(')')) throw new(Error)("missing closing ) for alpha()"); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c; - - c = $(this.combinator); - e = $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || $('*') || $(this.attribute) || $(/^\([^)@]+\)/) || $(/^(?:\d*\.)?\d+%/); - - if (e) { return new(tree.Element)(c, e) } - - if (c.value && c.value[0] === '&') { - return new(tree.Element)(c, null); - } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~') { - i++; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(c); - } else if (c === '&') { - match = '&'; - i++; - if(input.charAt(i) === ' ') { - match = '& '; - } - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(match); - } else if (c === ':' && input.charAt(i + 1) === ':') { - i += 2; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)('::'); - } else if (input.charAt(i - 1) === ' ') { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match; - save(); - - if (match = /^([.#:% \w-]+)[\s\n]*\{/.exec(chunks[j])) { - i += match[0].length - 1; - selectors = [new(tree.Selector)([new(tree.Element)(null, match[1])])]; - } else { - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - } - - if (selectors.length > 0 && (rules = $(this.block))) { - return new(tree.Ruleset)(selectors, rules); - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path; - if ($(/^@import\s+/) && - (path = $(this.entities.quoted) || $(this.entities.url)) && - $(';')) { - return new(tree.Import)(path, imports); - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, types; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import'])) { - return value; - } else if (name = $(/^@media|@page/) || $(/^@(?:-webkit-)?keyframes/)) { - types = ($(/^[^{]+/) || '').trim(); - if (rules = $(this.block)) { - return new(tree.Directive)(name + " " + types, rules); - } - } else if (name = $(/^@[-a-z]+/)) { - if (name === '@font-face') { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while ((op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (typeof(window) !== 'undefined') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (path.charAt(0) !== '/' && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math.round(number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math.round(n); - } else { - throw { - error: "RuntimeError", - message: "math functions take numbers as parameters" - }; - } - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('less/tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index) { - this.name = name; - this.args = args; - this.index = index; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { message: "error evaluating function `" + this.name + "`", - index: this.index }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('less/tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else if (rgb.length == 8) { - this.alpha = parseInt(rgb.substring(0,2), 16) / 255.0; - this.rgb = rgb.substr(2).match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - } -}; - - -})(require('less/tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - env.frames.unshift(this); - this.ruleset = this.ruleset && this.ruleset.eval(env); - env.frames.shift(); - return this; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Element = function (combinator, value) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - this.value = value ? value.trim() : ""; -}; -tree.Element.prototype.toCSS = function (env) { - return this.combinator.toCSS(env || {}) + this.value; -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else if (value === '& ') { - this.value = '& '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - '&' : '', - '& ' : ' ', - ':' : ' :', - '::': '::', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('less/tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(' '); - } -}; - -})(require('less/tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports) { - var that = this; - - this._path = path; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (root) { - if (! root) { - throw new(Error)("Error parsing " + that.path); - } - that.root = root; - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function () { - if (this.css) { - return "@import " + this._path.toCSS() + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return ruleset.rules; - } - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('less/tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value } -}; - -})(require('less/tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, args, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(args, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments).rules); - match = true; - } catch (e) { - throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; - } - } - } - if (match) { - return rules; - } else { - throw { message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index }; - } - } - } - throw { message: this.selector.toCSS().trim() + " is undefined", - index: this.index }; - } -}; - -tree.mixin.Definition = function (name, params, rules) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - eval: function (env, args) { - var frame = new(tree.Ruleset)(null, []), context, _arguments = []; - - for (var i = 0, val; i < this.params.length; i++) { - if (this.params[i].name) { - if (val = (args && args[i]) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); - } else { - throw { message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push(args[i] || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (argsLength < this.required) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return v.value || v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + ";"; - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); - - ruleset.root = this.root; - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > 1) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - rule; - - if (! this.root) { - if (context.length === 0) { - paths = this.selectors.map(function (s) { return [s] }); - } else { - this.joinSelectors( paths, context, this.selectors ); - } - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); - css.push(selector, - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - var before = [], after = [], beforeElements = [], - afterElements = [], hasParentSelector = false, el; - - for (var i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.combinator.value[0] === '&') { - hasParentSelector = true; - } - if (hasParentSelector) afterElements.push(el); - else beforeElements.push(el); - } - - if (! hasParentSelector) { - afterElements = beforeElements; - beforeElements = []; - } - - if (beforeElements.length > 0) { - before.push(new(tree.Selector)(beforeElements)); - } - - if (afterElements.length > 0) { - after.push(new(tree.Selector)(afterElements)); - } - - for (var c = 0; c < context.length; c++) { - paths.push(before.concat(context[c]).concat(after)); - } - } -}; -})(require('less/tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; - if (this.elements[0].combinator.value === "") { - this.elements[0].combinator.value = ' '; - } -}; -tree.Selector.prototype.match = function (other) { - if (this.elements[0].value === other.elements[0].value) { - return true; - } else { - return false; - } -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - return this._css = this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); -}; - -})(require('less/tree')); -(function (tree) { - -tree.URL = function (val, paths) { - if (val.data) { - this.attrs = val; - } else { - // Add the base path if the URL is relative and we are in the browser - if (!/^(?:https?:\/|file:\/|data:\/)?\//.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') { - val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - this.value = val; - this.paths = paths; - } -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data - : this.value.toCSS()) + ")"; - }, - eval: function (ctx) { - return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Variable = function (name, index) { this.name = name, this.index = index }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { message: "variable " + name + " is undefined", - index: this.index }; - } - } -}; - -})(require('less/tree')); -require('less/tree').find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -require('less/tree').jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; -// -// browser.js - client-side engine -// - -var isFileProtocol = (location.protocol === 'file:' || - location.protocol === 'chrome:' || - location.protocol === 'chrome-extension:' || - location.protocol === 'resource:'); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -// -// Watch mode -// -less.watch = function () { return this.watchMode = true }; -less.unwatch = function () { return this.watchMode = false }; - -if (less.env === 'development') { - less.optimization = 0; - - if (/!watch/.test(location.hash)) { - less.watch(); - } - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (root, sheet, env) { - if (root) { - createCSS(root.toCSS(), sheet, env.lastModified); - } - }); - } - }, less.poll); -} else { - less.optimization = 3; -} - -var cache; - -try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; -} catch (_) { - cache = null; -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (root, sheet, env) { - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) { - styles[i].type = 'text/css'; - styles[i].innerHTML = tree.toCSS(); - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - var url = window.location.href.replace(/[#?].*$/, ''); - var href = sheet.href.replace(/\?.*$/, ''); - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - - // Stylesheets in IE don't always return the full path - if (! /^(https?|file):/.test(href)) { - if (href.charAt(0) == "/") { - href = window.location.protocol + "//" + window.location.host + href; - } else { - href = url.slice(0, url.lastIndexOf('/') + 1) + href; - } - } - - xhr(sheet.href, sheet.type, function (data, lastModified) { - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, sheet, { local: true, remaining: remaining }); - } else { - // Use remote copy (re-parse) - try { - new(less.Parser)({ - optimization: less.optimization, - paths: [href.replace(/[\w\.-]+$/, '')], - mime: sheet.type - }).parse(data, function (e, root) { - if (e) { return error(e, href) } - try { - callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining }); - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } catch (e) { - error(e, href); - } - }); - } catch (e) { - error(e, href); - } - } - }, function (status, url) { - throw new(Error)("Couldn't load " + url + " (" + status + ")"); - }); -} - -function extractId(href) { - return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\?.*$/, '' ) // Remove query - .replace(/\.[^\.\/]+$/, '' ) // Remove file extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - var css; - - // Strip the query-string - var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If the stylesheet doesn't exist, create a new node - if ((css = document.getElementById(id)) === null) { - css = document.createElement('style'); - css.type = 'text/css'; - css.media = sheet.media || 'screen'; - css.id = id; - document.getElementsByTagName('head')[0].appendChild(css); - } - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - (function (node) { - if (css.childNodes.length > 0) { - if (css.firstChild.nodeValue !== node.nodeValue) { - css.replaceChild(node, css.firstChild); - } - } else { - css.appendChild(node); - } - })(document.createTextNode(styles)); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? false : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - if (isFileProtocol) { - if (xhr.status === 0) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new(XMLHttpRequest); - } else { - try { - return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX."); - return null; - } - } -} - -function removeNode(node) { - return node && node.parentNode.removeChild(node); -} - -function log(str) { - if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } -} - -function error(e, href) { - var id = 'less-error-message:' + extractId(href); - - var template = ['
      ', - '
    • {0}
      • ', - '
    • {current}
      • ', - '
    • {2}
      • ', - '
    '].join('\n'); - - var elem = document.createElement('div'), timer, content; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.message || 'There is an error in your .less file') + - '

    ' + '

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new a.Dimension(Math.round(b.toHSL().s*100),"%")},lightness:function(b){return new a.Dimension(Math.round(b.toHSL().l*100),"%")},alpha:function(b){return new a.Dimension(b.toHSL().a)},saturate:function(a,c){var e=a.toHSL();e.s+=c.value/100,e.s=d(e.s);return b(e)},desaturate:function(a,c){var e=a.toHSL();e.s-=c.value/100,e.s=d(e.s);return b(e)},lighten:function(a,c){var e=a.toHSL();e.l+=c.value/100,e.l=d(e.l);return b(e)},darken:function(a,c){var e=a.toHSL();e.l-=c.value/100,e.l=d(e.l);return b(e)},fadein:function(a,c){var e=a.toHSL();e.a+=c.value/100,e.a=d(e.a);return b(e)},fadeout:function(a,c){var e=a.toHSL();e.a-=c.value/100,e.a=d(e.a);return b(e)},spin:function(a,c){var d=a.toHSL(),e=(d.h+c.value)%360;d.h=e<0?360+e:e;return b(d)},mix:function(b,c,d){var e=d.value/100,f=e*2-1,g=b.toHSL().a-c.toHSL().a,h=((f*g==-1?f:(f+g)/(1+f*g))+1)/2,i=1-h,j=[b.rgb[0]*h+c.rgb[0]*i,b.rgb[1]*h+c.rgb[1]*i,b.rgb[2]*h+c.rgb[2]*i],k=b.alpha*e+c.alpha*(1-e);return new a.Color(j,k)},greyscale:function(b){return this.desaturate(b,new a.Dimension(100))},e:function(b){return new a.Anonymous(b instanceof a.JavaScript?b.evaluated:b)},escape:function(b){return new a.Anonymous(encodeURI(b.value).replace(/=/g,"%3D").replace(/:/g,"%3A").replace(/#/g,"%23").replace(/;/g,"%3B").replace(/\(/g,"%28").replace(/\)/g,"%29"))},"%":function(b){var c=Array.prototype.slice.call(arguments,1),d=b.value;for(var e=0;e255?255:a<0?0:a).toString(16);return a.length===1?"0"+a:a}).join("")},operate:function(b,c){var d=[];c instanceof a.Color||(c=c.toColor());for(var e=0;e<3;e++)d[e]=a.operate(b,this.rgb[e],c.rgb[e]);return new a.Color(d,this.alpha+c.alpha)},toHSL:function(){var a=this.rgb[0]/255,b=this.rgb[1]/255,c=this.rgb[2]/255,d=this.alpha,e=Math.max(a,b,c),f=Math.min(a,b,c),g,h,i=(e+f)/2,j=e-f;if(e===f)g=h=0;else{h=i>.5?j/(2-e-f):j/(e+f);switch(e){case a:g=(b-c)/j+(b":a.compress?">":" > "}[this.value]}}(c("less/tree")),function(a){a.Expression=function(a){this.value=a},a.Expression.prototype={eval:function(b){return this.value.length>1?new a.Expression(this.value.map(function(a){return a.eval(b)})):this.value.length===1?this.value[0].eval(b):this},toCSS:function(a){return this.value.map(function(b){return b.toCSS(a)}).join(" ")}}}(c("less/tree")),function(a){a.Import=function(b,c){var d=this;this._path=b,b instanceof a.Quoted?this.path=/\.(le?|c)ss$/.test(b.value)?b.value:b.value+".less":this.path=b.value.value||b.value,this.css=/css$/.test(this.path),this.css||c.push(this.path,function(a){if(!a)throw new Error("Error parsing "+d.path);d.root=a})},a.Import.prototype={toCSS:function(){return this.css?"@import "+this._path.toCSS()+";\n":""},eval:function(b){var c;if(this.css)return this;c=new a.Ruleset(null,this.root.rules.slice(0));for(var d=0;d0){c=this.arguments&&this.arguments.map(function(b){return b.eval(a)});for(var g=0;g0&&c>this.params.length)return!1;d=Math.min(c,this.arity);for(var e=0;e1?Array.prototype.push.apply(d,e.find(new a.Selector(b.elements.slice(1)),c)):d.push(e);break}});return this._lookups[g]=d},toCSS:function(b,c){var d=[],e=[],f=[],g=[],h,i;this.root||(b.length===0?g=this.selectors.map(function(a){return[a]}):this.joinSelectors(g,b,this.selectors));for(var j=0;j0&&(h=g.map(function(a){return a.map(function(a){return a.toCSS(c)}).join("").trim()}).join(c.compress?",":g.length>3?",\n":", "),d.push(h,(c.compress?"{":" {\n ")+e.join(c.compress?"":"\n ")+(c.compress?"}":"\n}\n"))),d.push(f);return d.join("")+(c.compress?"\n":"")},joinSelectors:function(a,b,c){for(var d=0;d0&&e.push(new a.Selector(g)),h.length>0&&f.push(new a.Selector(h));for(var l=0;l0&&typeof a!="undefined"&&(b.value=c[0]+(b.value.charAt(0)==="/"?b.value.slice(1):b.value)),this.value=b,this.paths=c)},b.URL.prototype={toCSS:function(){return"url("+(this.attrs?"data:"+this.attrs 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")+"]":a.toCSS(!1)};var f=location.protocol==="file:"||location.protocol==="chrome:"||location.protocol==="chrome-extension:"||location.protocol==="resource:";d.env=d.env||(location.hostname=="127.0.0.1"||location.hostname=="0.0.0.0"||location.hostname=="localhost"||location.port.length>0||f?"development":"production"),d.async=!1,d.poll=d.poll||(f?1e3:1500),d.watch=function(){return this.watchMode=!0},d.unwatch=function(){return this.watchMode=!1},d.env==="development"?(d.optimization=0,/!watch/.test(location.hash)&&d.watch(),d.watchTimer=setInterval(function(){d.watchMode&&m(function(a,b,c){a&&p(a.toCSS(),b,c.lastModified)})},d.poll)):d.optimization=3;var g;try{g=typeof a.localStorage=="undefined"?null:a.localStorage}catch(h){g=null}var i=document.getElementsByTagName("link"),j=/^text\/(x-)?less$/;d.sheets=[];for(var k=0;k>> 0; - for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - less = {}; - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'node'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - mime: env && env.mime, // MIME type of .less files - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (root) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - that.files[path] = root; // Store the root - - callback(root); - - if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, c, index, endIndex, k, mem; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - mem = i += length; - endIndex = i + chunks[j].length - length; - - while (i < endIndex) { - c = input.charCodeAt(i); - if (! (c === 32 || c === 10 || c === 9)) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - chunks = []; - input = str.replace(/\r\n/g, '\n'); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /[^"'`\{\}\/\(\)]+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - level = 0, - match, - chunk = chunks[0], - inParam, - inString; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = i; - - if (!inString && !inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - if (c === '{' && !inString && !inParam) { level ++; - chunk.push(c); - } else if (c === '}' && !inString && !inParam) { level --; - chunk.push(c); - chunks[++j] = chunk = []; - } else if (c === '(' && !inString && !inParam) { - chunk.push(c); - inParam = true; - } else if (c === ')' && !inString && inParam) { - chunk.push(c); - inParam = false; - } else { - if (c === '"' || c === "'" || c === '`') { - if (! inString) { - inString = c; - } else { - inString = inString === c ? false : inString; - } - } - chunk.push(c); - } - } - if (level > 0) { - throw { - type: 'Syntax', - message: "Missing closing `}`", - filename: env.filename - }; - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = []; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false }); - } catch (e) { - lines = input.split('\n'); - line = getLine(e.index); - - for (var n = e.index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - throw { - type: e.type, - message: e.message, - filename: env.filename, - index: e.index, - line: typeof(line) === 'number' ? line + 1 : null, - callLine: e.call && (getLine(e.call) + 1), - callExtract: lines[getLine(e.call)], - stack: e.stack, - column: column, - extract: [ - lines[line - 1], - lines[line], - lines[line + 1] - ] - }; - } - if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - - function getLine(index) { - return index ? (input.slice(0, index).match(/\n/g) || "").length : null; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - name: "ParseError", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function () { callback(error, root) }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { return new(tree.Keyword)(k) } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, args, index = i; - - if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return; - - name = name[1].toLowerCase(); - - if (name === 'url') { return null } - else { i += name.length } - - if (name === 'alpha') { return $(this.alpha) } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; - if (! $(')')) throw new(Error)("missing closing ) for url()"); - - return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - dataURI: function () { - var obj; - - if ($(/^data:/)) { - obj = {}; - obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; - obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; - obj.base64 = $(/^;\s*base64/) || ''; - obj.data = $(/^,\s*[^)]+/); - - if (obj.data) { return obj } - } - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i); - - if (s !== '.' && s !== '#') { return } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - $('(') && (args = $(this.entities.arguments)) && $(')'); - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index); - } - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value; - - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { - name = match[1]; - - while (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - if (value = $(this.expression)) { - params.push({ name: param.name, value: value }); - } else { - throw new(Error)("Expected value"); - } - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - if (! $(',')) { break } - } - if (! $(')')) throw new(Error)("Expected )"); - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - if (! $(')')) throw new(Error)("missing closing ) for alpha()"); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c; - - c = $(this.combinator); - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || - $('*') || $(this.attribute) || $(/^\([^)@]+\)/); - - if (e) { return new(tree.Element)(c, e, i) } - - if (c.value && c.value.charAt(0) === '&') { - return new(tree.Element)(c, null, i); - } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~') { - i++; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(c); - } else if (c === '&') { - match = '&'; - i++; - if(input.charAt(i) === ' ') { - match = '& '; - } - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(match); - } else if (c === ':' && input.charAt(i + 1) === ':') { - i += 2; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)('::'); - } else if (input.charAt(i - 1) === ' ') { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match; - save(); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - return new(tree.Ruleset)(selectors, rules); - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path; - if ($(/^@import\s+/) && - (path = $(this.entities.quoted) || $(this.entities.url)) && - $(';')) { - return new(tree.Import)(path, imports); - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, types; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import'])) { - return value; - } else if (name = $(/^@media|@page/) || $(/^@(?:-webkit-|-moz-)?keyframes/)) { - types = ($(/^[^{]+/) || '').trim(); - if (rules = $(this.block)) { - return new(tree.Directive)(name + " " + types, rules); - } - } else if (name = $(/^@[-a-z]+/)) { - if (name === '@font-face') { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while ((op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (path.charAt(0) !== '/' && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math.round(number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math.round(n); - } else { - throw { - error: "RuntimeError", - message: "math functions take numbers as parameters" - }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index) { - this.name = name; - this.args = args; - this.index = index; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { message: "error evaluating function `" + this.name + "`", - index: this.index }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - env.frames.unshift(this); - this.ruleset = this.ruleset && this.ruleset.eval(env); - env.frames.shift(); - return this; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - this.value = value ? value.trim() : ""; - this.index = index; -}; -tree.Element.prototype.toCSS = function (env) { - return this.combinator.toCSS(env || {}) + this.value; -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else if (value === '& ') { - this.value = '& '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - '&' : '', - '& ' : ' ', - ':' : ' :', - '::': '::', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports) { - var that = this; - - this._path = path; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css(\?.*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (root) { - if (! root) { - throw new(Error)("Error parsing " + that.path); - } - that.root = root; - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function () { - if (this.css) { - return "@import " + this._path.toCSS() + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, args, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(args, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments).rules); - match = true; - } catch (e) { - throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; - } - } - } - if (match) { - return rules; - } else { - throw { message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index }; - } - } - } - throw { message: this.selector.toCSS().trim() + " is undefined", - index: this.index }; - } -}; - -tree.mixin.Definition = function (name, params, rules) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - eval: function (env, args) { - var frame = new(tree.Ruleset)(null, []), context, _arguments = []; - - for (var i = 0, val; i < this.params.length; i++) { - if (this.params[i].name) { - if (val = (args && args[i]) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); - } else { - throw { message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push(args[i] || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (argsLength < this.required) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return v.value || v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + ";"; - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); - - ruleset.root = this.root; - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - rule; - - if (! this.root) { - if (context.length === 0) { - paths = this.selectors.map(function (s) { return [s] }); - } else { - this.joinSelectors( paths, context, this.selectors ); - } - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); - css.push(selector, - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - var before = [], after = [], beforeElements = [], - afterElements = [], hasParentSelector = false, el; - - for (var i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.combinator.value.charAt(0) === '&') { - hasParentSelector = true; - } - if (hasParentSelector) afterElements.push(el); - else beforeElements.push(el); - } - - if (! hasParentSelector) { - afterElements = beforeElements; - beforeElements = []; - } - - if (beforeElements.length > 0) { - before.push(new(tree.Selector)(beforeElements)); - } - - if (afterElements.length > 0) { - after.push(new(tree.Selector)(afterElements)); - } - - for (var c = 0; c < context.length; c++) { - paths.push(before.concat(context[c]).concat(after)); - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; - if (this.elements[0].combinator.value === "") { - this.elements[0].combinator.value = ' '; - } -}; -tree.Selector.prototype.match = function (other) { - var len = this.elements.length, - olen = other.elements.length, - max = Math.min(len, olen); - - if (len < olen) { - return false; - } else { - for (var i = 0; i < max; i++) { - if (this.elements[i].value !== other.elements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - return this._css = this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, paths) { - if (val.data) { - this.attrs = val; - } else { - // Add the base path if the URL is relative and we are in the browser - if (less.mode === 'browser' && !/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(val.value) && paths.length > 0) { - val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - this.value = val; - this.paths = paths; - } -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data - : this.value.toCSS()) + ")"; - }, - eval: function (ctx) { - return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index) { this.name = name, this.index = index }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { message: "variable " + name + " is undefined", - index: this.index }; - } - } -}; - -})(require('../tree')); -require('./tree').find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -require('./tree').jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; -// -// browser.js - client-side engine -// - -var isFileProtocol = (location.protocol === 'file:' || - location.protocol === 'chrome:' || - location.protocol === 'chrome-extension:' || - location.protocol === 'resource:'); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -// -// Watch mode -// -less.watch = function () { return this.watchMode = true }; -less.unwatch = function () { return this.watchMode = false }; - -if (less.env === 'development') { - less.optimization = 0; - - if (/!watch/.test(location.hash)) { - less.watch(); - } - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (root, sheet, env) { - if (root) { - createCSS(root.toCSS(), sheet, env.lastModified); - } - }); - } - }, less.poll); -} else { - less.optimization = 3; -} - -var cache; - -try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; -} catch (_) { - cache = null; -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (root, sheet, env) { - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) { - var css = tree.toCSS(); - var style = styles[i]; - try { - style.innerHTML = css; - } catch (_) { - style.styleSheets.cssText = css; - } - style.type = 'text/css'; - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - var url = window.location.href.replace(/[#?].*$/, ''); - var href = sheet.href.replace(/\?.*$/, ''); - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - - // Stylesheets in IE don't always return the full path - if (! /^(https?|file):/.test(href)) { - if (href.charAt(0) == "/") { - href = window.location.protocol + "//" + window.location.host + href; - } else { - href = url.slice(0, url.lastIndexOf('/') + 1) + href; - } - } - - xhr(sheet.href, sheet.type, function (data, lastModified) { - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, sheet, { local: true, remaining: remaining }); - } else { - // Use remote copy (re-parse) - try { - new(less.Parser)({ - optimization: less.optimization, - paths: [href.replace(/[\w\.-]+$/, '')], - mime: sheet.type - }).parse(data, function (e, root) { - if (e) { return error(e, href) } - try { - callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining }); - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } catch (e) { - error(e, href); - } - }); - } catch (e) { - error(e, href); - } - } - }, function (status, url) { - throw new(Error)("Couldn't load " + url + " (" + status + ")"); - }); -} - -function extractId(href) { - return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\?.*$/, '' ) // Remove query - .replace(/\.[^\.\/]+$/, '' ) // Remove file extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - var css; - - // Strip the query-string - var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If the stylesheet doesn't exist, create a new node - if ((css = document.getElementById(id)) === null) { - css = document.createElement('style'); - css.type = 'text/css'; - css.media = sheet.media || 'screen'; - css.id = id; - document.getElementsByTagName('head')[0].appendChild(css); - } - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - (function (node) { - if (css.childNodes.length > 0) { - if (css.firstChild.nodeValue !== node.nodeValue) { - css.replaceChild(node, css.firstChild); - } - } else { - css.appendChild(node); - } - })(document.createTextNode(styles)); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? false : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - if (isFileProtocol) { - if (xhr.status === 0) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new(XMLHttpRequest); - } else { - try { - return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX."); - return null; - } - } -} - -function removeNode(node) { - return node && node.parentNode.removeChild(node); -} - -function log(str) { - if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } -} - -function error(e, href) { - var id = 'less-error-message:' + extractId(href); - - var template = ['
      ', - '
    • {0}
      • ', - '
    • {current}
      • ', - '
    • {2}
      • ', - '
    '].join('\n'); - - var elem = document.createElement('div'), timer, content; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.message || 'There is an error in your .less file') + - '

    ' + '

    ' + href + " "; - - if (e.extract) { - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - template.replace(/\[(-?\d)\]/g, function (_, i) { - return (parseInt(e.line) + parseInt(i)) || ''; - }).replace(/\{(\d)\}/g, function (_, i) { - return e.extract[parseInt(i)] || ''; - }).replace(/\{current\}/, e.extract[1].slice(0, e.column) + '' + - e.extract[1].slice(e.column) + ''); - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #ee4444;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.ctx {', - 'color: #dd4444;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); - - if (less.env == 'development') { - timer = setInterval(function () { - if (document.body) { - if (document.getElementById(id)) { - document.body.replaceChild(elem, document.getElementById(id)); - } else { - document.body.insertBefore(elem, document.body.firstChild); - } - clearInterval(timer); - } - }, 10); - } -} - -})(window); diff --git a/awx/ui/static/lib/less/dist/less-1.1.5.min.js b/awx/ui/static/lib/less/dist/less-1.1.5.min.js deleted file mode 100644 index 49949fbea5..0000000000 --- a/awx/ui/static/lib/less/dist/less-1.1.5.min.js +++ /dev/null @@ -1,9 +0,0 @@ -// -// LESS - Leaner CSS v1.1.5 -// http://lesscss.org -// -// Copyright (c) 2009-2011, Alexis Sellier -// Licensed under the Apache 2.0 License. -// -(function(a,b){function c(b){return a.less[b.split("/")[1]]}function l(){var a=document.getElementsByTagName("style");for(var b=0;b0?d.firstChild.nodeValue!==a.nodeValue&&d.replaceChild(a,d.firstChild):d.appendChild(a)})(document.createTextNode(a));c&&g&&(t("saving "+e+" to cache."),g.setItem(e,a),g.setItem(e+":timestamp",c))}function q(a,b,c,e){function i(b,c,d){b.status>=200&&b.status<300?c(b.responseText,b.getResponseHeader("Last-Modified")):typeof d=="function"&&d(b.status,a)}var g=r(),h=f?!1:d.async;typeof g.overrideMimeType=="function"&&g.overrideMimeType("text/css"),g.open("GET",a,h),g.setRequestHeader("Accept",b||"text/x-less, text/css; q=0.9, */*; q=0.5"),g.send(null),f?g.status===0?c(g.responseText):e(g.status,a):h?g.onreadystatechange=function(){g.readyState==4&&i(g,c,e)}:i(g,c,e)}function r(){if(a.XMLHttpRequest)return new XMLHttpRequest;try{return new ActiveXObject("MSXML2.XMLHTTP.3.0")}catch(b){return t("browser doesn't support AJAX."),null}}function s(a){return a&&a.parentNode.removeChild(a)}function t(a){d.env=="development"&&typeof console!="undefined"&&console.log("less: "+a)}function u(a,b){var c="less-error-message:"+o(b),e=["
      ",'
    • {0}
      • ',"
    • {current}
      • ",'
    • {2}
      • ',"
    "].join("\n"),f=document.createElement("div"),g,h;f.id=c,f.className="less-error-message",h="

    "+(a.message||"There is an error in your .less file")+"

    "+'

    '+b+" ",a.extract&&(h+="on line "+a.line+", column "+(a.column+1)+":

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l=0;l0&&(a.value=b[0]+(a.value.charAt(0)==="/"?a.value.slice(1):a.value)),this.value=a,this.paths=b)},a.URL.prototype={toCSS:function(){return"url("+(this.attrs?"data:"+this.attrs.mime+this.attrs.charset+this.attrs.base64+this.attrs.data:this.value.toCSS())+")"},eval:function(b){return this.attrs?this:new a.URL(this.value.eval(b),this.paths)}}}(c("../tree")),function(a){a.Value=function(a){this.value=a,this.is="value"},a.Value.prototype={eval:function(b){return this.value.length===1?this.value[0].eval(b):new a.Value(this.value.map(function(a){return a.eval(b)}))},toCSS:function(a){return this.value.map(function(b){return b.toCSS(a)}).join(a.compress?",":", ")}}}(c("../tree")),function(a){a.Variable=function(a,b){this.name=a,this.index=b},a.Variable.prototype={eval:function(b){var c,d,e=this.name;e.indexOf("@@")==0&&(e="@"+(new a.Variable(e.slice(1))).eval(b).value);if(c=a.find(b.frames,function(a){if(d=a.variable(e))return d.value.eval(b)}))return c;throw{message:"variable "+e+" is undefined",index:this.index}}}}(c("../tree")),c("./tree").find=function(a,b){for(var c=0,d;c1?"["+a.value.map(function(a){return a.toCSS(!1)}).join(", ")+"]":a.toCSS(!1)};var f=location.protocol==="file:"||location.protocol==="chrome:"||location.protocol==="chrome-extension:"||location.protocol==="resource:";d.env=d.env||(location.hostname=="127.0.0.1"||location.hostname=="0.0.0.0"||location.hostname=="localhost"||location.port.length>0||f?"development":"production"),d.async=!1,d.poll=d.poll||(f?1e3:1500),d.watch=function(){return this.watchMode=!0},d.unwatch=function(){return this.watchMode=!1},d.env==="development"?(d.optimization=0,/!watch/.test(location.hash)&&d.watch(),d.watchTimer=setInterval(function(){d.watchMode&&m(function(a,b,c){a&&p(a.toCSS(),b,c.lastModified)})},d.poll)):d.optimization=3;var g;try{g=typeof a.localStorage=="undefined"?null:a.localStorage}catch(h){g=null}var i=document.getElementsByTagName("link"),j=/^text\/(x-)?less$/;d.sheets=[];for(var k=0;k>> 0; - for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - less = {}; - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'node'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - mime: env && env.mime, // MIME type of .less files - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (root) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - that.files[path] = root; // Store the root - - callback(root); - - if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, c, index, endIndex, k, mem; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - mem = i += length; - endIndex = i + chunks[j].length - length; - - while (i < endIndex) { - c = input.charCodeAt(i); - if (! (c === 32 || c === 10 || c === 9)) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - chunks = []; - input = str.replace(/\r\n/g, '\n'); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /[^"'`\{\}\/\(\)]+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - level = 0, - match, - chunk = chunks[0], - inParam, - inString; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = i; - - if (!inString && !inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - if (c === '{' && !inString && !inParam) { level ++; - chunk.push(c); - } else if (c === '}' && !inString && !inParam) { level --; - chunk.push(c); - chunks[++j] = chunk = []; - } else if (c === '(' && !inString && !inParam) { - chunk.push(c); - inParam = true; - } else if (c === ')' && !inString && inParam) { - chunk.push(c); - inParam = false; - } else { - if (c === '"' || c === "'" || c === '`') { - if (! inString) { - inString = c; - } else { - inString = inString === c ? false : inString; - } - } - chunk.push(c); - } - } - if (level > 0) { - throw { - type: 'Syntax', - message: "Missing closing `}`", - filename: env.filename - }; - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = []; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false }); - } catch (e) { - lines = input.split('\n'); - line = getLine(e.index); - - for (var n = e.index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - throw { - type: e.type, - message: e.message, - filename: env.filename, - index: e.index, - line: typeof(line) === 'number' ? line + 1 : null, - callLine: e.call && (getLine(e.call) + 1), - callExtract: lines[getLine(e.call)], - stack: e.stack, - column: column, - extract: [ - lines[line - 1], - lines[line], - lines[line + 1] - ] - }; - } - if (options.yuicompress && less.mode === 'node') { - return require('./cssmin').compressor.cssmin(css); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - - function getLine(index) { - return index ? (input.slice(0, index).match(/\n/g) || "").length : null; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - name: "ParseError", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function () { callback(error, root) }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k) - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, args, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1].toLowerCase(); - - if (name === 'url') { return null } - else { i += name.length } - - if (name === 'alpha') { return $(this.alpha) } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; - if (! $(')')) throw new(Error)("missing closing ) for url()"); - - return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - dataURI: function () { - var obj; - - if ($(/^data:/)) { - obj = {}; - obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; - obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; - obj.base64 = $(/^;\s*base64/) || ''; - obj.data = $(/^,\s*[^)]+/); - - if (obj.data) { return obj } - } - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|rem|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i); - - if (s !== '.' && s !== '#') { return } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - $('(') && (args = $(this.entities.arguments)) && $(')'); - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index); - } - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value; - - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { - name = match[1]; - - while (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - if (value = $(this.expression)) { - params.push({ name: param.name, value: value }); - } else { - throw new(Error)("Expected value"); - } - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - if (! $(',')) { break } - } - if (! $(')')) throw new(Error)("Expected )"); - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - if (! $(')')) throw new(Error)("missing closing ) for alpha()"); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c; - - c = $(this.combinator); - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || - $('*') || $(this.attribute) || $(/^\([^)@]+\)/); - - if (e) { return new(tree.Element)(c, e, i) } - - if (c.value && c.value.charAt(0) === '&') { - return new(tree.Element)(c, null, i); - } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~') { - i++; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(c); - } else if (c === '&') { - match = '&'; - i++; - if(input.charAt(i) === ' ') { - match = '& '; - } - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(match); - } else if (c === ':' && input.charAt(i + 1) === ':') { - i += 2; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)('::'); - } else if (input.charAt(i - 1) === ' ') { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match; - save(); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - return new(tree.Ruleset)(selectors, rules); - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path; - if ($(/^@import\s+/) && - (path = $(this.entities.quoted) || $(this.entities.url)) && - $(';')) { - return new(tree.Import)(path, imports); - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, types; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import'])) { - return value; - } else if (name = $(/^@media|@page/) || $(/^@(?:-webkit-|-moz-|-o-|-ms-)[a-z0-9-]+/) || $('keyframes')) { - types = ($(/^[^{]+/) || '').trim(); - if (rules = $(this.block)) { - return new(tree.Directive)(name + " " + types, rules); - } - } else if (name = $(/^@[-a-z]+/)) { - if (name === '@font-face') { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (path.charAt(0) !== '/' && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n) { - return this._math('round', n); - }, - ceil: function (n) { - return this._math('ceil', n); - }, - floor: function (n) { - return this._math('floor', n); - }, - _math: function (fn, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math[fn](number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math[fn](n); - } else { - throw { - error: "RuntimeError", - message: "math functions take numbers as parameters" - }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index) { - this.name = name; - this.args = args; - this.index = index; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { message: "error evaluating function `" + this.name + "`", - index: this.index }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - env.frames.unshift(this); - this.ruleset = this.ruleset && this.ruleset.eval(env); - env.frames.shift(); - return this; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - this.value = value ? value.trim() : ""; - this.index = index; -}; -tree.Element.prototype.toCSS = function (env) { - return this.combinator.toCSS(env || {}) + this.value; -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else if (value === '& ') { - this.value = '& '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - '&' : '', - '& ' : ' ', - ':' : ' :', - '::': '::', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports) { - var that = this; - - this._path = path; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css(\?.*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (root) { - if (! root) { - throw new(Error)("Error parsing " + that.path); - } - that.root = root; - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function () { - if (this.css) { - return "@import " + this._path.toCSS() + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, args, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(args, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments).rules); - match = true; - } catch (e) { - throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; - } - } - } - if (match) { - return rules; - } else { - throw { message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index }; - } - } - } - throw { message: this.selector.toCSS().trim() + " is undefined", - index: this.index }; - } -}; - -tree.mixin.Definition = function (name, params, rules) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - eval: function (env, args) { - var frame = new(tree.Ruleset)(null, []), context, _arguments = []; - - for (var i = 0, val; i < this.params.length; i++) { - if (this.params[i].name) { - if (val = (args && args[i]) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); - } else { - throw { message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push(args[i] || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (argsLength < this.required) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return v.value || v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + ";"; - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); - - ruleset.root = this.root; - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - rule; - - if (! this.root) { - if (context.length === 0) { - paths = this.selectors.map(function (s) { return [s] }); - } else { - this.joinSelectors( paths, context, this.selectors ); - } - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); - css.push(selector, - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - var before = [], after = [], beforeElements = [], - afterElements = [], hasParentSelector = false, el; - - for (var i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.combinator.value.charAt(0) === '&') { - hasParentSelector = true; - } - if (hasParentSelector) afterElements.push(el); - else beforeElements.push(el); - } - - if (! hasParentSelector) { - afterElements = beforeElements; - beforeElements = []; - } - - if (beforeElements.length > 0) { - before.push(new(tree.Selector)(beforeElements)); - } - - if (afterElements.length > 0) { - after.push(new(tree.Selector)(afterElements)); - } - - for (var c = 0; c < context.length; c++) { - paths.push(before.concat(context[c]).concat(after)); - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; - if (this.elements[0].combinator.value === "") { - this.elements[0].combinator.value = ' '; - } -}; -tree.Selector.prototype.match = function (other) { - var len = this.elements.length, - olen = other.elements.length, - max = Math.min(len, olen); - - if (len < olen) { - return false; - } else { - for (var i = 0; i < max; i++) { - if (this.elements[i].value !== other.elements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - return this._css = this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, paths) { - if (val.data) { - this.attrs = val; - } else { - // Add the base path if the URL is relative and we are in the browser - if (typeof(window) !== 'undefined' && !/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(val.value) && paths.length > 0) { - val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - this.value = val; - this.paths = paths; - } -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data - : this.value.toCSS()) + ")"; - }, - eval: function (ctx) { - return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index) { this.name = name, this.index = index }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { message: "variable " + name + " is undefined", - index: this.index }; - } - } -}; - -})(require('../tree')); -require('./tree').find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -require('./tree').jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; -// -// browser.js - client-side engine -// - -var isFileProtocol = (location.protocol === 'file:' || - location.protocol === 'chrome:' || - location.protocol === 'chrome-extension:' || - location.protocol === 'resource:'); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -// -// Watch mode -// -less.watch = function () { return this.watchMode = true }; -less.unwatch = function () { return this.watchMode = false }; - -if (less.env === 'development') { - less.optimization = 0; - - if (/!watch/.test(location.hash)) { - less.watch(); - } - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (root, sheet, env) { - if (root) { - createCSS(root.toCSS(), sheet, env.lastModified); - } - }); - } - }, less.poll); -} else { - less.optimization = 3; -} - -var cache; - -try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; -} catch (_) { - cache = null; -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (root, sheet, env) { - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) { - var css = tree.toCSS(); - var style = styles[i]; - try { - style.innerHTML = css; - } catch (_) { - style.styleSheets.cssText = css; - } - style.type = 'text/css'; - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - var url = window.location.href.replace(/[#?].*$/, ''); - var href = sheet.href.replace(/\?.*$/, ''); - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - - // Stylesheets in IE don't always return the full path - if (! /^(https?|file):/.test(href)) { - if (href.charAt(0) == "/") { - href = window.location.protocol + "//" + window.location.host + href; - } else { - href = url.slice(0, url.lastIndexOf('/') + 1) + href; - } - } - - xhr(sheet.href, sheet.type, function (data, lastModified) { - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, sheet, { local: true, remaining: remaining }); - } else { - // Use remote copy (re-parse) - try { - new(less.Parser)({ - optimization: less.optimization, - paths: [href.replace(/[\w\.-]+$/, '')], - mime: sheet.type - }).parse(data, function (e, root) { - if (e) { return error(e, href) } - try { - callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining }); - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } catch (e) { - error(e, href); - } - }); - } catch (e) { - error(e, href); - } - } - }, function (status, url) { - throw new(Error)("Couldn't load " + url + " (" + status + ")"); - }); -} - -function extractId(href) { - return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\?.*$/, '' ) // Remove query - .replace(/\.[^\.\/]+$/, '' ) // Remove file extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - var css; - - // Strip the query-string - var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If the stylesheet doesn't exist, create a new node - if ((css = document.getElementById(id)) === null) { - css = document.createElement('style'); - css.type = 'text/css'; - css.media = sheet.media || 'screen'; - css.id = id; - document.getElementsByTagName('head')[0].appendChild(css); - } - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - (function (node) { - if (css.childNodes.length > 0) { - if (css.firstChild.nodeValue !== node.nodeValue) { - css.replaceChild(node, css.firstChild); - } - } else { - css.appendChild(node); - } - })(document.createTextNode(styles)); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? false : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - if (isFileProtocol) { - if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new(XMLHttpRequest); - } else { - try { - return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX."); - return null; - } - } -} - -function removeNode(node) { - return node && node.parentNode.removeChild(node); -} - -function log(str) { - if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } -} - -function error(e, href) { - var id = 'less-error-message:' + extractId(href); - - var template = ['
      ', - '
    • {0}
      • ', - '
    • {current}
      • ', - '
    • {2}
      • ', - '
    '].join('\n'); - - var elem = document.createElement('div'), timer, content; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.message || 'There is an error in your .less file') + - '

    ' + '

    ' + href + " "; - - if (e.extract) { - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - template.replace(/\[(-?\d)\]/g, function (_, i) { - return (parseInt(e.line) + parseInt(i)) || ''; - }).replace(/\{(\d)\}/g, function (_, i) { - return e.extract[parseInt(i)] || ''; - }).replace(/\{current\}/, e.extract[1].slice(0, e.column) + '' + - e.extract[1].slice(e.column) + ''); - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #ee4444;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.ctx {', - 'color: #dd4444;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); - - if (less.env == 'development') { - timer = setInterval(function () { - if (document.body) { - if (document.getElementById(id)) { - document.body.replaceChild(elem, document.getElementById(id)); - } else { - document.body.insertBefore(elem, document.body.firstChild); - } - clearInterval(timer); - } - }, 10); - } -} - -})(window); diff --git a/awx/ui/static/lib/less/dist/less-1.1.6.min.js b/awx/ui/static/lib/less/dist/less-1.1.6.min.js deleted file mode 100644 index a30623b993..0000000000 --- a/awx/ui/static/lib/less/dist/less-1.1.6.min.js +++ /dev/null @@ -1,9 +0,0 @@ -// -// LESS - Leaner CSS v1.1.6 -// http://lesscss.org -// -// Copyright (c) 2009-2011, Alexis Sellier -// Licensed under the Apache 2.0 License. -// -(function(a,b){function c(b){return a.less[b.split("/")[1]]}function l(){var a=document.getElementsByTagName("style");for(var b=0;b0?d.firstChild.nodeValue!==a.nodeValue&&d.replaceChild(a,d.firstChild):d.appendChild(a)})(document.createTextNode(a));c&&g&&(t("saving "+e+" to cache."),g.setItem(e,a),g.setItem(e+":timestamp",c))}function q(a,b,c,e){function i(b,c,d){b.status>=200&&b.status<300?c(b.responseText,b.getResponseHeader("Last-Modified")):typeof d=="function"&&d(b.status,a)}var g=r(),h=f?!1:d.async;typeof g.overrideMimeType=="function"&&g.overrideMimeType("text/css"),g.open("GET",a,h),g.setRequestHeader("Accept",b||"text/x-less, text/css; q=0.9, */*; q=0.5"),g.send(null),f?g.status===0||g.status>=200&&g.status<300?c(g.responseText):e(g.status,a):h?g.onreadystatechange=function(){g.readyState==4&&i(g,c,e)}:i(g,c,e)}function r(){if(a.XMLHttpRequest)return new XMLHttpRequest;try{return new ActiveXObject("MSXML2.XMLHTTP.3.0")}catch(b){return t("browser doesn't support AJAX."),null}}function s(a){return a&&a.parentNode.removeChild(a)}function t(a){d.env=="development"&&typeof console!="undefined"&&console.log("less: "+a)}function u(a,b){var c="less-error-message:"+o(b),e=["
      ",'
    • {0}
      • ',"
    • {current}
      • ",'
    • {2}
      • ',"
    "].join("\n"),f=document.createElement("div"),g,h;f.id=c,f.className="less-error-message",h="

    "+(a.message||"There is an error in your .less file")+"

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a.toCSS(c)}).join("").trim()}).join(c.compress?",":g.length>3?",\n":", "),d.push(h,(c.compress?"{":" {\n ")+e.join(c.compress?"":"\n ")+(c.compress?"}":"\n}\n"))),d.push(f),d.join("")+(c.compress?"\n":"")},joinSelectors:function(a,b,c){for(var d=0;d0&&e.push(new a.Selector(g)),h.length>0&&f.push(new a.Selector(h));for(var l=0;l0&&(b.value=c[0]+(b.value.charAt(0)==="/"?b.value.slice(1):b.value)),this.value=b,this.paths=c)},b.URL.prototype={toCSS:function(){return"url("+(this.attrs?"data:"+this.attrs.mime+this.attrs.charset+this.attrs.base64+this.attrs.data:this.value.toCSS())+")"},eval:function(a){return this.attrs?this:new b.URL(this.value.eval(a),this.paths)}}}(c("../tree")),function(a){a.Value=function(a){this.value=a,this.is="value"},a.Value.prototype={eval:function(b){return this.value.length===1?this.value[0].eval(b):new a.Value(this.value.map(function(a){return a.eval(b)}))},toCSS:function(a){return this.value.map(function(b){return b.toCSS(a)}).join(a.compress?",":", ")}}}(c("../tree")),function(a){a.Variable=function(a,b){this.name=a,this.index=b},a.Variable.prototype={eval:function(b){var c,d,e=this.name;e.indexOf("@@")==0&&(e="@"+(new a.Variable(e.slice(1))).eval(b).value);if(c=a.find(b.frames,function(a){if(d=a.variable(e))return d.value.eval(b)}))return c;throw{message:"variable "+e+" is undefined",index:this.index}}}}(c("../tree")),c("./tree").find=function(a,b){for(var c=0,d;c1?"["+a.value.map(function(a){return a.toCSS(!1)}).join(", ")+"]":a.toCSS(!1)};var f=location.protocol==="file:"||location.protocol==="chrome:"||location.protocol==="chrome-extension:"||location.protocol==="resource:";d.env=d.env||(location.hostname=="127.0.0.1"||location.hostname=="0.0.0.0"||location.hostname=="localhost"||location.port.length>0||f?"development":"production"),d.async=!1,d.poll=d.poll||(f?1e3:1500),d.watch=function(){return this.watchMode=!0},d.unwatch=function(){return this.watchMode=!1},d.env==="development"?(d.optimization=0,/!watch/.test(location.hash)&&d.watch(),d.watchTimer=setInterval(function(){d.watchMode&&m(function(a,b,c){a&&p(a.toCSS(),b,c.lastModified)})},d.poll)):d.optimization=3;var g;try{g=typeof a.localStorage=="undefined"?null:a.localStorage}catch(h){g=null}var i=document.getElementsByTagName("link"),j=/^text\/(x-)?less$/;d.sheets=[];for(var k=0;k>> 0; - for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - if (typeof(window) === 'undefined') { less = {} } - else { less = window.less = {} } - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'node'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - mime: env && env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (e, root) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - that.files[path] = root; // Store the root - - if (e && !that.error) { that.error = e } - callback(e, root); - - if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, c, index, endIndex, k, mem; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - mem = i += length; - endIndex = i + chunks[j].length - length; - - while (i < endIndex) { - c = input.charCodeAt(i); - if (! (c === 32 || c === 10 || c === 9)) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - throw { index: i, type: type || 'Syntax', message: msg }; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - function getLocation(index) { - for (var n = index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - return { line: index ? (input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function LessError(e, env) { - var lines = input.split('\n'), - loc = getLocation(e.index), - line = loc.line, - col = loc.column; - - this.type = e.type || 'SyntaxError'; - this.message = e.message; - this.filename = e.filename || env.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call) + 1); - this.callExtract = lines[getLocation(e.call)]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - chunks = []; - input = str.replace(/\r\n/g, '\n'); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /[^"'`\{\}\/\(\)]+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - level = 0, - match, - chunk = chunks[0], - inParam, - inString; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = i; - - if (!inString && !inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - if (c === '{' && !inString && !inParam) { level ++; - chunk.push(c); - } else if (c === '}' && !inString && !inParam) { level --; - chunk.push(c); - chunks[++j] = chunk = []; - } else if (c === '(' && !inString && !inParam) { - chunk.push(c); - inParam = true; - } else if (c === ')' && !inString && inParam) { - chunk.push(c); - inParam = false; - } else { - if (c === '"' || c === "'" || c === '`') { - if (! inString) { - inString = c; - } else { - inString = inString === c ? false : inString; - } - } - chunk.push(c); - } - } - if (level > 0) { - throw { - type: 'Syntax', - message: "Missing closing `}`", - filename: env.filename - }; - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = []; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false }); - } catch (e) { - throw new(LessError)(e, env); - } - - if (parser.imports.error) { throw parser.imports.error } - - if (options.yuicompress && less.mode === 'node') { - return require('./cssmin').compressor.cssmin(css); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function () { callback(error, root) }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, args, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1].toLowerCase(); - - if (name === 'url') { return null } - else { i += name.length } - - if (name === 'alpha') { return $(this.alpha) } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - dataURI: function () { - var obj; - - if ($(/^data:/)) { - obj = {}; - obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; - obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; - obj.base64 = $(/^;\s*base64/) || ''; - obj.data = $(/^,\s*[^)]+/); - - if (obj.data) { return obj } - } - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|rem|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i), important = false; - - if (s !== '.' && s !== '#') { return } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - $('(') && (args = $(this.entities.arguments)) && $(')'); - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, important); - } - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { - name = match[1]; - - while (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - value = expect(this.expression, 'expected expression'); - params.push({ name: param.name, value: value }); - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - if (! $(',')) { break } - } - expect(')'); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || - $('*') || $(this.attribute) || $(/^\([^)@]+\)/); - - if (! e) { - $('(') && (v = $(this.entities.variable)) && $(')') && (e = new(tree.Paren)(v)); - } - - if (e) { return new(tree.Element)(c, e, i) } - - if (c.value && c.value.charAt(0) === '&') { - return new(tree.Element)(c, null, i); - } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~') { - i++; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(c); - } else if (c === '&') { - match = '&'; - i++; - if(input.charAt(i) === ' ') { - match = '& '; - } - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(match); - } else if (c === ':' && input.charAt(i + 1) === ':') { - i += 2; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)('::'); - } else if (input.charAt(i - 1) === ' ') { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match; - save(); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - return new(tree.Ruleset)(selectors, rules); - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features; - if ($(/^@import\s+/) && - (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - return new(tree.Import)(path, imports, features); - } - } - }, - - mediaFeature: function () { - var nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.entity); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var f, features = []; - while (f = $(this.mediaFeature)) { - features.push(f); - if (! $(',')) { break } - } - return features.length > 0 ? features : null; - }, - - media: function () { - var features; - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - return new(tree.Directive)('@media', rules, features); - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, types, e, nodes; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } else if (name = $(/^@page|@keyframes/) || $(/^@(?:-webkit-|-moz-|-o-|-ms-)[a-z0-9-]+/)) { - types = ($(/^[^{]+/) || '').trim(); - if (rules = $(this.block)) { - return new(tree.Directive)(name + " " + types, rules); - } - } else if (name = $(/^@[-a-z]+/)) { - if (name === '@font-face') { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (path.charAt(0) !== '/' && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n) { - return this._math('round', n); - }, - ceil: function (n) { - return this._math('ceil', n); - }, - floor: function (n) { - return this._math('floor', n); - }, - _math: function (fn, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math[fn](number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math[fn](n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False; - }, - ispercentage: function (n) { - return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False; - }, - isem: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index) { - this.name = name; - this.args = args; - this.index = index; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype.eval = function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - }, - - // TODO: Perform unit conversion before comparing - compare: function (other) { - if (other instanceof tree.Dimension) { - if (other.value > this.value) { - return -1; - } else if (other.value < this.value) { - return 1; - } else { - return 0; - } - } else { - return -1; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value, features) { - this.name = name; - this.features = features && new(tree.Value)(features); - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.ruleset) { - this.ruleset.root = true; - return this.name + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - this.features = this.features && this.features.eval(env); - env.frames.unshift(this); - this.ruleset = this.ruleset && this.ruleset.eval(env); - env.frames.shift(); - return this; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype.eval = function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); -}; -tree.Element.prototype.toCSS = function (env) { - return this.combinator.toCSS(env || {}) + (this.value.toCSS ? this.value.toCSS(env) : this.value); -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else if (value === '& ') { - this.value = '& '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - '&' : '', - '& ' : ' ', - ':' : ' :', - '::': '::', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports, features) { - var that = this; - - this._path = path; - this.features = features && new(tree.Value)(features); - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css(\?.*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (e, root) { - that.root = root; - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - return "@import " + this._path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return this.features ? new(tree.Directive)('@media', ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.important = important; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, args, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(args, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments, this.important).rules); - match = true; - } catch (e) { - throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; - } - } - } - if (match) { - return rules; - } else { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index }; - } - } - } - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index }; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - evalParams: function (env, args) { - var frame = new(tree.Ruleset)(null, []); - - for (var i = 0, val; i < this.params.length; i++) { - if (this.params[i].name) { - if (val = (args && args[i]) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - return frame; - }, - eval: function (env, args, important) { - var frame = this.evalParams(env, args), context, _arguments = [], rules; - - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push(args[i] || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.rules.map(function (r) { - return new(tree.Rule)(r.name, r.value, '!important', r.index); - }) : this.rules.slice(0); - - return new(tree.Ruleset)(null, rules).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (argsLength < this.required) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - if (this.condition && !this.condition.eval({ - frames: [this.evalParams(env, args)].concat(env.frames) - })) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - toCSS: function (env) { - return '(' + this.value.toCSS(env) + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return ('value' in v) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, - this.value.eval(context), - this.important, - this.index, this.inline); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0)); - - ruleset.root = this.root; - ruleset.allowImports = this.allowImports; - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - rule; - - if (! this.root) { - if (context.length === 0) { - paths = this.selectors.map(function (s) { return [s] }); - } else { - this.joinSelectors(paths, context, this.selectors); - } - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); - css.push(selector, - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - var before = [], after = [], beforeElements = [], - afterElements = [], hasParentSelector = false, el; - - for (var i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.combinator.value.charAt(0) === '&') { - hasParentSelector = true; - } - if (hasParentSelector) afterElements.push(el); - else beforeElements.push(el); - } - - if (! hasParentSelector) { - afterElements = beforeElements; - beforeElements = []; - } - - if (beforeElements.length > 0) { - before.push(new(tree.Selector)(beforeElements)); - } - - if (afterElements.length > 0) { - after.push(new(tree.Selector)(afterElements)); - } - - for (var c = 0; c < context.length; c++) { - paths.push(before.concat(context[c]).concat(after)); - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; - if (this.elements[0].combinator.value === "") { - this.elements[0].combinator.value = ' '; - } -}; -tree.Selector.prototype.match = function (other) { - var len = this.elements.length, - olen = other.elements.length, - max = Math.min(len, olen); - - if (len < olen) { - return false; - } else { - for (var i = 0; i < max; i++) { - if (this.elements[i].value !== other.elements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.eval = function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - })); -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - return this._css = this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, paths) { - if (val.data) { - this.attrs = val; - } else { - // Add the base path if the URL is relative and we are in the browser - if (typeof(window) !== 'undefined' && !/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(val.value) && paths.length > 0) { - val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - this.value = val; - this.paths = paths; - } -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data - : this.value.toCSS()) + ")"; - }, - eval: function (ctx) { - return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index) { this.name = name, this.index = index }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { message: "variable " + name + " is undefined", - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -// -// browser.js - client-side engine -// - -var isFileProtocol = (location.protocol === 'file:' || - location.protocol === 'chrome:' || - location.protocol === 'chrome-extension:' || - location.protocol === 'resource:'); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 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sheet.href.replace(/\?.*$/, '') : ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If the stylesheet doesn't exist, create a new node - if ((css = document.getElementById(id)) === null) { - css = document.createElement('style'); - css.type = 'text/css'; - css.media = sheet.media || 'screen'; - css.id = id; - document.getElementsByTagName('head')[0].appendChild(css); - } - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - (function (node) { - if (css.childNodes.length > 0) { - if (css.firstChild.nodeValue !== node.nodeValue) { - css.replaceChild(node, css.firstChild); - } - } else { - css.appendChild(node); - } - })(document.createTextNode(styles)); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? 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- for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - if (typeof(window) === 'undefined') { less = {} } - else { less = window.less = {} } - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'node'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - contents: {}, // Holds the imported file contents - mime: env && env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (e, root, contents) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - that.files[path] = root; // Store the root - that.contents[path] = contents; - - if (e && !that.error) { that.error = e } - callback(e, root); - - if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, c, index, endIndex, k, mem; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - mem = i += length; - endIndex = i + chunks[j].length - length; - - while (i < endIndex) { - c = input.charCodeAt(i); - if (! (c === 32 || c === 10 || c === 9)) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - throw { index: i, type: type || 'Syntax', message: msg }; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - function getInput(e, env) { - if (e.filename && env.filename && (e.filename !== env.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, input) { - for (var n = index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input) + 1); - this.callExtract = lines[getLocation(e.call, input)]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - chunks = []; - input = str.replace(/\r\n/g, '\n'); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /[^"'`\{\}\/\(\)]+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - level = 0, - match, - chunk = chunks[0], - inParam, - inString; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = i; - - if (!inString && !inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - if (c === '{' && !inString && !inParam) { level ++; - chunk.push(c); - } else if (c === '}' && !inString && !inParam) { level --; - chunk.push(c); - chunks[++j] = chunk = []; - } else if (c === '(' && !inString && !inParam) { - chunk.push(c); - inParam = true; - } else if (c === ')' && !inString && inParam) { - chunk.push(c); - inParam = false; - } else { - if (c === '"' || c === "'" || c === '`') { - if (! inString) { - inString = c; - } else { - inString = inString === c ? false : inString; - } - } - chunk.push(c); - } - } - if (level > 0) { - throw { - type: 'Syntax', - message: "Missing closing `}`", - filename: env.filename - }; - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = [], importError; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false }); - } catch (e) { - throw new(LessError)(e, env); - } - - if ((importError = parser.imports.error)) { // Check if there was an error during importing - if (importError instanceof LessError) throw importError; - else throw new(LessError)(importError, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('./cssmin').compressor.cssmin(css); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function () { callback(error, root) }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, args, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1].toLowerCase(); - - if (name === 'url') { return null } - else { i += name.length } - - if (name === 'alpha') { return $(this.alpha) } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index, env.filename) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - dataURI: function () { - var obj; - - if ($(/^data:/)) { - obj = {}; - obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; - obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; - obj.base64 = $(/^;\s*base64/) || ''; - obj.data = $(/^,\s*[^)]+/); - - if (obj.data) { return obj } - } - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.filename); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|rem|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i), important = false; - - if (s !== '.' && s !== '#') { return } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - $('(') && (args = $(this.entities.arguments)) && $(')'); - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.filename, important); - } - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { - name = match[1]; - - while (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - value = expect(this.expression, 'expected expression'); - params.push({ name: param.name, value: value }); - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - if (! $(',')) { break } - } - expect(')'); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || - $('*') || $(this.attribute) || $(/^\([^)@]+\)/); - - if (! e) { - $('(') && (v = $(this.entities.variable)) && $(')') && (e = new(tree.Paren)(v)); - } - - if (e) { return new(tree.Element)(c, e, i) } - - if (c.value && c.value.charAt(0) === '&') { - return new(tree.Element)(c, null, i); - } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~') { - i++; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(c); - } else if (c === '&') { - match = '&'; - i++; - if(input.charAt(i) === ' ') { - match = '& '; - } - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(match); - } else if (c === ':' && input.charAt(i + 1) === ':') { - i += 2; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)('::'); - } else if (input.charAt(i - 1) === ' ') { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match; - save(); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - return new(tree.Ruleset)(selectors, rules); - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - if ($(/^@import\s+/) && - (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - return new(tree.Import)(path, imports, features, index); - } - } - }, - - mediaFeature: function () { - var nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.entity); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var f, features = []; - while (f = $(this.mediaFeature)) { - features.push(f); - if (! $(',')) { break } - } - return features.length > 0 ? features : null; - }, - - media: function () { - var features; - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - return new(tree.Directive)('@media', rules, features); - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, types, e, nodes; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } else if (name = $(/^@page|@keyframes/) || $(/^@(?:-webkit-|-moz-|-o-|-ms-)[a-z0-9-]+/)) { - types = ($(/^[^{]+/) || '').trim(); - if (rules = $(this.block)) { - return new(tree.Directive)(name + " " + types, rules); - } - } else if (name = $(/^@[-a-z]+/)) { - if (name === '@font-face') { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (path.charAt(0) !== '/' && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n) { - return this._math('round', n); - }, - ceil: function (n) { - return this._math('ceil', n); - }, - floor: function (n) { - return this._math('floor', n); - }, - _math: function (fn, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math[fn](number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math[fn](n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False; - }, - ispercentage: function (n) { - return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False; - }, - isem: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, filename) { - this.name = name; - this.args = args; - this.index = index; - this.filename = filename; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.filename }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype.eval = function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - }, - - // TODO: Perform unit conversion before comparing - compare: function (other) { - if (other instanceof tree.Dimension) { - if (other.value > this.value) { - return -1; - } else if (other.value < this.value) { - return 1; - } else { - return 0; - } - } else { - return -1; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value, features) { - this.name = name; - this.features = features && new(tree.Value)(features); - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.ruleset) { - this.ruleset.root = true; - return this.name + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - this.features = this.features && this.features.eval(env); - env.frames.unshift(this); - this.ruleset = this.ruleset && this.ruleset.eval(env); - env.frames.shift(); - return this; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype.eval = function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); -}; -tree.Element.prototype.toCSS = function (env) { - return this.combinator.toCSS(env || {}) + (this.value.toCSS ? this.value.toCSS(env) : this.value); -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else if (value === '& ') { - this.value = '& '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - '&' : '', - '& ' : ' ', - ':' : ' :', - '::': '::', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports, features, index) { - var that = this; - - this.index = index; - this._path = path; - this.features = features && new(tree.Value)(features); - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css(\?.*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (e, root) { - if (e) { e.index = index } - that.root = root || new(tree.Ruleset)([], []); - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - return "@import " + this._path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return this.features ? new(tree.Directive)('@media', ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, filename, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.filename = filename; - this.important = important; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, args, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(args, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments, this.important).rules); - match = true; - } catch (e) { - throw { message: e.message, index: e.index, filename: this.filename, stack: e.stack, call: this.index }; - } - } - } - if (match) { - return rules; - } else { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index, filename: this.filename }; - } - } - } - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.filename }; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - evalParams: function (env, args) { - var frame = new(tree.Ruleset)(null, []); - - for (var i = 0, val; i < this.params.length; i++) { - if (this.params[i].name) { - if (val = (args && args[i]) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - return frame; - }, - eval: function (env, args, important) { - var frame = this.evalParams(env, args), context, _arguments = [], rules; - - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push(args[i] || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.rules.map(function (r) { - return new(tree.Rule)(r.name, r.value, '!important', r.index); - }) : this.rules.slice(0); - - return new(tree.Ruleset)(null, rules).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (argsLength < this.required) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - if (this.condition && !this.condition.eval({ - frames: [this.evalParams(env, args)].concat(env.frames) - })) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - toCSS: function (env) { - return '(' + this.value.toCSS(env) + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return ('value' in v) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, - this.value.eval(context), - this.important, - this.index, this.inline); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0)); - - ruleset.root = this.root; - ruleset.allowImports = this.allowImports; - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - rule; - - if (! this.root) { - if (context.length === 0) { - paths = this.selectors.map(function (s) { return [s] }); - } else { - this.joinSelectors(paths, context, this.selectors); - } - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); - css.push(selector, - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - var before = [], after = [], beforeElements = [], - afterElements = [], hasParentSelector = false, el; - - for (var i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.combinator.value.charAt(0) === '&') { - hasParentSelector = true; - } - if (hasParentSelector) afterElements.push(el); - else beforeElements.push(el); - } - - if (! hasParentSelector) { - afterElements = beforeElements; - beforeElements = []; - } - - if (beforeElements.length > 0) { - before.push(new(tree.Selector)(beforeElements)); - } - - if (afterElements.length > 0) { - after.push(new(tree.Selector)(afterElements)); - } - - for (var c = 0; c < context.length; c++) { - paths.push(before.concat(context[c]).concat(after)); - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; - if (this.elements[0].combinator.value === "") { - this.elements[0].combinator.value = ' '; - } -}; -tree.Selector.prototype.match = function (other) { - var len = this.elements.length, - olen = other.elements.length, - max = Math.min(len, olen); - - if (len < olen) { - return false; - } else { - for (var i = 0; i < max; i++) { - if (this.elements[i].value !== other.elements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.eval = function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - })); -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - return this._css = this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, paths) { - if (val.data) { - this.attrs = val; - } else { - // Add the base path if the URL is relative and we are in the browser - if (typeof(window) !== 'undefined' && !/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(val.value) && paths.length > 0) { - val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - this.value = val; - this.paths = paths; - } -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data - : this.value.toCSS()) + ")"; - }, - eval: function (ctx) { - return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.file, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -// -// browser.js - client-side engine -// - -var isFileProtocol = (location.protocol === 'file:' || - location.protocol === 'chrome:' || - location.protocol === 'chrome-extension:' || - location.protocol === 'resource:'); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -// -// Watch mode -// -less.watch = function () { return this.watchMode = true }; -less.unwatch = function () { return this.watchMode = false }; - -if (less.env === 'development') { - less.optimization = 0; - - if (/!watch/.test(location.hash)) { - less.watch(); - } - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (e, root, _, sheet, env) { - if (root) { - createCSS(root.toCSS(), sheet, env.lastModified); - } - }); - } - }, less.poll); -} else { - less.optimization = 3; -} - -var cache; - -try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; -} catch (_) { - cache = null; -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (e, root, _, sheet, env) { - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) { - var css = tree.toCSS(); - var style = styles[i]; - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - var url = window.location.href.replace(/[#?].*$/, ''); - var href = sheet.href.replace(/\?.*$/, ''); - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - - // Stylesheets in IE don't always return the full path - if (! /^(https?|file):/.test(href)) { - if (href.charAt(0) == "/") { - href = window.location.protocol + "//" + window.location.host + href; - } else { - href = url.slice(0, url.lastIndexOf('/') + 1) + href; - } - } - var filename = href.match(/([^\/]+)$/)[1]; - - xhr(sheet.href, sheet.type, function (data, lastModified) { - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, sheet, { local: true, remaining: remaining }); - } else { - // Use remote copy (re-parse) - try { - new(less.Parser)({ - optimization: less.optimization, - paths: [href.replace(/[\w\.-]+$/, '')], - mime: sheet.type, - filename: filename - }).parse(data, function (e, root) { - if (e) { return error(e, href) } - try { - callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining }); - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } catch (e) { - error(e, href); - } - }); - } catch (e) { - error(e, href); - } - } - }, function (status, url) { - throw new(Error)("Couldn't load " + url + " (" + status + ")"); - }); -} - -function extractId(href) { - return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\?.*$/, '' ) // Remove query - .replace(/\.[^\.\/]+$/, '' ) // Remove file extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - var css; - - // Strip the query-string - var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If the stylesheet doesn't exist, create a new node - if ((css = document.getElementById(id)) === null) { - css = document.createElement('style'); - css.type = 'text/css'; - css.media = sheet.media || 'screen'; - css.id = id; - document.getElementsByTagName('head')[0].appendChild(css); - } - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - (function (node) { - if (css.childNodes.length > 0) { - if (css.firstChild.nodeValue !== node.nodeValue) { - css.replaceChild(node, css.firstChild); - } - } else { - css.appendChild(node); - } - })(document.createTextNode(styles)); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? false : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - if (isFileProtocol) { - if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new(XMLHttpRequest); - } else { - try { - return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX."); - return null; - } - } -} - -function removeNode(node) { - return node && node.parentNode.removeChild(node); -} - -function log(str) { - if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } -} - -function error(e, href) { - var id = 'less-error-message:' + extractId(href); - var template = '
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- for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - if (typeof(window) === 'undefined') { less = {} } - else { less = window.less = {} } - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'node'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - contents: {}, // Holds the imported file contents - mime: env && env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (e, root, contents) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - that.files[path] = root; // Store the root - that.contents[path] = contents; - - if (e && !that.error) { that.error = e } - callback(e, root); - - if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, c, index, endIndex, k, mem; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - mem = i += length; - endIndex = i + chunks[j].length - length; - - while (i < endIndex) { - c = input.charCodeAt(i); - if (! (c === 32 || c === 10 || c === 9)) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - throw { index: i, type: type || 'Syntax', message: msg }; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - function basename(pathname) { - if (less.mode === 'node') { - return require('path').basename(pathname); - } else { - return pathname.match(/[^\/]+$/)[0]; - } - } - - function getInput(e, env) { - if (e.filename && env.filename && (e.filename !== env.filename)) { - return parser.imports.contents[basename(e.filename)]; - } else { - return input; - } - } - - function getLocation(index, input) { - for (var n = index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input) + 1); - this.callExtract = lines[getLocation(e.call, input)]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /[^"'`\{\}\/\(\)\\]+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`\\\r\n]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - switch (c) { - case '{': if (! inParam) { level ++; chunk.push(c); break } - case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } - case '(': if (! inParam) { inParam = true; chunk.push(c); break } - case ')': if ( inParam) { inParam = false; chunk.push(c); break } - default: chunk.push(c); - } - } - if (level > 0) { - error = new(LessError)({ - index: i, - type: 'Parse', - message: "missing closing `}`", - filename: env.filename - }, env); - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - if (error) { - return callback(error); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = [], importError; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false }); - } catch (e) { - throw new(LessError)(e, env); - } - - if ((importError = parser.imports.error)) { // Check if there was an error during importing - if (importError instanceof LessError) throw importError; - else throw new(LessError)(importError, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('./cssmin').compressor.cssmin(css); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function () { callback(error, root) }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, args, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1].toLowerCase(); - - if (name === 'url') { return null } - else { i += name.length } - - if (name === 'alpha') { return $(this.alpha) } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index, env.filename) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - dataURI: function () { - var obj; - - if ($(/^data:/)) { - obj = {}; - obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; - obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; - obj.base64 = $(/^;\s*base64/) || ''; - obj.data = $(/^,\s*[^)]+/); - - if (obj.data) { return obj } - } - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.filename); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|rem|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i), important = false; - - if (s !== '.' && s !== '#') { return } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - $('(') && (args = $(this.entities.arguments)) && $(')'); - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.filename, important); - } - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { - name = match[1]; - - while (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - value = expect(this.expression, 'expected expression'); - params.push({ name: param.name, value: value }); - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - if (! $(',')) { break } - } - expect(')'); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || - $('*') || $(this.attribute) || $(/^\([^)@]+\)/); - - if (! e) { - $('(') && (v = $(this.entities.variable)) && $(')') && (e = new(tree.Paren)(v)); - } - - if (e) { return new(tree.Element)(c, e, i) } - - if (c.value && c.value.charAt(0) === '&') { - return new(tree.Element)(c, null, i); - } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~') { - i++; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(c); - } else if (c === '&') { - match = '&'; - i++; - if(input.charAt(i) === ' ') { - match = '& '; - } - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(match); - } else if (c === ':' && input.charAt(i + 1) === ':') { - i += 2; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)('::'); - } else if (input.charAt(i - 1) === ' ') { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match; - save(); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - return new(tree.Ruleset)(selectors, rules); - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - if ($(/^@import\s+/) && - (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - return new(tree.Import)(path, imports, features, index); - } - } - }, - - mediaFeature: function () { - var nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.entity); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var f, features = []; - while (f = $(this.mediaFeature)) { - features.push(f); - if (! $(',')) { break } - } - return features.length > 0 ? features : null; - }, - - media: function () { - var features; - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - return new(tree.Directive)('@media', rules, features); - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, types, e, nodes; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } else if (name = $(/^@page|@keyframes/) || $(/^@(?:-webkit-|-moz-|-o-|-ms-)[a-z0-9-]+/)) { - types = ($(/^[^{]+/) || '').trim(); - if (rules = $(this.block)) { - return new(tree.Directive)(name + " " + types, rules); - } - } else if (name = $(/^@[-a-z]+/)) { - if (name === '@font-face') { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (!/^([a-z]+:)?\//.test(path) && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ href: path, title: path, type: env.mime }, function (e) { - if (e && typeof(env.errback) === "function") { - env.errback.call(null, path, paths, callback, env); - } else { - callback.apply(null, arguments); - } - }, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n) { - return this._math('round', n); - }, - ceil: function (n) { - return this._math('ceil', n); - }, - floor: function (n) { - return this._math('floor', n); - }, - _math: function (fn, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math[fn](number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math[fn](n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False; - }, - ispercentage: function (n) { - return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False; - }, - isem: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, filename) { - this.name = name; - this.args = args; - this.index = index; - this.filename = filename; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.filename }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype.eval = function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - }, - - // TODO: Perform unit conversion before comparing - compare: function (other) { - if (other instanceof tree.Dimension) { - if (other.value > this.value) { - return -1; - } else if (other.value < this.value) { - return 1; - } else { - return 0; - } - } else { - return -1; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value, features) { - this.name = name; - this.features = features && new(tree.Value)(features); - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.ruleset) { - this.ruleset.root = true; - return this.name + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - this.features = this.features && this.features.eval(env); - env.frames.unshift(this); - this.ruleset = this.ruleset && this.ruleset.eval(env); - env.frames.shift(); - return this; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype.eval = function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); -}; -tree.Element.prototype.toCSS = function (env) { - return this.combinator.toCSS(env || {}) + (this.value.toCSS ? this.value.toCSS(env) : this.value); -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else if (value === '& ') { - this.value = '& '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - '&' : '', - '& ' : ' ', - ':' : ' :', - '::': '::', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports, features, index) { - var that = this; - - this.index = index; - this._path = path; - this.features = features && new(tree.Value)(features); - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css(\?.*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (e, root) { - if (e) { e.index = index } - that.root = root || new(tree.Ruleset)([], []); - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - return "@import " + this._path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return this.features ? new(tree.Directive)('@media', ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, filename, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.filename = filename; - this.important = important; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, args, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(args, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments, this.important).rules); - match = true; - } catch (e) { - throw { message: e.message, index: e.index, filename: this.filename, stack: e.stack, call: this.index }; - } - } - } - if (match) { - return rules; - } else { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index, filename: this.filename }; - } - } - } - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.filename }; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - evalParams: function (env, args) { - var frame = new(tree.Ruleset)(null, []); - - for (var i = 0, val; i < this.params.length; i++) { - if (this.params[i].name) { - if (val = (args && args[i]) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - return frame; - }, - eval: function (env, args, important) { - var frame = this.evalParams(env, args), context, _arguments = [], rules; - - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push(args[i] || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.rules.map(function (r) { - return new(tree.Rule)(r.name, r.value, '!important', r.index); - }) : this.rules.slice(0); - - return new(tree.Ruleset)(null, rules).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (argsLength < this.required) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - if (this.condition && !this.condition.eval({ - frames: [this.evalParams(env, args)].concat(env.frames) - })) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - toCSS: function (env) { - return '(' + this.value.toCSS(env) + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return ('value' in v) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, - this.value.eval(context), - this.important, - this.index, this.inline); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0)); - - ruleset.root = this.root; - ruleset.allowImports = this.allowImports; - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - rule; - - if (! this.root) { - if (context.length === 0) { - paths = this.selectors.map(function (s) { return [s] }); - } else { - this.joinSelectors(paths, context, this.selectors); - } - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join( env.compress ? ',' : ',\n'); - - css.push(selector, - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - var before = [], after = [], beforeElements = [], - afterElements = [], hasParentSelector = false, el; - - for (var i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.combinator.value.charAt(0) === '&') { - hasParentSelector = true; - } - if (hasParentSelector) afterElements.push(el); - else beforeElements.push(el); - } - - if (! hasParentSelector) { - afterElements = beforeElements; - beforeElements = []; - } - - if (beforeElements.length > 0) { - before.push(new(tree.Selector)(beforeElements)); - } - - if (afterElements.length > 0) { - after.push(new(tree.Selector)(afterElements)); - } - - for (var c = 0; c < context.length; c++) { - paths.push(before.concat(context[c]).concat(after)); - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; - if (this.elements[0].combinator.value === "") { - this.elements[0].combinator.value = ' '; - } -}; -tree.Selector.prototype.match = function (other) { - var len = this.elements.length, - olen = other.elements.length, - max = Math.min(len, olen); - - if (len < olen) { - return false; - } else { - for (var i = 0; i < max; i++) { - if (this.elements[i].value !== other.elements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.eval = function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - })); -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - return this._css = this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, paths) { - if (val.data) { - this.attrs = val; - } else { - // Add the base path if the URL is relative and we are in the browser - if (typeof(window) !== 'undefined' && !/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(val.value) && paths.length > 0) { - val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - this.value = val; - this.paths = paths; - } -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data - : this.value.toCSS()) + ")"; - }, - eval: function (ctx) { - return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.file, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -// -// browser.js - client-side engine -// - -var isFileProtocol = (location.protocol === 'file:' || - location.protocol === 'chrome:' || - location.protocol === 'chrome-extension:' || - location.protocol === 'resource:'); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -// -// Watch mode -// -less.watch = function () { return this.watchMode = true }; -less.unwatch = function () { return this.watchMode = false }; - -if (less.env === 'development') { - less.optimization = 0; - - if (/!watch/.test(location.hash)) { - less.watch(); - } - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (e, root, _, sheet, env) { - if (root) { - createCSS(root.toCSS(), sheet, env.lastModified); - } - }); - } - }, less.poll); -} else { - less.optimization = 3; -} - -var cache; - -try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; -} catch (_) { - cache = null; -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (e, root, _, sheet, env) { - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) { - var css = tree.toCSS(); - var style = styles[i]; - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - var url = window.location.href.replace(/[#?].*$/, ''); - var href = sheet.href.replace(/\?.*$/, ''); - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - - // Stylesheets in IE don't always return the full path - if (! /^(https?|file):/.test(href)) { - if (href.charAt(0) == "/") { - href = window.location.protocol + "//" + window.location.host + href; - } else { - href = url.slice(0, url.lastIndexOf('/') + 1) + href; - } - } - var filename = href.match(/([^\/]+)$/)[1]; - - xhr(sheet.href, sheet.type, function (data, lastModified) { - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, null, data, sheet, { local: true, remaining: remaining }); - } else { - // Use remote copy (re-parse) - try { - new(less.Parser)({ - optimization: less.optimization, - paths: [href.replace(/[\w\.-]+$/, '')], - mime: sheet.type, - filename: filename - }).parse(data, function (e, root) { - if (e) { return error(e, href) } - try { - callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining }); - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } catch (e) { - error(e, href); - } - }); - } catch (e) { - error(e, href); - } - } - }, function (status, url) { - throw new(Error)("Couldn't load " + url + " (" + status + ")"); - }); -} - -function extractId(href) { - return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\?.*$/, '' ) // Remove query - .replace(/\.[^\.\/]+$/, '' ) // Remove file extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - var css; - - // Strip the query-string - var href = sheet.href ? 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- for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - if (typeof(window) === 'undefined') { less = {} } - else { less = window.less = {} } - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'node'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - contents: {}, // Holds the imported file contents - mime: env && env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (e, root, contents) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - that.files[path] = root; // Store the root - that.contents[path] = contents; - - if (e && !that.error) { that.error = e } - callback(e, root); - - if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, c, index, endIndex, k, mem; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - mem = i += length; - endIndex = i + chunks[j].length - length; - - while (i < endIndex) { - c = input.charCodeAt(i); - if (! (c === 32 || c === 10 || c === 9)) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - throw { index: i, type: type || 'Syntax', message: msg }; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - function basename(pathname) { - if (less.mode === 'node') { - return require('path').basename(pathname); - } else { - return pathname.match(/[^\/]+$/)[0]; - } - } - - function getInput(e, env) { - if (e.filename && env.filename && (e.filename !== env.filename)) { - return parser.imports.contents[basename(e.filename)]; - } else { - return input; - } - } - - function getLocation(index, input) { - for (var n = index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input).line + 1); - this.callExtract = lines[getLocation(e.call, input).line]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /[^"'`\{\}\/\(\)\\]+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`\\\r\n]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - switch (c) { - case '{': if (! inParam) { level ++; chunk.push(c); break } - case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } - case '(': if (! inParam) { inParam = true; chunk.push(c); break } - case ')': if ( inParam) { inParam = false; chunk.push(c); break } - default: chunk.push(c); - } - } - if (level > 0) { - error = new(LessError)({ - index: i, - type: 'Parse', - message: "missing closing `}`", - filename: env.filename - }, env); - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - if (error) { - return callback(error); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = [], importError; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false }); - } catch (e) { - throw new(LessError)(e, env); - } - - if ((importError = parser.imports.error)) { // Check if there was an error during importing - if (importError instanceof LessError) throw importError; - else throw new(LessError)(importError, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('./cssmin').compressor.cssmin(css); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function () { callback(error, root) }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, args, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1].toLowerCase(); - - if (name === 'url') { return null } - else { i += name.length } - - if (name === 'alpha') { return $(this.alpha) } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index, env.filename) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - dataURI: function () { - var obj; - - if ($(/^data:/)) { - obj = {}; - obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; - obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; - obj.base64 = $(/^;\s*base64/) || ''; - obj.data = $(/^,\s*[^)]+/); - - if (obj.data) { return obj } - } - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.filename); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|rem|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i), important = false; - - if (s !== '.' && s !== '#') { return } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - $('(') && (args = $(this.entities.arguments)) && $(')'); - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args || [], index, env.filename, important); - } - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { - name = match[1]; - - do { - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - variadic = true; - break; - } else if (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - value = expect(this.expression, 'expected expression'); - params.push({ name: param.name, value: value }); - } else if ($(/^\.{3}/)) { - params.push({ name: param.name, variadic: true }); - variadic = true; - break; - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - } else { - break; - } - } while ($(',')) - - expect(')'); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || - $('*') || $(this.attribute) || $(/^\([^)@]+\)/); - - if (! e) { - $('(') && (v = $(this.entities.variable)) && $(')') && (e = new(tree.Paren)(v)); - } - - if (e) { return new(tree.Element)(c, e, i) } - - if (c.value && c.value.charAt(0) === '&') { - return new(tree.Element)(c, null, i); - } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~') { - i++; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(c); - } else if (c === '&') { - match = '&'; - i++; - if(input.charAt(i) === ' ') { - match = '& '; - } - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(match); - } else if (input.charAt(i - 1) === ' ') { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - if ($('(')) { - sel = $(this.entity); - expect(')'); - return new(tree.Selector)([new(tree.Element)('', sel, i)]); - } - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match; - save(); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - return new(tree.Ruleset)(selectors, rules, env.strictImports); - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - if ($(/^@import\s+/) && - (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - return new(tree.Import)(path, imports, features, index); - } - } - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.entity); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules; - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - return new(tree.Media)(rules, features); - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, types, e, nodes; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } else if (name = $(/^@page|@keyframes/) || $(/^@(?:-webkit-|-moz-|-o-|-ms-)[a-z0-9-]+/)) { - types = ($(/^[^{]+/) || '').trim(); - if (rules = $(this.block)) { - return new(tree.Directive)(name + " " + types, rules); - } - } else if (name = $(/^@[-a-z]+/)) { - if (name === '@font-face') { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (!/^([a-z]+:)?\//.test(path) && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ href: path, title: path, type: env.mime }, function (e) { - if (e && typeof(env.errback) === "function") { - env.errback.call(null, path, paths, callback, env); - } else { - callback.apply(null, arguments); - } - }, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n) { - return this._math('round', n); - }, - ceil: function (n) { - return this._math('ceil', n); - }, - floor: function (n) { - return this._math('floor', n); - }, - _math: function (fn, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math[fn](number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math[fn](n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False; - }, - ispercentage: function (n) { - return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False; - }, - isem: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, filename) { - this.name = name; - this.args = args; - this.index = index; - this.filename = filename; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.filename }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype.eval = function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - }, - - // TODO: Perform unit conversion before comparing - compare: function (other) { - if (other instanceof tree.Dimension) { - if (other.value > this.value) { - return -1; - } else if (other.value < this.value) { - return 1; - } else { - return 0; - } - } else { - return -1; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value, features) { - this.name = name; - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - env.frames.unshift(this); - this.ruleset = this.ruleset && this.ruleset.eval(env); - env.frames.shift(); - return this; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype.eval = function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); -}; -tree.Element.prototype.toCSS = function (env) { - return this.combinator.toCSS(env || {}) + (this.value.toCSS ? this.value.toCSS(env) : this.value); -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else if (value === '& ') { - this.value = '& '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - '&' : '', - '& ' : ' ', - ':' : ' :', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports, features, index) { - var that = this; - - this.index = index; - this._path = path; - this.features = features && new(tree.Value)(features); - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css(\?.*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (e, root) { - if (e) { e.index = index } - that.root = root || new(tree.Ruleset)([], []); - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - return "@import " + this._path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.Media = function (value, features) { - var el = new(tree.Element)('&', null, 0), - selectors = [new(tree.Selector)([el])]; - - this.features = new(tree.Value)(features); - this.ruleset = new(tree.Ruleset)(selectors, value); - this.ruleset.allowImports = true; -}; -tree.Media.prototype = { - toCSS: function (ctx, env) { - var features = this.features.toCSS(env); - - this.ruleset.root = (ctx.length === 0 || ctx[0].multiMedia); - return '@media ' + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - }, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var blockIndex = env.mediaBlocks.length; - env.mediaPath.push(this); - env.mediaBlocks.push(this); - - var media = new(tree.Media)([], []); - media.features = this.features.eval(env); - - env.frames.unshift(this.ruleset); - media.ruleset = this.ruleset.eval(env); - env.frames.shift(); - - env.mediaBlocks[blockIndex] = media; - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env) - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var el = new(tree.Element)('&', null, 0); - var selectors = [new(tree.Selector)([el])]; - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, filename, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.filename = filename; - this.important = important; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, args, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(args, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments, this.important).rules); - match = true; - } catch (e) { - throw { message: e.message, index: this.index, filename: this.filename, stack: e.stack }; - } - } - } - if (match) { - return rules; - } else { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index, filename: this.filename }; - } - } - } - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.filename }; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - evalParams: function (env, args) { - var frame = new(tree.Ruleset)(null, []), varargs; - - for (var i = 0, val, name; i < this.params.length; i++) { - if (name = this.params[i].name) { - if (this.params[i].variadic && args) { - varargs = []; - for (var j = i; j < args.length; j++) { - varargs.push(args[j].eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else if (val = (args && args[i]) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(name, val.eval(env))); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - return frame; - }, - eval: function (env, args, important) { - var frame = this.evalParams(env, args), context, _arguments = [], rules, start; - - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push(args[i] || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.rules.map(function (r) { - return new(tree.Rule)(r.name, r.value, '!important', r.index); - }) : this.rules.slice(0); - - return new(tree.Ruleset)(null, rules).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (! this.variadic) { - if (argsLength < this.required) { return false } - if (argsLength > this.params.length) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - } - - if (this.condition && !this.condition.eval({ - frames: [this.evalParams(env, args)].concat(env.frames) - })) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - toCSS: function (env) { - return '(' + this.value.toCSS(env) + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return ('value' in v) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, - this.value.eval(context), - this.important, - this.index, this.inline); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - - ruleset.root = this.root; - ruleset.allowImports = this.allowImports; - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - rule; - - if (! this.root) { - if (context.length === 0) { - paths = this.selectors.map(function (s) { return [s] }); - } else { - this.joinSelectors(paths, context, this.selectors); - } - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive) || (rule instanceof tree.Media)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join( env.compress ? ',' : ',\n'); - - css.push(selector, - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - var before = [], after = [], beforeElements = [], - afterElements = [], hasParentSelector = false, el; - - for (var i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.combinator.value.charAt(0) === '&') { - hasParentSelector = true; - } - if (hasParentSelector) afterElements.push(el); - else beforeElements.push(el); - } - - if (! hasParentSelector) { - afterElements = beforeElements; - beforeElements = []; - } - - if (beforeElements.length > 0) { - before.push(new(tree.Selector)(beforeElements)); - } - - if (afterElements.length > 0) { - after.push(new(tree.Selector)(afterElements)); - } - - for (var c = 0; c < context.length; c++) { - paths.push(before.concat(context[c]).concat(after)); - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; - if (this.elements[0].combinator.value === "") { - this.elements[0].combinator.value = ' '; - } -}; -tree.Selector.prototype.match = function (other) { - var len = this.elements.length, - olen = other.elements.length, - max = Math.min(len, olen); - - if (len < olen) { - return false; - } else { - for (var i = 0; i < max; i++) { - if (this.elements[i].value !== other.elements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.eval = function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - })); -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - return this._css = this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, paths) { - if (val.data) { - this.attrs = val; - } else { - // Add the base path if the URL is relative and we are in the browser - if (typeof(window) !== 'undefined' && !/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(val.value) && paths.length > 0) { - val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - this.value = val; - this.paths = paths; - } -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data - : this.value.toCSS()) + ")"; - }, - eval: function (ctx) { - return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.file, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -// -// browser.js - client-side engine -// - -var isFileProtocol = (location.protocol === 'file:' || - location.protocol === 'chrome:' || - location.protocol === 'chrome-extension:' || - location.protocol === 'resource:'); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 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- for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - if (typeof(window) === 'undefined') { less = {} } - else { less = window.less = {} } - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'node'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed arround by reference. - var env = env || { }; - if (!env.contents) { env.contents={}; } // env.contents must be passed arround with top env - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - mime: env && env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (e, root) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - - var imported = path in that.files; - - that.files[path] = root; // Store the root - - if (e && !that.error) { that.error = e } - - callback(e, root, imported); - - if (that.queue.length === 0) { finish(e) } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - function isWhitespace(c) { - // Could change to \s? - var code = c.charCodeAt(0); - return code === 32 || code === 10 || code === 9; - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, index, k; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - endIndex = i + chunks[j].length, - mem = i += length; - - while (i < endIndex) { - if (! isWhitespace(input.charAt(i))) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - throw { index: i, type: type || 'Syntax', message: msg }; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - function getInput(e, env) { - if (e.filename && env.filename && (e.filename !== env.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, input) { - for (var n = index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function getFileName(e) { - if(less.mode === 'browser' || less.mode === 'rhino') - return e.filename; - else - return require('path').resolve(e.filename); - } - - function getDebugInfo(index, inputStream, e) { - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: getFileName(e) - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input).line + 1); - this.callExtract = lines[getLocation(e.call, input).line]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - switch (c) { - case '{': if (! inParam) { level ++; chunk.push(c); break } - case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } - case '(': if (! inParam) { inParam = true; chunk.push(c); break } - case ')': if ( inParam) { inParam = false; chunk.push(c); break } - default: chunk.push(c); - } - } - if (level > 0) { - error = new(LessError)({ - index: i, - type: 'Parse', - message: "missing closing `}`", - filename: env.filename - }, env); - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - if (error) { - return callback(error); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = [], importError; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false, dumpLineNumbers: env.dumpLineNumbers }); - } catch (e) { - throw new(LessError)(e, env); - } - - if ((importError = parser.imports.error)) { // Check if there was an error during importing - if (importError instanceof LessError) throw importError; - else throw new(LessError)(importError, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('./cssmin').compressor.cssmin(css); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function (e) { - if (e) callback(e); - else callback(null, root); - }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null } - else { i += name.length } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index, env.filename) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.ratio) || - $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.filename); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var name, curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.filename); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn|dpi|dpcm|dppx|rem|vw|vh|vmin|vm|ch)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A Ratio - // - // 16/9 - // - ratio: function () { - var value, c = input.charCodeAt(i); - if (c > 57 || c < 48) return; - - if (value = $(/^(\d+\/\d+)/)) { - return new(tree.Ratio)(value[1]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - save(); - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - - restore(); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args = [], arg, index = i, s = input.charAt(i), name, value, important = false; - - if (s !== '.' && s !== '#') { return } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - if ($('(')) { - while (arg = $(this.expression)) { - value = arg; - name = null; - - // Variable - if (arg.value.length == 1) { - var val = arg.value[0]; - if (val instanceof tree.Variable) { - if ($(':')) { - if (value = $(this.expression)) { - name = val.name; - } else { - throw new(Error)("Expected value"); - } - } - } - } - - args.push({ name: name, value: value }); - - if (! $(',')) { break } - } - if (! $(')')) throw new(Error)("Expected )"); - } - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.filename, important); - } - - restore(); - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - do { - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - variadic = true; - break; - } else if (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - value = expect(this.expression, 'expected expression'); - params.push({ name: param.name, value: value }); - } else if ($(/^\.{3}/)) { - params.push({ name: param.name, variadic: true }); - variadic = true; - break; - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - } else { - break; - } - } while ($(',')) - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^)@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(') && (v = ($(this.entities.variableCurly) || $(this.entities.variable))) && $(')')) { - e = new(tree.Paren)(v); - } - } - - if (e) { return new(tree.Element)(c, e, i) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~') { - i++; - while (input.charAt(i).match(/\s/)) { i++ } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - // depreciated, will be removed soon - if ($('(')) { - sel = $(this.entity); - expect(')'); - return new(tree.Selector)([new(tree.Element)('', sel, i)]); - } - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[A-Za-z][A-Za-z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^(?:[_A-Za-z0-9-]|\\.)+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match, debugInfo; - save(); - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) - ruleset.debugInfo = debugInfo; - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import(?:-(once))?\s+/); - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - return new(tree.Import)(path, imports, features, (dir[1] === 'once'), index); - } - } - - restore(); - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.entity); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features); - if(env.dumpLineNumbers) - media.debugInfo = debugInfo; - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, identifier, e, nodes, nonVendorSpecificName, - hasBlock, hasIdentifier; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - } - - if (hasIdentifier) { - name += " " + ($(/^[^{]+/) || '').trim(); - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else { - if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - - restore(); - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (!isWhitespace(input.charAt(i - 1)) && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-z0-9-]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (!/^([a-z-]+:)?\//.test(path) && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - // __ Now using the hack of passing a ref to top parser's content cache in the 1st arg. __ - loadStyleSheet({ href: path, title: path, type: env.mime, contents: env.contents }, function (e) { - if (e && typeof(env.errback) === "function") { - env.errback.call(null, path, paths, callback, env); - } else { - callback.apply(null, arguments); - } - }, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round((0.2126 * (color.rgb[0]/255) + - 0.7152 * (color.rgb[1]/255) + - 0.0722 * (color.rgb[2]/255)) - * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = threshold.value; - } - if (((0.2126 * (color.rgb[0]/255) + 0.7152 * (color.rgb[1]/255) + 0.0722 * (color.rgb[2]/255)) * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(number(n).toFixed(fraction), n.unit); - } else if (typeof(n) === 'number') { - return n.toFixed(fraction); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - ceil: function (n) { - return this._math('ceil', n); - }, - floor: function (n) { - return this._math('floor', n); - }, - _math: function (fn, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math[fn](number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math[fn](n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False; - }, - ispercentage: function (n) { - return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False; - }, - isem: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - - /* Blending modes */ - - multiply: function(color1, color2) { - var r = color1.rgb[0] * color2.rgb[0] / 255; - var g = color1.rgb[1] * color2.rgb[1] / 255; - var b = color1.rgb[2] * color2.rgb[2] / 255; - return this.rgb(r, g, b); - }, - screen: function(color1, color2) { - var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - overlay: function(color1, color2) { - var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - softlight: function(color1, color2) { - var t = color2.rgb[0] * color1.rgb[0] / 255; - var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255; - t = color2.rgb[1] * color1.rgb[1] / 255; - var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255; - t = color2.rgb[2] * color1.rgb[2] / 255; - var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255; - return this.rgb(r, g, b); - }, - hardlight: function(color1, color2) { - var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255; - var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255; - var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - difference: function(color1, color2) { - var r = Math.abs(color1.rgb[0] - color2.rgb[0]); - var g = Math.abs(color1.rgb[1] - color2.rgb[1]); - var b = Math.abs(color1.rgb[2] - color2.rgb[2]); - return this.rgb(r, g, b); - }, - exclusion: function(color1, color2) { - var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255; - var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255; - var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - average: function(color1, color2) { - var r = (color1.rgb[0] + color2.rgb[0]) / 2; - var g = (color1.rgb[1] + color2.rgb[1]) / 2; - var b = (color1.rgb[2] + color2.rgb[2]) / 2; - return this.rgb(r, g, b); - }, - negation: function(color1, color2) { - var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]); - var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]); - var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]); - return this.rgb(r, g, b); - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - // 'transparent':'rgba(0,0,0,0)', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, filename) { - this.name = name; - this.args = args; - this.index = index; - this.filename = filename; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.filename }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS(env) }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype.eval = function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - }, - - // TODO: Perform unit conversion before comparing - compare: function (other) { - if (other instanceof tree.Dimension) { - if (other.value > this.value) { - return -1; - } else if (other.value < this.value) { - return 1; - } else { - return 0; - } - } else { - return -1; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - var evaldDirective = this; - if (this.ruleset) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name); - evaldDirective.ruleset = this.ruleset.eval(env); - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype.eval = function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); -}; -tree.Element.prototype.toCSS = function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value == '' && this.combinator.value.charAt(0) == '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports, features, once, index) { - var that = this; - - this.once = once; - this.index = index; - this._path = path; - this.features = features && new(tree.Value)(features); - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css(\?.*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (e, root, imported) { - if (e) { e.index = index } - if (imported && that.once) that.skip = imported; - that.root = root || new(tree.Ruleset)([], []); - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - return "@import " + this._path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) return []; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.Media = function (value, features) { - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.ruleset = new(tree.Ruleset)(selectors, value); - this.ruleset.allowImports = true; -}; -tree.Media.prototype = { - toCSS: function (ctx, env) { - var features = this.features.toCSS(env); - - this.ruleset.root = (ctx.length === 0 || ctx[0].multiMedia); - return '@media ' + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - }, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var blockIndex = env.mediaBlocks.length; - env.mediaPath.push(this); - env.mediaBlocks.push(this); - - var media = new(tree.Media)([], []); - if(this.debugInfo) { - this.ruleset.debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - media.features = this.features.eval(env); - - env.frames.unshift(this.ruleset); - media.ruleset = this.ruleset.eval(env); - env.frames.shift(); - - env.mediaBlocks[blockIndex] = media; - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env) - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', 0); - return [new(tree.Selector)([el])]; - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.ruleset = new(tree.Ruleset)(selectors.slice(0), [this.ruleset]); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, filename, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.filename = filename; - this.important = important; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, args, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(args, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments, this.important).rules); - match = true; - } catch (e) { - throw { message: e.message, index: this.index, filename: this.filename, stack: e.stack }; - } - } - } - if (match) { - return rules; - } else { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index, filename: this.filename }; - } - } - } - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.filename }; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - evalParams: function (env, args) { - var frame = new(tree.Ruleset)(null, []), varargs, arg; - - for (var i = 0, val, name; i < this.params.length; i++) { - arg = args && args[i] - - if (arg && arg.name) { - frame.rules.unshift(new(tree.Rule)(arg.name, arg.value.eval(env))); - args.splice(i, 1); - i--; - continue; - } - - if (name = this.params[i].name) { - if (this.params[i].variadic && args) { - varargs = []; - for (var j = i; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else if (val = (arg && arg.value) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(name, val.eval(env))); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - return frame; - }, - eval: function (env, args, important) { - var frame = this.evalParams(env, args), context, _arguments = [], rules, start; - - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push((args[i] && args[i].value) || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.rules.map(function (r) { - return new(tree.Rule)(r.name, r.value, '!important', r.index); - }) : this.rules.slice(0); - - return new(tree.Ruleset)(null, rules).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (! this.variadic) { - if (argsLength < this.required) { return false } - if (argsLength > this.params.length) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - } - - if (this.condition && !this.condition.eval({ - frames: [this.evalParams(env, args)].concat(env.frames) - })) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - toCSS: function (env) { - return '(' + this.value.toCSS(env) + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return ('value' in v) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ratio = function (value) { - this.value = value; -}; -tree.Ratio.prototype = { - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, - this.value.eval(context), - this.important, - this.index, this.inline); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules = []; - - ruleset.root = this.root; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - rules = rules.concat(ruleset.rules[i].eval(env)); - } else { - rules.push(ruleset.rules[i]); - } - } - ruleset.rules = rules; - rules = []; - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - rules = rules.concat(ruleset.rules[i].eval(env)); - } else { - rules.push(ruleset.rules[i]); - } - } - ruleset.rules = rules; - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - if (env.mediaBlocks) { - for(var i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - _rules = [], // - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - debugInfo, // Line number debugging - rule; - - if (! this.root) { - this.joinSelectors(paths, context, this.selectors); - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive) || (rule instanceof tree.Media)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - debugInfo = tree.debugInfo(env, this); - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : ',\n'); - - // Remove duplicates - for (var i = rules.length - 1; i >= 0; i--) { - if (_rules.indexOf(rules[i]) === -1) { - _rules.unshift(rules[i]); - } - } - rules = _rules; - - css.push(debugInfo + selector + - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for(i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for(j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length == 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0)); //new Element(el.Combinator, "")); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for(k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = new(tree.Selector)(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = new(tree.Selector)([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, 0)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for(i = 0; i < newSelectors.length; i++) { - paths.push(newSelectors[i]); - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length == 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for(i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = new(tree.Selector)(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; -}; -tree.Selector.prototype.match = function (other) { - var len = this.elements.length, - olen = other.elements.length, - max = Math.min(len, olen); - - if (len < olen) { - return false; - } else { - for (var i = 0; i < max; i++) { - if (this.elements[i].value !== other.elements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.eval = function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - })); -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - if (this.elements[0].combinator.value === "") { - this._css = ' '; - } else { - this._css = ''; - } - - this._css += this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); - - return this._css; -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, paths) { - this.value = val; - this.paths = paths; -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + this.value.toCSS() + ")"; - }, - eval: function (ctx) { - var val = this.value.eval(ctx); - - // Add the base path if the URL is relative and we are in the browser - if (typeof window !== 'undefined' && typeof val.value === "string" && !/^(?:[a-z-]+:|\/)/.test(val.value) && this.paths.length > 0) { - val.value = this.paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - - return new(tree.URL)(val, this.paths); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.file, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.debugInfo = function(env, ctx) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx)+tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:"' + ctx.debugInfo.fileName + '";}line{font-family:"' + ctx.debugInfo.lineNumber + '";}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -// -// browser.js - client-side engine -// - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -// -// Watch mode -// -less.watch = function () { return this.watchMode = true }; -less.unwatch = function () { return this.watchMode = false }; - -if (less.env === 'development') { - less.optimization = 0; - - if (/!watch/.test(location.hash)) { - less.watch(); - } - var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); - if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; - } - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (e, root, _, sheet, env) { - if (root) { - createCSS(root.toCSS(), sheet, env.lastModified); - } - }); - } - }, less.poll); -} else { - less.optimization = 3; -} - -var cache; - -try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; -} catch (_) { - cache = null; -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (e, root, _, sheet, env) { - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - new(less.Parser)({ - filename: document.location.href.replace(/#.*$/, ''), - dumpLineNumbers: less.dumpLineNumbers - }).parse(styles[i].innerHTML || '', function (e, tree) { - var css = tree.toCSS(); - var style = styles[i]; - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - var contents = sheet.contents || {}; // Passing a ref to top importing parser content cache trough 'sheet' arg. - var url = window.location.href.replace(/[#?].*$/, ''); - var href = sheet.href.replace(/\?.*$/, ''); - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - - // Stylesheets in IE don't always return the full path - if (! /^[a-z-]+:/.test(href)) { - if (href.charAt(0) == "/") { - href = window.location.protocol + "//" + window.location.host + href; - } else { - href = url.slice(0, url.lastIndexOf('/') + 1) + href; - } - } - xhr(sheet.href, sheet.type, function (data, lastModified) { - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, null, data, sheet, { local: true, remaining: remaining }); - } else { - // Use remote copy (re-parse) - try { - contents[href] = data; // Updating top importing parser content cache - new(less.Parser)({ - optimization: less.optimization, - paths: [href.replace(/[\w\.-]+$/, '')], - mime: sheet.type, - filename: href, - 'contents': contents, // Passing top importing parser content cache ref down. - dumpLineNumbers: less.dumpLineNumbers - }).parse(data, function (e, root) { - if (e) { return error(e, href) } - try { - callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining }); - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } catch (e) { - error(e, href); - } - }); - } catch (e) { - error(e, href); - } - } - }, function (status, url) { - throw new(Error)("Couldn't load " + url + " (" + status + ")"); - }); -} - -function extractId(href) { - return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\?.*$/, '' ) // Remove query - .replace(/\.[^\.\/]+$/, '' ) // Remove file extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - var css; - - // Strip the query-string - var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If the stylesheet doesn't exist, create a new node - if ((css = document.getElementById(id)) === null) { - css = document.createElement('style'); - css.type = 'text/css'; - if( sheet.media ){ css.media = sheet.media; } - css.id = id; - var nextEl = sheet && sheet.nextSibling || null; - document.getElementsByTagName('head')[0].insertBefore(css, nextEl); - } - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - (function (node) { - if (css.childNodes.length > 0) { - if (css.firstChild.nodeValue !== node.nodeValue) { - css.replaceChild(node, css.firstChild); - } - } else { - css.appendChild(node); - } - })(document.createTextNode(styles)); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save'); - } - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? less.fileAsync : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - if (isFileProtocol && !less.fileAsync) { - if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new(XMLHttpRequest); - } else { - try { - return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX."); - return null; - } - } -} - -function removeNode(node) { - return node && node.parentNode.removeChild(node); -} - -function log(str) { - if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } -} - -function error(e, href) { - var id = 'less-error-message:' + extractId(href); - var template = '
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    • '; - var elem = document.createElement('div'), timer, content, error = []; - var filename = e.filename || href; - var filenameNoPath = filename.match(/([^\/]+)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

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- for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree, charset; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - if (typeof(window) === 'undefined') { less = {} } - else { less = window.less = {} } - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'node'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed arround by reference. - var env = env || { }; - // env.contents and files must be passed arround with top env - if (!env.contents) { env.contents = {}; } - env.rootpath = env.rootpath || ''; // env.rootpath must be initialized to '' if not provided - if (!env.files) { env.files = {}; } - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (e, root, fullPath) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - - var imported = fullPath in that.files; - - that.files[fullPath] = root; // Store the root - - if (e && !that.error) { that.error = e } - - callback(e, root, imported); - - if (that.queue.length === 0) { finish(that.error) } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - function isWhitespace(c) { - // Could change to \s? - var code = c.charCodeAt(0); - return code === 32 || code === 10 || code === 9; - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, index, k; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - endIndex = i + chunks[j].length, - mem = i += length; - - while (i < endIndex) { - if (! isWhitespace(input.charAt(i))) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - function getInput(e, env) { - if (e.filename && env.filename && (e.filename !== env.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, input) { - for (var n = index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function getFileName(e) { - if(less.mode === 'browser' || less.mode === 'rhino') - return e.filename; - else - return require('path').resolve(e.filename); - } - - function getDebugInfo(index, inputStream, e) { - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: getFileName(e) - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input).line + 1); - this.callExtract = lines[getLocation(e.call, input).line]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length;) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - } - } - - switch (c) { - case '{': if (! inParam) { level ++; chunk.push(c); break } - case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } - case '(': if (! inParam) { inParam = true; chunk.push(c); break } - case ')': if ( inParam) { inParam = false; chunk.push(c); break } - default: chunk.push(c); - } - - i++; - } - if (level != 0) { - error = new(LessError)({ - index: i-1, - type: 'Parse', - message: (level > 0) ? "missing closing `}`" : "missing opening `{`", - filename: env.filename - }, env); - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - if (error) { - return callback(error, env); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = [], importError; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false, dumpLineNumbers: env.dumpLineNumbers }); - } catch (e) { - throw new(LessError)(e, env); - } - - if ((importError = parser.imports.error)) { // Check if there was an error during importing - if (importError instanceof LessError) throw importError; - else throw new(LessError)(importError, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('ycssmin').cssmin(css); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function (e) { - e = error || e; - if (e) callback(e); - else callback(null, root); - }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/) || $(/^;+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null } - else { i += name.length } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index, env.filename) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.ratio) || - $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted) || - $(this.entities.unicodeDescriptor); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.rootpath); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.filename); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var name, curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.filename); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) return; - - if (value = $(/^([+-]?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn|dpi|dpcm|dppx|rem|vw|vh|vmin|vm|ch)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A Ratio - // - // 16/9 - // - ratio: function () { - var value, c = input.charCodeAt(i); - if (c > 57 || c < 48) return; - - if (value = $(/^(\d+\/\d+)/)) { - return new(tree.Ratio)(value[1]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - if (ud = $(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/)) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - save(); - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - - restore(); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, argsSemiColon = [], argsComma = [], args, delim, arg, nameLoop, expressions, isSemiColonSeperated, expressionContainsNamed, index = i, s = input.charAt(i), name, value, important = false; - - if (s !== '.' && s !== '#') { return } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - if ($('(')) { - expressions = []; - while (arg = $(this.expression)) { - nameLoop = null; - value = arg; - - // Variable - if (arg.value.length == 1) { - var val = arg.value[0]; - if (val instanceof tree.Variable) { - if ($(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(this.expression); - nameLoop = (name = val.name); - } - } - } - - expressions.push(value); - - argsComma.push({ name: nameLoop, value: value }); - - if ($(',')) { - continue; - } - - if ($(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name: name, value: value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - expect(')'); - } - - args = isSemiColonSeperated ? argsSemiColon : argsComma; - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.filename, important); - } - - restore(); - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - do { - $(this.comment); - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - variadic = true; - params.push({ variadic: true }); - break; - } else if (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - value = expect(this.expression, 'expected expression'); - params.push({ name: param.name, value: value }); - } else if ($(/^\.{3}/)) { - params.push({ name: param.name, variadic: true }); - variadic = true; - break; - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - } else { - break; - } - } while ($(',') || $(';')) - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - $(this.comment); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) ||$(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^()@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(')) { - if ((v = ($(this.entities.variableCurly) || - $(this.entities.variable) || - $(this.selector))) && - $(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, i) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|') { - i++; - while (input.charAt(i).match(/\s/)) { i++ } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - // depreciated, will be removed soon - if ($('(')) { - sel = $(this.entity); - expect(')'); - return new(tree.Selector)([new(tree.Element)('', sel, i)]); - } - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^(?:[_A-Za-z0-9-]|\\.)+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match, debugInfo; - save(); - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) - ruleset.debugInfo = debugInfo; - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import(?:-(once))?\s+/); - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - return new(tree.Import)(path, imports, features, (dir[1] === 'once'), index, env.rootpath); - } - } - - restore(); - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.entity); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features); - if(env.dumpLineNumbers) - media.debugInfo = debugInfo; - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, identifier, e, nodes, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - if (!name) return; - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - name += " " + ($(/^[^{]+/) || '').trim(); - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else { - if ((value = hasExpression ? $(this.expression) : $(this.entity)) && $(';')) { - var directive = new(tree.Directive)(name, value); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while (!peek(/^\/[*\/]/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (!isWhitespace(input.charAt(i - 1)) && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-z0-9-]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (!/^([a-z-]+:)?\//.test(path) && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ - href: path, - title: path, - type: env.mime, - contents: env.contents, - files: env.files, - rootpath: env.rootpath, - entryPath: env.entryPath, - relativeUrls: env.relativeUrls }, - function (e, root, data, sheet, _, path) { - if (e && typeof(env.errback) === "function") { - env.errback.call(null, path, paths, callback, env); - } else { - callback.call(null, e, root, path); - } - }, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 256); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round((0.2126 * (color.rgb[0]/255) + - 0.7152 * (color.rgb[1]/255) + - 0.0722 * (color.rgb[2]/255)) * - color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = threshold.value; - } - if (((0.2126 * (color.rgb[0]/255) + 0.7152 * (color.rgb[1]/255) + 0.0722 * (color.rgb[2]/255)) * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return this._math(function(num) { return num.toFixed(fraction); }, n); - }, - ceil: function (n) { - return this._math(Math.ceil, n); - }, - floor: function (n) { - return this._math(Math.floor, n); - }, - _math: function (fn, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(fn(parseFloat(n.value)), n.unit); - } else if (typeof(n) === 'number') { - return fn(n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False; - }, - ispercentage: function (n) { - return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False; - }, - isem: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - - /* Blending modes */ - - multiply: function(color1, color2) { - var r = color1.rgb[0] * color2.rgb[0] / 255; - var g = color1.rgb[1] * color2.rgb[1] / 255; - var b = color1.rgb[2] * color2.rgb[2] / 255; - return this.rgb(r, g, b); - }, - screen: function(color1, color2) { - var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - overlay: function(color1, color2) { - var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - softlight: function(color1, color2) { - var t = color2.rgb[0] * color1.rgb[0] / 255; - var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255; - t = color2.rgb[1] * color1.rgb[1] / 255; - var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255; - t = color2.rgb[2] * color1.rgb[2] / 255; - var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255; - return this.rgb(r, g, b); - }, - hardlight: function(color1, color2) { - var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255; - var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255; - var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - difference: function(color1, color2) { - var r = Math.abs(color1.rgb[0] - color2.rgb[0]); - var g = Math.abs(color1.rgb[1] - color2.rgb[1]); - var b = Math.abs(color1.rgb[2] - color2.rgb[2]); - return this.rgb(r, g, b); - }, - exclusion: function(color1, color2) { - var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255; - var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255; - var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - average: function(color1, color2) { - var r = (color1.rgb[0] + color2.rgb[0]) / 2; - var g = (color1.rgb[1] + color2.rgb[1]) / 2; - var b = (color1.rgb[2] + color2.rgb[2]) / 2; - return this.rgb(r, g, b); - }, - negation: function(color1, color2) { - var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]); - var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]); - var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]); - return this.rgb(r, g, b); - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - } -}; - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit == '%') { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - // 'transparent':'rgba(0,0,0,0)', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, filename) { - this.name = name; - this.args = args; - this.index = index; - this.filename = filename; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.filename }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS(env) }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype.eval = function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - if (other.value > this.value) { - return -1; - } else if (other.value < this.value) { - return 1; - } else { - if (other.unit && this.unit !== other.unit) { - return -1; - } - return 0; - } - } else { - return -1; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - var evaldDirective = this; - if (this.ruleset) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name); - evaldDirective.ruleset = this.ruleset.eval(env); - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype.eval = function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); -}; -tree.Element.prototype.toCSS = function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value == '' && this.combinator.value.charAt(0) == '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ', - '|' : env.compress ? '|' : ' | ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports, features, once, index, rootpath) { - var that = this; - - this.once = once; - this.index = index; - this._path = path; - this.features = features && new(tree.Value)(features); - this.rootpath = rootpath; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /(\.[a-z]*$)|([\?;].*)$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css([\?;].*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (e, root, imported) { - if (e) { e.index = index } - if (imported && that.once) that.skip = imported; - that.root = root || new(tree.Ruleset)([], []); - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - // Add the base path if the import is relative - if (typeof this._path.value === "string" && !/^(?:[a-z-]+:|\/)/.test(this._path.value)) { - this._path.value = this.rootpath + this._path.value; - } - return "@import " + this._path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) return []; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.Media = function (value, features) { - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.ruleset = new(tree.Ruleset)(selectors, value); - this.ruleset.allowImports = true; -}; -tree.Media.prototype = { - toCSS: function (ctx, env) { - var features = this.features.toCSS(env); - - this.ruleset.root = (ctx.length === 0 || ctx[0].multiMedia); - return '@media ' + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - }, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)([], []); - if(this.debugInfo) { - this.ruleset.debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - media.features = this.features.eval(env); - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.ruleset); - media.ruleset = this.ruleset.eval(env); - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env) - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', 0); - return [new(tree.Selector)([el])]; - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.ruleset = new(tree.Ruleset)(selectors.slice(0), [this.ruleset]); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, filename, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.filename = filename; - this.important = important; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - if (mixin.matchArgs(args, env)) { - if (!mixin.matchCondition || mixin.matchCondition(args, env)) { - try { - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.filename, stack: e.stack }; - } - } - match = true; - } - } - if (match) { - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")`", - index: this.index, filename: this.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.filename }; - } - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - var frame = new(tree.Ruleset)(null, []), varargs, arg, params = this.params.slice(0), i, j, val, name, isNamedFound, argIndex; - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.rules.unshift(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) continue; - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.rules.unshift(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, {frames: mixinFrames}, args, _arguments), - context, rules, start, ruleset; - - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.parent.makeImportant.apply(this).rules : this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules).eval({ - frames: [this, frame].concat(mixinFrames) - }); - ruleset.originalRuleset = this; - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval({ - frames: [this.evalParams(env, {frames: this.frames.concat(env.frames)}, args, [])].concat(env.frames) - })) { return false } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (! this.variadic) { - if (argsLength < this.required) { return false } - if (argsLength > this.params.length) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - if (!a.operate) { - throw { name: "OperationError", - message: "Operation on an invalid type" }; - } - - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - toCSS: function (env) { - return '(' + this.value.toCSS(env) + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ratio = function (value) { - this.value = value; -}; -tree.Ratio.prototype = { - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, - this.value.eval(context), - this.important, - this.index, this.inline); -}; - -tree.Rule.prototype.makeImportant = function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.index, this.inline); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - rules = ruleset.rules[i].eval(env); - ruleset.rules.splice.apply(ruleset.rules, [i, 1].concat(rules)); - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - if (env.mediaBlocks) { - for(var i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var i, rules; - for (i = 0; i < this.rules.length; i++) { - if (this.rules[i] instanceof tree.Import) { - rules = this.rules[i].eval(env); - if (typeof rules.length === "number") { - this.rules.splice.apply(this.rules, [i, 1].concat(rules)); - i+= rules.length-1; - } else { - this.rules.splice(i, 1, rules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - _rules = [], // - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - debugInfo, // Line number debugging - rule; - - if (! this.root) { - this.joinSelectors(paths, context, this.selectors); - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Media)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Directive) { - var cssValue = rule.toCSS(paths, env); - // Output only the first @charset definition as such - convert the others - // to comments in case debug is enabled - if (rule.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (env.charset) { - if (rule.debugInfo) { - rulesets.push(tree.debugInfo(env, rule)); - rulesets.push(new tree.Comment("/* "+cssValue.replace(/\n/g, "")+" */\n").toCSS(env)); - } - continue; - } - env.charset = true; - } - rulesets.push(cssValue); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - debugInfo = tree.debugInfo(env, this); - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : ',\n'); - - // Remove duplicates - for (var i = rules.length - 1; i >= 0; i--) { - if (_rules.indexOf(rules[i]) === -1) { - _rules.unshift(rules[i]); - } - } - rules = _rules; - - css.push(debugInfo + selector + - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for(i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for(j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length == 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0)); //new Element(el.Combinator, "")); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for(k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = new(tree.Selector)(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = new(tree.Selector)([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, 0)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for(i = 0; i < newSelectors.length; i++) { - paths.push(newSelectors[i]); - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length == 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for(i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = new(tree.Selector)(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; -}; -tree.Selector.prototype.match = function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, max, i; - - oelements = other.elements.slice( - (other.elements.length && other.elements[0].value === "&") ? 1 : 0); - olen = oelements.length; - max = Math.min(len, olen) - - if (olen === 0 || len < olen) { - return false; - } else { - for (i = 0; i < max; i++) { - if (elements[i].value !== oelements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.eval = function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - })); -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - if (this.elements[0].combinator.value === "") { - this._css = ' '; - } else { - this._css = ''; - } - - this._css += this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); - - return this._css; -}; - -})(require('../tree')); -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, rootpath) { - this.value = val; - this.rootpath = rootpath; -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + this.value.toCSS() + ")"; - }, - eval: function (ctx) { - var val = this.value.eval(ctx), rootpath; - - // Add the base path if the URL is relative - if (typeof val.value === "string" && !/^(?:[a-z-]+:|\/)/.test(val.value)) { - rootpath = this.rootpath; - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - return new(tree.URL)(val, this.rootpath); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.file, - index: this.index }; - } - - this.evaluating = true; - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { - this.evaluating = false; - return variable; - } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.file, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.debugInfo = function(env, ctx) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx)+tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/[\/:.]/g, '\\$&') + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -// -// browser.js - client-side engine -// - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - less.tree.functions[func] = less.functions[func]; - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -// -// Watch mode -// -less.watch = function () { - if (!less.watchMode ){ - less.env = 'development'; - initRunningMode(); - } - return this.watchMode = true -}; - -less.unwatch = function () {clearInterval(less.watchTimer); return this.watchMode = false; }; - -function initRunningMode(){ - if (less.env === 'development') { - less.optimization = 0; - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (e, root, _, sheet, env) { - if (root) { - createCSS(root.toCSS(), sheet, env.lastModified); - } - }); - } - }, less.poll); - } else { - less.optimization = 3; - } -} - -if (/!watch/.test(location.hash)) { - less.watch(); -} - -var cache = null; - -if (less.env != 'development') { - try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; - } catch (_) {} -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - -// -// With this function, it's possible to alter variables and re-render -// CSS without reloading less-files -// -var session_cache = ''; -less.modifyVars = function(record) { - var str = session_cache; - for (name in record) { - str += ((name.slice(0,1) === '@')? '' : '@') + name +': '+ - ((record[name].slice(-1) === ';')? record[name] : record[name] +';'); - } - new(less.Parser)().parse(str, function (e, root) { - createCSS(root.toCSS(), less.sheets[less.sheets.length - 1]); - }); -}; - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (e, root, _, sheet, env) { - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - new(less.Parser)({ - filename: document.location.href.replace(/#.*$/, ''), - dumpLineNumbers: less.dumpLineNumbers - }).parse(styles[i].innerHTML || '', function (e, tree) { - var css = tree.toCSS(); - var style = styles[i]; - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function pathDiff(url, baseUrl) { - // diff between two paths to create a relative path - - var urlParts = extractUrlParts(url), - baseUrlParts = extractUrlParts(baseUrl), - i, max, urlDirectories, baseUrlDirectories, diff = ""; - if (urlParts.hostPart !== baseUrlParts.hostPart) { - return ""; - } - max = Math.max(baseUrlParts.directories.length, urlParts.directories.length); - for(i = 0; i < max; i++) { - if (baseUrlParts.directories[i] !== urlParts.directories[i]) { break; } - } - baseUrlDirectories = baseUrlParts.directories.slice(i); - urlDirectories = urlParts.directories.slice(i); - for(i = 0; i < baseUrlDirectories.length-1; i++) { - diff += "../"; - } - for(i = 0; i < urlDirectories.length-1; i++) { - diff += urlDirectories[i] + "/"; - } - return diff; -} - -function extractUrlParts(url, baseUrl) { - // urlParts[1] = protocol&hostname || / - // urlParts[2] = / if path relative to host base - // urlParts[3] = directories - // urlParts[4] = filename - // urlParts[5] = parameters - - var urlPartsRegex = /^((?:[a-z-]+:)?\/\/(?:[^\/\?#]+\/)|([\/\\]))?((?:[^\/\\\?#]+[\/\\])*)([^\/\\\?#]*)([#\?].*)?$/, - urlParts = url.match(urlPartsRegex), - returner = {}, directories = [], i, baseUrlParts; - - if (!urlParts) { - throw new Error("Could not parse sheet href - '"+url+"'"); - } - - // Stylesheets in IE don't always return the full path - if (!urlParts[1] || urlParts[2]) { - baseUrlParts = baseUrl.match(urlPartsRegex); - if (!baseUrlParts) { - throw new Error("Could not parse page url - '"+baseUrl+"'"); - } - urlParts[1] = baseUrlParts[1]; - if (!urlParts[2]) { - urlParts[3] = baseUrlParts[3] + urlParts[3]; - } - } - - if (urlParts[3]) { - directories = urlParts[3].replace("\\", "/").split("/"); - - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".." && i > 0) { - directories.splice(i-1, 2); - i -= 2; - } - } - } - - returner.hostPart = urlParts[1]; - returner.directories = directories; - returner.path = urlParts[1] + directories.join("/"); - returner.fileUrl = returner.path + (urlParts[4] || ""); - returner.url = returner.fileUrl + (urlParts[5] || ""); - return returner; -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - // sheet may be set to the stylesheet for the initial load or a collection of properties including - // some env variables for imports - var contents = sheet.contents || {}; - var files = sheet.files || {}; - var hrefParts = extractUrlParts(sheet.href, window.location.href); - var href = hrefParts.url; - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - var rootpath; - - if (less.relativeUrls) { - if (less.rootpath) { - if (sheet.entryPath) { - rootpath = extractUrlParts(less.rootpath + pathDiff(hrefParts.path, sheet.entryPath)).path; - } else { - rootpath = less.rootpath; - } - } else { - rootpath = hrefParts.path; - } - } else { - if (less.rootpath) { - rootpath = less.rootpath; - } else { - if (sheet.entryPath) { - rootpath = sheet.entryPath; - } else { - rootpath = hrefParts.path; - } - } - } - - xhr(href, sheet.type, function (data, lastModified) { - // Store data this session - session_cache += data.replace(/@import .+?;/ig, ''); - - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, null, data, sheet, { local: true, remaining: remaining }, href); - } else { - // Use remote copy (re-parse) - try { - contents[href] = data; // Updating top importing parser content cache - new(less.Parser)({ - optimization: less.optimization, - paths: [hrefParts.path], - entryPath: sheet.entryPath || hrefParts.path, - mime: sheet.type, - filename: href, - rootpath: rootpath, - relativeUrls: sheet.relativeUrls, - contents: contents, // Passing top importing parser content cache ref down. - files: files, - dumpLineNumbers: less.dumpLineNumbers - }).parse(data, function (e, root) { - if (e) { return error(e, href) } - try { - callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining }, href); - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } catch (e) { - error(e, href); - } - }); - } catch (e) { - error(e, href); - } - } - }, function (status, url) { - throw new(Error)("Couldn't load " + url + " (" + status + ")"); - }); -} - -function extractId(href) { - return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - var css; - - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If the stylesheet doesn't exist, create a new node - if ((css = document.getElementById(id)) === null) { - css = document.createElement('style'); - css.type = 'text/css'; - if( sheet.media ){ css.media = sheet.media; } - css.id = id; - var nextEl = sheet && sheet.nextSibling || null; - (nextEl || document.getElementsByTagName('head')[0]).parentNode.insertBefore(css, nextEl); - } - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - (function (node) { - if (css.childNodes.length > 0) { - if (css.firstChild.nodeValue !== node.nodeValue) { - css.replaceChild(node, css.firstChild); - } - } else { - css.appendChild(node); - } - })(document.createTextNode(styles)); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save'); - } - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? less.fileAsync : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - if (isFileProtocol && !less.fileAsync) { - if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new(XMLHttpRequest); - } else { - try { - return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX."); - return null; - } - } -} - -function removeNode(node) { - return node && node.parentNode.removeChild(node); -} - -function log(str) { - if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } -} - -function error(e, href) { - var id = 'less-error-message:' + extractId(href); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, error = []; - var filename = e.filename || href; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.message || 'There is an error in your .less file') + - '

    ' + '

    in ' + filenameNoPath + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i]) { - error.push(template.replace(/\{line\}/, parseInt(e.line) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.stack) { - content += '
    ' + e.stack.split('\n').slice(1).join('
    '); - } else if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - '
      ' + error.join('') + '
    '; - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #dd6666;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.line {', - 'color: #ff0000;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); 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e.localStorage=="undefined"?null:e.localStorage}catch(c){}var h=document.getElementsByTagName("link"),p=/^text\/(x-)?less$/;r.sheets=[];for(var d=0;d>> 0; - for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree, charset; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - if (typeof(window) === 'undefined') { less = {} } - else { less = window.less = {} } - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'node'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed arround by reference. - var env = env || { }; - // env.contents and files must be passed arround with top env - if (!env.contents) { env.contents = {}; } - env.rootpath = env.rootpath || ''; // env.rootpath must be initialized to '' if not provided - if (!env.files) { env.files = {}; } - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (e, root, fullPath) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - - var imported = fullPath in that.files; - - that.files[fullPath] = root; // Store the root - - if (e && !that.error) { that.error = e } - - callback(e, root, imported); - - if (that.queue.length === 0) { finish(that.error) } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - function isWhitespace(c) { - // Could change to \s? - var code = c.charCodeAt(0); - return code === 32 || code === 10 || code === 9; - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, index, k; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - endIndex = i + chunks[j].length, - mem = i += length; - - while (i < endIndex) { - if (! isWhitespace(input.charAt(i))) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - function getInput(e, env) { - if (e.filename && env.filename && (e.filename !== env.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, input) { - for (var n = index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function getFileName(e) { - if(less.mode === 'browser' || less.mode === 'rhino') - return e.filename; - else - return require('path').resolve(e.filename); - } - - function getDebugInfo(index, inputStream, e) { - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: getFileName(e) - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input).line + 1); - this.callExtract = lines[getLocation(e.call, input).line]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length;) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - } - } - - switch (c) { - case '{': if (! inParam) { level ++; chunk.push(c); break } - case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } - case '(': if (! inParam) { inParam = true; chunk.push(c); break } - case ')': if ( inParam) { inParam = false; chunk.push(c); break } - default: chunk.push(c); - } - - i++; - } - if (level != 0) { - error = new(LessError)({ - index: i-1, - type: 'Parse', - message: (level > 0) ? "missing closing `}`" : "missing opening `{`", - filename: env.filename - }, env); - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - if (error) { - return callback(error, env); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = [], importError; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false, dumpLineNumbers: env.dumpLineNumbers }); - } catch (e) { - throw new(LessError)(e, env); - } - - if ((importError = parser.imports.error)) { // Check if there was an error during importing - if (importError instanceof LessError) throw importError; - else throw new(LessError)(importError, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('ycssmin').cssmin(css); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function (e) { - e = error || e; - if (e) callback(e); - else callback(null, root); - }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/) || $(/^;+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null } - else { i += name.length } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index, env.filename) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.ratio) || - $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted) || - $(this.entities.unicodeDescriptor); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.rootpath); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.filename); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var name, curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.filename); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) return; - - if (value = $(/^([+-]?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn|dpi|dpcm|dppx|rem|vw|vh|vmin|vm|ch)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A Ratio - // - // 16/9 - // - ratio: function () { - var value, c = input.charCodeAt(i); - if (c > 57 || c < 48) return; - - if (value = $(/^(\d+\/\d+)/)) { - return new(tree.Ratio)(value[1]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - if (ud = $(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/)) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - save(); - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - - restore(); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, argsSemiColon = [], argsComma = [], args, delim, arg, nameLoop, expressions, isSemiColonSeperated, expressionContainsNamed, index = i, s = input.charAt(i), name, value, important = false; - - if (s !== '.' && s !== '#') { return } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - if ($('(')) { - expressions = []; - while (arg = $(this.expression)) { - nameLoop = null; - value = arg; - - // Variable - if (arg.value.length == 1) { - var val = arg.value[0]; - if (val instanceof tree.Variable) { - if ($(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(this.expression); - nameLoop = (name = val.name); - } - } - } - - expressions.push(value); - - argsComma.push({ name: nameLoop, value: value }); - - if ($(',')) { - continue; - } - - if ($(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name: name, value: value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - expect(')'); - } - - args = isSemiColonSeperated ? argsSemiColon : argsComma; - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.filename, important); - } - - restore(); - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - do { - $(this.comment); - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - variadic = true; - params.push({ variadic: true }); - break; - } else if (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - value = expect(this.expression, 'expected expression'); - params.push({ name: param.name, value: value }); - } else if ($(/^\.{3}/)) { - params.push({ name: param.name, variadic: true }); - variadic = true; - break; - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - } else { - break; - } - } while ($(',') || $(';')) - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - $(this.comment); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) ||$(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^()@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(')) { - if ((v = ($(this.entities.variableCurly) || - $(this.entities.variable) || - $(this.selector))) && - $(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, i) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|') { - i++; - while (input.charAt(i).match(/\s/)) { i++ } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - // depreciated, will be removed soon - if ($('(')) { - sel = $(this.entity); - if (!$(')')) { return null; } - return new(tree.Selector)([new(tree.Element)('', sel, i)]); - } - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^(?:[_A-Za-z0-9-]|\\.)+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match, debugInfo; - - save(); - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) - ruleset.debugInfo = debugInfo; - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import(?:-(once))?\s+/); - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - return new(tree.Import)(path, imports, features, (dir[1] === 'once'), index, env.rootpath); - } - } - - restore(); - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.entity); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features); - if(env.dumpLineNumbers) - media.debugInfo = debugInfo; - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, identifier, e, nodes, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - if (!name) return; - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - name += " " + ($(/^[^{]+/) || '').trim(); - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else { - if ((value = hasExpression ? $(this.expression) : $(this.entity)) && $(';')) { - var directive = new(tree.Directive)(name, value); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while (!peek(/^\/[*\/]/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (!isWhitespace(input.charAt(i - 1)) && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-z0-9-]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (!/^([a-z-]+:)?\//.test(path) && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ - href: path, - title: path, - type: env.mime, - contents: env.contents, - files: env.files, - rootpath: env.rootpath, - entryPath: env.entryPath, - relativeUrls: env.relativeUrls }, - function (e, root, data, sheet, _, path) { - if (e && typeof(env.errback) === "function") { - env.errback.call(null, path, paths, callback, env); - } else { - callback.call(null, e, root, path); - } - }, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 256); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round((0.2126 * (color.rgb[0]/255) + - 0.7152 * (color.rgb[1]/255) + - 0.0722 * (color.rgb[2]/255)) * - color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = threshold.value; - } - if (((0.2126 * (color.rgb[0]/255) + 0.7152 * (color.rgb[1]/255) + 0.0722 * (color.rgb[2]/255)) * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return this._math(function(num) { return num.toFixed(fraction); }, n); - }, - ceil: function (n) { - return this._math(Math.ceil, n); - }, - floor: function (n) { - return this._math(Math.floor, n); - }, - _math: function (fn, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(fn(parseFloat(n.value)), n.unit); - } else if (typeof(n) === 'number') { - return fn(n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False; - }, - ispercentage: function (n) { - return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False; - }, - isem: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - - /* Blending modes */ - - multiply: function(color1, color2) { - var r = color1.rgb[0] * color2.rgb[0] / 255; - var g = color1.rgb[1] * color2.rgb[1] / 255; - var b = color1.rgb[2] * color2.rgb[2] / 255; - return this.rgb(r, g, b); - }, - screen: function(color1, color2) { - var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - overlay: function(color1, color2) { - var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - softlight: function(color1, color2) { - var t = color2.rgb[0] * color1.rgb[0] / 255; - var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255; - t = color2.rgb[1] * color1.rgb[1] / 255; - var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255; - t = color2.rgb[2] * color1.rgb[2] / 255; - var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255; - return this.rgb(r, g, b); - }, - hardlight: function(color1, color2) { - var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255; - var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255; - var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - difference: function(color1, color2) { - var r = Math.abs(color1.rgb[0] - color2.rgb[0]); - var g = Math.abs(color1.rgb[1] - color2.rgb[1]); - var b = Math.abs(color1.rgb[2] - color2.rgb[2]); - return this.rgb(r, g, b); - }, - exclusion: function(color1, color2) { - var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255; - var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255; - var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - average: function(color1, color2) { - var r = (color1.rgb[0] + color2.rgb[0]) / 2; - var g = (color1.rgb[1] + color2.rgb[1]) / 2; - var b = (color1.rgb[2] + color2.rgb[2]) / 2; - return this.rgb(r, g, b); - }, - negation: function(color1, color2) { - var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]); - var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]); - var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]); - return this.rgb(r, g, b); - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - } -}; - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit == '%') { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - // 'transparent':'rgba(0,0,0,0)', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, filename) { - this.name = name; - this.args = args; - this.index = index; - this.filename = filename; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }), - result; - - if (this.name in tree.functions) { // 1. - try { - result = tree.functions[this.name].apply(tree.functions, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.filename }; - } - } - - // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS(env) }).join(', ') + ")"); - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype.eval = function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - if (other.value > this.value) { - return -1; - } else if (other.value < this.value) { - return 1; - } else { - if (other.unit && this.unit !== other.unit) { - return -1; - } - return 0; - } - } else { - return -1; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - var evaldDirective = this; - if (this.ruleset) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name); - evaldDirective.ruleset = this.ruleset.eval(env); - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype.eval = function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); -}; -tree.Element.prototype.toCSS = function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value == '' && this.combinator.value.charAt(0) == '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ', - '|' : env.compress ? '|' : ' | ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports, features, once, index, rootpath) { - var that = this; - - this.once = once; - this.index = index; - this._path = path; - this.features = features && new(tree.Value)(features); - this.rootpath = rootpath; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /(\.[a-z]*$)|([\?;].*)$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css([\?;].*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (e, root, imported) { - if (e) { e.index = index } - if (imported && that.once) that.skip = imported; - that.root = root || new(tree.Ruleset)([], []); - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - // Add the base path if the import is relative - if (typeof this._path.value === "string" && !/^(?:[a-z-]+:|\/)/.test(this._path.value)) { - this._path.value = this.rootpath + this._path.value; - } - return "@import " + this._path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) return []; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.Media = function (value, features) { - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.ruleset = new(tree.Ruleset)(selectors, value); - this.ruleset.allowImports = true; -}; -tree.Media.prototype = { - toCSS: function (ctx, env) { - var features = this.features.toCSS(env); - - this.ruleset.root = (ctx.length === 0 || ctx[0].multiMedia); - return '@media ' + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - }, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)([], []); - if(this.debugInfo) { - this.ruleset.debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - media.features = this.features.eval(env); - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.ruleset); - media.ruleset = this.ruleset.eval(env); - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env) - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', 0); - return [new(tree.Selector)([el])]; - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.ruleset = new(tree.Ruleset)(selectors.slice(0), [this.ruleset]); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, filename, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.filename = filename; - this.important = important; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - if (mixin.matchArgs(args, env)) { - if (!mixin.matchCondition || mixin.matchCondition(args, env)) { - try { - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.filename, stack: e.stack }; - } - } - match = true; - } - } - if (match) { - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")`", - index: this.index, filename: this.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.filename }; - } - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - var frame = new(tree.Ruleset)(null, []), varargs, arg, params = this.params.slice(0), i, j, val, name, isNamedFound, argIndex; - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.rules.unshift(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) continue; - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.rules.unshift(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, {frames: mixinFrames}, args, _arguments), - context, rules, start, ruleset; - - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.parent.makeImportant.apply(this).rules : this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules).eval({ - frames: [this, frame].concat(mixinFrames) - }); - ruleset.originalRuleset = this; - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval({ - frames: [this.evalParams(env, {frames: this.frames.concat(env.frames)}, args, [])].concat(env.frames) - })) { return false } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (! this.variadic) { - if (argsLength < this.required) { return false } - if (argsLength > this.params.length) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - if (!a.operate) { - throw { name: "OperationError", - message: "Operation on an invalid type" }; - } - - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - toCSS: function (env) { - return '(' + this.value.toCSS(env) + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ratio = function (value) { - this.value = value; -}; -tree.Ratio.prototype = { - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, - this.value.eval(context), - this.important, - this.index, this.inline); -}; - -tree.Rule.prototype.makeImportant = function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.index, this.inline); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - rules = ruleset.rules[i].eval(env); - ruleset.rules.splice.apply(ruleset.rules, [i, 1].concat(rules)); - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - if (env.mediaBlocks) { - for(var i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var i, rules; - for (i = 0; i < this.rules.length; i++) { - if (this.rules[i] instanceof tree.Import) { - rules = this.rules[i].eval(env); - if (typeof rules.length === "number") { - this.rules.splice.apply(this.rules, [i, 1].concat(rules)); - i+= rules.length-1; - } else { - this.rules.splice(i, 1, rules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - _rules = [], // - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - debugInfo, // Line number debugging - rule; - - if (! this.root) { - this.joinSelectors(paths, context, this.selectors); - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Media)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Directive) { - var cssValue = rule.toCSS(paths, env); - // Output only the first @charset definition as such - convert the others - // to comments in case debug is enabled - if (rule.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (env.charset) { - if (rule.debugInfo) { - rulesets.push(tree.debugInfo(env, rule)); - rulesets.push(new tree.Comment("/* "+cssValue.replace(/\n/g, "")+" */\n").toCSS(env)); - } - continue; - } - env.charset = true; - } - rulesets.push(cssValue); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - debugInfo = tree.debugInfo(env, this); - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : ',\n'); - - // Remove duplicates - for (var i = rules.length - 1; i >= 0; i--) { - if (_rules.indexOf(rules[i]) === -1) { - _rules.unshift(rules[i]); - } - } - rules = _rules; - - css.push(debugInfo + selector + - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for(i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for(j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length == 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0)); //new Element(el.Combinator, "")); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for(k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = new(tree.Selector)(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = new(tree.Selector)([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, 0)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for(i = 0; i < newSelectors.length; i++) { - paths.push(newSelectors[i]); - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length == 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for(i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = new(tree.Selector)(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; -}; -tree.Selector.prototype.match = function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, max, i; - - oelements = other.elements.slice( - (other.elements.length && other.elements[0].value === "&") ? 1 : 0); - olen = oelements.length; - max = Math.min(len, olen) - - if (olen === 0 || len < olen) { - return false; - } else { - for (i = 0; i < max; i++) { - if (elements[i].value !== oelements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.eval = function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - })); -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - if (this.elements[0].combinator.value === "") { - this._css = ' '; - } else { - this._css = ''; - } - - this._css += this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); - - return this._css; -}; - -})(require('../tree')); -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, rootpath) { - this.value = val; - this.rootpath = rootpath; -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + this.value.toCSS() + ")"; - }, - eval: function (ctx) { - var val = this.value.eval(ctx), rootpath; - - // Add the base path if the URL is relative - if (typeof val.value === "string" && !/^(?:[a-z-]+:|\/)/.test(val.value)) { - rootpath = this.rootpath; - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - return new(tree.URL)(val, this.rootpath); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.file, - index: this.index }; - } - - this.evaluating = true; - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { - this.evaluating = false; - return variable; - } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.file, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.debugInfo = function(env, ctx) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx)+tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/[\/:.]/g, '\\$&') + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -// -// browser.js - client-side engine -// - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - less.tree.functions[func] = less.functions[func]; - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -// -// Watch mode -// -less.watch = function () { - if (!less.watchMode ){ - less.env = 'development'; - initRunningMode(); - } - return this.watchMode = true -}; - -less.unwatch = function () {clearInterval(less.watchTimer); return this.watchMode = false; }; - -function initRunningMode(){ - if (less.env === 'development') { - less.optimization = 0; - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (e, root, _, sheet, env) { - if (root) { - createCSS(root.toCSS(), sheet, env.lastModified); - } - }); - } - }, less.poll); - } else { - less.optimization = 3; - } -} - -if (/!watch/.test(location.hash)) { - less.watch(); -} - -var cache = null; - -if (less.env != 'development') { - try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; - } catch (_) {} -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - -// -// With this function, it's possible to alter variables and re-render -// CSS without reloading less-files -// -var session_cache = ''; -less.modifyVars = function(record) { - var str = session_cache; - for (name in record) { - str += ((name.slice(0,1) === '@')? '' : '@') + name +': '+ - ((record[name].slice(-1) === ';')? record[name] : record[name] +';'); - } - new(less.Parser)().parse(str, function (e, root) { - createCSS(root.toCSS(), less.sheets[less.sheets.length - 1]); - }); -}; - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (e, root, _, sheet, env) { - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - new(less.Parser)({ - filename: document.location.href.replace(/#.*$/, ''), - dumpLineNumbers: less.dumpLineNumbers - }).parse(styles[i].innerHTML || '', function (e, tree) { - var css = tree.toCSS(); - var style = styles[i]; - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function pathDiff(url, baseUrl) { - // diff between two paths to create a relative path - - var urlParts = extractUrlParts(url), - baseUrlParts = extractUrlParts(baseUrl), - i, max, urlDirectories, baseUrlDirectories, diff = ""; - if (urlParts.hostPart !== baseUrlParts.hostPart) { - return ""; - } - max = Math.max(baseUrlParts.directories.length, urlParts.directories.length); - for(i = 0; i < max; i++) { - if (baseUrlParts.directories[i] !== urlParts.directories[i]) { break; } - } - baseUrlDirectories = baseUrlParts.directories.slice(i); - urlDirectories = urlParts.directories.slice(i); - for(i = 0; i < baseUrlDirectories.length-1; i++) { - diff += "../"; - } - for(i = 0; i < urlDirectories.length-1; i++) { - diff += urlDirectories[i] + "/"; - } - return diff; -} - -function extractUrlParts(url, baseUrl) { - // urlParts[1] = protocol&hostname || / - // urlParts[2] = / if path relative to host base - // urlParts[3] = directories - // urlParts[4] = filename - // urlParts[5] = parameters - - var urlPartsRegex = /^((?:[a-z-]+:)?\/\/(?:[^\/\?#]*\/)|([\/\\]))?((?:[^\/\\\?#]*[\/\\])*)([^\/\\\?#]*)([#\?].*)?$/, - urlParts = url.match(urlPartsRegex), - returner = {}, directories = [], i, baseUrlParts; - - if (!urlParts) { - throw new Error("Could not parse sheet href - '"+url+"'"); - } - - // Stylesheets in IE don't always return the full path - if (!urlParts[1] || urlParts[2]) { - baseUrlParts = baseUrl.match(urlPartsRegex); - if (!baseUrlParts) { - throw new Error("Could not parse page url - '"+baseUrl+"'"); - } - urlParts[1] = baseUrlParts[1]; - if (!urlParts[2]) { - urlParts[3] = baseUrlParts[3] + urlParts[3]; - } - } - - if (urlParts[3]) { - directories = urlParts[3].replace("\\", "/").split("/"); - - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".." && i > 0) { - directories.splice(i-1, 2); - i -= 2; - } - } - } - - returner.hostPart = urlParts[1]; - returner.directories = directories; - returner.path = urlParts[1] + directories.join("/"); - returner.fileUrl = returner.path + (urlParts[4] || ""); - returner.url = returner.fileUrl + (urlParts[5] || ""); - return returner; -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - // sheet may be set to the stylesheet for the initial load or a collection of properties including - // some env variables for imports - var contents = sheet.contents || {}; - var files = sheet.files || {}; - var hrefParts = extractUrlParts(sheet.href, window.location.href); - var href = hrefParts.url; - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - var rootpath; - - if (less.relativeUrls) { - if (less.rootpath) { - if (sheet.entryPath) { - rootpath = extractUrlParts(less.rootpath + pathDiff(hrefParts.path, sheet.entryPath)).path; - } else { - rootpath = less.rootpath; - } - } else { - rootpath = hrefParts.path; - } - } else { - if (less.rootpath) { - rootpath = less.rootpath; - } else { - if (sheet.entryPath) { - rootpath = sheet.entryPath; - } else { - rootpath = hrefParts.path; - } - } - } - - xhr(href, sheet.type, function (data, lastModified) { - // Store data this session - session_cache += data.replace(/@import .+?;/ig, ''); - - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, null, data, sheet, { local: true, remaining: remaining }, href); - } else { - // Use remote copy (re-parse) - try { - contents[href] = data; // Updating top importing parser content cache - new(less.Parser)({ - optimization: less.optimization, - paths: [hrefParts.path], - entryPath: sheet.entryPath || hrefParts.path, - mime: sheet.type, - filename: href, - rootpath: rootpath, - relativeUrls: sheet.relativeUrls, - contents: contents, // Passing top importing parser content cache ref down. - files: files, - dumpLineNumbers: less.dumpLineNumbers - }).parse(data, function (e, root) { - if (e) { return error(e, href) } - try { - callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining }, href); - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } catch (e) { - error(e, href); - } - }); - } catch (e) { - error(e, href); - } - } - }, function (status, url) { - throw new(Error)("Couldn't load " + url + " (" + status + ")"); - }); -} - -function extractId(href) { - return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - var css; - - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If the stylesheet doesn't exist, create a new node - if ((css = document.getElementById(id)) === null) { - css = document.createElement('style'); - css.type = 'text/css'; - if( sheet.media ){ css.media = sheet.media; } - css.id = id; - var nextEl = sheet && sheet.nextSibling || null; - (nextEl || document.getElementsByTagName('head')[0]).parentNode.insertBefore(css, nextEl); - } - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - (function (node) { - if (css.childNodes.length > 0) { - if (css.firstChild.nodeValue !== node.nodeValue) { - css.replaceChild(node, css.firstChild); - } - } else { - css.appendChild(node); - } - })(document.createTextNode(styles)); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save'); - } - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? less.fileAsync : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - if (isFileProtocol && !less.fileAsync) { - if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new(XMLHttpRequest); - } else { - try { - return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX."); - return null; - } - } -} - -function removeNode(node) { - return node && node.parentNode.removeChild(node); -} - -function log(str) { - if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } -} - -function error(e, href) { - var id = 'less-error-message:' + extractId(href); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, error = []; - var filename = e.filename || href; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.message || 'There is an error in your .less file') + - '

    ' + '

    in ' + filenameNoPath + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i]) { - error.push(template.replace(/\{line\}/, parseInt(e.line) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.stack) { - content += '
    ' + e.stack.split('\n').slice(1).join('
    '); - } else if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - '
      ' + error.join('') + '
    '; - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #dd6666;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.line {', - 'color: #ff0000;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); 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e.localStorage=="undefined"?null:e.localStorage}catch(c){}var h=document.getElementsByTagName("link"),p=/^text\/(x-)?less$/;r.sheets=[];for(var d=0;d current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - function isWhitespace(c) { - // Could change to \s? - var code = c.charCodeAt(0); - return code === 32 || code === 10 || code === 9; - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, index, k; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - endIndex = i + chunks[j].length, - mem = i += length; - - while (i < endIndex) { - if (! isWhitespace(input.charAt(i))) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, input) { - for (var n = index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input).line + 1); - this.callExtract = lines[getLocation(e.call, input).line]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length;) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - } - } - - switch (c) { - case '{': if (! inParam) { level ++; chunk.push(c); break } - case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } - case '(': if (! inParam) { inParam = true; chunk.push(c); break } - case ')': if ( inParam) { inParam = false; chunk.push(c); break } - default: chunk.push(c); - } - - i++; - } - if (level != 0) { - error = new(LessError)({ - index: i-1, - type: 'Parse', - message: (level > 0) ? "missing closing `}`" : "missing opening `{`", - filename: env.currentFileInfo.filename - }, env); - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - if (error) { - return callback(new(LessError)(error, env)); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - options = options || {}; - var importError, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var evaldRoot = evaluate.call(this, evalEnv); - - new(tree.joinSelectorVisitor)() - .run(evaldRoot); - - new(tree.processExtendsVisitor)() - .run(evaldRoot); - - var css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits)}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('ycssmin').cssmin(css, options.maxLineLen); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - callback(e); - } - else { - callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.extendRule) || $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/) || $(/^;+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null } - else { i += name.length } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted) || - $(this.entities.unicodeDescriptor); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var name, curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) return; - - if (value = $(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - if (ud = $(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/)) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList = []; - - if (!$(isRule ? /^&:extend\(/ : /^:extend\(/)) { return; } - - do { - option = null; - elements = []; - while (true) { - option = $(/^(all)(?=\s*(\)|,))/); - if (option) { break; } - e = $(this.element); - if (!e) { break; } - elements.push(e); - } - - option = option && option[1]; - - extendList.push(new(tree.Extend)(new(tree.Selector)(elements), option, index)); - - } while($(",")) - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, delim, arg, index = i, s = input.charAt(i), important = false; - - if (s !== '.' && s !== '#') { return } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - if ($('(')) { - args = this.mixin.args.call(this, true).args; - expect(')'); - } - - args = args || []; - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - - restore(); - }, - args: function (isCall) { - var expressions = [], argsSemiColon = [], isSemiColonSeperated, argsComma = [], expressionContainsNamed, name, nameLoop, value, arg, - returner = {args:null, variadic: false}; - while (true) { - if (isCall) { - arg = $(this.expression); - } else { - $(this.comment); - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value.length == 1) { - var val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(this.expression); - nameLoop = (name = val.name); - } else if (!isCall && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($(',')) { - continue; - } - - if ($(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new (tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - var argInfo = this.mixin.args.call(this, false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - $(this.comment); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) ||$(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^()@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(')) { - if ((v = ($(this.selector))) && - $(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, i) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|') { - i++; - while (input.charAt(i).match(/\s/)) { i++ } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match, extend, extendList = []; - - while ((extend = $(this.extend)) || (e = $(this.element))) { - if (extend) { - extendList.push.apply(extendList, extend); - } else { - if (extendList.length) { - error("Extend can only be used at the end of selector"); - } - c = input.charAt(i); - elements.push(e) - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements, extendList); } - if (extendList.length) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (!(key = $(this.entities.variableCurly))) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - if ((op = $(/^[|~*$^]?=/))) { - val = $(this.entities.quoted) || $(/^[\w-]+/) || $(this.entities.variableCurly); - } - - expect(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match, debugInfo; - - save(); - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) - ruleset.debugInfo = debugInfo; - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || (name.charAt(0) === '@')) ? - ($(this.value) || $(this.anonymousValue)) : - ($(this.anonymousValue) || $(this.value)); - - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } - }, - anonymousValue: function () { - if (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j])) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import?\s+/); - - var options = (dir ? $(this.importOptions) : null) || {}; - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $('(')) { return null; } - do { - if (o = $(this.importOption)) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $(',')) { break } - } - } while (o); - expect(')'); - return options; - }, - - importOption: function() { - var opt = $(/^(less|css|multiple|once)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.value); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features); - if(env.dumpLineNumbers) - media.debugInfo = debugInfo; - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, identifier, e, nodes, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - if (!name) return; - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - name += " " + ($(/^[^{]+/) || '').trim(); - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else { - if ((value = hasExpression ? $(this.expression) : $(this.entity)) && $(';')) { - var directive = new(tree.Directive)(name, value); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($('(')) { - if (a = $(this.addition)) { - e = new(tree.Expression)([a]); - expect(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced, expression = []; - if (m = $(this.operand)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while (!peek(/^\/[*\/]/) && (op = ($('/') || $('*')))) { - if (a = $(this.operand)) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } else { - break; - } - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - if (m = $(this.multiplication)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while ((op = $(/^[-+]\s+/) || (!isSpaced && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/) && (delim = $('/'))) { - entities.push(new(tree.Anonymous)(delim)); - } - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-z0-9-]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, currentFileInfo, callback, env) { - if (!/^([a-z-]+:)?\//.test(path) && currentFileInfo.currentDirectory) { - path = currentFileInfo.currentDirectory + path; - } - var sheetEnv = env.toSheet(path); - sheetEnv.processImports = false; - sheetEnv.currentFileInfo = currentFileInfo; - - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet(sheetEnv, - function (e, root, data, sheet, _, path) { - callback.call(null, e, root, path); - }, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 256); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if ((color.luma() * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return this._math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _math: function (fn, unit, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(fn(parseFloat(n.value)), unit == null ? n.unit : unit); - } else if (typeof(n) === 'number') { - return fn(n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - - /* Blending modes */ - - multiply: function(color1, color2) { - var r = color1.rgb[0] * color2.rgb[0] / 255; - var g = color1.rgb[1] * color2.rgb[1] / 255; - var b = color1.rgb[2] * color2.rgb[2] / 255; - return this.rgb(r, g, b); - }, - screen: function(color1, color2) { - var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - overlay: function(color1, color2) { - var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - softlight: function(color1, color2) { - var t = color2.rgb[0] * color1.rgb[0] / 255; - var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255; - t = color2.rgb[1] * color1.rgb[1] / 255; - var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255; - t = color2.rgb[2] * color1.rgb[2] / 255; - var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255; - return this.rgb(r, g, b); - }, - hardlight: function(color1, color2) { - var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255; - var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255; - var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - difference: function(color1, color2) { - var r = Math.abs(color1.rgb[0] - color2.rgb[0]); - var g = Math.abs(color1.rgb[1] - color2.rgb[1]); - var b = Math.abs(color1.rgb[2] - color2.rgb[2]); - return this.rgb(r, g, b); - }, - exclusion: function(color1, color2) { - var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255; - var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255; - var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - average: function(color1, color2) { - var r = (color1.rgb[0] + color2.rgb[0]) / 2; - var g = (color1.rgb[1] + color2.rgb[1]) / 2; - var b = (color1.rgb[2] + color2.rgb[2]) / 2; - return this.rgb(r, g, b); - }, - negation: function(color1, color2) { - var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]); - var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]); - var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]); - return this.rgb(r, g, b); - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - return values.value[index]; - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require("fs"), - path = require("path"), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) mimetype += ';base64'; - } - else { - useBase64 = /;base64$/.test(mimetype) - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } else if (!this.env.silent) { - // if explicitly disabled (via --no-ie-compat on CLI, or env.ieCompat === false), merely warn - console.warn("WARNING: Embedding %s (%dKB) exceeds IE8's data-uri size limit of %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "'data:" + mimetype + ',' + buf + "'"; - return new(tree.URL)(new(tree.Anonymous)(uri)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -var mathFunctions = [{name:"ceil"}, {name:"floor"}, {name: "sqrt"}, {name:"abs"}, - {name:"tan", unit: ""}, {name:"sin", unit: ""}, {name:"cos", unit: ""}, - {name:"atan", unit: "rad"}, {name:"asin", unit: "rad"}, {name:"acos", unit: "rad"}], - createMathFunction = function(name, unit) { - return function(n) { - if (unit != null) { - n = n.unify(); - } - return this._math(Math[name], unit, n); - }; - }; - -for(var i = 0; i < mathFunctions.length; i++) { - tree.functions[mathFunctions[i].name] = createMathFunction(mathFunctions[i].name, mathFunctions[i].unit); -} - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - // 'transparent':'rgba(0,0,0,0)', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - }, - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - toCSS: function () { - return this.value; - }, - eval: function () { return this }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - this.args = visitor.visit(this.args); - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS(env); }).join(', ') + ")"); - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - type: "Color", - eval: function () { return this }, - luma: function () { return (0.2126 * this.rgb[0] / 255) + (0.7152 * this.rgb[1] / 255) + (0.0722 * this.rgb[2] / 255); }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress; - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - - if (compress) { - color = color.split(''); - - // Convert color to short format - if (color[0] == color[1] && color[2] == color[3] && color[4] == color[5]) { - color = color[0] + color[2] + color[4]; - } else { - color = color.join(''); - } - } - - return '#' + color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - type: "Comment", - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function (env) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = this.value, - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && !this.unit.isAngle()) { - return strValue; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - return strValue + this.unit.toCSS(env); - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length == 0 && unit.denominator.length == 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a = this.unify(), b = other.unify(), - aValue = a.value, bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - if (!b.unit.isEmpty() && a.unit.compare(b.unit) !== 0) { - return -1; - } - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'm', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, conversion, targetUnit, derivedConversions = {}; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(function (atomicUnit, denominator) { - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - - toCSS: function (env) { - if (this.numerator.length >= 1) { - return this.numerator[0]; - } - if (this.denominator.length >= 1) { - return this.denominator[0]; - } - if ((!env || !env.strictUnits) && this.backupUnit) { - return this.backupUnit; - } - return ""; - }, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isAngle: function () { - return tree.UnitConversions.angle.hasOwnProperty(this.toCSS()); - }, - - isEmpty: function () { - return this.numerator.length == 0 && this.denominator.length == 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length == 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, groupName, result = {}; - - for (groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(function (atomicUnit) { - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - this.ruleset = visitor.visit(this.ruleset); - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - var evaldDirective = this; - if (this.ruleset) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name); - evaldDirective.ruleset = this.ruleset.eval(env); - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - this.combinator = visitor.visit(this.combinator); - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value == '' && this.combinator.value.charAt(0) == '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - toCSS: function (env) { - return { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ', - '|' : env.compress ? '|' : ' | ' - }[this.value]; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - }, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = []; - - for(i = 0; i < selectors.length; i++) { - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - var that = this; - - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined) { - this.css = !this.options.less; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.path = visitor.visit(this.path); - this.root = visitor.visit(this.root); - }, - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - return "@import " + this.path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && !(path instanceof tree.URL)) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath + pathValue; - } - } - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { return []; } - - if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - toCSS: function () { return this.value; }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.Media = function (value, features) { - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.ruleset = new(tree.Ruleset)(selectors, value); - this.ruleset.allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.ruleset = visitor.visit(this.ruleset); - }, - toCSS: function (env) { - var features = this.features.toCSS(env); - - return '@media ' + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - }, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)([], []); - if(this.debugInfo) { - this.ruleset.debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.ruleset); - media.ruleset = this.ruleset.eval(env); - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env) - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', 0); - return [new(tree.Selector)([el])]; - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.ruleset = new(tree.Ruleset)(selectors.slice(0), [this.ruleset]); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - this.arguments = visitor.visit(this.arguments); - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - if (mixin.matchArgs(args, env)) { - if (!mixin.matchCondition || mixin.matchCondition(args, env)) { - try { - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - match = true; - } - } - if (match) { - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")`", - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - this.params = visitor.visit(this.params); - this.rules = visitor.visit(this.rules); - this.condition = visitor.visit(this.condition); - }, - toCSS: function () { return ""; }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - var frame = new(tree.Ruleset)(null, []), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.rules.unshift(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) continue; - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.rules.unshift(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - context, rules, start, ruleset; - - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.parent.makeImportant.apply(this).rules : this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules).eval(new(tree.evalEnv)(env, - [this, frame].concat(mixinFrames))); - ruleset.originalRuleset = this; - return ruleset; - }, - matchCondition: function (args, env) { - - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] - .concat(env.frames)))) { - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (! this.variadic) { - if (argsLength < this.required) { return false } - if (argsLength > this.params.length) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - return '-' + this.value.toCSS(env); - }, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { type: "Operation", - message: "Can't substract or divide a color from a number" }; - } - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - toCSS: function (env) { - var separator = this.isSpaced ? " " : ""; - return this.operands[0].toCSS() + separator + this.op + separator + this.operands[1].toCSS(); - } -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - return '(' + this.value.toCSS(env).trim() + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - if (this.variable) { return "" } - else { - try { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - } - }, - eval: function (env) { - var strictMathBypass = false; - if (this.name === "font" && env.strictMath === false) { - strictMathBypass = true; - env.strictMath = true; - } - try { - return new(tree.Rule)(this.name, - this.value.eval(env), - this.important, - this.index, this.currentFileInfo, this.inline); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.index, this.currentFileInfo, this.inline); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - this.selectors = visitor.visit(this.selectors); - this.rules = visitor.visit(this.rules); - }, - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // currrent selectors - if (!env.selectors) { - env.selectors = []; - } - env.selectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - rules = ruleset.rules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - ruleset.rules.splice.apply(ruleset.rules, [i, 1].concat(rules)); - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - env.selectors.shift(); - - if (env.mediaBlocks) { - for(var i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var i, rules; - for (i = 0; i < this.rules.length; i++) { - if (this.rules[i] instanceof tree.Import) { - rules = this.rules[i].eval(env); - if (typeof rules.length === "number") { - this.rules.splice.apply(this.rules, [i, 1].concat(rules)); - i+= rules.length-1; - } else { - this.rules.splice(i, 1, rules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - return this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - _rules = [], // - rulesets = [], // node.Ruleset instances - selector, // The fully rendered selector - debugInfo, // Line number debugging - rule; - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Media)) { - rulesets.push(rule.toCSS(env)); - } else if (rule instanceof tree.Directive) { - var cssValue = rule.toCSS(env); - // Output only the first @charset definition as such - convert the others - // to comments in case debug is enabled - if (rule.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (env.charset) { - if (rule.debugInfo) { - rulesets.push(tree.debugInfo(env, rule)); - rulesets.push(new tree.Comment("/* "+cssValue.replace(/\n/g, "")+" */\n").toCSS(env)); - } - continue; - } - env.charset = true; - } - rulesets.push(cssValue); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - if (this.firstRoot && rule instanceof tree.Rule) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: rule.index, filename: rule.currentFileInfo ? rule.currentFileInfo.filename : null}; - } - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - // Remove last semicolon - if (env.compress && rules.length) { - rule = rules[rules.length - 1]; - if (rule.charAt(rule.length - 1) === ';') { - rules[rules.length - 1] = rule.substring(0, rule.length - 1); - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - debugInfo = tree.debugInfo(env, this); - selector = this.paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : ',\n'); - - // Remove duplicates - for (var i = rules.length - 1; i >= 0; i--) { - if (rules[i].slice(0, 2) === "/*" || _rules.indexOf(rules[i]) === -1) { - _rules.unshift(rules[i]); - } - } - rules = _rules; - - css.push(debugInfo + selector + - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for(i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for(j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length == 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0)); //new Element(el.Combinator, "")); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for(k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = new(tree.Selector)(lastSelector.elements.slice(0), selector.extendList); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = new(tree.Selector)([], selector.extendList); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, 0)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for(i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel, extendList; - - if (selectors.length == 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for(i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = new(tree.Selector)(sel[sel.length - 1].elements.concat(elements), sel[sel.length - 1].extendList); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements, extendList) { - this.elements = elements; - this.extendList = extendList || []; -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - this.elements = visitor.visit(this.elements); - this.extendList = visitor.visit(this.extendList) - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, max, i; - - oelements = other.elements.slice( - (other.elements.length && other.elements[0].value === "&") ? 1 : 0); - olen = oelements.length; - max = Math.min(len, olen); - - if (olen === 0 || len < olen) { - return false; - } else { - for (i = 0; i < max; i++) { - if (elements[i].value !== oelements[i].value) { - return false; - } - } - } - return true; - }, - eval: function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - }), this.extendList.map(function(extend) { - return extend.eval(env); - })); - }, - toCSS: function (env) { - if (this._css) { return this._css } - - if (this.elements[0].combinator.value === "") { - this._css = ' '; - } else { - this._css = ''; - } - - this._css += this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); - - return this._css; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, currentFileInfo) { - this.value = val; - this.currentFileInfo = currentFileInfo; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function () { - return "url(" + this.value.toCSS() + ")"; - }, - eval: function (ctx) { - var val = this.value.eval(ctx), rootpath; - - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - return new(tree.URL)(val, null); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { this.name = name, this.index = index, this.currentFileInfo = currentFileInfo }; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { - this.evaluating = false; - return variable; - } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.debugInfo = function(env, ctx) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx)+tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:/\\])/g, function(a){if(a=='\\') a = '\/'; return '\\' + a}) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // browser-only, contents of all the files - 'relativeUrls', // option - whether to adjust URL's to be relative - 'strictImports', // option - - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'mime', // browser only - mime type for sheet import - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' = absolute path to the entry file - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = options.filename || "input"; - options.filename = null; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: options.rootpath || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - tree.parseEnv.prototype.toSheet = function (path) { - var env = new tree.parseEnv(this); - env.href = path; - //env.title = path; - env.type = this.mime; - return env; - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits' // whether units need to evaluate correctly - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - } -})(require('./tree'));(function (tree) { - - tree.visitor = function(implementation) { - this._implementation = implementation; - }; - - tree.visitor.prototype = { - visit: function(node) { - - if (node instanceof Array) { - return this.visitArray(node); - } - - if (!node || !node.type) { - return node; - } - - var funcName = "visit" + node.type, - func = this._implementation[funcName], - visitArgs, newNode; - if (func) { - visitArgs = {visitDeeper: true}; - newNode = func.call(this._implementation, node, visitArgs); - if (this._implementation.isReplacing) { - node = newNode; - } - } - if ((!visitArgs || visitArgs.visitDeeper) && node && node.accept) { - node.accept(this); - } - funcName = funcName + "Out"; - if (this._implementation[funcName]) { - this._implementation[funcName](node); - } - return node; - }, - visitArray: function(nodes) { - var i, newNodes = []; - for(i = 0; i < nodes.length; i++) { - var evald = this.visit(nodes[i]); - if (evald instanceof Array) { - newNodes = newNodes.concat(evald); - } else { - newNodes.push(evald); - } - } - if (this._implementation.isReplacing) { - return newNodes; - } - return nodes; - } - }; - -})(require('./tree'));(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode; - - if (!importNode.css) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && !evaldImportNode.css) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - this._importer.push(importNode.getPath(), importNode.currentFileInfo, function (e, root, imported) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - if (imported && !importNode.options.multiple) { importNode.skip = imported; } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - new(tree.importVisitor)(importVisitor._importer, subFinish, env) - .run(root); - } else { - subFinish(); - } - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree'));(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - var paths = []; - this.contexts.push(paths); - - if (! rulesetNode.root) { - rulesetNode.joinSelectors(paths, context, rulesetNode.selectors); - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.ruleset.root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree'));(function (tree) { - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - for(i = 0; i < rulesetNode.rules.length; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rulesetNode.rules[i]); - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - for(i = 0; i < rulesetNode.paths.length; i++) { - var selectorPath = rulesetNode.paths[i], - selector = selectorPath[selectorPath.length-1]; - extendList = selector.extendList.slice(0).concat(allSelectorsExtendList).map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if (this.inInheritanceChain(targetExtend, extend)) { continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parents = [targetExtend, extend]; - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - inInheritanceChain: function (possibleParent, possibleChild) { - if (possibleParent === possibleChild) { - return true; - } - if (possibleChild.parents) { - if (this.inInheritanceChain(possibleParent, possibleChild.parents[0])) { - return true; - } - if (this.inInheritanceChain(possibleParent, possibleChild.parents[1])) { - return true; - } - } - return false; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (selectorPath[selectorPath.length-1].extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex == 0 && hackstackElementIndex == 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator == '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - return false; - }, - extendSelector:function (matches, selectorPath, replacementSelector) { - - //for a set of matches, replace each match with the replacement selector - - var currentSelectorPathIndex = 0, - currentSelectorPathElementIndex = 0, - path = [], - matchIndex, - selector, - firstElement; - - for (matchIndex = 0; matchIndex < matches.length; matchIndex++) { - match = matches[matchIndex]; - selector = selectorPath[match.pathIndex]; - firstElement = new tree.Element( - match.initialCombinator, - replacementSelector.elements[0].value, - replacementSelector.elements[0].index - ); - - if (match.pathIndex > currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)) - )); - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selector.elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree'));// -// browser.js - client-side engine -// - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - less.tree.functions[func] = less.functions[func]; - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -// -// Watch mode -// -less.watch = function () { - if (!less.watchMode ){ - less.env = 'development'; - initRunningMode(); - } - return this.watchMode = true -}; - -less.unwatch = function () {clearInterval(less.watchTimer); return this.watchMode = false; }; - -function initRunningMode(){ - if (less.env === 'development') { - less.optimization = 0; - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (e, root, _, sheet, env) { - if (e) { - error(e, sheet.href); - } else if (root) { - createCSS(root.toCSS(less), sheet, env.lastModified); - } - }); - } - }, less.poll); - } else { - less.optimization = 3; - } -} - -if (/!watch/.test(location.hash)) { - less.watch(); -} - -var cache = null; - -if (less.env != 'development') { - try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; - } catch (_) {} -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - -// -// With this function, it's possible to alter variables and re-render -// CSS without reloading less-files -// -var session_cache = ''; -less.modifyVars = function(record) { - var str = session_cache; - for (name in record) { - str += ((name.slice(0,1) === '@')? '' : '@') + name +': '+ - ((record[name].slice(-1) === ';')? record[name] : record[name] +';'); - } - new(less.Parser)(new less.tree.parseEnv(less)).parse(str, function (e, root) { - if (e) { - error(e, "session_cache"); - } else { - createCSS(root.toCSS(less), less.sheets[less.sheets.length - 1]); - } - }); -}; - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (e, root, _, sheet, env) { - if (e) { - return error(e, sheet.href); - } - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(less), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - var env = new less.tree.parseEnv(less); - env.filename = document.location.href.replace(/#.*$/, ''); - - new(less.Parser)(env).parse(styles[i].innerHTML || '', function (e, cssAST) { - if (e) { - return error(e, "inline"); - } - var css = cssAST.toCSS(less); - var style = styles[i]; - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function pathDiff(url, baseUrl) { - // diff between two paths to create a relative path - - var urlParts = extractUrlParts(url), - baseUrlParts = extractUrlParts(baseUrl), - i, max, urlDirectories, baseUrlDirectories, diff = ""; - if (urlParts.hostPart !== baseUrlParts.hostPart) { - return ""; - } - max = Math.max(baseUrlParts.directories.length, urlParts.directories.length); - for(i = 0; i < max; i++) { - if (baseUrlParts.directories[i] !== urlParts.directories[i]) { break; } - } - baseUrlDirectories = baseUrlParts.directories.slice(i); - urlDirectories = urlParts.directories.slice(i); - for(i = 0; i < baseUrlDirectories.length-1; i++) { - diff += "../"; - } - for(i = 0; i < urlDirectories.length-1; i++) { - diff += urlDirectories[i] + "/"; - } - return diff; -} - -function extractUrlParts(url, baseUrl) { - // urlParts[1] = protocol&hostname || / - // urlParts[2] = / if path relative to host base - // urlParts[3] = directories - // urlParts[4] = filename - // urlParts[5] = parameters - - var urlPartsRegex = /^((?:[a-z-]+:)?\/+?(?:[^\/\?#]*\/)|([\/\\]))?((?:[^\/\\\?#]*[\/\\])*)([^\/\\\?#]*)([#\?].*)?$/, - urlParts = url.match(urlPartsRegex), - returner = {}, directories = [], i, baseUrlParts; - - if (!urlParts) { - throw new Error("Could not parse sheet href - '"+url+"'"); - } - - // Stylesheets in IE don't always return the full path - if (!urlParts[1] || urlParts[2]) { - baseUrlParts = baseUrl.match(urlPartsRegex); - if (!baseUrlParts) { - throw new Error("Could not parse page url - '"+baseUrl+"'"); - } - urlParts[1] = urlParts[1] || baseUrlParts[1] || ""; - if (!urlParts[2]) { - urlParts[3] = baseUrlParts[3] + urlParts[3]; - } - } - - if (urlParts[3]) { - directories = urlParts[3].replace("\\", "/").split("/"); - - // extract out . before .. so .. doesn't absorb a non-directory - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".") { - directories.splice(i, 1); - i -= 1; - } - } - - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".." && i > 0) { - directories.splice(i-1, 2); - i -= 2; - } - } - } - - returner.hostPart = urlParts[1]; - returner.directories = directories; - returner.path = urlParts[1] + directories.join("/"); - returner.fileUrl = returner.path + (urlParts[4] || ""); - returner.url = returner.fileUrl + (urlParts[5] || ""); - return returner; -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - - // sheet may be set to the stylesheet for the initial load or a collection of properties including - // some env variables for imports - var hrefParts = extractUrlParts(sheet.href, window.location.href); - var href = hrefParts.url; - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - var env; - var newFileInfo = { - relativeUrls: less.relativeUrls, - currentDirectory: hrefParts.path, - filename: href - }; - - if (sheet instanceof less.tree.parseEnv) { - env = new less.tree.parseEnv(sheet); - newFileInfo.entryPath = env.currentFileInfo.entryPath; - newFileInfo.rootpath = env.currentFileInfo.rootpath; - newFileInfo.rootFilename = env.currentFileInfo.rootFilename; - } else { - env = new less.tree.parseEnv(less); - env.mime = sheet.type; - newFileInfo.entryPath = hrefParts.path; - newFileInfo.rootpath = less.rootpath || hrefParts.path; - newFileInfo.rootFilename = href; - } - - if (env.relativeUrls) { - //todo - this relies on option being set on less object rather than being passed in as an option - // - need an originalRootpath - if (less.rootpath) { - newFileInfo.rootpath = extractUrlParts(less.rootpath + pathDiff(hrefParts.path, newFileInfo.entryPath)).path; - } else { - newFileInfo.rootpath = hrefParts.path; - } - } - - xhr(href, sheet.type, function (data, lastModified) { - // Store data this session - session_cache += data.replace(/@import .+?;/ig, ''); - - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, null, data, sheet, { local: true, remaining: remaining }, href); - } else { - // Use remote copy (re-parse) - try { - env.contents[href] = data; // Updating content cache - env.paths = [hrefParts.path]; - env.currentFileInfo = newFileInfo; - - new(less.Parser)(env).parse(data, function (e, root) { - if (e) { return callback(e, null, null, sheet); } - try { - callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining }, href); - //TODO - there must be a better way? A generic less-to-css function that can both call error - //and removeNode where appropriate - //should also add tests - if (env.currentFileInfo.rootFilename === href) { - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } - } catch (e) { - callback(e, null, null, sheet); - } - }); - } catch (e) { - callback(e, null, null, sheet); - } - } - }, function (status, url) { - callback({ type: 'File', message: "'" + url + "' wasn't found (" + status + ")" }, null, null, sheet); - }); -} - -function extractId(href) { - return href.replace(/^[a-z-]+:\/+?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If this has already been inserted into the DOM, we may need to replace it - var oldCss = document.getElementById(id); - var keepOldCss = false; - - // Create a new stylesheet node for insertion or (if necessary) replacement - var css = document.createElement('style'); - css.setAttribute('type', 'text/css'); - if (sheet.media) { - css.setAttribute('media', sheet.media); - } - css.id = id; - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - css.appendChild(document.createTextNode(styles)); - - // If new contents match contents of oldCss, don't replace oldCss - keepOldCss = (oldCss !== null && oldCss.childNodes.length > 0 && css.childNodes.length > 0 && - oldCss.firstChild.nodeValue === css.firstChild.nodeValue); - } - - var head = document.getElementsByTagName('head')[0]; - - // If there is no oldCss, just append; otherwise, only append if we need - // to replace oldCss with an updated stylesheet - if (oldCss == null || keepOldCss === false) { - var nextEl = sheet && sheet.nextSibling || null; - (nextEl || document.getElementsByTagName('head')[0]).parentNode.insertBefore(css, nextEl); - } - if (oldCss && keepOldCss === false) { - head.removeChild(oldCss); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save'); - } - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? less.fileAsync : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - if (isFileProtocol && !less.fileAsync) { - if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new(XMLHttpRequest); - } else { - try { - return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX."); - return null; - } - } -} - -function removeNode(node) { - return node && node.parentNode.removeChild(node); -} - -function log(str) { - if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } -} - -function error(e, rootHref) { - var id = 'less-error-message:' + extractId(rootHref || ""); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, error = []; - var filename = e.filename || rootHref; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - '

    ' + '

    in ' + filenameNoPath + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] != undefined) { - error.push(template.replace(/\{line\}/, (parseInt(e.line) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - '
      ' + error.join('') + '
    '; - } else if (e.stack) { - content += '
    ' + e.stack.split('\n').slice(1).join('
    '); - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #dd6666;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.line {', - 'color: #ff0000;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); 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(input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input).line + 1); - this.callExtract = lines[getLocation(e.call, input).line]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length;) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - } - } - - switch (c) { - case '{': if (! inParam) { level ++; chunk.push(c); break } - case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } - case '(': if (! inParam) { inParam = true; chunk.push(c); break } - case ')': if ( inParam) { inParam = false; chunk.push(c); break } - default: chunk.push(c); - } - - i++; - } - if (level != 0) { - error = new(LessError)({ - index: i-1, - type: 'Parse', - message: (level > 0) ? "missing closing `}`" : "missing opening `{`", - filename: env.currentFileInfo.filename - }, env); - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - if (error) { - return callback(new(LessError)(error, env)); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - options = options || {}; - var importError, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var evaldRoot = evaluate.call(this, evalEnv); - - new(tree.joinSelectorVisitor)() - .run(evaldRoot); - - new(tree.processExtendsVisitor)() - .run(evaldRoot); - - var css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits)}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('ycssmin').cssmin(css, options.maxLineLen); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - callback(e); - } - else { - callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.extendRule) || $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/) || $(/^;+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null } - else { i += name.length } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted) || - $(this.entities.unicodeDescriptor); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var name, curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) return; - - if (value = $(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - if (ud = $(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/)) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList = []; - - if (!$(isRule ? /^&:extend\(/ : /^:extend\(/)) { return; } - - do { - option = null; - elements = []; - while (true) { - option = $(/^(all)(?=\s*(\)|,))/); - if (option) { break; } - e = $(this.element); - if (!e) { break; } - elements.push(e); - } - - option = option && option[1]; - - extendList.push(new(tree.Extend)(new(tree.Selector)(elements), option, index)); - - } while($(",")) - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, delim, arg, index = i, s = input.charAt(i), important = false; - - if (s !== '.' && s !== '#') { return } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - if ($('(')) { - args = this.mixin.args.call(this, true).args; - expect(')'); - } - - args = args || []; - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - - restore(); - }, - args: function (isCall) { - var expressions = [], argsSemiColon = [], isSemiColonSeperated, argsComma = [], expressionContainsNamed, name, nameLoop, value, arg, - returner = {args:null, variadic: false}; - while (true) { - if (isCall) { - arg = $(this.expression); - } else { - $(this.comment); - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value.length == 1) { - var val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(this.expression); - nameLoop = (name = val.name); - } else if (!isCall && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($(',')) { - continue; - } - - if ($(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new (tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - var argInfo = this.mixin.args.call(this, false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - $(this.comment); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) ||$(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^()@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(')) { - if ((v = ($(this.selector))) && - $(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, i) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|') { - i++; - while (input.charAt(i).match(/\s/)) { i++ } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match, extend, extendList = []; - - while ((extend = $(this.extend)) || (e = $(this.element))) { - if (extend) { - extendList.push.apply(extendList, extend); - } else { - if (extendList.length) { - error("Extend can only be used at the end of selector"); - } - c = input.charAt(i); - elements.push(e) - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements, extendList); } - if (extendList.length) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (!(key = $(this.entities.variableCurly))) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - if ((op = $(/^[|~*$^]?=/))) { - val = $(this.entities.quoted) || $(/^[\w-]+/) || $(this.entities.variableCurly); - } - - expect(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match, debugInfo; - - save(); - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) - ruleset.debugInfo = debugInfo; - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || (name.charAt(0) === '@')) ? - ($(this.value) || $(this.anonymousValue)) : - ($(this.anonymousValue) || $(this.value)); - - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } - }, - anonymousValue: function () { - if (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j])) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import?\s+/); - - var options = (dir ? $(this.importOptions) : null) || {}; - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $('(')) { return null; } - do { - if (o = $(this.importOption)) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $(',')) { break } - } - } while (o); - expect(')'); - return options; - }, - - importOption: function() { - var opt = $(/^(less|css|multiple|once)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.value); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features); - if(env.dumpLineNumbers) - media.debugInfo = debugInfo; - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, identifier, e, nodes, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - if (!name) return; - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - name += " " + ($(/^[^{]+/) || '').trim(); - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else { - if ((value = hasExpression ? $(this.expression) : $(this.entity)) && $(';')) { - var directive = new(tree.Directive)(name, value); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($('(')) { - if (a = $(this.addition)) { - e = new(tree.Expression)([a]); - expect(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced, expression = []; - if (m = $(this.operand)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while (!peek(/^\/[*\/]/) && (op = ($('/') || $('*')))) { - if (a = $(this.operand)) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } else { - break; - } - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - if (m = $(this.multiplication)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while ((op = $(/^[-+]\s+/) || (!isSpaced && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/) && (delim = $('/'))) { - entities.push(new(tree.Anonymous)(delim)); - } - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-z0-9-]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, currentFileInfo, callback, env) { - if (!/^([a-z-]+:)?\//.test(path) && currentFileInfo.currentDirectory) { - path = currentFileInfo.currentDirectory + path; - } - var sheetEnv = env.toSheet(path); - sheetEnv.processImports = false; - sheetEnv.currentFileInfo = currentFileInfo; - - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet(sheetEnv, - function (e, root, data, sheet, _, path) { - callback.call(null, e, root, path); - }, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 256); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if ((color.luma() * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return this._math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _math: function (fn, unit, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(fn(parseFloat(n.value)), unit == null ? n.unit : unit); - } else if (typeof(n) === 'number') { - return fn(n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - - /* Blending modes */ - - multiply: function(color1, color2) { - var r = color1.rgb[0] * color2.rgb[0] / 255; - var g = color1.rgb[1] * color2.rgb[1] / 255; - var b = color1.rgb[2] * color2.rgb[2] / 255; - return this.rgb(r, g, b); - }, - screen: function(color1, color2) { - var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - overlay: function(color1, color2) { - var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - softlight: function(color1, color2) { - var t = color2.rgb[0] * color1.rgb[0] / 255; - var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255; - t = color2.rgb[1] * color1.rgb[1] / 255; - var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255; - t = color2.rgb[2] * color1.rgb[2] / 255; - var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255; - return this.rgb(r, g, b); - }, - hardlight: function(color1, color2) { - var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255; - var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255; - var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - difference: function(color1, color2) { - var r = Math.abs(color1.rgb[0] - color2.rgb[0]); - var g = Math.abs(color1.rgb[1] - color2.rgb[1]); - var b = Math.abs(color1.rgb[2] - color2.rgb[2]); - return this.rgb(r, g, b); - }, - exclusion: function(color1, color2) { - var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255; - var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255; - var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - average: function(color1, color2) { - var r = (color1.rgb[0] + color2.rgb[0]) / 2; - var g = (color1.rgb[1] + color2.rgb[1]) / 2; - var b = (color1.rgb[2] + color2.rgb[2]) / 2; - return this.rgb(r, g, b); - }, - negation: function(color1, color2) { - var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]); - var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]); - var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]); - return this.rgb(r, g, b); - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - return values.value[index]; - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require("fs"), - path = require("path"), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) mimetype += ';base64'; - } - else { - useBase64 = /;base64$/.test(mimetype) - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } else if (!this.env.silent) { - // if explicitly disabled (via --no-ie-compat on CLI, or env.ieCompat === false), merely warn - console.warn("WARNING: Embedding %s (%dKB) exceeds IE8's data-uri size limit of %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "'data:" + mimetype + ',' + buf + "'"; - return new(tree.URL)(new(tree.Anonymous)(uri)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -var mathFunctions = [{name:"ceil"}, {name:"floor"}, {name: "sqrt"}, {name:"abs"}, - {name:"tan", unit: ""}, {name:"sin", unit: ""}, {name:"cos", unit: ""}, - {name:"atan", unit: "rad"}, {name:"asin", unit: "rad"}, {name:"acos", unit: "rad"}], - createMathFunction = function(name, unit) { - return function(n) { - if (unit != null) { - n = n.unify(); - } - return this._math(Math[name], unit, n); - }; - }; - -for(var i = 0; i < mathFunctions.length; i++) { - tree.functions[mathFunctions[i].name] = createMathFunction(mathFunctions[i].name, mathFunctions[i].unit); -} - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - // 'transparent':'rgba(0,0,0,0)', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - }, - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - toCSS: function () { - return this.value; - }, - eval: function () { return this }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - this.args = visitor.visit(this.args); - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS(env); }).join(', ') + ")"); - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - type: "Color", - eval: function () { return this }, - luma: function () { return (0.2126 * this.rgb[0] / 255) + (0.7152 * this.rgb[1] / 255) + (0.0722 * this.rgb[2] / 255); }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress; - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - - if (compress) { - color = color.split(''); - - // Convert color to short format - if (color[0] == color[1] && color[2] == color[3] && color[4] == color[5]) { - color = color[0] + color[2] + color[4]; - } else { - color = color.join(''); - } - } - - return '#' + color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - type: "Comment", - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function (env) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = this.value, - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && !this.unit.isAngle()) { - return strValue; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - return strValue + this.unit.toCSS(env); - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length == 0 && unit.denominator.length == 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a = this.unify(), b = other.unify(), - aValue = a.value, bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - if (!b.unit.isEmpty() && a.unit.compare(b.unit) !== 0) { - return -1; - } - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'm', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, conversion, targetUnit, derivedConversions = {}; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(function (atomicUnit, denominator) { - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - - toCSS: function (env) { - if (this.numerator.length >= 1) { - return this.numerator[0]; - } - if (this.denominator.length >= 1) { - return this.denominator[0]; - } - if ((!env || !env.strictUnits) && this.backupUnit) { - return this.backupUnit; - } - return ""; - }, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isAngle: function () { - return tree.UnitConversions.angle.hasOwnProperty(this.toCSS()); - }, - - isEmpty: function () { - return this.numerator.length == 0 && this.denominator.length == 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length == 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, groupName, result = {}; - - for (groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(function (atomicUnit) { - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - this.ruleset = visitor.visit(this.ruleset); - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - var evaldDirective = this; - if (this.ruleset) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name); - evaldDirective.ruleset = this.ruleset.eval(env); - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - this.combinator = visitor.visit(this.combinator); - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value == '' && this.combinator.value.charAt(0) == '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - toCSS: function (env) { - return { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ', - '|' : env.compress ? '|' : ' | ' - }[this.value]; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - }, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = []; - - for(i = 0; i < selectors.length; i++) { - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - var that = this; - - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined) { - this.css = !this.options.less; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.path = visitor.visit(this.path); - this.root = visitor.visit(this.root); - }, - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - return "@import " + this.path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && !(path instanceof tree.URL)) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath + pathValue; - } - } - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { return []; } - - if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - toCSS: function () { return this.value; }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.Media = function (value, features) { - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.ruleset = new(tree.Ruleset)(selectors, value); - this.ruleset.allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.ruleset = visitor.visit(this.ruleset); - }, - toCSS: function (env) { - var features = this.features.toCSS(env); - - return '@media ' + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - }, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)([], []); - if(this.debugInfo) { - this.ruleset.debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.ruleset); - media.ruleset = this.ruleset.eval(env); - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env) - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', 0); - return [new(tree.Selector)([el])]; - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.ruleset = new(tree.Ruleset)(selectors.slice(0), [this.ruleset]); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - this.arguments = visitor.visit(this.arguments); - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - if (mixin.matchArgs(args, env)) { - if (!mixin.matchCondition || mixin.matchCondition(args, env)) { - try { - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - match = true; - } - } - if (match) { - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")`", - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - this.params = visitor.visit(this.params); - this.rules = visitor.visit(this.rules); - this.condition = visitor.visit(this.condition); - }, - toCSS: function () { return ""; }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - var frame = new(tree.Ruleset)(null, []), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.rules.unshift(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) continue; - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.rules.unshift(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - context, rules, start, ruleset; - - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.parent.makeImportant.apply(this).rules : this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules).eval(new(tree.evalEnv)(env, - [this, frame].concat(mixinFrames))); - ruleset.originalRuleset = this; - return ruleset; - }, - matchCondition: function (args, env) { - - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] - .concat(env.frames)))) { - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (! this.variadic) { - if (argsLength < this.required) { return false } - if (argsLength > this.params.length) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - return '-' + this.value.toCSS(env); - }, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { type: "Operation", - message: "Can't substract or divide a color from a number" }; - } - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - toCSS: function (env) { - var separator = this.isSpaced ? " " : ""; - return this.operands[0].toCSS() + separator + this.op + separator + this.operands[1].toCSS(); - } -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - return '(' + this.value.toCSS(env).trim() + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - if (this.variable) { return "" } - else { - try { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - } - }, - eval: function (env) { - var strictMathBypass = false; - if (this.name === "font" && env.strictMath === false) { - strictMathBypass = true; - env.strictMath = true; - } - try { - return new(tree.Rule)(this.name, - this.value.eval(env), - this.important, - this.index, this.currentFileInfo, this.inline); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.index, this.currentFileInfo, this.inline); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - this.selectors = visitor.visit(this.selectors); - this.rules = visitor.visit(this.rules); - }, - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // currrent selectors - if (!env.selectors) { - env.selectors = []; - } - env.selectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - rules = ruleset.rules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - ruleset.rules.splice.apply(ruleset.rules, [i, 1].concat(rules)); - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - env.selectors.shift(); - - if (env.mediaBlocks) { - for(var i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var i, rules; - for (i = 0; i < this.rules.length; i++) { - if (this.rules[i] instanceof tree.Import) { - rules = this.rules[i].eval(env); - if (typeof rules.length === "number") { - this.rules.splice.apply(this.rules, [i, 1].concat(rules)); - i+= rules.length-1; - } else { - this.rules.splice(i, 1, rules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - return this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - _rules = [], // - rulesets = [], // node.Ruleset instances - selector, // The fully rendered selector - debugInfo, // Line number debugging - rule; - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Media)) { - rulesets.push(rule.toCSS(env)); - } else if (rule instanceof tree.Directive) { - var cssValue = rule.toCSS(env); - // Output only the first @charset definition as such - convert the others - // to comments in case debug is enabled - if (rule.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (env.charset) { - if (rule.debugInfo) { - rulesets.push(tree.debugInfo(env, rule)); - rulesets.push(new tree.Comment("/* "+cssValue.replace(/\n/g, "")+" */\n").toCSS(env)); - } - continue; - } - env.charset = true; - } - rulesets.push(cssValue); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - if (this.firstRoot && rule instanceof tree.Rule) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: rule.index, filename: rule.currentFileInfo ? rule.currentFileInfo.filename : null}; - } - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - // Remove last semicolon - if (env.compress && rules.length) { - rule = rules[rules.length - 1]; - if (rule.charAt(rule.length - 1) === ';') { - rules[rules.length - 1] = rule.substring(0, rule.length - 1); - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - debugInfo = tree.debugInfo(env, this); - selector = this.paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : ',\n'); - - // Remove duplicates - for (var i = rules.length - 1; i >= 0; i--) { - if (rules[i].slice(0, 2) === "/*" || _rules.indexOf(rules[i]) === -1) { - _rules.unshift(rules[i]); - } - } - rules = _rules; - - css.push(debugInfo + selector + - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for(i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for(j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length == 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0)); //new Element(el.Combinator, "")); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for(k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = new(tree.Selector)(lastSelector.elements.slice(0), selector.extendList); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = new(tree.Selector)([], selector.extendList); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, 0)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for(i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel, extendList; - - if (selectors.length == 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for(i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = new(tree.Selector)(sel[sel.length - 1].elements.concat(elements), sel[sel.length - 1].extendList); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements, extendList) { - this.elements = elements; - this.extendList = extendList || []; -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - this.elements = visitor.visit(this.elements); - this.extendList = visitor.visit(this.extendList) - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, max, i; - - oelements = other.elements.slice( - (other.elements.length && other.elements[0].value === "&") ? 1 : 0); - olen = oelements.length; - max = Math.min(len, olen); - - if (olen === 0 || len < olen) { - return false; - } else { - for (i = 0; i < max; i++) { - if (elements[i].value !== oelements[i].value) { - return false; - } - } - } - return true; - }, - eval: function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - }), this.extendList.map(function(extend) { - return extend.eval(env); - })); - }, - toCSS: function (env) { - if (this._css) { return this._css } - - if (this.elements[0].combinator.value === "") { - this._css = ' '; - } else { - this._css = ''; - } - - this._css += this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); - - return this._css; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, currentFileInfo) { - this.value = val; - this.currentFileInfo = currentFileInfo; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function () { - return "url(" + this.value.toCSS() + ")"; - }, - eval: function (ctx) { - var val = this.value.eval(ctx), rootpath; - - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - return new(tree.URL)(val, null); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { this.name = name, this.index = index, this.currentFileInfo = currentFileInfo }; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { - this.evaluating = false; - return variable; - } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.debugInfo = function(env, ctx) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx)+tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:/\\])/g, function(a){if(a=='\\') a = '\/'; return '\\' + a}) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // browser-only, contents of all the files - 'relativeUrls', // option - whether to adjust URL's to be relative - 'strictImports', // option - - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'mime', // browser only - mime type for sheet import - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' = absolute path to the entry file - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = options.filename || "input"; - options.filename = null; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: options.rootpath || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - tree.parseEnv.prototype.toSheet = function (path) { - var env = new tree.parseEnv(this); - env.href = path; - //env.title = path; - env.type = this.mime; - return env; - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits' // whether units need to evaluate correctly - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - } -})(require('./tree'));(function (tree) { - - tree.visitor = function(implementation) { - this._implementation = implementation; - }; - - tree.visitor.prototype = { - visit: function(node) { - - if (node instanceof Array) { - return this.visitArray(node); - } - - if (!node || !node.type) { - return node; - } - - var funcName = "visit" + node.type, - func = this._implementation[funcName], - visitArgs, newNode; - if (func) { - visitArgs = {visitDeeper: true}; - newNode = func.call(this._implementation, node, visitArgs); - if (this._implementation.isReplacing) { - node = newNode; - } - } - if ((!visitArgs || visitArgs.visitDeeper) && node && node.accept) { - node.accept(this); - } - funcName = funcName + "Out"; - if (this._implementation[funcName]) { - this._implementation[funcName](node); - } - return node; - }, - visitArray: function(nodes) { - var i, newNodes = []; - for(i = 0; i < nodes.length; i++) { - var evald = this.visit(nodes[i]); - if (evald instanceof Array) { - newNodes = newNodes.concat(evald); - } else { - newNodes.push(evald); - } - } - if (this._implementation.isReplacing) { - return newNodes; - } - return nodes; - } - }; - -})(require('./tree'));(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode; - - if (!importNode.css) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && !evaldImportNode.css) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - this._importer.push(importNode.getPath(), importNode.currentFileInfo, function (e, root, imported) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - if (imported && !importNode.options.multiple) { importNode.skip = imported; } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - new(tree.importVisitor)(importVisitor._importer, subFinish, env) - .run(root); - } else { - subFinish(); - } - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree'));(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - var paths = []; - this.contexts.push(paths); - - if (! rulesetNode.root) { - rulesetNode.joinSelectors(paths, context, rulesetNode.selectors); - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.ruleset.root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree'));(function (tree) { - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - for(i = 0; i < rulesetNode.rules.length; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rulesetNode.rules[i]); - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - for(i = 0; i < rulesetNode.paths.length; i++) { - var selectorPath = rulesetNode.paths[i], - selector = selectorPath[selectorPath.length-1]; - extendList = selector.extendList.slice(0).concat(allSelectorsExtendList).map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if (this.inInheritanceChain(targetExtend, extend)) { continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parents = [targetExtend, extend]; - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - inInheritanceChain: function (possibleParent, possibleChild) { - if (possibleParent === possibleChild) { - return true; - } - if (possibleChild.parents) { - if (this.inInheritanceChain(possibleParent, possibleChild.parents[0])) { - return true; - } - if (this.inInheritanceChain(possibleParent, possibleChild.parents[1])) { - return true; - } - } - return false; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (selectorPath[selectorPath.length-1].extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex == 0 && hackstackElementIndex == 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator == '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - return false; - }, - extendSelector:function (matches, selectorPath, replacementSelector) { - - //for a set of matches, replace each match with the replacement selector - - var currentSelectorPathIndex = 0, - currentSelectorPathElementIndex = 0, - path = [], - matchIndex, - selector, - firstElement; - - for (matchIndex = 0; matchIndex < matches.length; matchIndex++) { - match = matches[matchIndex]; - selector = selectorPath[match.pathIndex]; - firstElement = new tree.Element( - match.initialCombinator, - replacementSelector.elements[0].value, - replacementSelector.elements[0].index - ); - - if (match.pathIndex > currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)) - )); - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selector.elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree'));// -// browser.js - client-side engine -// - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - less.tree.functions[func] = less.functions[func]; - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -// -// Watch mode -// -less.watch = function () { - if (!less.watchMode ){ - less.env = 'development'; - initRunningMode(); - } - return this.watchMode = true -}; - -less.unwatch = function () {clearInterval(less.watchTimer); return this.watchMode = false; }; - -function initRunningMode(){ - if (less.env === 'development') { - less.optimization = 0; - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (e, root, _, sheet, env) { - if (e) { - error(e, sheet.href); - } else if (root) { - createCSS(root.toCSS(less), sheet, env.lastModified); - } - }); - } - }, less.poll); - } else { - less.optimization = 3; - } -} - -if (/!watch/.test(location.hash)) { - less.watch(); -} - -var cache = null; - -if (less.env != 'development') { - try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; - } catch (_) {} -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - -// -// With this function, it's possible to alter variables and re-render -// CSS without reloading less-files -// -var session_cache = ''; -less.modifyVars = function(record) { - var str = session_cache; - for (name in record) { - str += ((name.slice(0,1) === '@')? '' : '@') + name +': '+ - ((record[name].slice(-1) === ';')? record[name] : record[name] +';'); - } - new(less.Parser)(new less.tree.parseEnv(less)).parse(str, function (e, root) { - if (e) { - error(e, "session_cache"); - } else { - createCSS(root.toCSS(less), less.sheets[less.sheets.length - 1]); - } - }); -}; - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (e, root, _, sheet, env) { - if (e) { - return error(e, sheet.href); - } - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(less), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - var env = new less.tree.parseEnv(less); - env.filename = document.location.href.replace(/#.*$/, ''); - - new(less.Parser)(env).parse(styles[i].innerHTML || '', function (e, cssAST) { - if (e) { - return error(e, "inline"); - } - var css = cssAST.toCSS(less); - var style = styles[i]; - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function pathDiff(url, baseUrl) { - // diff between two paths to create a relative path - - var urlParts = extractUrlParts(url), - baseUrlParts = extractUrlParts(baseUrl), - i, max, urlDirectories, baseUrlDirectories, diff = ""; - if (urlParts.hostPart !== baseUrlParts.hostPart) { - return ""; - } - max = Math.max(baseUrlParts.directories.length, urlParts.directories.length); - for(i = 0; i < max; i++) { - if (baseUrlParts.directories[i] !== urlParts.directories[i]) { break; } - } - baseUrlDirectories = baseUrlParts.directories.slice(i); - urlDirectories = urlParts.directories.slice(i); - for(i = 0; i < baseUrlDirectories.length-1; i++) { - diff += "../"; - } - for(i = 0; i < urlDirectories.length-1; i++) { - diff += urlDirectories[i] + "/"; - } - return diff; -} - -function extractUrlParts(url, baseUrl) { - // urlParts[1] = protocol&hostname || / - // urlParts[2] = / if path relative to host base - // urlParts[3] = directories - // urlParts[4] = filename - // urlParts[5] = parameters - - var urlPartsRegex = /^((?:[a-z-]+:)?\/+?(?:[^\/\?#]*\/)|([\/\\]))?((?:[^\/\\\?#]*[\/\\])*)([^\/\\\?#]*)([#\?].*)?$/, - urlParts = url.match(urlPartsRegex), - returner = {}, directories = [], i, baseUrlParts; - - if (!urlParts) { - throw new Error("Could not parse sheet href - '"+url+"'"); - } - - // Stylesheets in IE don't always return the full path - if (!urlParts[1] || urlParts[2]) { - baseUrlParts = baseUrl.match(urlPartsRegex); - if (!baseUrlParts) { - throw new Error("Could not parse page url - '"+baseUrl+"'"); - } - urlParts[1] = urlParts[1] || baseUrlParts[1] || ""; - if (!urlParts[2]) { - urlParts[3] = baseUrlParts[3] + urlParts[3]; - } - } - - if (urlParts[3]) { - directories = urlParts[3].replace("\\", "/").split("/"); - - // extract out . before .. so .. doesn't absorb a non-directory - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".") { - directories.splice(i, 1); - i -= 1; - } - } - - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".." && i > 0) { - directories.splice(i-1, 2); - i -= 2; - } - } - } - - returner.hostPart = urlParts[1]; - returner.directories = directories; - returner.path = urlParts[1] + directories.join("/"); - returner.fileUrl = returner.path + (urlParts[4] || ""); - returner.url = returner.fileUrl + (urlParts[5] || ""); - return returner; -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - - // sheet may be set to the stylesheet for the initial load or a collection of properties including - // some env variables for imports - var hrefParts = extractUrlParts(sheet.href, window.location.href); - var href = hrefParts.url; - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - var env; - var newFileInfo = { - relativeUrls: less.relativeUrls, - currentDirectory: hrefParts.path, - filename: href - }; - - if (sheet instanceof less.tree.parseEnv) { - env = new less.tree.parseEnv(sheet); - newFileInfo.entryPath = env.currentFileInfo.entryPath; - newFileInfo.rootpath = env.currentFileInfo.rootpath; - newFileInfo.rootFilename = env.currentFileInfo.rootFilename; - } else { - env = new less.tree.parseEnv(less); - env.mime = sheet.type; - newFileInfo.entryPath = hrefParts.path; - newFileInfo.rootpath = less.rootpath || hrefParts.path; - newFileInfo.rootFilename = href; - } - - if (env.relativeUrls) { - //todo - this relies on option being set on less object rather than being passed in as an option - // - need an originalRootpath - if (less.rootpath) { - newFileInfo.rootpath = extractUrlParts(less.rootpath + pathDiff(hrefParts.path, newFileInfo.entryPath)).path; - } else { - newFileInfo.rootpath = hrefParts.path; - } - } - - xhr(href, sheet.type, function (data, lastModified) { - // Store data this session - session_cache += data.replace(/@import .+?;/ig, ''); - - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, null, data, sheet, { local: true, remaining: remaining }, href); - } else { - // Use remote copy (re-parse) - try { - env.contents[href] = data; // Updating content cache - env.paths = [hrefParts.path]; - env.currentFileInfo = newFileInfo; - - new(less.Parser)(env).parse(data, function (e, root) { - if (e) { return callback(e, null, null, sheet); } - try { - callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining }, href); - //TODO - there must be a better way? A generic less-to-css function that can both call error - //and removeNode where appropriate - //should also add tests - if (env.currentFileInfo.rootFilename === href) { - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } - } catch (e) { - callback(e, null, null, sheet); - } - }); - } catch (e) { - callback(e, null, null, sheet); - } - } - }, function (status, url) { - callback({ type: 'File', message: "'" + url + "' wasn't found (" + status + ")" }, null, null, sheet); - }); -} - -function extractId(href) { - return href.replace(/^[a-z-]+:\/+?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If this has already been inserted into the DOM, we may need to replace it - var oldCss = document.getElementById(id); - var keepOldCss = false; - - // Create a new stylesheet node for insertion or (if necessary) replacement - var css = document.createElement('style'); - css.setAttribute('type', 'text/css'); - if (sheet.media) { - css.setAttribute('media', sheet.media); - } - css.id = id; - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - css.appendChild(document.createTextNode(styles)); - - // If new contents match contents of oldCss, don't replace oldCss - keepOldCss = (oldCss !== null && oldCss.childNodes.length > 0 && css.childNodes.length > 0 && - oldCss.firstChild.nodeValue === css.firstChild.nodeValue); - } - - var head = document.getElementsByTagName('head')[0]; - - // If there is no oldCss, just append; otherwise, only append if we need - // to replace oldCss with an updated stylesheet - if (oldCss == null || keepOldCss === false) { - var nextEl = sheet && sheet.nextSibling || null; - (nextEl || document.getElementsByTagName('head')[0]).parentNode.insertBefore(css, nextEl); - } - if (oldCss && keepOldCss === false) { - head.removeChild(oldCss); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save'); - } - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? less.fileAsync : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - if (isFileProtocol && !less.fileAsync) { - if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new(XMLHttpRequest); - } else { - try { - return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX."); - return null; - } - } -} - -function removeNode(node) { - return node && node.parentNode.removeChild(node); -} - -function log(str) { - if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } -} - -function error(e, rootHref) { - var id = 'less-error-message:' + extractId(rootHref || ""); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, error = []; - var filename = e.filename || rootHref; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - '

    ' + '

    in ' + filenameNoPath + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] != undefined) { - error.push(template.replace(/\{line\}/, (parseInt(e.line) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - '
      ' + error.join('') + '
    '; - } else if (e.stack) { - content += '
    ' + e.stack.split('\n').slice(1).join('
    '); - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #dd6666;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.line {', - 'color: #ff0000;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); 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(input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input).line + 1); - this.callExtract = lines[getLocation(e.call, input).line]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length;) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - } - } - - switch (c) { - case '{': if (! inParam) { level ++; chunk.push(c); break } - case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } - case '(': if (! inParam) { inParam = true; chunk.push(c); break } - case ')': if ( inParam) { inParam = false; chunk.push(c); break } - default: chunk.push(c); - } - - i++; - } - if (level != 0) { - error = new(LessError)({ - index: i-1, - type: 'Parse', - message: (level > 0) ? "missing closing `}`" : "missing opening `{`", - filename: env.currentFileInfo.filename - }, env); - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - if (error) { - return callback(new(LessError)(error, env)); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - options = options || {}; - var importError, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var evaldRoot = evaluate.call(this, evalEnv); - - new(tree.joinSelectorVisitor)() - .run(evaldRoot); - - new(tree.processExtendsVisitor)() - .run(evaldRoot); - - var css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits)}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('ycssmin').cssmin(css, options.maxLineLen); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - callback(e); - } - else { - callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.extendRule) || $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/) || $(/^;+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null } - else { i += name.length } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted) || - $(this.entities.unicodeDescriptor); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var name, curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) return; - - if (value = $(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - if (ud = $(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/)) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList = []; - - if (!$(isRule ? /^&:extend\(/ : /^:extend\(/)) { return; } - - do { - option = null; - elements = []; - while (true) { - option = $(/^(all)(?=\s*(\)|,))/); - if (option) { break; } - e = $(this.element); - if (!e) { break; } - elements.push(e); - } - - option = option && option[1]; - - extendList.push(new(tree.Extend)(new(tree.Selector)(elements), option, index)); - - } while($(",")) - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, delim, arg, index = i, s = input.charAt(i), important = false; - - if (s !== '.' && s !== '#') { return } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - if ($('(')) { - args = this.mixin.args.call(this, true).args; - expect(')'); - } - - args = args || []; - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - - restore(); - }, - args: function (isCall) { - var expressions = [], argsSemiColon = [], isSemiColonSeperated, argsComma = [], expressionContainsNamed, name, nameLoop, value, arg, - returner = {args:null, variadic: false}; - while (true) { - if (isCall) { - arg = $(this.expression); - } else { - $(this.comment); - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value.length == 1) { - var val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(this.expression); - nameLoop = (name = val.name); - } else if (!isCall && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($(',')) { - continue; - } - - if ($(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new (tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - var argInfo = this.mixin.args.call(this, false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - $(this.comment); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) ||$(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^()@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(')) { - if ((v = ($(this.selector))) && - $(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, i) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|') { - i++; - while (input.charAt(i).match(/\s/)) { i++ } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, extend, extendList = []; - - while ((extend = $(this.extend)) || (e = $(this.element))) { - if (extend) { - extendList.push.apply(extendList, extend); - } else { - if (extendList.length) { - error("Extend can only be used at the end of selector"); - } - c = input.charAt(i); - elements.push(e) - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements, extendList); } - if (extendList.length) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (!(key = $(this.entities.variableCurly))) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - if ((op = $(/^[|~*$^]?=/))) { - val = $(this.entities.quoted) || $(/^[\w-]+/) || $(this.entities.variableCurly); - } - - expect(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) - ruleset.debugInfo = debugInfo; - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, c = input.charAt(i), important; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || (name.charAt(0) === '@')) ? - ($(this.value) || $(this.anonymousValue)) : - ($(this.anonymousValue) || $(this.value)); - - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } - }, - anonymousValue: function () { - var match; - if (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j])) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import?\s+/); - - var options = (dir ? $(this.importOptions) : null) || {}; - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $('(')) { return null; } - do { - if (o = $(this.importOption)) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $(',')) { break } - } - } while (o); - expect(')'); - return options; - }, - - importOption: function() { - var opt = $(/^(less|css|multiple|once)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.value); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features); - if(env.dumpLineNumbers) - media.debugInfo = debugInfo; - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, identifier, e, nodes, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - if (!name) return; - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - name += " " + ($(/^[^{]+/) || '').trim(); - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else { - if ((value = hasExpression ? $(this.expression) : $(this.entity)) && $(';')) { - var directive = new(tree.Directive)(name, value); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($('(')) { - if (a = $(this.addition)) { - e = new(tree.Expression)([a]); - expect(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced, expression = []; - if (m = $(this.operand)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while (!peek(/^\/[*\/]/) && (op = ($('/') || $('*')))) { - if (a = $(this.operand)) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } else { - break; - } - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - if (m = $(this.multiplication)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while ((op = $(/^[-+]\s+/) || (!isSpaced && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/) && (delim = $('/'))) { - entities.push(new(tree.Anonymous)(delim)); - } - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-z0-9-]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, currentFileInfo, callback, env) { - if (!/^([a-z-]+:)?\//.test(path) && currentFileInfo.currentDirectory) { - path = currentFileInfo.currentDirectory + path; - } - var sheetEnv = env.toSheet(path); - sheetEnv.processImports = false; - sheetEnv.currentFileInfo = currentFileInfo; - - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet(sheetEnv, - function (e, root, data, sheet, _, path) { - callback.call(null, e, root, path); - }, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 256); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if ((color.luma() * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return this._math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _math: function (fn, unit, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(fn(parseFloat(n.value)), unit == null ? n.unit : unit); - } else if (typeof(n) === 'number') { - return fn(n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - - /* Blending modes */ - - multiply: function(color1, color2) { - var r = color1.rgb[0] * color2.rgb[0] / 255; - var g = color1.rgb[1] * color2.rgb[1] / 255; - var b = color1.rgb[2] * color2.rgb[2] / 255; - return this.rgb(r, g, b); - }, - screen: function(color1, color2) { - var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - overlay: function(color1, color2) { - var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - softlight: function(color1, color2) { - var t = color2.rgb[0] * color1.rgb[0] / 255; - var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255; - t = color2.rgb[1] * color1.rgb[1] / 255; - var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255; - t = color2.rgb[2] * color1.rgb[2] / 255; - var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255; - return this.rgb(r, g, b); - }, - hardlight: function(color1, color2) { - var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255; - var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255; - var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - difference: function(color1, color2) { - var r = Math.abs(color1.rgb[0] - color2.rgb[0]); - var g = Math.abs(color1.rgb[1] - color2.rgb[1]); - var b = Math.abs(color1.rgb[2] - color2.rgb[2]); - return this.rgb(r, g, b); - }, - exclusion: function(color1, color2) { - var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255; - var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255; - var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - average: function(color1, color2) { - var r = (color1.rgb[0] + color2.rgb[0]) / 2; - var g = (color1.rgb[1] + color2.rgb[1]) / 2; - var b = (color1.rgb[2] + color2.rgb[2]) / 2; - return this.rgb(r, g, b); - }, - negation: function(color1, color2) { - var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]); - var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]); - var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]); - return this.rgb(r, g, b); - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - return values.value[index]; - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require("fs"), - path = require("path"), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) mimetype += ';base64'; - } - else { - useBase64 = /;base64$/.test(mimetype) - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } else if (!this.env.silent) { - // if explicitly disabled (via --no-ie-compat on CLI, or env.ieCompat === false), merely warn - console.warn("WARNING: Embedding %s (%dKB) exceeds IE8's data-uri size limit of %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "'data:" + mimetype + ',' + buf + "'"; - return new(tree.URL)(new(tree.Anonymous)(uri)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -var mathFunctions = [{name:"ceil"}, {name:"floor"}, {name: "sqrt"}, {name:"abs"}, - {name:"tan", unit: ""}, {name:"sin", unit: ""}, {name:"cos", unit: ""}, - {name:"atan", unit: "rad"}, {name:"asin", unit: "rad"}, {name:"acos", unit: "rad"}], - createMathFunction = function(name, unit) { - return function(n) { - if (unit != null) { - n = n.unify(); - } - return this._math(Math[name], unit, n); - }; - }; - -for(var i = 0; i < mathFunctions.length; i++) { - tree.functions[mathFunctions[i].name] = createMathFunction(mathFunctions[i].name, mathFunctions[i].unit); -} - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - // 'transparent':'rgba(0,0,0,0)', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - }, - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - toCSS: function () { - return this.value; - }, - eval: function () { return this }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - this.args = visitor.visit(this.args); - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS(env); }).join(', ') + ")"); - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - type: "Color", - eval: function () { return this }, - luma: function () { return (0.2126 * this.rgb[0] / 255) + (0.7152 * this.rgb[1] / 255) + (0.0722 * this.rgb[2] / 255); }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress; - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - - if (compress) { - color = color.split(''); - - // Convert color to short format - if (color[0] == color[1] && color[2] == color[3] && color[4] == color[5]) { - color = color[0] + color[2] + color[4]; - } else { - color = color.join(''); - } - } - - return '#' + color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - type: "Comment", - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function (env) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = this.value, - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && !this.unit.isAngle()) { - return strValue; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - return strValue + this.unit.toCSS(env); - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length == 0 && unit.denominator.length == 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a = this.unify(), b = other.unify(), - aValue = a.value, bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - if (!b.unit.isEmpty() && a.unit.compare(b.unit) !== 0) { - return -1; - } - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'm', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, conversion, targetUnit, derivedConversions = {}; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(function (atomicUnit, denominator) { - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - - toCSS: function (env) { - if (this.numerator.length >= 1) { - return this.numerator[0]; - } - if (this.denominator.length >= 1) { - return this.denominator[0]; - } - if ((!env || !env.strictUnits) && this.backupUnit) { - return this.backupUnit; - } - return ""; - }, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isAngle: function () { - return tree.UnitConversions.angle.hasOwnProperty(this.toCSS()); - }, - - isEmpty: function () { - return this.numerator.length == 0 && this.denominator.length == 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length == 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, groupName, result = {}; - - for (groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(function (atomicUnit) { - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - this.ruleset = visitor.visit(this.ruleset); - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - var evaldDirective = this; - if (this.ruleset) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name); - evaldDirective.ruleset = this.ruleset.eval(env); - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - this.combinator = visitor.visit(this.combinator); - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value == '' && this.combinator.value.charAt(0) == '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - toCSS: function (env) { - return { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ', - '|' : env.compress ? '|' : ' | ' - }[this.value]; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - }, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i; - - for(i = 0; i < selectors.length; i++) { - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - var that = this; - - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined) { - this.css = !this.options.less; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.path = visitor.visit(this.path); - this.root = visitor.visit(this.root); - }, - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - return "@import " + this.path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && !(path instanceof tree.URL)) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath + pathValue; - } - } - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { return []; } - - if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - toCSS: function () { return this.value; }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.Media = function (value, features) { - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.ruleset = new(tree.Ruleset)(selectors, value); - this.ruleset.allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.ruleset = visitor.visit(this.ruleset); - }, - toCSS: function (env) { - var features = this.features.toCSS(env); - - return '@media ' + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - }, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)([], []); - if(this.debugInfo) { - this.ruleset.debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.ruleset); - media.ruleset = this.ruleset.eval(env); - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env) - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', 0); - return [new(tree.Selector)([el])]; - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.ruleset = new(tree.Ruleset)(selectors.slice(0), [this.ruleset]); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - this.arguments = visitor.visit(this.arguments); - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - if (mixin.matchArgs(args, env)) { - if (!mixin.matchCondition || mixin.matchCondition(args, env)) { - try { - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - match = true; - } - } - if (match) { - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")`", - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - this.params = visitor.visit(this.params); - this.rules = visitor.visit(this.rules); - this.condition = visitor.visit(this.condition); - }, - toCSS: function () { return ""; }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - var frame = new(tree.Ruleset)(null, []), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.rules.unshift(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) continue; - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.rules.unshift(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - context, rules, start, ruleset; - - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.parent.makeImportant.apply(this).rules : this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules).eval(new(tree.evalEnv)(env, - [this, frame].concat(mixinFrames))); - ruleset.originalRuleset = this; - return ruleset; - }, - matchCondition: function (args, env) { - - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] - .concat(env.frames)))) { - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (! this.variadic) { - if (argsLength < this.required) { return false } - if (argsLength > this.params.length) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - return '-' + this.value.toCSS(env); - }, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { type: "Operation", - message: "Can't substract or divide a color from a number" }; - } - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - toCSS: function (env) { - var separator = this.isSpaced ? " " : ""; - return this.operands[0].toCSS() + separator + this.op + separator + this.operands[1].toCSS(); - } -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - return '(' + this.value.toCSS(env).trim() + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - if (this.variable) { return "" } - else { - try { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - } - }, - eval: function (env) { - var strictMathBypass = false; - if (this.name === "font" && env.strictMath === false) { - strictMathBypass = true; - env.strictMath = true; - } - try { - return new(tree.Rule)(this.name, - this.value.eval(env), - this.important, - this.index, this.currentFileInfo, this.inline); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.index, this.currentFileInfo, this.inline); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - this.selectors = visitor.visit(this.selectors); - this.rules = visitor.visit(this.rules); - }, - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // currrent selectors - if (!env.selectors) { - env.selectors = []; - } - env.selectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - rules = ruleset.rules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - ruleset.rules.splice.apply(ruleset.rules, [i, 1].concat(rules)); - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - env.selectors.shift(); - - if (env.mediaBlocks) { - for(var i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var i, rules; - for (i = 0; i < this.rules.length; i++) { - if (this.rules[i] instanceof tree.Import) { - rules = this.rules[i].eval(env); - if (typeof rules.length === "number") { - this.rules.splice.apply(this.rules, [i, 1].concat(rules)); - i+= rules.length-1; - } else { - this.rules.splice(i, 1, rules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - return this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - _rules = [], // - rulesets = [], // node.Ruleset instances - selector, // The fully rendered selector - debugInfo, // Line number debugging - rule; - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Media)) { - rulesets.push(rule.toCSS(env)); - } else if (rule instanceof tree.Directive) { - var cssValue = rule.toCSS(env); - // Output only the first @charset definition as such - convert the others - // to comments in case debug is enabled - if (rule.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (env.charset) { - if (rule.debugInfo) { - rulesets.push(tree.debugInfo(env, rule)); - rulesets.push(new tree.Comment("/* "+cssValue.replace(/\n/g, "")+" */\n").toCSS(env)); - } - continue; - } - env.charset = true; - } - rulesets.push(cssValue); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - if (this.firstRoot && rule instanceof tree.Rule) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: rule.index, filename: rule.currentFileInfo ? rule.currentFileInfo.filename : null}; - } - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - // Remove last semicolon - if (env.compress && rules.length) { - rule = rules[rules.length - 1]; - if (rule.charAt(rule.length - 1) === ';') { - rules[rules.length - 1] = rule.substring(0, rule.length - 1); - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - debugInfo = tree.debugInfo(env, this); - selector = this.paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : ',\n'); - - // Remove duplicates - for (var i = rules.length - 1; i >= 0; i--) { - if (rules[i].slice(0, 2) === "/*" || _rules.indexOf(rules[i]) === -1) { - _rules.unshift(rules[i]); - } - } - rules = _rules; - - css.push(debugInfo + selector + - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for(i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for(j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length == 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0)); //new Element(el.Combinator, "")); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for(k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = new(tree.Selector)(lastSelector.elements.slice(0), selector.extendList); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = new(tree.Selector)([], selector.extendList); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, 0)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for(i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel, extendList; - - if (selectors.length == 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for(i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = new(tree.Selector)(sel[sel.length - 1].elements.concat(elements), sel[sel.length - 1].extendList); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements, extendList) { - this.elements = elements; - this.extendList = extendList || []; -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - this.elements = visitor.visit(this.elements); - this.extendList = visitor.visit(this.extendList) - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, max, i; - - oelements = other.elements.slice( - (other.elements.length && other.elements[0].value === "&") ? 1 : 0); - olen = oelements.length; - max = Math.min(len, olen); - - if (olen === 0 || len < olen) { - return false; - } else { - for (i = 0; i < max; i++) { - if (elements[i].value !== oelements[i].value) { - return false; - } - } - } - return true; - }, - eval: function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - }), this.extendList.map(function(extend) { - return extend.eval(env); - })); - }, - toCSS: function (env) { - if (this._css) { return this._css } - - if (this.elements[0].combinator.value === "") { - this._css = ' '; - } else { - this._css = ''; - } - - this._css += this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); - - return this._css; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, currentFileInfo) { - this.value = val; - this.currentFileInfo = currentFileInfo; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function () { - return "url(" + this.value.toCSS() + ")"; - }, - eval: function (ctx) { - var val = this.value.eval(ctx), rootpath; - - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - return new(tree.URL)(val, null); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { this.name = name, this.index = index, this.currentFileInfo = currentFileInfo }; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { - this.evaluating = false; - return variable; - } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.debugInfo = function(env, ctx) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx)+tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:/\\])/g, function(a){if(a=='\\') a = '\/'; return '\\' + a}) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // browser-only, contents of all the files - 'relativeUrls', // option - whether to adjust URL's to be relative - 'strictImports', // option - - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'mime', // browser only - mime type for sheet import - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' = absolute path to the entry file - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - tree.parseEnv.prototype.toSheet = function (path) { - var env = new tree.parseEnv(this); - env.href = path; - //env.title = path; - env.type = this.mime; - return env; - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits' // whether units need to evaluate correctly - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - } -})(require('./tree'));(function (tree) { - - tree.visitor = function(implementation) { - this._implementation = implementation; - }; - - tree.visitor.prototype = { - visit: function(node) { - - if (node instanceof Array) { - return this.visitArray(node); - } - - if (!node || !node.type) { - return node; - } - - var funcName = "visit" + node.type, - func = this._implementation[funcName], - visitArgs, newNode; - if (func) { - visitArgs = {visitDeeper: true}; - newNode = func.call(this._implementation, node, visitArgs); - if (this._implementation.isReplacing) { - node = newNode; - } - } - if ((!visitArgs || visitArgs.visitDeeper) && node && node.accept) { - node.accept(this); - } - funcName = funcName + "Out"; - if (this._implementation[funcName]) { - this._implementation[funcName](node); - } - return node; - }, - visitArray: function(nodes) { - var i, newNodes = []; - for(i = 0; i < nodes.length; i++) { - var evald = this.visit(nodes[i]); - if (evald instanceof Array) { - newNodes = newNodes.concat(evald); - } else { - newNodes.push(evald); - } - } - if (this._implementation.isReplacing) { - return newNodes; - } - return nodes; - } - }; - -})(require('./tree'));(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode; - - if (!importNode.css) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && !evaldImportNode.css) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - this._importer.push(importNode.getPath(), importNode.currentFileInfo, function (e, root, imported) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - if (imported && !importNode.options.multiple) { importNode.skip = imported; } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - new(tree.importVisitor)(importVisitor._importer, subFinish, env) - .run(root); - } else { - subFinish(); - } - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree'));(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - var paths = []; - this.contexts.push(paths); - - if (! rulesetNode.root) { - rulesetNode.joinSelectors(paths, context, rulesetNode.selectors); - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.ruleset.root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree'));(function (tree) { - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - for(i = 0; i < rulesetNode.rules.length; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rulesetNode.rules[i]); - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - for(i = 0; i < rulesetNode.paths.length; i++) { - var selectorPath = rulesetNode.paths[i], - selector = selectorPath[selectorPath.length-1]; - extendList = selector.extendList.slice(0).concat(allSelectorsExtendList).map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if (this.inInheritanceChain(targetExtend, extend)) { continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parents = [targetExtend, extend]; - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - inInheritanceChain: function (possibleParent, possibleChild) { - if (possibleParent === possibleChild) { - return true; - } - if (possibleChild.parents) { - if (this.inInheritanceChain(possibleParent, possibleChild.parents[0])) { - return true; - } - if (this.inInheritanceChain(possibleParent, possibleChild.parents[1])) { - return true; - } - } - return false; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (selectorPath[selectorPath.length-1].extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex == 0 && hackstackElementIndex == 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator == '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - return false; - }, - extendSelector:function (matches, selectorPath, replacementSelector) { - - //for a set of matches, replace each match with the replacement selector - - var currentSelectorPathIndex = 0, - currentSelectorPathElementIndex = 0, - path = [], - matchIndex, - selector, - firstElement, - match; - - for (matchIndex = 0; matchIndex < matches.length; matchIndex++) { - match = matches[matchIndex]; - selector = selectorPath[match.pathIndex]; - firstElement = new tree.Element( - match.initialCombinator, - replacementSelector.elements[0].value, - replacementSelector.elements[0].index - ); - - if (match.pathIndex > currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)) - )); - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selector.elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree'));// -// browser.js - client-side engine -// - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - less.tree.functions[func] = less.functions[func]; - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -// -// Watch mode -// -less.watch = function () { - if (!less.watchMode ){ - less.env = 'development'; - initRunningMode(); - } - return this.watchMode = true -}; - -less.unwatch = function () {clearInterval(less.watchTimer); return this.watchMode = false; }; - -function initRunningMode(){ - if (less.env === 'development') { - less.optimization = 0; - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (e, root, _, sheet, env) { - if (e) { - error(e, sheet.href); - } else if (root) { - createCSS(root.toCSS(less), sheet, env.lastModified); - } - }); - } - }, less.poll); - } else { - less.optimization = 3; - } -} - -if (/!watch/.test(location.hash)) { - less.watch(); -} - -var cache = null; - -if (less.env != 'development') { - try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; - } catch (_) {} -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - -// -// With this function, it's possible to alter variables and re-render -// CSS without reloading less-files -// -var session_cache = ''; -less.modifyVars = function(record) { - var str = session_cache; - for (var name in record) { - str += ((name.slice(0,1) === '@')? '' : '@') + name +': '+ - ((record[name].slice(-1) === ';')? record[name] : record[name] +';'); - } - new(less.Parser)(new less.tree.parseEnv(less)).parse(str, function (e, root) { - if (e) { - error(e, "session_cache"); - } else { - createCSS(root.toCSS(less), less.sheets[less.sheets.length - 1]); - } - }); -}; - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (e, root, _, sheet, env) { - if (e) { - return error(e, sheet.href); - } - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(less), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - var env = new less.tree.parseEnv(less); - env.filename = document.location.href.replace(/#.*$/, ''); - - new(less.Parser)(env).parse(styles[i].innerHTML || '', function (e, cssAST) { - if (e) { - return error(e, "inline"); - } - var css = cssAST.toCSS(less); - var style = styles[i]; - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function pathDiff(url, baseUrl) { - // diff between two paths to create a relative path - - var urlParts = extractUrlParts(url), - baseUrlParts = extractUrlParts(baseUrl), - i, max, urlDirectories, baseUrlDirectories, diff = ""; - if (urlParts.hostPart !== baseUrlParts.hostPart) { - return ""; - } - max = Math.max(baseUrlParts.directories.length, urlParts.directories.length); - for(i = 0; i < max; i++) { - if (baseUrlParts.directories[i] !== urlParts.directories[i]) { break; } - } - baseUrlDirectories = baseUrlParts.directories.slice(i); - urlDirectories = urlParts.directories.slice(i); - for(i = 0; i < baseUrlDirectories.length-1; i++) { - diff += "../"; - } - for(i = 0; i < urlDirectories.length-1; i++) { - diff += urlDirectories[i] + "/"; - } - return diff; -} - -function extractUrlParts(url, baseUrl) { - // urlParts[1] = protocol&hostname || / - // urlParts[2] = / if path relative to host base - // urlParts[3] = directories - // urlParts[4] = filename - // urlParts[5] = parameters - - var urlPartsRegex = /^((?:[a-z-]+:)?\/+?(?:[^\/\?#]*\/)|([\/\\]))?((?:[^\/\\\?#]*[\/\\])*)([^\/\\\?#]*)([#\?].*)?$/, - urlParts = url.match(urlPartsRegex), - returner = {}, directories = [], i, baseUrlParts; - - if (!urlParts) { - throw new Error("Could not parse sheet href - '"+url+"'"); - } - - // Stylesheets in IE don't always return the full path - if (!urlParts[1] || urlParts[2]) { - baseUrlParts = baseUrl.match(urlPartsRegex); - if (!baseUrlParts) { - throw new Error("Could not parse page url - '"+baseUrl+"'"); - } - urlParts[1] = urlParts[1] || baseUrlParts[1] || ""; - if (!urlParts[2]) { - urlParts[3] = baseUrlParts[3] + urlParts[3]; - } - } - - if (urlParts[3]) { - directories = urlParts[3].replace("\\", "/").split("/"); - - // extract out . before .. so .. doesn't absorb a non-directory - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".") { - directories.splice(i, 1); - i -= 1; - } - } - - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".." && i > 0) { - directories.splice(i-1, 2); - i -= 2; - } - } - } - - returner.hostPart = urlParts[1]; - returner.directories = directories; - returner.path = urlParts[1] + directories.join("/"); - returner.fileUrl = returner.path + (urlParts[4] || ""); - returner.url = returner.fileUrl + (urlParts[5] || ""); - return returner; -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - - // sheet may be set to the stylesheet for the initial load or a collection of properties including - // some env variables for imports - var hrefParts = extractUrlParts(sheet.href, window.location.href); - var href = hrefParts.url; - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - var env; - var newFileInfo = { - relativeUrls: less.relativeUrls, - currentDirectory: hrefParts.path, - filename: href - }; - - if (sheet instanceof less.tree.parseEnv) { - env = new less.tree.parseEnv(sheet); - newFileInfo.entryPath = env.currentFileInfo.entryPath; - newFileInfo.rootpath = env.currentFileInfo.rootpath; - newFileInfo.rootFilename = env.currentFileInfo.rootFilename; - } else { - env = new less.tree.parseEnv(less); - env.mime = sheet.type; - newFileInfo.entryPath = hrefParts.path; - newFileInfo.rootpath = less.rootpath || hrefParts.path; - newFileInfo.rootFilename = href; - } - - if (env.relativeUrls) { - //todo - this relies on option being set on less object rather than being passed in as an option - // - need an originalRootpath - if (less.rootpath) { - newFileInfo.rootpath = extractUrlParts(less.rootpath + pathDiff(hrefParts.path, newFileInfo.entryPath)).path; - } else { - newFileInfo.rootpath = hrefParts.path; - } - } - - xhr(href, sheet.type, function (data, lastModified) { - // Store data this session - session_cache += data.replace(/@import .+?;/ig, ''); - - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, null, data, sheet, { local: true, remaining: remaining }, href); - } else { - // Use remote copy (re-parse) - try { - env.contents[href] = data; // Updating content cache - env.paths = [hrefParts.path]; - env.currentFileInfo = newFileInfo; - - new(less.Parser)(env).parse(data, function (e, root) { - if (e) { return callback(e, null, null, sheet); } - try { - callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining }, href); - //TODO - there must be a better way? A generic less-to-css function that can both call error - //and removeNode where appropriate - //should also add tests - if (env.currentFileInfo.rootFilename === href) { - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } - } catch (e) { - callback(e, null, null, sheet); - } - }); - } catch (e) { - callback(e, null, null, sheet); - } - } - }, function (status, url) { - callback({ type: 'File', message: "'" + url + "' wasn't found (" + status + ")" }, null, null, sheet); - }); -} - -function extractId(href) { - return href.replace(/^[a-z-]+:\/+?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If this has already been inserted into the DOM, we may need to replace it - var oldCss = document.getElementById(id); - var keepOldCss = false; - - // Create a new stylesheet node for insertion or (if necessary) replacement - var css = document.createElement('style'); - css.setAttribute('type', 'text/css'); - if (sheet.media) { - css.setAttribute('media', sheet.media); - } - css.id = id; - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - css.appendChild(document.createTextNode(styles)); - - // If new contents match contents of oldCss, don't replace oldCss - keepOldCss = (oldCss !== null && oldCss.childNodes.length > 0 && css.childNodes.length > 0 && - oldCss.firstChild.nodeValue === css.firstChild.nodeValue); - } - - var head = document.getElementsByTagName('head')[0]; - - // If there is no oldCss, just append; otherwise, only append if we need - // to replace oldCss with an updated stylesheet - if (oldCss == null || keepOldCss === false) { - var nextEl = sheet && sheet.nextSibling || null; - (nextEl || document.getElementsByTagName('head')[0]).parentNode.insertBefore(css, nextEl); - } - if (oldCss && keepOldCss === false) { - head.removeChild(oldCss); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save'); - } - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? less.fileAsync : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - if (isFileProtocol && !less.fileAsync) { - if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new(XMLHttpRequest); - } else { - try { - return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX."); - return null; - } - } -} - -function removeNode(node) { - return node && node.parentNode.removeChild(node); -} - -function log(str) { - if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } -} - -function error(e, rootHref) { - var id = 'less-error-message:' + extractId(rootHref || ""); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, error = []; - var filename = e.filename || rootHref; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - '

    ' + '

    in ' + filenameNoPath + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] != undefined) { - error.push(template.replace(/\{line\}/, (parseInt(e.line) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - '
      ' + error.join('') + '
    '; - } else if (e.stack) { - content += '
    ' + e.stack.split('\n').slice(1).join('
    '); - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #dd6666;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.line {', - 'color: #ff0000;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); 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(input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input).line + 1); - this.callExtract = lines[getLocation(e.call, input).line]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length;) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - } - } - - switch (c) { - case '{': if (! inParam) { level ++; chunk.push(c); break } - case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } - case '(': if (! inParam) { inParam = true; chunk.push(c); break } - case ')': if ( inParam) { inParam = false; chunk.push(c); break } - default: chunk.push(c); - } - - i++; - } - if (level != 0) { - error = new(LessError)({ - index: i-1, - type: 'Parse', - message: (level > 0) ? "missing closing `}`" : "missing opening `{`", - filename: env.currentFileInfo.filename - }, env); - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - if (error) { - return callback(new(LessError)(error, env)); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - options = options || {}; - var importError, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var evaldRoot = evaluate.call(this, evalEnv); - - new(tree.joinSelectorVisitor)() - .run(evaldRoot); - - new(tree.processExtendsVisitor)() - .run(evaldRoot); - - var css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits)}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('ycssmin').cssmin(css, options.maxLineLen); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - callback(e); - } - else { - callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.extendRule) || $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/) || $(/^;+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null } - else { i += name.length } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted) || - $(this.entities.unicodeDescriptor); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var name, curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) return; - - if (value = $(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - if (ud = $(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/)) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList = []; - - if (!$(isRule ? /^&:extend\(/ : /^:extend\(/)) { return; } - - do { - option = null; - elements = []; - while (true) { - option = $(/^(all)(?=\s*(\)|,))/); - if (option) { break; } - e = $(this.element); - if (!e) { break; } - elements.push(e); - } - - option = option && option[1]; - - extendList.push(new(tree.Extend)(new(tree.Selector)(elements), option, index)); - - } while($(",")) - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, delim, arg, index = i, s = input.charAt(i), important = false; - - if (s !== '.' && s !== '#') { return } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - if ($('(')) { - args = this.mixin.args.call(this, true).args; - expect(')'); - } - - args = args || []; - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - - restore(); - }, - args: function (isCall) { - var expressions = [], argsSemiColon = [], isSemiColonSeperated, argsComma = [], expressionContainsNamed, name, nameLoop, value, arg, - returner = {args:null, variadic: false}; - while (true) { - if (isCall) { - arg = $(this.expression); - } else { - $(this.comment); - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value.length == 1) { - var val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(this.expression); - nameLoop = (name = val.name); - } else if (!isCall && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($(',')) { - continue; - } - - if ($(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new (tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - var argInfo = this.mixin.args.call(this, false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - $(this.comment); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) ||$(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^()@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(')) { - if ((v = ($(this.selector))) && - $(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, i) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|') { - i++; - while (input.charAt(i).match(/\s/)) { i++ } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, extend, extendList = []; - - while ((extend = $(this.extend)) || (e = $(this.element))) { - if (extend) { - extendList.push.apply(extendList, extend); - } else { - if (extendList.length) { - error("Extend can only be used at the end of selector"); - } - c = input.charAt(i); - elements.push(e) - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements, extendList); } - if (extendList.length) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (!(key = $(this.entities.variableCurly))) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - if ((op = $(/^[|~*$^]?=/))) { - val = $(this.entities.quoted) || $(/^[\w-]+/) || $(this.entities.variableCurly); - } - - expect(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) - ruleset.debugInfo = debugInfo; - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, c = input.charAt(i), important; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || (name.charAt(0) === '@')) ? - ($(this.value) || $(this.anonymousValue)) : - ($(this.anonymousValue) || $(this.value)); - - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } - }, - anonymousValue: function () { - var match; - if (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j])) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import?\s+/); - - var options = (dir ? $(this.importOptions) : null) || {}; - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $('(')) { return null; } - do { - if (o = $(this.importOption)) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $(',')) { break } - } - } while (o); - expect(')'); - return options; - }, - - importOption: function() { - var opt = $(/^(less|css|multiple|once)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.value); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features); - if(env.dumpLineNumbers) - media.debugInfo = debugInfo; - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, identifier, e, nodes, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - if (!name) return; - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - name += " " + ($(/^[^{]+/) || '').trim(); - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else { - if ((value = hasExpression ? $(this.expression) : $(this.entity)) && $(';')) { - var directive = new(tree.Directive)(name, value); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($('(')) { - if (a = $(this.addition)) { - e = new(tree.Expression)([a]); - expect(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced, expression = []; - if (m = $(this.operand)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while (!peek(/^\/[*\/]/) && (op = ($('/') || $('*')))) { - if (a = $(this.operand)) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } else { - break; - } - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - if (m = $(this.multiplication)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while ((op = $(/^[-+]\s+/) || (!isSpaced && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/) && (delim = $('/'))) { - entities.push(new(tree.Anonymous)(delim)); - } - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, currentFileInfo, callback, env) { - if (!/^([a-z-]+:)?\//.test(path) && currentFileInfo.currentDirectory) { - path = currentFileInfo.currentDirectory + path; - } - var sheetEnv = env.toSheet(path); - sheetEnv.processImports = false; - sheetEnv.currentFileInfo = currentFileInfo; - - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet(sheetEnv, - function (e, root, data, sheet, _, path) { - callback.call(null, e, root, path); - }, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 256); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if ((color.luma() * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return this._math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _math: function (fn, unit, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(fn(parseFloat(n.value)), unit == null ? n.unit : unit); - } else if (typeof(n) === 'number') { - return fn(n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - - /* Blending modes */ - - multiply: function(color1, color2) { - var r = color1.rgb[0] * color2.rgb[0] / 255; - var g = color1.rgb[1] * color2.rgb[1] / 255; - var b = color1.rgb[2] * color2.rgb[2] / 255; - return this.rgb(r, g, b); - }, - screen: function(color1, color2) { - var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - overlay: function(color1, color2) { - var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - softlight: function(color1, color2) { - var t = color2.rgb[0] * color1.rgb[0] / 255; - var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255; - t = color2.rgb[1] * color1.rgb[1] / 255; - var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255; - t = color2.rgb[2] * color1.rgb[2] / 255; - var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255; - return this.rgb(r, g, b); - }, - hardlight: function(color1, color2) { - var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255; - var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255; - var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - difference: function(color1, color2) { - var r = Math.abs(color1.rgb[0] - color2.rgb[0]); - var g = Math.abs(color1.rgb[1] - color2.rgb[1]); - var b = Math.abs(color1.rgb[2] - color2.rgb[2]); - return this.rgb(r, g, b); - }, - exclusion: function(color1, color2) { - var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255; - var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255; - var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - average: function(color1, color2) { - var r = (color1.rgb[0] + color2.rgb[0]) / 2; - var g = (color1.rgb[1] + color2.rgb[1]) / 2; - var b = (color1.rgb[2] + color2.rgb[2]) / 2; - return this.rgb(r, g, b); - }, - negation: function(color1, color2) { - var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]); - var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]); - var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]); - return this.rgb(r, g, b); - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - return values.value[index]; - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require("fs"), - path = require("path"), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) mimetype += ';base64'; - } - else { - useBase64 = /;base64$/.test(mimetype) - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } else if (!this.env.silent) { - // if explicitly disabled (via --no-ie-compat on CLI, or env.ieCompat === false), merely warn - console.warn("WARNING: Embedding %s (%dKB) exceeds IE8's data-uri size limit of %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "'data:" + mimetype + ',' + buf + "'"; - return new(tree.URL)(new(tree.Anonymous)(uri)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -var mathFunctions = [{name:"ceil"}, {name:"floor"}, {name: "sqrt"}, {name:"abs"}, - {name:"tan", unit: ""}, {name:"sin", unit: ""}, {name:"cos", unit: ""}, - {name:"atan", unit: "rad"}, {name:"asin", unit: "rad"}, {name:"acos", unit: "rad"}], - createMathFunction = function(name, unit) { - return function(n) { - if (unit != null) { - n = n.unify(); - } - return this._math(Math[name], unit, n); - }; - }; - -for(var i = 0; i < mathFunctions.length; i++) { - tree.functions[mathFunctions[i].name] = createMathFunction(mathFunctions[i].name, mathFunctions[i].unit); -} - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - // 'transparent':'rgba(0,0,0,0)', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - }, - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - toCSS: function () { - return this.value; - }, - eval: function () { return this }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - this.args = visitor.visit(this.args); - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS(env); }).join(', ') + ")"); - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - type: "Color", - eval: function () { return this }, - luma: function () { return (0.2126 * this.rgb[0] / 255) + (0.7152 * this.rgb[1] / 255) + (0.0722 * this.rgb[2] / 255); }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress; - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - - if (compress) { - color = color.split(''); - - // Convert color to short format - if (color[0] == color[1] && color[2] == color[3] && color[4] == color[5]) { - color = color[0] + color[2] + color[4]; - } else { - color = color.join(''); - } - } - - return '#' + color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - type: "Comment", - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function (env) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = this.value, - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && !this.unit.isAngle()) { - return strValue; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - return strValue + this.unit.toCSS(env); - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length == 0 && unit.denominator.length == 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a = this.unify(), b = other.unify(), - aValue = a.value, bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - if (!b.unit.isEmpty() && a.unit.compare(b.unit) !== 0) { - return -1; - } - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'm', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, conversion, targetUnit, derivedConversions = {}; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(function (atomicUnit, denominator) { - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - - toCSS: function (env) { - if (this.numerator.length >= 1) { - return this.numerator[0]; - } - if (this.denominator.length >= 1) { - return this.denominator[0]; - } - if ((!env || !env.strictUnits) && this.backupUnit) { - return this.backupUnit; - } - return ""; - }, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isAngle: function () { - return tree.UnitConversions.angle.hasOwnProperty(this.toCSS()); - }, - - isEmpty: function () { - return this.numerator.length == 0 && this.denominator.length == 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length == 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, groupName, result = {}; - - for (groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(function (atomicUnit) { - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - this.ruleset = visitor.visit(this.ruleset); - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - var evaldDirective = this; - if (this.ruleset) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name); - evaldDirective.ruleset = this.ruleset.eval(env); - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - this.combinator = visitor.visit(this.combinator); - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value == '' && this.combinator.value.charAt(0) == '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - toCSS: function (env) { - return { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ', - '|' : env.compress ? '|' : ' | ' - }[this.value]; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - }, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i; - - for(i = 0; i < selectors.length; i++) { - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - var that = this; - - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined) { - this.css = !this.options.less; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.path = visitor.visit(this.path); - this.root = visitor.visit(this.root); - }, - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - return "@import " + this.path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && !(path instanceof tree.URL)) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath + pathValue; - } - } - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { return []; } - - if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - toCSS: function () { return this.value; }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.Media = function (value, features) { - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.ruleset = new(tree.Ruleset)(selectors, value); - this.ruleset.allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.ruleset = visitor.visit(this.ruleset); - }, - toCSS: function (env) { - var features = this.features.toCSS(env); - - return '@media ' + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - }, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)([], []); - if(this.debugInfo) { - this.ruleset.debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.ruleset); - media.ruleset = this.ruleset.eval(env); - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env) - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', 0); - return [new(tree.Selector)([el])]; - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.ruleset = new(tree.Ruleset)(selectors.slice(0), [this.ruleset]); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - this.arguments = visitor.visit(this.arguments); - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - if (mixin.matchArgs(args, env)) { - if (!mixin.matchCondition || mixin.matchCondition(args, env)) { - try { - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - match = true; - } - } - if (match) { - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")`", - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - this.params = visitor.visit(this.params); - this.rules = visitor.visit(this.rules); - this.condition = visitor.visit(this.condition); - }, - toCSS: function () { return ""; }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - var frame = new(tree.Ruleset)(null, []), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.rules.unshift(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) continue; - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.rules.unshift(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - context, rules, start, ruleset; - - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.parent.makeImportant.apply(this).rules : this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules).eval(new(tree.evalEnv)(env, - [this, frame].concat(mixinFrames))); - ruleset.originalRuleset = this; - return ruleset; - }, - matchCondition: function (args, env) { - - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] - .concat(env.frames)))) { - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (! this.variadic) { - if (argsLength < this.required) { return false } - if (argsLength > this.params.length) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - return '-' + this.value.toCSS(env); - }, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { type: "Operation", - message: "Can't substract or divide a color from a number" }; - } - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - toCSS: function (env) { - var separator = this.isSpaced ? " " : ""; - return this.operands[0].toCSS() + separator + this.op + separator + this.operands[1].toCSS(); - } -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - return '(' + this.value.toCSS(env).trim() + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function (env) { - if (this.variable) { return "" } - else { - try { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - } - }, - eval: function (env) { - var strictMathBypass = false; - if (this.name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - return new(tree.Rule)(this.name, - this.value.eval(env), - this.important, - this.index, this.currentFileInfo, this.inline); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.index, this.currentFileInfo, this.inline); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - this.selectors = visitor.visit(this.selectors); - this.rules = visitor.visit(this.rules); - }, - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // currrent selectors - if (!env.selectors) { - env.selectors = []; - } - env.selectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - rules = ruleset.rules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - ruleset.rules.splice.apply(ruleset.rules, [i, 1].concat(rules)); - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - env.selectors.shift(); - - if (env.mediaBlocks) { - for(var i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var i, rules; - for (i = 0; i < this.rules.length; i++) { - if (this.rules[i] instanceof tree.Import) { - rules = this.rules[i].eval(env); - if (typeof rules.length === "number") { - this.rules.splice.apply(this.rules, [i, 1].concat(rules)); - i+= rules.length-1; - } else { - this.rules.splice(i, 1, rules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - return this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - _rules = [], // - rulesets = [], // node.Ruleset instances - selector, // The fully rendered selector - debugInfo, // Line number debugging - rule; - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Media)) { - rulesets.push(rule.toCSS(env)); - } else if (rule instanceof tree.Directive) { - var cssValue = rule.toCSS(env); - // Output only the first @charset definition as such - convert the others - // to comments in case debug is enabled - if (rule.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (env.charset) { - if (rule.debugInfo) { - rulesets.push(tree.debugInfo(env, rule)); - rulesets.push(new tree.Comment("/* "+cssValue.replace(/\n/g, "")+" */\n").toCSS(env)); - } - continue; - } - env.charset = true; - } - rulesets.push(cssValue); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - if (this.firstRoot && rule instanceof tree.Rule) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: rule.index, filename: rule.currentFileInfo ? rule.currentFileInfo.filename : null}; - } - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - // Remove last semicolon - if (env.compress && rules.length) { - rule = rules[rules.length - 1]; - if (rule.charAt(rule.length - 1) === ';') { - rules[rules.length - 1] = rule.substring(0, rule.length - 1); - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - debugInfo = tree.debugInfo(env, this); - selector = this.paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : ',\n'); - - // Remove duplicates - for (var i = rules.length - 1; i >= 0; i--) { - if (rules[i].slice(0, 2) === "/*" || _rules.indexOf(rules[i]) === -1) { - _rules.unshift(rules[i]); - } - } - rules = _rules; - - css.push(debugInfo + selector + - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for(i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for(j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length == 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0)); //new Element(el.Combinator, "")); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for(k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = new(tree.Selector)(lastSelector.elements.slice(0), selector.extendList); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = new(tree.Selector)([], selector.extendList); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, 0)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for(i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel, extendList; - - if (selectors.length == 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for(i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = new(tree.Selector)(sel[sel.length - 1].elements.concat(elements), sel[sel.length - 1].extendList); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements, extendList) { - this.elements = elements; - this.extendList = extendList || []; -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - this.elements = visitor.visit(this.elements); - this.extendList = visitor.visit(this.extendList) - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, max, i; - - oelements = other.elements.slice( - (other.elements.length && other.elements[0].value === "&") ? 1 : 0); - olen = oelements.length; - max = Math.min(len, olen); - - if (olen === 0 || len < olen) { - return false; - } else { - for (i = 0; i < max; i++) { - if (elements[i].value !== oelements[i].value) { - return false; - } - } - } - return true; - }, - eval: function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - }), this.extendList.map(function(extend) { - return extend.eval(env); - })); - }, - toCSS: function (env) { - if (this._css) { return this._css } - - if (this.elements[0].combinator.value === "") { - this._css = ' '; - } else { - this._css = ''; - } - - this._css += this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); - - return this._css; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, currentFileInfo) { - this.value = val; - this.currentFileInfo = currentFileInfo; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - toCSS: function () { - return "url(" + this.value.toCSS() + ")"; - }, - eval: function (ctx) { - var val = this.value.eval(ctx), rootpath; - - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - return new(tree.URL)(val, null); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { this.name = name, this.index = index, this.currentFileInfo = currentFileInfo }; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { - this.evaluating = false; - return variable; - } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.debugInfo = function(env, ctx) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx)+tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:/\\])/g, function(a){if(a=='\\') a = '\/'; return '\\' + a}) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // browser-only, contents of all the files - 'relativeUrls', // option - whether to adjust URL's to be relative - 'strictImports', // option - - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'mime', // browser only - mime type for sheet import - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' = absolute path to the entry file - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - tree.parseEnv.prototype.toSheet = function (path) { - var env = new tree.parseEnv(this); - env.href = path; - //env.title = path; - env.type = this.mime; - return env; - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits' // whether units need to evaluate correctly - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - } -})(require('./tree'));(function (tree) { - - tree.visitor = function(implementation) { - this._implementation = implementation; - }; - - tree.visitor.prototype = { - visit: function(node) { - - if (node instanceof Array) { - return this.visitArray(node); - } - - if (!node || !node.type) { - return node; - } - - var funcName = "visit" + node.type, - func = this._implementation[funcName], - visitArgs, newNode; - if (func) { - visitArgs = {visitDeeper: true}; - newNode = func.call(this._implementation, node, visitArgs); - if (this._implementation.isReplacing) { - node = newNode; - } - } - if ((!visitArgs || visitArgs.visitDeeper) && node && node.accept) { - node.accept(this); - } - funcName = funcName + "Out"; - if (this._implementation[funcName]) { - this._implementation[funcName](node); - } - return node; - }, - visitArray: function(nodes) { - var i, newNodes = []; - for(i = 0; i < nodes.length; i++) { - var evald = this.visit(nodes[i]); - if (evald instanceof Array) { - newNodes = newNodes.concat(evald); - } else { - newNodes.push(evald); - } - } - if (this._implementation.isReplacing) { - return newNodes; - } - return nodes; - } - }; - -})(require('./tree'));(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode; - - if (!importNode.css) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && !evaldImportNode.css) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - this._importer.push(importNode.getPath(), importNode.currentFileInfo, function (e, root, imported) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - if (imported && !importNode.options.multiple) { importNode.skip = imported; } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - new(tree.importVisitor)(importVisitor._importer, subFinish, env) - .run(root); - } else { - subFinish(); - } - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree'));(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - var paths = []; - this.contexts.push(paths); - - if (! rulesetNode.root) { - rulesetNode.joinSelectors(paths, context, rulesetNode.selectors); - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.ruleset.root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree'));(function (tree) { - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - for(i = 0; i < rulesetNode.rules.length; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rulesetNode.rules[i]); - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - for(i = 0; i < rulesetNode.paths.length; i++) { - var selectorPath = rulesetNode.paths[i], - selector = selectorPath[selectorPath.length-1]; - extendList = selector.extendList.slice(0).concat(allSelectorsExtendList).map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if (this.inInheritanceChain(targetExtend, extend)) { continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parents = [targetExtend, extend]; - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - inInheritanceChain: function (possibleParent, possibleChild) { - if (possibleParent === possibleChild) { - return true; - } - if (possibleChild.parents) { - if (this.inInheritanceChain(possibleParent, possibleChild.parents[0])) { - return true; - } - if (this.inInheritanceChain(possibleParent, possibleChild.parents[1])) { - return true; - } - } - return false; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (selectorPath[selectorPath.length-1].extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex == 0 && hackstackElementIndex == 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator == '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - return false; - }, - extendSelector:function (matches, selectorPath, replacementSelector) { - - //for a set of matches, replace each match with the replacement selector - - var currentSelectorPathIndex = 0, - currentSelectorPathElementIndex = 0, - path = [], - matchIndex, - selector, - firstElement, - match; - - for (matchIndex = 0; matchIndex < matches.length; matchIndex++) { - match = matches[matchIndex]; - selector = selectorPath[match.pathIndex]; - firstElement = new tree.Element( - match.initialCombinator, - replacementSelector.elements[0].value, - replacementSelector.elements[0].index - ); - - if (match.pathIndex > currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)) - )); - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selector.elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree'));// -// browser.js - client-side engine -// - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - less.tree.functions[func] = less.functions[func]; - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -// -// Watch mode -// -less.watch = function () { - if (!less.watchMode ){ - less.env = 'development'; - initRunningMode(); - } - return this.watchMode = true -}; - -less.unwatch = function () {clearInterval(less.watchTimer); return this.watchMode = false; }; - -function initRunningMode(){ - if (less.env === 'development') { - less.optimization = 0; - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (e, root, _, sheet, env) { - if (e) { - error(e, sheet.href); - } else if (root) { - createCSS(root.toCSS(less), sheet, env.lastModified); - } - }); - } - }, less.poll); - } else { - less.optimization = 3; - } -} - -if (/!watch/.test(location.hash)) { - less.watch(); -} - -var cache = null; - -if (less.env != 'development') { - try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; - } catch (_) {} -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); -var typePattern = /^text\/(x-)?less$/; - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - -// -// With this function, it's possible to alter variables and re-render -// CSS without reloading less-files -// -var session_cache = ''; -less.modifyVars = function(record) { - var str = session_cache; - for (var name in record) { - str += ((name.slice(0,1) === '@')? '' : '@') + name +': '+ - ((record[name].slice(-1) === ';')? record[name] : record[name] +';'); - } - new(less.Parser)(new less.tree.parseEnv(less)).parse(str, function (e, root) { - if (e) { - error(e, "session_cache"); - } else { - createCSS(root.toCSS(less), less.sheets[less.sheets.length - 1]); - } - }); -}; - -less.refresh = function (reload) { - var startTime, endTime; - startTime = endTime = new(Date); - - loadStyleSheets(function (e, root, _, sheet, env) { - if (e) { - return error(e, sheet.href); - } - if (env.local) { - log("loading " + sheet.href + " from cache."); - } else { - log("parsed " + sheet.href + " successfully."); - createCSS(root.toCSS(less), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); - (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); - endTime = new(Date); - }, reload); - - loadStyles(); -}; -less.refreshStyles = loadStyles; - -less.refresh(less.env === 'development'); - -function loadStyles() { - var styles = document.getElementsByTagName('style'); - for (var i = 0; i < styles.length; i++) { - if (styles[i].type.match(typePattern)) { - var env = new less.tree.parseEnv(less); - env.filename = document.location.href.replace(/#.*$/, ''); - - new(less.Parser)(env).parse(styles[i].innerHTML || '', function (e, cssAST) { - if (e) { - return error(e, "inline"); - } - var css = cssAST.toCSS(less); - var style = styles[i]; - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }); - } - } -} - -function loadStyleSheets(callback, reload) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); - } -} - -function pathDiff(url, baseUrl) { - // diff between two paths to create a relative path - - var urlParts = extractUrlParts(url), - baseUrlParts = extractUrlParts(baseUrl), - i, max, urlDirectories, baseUrlDirectories, diff = ""; - if (urlParts.hostPart !== baseUrlParts.hostPart) { - return ""; - } - max = Math.max(baseUrlParts.directories.length, urlParts.directories.length); - for(i = 0; i < max; i++) { - if (baseUrlParts.directories[i] !== urlParts.directories[i]) { break; } - } - baseUrlDirectories = baseUrlParts.directories.slice(i); - urlDirectories = urlParts.directories.slice(i); - for(i = 0; i < baseUrlDirectories.length-1; i++) { - diff += "../"; - } - for(i = 0; i < urlDirectories.length-1; i++) { - diff += urlDirectories[i] + "/"; - } - return diff; -} - -function extractUrlParts(url, baseUrl) { - // urlParts[1] = protocol&hostname || / - // urlParts[2] = / if path relative to host base - // urlParts[3] = directories - // urlParts[4] = filename - // urlParts[5] = parameters - - var urlPartsRegex = /^((?:[a-z-]+:)?\/+?(?:[^\/\?#]*\/)|([\/\\]))?((?:[^\/\\\?#]*[\/\\])*)([^\/\\\?#]*)([#\?].*)?$/i, - urlParts = url.match(urlPartsRegex), - returner = {}, directories = [], i, baseUrlParts; - - if (!urlParts) { - throw new Error("Could not parse sheet href - '"+url+"'"); - } - - // Stylesheets in IE don't always return the full path - if (!urlParts[1] || urlParts[2]) { - baseUrlParts = baseUrl.match(urlPartsRegex); - if (!baseUrlParts) { - throw new Error("Could not parse page url - '"+baseUrl+"'"); - } - urlParts[1] = urlParts[1] || baseUrlParts[1] || ""; - if (!urlParts[2]) { - urlParts[3] = baseUrlParts[3] + urlParts[3]; - } - } - - if (urlParts[3]) { - directories = urlParts[3].replace(/\\/g, "/").split("/"); - - // extract out . before .. so .. doesn't absorb a non-directory - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".") { - directories.splice(i, 1); - i -= 1; - } - } - - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".." && i > 0) { - directories.splice(i-1, 2); - i -= 2; - } - } - } - - returner.hostPart = urlParts[1]; - returner.directories = directories; - returner.path = urlParts[1] + directories.join("/"); - returner.fileUrl = returner.path + (urlParts[4] || ""); - returner.url = returner.fileUrl + (urlParts[5] || ""); - return returner; -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - - // sheet may be set to the stylesheet for the initial load or a collection of properties including - // some env variables for imports - var hrefParts = extractUrlParts(sheet.href, window.location.href); - var href = hrefParts.url; - var css = cache && cache.getItem(href); - var timestamp = cache && cache.getItem(href + ':timestamp'); - var styles = { css: css, timestamp: timestamp }; - var env; - var newFileInfo = { - relativeUrls: less.relativeUrls, - currentDirectory: hrefParts.path, - filename: href - }; - - if (sheet instanceof less.tree.parseEnv) { - env = new less.tree.parseEnv(sheet); - newFileInfo.entryPath = env.currentFileInfo.entryPath; - newFileInfo.rootpath = env.currentFileInfo.rootpath; - newFileInfo.rootFilename = env.currentFileInfo.rootFilename; - } else { - env = new less.tree.parseEnv(less); - env.mime = sheet.type; - newFileInfo.entryPath = hrefParts.path; - newFileInfo.rootpath = less.rootpath || hrefParts.path; - newFileInfo.rootFilename = href; - } - - if (env.relativeUrls) { - //todo - this relies on option being set on less object rather than being passed in as an option - // - need an originalRootpath - if (less.rootpath) { - newFileInfo.rootpath = extractUrlParts(less.rootpath + pathDiff(hrefParts.path, newFileInfo.entryPath)).path; - } else { - newFileInfo.rootpath = hrefParts.path; - } - } - - xhr(href, sheet.type, function (data, lastModified) { - // Store data this session - session_cache += data.replace(/@import .+?;/ig, ''); - - if (!reload && styles && lastModified && - (new(Date)(lastModified).valueOf() === - new(Date)(styles.timestamp).valueOf())) { - // Use local copy - createCSS(styles.css, sheet); - callback(null, null, data, sheet, { local: true, remaining: remaining }, href); - } else { - // Use remote copy (re-parse) - try { - env.contents[href] = data; // Updating content cache - env.paths = [hrefParts.path]; - env.currentFileInfo = newFileInfo; - - new(less.Parser)(env).parse(data, function (e, root) { - if (e) { return callback(e, null, null, sheet); } - try { - callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining }, href); - //TODO - there must be a better way? A generic less-to-css function that can both call error - //and removeNode where appropriate - //should also add tests - if (env.currentFileInfo.rootFilename === href) { - removeNode(document.getElementById('less-error-message:' + extractId(href))); - } - } catch (e) { - callback(e, null, null, sheet); - } - }); - } catch (e) { - callback(e, null, null, sheet); - } - } - }, function (status, url) { - callback({ type: 'File', message: "'" + url + "' wasn't found (" + status + ")" }, null, null, sheet); - }); -} - -function extractId(href) { - return href.replace(/^[a-z-]+:\/+?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function createCSS(styles, sheet, lastModified) { - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If this has already been inserted into the DOM, we may need to replace it - var oldCss = document.getElementById(id); - var keepOldCss = false; - - // Create a new stylesheet node for insertion or (if necessary) replacement - var css = document.createElement('style'); - css.setAttribute('type', 'text/css'); - if (sheet.media) { - css.setAttribute('media', sheet.media); - } - css.id = id; - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - css.appendChild(document.createTextNode(styles)); - - // If new contents match contents of oldCss, don't replace oldCss - keepOldCss = (oldCss !== null && oldCss.childNodes.length > 0 && css.childNodes.length > 0 && - oldCss.firstChild.nodeValue === css.firstChild.nodeValue); - } - - var head = document.getElementsByTagName('head')[0]; - - // If there is no oldCss, just append; otherwise, only append if we need - // to replace oldCss with an updated stylesheet - if (oldCss == null || keepOldCss === false) { - var nextEl = sheet && sheet.nextSibling || null; - (nextEl || document.getElementsByTagName('head')[0]).parentNode.insertBefore(css, nextEl); - } - if (oldCss && keepOldCss === false) { - head.removeChild(oldCss); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.'); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save'); - } - } -} - -function xhr(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? less.fileAsync : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - if (isFileProtocol && !less.fileAsync) { - if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new(XMLHttpRequest); - } else { - try { - return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX."); - return null; - } - } -} - -function removeNode(node) { - return node && node.parentNode.removeChild(node); -} - -function log(str) { - if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } -} - -function error(e, rootHref) { - var id = 'less-error-message:' + extractId(rootHref || ""); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, error = []; - var filename = e.filename || rootHref; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - '

    ' + '

    in ' + filenameNoPath + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] != undefined) { - error.push(template.replace(/\{line\}/, (parseInt(e.line) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - '
      ' + error.join('') + '
    '; - } else if (e.stack) { - content += '
    ' + e.stack.split('\n').slice(1).join('
    '); - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #dd6666;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.line {', - 'color: #ff0000;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); 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This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser, - rootFilename = env && env.filename; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed around by reference. - if (!(env instanceof tree.parseEnv)) { - env = new tree.parseEnv(env); - } - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, currentFileInfo, importOptions, callback) { - var parserImports = this; - this.queue.push(path); - - var fileParsedFunc = function (e, root, fullPath) { - parserImports.queue.splice(parserImports.queue.indexOf(path), 1); // Remove the path from the queue - - var importedPreviously = fullPath in parserImports.files || fullPath === rootFilename; - - parserImports.files[fullPath] = root; // Store the root - - if (e && !parserImports.error) { parserImports.error = e; } - - callback(e, root, importedPreviously, fullPath); - }; - - if (less.Parser.importer) { - less.Parser.importer(path, currentFileInfo, fileParsedFunc, env); - } else { - less.Parser.fileLoader(path, currentFileInfo, function(e, contents, fullPath, newFileInfo) { - if (e) {fileParsedFunc(e); return;} - - var newEnv = new tree.parseEnv(env); - - newEnv.currentFileInfo = newFileInfo; - newEnv.processImports = false; - newEnv.contents[fullPath] = contents; - - if (currentFileInfo.reference || importOptions.reference) { - newFileInfo.reference = true; - } - - if (importOptions.inline) { - fileParsedFunc(null, contents, fullPath); - } else { - new(less.Parser)(newEnv).parse(contents, function (e, root) { - fileParsedFunc(e, root, fullPath); - }); - } - }, env); - } - } - }; - - function save() { temp = chunks[j], memo = i, current = i; } - function restore() { chunks[j] = temp, i = memo, current = i; } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - function isWhitespace(c) { - // Could change to \s? - var code = c.charCodeAt(0); - return code === 32 || code === 10 || code === 9; - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, length; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - endIndex = i + chunks[j].length, - mem = i += length; - - while (i < endIndex) { - if (! isWhitespace(input.charAt(i))) { break; } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++; } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - return tok.test(chunks[j]); - } - } - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, inputStream) { - var n = index + 1, - line = null, - column = -1; - - while (--n >= 0 && inputStream.charAt(n) !== '\n') { - column++; - } - - if (typeof index === 'number') { - line = (inputStream.slice(0, index).match(/\n/g) || "").length; - } - - return { - line: line, - column: column - }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - callLine = e.call && getLocation(e.call, input).line, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = callLine + 1; - this.callExtract = lines[callLine]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, line, lines, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - parser.imports.contents[env.currentFileInfo.filename] = input; - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length;) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - } - } - - switch (c) { - case '{': - if (!inParam) { - level++; - chunk.push(c); - break; - } - /* falls through */ - case '}': - if (!inParam) { - level--; - chunk.push(c); - chunks[++j] = chunk = []; - break; - } - /* falls through */ - case '(': - if (!inParam) { - inParam = true; - chunk.push(c); - break; - } - /* falls through */ - case ')': - if (inParam) { - inParam = false; - chunk.push(c); - break; - } - /* falls through */ - default: - chunk.push(c); - } - - i++; - } - if (level !== 0) { - error = new(LessError)({ - index: i-1, - type: 'Parse', - message: (level > 0) ? "missing closing `}`" : "missing opening `{`", - filename: env.currentFileInfo.filename - }, env); - } - - return chunks.map(function (c) { return c.join(''); }); - })([[]]); - - if (error) { - return callback(new(LessError)(error, env)); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - return function (options, variables) { - options = options || {}; - var evaldRoot, - css, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, null, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - evaldRoot = evaluate.call(this, evalEnv); - - new(tree.joinSelectorVisitor)() - .run(evaldRoot); - - new(tree.processExtendsVisitor)() - .run(evaldRoot); - - new(tree.toCSSVisitor)({compress: Boolean(options.compress)}) - .run(evaldRoot); - - if (options.sourceMap) { - evaldRoot = new tree.sourceMapOutput( - { - writeSourceMap: options.writeSourceMap, - rootNode: evaldRoot, - contentsMap: parser.imports.contents, - sourceMapFilename: options.sourceMapFilename, - outputFilename: options.sourceMapOutputFilename, - sourceMapBasepath: options.sourceMapBasepath, - sourceMapRootpath: options.sourceMapRootpath, - outputSourceFiles: options.outputSourceFiles, - sourceMapGenerator: options.sourceMapGenerator - }); - } - - css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits)}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.cleancss && less.mode === 'node') { - return require('clean-css').process(css); - } else if (options.compress) { - return css.replace(/(^(\s)+)|((\s)+$)/g, ""); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - var loc = getLocation(i, input); - lines = input.split('\n'); - line = loc.line + 1; - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: loc.column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - return callback(e); - } - else { - return callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - return finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.extendRule) || $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/) || $(/^;+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') { return; } - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true, i, env.currentFileInfo); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment, false, i, env.currentFileInfo); - } - }, - - comments: function () { - var comment, comments = []; - - while(comment = $(this.comment)) { - comments.push(comment); - } - - return comments; - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++, e = true; } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; } - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - var color = tree.Color.fromKeyword(k); - if (color) { - return color; - } - return new(tree.Keyword)(k); - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) { return; } - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null; } - else { i += name.length; } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { - break; - } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted) || - $(this.entities.unicodeDescriptor); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) { - return; - } - - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - /*jshint eqnull:true */ - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) { - return; - } - - if (value = $(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - if (ud = $(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/)) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '`') { return; } - if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) { - error("You are using JavaScript, which has been disabled."); - } - - if (e) { $('~'); } - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1]; } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList = []; - - if (!$(isRule ? /^&:extend\(/ : /^:extend\(/)) { return; } - - do { - option = null; - elements = []; - while (true) { - option = $(/^(all)(?=\s*(\)|,))/); - if (option) { break; } - e = $(this.element); - if (!e) { break; } - elements.push(e); - } - - option = option && option[1]; - - extendList.push(new(tree.Extend)(new(tree.Selector)(elements), option, index)); - - } while($(",")); - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i), important = false; - - if (s !== '.' && s !== '#') { return; } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i, env.currentFileInfo)); - c = $('>'); - } - if ($('(')) { - args = this.mixin.args.call(this, true).args; - expect(')'); - } - - args = args || []; - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - - restore(); - }, - args: function (isCall) { - var expressions = [], argsSemiColon = [], isSemiColonSeperated, argsComma = [], expressionContainsNamed, name, nameLoop, value, arg, - returner = {args:null, variadic: false}; - while (true) { - if (isCall) { - arg = $(this.expression); - } else { - $(this.comments); - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value.length == 1) { - val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(this.expression); - nameLoop = (name = val.name); - } else if (!isCall && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($(',')) { - continue; - } - - if ($(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) { - return; - } - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - var argInfo = this.mixin.args.call(this, false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - $(this.comments); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) ||$(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) { return; } - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^()@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(')) { - if ((v = ($(this.selector))) && - $(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, i, env.currentFileInfo); } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|') { - i++; - while (input.charAt(i).match(/\s/)) { i++; } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - // - // A CSS selector (see selector below) - // with less extensions e.g. the ability to extend and guard - // - lessSelector: function () { - return this.selector(true); - }, - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function (isLess) { - var e, elements = [], c, extend, extendList = [], when, condition; - - while ((isLess && (extend = $(this.extend))) || (isLess && (when = $(/^when/))) || (e = $(this.element))) { - if (when) { - condition = expect(this.conditions, 'expected condition'); - } else if (condition) { - error("CSS guard can only be used at the end of selector"); - } else if (extend) { - extendList.push.apply(extendList, extend); - } else { - if (extendList.length) { - error("Extend can only be used at the end of selector"); - } - c = input.charAt(i); - elements.push(e); - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { - break; - } - } - - if (elements.length > 0) { return new(tree.Selector)(elements, extendList, condition, i, env.currentFileInfo); } - if (extendList.length) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - var key, val, op; - - if (! $('[')) { return; } - - if (!(key = $(this.entities.variableCurly))) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - if ((op = $(/^[|~*$^]?=/))) { - val = $(this.entities.quoted) || $(/^[0-9]+%/) || $(/^[\w-]+/) || $(this.entities.variableCurly); - } - - expect(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - while (s = $(this.lessSelector)) { - selectors.push(s); - $(this.comments); - if (! $(',')) { break; } - if (s.condition) { - error("Guards are only currently allowed on a single selector."); - } - $(this.comments); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) { - ruleset.debugInfo = debugInfo; - } - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, c = input.charAt(i), important, merge = false; - save(); - - if (c === '.' || c === '#' || c === '&') { return; } - - if (name = $(this.variable) || $(this.ruleProperty)) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || (name.charAt(0) === '@')) ? - ($(this.value) || $(this.anonymousValue)) : - ($(this.anonymousValue) || $(this.value)); - - - important = $(this.important); - if (name[name.length-1] === "+") { - merge = true; - name = name.substr(0, name.length - 1); - } - - if (value && $(this.end)) { - return new (tree.Rule)(name, value, important, merge, memo, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } - }, - anonymousValue: function () { - var match; - if (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j])) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import?\s+/); - - var options = (dir ? $(this.importOptions) : null) || {}; - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $('(')) { return null; } - do { - if (o = $(this.importOption)) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $(',')) { break; } - } - } while (o); - expect(')'); - return options; - }, - - importOption: function() { - var opt = $(/^(less|css|multiple|once|inline|reference)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = ($(this.entities.keyword) || $(this.entities.variable))) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.value); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null; } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break; } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break; } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - media.debugInfo = debugInfo; - } - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression, identifier; - - if (input.charAt(i) !== '@') { return; } - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - if (!name) { return; } - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@host": - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - identifier = ($(/^[^{]+/) || '').trim(); - if (identifier) { - name += " " + identifier; - } - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules, i, env.currentFileInfo); - } - } else { - if ((value = hasExpression ? $(this.expression) : $(this.entity)) && $(';')) { - var directive = new(tree.Directive)(name, value, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = []; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break; } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($('(')) { - if (a = $(this.addition)) { - e = new(tree.Expression)([a]); - expect(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced; - if (m = $(this.operand)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while (!peek(/^\/[*\/]/) && (op = ($('/') || $('*')))) { - if (a = $(this.operand)) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } else { - break; - } - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - if (m = $(this.multiplication)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while ((op = $(/^[-+]\s+/) || (!isSpaced && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while (peek(/^,\s*(not\s*)?\(/) && $(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true; } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|<=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-'); } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = []; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/) && (delim = $('/'))) { - entities.push(new(tree.Anonymous)(delim)); - } - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/)) { - return name[1]; - } - }, - ruleProperty: function () { - var name; - - if (name = $(/^(\*?-?[_a-zA-Z0-9-]+)\s*(\+?)\s*:/)) { - return name[1] + (name[2] || ""); - } - } - } - }; -}; - - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 256); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; } - else if (h * 2 < 1) { return m2; } - else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; } - else { return m1; } - } - - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - // filter: saturate(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if ((color.luma() * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - /*jshint loopfunc:true */ - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - if(!(val instanceof tree.Dimension)) { - throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") }; - } - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return this._math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _math: function (fn, unit, n) { - if (n instanceof tree.Dimension) { - /*jshint eqnull:true */ - return new(tree.Dimension)(fn(parseFloat(n.value)), unit == null ? n.unit : unit); - } else if (typeof(n) === 'number') { - return fn(n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - _minmax: function (isMin, args) { - args = Array.prototype.slice.call(args); - switch(args.length) { - case 0: throw { type: "Argument", message: "one or more arguments required" }; - case 1: return args[0]; - } - var i, j, current, currentUnified, referenceUnified, unit, - order = [], // elems only contains original argument values. - values = {}; // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - for (i = 0; i < args.length; i++) { - current = args[i]; - if (!(current instanceof tree.Dimension)) { - order.push(current); - continue; - } - currentUnified = current.unify(); - unit = currentUnified.unit.toString(); - j = values[unit]; - if (j === undefined) { - values[unit] = order.length; - order.push(current); - continue; - } - referenceUnified = order[j].unify(); - if ( isMin && currentUnified.value < referenceUnified.value || - !isMin && currentUnified.value > referenceUnified.value) { - order[j] = current; - } - } - if (order.length == 1) { - return order[0]; - } - args = order.map(function (a) { return a.toCSS(this.env); }) - .join(this.env.compress ? "," : ", "); - return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")"); - }, - min: function () { - return this._minmax(true, arguments); - }, - max: function () { - return this._minmax(false, arguments); - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - var colorCandidate = n.value, - returnColor; - returnColor = tree.Color.fromKeyword(colorCandidate); - if (returnColor) { - return returnColor; - } - if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) { - return new(tree.Color)(colorCandidate.slice(1)); - } - throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" }; - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - - /* Blending modes */ - - multiply: function(color1, color2) { - var r = color1.rgb[0] * color2.rgb[0] / 255; - var g = color1.rgb[1] * color2.rgb[1] / 255; - var b = color1.rgb[2] * color2.rgb[2] / 255; - return this.rgb(r, g, b); - }, - screen: function(color1, color2) { - var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - overlay: function(color1, color2) { - var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - softlight: function(color1, color2) { - var t = color2.rgb[0] * color1.rgb[0] / 255; - var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255; - t = color2.rgb[1] * color1.rgb[1] / 255; - var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255; - t = color2.rgb[2] * color1.rgb[2] / 255; - var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255; - return this.rgb(r, g, b); - }, - hardlight: function(color1, color2) { - var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255; - var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255; - var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - difference: function(color1, color2) { - var r = Math.abs(color1.rgb[0] - color2.rgb[0]); - var g = Math.abs(color1.rgb[1] - color2.rgb[1]); - var b = Math.abs(color1.rgb[2] - color2.rgb[2]); - return this.rgb(r, g, b); - }, - exclusion: function(color1, color2) { - var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255; - var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255; - var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - average: function(color1, color2) { - var r = (color1.rgb[0] + color2.rgb[0]) / 2; - var g = (color1.rgb[1] + color2.rgb[1]) / 2; - var b = (color1.rgb[2] + color2.rgb[2]) / 2; - return this.rgb(r, g, b); - }, - negation: function(color1, color2) { - var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]); - var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]); - var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]); - return this.rgb(r, g, b); - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - return Array.isArray(values.value) - ? values.value[index] : Array(values)[index]; - }, - length: function(values) { - var n = Array.isArray(values.value) ? values.value.length : 1; - return new tree.Dimension(n); - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require("fs"), - path = require("path"), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) { mimetype += ';base64'; } - } - else { - useBase64 = /;base64$/.test(mimetype); - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "'data:" + mimetype + ',' + buf + "'"; - return new(tree.URL)(new(tree.Anonymous)(uri)); - }, - - "svg-gradient": function(direction) { - - function throwArgumentDescriptor() { - throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" }; - } - - if (arguments.length < 3) { - throwArgumentDescriptor(); - } - var stops = Array.prototype.slice.call(arguments, 1), - gradientDirectionSvg, - gradientType = "linear", - rectangleDimension = 'x="0" y="0" width="1" height="1"', - useBase64 = true, - renderEnv = {compress: false}, - returner, - directionValue = direction.toCSS(renderEnv), - i, color, position, positionValue, alpha; - - switch (directionValue) { - case "to bottom": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - gradientType = "radial"; - gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" }; - } - returner = '' + - '' + - '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>'; - - for (i = 0; i < stops.length; i+= 1) { - if (stops[i].value) { - color = stops[i].value[0]; - position = stops[i].value[1]; - } else { - color = stops[i]; - position = undefined; - } - - if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) { - throwArgumentDescriptor(); - } - positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%"; - alpha = color.alpha; - returner += ''; - } - returner += '' + - ''; - - if (useBase64) { - // only works in node, needs interface to what is supported in environment - try { - returner = new Buffer(returner).toString('base64'); - } catch(e) { - useBase64 = false; - } - } - - returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'"; - return new(tree.URL)(new(tree.Anonymous)(returner)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -var mathFunctions = [{name:"ceil"}, {name:"floor"}, {name: "sqrt"}, {name:"abs"}, - {name:"tan", unit: ""}, {name:"sin", unit: ""}, {name:"cos", unit: ""}, - {name:"atan", unit: "rad"}, {name:"asin", unit: "rad"}, {name:"acos", unit: "rad"}], - createMathFunction = function(name, unit) { - return function(n) { - /*jshint eqnull:true */ - if (unit != null) { - n = n.unify(); - } - return this._math(Math[name], unit, n); - }; - }; - -for(var i = 0; i < mathFunctions.length; i++) { - tree.functions[mathFunctions[i].name] = createMathFunction(mathFunctions[i].name, mathFunctions[i].unit); -} - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); - -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); - -(function (tree) { - -tree.debugInfo = function(env, ctx, lineSeperator) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:/\\])/g, function (a) { - if (a == '\\') { - a = '\/'; - } - return '\\' + a; - }) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r; } - } - return null; -}; - -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false); }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -tree.toCSS = function (env) { - var strs = []; - this.genCSS(env, { - add: function(chunk, fileInfo, index) { - strs.push(chunk); - }, - isEmpty: function () { - return strs.length === 0; - } - }); - return strs.join(''); -}; - -tree.outputRuleset = function (env, output, rules) { - output.add((env.compress ? '{' : ' {\n')); - env.tabLevel = (env.tabLevel || 0) + 1; - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "); - for(var i = 0; i < rules.length; i++) { - output.add(tabRuleStr); - rules[i].genCSS(env, output); - output.add(env.compress ? '' : '\n'); - } - env.tabLevel--; - output.add(tabSetStr + "}"); -}; - -})(require('./tree')); - -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } - return this; - }, - genCSS: function (env, output) { - output.add("alpha(opacity="); - - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - - output.add(")"); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Anonymous = function (string, index, currentFileInfo, mapLines) { - this.value = string.value || string; - this.index = index; - this.mapLines = mapLines; - this.currentFileInfo = currentFileInfo; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - eval: function () { return this; }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - }, - genCSS: function (env, output) { - output.add(this.value, this.currentFileInfo, this.index, this.mapLines); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - }, - genCSS: function (env, output) { - output.add(this.key + '='); - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - this.args = visitor.visit(this.args); - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - /*jshint eqnull:true */ - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - return new tree.Call(this.name, args, this.index, this.currentFileInfo); - }, - - genCSS: function (env, output) { - output.add(this.name + "(", this.currentFileInfo, this.index); - - for(var i = 0; i < this.args.length; i++) { - this.args[i].genCSS(env, output); - if (i + 1 < this.args.length) { - output.add(", "); - } - } - - output.add(")"); - }, - - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; - -var transparentKeyword = "transparent"; - -tree.Color.prototype = { - type: "Color", - eval: function () { return this; }, - luma: function () { return (0.2126 * this.rgb[0] / 255) + (0.7152 * this.rgb[1] / 255) + (0.0722 * this.rgb[2] / 255); }, - - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress; - - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - if (this.alpha < 1.0) { - if (this.alpha === 0 && this.isTransparentKeyword) { - return transparentKeyword; - } - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.toRGB(); - - if (compress) { - var splitcolor = color.split(''); - - // Convert color to short format - if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) { - color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5]; - } - } - - return color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toRGB: function () { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - -tree.Color.fromKeyword = function(keyword) { - if (tree.colors.hasOwnProperty(keyword)) { - // detect named color - return new(tree.Color)(tree.colors[keyword].slice(1)); - } - if (keyword === transparentKeyword) { - var transparent = new(tree.Color)([0, 0, 0], 0); - transparent.isTransparentKeyword = true; - return transparent; - } -}; - - -})(require('../tree')); - -(function (tree) { - -tree.Comment = function (value, silent, index, currentFileInfo) { - this.value = value; - this.silent = !!silent; - this.currentFileInfo = currentFileInfo; -}; -tree.Comment.prototype = { - type: "Comment", - genCSS: function (env, output) { - if (this.debugInfo) { - output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index); - } - output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n - }, - toCSS: tree.toCSS, - isSilent: function(env) { - var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced), - isCompressed = env.compress && !this.value.match(/^\/\*!/); - return this.silent || isReference || isCompressed; - }, - eval: function () { return this; }, - markReferenced: function () { - this.isReferenced = true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<' || op === '<='; - case 0: return op === '=' || op === '>=' || op === '=<' || op === '<='; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); - -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - genCSS: function (env, output) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = this.value, - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && this.unit.isLength()) { - output.add(strValue); - return; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - output.add(strValue); - this.unit.genCSS(env, output); - }, - toCSS: tree.toCSS, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - /*jshint noempty:false */ - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a = this.unify(), b = other.unify(), - aValue = a.value, bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - if (!b.unit.isEmpty() && a.unit.compare(b.unit) !== 0) { - return -1; - } - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'm', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, targetUnit, derivedConversions = {}, applyUnit; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - applyUnit = function (atomicUnit, denominator) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(applyUnit); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - genCSS: function (env, output) { - if (this.numerator.length >= 1) { - output.add(this.numerator[0]); - } else - if (this.denominator.length >= 1) { - output.add(this.denominator[0]); - } else - if ((!env || !env.strictUnits) && this.backupUnit) { - output.add(this.backupUnit); - } - }, - toCSS: tree.toCSS, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isLength: function () { - return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/)); - }, - - isEmpty: function () { - return this.numerator.length === 0 && this.denominator.length === 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length === 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, result = {}, mapUnit; - - mapUnit = function (atomicUnit) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }; - - for (var groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(mapUnit); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Directive = function (name, value, index, currentFileInfo) { - this.name = name; - - if (Array.isArray(value)) { - this.rules = [new(tree.Ruleset)([], value)]; - this.rules[0].allowImports = true; - } else { - this.value = value; - } - this.currentFileInfo = currentFileInfo; - -}; -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - this.rules = visitor.visit(this.rules); - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name, this.currentFileInfo, this.index); - if (this.rules) { - tree.outputRuleset(env, output, this.rules); - } else { - output.add(' '); - this.value.genCSS(env, output); - output.add(';'); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var evaldDirective = this; - if (this.rules) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name, null, this.index, this.currentFileInfo); - evaldDirective.rules = [this.rules[0].eval(env)]; - evaldDirective.rules[0].root = true; - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - markReferenced: function () { - var i, rules; - this.isReferenced = true; - if (this.rules) { - rules = this.rules[0].rules; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Element = function (combinator, value, index, currentFileInfo) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - this.combinator = visitor.visit(this.combinator); - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index, - this.currentFileInfo); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env), this.currentFileInfo, this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value === '' && this.combinator.value.charAt(0) === '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - _outputMap: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : ' + ', - '~' : ' ~ ', - '>' : ' > ', - '|' : '|' - }, - _outputMapCompressed: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : '+', - '~' : '~', - '>' : '>', - '|' : '|' - }, - genCSS: function (env, output) { - output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - genCSS: function (env, output) { - for(var i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i + 1 < this.value.length) { - output.add(" "); - } - } - }, - toCSS: tree.toCSS, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i, - selectorElements; - - for(i = 0; i < selectors.length; i++) { - selectorElements = selectors[i].elements; - // duplicate the logic in genCSS function inside the selector node. - // future TODO - move both logics into the selector joiner visitor - if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") { - selectorElements[0].combinator.value = ' '; - } - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); - -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined || this.options.inline) { - this.css = !this.options.less || this.options.inline; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.path = visitor.visit(this.path); - if (!this.options.inline) { - this.root = visitor.visit(this.root); - } - }, - genCSS: function (env, output) { - if (this.css) { - output.add("@import ", this.currentFileInfo, this.index); - this.path.genCSS(env, output); - if (this.features) { - output.add(" "); - this.features.genCSS(env, output); - } - output.add(';'); - } - }, - toCSS: tree.toCSS, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - - if (!(path instanceof tree.URL)) { - if (rootpath) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath + pathValue; - } - } - path.value = env.normalizePath(path.value); - } - - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { return []; } - - if (this.options.inline) { - //todo needs to reference css file not import - var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true); - return this.features ? new(tree.Media)([contents], this.features.value) : [contents]; - } else if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - /*jshint loopfunc:true */ - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Keyword = function (value) { this.value = value; }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); - -(function (tree) { - -tree.Media = function (value, features, index, currentFileInfo) { - this.index = index; - this.currentFileInfo = currentFileInfo; - - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.rules = [new(tree.Ruleset)(selectors, value)]; - this.rules[0].allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.rules = visitor.visit(this.rules); - }, - genCSS: function (env, output) { - output.add('@media ', this.currentFileInfo, this.index); - this.features.genCSS(env, output); - tree.outputRuleset(env, output, this.rules); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)([], [], this.index, this.currentFileInfo); - if(this.debugInfo) { - this.rules[0].debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.rules[0]); - media.rules = [this.rules[0].eval(env)]; - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env); - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', this.index, this.currentFileInfo); - return [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)]; - }, - markReferenced: function () { - var i, rules = this.rules[0].rules; - this.isReferenced = true; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])]; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - this.arguments = visitor.visit(this.arguments); - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - if (mixin.matchArgs(args, env)) { - if (!mixin.matchCondition || mixin.matchCondition(args, env)) { - try { - if (!(mixin instanceof tree.mixin.Definition)) { - mixin = new tree.mixin.Definition("", [], mixin.rules, null, false); - mixin.originalRuleset = mixins[m].originalRuleset || mixins[m]; - } - //if (this.important) { - // isImportant = env.isImportant; - // env.isImportant = true; - //} - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - //if (this.important) { - // env.isImportant = isImportant; - //} - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - match = true; - } - } - if (match) { - if (!this.currentFileInfo || !this.currentFileInfo.reference) { - for (i = 0; i < rules.length; i++) { - rule = rules[i]; - if (rule.markReferenced) { - rule.markReferenced(); - } - } - } - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")`", - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1; } - else { return count; } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - this.params = visitor.visit(this.params); - this.rules = visitor.visit(this.rules); - this.condition = visitor.visit(this.condition); - }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - /*jshint boss:true */ - var frame = new(tree.Ruleset)(null, []), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.rules.unshift(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) { continue; } - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.rules.unshift(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - rules, ruleset; - - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules); - ruleset.originalRuleset = this; - ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames))); - if (important) { - ruleset = this.parent.makeImportant.apply(ruleset); - } - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] // the parameter variables - .concat(this.frames) // the parent namespace/mixin frames - .concat(env.frames)))) { // the current environment frames - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (! this.variadic) { - if (argsLength < this.required) { return false; } - if (argsLength > this.params.length) { return false; } - } else { - if (argsLength < (this.required - 1)) { return false; } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('-'); - this.value.genCSS(env, output); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { type: "Operation", - message: "Can't substract or divide a color from a number" }; - } - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - genCSS: function (env, output) { - this.operands[0].genCSS(env, output); - if (this.isSpaced) { - output.add(" "); - } - output.add(this.op); - if (this.isSpaced) { - output.add(" "); - } - this.operands[1].genCSS(env, output); - }, - toCSS: tree.toCSS -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('('); - this.value.genCSS(env, output); - output.add(')'); - }, - toCSS: tree.toCSS, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - genCSS: function (env, output) { - if (!this.escaped) { - output.add(this.quote, this.currentFileInfo, this.index); - } - output.add(this.value); - if (!this.escaped) { - output.add(this.quote); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.merge = merge; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - this.variable = (name.charAt(0) === '@'); -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index); - try { - this.value.genCSS(env, output); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index); - }, - toCSS: tree.toCSS, - eval: function (env) { - var strictMathBypass = false; - if (this.name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - return new(tree.Rule)(this.name, - this.value.eval(env), - this.important, - this.merge, - this.index, this.currentFileInfo, this.inline); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.merge, - this.index, this.currentFileInfo, this.inline); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - if (this.paths) { - for(var i = 0; i < this.paths.length; i++) { - this.paths[i] = visitor.visit(this.paths[i]); - } - } else { - this.selectors = visitor.visit(this.selectors); - } - this.rules = visitor.visit(this.rules); - }, - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env); }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules; - var rule; - var i; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // currrent selectors - if (!env.selectors) { - env.selectors = []; - } - env.selectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - /*jshint loopfunc:true */ - rules = ruleset.rules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - ruleset.rules.splice.apply(ruleset.rules, [i, 1].concat(rules)); - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (i = 0; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - env.selectors.shift(); - - if (env.mediaBlocks) { - for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var i, rules; - for (i = 0; i < this.rules.length; i++) { - if (this.rules[i] instanceof tree.Import) { - rules = this.rules[i].eval(env); - if (typeof rules.length === "number") { - this.rules.splice.apply(this.rules, [i, 1].concat(rules)); - i+= rules.length-1; - } else { - this.rules.splice(i, 1, rules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - matchCondition: function (args, env) { - var lastSelector = this.selectors[this.selectors.length-1]; - if (lastSelector.condition && - !lastSelector.condition.eval( - new(tree.evalEnv)(env, - env.frames))) { - return false; - } - return true; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (this._variables) { return this._variables; } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - return this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - }, - find: function (selector, self) { - self = self || this; - var rules = [], match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key]; } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - genCSS: function (env, output) { - var i, j, - ruleNodes = [], - rulesetNodes = [], - debugInfo, // Line number debugging - rule, - firstRuleset = true, - path; - - env.tabLevel = (env.tabLevel || 0); - - if (!this.root) { - env.tabLevel++; - } - - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "); - - for (i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - if (rule.rules || (rule instanceof tree.Media) || rule instanceof tree.Directive || (this.root && rule instanceof tree.Comment)) { - rulesetNodes.push(rule); - } else { - ruleNodes.push(rule); - } - } - - // If this is the root node, we don't render - // a selector, or {}. - if (!this.root) { - debugInfo = tree.debugInfo(env, this, tabSetStr); - - if (debugInfo) { - output.add(debugInfo); - output.add(tabSetStr); - } - - for(i = 0; i < this.paths.length; i++) { - path = this.paths[i]; - env.firstSelector = true; - for(j = 0; j < path.length; j++) { - path[j].genCSS(env, output); - env.firstSelector = false; - } - if (i + 1 < this.paths.length) { - output.add(env.compress ? ',' : (',\n' + tabSetStr)); - } - } - - output.add((env.compress ? '{' : ' {\n') + tabRuleStr); - } - - // Compile rules and rulesets - for (i = 0; i < ruleNodes.length; i++) { - rule = ruleNodes[i]; - - // @page{ directive ends up with root elements inside it, a mix of rules and rulesets - // In this instance we do not know whether it is the last property - if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) { - env.lastRule = true; - } - - if (rule.genCSS) { - rule.genCSS(env, output); - } else if (rule.value) { - output.add(rule.value.toString()); - } - - if (!env.lastRule) { - output.add(env.compress ? '' : ('\n' + tabRuleStr)); - } else { - env.lastRule = false; - } - } - - if (!this.root) { - output.add((env.compress ? '}' : '\n' + tabSetStr + '}')); - env.tabLevel--; - } - - for (i = 0; i < rulesetNodes.length; i++) { - if (ruleNodes.length && firstRuleset) { - output.add((env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr)); - } - if (!firstRuleset) { - output.add((env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr)); - } - firstRuleset = false; - rulesetNodes[i].genCSS(env, output); - } - - if (!output.isEmpty() && !env.compress && this.firstRoot) { - output.add('\n'); - } - }, - - toCSS: tree.toCSS, - - markReferenced: function () { - for (var s = 0; s < this.selectors.length; s++) { - this.selectors[s].markReferenced(); - } - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for (i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for (j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length === 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0, el.index, el.currentFileInfo)); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for (k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = selector.createDerived([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for (i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length === 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for (i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); - -(function (tree) { - -tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) { - this.elements = elements; - this.extendList = extendList || []; - this.condition = condition; - this.currentFileInfo = currentFileInfo || {}; - this.isReferenced = isReferenced; - if (!condition) { - this.evaldCondition = true; - } -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - this.elements = visitor.visit(this.elements); - this.extendList = visitor.visit(this.extendList); - this.condition = visitor.visit(this.condition); - }, - createDerived: function(elements, extendList, evaldCondition) { - /*jshint eqnull:true */ - evaldCondition = evaldCondition != null ? evaldCondition : this.evaldCondition; - var newSelector = new(tree.Selector)(elements, extendList || this.extendList, this.condition, this.index, this.currentFileInfo, this.isReferenced); - newSelector.evaldCondition = evaldCondition; - return newSelector; - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, max, i; - - oelements = other.elements.slice( - (other.elements.length && other.elements[0].value === "&") ? 1 : 0); - olen = oelements.length; - max = Math.min(len, olen); - - if (olen === 0 || len < olen) { - return false; - } else { - for (i = 0; i < max; i++) { - if (elements[i].value !== oelements[i].value) { - return false; - } - } - } - return true; - }, - eval: function (env) { - var evaldCondition = this.condition && this.condition.eval(env); - - return this.createDerived(this.elements.map(function (e) { - return e.eval(env); - }), this.extendList.map(function(extend) { - return extend.eval(env); - }), evaldCondition); - }, - genCSS: function (env, output) { - var i, element; - if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") { - output.add(' ', this.currentFileInfo, this.index); - } - if (!this._css) { - //TODO caching? speed comparison? - for(i = 0; i < this.elements.length; i++) { - element = this.elements[i]; - element.genCSS(env, output); - } - } - }, - toCSS: tree.toCSS, - markReferenced: function () { - this.isReferenced = true; - }, - getIsReferenced: function() { - return !this.currentFileInfo.reference || this.isReferenced; - }, - getIsOutput: function() { - return this.evaldCondition; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - eval: function () { return this; } -}; - -})(require('../tree')); - -(function (tree) { - -tree.URL = function (val, currentFileInfo) { - this.value = val; - this.currentFileInfo = currentFileInfo; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add("url("); - this.value.genCSS(env, output); - output.add(")"); - }, - toCSS: tree.toCSS, - eval: function (ctx) { - var val = this.value.eval(ctx), rootpath; - - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - val.value = ctx.normalizePath(val.value); - - return new(tree.URL)(val, null); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - genCSS: function (env, output) { - var i; - for(i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i+1 < this.value.length) { - output.add((env && env.compress) ? ',' : ', '); - } - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { - this.name = name; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') === 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { - this.evaluating = false; - return variable; - } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); - -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // browser-only, contents of all the files - 'relativeUrls', // option - whether to adjust URL's to be relative - 'rootpath', // option - rootpath to append to URL's - 'strictImports', // option - - 'insecure', // option - whether to allow imports from insecure ssl hosts - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true - 'mime', // browser only - mime type for sheet import - 'useFileCache', // browser only - whether to use the per file session cache - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' - absolute path to the entry file - // 'reference' - whether the file should not be output and only output parts that are referenced - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits', // whether units need to evaluate correctly - 'cleancss', // whether to compress with clean-css - 'sourceMap', // whether to output a source map - 'importMultiple'// whether we are currently importing multiple copies - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - tree.evalEnv.prototype.normalizePath = function( path ) { - var - segments = path.split("/").reverse(), - segment; - - path = []; - while (segments.length !== 0 ) { - segment = segments.pop(); - switch( segment ) { - case ".": - break; - case "..": - if ((path.length === 0) || (path[path.length - 1] === "..")) { - path.push( segment ); - } else { - path.pop(); - } - break; - default: - path.push( segment ); - break; - } - } - - return path.join("/"); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.visitor = function(implementation) { - this._implementation = implementation; - }; - - tree.visitor.prototype = { - visit: function(node) { - - if (node instanceof Array) { - return this.visitArray(node); - } - - if (!node || !node.type) { - return node; - } - - var funcName = "visit" + node.type, - func = this._implementation[funcName], - visitArgs, newNode; - if (func) { - visitArgs = {visitDeeper: true}; - newNode = func.call(this._implementation, node, visitArgs); - if (this._implementation.isReplacing) { - node = newNode; - } - } - if ((!visitArgs || visitArgs.visitDeeper) && node && node.accept) { - node.accept(this); - } - funcName = funcName + "Out"; - if (this._implementation[funcName]) { - this._implementation[funcName](node); - } - return node; - }, - visitArray: function(nodes) { - var i, newNodes = []; - for(i = 0; i < nodes.length; i++) { - var evald = this.visit(nodes[i]); - if (evald instanceof Array) { - evald = this.flatten(evald); - newNodes = newNodes.concat(evald); - } else { - newNodes.push(evald); - } - } - if (this._implementation.isReplacing) { - return newNodes; - } - return nodes; - }, - doAccept: function (node) { - node.accept(this); - }, - flatten: function(arr, master) { - return arr.reduce(this.flattenReduce.bind(this), master || []); - }, - flattenReduce: function(sum, element) { - if (element instanceof Array) { - sum = this.flatten(element, sum); - } else { - sum.push(element); - } - return sum; - } - }; - -})(require('./tree')); -(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode, - inlineCSS = importNode.options.inline; - - if (!importNode.css || inlineCSS) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - - if (importNode.options.multiple) { - env.importMultiple = true; - } - - this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, imported, fullPath) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - - if (imported && !env.importMultiple) { importNode.skip = imported; } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - importNode.importedFilename = fullPath; - if (!inlineCSS && !importNode.skip) { - new(tree.importVisitor)(importVisitor._importer, subFinish, env) - .run(root); - return; - } - } - - subFinish(); - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree')); -(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - var paths = []; - this.contexts.push(paths); - - if (! rulesetNode.root) { - rulesetNode.selectors = rulesetNode.selectors.filter(function(selector) { return selector.getIsOutput(); }); - if (rulesetNode.selectors.length === 0) { - rulesetNode.rules.length = 0; - } - rulesetNode.joinSelectors(paths, context, rulesetNode.selectors); - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree')); -(function (tree) { - tree.toCSSVisitor = function(env) { - this._visitor = new tree.visitor(this); - this._env = env; - }; - - tree.toCSSVisitor.prototype = { - isReplacing: true, - run: function (root) { - return this._visitor.visit(root); - }, - - visitRule: function (ruleNode, visitArgs) { - if (ruleNode.variable) { - return []; - } - return ruleNode; - }, - - visitMixinDefinition: function (mixinNode, visitArgs) { - return []; - }, - - visitExtend: function (extendNode, visitArgs) { - return []; - }, - - visitComment: function (commentNode, visitArgs) { - if (commentNode.isSilent(this._env)) { - return []; - } - return commentNode; - }, - - visitMedia: function(mediaNode, visitArgs) { - mediaNode.accept(this._visitor); - visitArgs.visitDeeper = false; - - if (!mediaNode.rules.length) { - return []; - } - return mediaNode; - }, - - visitDirective: function(directiveNode, visitArgs) { - if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) { - return []; - } - if (directiveNode.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (this.charset) { - if (directiveNode.debugInfo) { - var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n"); - comment.debugInfo = directiveNode.debugInfo; - return this._visitor.visit(comment); - } - return []; - } - this.charset = true; - } - return directiveNode; - }, - - checkPropertiesInRoot: function(rules) { - var ruleNode; - for(var i = 0; i < rules.length; i++) { - ruleNode = rules[i]; - if (ruleNode instanceof tree.Rule && !ruleNode.variable) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null}; - } - } - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var rule, rulesets = []; - if (rulesetNode.firstRoot) { - this.checkPropertiesInRoot(rulesetNode.rules); - } - if (! rulesetNode.root) { - - rulesetNode.paths = rulesetNode.paths - .filter(function(p) { - var i; - if (p[0].elements[0].combinator.value === ' ') { - p[0].elements[0].combinator = new(tree.Combinator)(''); - } - for(i = 0; i < p.length; i++) { - if (p[i].getIsReferenced() && p[i].getIsOutput()) { - return true; - } - return false; - } - }); - - // Compile rules and rulesets - for (var i = 0; i < rulesetNode.rules.length; i++) { - rule = rulesetNode.rules[i]; - - if (rule.rules) { - // visit because we are moving them out from being a child - rulesets.push(this._visitor.visit(rule)); - rulesetNode.rules.splice(i, 1); - i--; - continue; - } - } - // accept the visitor to remove rules and refactor itself - // then we can decide now whether we want it or not - if (rulesetNode.rules.length > 0) { - rulesetNode.accept(this._visitor); - } - visitArgs.visitDeeper = false; - - this._mergeRules(rulesetNode.rules); - this._removeDuplicateRules(rulesetNode.rules); - - // now decide whether we keep the ruleset - if (rulesetNode.rules.length > 0 && rulesetNode.paths.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } else { - rulesetNode.accept(this._visitor); - visitArgs.visitDeeper = false; - if (rulesetNode.firstRoot || rulesetNode.rules.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } - if (rulesets.length === 1) { - return rulesets[0]; - } - return rulesets; - }, - - _removeDuplicateRules: function(rules) { - // remove duplicates - var ruleCache = {}, - ruleList, rule, i; - for(i = rules.length - 1; i >= 0 ; i--) { - rule = rules[i]; - if (rule instanceof tree.Rule) { - if (!ruleCache[rule.name]) { - ruleCache[rule.name] = rule; - } else { - ruleList = ruleCache[rule.name]; - if (ruleList instanceof tree.Rule) { - ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)]; - } - var ruleCSS = rule.toCSS(this._env); - if (ruleList.indexOf(ruleCSS) !== -1) { - rules.splice(i, 1); - } else { - ruleList.push(ruleCSS); - } - } - } - } - }, - - _mergeRules: function (rules) { - var groups = {}, - parts, - rule, - key; - - for (var i = 0; i < rules.length; i++) { - rule = rules[i]; - - if ((rule instanceof tree.Rule) && rule.merge) { - key = [rule.name, - rule.important ? "!" : ""].join(","); - - if (!groups[key]) { - parts = groups[key] = []; - } else { - rules.splice(i--, 1); - } - - parts.push(rule); - } - } - - Object.keys(groups).map(function (k) { - parts = groups[k]; - - if (parts.length > 1) { - rule = parts[0]; - - rule.value = new (tree.Value)(parts.map(function (p) { - return p.value; - })); - } - }); - } - }; - -})(require('./tree')); -(function (tree) { - /*jshint loopfunc:true */ - - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - for(i = 0; i < rulesetNode.rules.length; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rulesetNode.rules[i]); - rulesetNode.extendOnEveryPath = true; - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - for(i = 0; i < rulesetNode.paths.length; i++) { - var selectorPath = rulesetNode.paths[i], - selector = selectorPath[selectorPath.length-1]; - extendList = selector.extendList.slice(0).concat(allSelectorsExtendList).map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if (this.inInheritanceChain(targetExtend, extend)) { continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parents = [targetExtend, extend]; - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - inInheritanceChain: function (possibleParent, possibleChild) { - if (possibleParent === possibleChild) { - return true; - } - if (possibleChild.parents) { - if (this.inInheritanceChain(possibleParent, possibleChild.parents[0])) { - return true; - } - if (this.inInheritanceChain(possibleParent, possibleChild.parents[1])) { - return true; - } - } - return false; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (rulesetNode.extendOnEveryPath || selectorPath[selectorPath.length-1].extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator === '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - elementValue1 = elementValue1.value; - elementValue2 = elementValue2.value; - if (elementValue1 instanceof tree.Selector) { - if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) { - return false; - } - for(var i = 0; i currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - newElements = selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)); - - if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) { - path[path.length - 1].elements = - path[path.length - 1].elements.concat(newElements); - } else { - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - newElements - )); - } - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.sourceMapOutput = function (options) { - this._css = []; - this._rootNode = options.rootNode; - this._writeSourceMap = options.writeSourceMap; - this._contentsMap = options.contentsMap; - this._sourceMapFilename = options.sourceMapFilename; - this._outputFilename = options.outputFilename; - this._sourceMapBasepath = options.sourceMapBasepath; - this._sourceMapRootpath = options.sourceMapRootpath; - this._outputSourceFiles = options.outputSourceFiles; - this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator; - - if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') { - this._sourceMapRootpath += '/'; - } - - this._lineNumber = 0; - this._column = 0; - }; - - tree.sourceMapOutput.prototype.normalizeFilename = function(filename) { - if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) { - filename = filename.substring(this._sourceMapBasepath.length); - if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') { - filename = filename.substring(1); - } - } - return (this._sourceMapRootpath || "") + filename.replace(/\\/g, '/'); - }; - - tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) { - - //ignore adding empty strings - if (!chunk) { - return; - } - - var lines, - sourceLines, - columns, - sourceColumns, - i; - - if (fileInfo) { - var inputSource = this._contentsMap[fileInfo.filename].substring(0, index); - sourceLines = inputSource.split("\n"); - sourceColumns = sourceLines[sourceLines.length-1]; - } - - lines = chunk.split("\n"); - columns = lines[lines.length-1]; - - if (fileInfo) { - if (!mapLines) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column}, - original: { line: sourceLines.length, column: sourceColumns.length}, - source: this.normalizeFilename(fileInfo.filename)}); - } else { - for(i = 0; i < lines.length; i++) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0}, - original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0}, - source: this.normalizeFilename(fileInfo.filename)}); - } - } - } - - if (lines.length === 1) { - this._column += columns.length; - } else { - this._lineNumber += lines.length - 1; - this._column = columns.length; - } - - this._css.push(chunk); - }; - - tree.sourceMapOutput.prototype.isEmpty = function() { - return this._css.length === 0; - }; - - tree.sourceMapOutput.prototype.toCSS = function(env) { - this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null }); - - if (this._outputSourceFiles) { - for(var filename in this._contentsMap) { - this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), this._contentsMap[filename]); - } - } - - this._rootNode.genCSS(env, this); - - if (this._css.length > 0) { - var sourceMapFilename, - sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); - - if (this._sourceMapFilename) { - sourceMapFilename = this.normalizeFilename(this._sourceMapFilename); - } - - if (this._writeSourceMap) { - this._writeSourceMap(sourceMapContent); - } else { - sourceMapFilename = "data:application/json," + encodeURIComponent(sourceMapContent); - } - - if (sourceMapFilename) { - this._css.push("/*# sourceMappingURL=" + sourceMapFilename + " */"); - } - } - - return this._css.join(''); - }; - -})(require('./tree')); - -// -// browser.js - client-side engine -// -/*global less, window, document, XMLHttpRequest, location */ - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - location.port.length > 0 || - isFileProtocol ? 'development' - : 'production'); - -var logLevel = { - info: 2, - errors: 1, - none: 0 -}; - -// The amount of logging in the javascript console. -// 2 - Information and errors -// 1 - Errors -// 0 - None -// Defaults to 2 -less.logLevel = typeof(less.logLevel) != 'undefined' ? less.logLevel : logLevel.info; - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - less.tree.functions[func] = less.functions[func]; - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -var typePattern = /^text\/(x-)?less$/; -var cache = null; -var fileCache = {}; - -function log(str, level) { - if (less.env == 'development' && typeof(console) !== 'undefined' && less.logLevel >= level) { - console.log('less: ' + str); - } -} - -function extractId(href) { - return href.replace(/^[a-z-]+:\/+?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function errorConsole(e, rootHref) { - var template = '{line} {content}'; - var filename = e.filename || rootHref; - var errors = []; - var content = (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - " in " + filename + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n' + - errors.join('\n'); - } else if (e.stack) { - content += e.stack; - } - log(content, logLevel.errors); -} - -function createCSS(styles, sheet, lastModified) { - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If this has already been inserted into the DOM, we may need to replace it - var oldCss = document.getElementById(id); - var keepOldCss = false; - - // Create a new stylesheet node for insertion or (if necessary) replacement - var css = document.createElement('style'); - css.setAttribute('type', 'text/css'); - if (sheet.media) { - css.setAttribute('media', sheet.media); - } - css.id = id; - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - css.appendChild(document.createTextNode(styles)); - - // If new contents match contents of oldCss, don't replace oldCss - keepOldCss = (oldCss !== null && oldCss.childNodes.length > 0 && css.childNodes.length > 0 && - oldCss.firstChild.nodeValue === css.firstChild.nodeValue); - } - - var head = document.getElementsByTagName('head')[0]; - - // If there is no oldCss, just append; otherwise, only append if we need - // to replace oldCss with an updated stylesheet - if (oldCss === null || keepOldCss === false) { - var nextEl = sheet && sheet.nextSibling || null; - if (nextEl) { - nextEl.parentNode.insertBefore(css, nextEl); - } else { - head.appendChild(css); - } - } - if (oldCss && keepOldCss === false) { - oldCss.parentNode.removeChild(oldCss); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.', logLevel.info); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save', logLevel.errors); - } - } -} - -function errorHTML(e, rootHref) { - var id = 'less-error-message:' + extractId(rootHref || ""); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, errors = []; - var filename = e.filename || rootHref; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - '

    ' + '

    in ' + filenameNoPath + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - '
      ' + errors.join('') + '
    '; - } else if (e.stack) { - content += '
    ' + e.stack.split('\n').slice(1).join('
    '); - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #dd6666;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.line {', - 'color: #ff0000;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); - - if (less.env == 'development') { - timer = setInterval(function () { - if (document.body) { - if (document.getElementById(id)) { - document.body.replaceChild(elem, document.getElementById(id)); - } else { - document.body.insertBefore(elem, document.body.firstChild); - } - clearInterval(timer); - } - }, 10); - } -} - -function error(e, rootHref) { - if (!less.errorReporting || less.errorReporting === "html") { - errorHTML(e, rootHref); - } else if (less.errorReporting === "console") { - errorConsole(e, rootHref); - } else if (typeof less.errorReporting === 'function') { - less.errorReporting("add", e, rootHref); - } -} - -function removeErrorHTML(path) { - var node = document.getElementById('less-error-message:' + extractId(path)); - if (node) { - node.parentNode.removeChild(node); - } -} - -function removeErrorConsole(path) { - //no action -} - -function removeError(path) { - if (!less.errorReporting || less.errorReporting === "html") { - removeErrorHTML(path); - } else if (less.errorReporting === "console") { - removeErrorConsole(path); - } else if (typeof less.errorReporting === 'function') { - less.errorReporting("remove", path); - } -} - -function loadStyles(newVars) { - var styles = document.getElementsByTagName('style'), - style; - for (var i = 0; i < styles.length; i++) { - style = styles[i]; - if (style.type.match(typePattern)) { - var env = new less.tree.parseEnv(less), - lessText = style.innerHTML || ''; - env.filename = document.location.href.replace(/#.*$/, ''); - if (newVars) { - env.useFileCache = true; - lessText += "\n" + newVars; - } - - /*jshint loopfunc:true */ - // use closure to store current value of i - var callback = (function(style) { - return function (e, cssAST) { - if (e) { - return error(e, "inline"); - } - var css = cssAST.toCSS(less); - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }; - })(style); - new(less.Parser)(env).parse(lessText, callback); - } - } -} - -function extractUrlParts(url, baseUrl) { - // urlParts[1] = protocol&hostname || / - // urlParts[2] = / if path relative to host base - // urlParts[3] = directories - // urlParts[4] = filename - // urlParts[5] = parameters - - var urlPartsRegex = /^((?:[a-z-]+:)?\/+?(?:[^\/\?#]*\/)|([\/\\]))?((?:[^\/\\\?#]*[\/\\])*)([^\/\\\?#]*)([#\?].*)?$/i, - urlParts = url.match(urlPartsRegex), - returner = {}, directories = [], i, baseUrlParts; 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c=255-(255-a.rgb[0])*(255-b.rgb[0])/255,d=255-(255-a.rgb[1])*(255-b.rgb[1])/255,e=255-(255-a.rgb[2])*(255-b.rgb[2])/255;return this.rgb(c,d,e)},overlay:function(a,b){var c=a.rgb[0]<128?2*a.rgb[0]*b.rgb[0]/255:255-2*(255-a.rgb[0])*(255-b.rgb[0])/255,d=a.rgb[1]<128?2*a.rgb[1]*b.rgb[1]/255:255-2*(255-a.rgb[1])*(255-b.rgb[1])/255,e=a.rgb[2]<128?2*a.rgb[2]*b.rgb[2]/255:255-2*(255-a.rgb[2])*(255-b.rgb[2])/255;return this.rgb(c,d,e)},softlight:function(a,b){var c=b.rgb[0]*a.rgb[0]/255,d=c+a.rgb[0]*(255-(255-a.rgb[0])*(255-b.rgb[0])/255-c)/255;c=b.rgb[1]*a.rgb[1]/255;var e=c+a.rgb[1]*(255-(255-a.rgb[1])*(255-b.rgb[1])/255-c)/255;c=b.rgb[2]*a.rgb[2]/255;var f=c+a.rgb[2]*(255-(255-a.rgb[2])*(255-b.rgb[2])/255-c)/255;return this.rgb(d,e,f)},hardlight:function(a,b){var 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This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser, - rootFilename = env && env.filename; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed around by reference. - if (!(env instanceof tree.parseEnv)) { - env = new tree.parseEnv(env); - } - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, currentFileInfo, importOptions, callback) { - var parserImports = this; - this.queue.push(path); - - var fileParsedFunc = function (e, root, fullPath) { - parserImports.queue.splice(parserImports.queue.indexOf(path), 1); // Remove the path from the queue - - var importedPreviously = fullPath in parserImports.files || fullPath === rootFilename; - - parserImports.files[fullPath] = root; // Store the root - - if (e && !parserImports.error) { parserImports.error = e; } - - callback(e, root, importedPreviously, fullPath); - }; - - if (less.Parser.importer) { - less.Parser.importer(path, currentFileInfo, fileParsedFunc, env); - } else { - less.Parser.fileLoader(path, currentFileInfo, function(e, contents, fullPath, newFileInfo) { - if (e) {fileParsedFunc(e); return;} - - var newEnv = new tree.parseEnv(env); - - newEnv.currentFileInfo = newFileInfo; - newEnv.processImports = false; - newEnv.contents[fullPath] = contents; - - if (currentFileInfo.reference || importOptions.reference) { - newFileInfo.reference = true; - } - - if (importOptions.inline) { - fileParsedFunc(null, contents, fullPath); - } else { - new(less.Parser)(newEnv).parse(contents, function (e, root) { - fileParsedFunc(e, root, fullPath); - }); - } - }, env); - } - } - }; - - function save() { temp = chunks[j], memo = i, current = i; } - function restore() { chunks[j] = temp, i = memo, current = i; } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - function isWhitespace(c) { - // Could change to \s? - var code = c.charCodeAt(0); - return code === 32 || code === 10 || code === 9; - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, length; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - endIndex = i + chunks[j].length, - mem = i += length; - - while (i < endIndex) { - if (! isWhitespace(input.charAt(i))) { break; } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++; } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - return tok.test(chunks[j]); - } - } - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, inputStream) { - var n = index + 1, - line = null, - column = -1; - - while (--n >= 0 && inputStream.charAt(n) !== '\n') { - column++; - } - - if (typeof index === 'number') { - line = (inputStream.slice(0, index).match(/\n/g) || "").length; - } - - return { - line: line, - column: column - }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - callLine = e.call && getLocation(e.call, input).line, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = callLine + 1; - this.callExtract = lines[callLine]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, line, lines, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - parser.imports.contents[env.currentFileInfo.filename] = input; - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length;) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - } - } - - switch (c) { - case '{': - if (!inParam) { - level++; - chunk.push(c); - break; - } - /* falls through */ - case '}': - if (!inParam) { - level--; - chunk.push(c); - chunks[++j] = chunk = []; - break; - } - /* falls through */ - case '(': - if (!inParam) { - inParam = true; - chunk.push(c); - break; - } - /* falls through */ - case ')': - if (inParam) { - inParam = false; - chunk.push(c); - break; - } - /* falls through */ - default: - chunk.push(c); - } - - i++; - } - if (level !== 0) { - error = new(LessError)({ - index: i-1, - type: 'Parse', - message: (level > 0) ? "missing closing `}`" : "missing opening `{`", - filename: env.currentFileInfo.filename - }, env); - } - - return chunks.map(function (c) { return c.join(''); }); - })([[]]); - - if (error) { - return callback(new(LessError)(error, env)); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - return function (options, variables) { - options = options || {}; - var evaldRoot, - css, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, null, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - evaldRoot = evaluate.call(this, evalEnv); - - new(tree.joinSelectorVisitor)() - .run(evaldRoot); - - new(tree.processExtendsVisitor)() - .run(evaldRoot); - - new(tree.toCSSVisitor)({compress: Boolean(options.compress)}) - .run(evaldRoot); - - if (options.sourceMap) { - evaldRoot = new tree.sourceMapOutput( - { - writeSourceMap: options.writeSourceMap, - rootNode: evaldRoot, - contentsMap: parser.imports.contents, - sourceMapFilename: options.sourceMapFilename, - sourceMapURL: options.sourceMapURL, - outputFilename: options.sourceMapOutputFilename, - sourceMapBasepath: options.sourceMapBasepath, - sourceMapRootpath: options.sourceMapRootpath, - outputSourceFiles: options.outputSourceFiles, - sourceMapGenerator: options.sourceMapGenerator - }); - } - - css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits)}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.cleancss && less.mode === 'node') { - var CleanCSS = require('clean-css'); - //TODO would be nice for no advanced to be an option - return new CleanCSS({keepSpecialComments: '*', processImport: false, noRebase: true, noAdvanced: true}).minify(css); - } else if (options.compress) { - return css.replace(/(^(\s)+)|((\s)+$)/g, ""); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - var loc = getLocation(i, input); - lines = input.split('\n'); - line = loc.line + 1; - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: loc.column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - return callback(e); - } - else { - return callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - return finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.extendRule) || $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/) || $(/^;+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') { return; } - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true, i, env.currentFileInfo); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment, false, i, env.currentFileInfo); - } - }, - - comments: function () { - var comment, comments = []; - - while(comment = $(this.comment)) { - comments.push(comment); - } - - return comments; - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++, e = true; } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; } - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - var color = tree.Color.fromKeyword(k); - if (color) { - return color; - } - return new(tree.Keyword)(k); - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) { return; } - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null; } - else { i += name.length; } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { - break; - } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted) || - $(this.entities.unicodeDescriptor); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) { - return; - } - - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - /*jshint eqnull:true */ - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) { - return; - } - - if (value = $(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - if (ud = $(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/)) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '`') { return; } - if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) { - error("You are using JavaScript, which has been disabled."); - } - - if (e) { $('~'); } - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1]; } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList = []; - - if (!$(isRule ? /^&:extend\(/ : /^:extend\(/)) { return; } - - do { - option = null; - elements = []; - while (true) { - option = $(/^(all)(?=\s*(\)|,))/); - if (option) { break; } - e = $(this.element); - if (!e) { break; } - elements.push(e); - } - - option = option && option[1]; - - extendList.push(new(tree.Extend)(new(tree.Selector)(elements), option, index)); - - } while($(",")); - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i), important = false; - - if (s !== '.' && s !== '#') { return; } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i, env.currentFileInfo)); - c = $('>'); - } - if ($('(')) { - args = this.mixin.args.call(this, true).args; - expect(')'); - } - - args = args || []; - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - - restore(); - }, - args: function (isCall) { - var expressions = [], argsSemiColon = [], isSemiColonSeperated, argsComma = [], expressionContainsNamed, name, nameLoop, value, arg, - returner = {args:null, variadic: false}; - while (true) { - if (isCall) { - arg = $(this.expression); - } else { - $(this.comments); - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value.length == 1) { - val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(this.expression); - nameLoop = (name = val.name); - } else if (!isCall && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($(',')) { - continue; - } - - if ($(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) { - return; - } - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - var argInfo = this.mixin.args.call(this, false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - $(this.comments); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) ||$(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) { return; } - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^()@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(')) { - if ((v = ($(this.selector))) && - $(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, i, env.currentFileInfo); } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|') { - i++; - while (input.charAt(i).match(/\s/)) { i++; } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - // - // A CSS selector (see selector below) - // with less extensions e.g. the ability to extend and guard - // - lessSelector: function () { - return this.selector(true); - }, - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function (isLess) { - var e, elements = [], c, extend, extendList = [], when, condition; - - while ((isLess && (extend = $(this.extend))) || (isLess && (when = $(/^when/))) || (e = $(this.element))) { - if (when) { - condition = expect(this.conditions, 'expected condition'); - } else if (condition) { - error("CSS guard can only be used at the end of selector"); - } else if (extend) { - extendList.push.apply(extendList, extend); - } else { - if (extendList.length) { - error("Extend can only be used at the end of selector"); - } - c = input.charAt(i); - elements.push(e); - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { - break; - } - } - - if (elements.length > 0) { return new(tree.Selector)(elements, extendList, condition, i, env.currentFileInfo); } - if (extendList.length) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - var key, val, op; - - if (! $('[')) { return; } - - if (!(key = $(this.entities.variableCurly))) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - if ((op = $(/^[|~*$^]?=/))) { - val = $(this.entities.quoted) || $(/^[0-9]+%/) || $(/^[\w-]+/) || $(this.entities.variableCurly); - } - - expect(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - while (s = $(this.lessSelector)) { - selectors.push(s); - $(this.comments); - if (! $(',')) { break; } - if (s.condition) { - error("Guards are only currently allowed on a single selector."); - } - $(this.comments); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) { - ruleset.debugInfo = debugInfo; - } - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, c = input.charAt(i), important, merge = false; - save(); - - if (c === '.' || c === '#' || c === '&') { return; } - - if (name = $(this.variable) || $(this.ruleProperty)) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || (name.charAt(0) === '@')) ? - ($(this.value) || $(this.anonymousValue)) : - ($(this.anonymousValue) || $(this.value)); - - - important = $(this.important); - if (name[name.length-1] === "+") { - merge = true; - name = name.substr(0, name.length - 1); - } - - if (value && $(this.end)) { - return new (tree.Rule)(name, value, important, merge, memo, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } - }, - anonymousValue: function () { - var match; - if (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j])) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import?\s+/); - - var options = (dir ? $(this.importOptions) : null) || {}; - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $('(')) { return null; } - do { - if (o = $(this.importOption)) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $(',')) { break; } - } - } while (o); - expect(')'); - return options; - }, - - importOption: function() { - var opt = $(/^(less|css|multiple|once|inline|reference)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = ($(this.entities.keyword) || $(this.entities.variable))) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.value); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null; } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break; } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break; } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - media.debugInfo = debugInfo; - } - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression, identifier; - - if (input.charAt(i) !== '@') { return; } - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - if (!name) { return; } - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@host": - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - identifier = ($(/^[^{]+/) || '').trim(); - if (identifier) { - name += " " + identifier; - } - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules, i, env.currentFileInfo); - } - } else { - if ((value = hasExpression ? $(this.expression) : $(this.entity)) && $(';')) { - var directive = new(tree.Directive)(name, value, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = []; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break; } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($('(')) { - if (a = $(this.addition)) { - e = new(tree.Expression)([a]); - expect(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced; - if (m = $(this.operand)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while (!peek(/^\/[*\/]/) && (op = ($('/') || $('*')))) { - if (a = $(this.operand)) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } else { - break; - } - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - if (m = $(this.multiplication)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while ((op = $(/^[-+]\s+/) || (!isSpaced && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while (peek(/^,\s*(not\s*)?\(/) && $(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true; } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|<=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-'); } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = []; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/) && (delim = $('/'))) { - entities.push(new(tree.Anonymous)(delim)); - } - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/)) { - return name[1]; - } - }, - ruleProperty: function () { - var name; - - if (name = $(/^(\*?-?[_a-zA-Z0-9-]+)\s*(\+?)\s*:/)) { - return name[1] + (name[2] || ""); - } - } - } - }; -}; - - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 256); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; } - else if (h * 2 < 1) { return m2; } - else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; } - else { return m1; } - } - - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - // filter: saturate(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if ((color.luma() * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - /*jshint loopfunc:true */ - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - if(!(val instanceof tree.Dimension)) { - throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") }; - } - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return this._math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _math: function (fn, unit, n) { - if (n instanceof tree.Dimension) { - /*jshint eqnull:true */ - return new(tree.Dimension)(fn(parseFloat(n.value)), unit == null ? n.unit : unit); - } else if (typeof(n) === 'number') { - return fn(n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - _minmax: function (isMin, args) { - args = Array.prototype.slice.call(args); - switch(args.length) { - case 0: throw { type: "Argument", message: "one or more arguments required" }; - case 1: return args[0]; - } - var i, j, current, currentUnified, referenceUnified, unit, - order = [], // elems only contains original argument values. - values = {}; // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - for (i = 0; i < args.length; i++) { - current = args[i]; - if (!(current instanceof tree.Dimension)) { - order.push(current); - continue; - } - currentUnified = current.unify(); - unit = currentUnified.unit.toString(); - j = values[unit]; - if (j === undefined) { - values[unit] = order.length; - order.push(current); - continue; - } - referenceUnified = order[j].unify(); - if ( isMin && currentUnified.value < referenceUnified.value || - !isMin && currentUnified.value > referenceUnified.value) { - order[j] = current; - } - } - if (order.length == 1) { - return order[0]; - } - args = order.map(function (a) { return a.toCSS(this.env); }) - .join(this.env.compress ? "," : ", "); - return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")"); - }, - min: function () { - return this._minmax(true, arguments); - }, - max: function () { - return this._minmax(false, arguments); - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - var colorCandidate = n.value, - returnColor; - returnColor = tree.Color.fromKeyword(colorCandidate); - if (returnColor) { - return returnColor; - } - if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) { - return new(tree.Color)(colorCandidate.slice(1)); - } - throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" }; - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - - /* Blending modes */ - - multiply: function(color1, color2) { - var r = color1.rgb[0] * color2.rgb[0] / 255; - var g = color1.rgb[1] * color2.rgb[1] / 255; - var b = color1.rgb[2] * color2.rgb[2] / 255; - return this.rgb(r, g, b); - }, - screen: function(color1, color2) { - var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - overlay: function(color1, color2) { - var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - softlight: function(color1, color2) { - var t = color2.rgb[0] * color1.rgb[0] / 255; - var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255; - t = color2.rgb[1] * color1.rgb[1] / 255; - var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255; - t = color2.rgb[2] * color1.rgb[2] / 255; - var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255; - return this.rgb(r, g, b); - }, - hardlight: function(color1, color2) { - var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255; - var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255; - var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - difference: function(color1, color2) { - var r = Math.abs(color1.rgb[0] - color2.rgb[0]); - var g = Math.abs(color1.rgb[1] - color2.rgb[1]); - var b = Math.abs(color1.rgb[2] - color2.rgb[2]); - return this.rgb(r, g, b); - }, - exclusion: function(color1, color2) { - var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255; - var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255; - var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - average: function(color1, color2) { - var r = (color1.rgb[0] + color2.rgb[0]) / 2; - var g = (color1.rgb[1] + color2.rgb[1]) / 2; - var b = (color1.rgb[2] + color2.rgb[2]) / 2; - return this.rgb(r, g, b); - }, - negation: function(color1, color2) { - var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]); - var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]); - var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]); - return this.rgb(r, g, b); - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - return Array.isArray(values.value) - ? values.value[index] : Array(values)[index]; - }, - length: function(values) { - var n = Array.isArray(values.value) ? values.value.length : 1; - return new tree.Dimension(n); - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require("fs"), - path = require("path"), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) { mimetype += ';base64'; } - } - else { - useBase64 = /;base64$/.test(mimetype); - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "'data:" + mimetype + ',' + buf + "'"; - return new(tree.URL)(new(tree.Anonymous)(uri)); - }, - - "svg-gradient": function(direction) { - - function throwArgumentDescriptor() { - throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" }; - } - - if (arguments.length < 3) { - throwArgumentDescriptor(); - } - var stops = Array.prototype.slice.call(arguments, 1), - gradientDirectionSvg, - gradientType = "linear", - rectangleDimension = 'x="0" y="0" width="1" height="1"', - useBase64 = true, - renderEnv = {compress: false}, - returner, - directionValue = direction.toCSS(renderEnv), - i, color, position, positionValue, alpha; - - switch (directionValue) { - case "to bottom": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - gradientType = "radial"; - gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" }; - } - returner = '' + - '' + - '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>'; - - for (i = 0; i < stops.length; i+= 1) { - if (stops[i].value) { - color = stops[i].value[0]; - position = stops[i].value[1]; - } else { - color = stops[i]; - position = undefined; - } - - if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) { - throwArgumentDescriptor(); - } - positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%"; - alpha = color.alpha; - returner += ''; - } - returner += '' + - ''; - - if (useBase64) { - // only works in node, needs interface to what is supported in environment - try { - returner = new Buffer(returner).toString('base64'); - } catch(e) { - useBase64 = false; - } - } - - returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'"; - return new(tree.URL)(new(tree.Anonymous)(returner)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -var mathFunctions = [{name:"ceil"}, {name:"floor"}, {name: "sqrt"}, {name:"abs"}, - {name:"tan", unit: ""}, {name:"sin", unit: ""}, {name:"cos", unit: ""}, - {name:"atan", unit: "rad"}, {name:"asin", unit: "rad"}, {name:"acos", unit: "rad"}], - createMathFunction = function(name, unit) { - return function(n) { - /*jshint eqnull:true */ - if (unit != null) { - n = n.unify(); - } - return this._math(Math[name], unit, n); - }; - }; - -for(var i = 0; i < mathFunctions.length; i++) { - tree.functions[mathFunctions[i].name] = createMathFunction(mathFunctions[i].name, mathFunctions[i].unit); -} - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); - -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); - -(function (tree) { - -tree.debugInfo = function(env, ctx, lineSeperator) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:/\\])/g, function (a) { - if (a == '\\') { - a = '\/'; - } - return '\\' + a; - }) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r; } - } - return null; -}; - -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false); }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -tree.toCSS = function (env) { - var strs = []; - this.genCSS(env, { - add: function(chunk, fileInfo, index) { - strs.push(chunk); - }, - isEmpty: function () { - return strs.length === 0; - } - }); - return strs.join(''); -}; - -tree.outputRuleset = function (env, output, rules) { - output.add((env.compress ? '{' : ' {\n')); - env.tabLevel = (env.tabLevel || 0) + 1; - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "); - for(var i = 0; i < rules.length; i++) { - output.add(tabRuleStr); - rules[i].genCSS(env, output); - output.add(env.compress ? '' : '\n'); - } - env.tabLevel--; - output.add(tabSetStr + "}"); -}; - -})(require('./tree')); - -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } - return this; - }, - genCSS: function (env, output) { - output.add("alpha(opacity="); - - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - - output.add(")"); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Anonymous = function (string, index, currentFileInfo, mapLines) { - this.value = string.value || string; - this.index = index; - this.mapLines = mapLines; - this.currentFileInfo = currentFileInfo; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - eval: function () { return this; }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - }, - genCSS: function (env, output) { - output.add(this.value, this.currentFileInfo, this.index, this.mapLines); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - }, - genCSS: function (env, output) { - output.add(this.key + '='); - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - this.args = visitor.visit(this.args); - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - /*jshint eqnull:true */ - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - return new tree.Call(this.name, args, this.index, this.currentFileInfo); - }, - - genCSS: function (env, output) { - output.add(this.name + "(", this.currentFileInfo, this.index); - - for(var i = 0; i < this.args.length; i++) { - this.args[i].genCSS(env, output); - if (i + 1 < this.args.length) { - output.add(", "); - } - } - - output.add(")"); - }, - - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; - -var transparentKeyword = "transparent"; - -tree.Color.prototype = { - type: "Color", - eval: function () { return this; }, - luma: function () { return (0.2126 * this.rgb[0] / 255) + (0.7152 * this.rgb[1] / 255) + (0.0722 * this.rgb[2] / 255); }, - - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress; - - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - if (this.alpha < 1.0) { - if (this.alpha === 0 && this.isTransparentKeyword) { - return transparentKeyword; - } - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.toRGB(); - - if (compress) { - var splitcolor = color.split(''); - - // Convert color to short format - if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) { - color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5]; - } - } - - return color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toRGB: function () { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - -tree.Color.fromKeyword = function(keyword) { - if (tree.colors.hasOwnProperty(keyword)) { - // detect named color - return new(tree.Color)(tree.colors[keyword].slice(1)); - } - if (keyword === transparentKeyword) { - var transparent = new(tree.Color)([0, 0, 0], 0); - transparent.isTransparentKeyword = true; - return transparent; - } -}; - - -})(require('../tree')); - -(function (tree) { - -tree.Comment = function (value, silent, index, currentFileInfo) { - this.value = value; - this.silent = !!silent; - this.currentFileInfo = currentFileInfo; -}; -tree.Comment.prototype = { - type: "Comment", - genCSS: function (env, output) { - if (this.debugInfo) { - output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index); - } - output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n - }, - toCSS: tree.toCSS, - isSilent: function(env) { - var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced), - isCompressed = env.compress && !this.value.match(/^\/\*!/); - return this.silent || isReference || isCompressed; - }, - eval: function () { return this; }, - markReferenced: function () { - this.isReferenced = true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<' || op === '<='; - case 0: return op === '=' || op === '>=' || op === '=<' || op === '<='; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); - -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - genCSS: function (env, output) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = this.value, - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && this.unit.isLength()) { - output.add(strValue); - return; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - output.add(strValue); - this.unit.genCSS(env, output); - }, - toCSS: tree.toCSS, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - /*jshint noempty:false */ - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a = this.unify(), b = other.unify(), - aValue = a.value, bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - if (!b.unit.isEmpty() && a.unit.compare(b.unit) !== 0) { - return -1; - } - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'm', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, targetUnit, derivedConversions = {}, applyUnit; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - applyUnit = function (atomicUnit, denominator) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(applyUnit); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - genCSS: function (env, output) { - if (this.numerator.length >= 1) { - output.add(this.numerator[0]); - } else - if (this.denominator.length >= 1) { - output.add(this.denominator[0]); - } else - if ((!env || !env.strictUnits) && this.backupUnit) { - output.add(this.backupUnit); - } - }, - toCSS: tree.toCSS, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isLength: function () { - return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/)); - }, - - isEmpty: function () { - return this.numerator.length === 0 && this.denominator.length === 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length === 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, result = {}, mapUnit; - - mapUnit = function (atomicUnit) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }; - - for (var groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(mapUnit); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Directive = function (name, value, index, currentFileInfo) { - this.name = name; - - if (Array.isArray(value)) { - this.rules = [new(tree.Ruleset)([], value)]; - this.rules[0].allowImports = true; - } else { - this.value = value; - } - this.currentFileInfo = currentFileInfo; - -}; -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - this.rules = visitor.visit(this.rules); - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name, this.currentFileInfo, this.index); - if (this.rules) { - tree.outputRuleset(env, output, this.rules); - } else { - output.add(' '); - this.value.genCSS(env, output); - output.add(';'); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var evaldDirective = this; - if (this.rules) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name, null, this.index, this.currentFileInfo); - evaldDirective.rules = [this.rules[0].eval(env)]; - evaldDirective.rules[0].root = true; - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - markReferenced: function () { - var i, rules; - this.isReferenced = true; - if (this.rules) { - rules = this.rules[0].rules; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Element = function (combinator, value, index, currentFileInfo) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - this.combinator = visitor.visit(this.combinator); - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index, - this.currentFileInfo); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env), this.currentFileInfo, this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value === '' && this.combinator.value.charAt(0) === '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - _outputMap: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : ' + ', - '~' : ' ~ ', - '>' : ' > ', - '|' : '|' - }, - _outputMapCompressed: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : '+', - '~' : '~', - '>' : '>', - '|' : '|' - }, - genCSS: function (env, output) { - output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - genCSS: function (env, output) { - for(var i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i + 1 < this.value.length) { - output.add(" "); - } - } - }, - toCSS: tree.toCSS, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i, - selectorElements; - - for(i = 0; i < selectors.length; i++) { - selectorElements = selectors[i].elements; - // duplicate the logic in genCSS function inside the selector node. - // future TODO - move both logics into the selector joiner visitor - if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") { - selectorElements[0].combinator.value = ' '; - } - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); - -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined || this.options.inline) { - this.css = !this.options.less || this.options.inline; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.path = visitor.visit(this.path); - if (!this.options.inline) { - this.root = visitor.visit(this.root); - } - }, - genCSS: function (env, output) { - if (this.css) { - output.add("@import ", this.currentFileInfo, this.index); - this.path.genCSS(env, output); - if (this.features) { - output.add(" "); - this.features.genCSS(env, output); - } - output.add(';'); - } - }, - toCSS: tree.toCSS, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - - if (!(path instanceof tree.URL)) { - if (rootpath) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath + pathValue; - } - } - path.value = env.normalizePath(path.value); - } - - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { return []; } - - if (this.options.inline) { - //todo needs to reference css file not import - var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true); - return this.features ? new(tree.Media)([contents], this.features.value) : [contents]; - } else if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - /*jshint loopfunc:true */ - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Keyword = function (value) { this.value = value; }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); - -(function (tree) { - -tree.Media = function (value, features, index, currentFileInfo) { - this.index = index; - this.currentFileInfo = currentFileInfo; - - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.rules = [new(tree.Ruleset)(selectors, value)]; - this.rules[0].allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.rules = visitor.visit(this.rules); - }, - genCSS: function (env, output) { - output.add('@media ', this.currentFileInfo, this.index); - this.features.genCSS(env, output); - tree.outputRuleset(env, output, this.rules); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)([], [], this.index, this.currentFileInfo); - if(this.debugInfo) { - this.rules[0].debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.rules[0]); - media.rules = [this.rules[0].eval(env)]; - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env); - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', this.index, this.currentFileInfo); - return [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)]; - }, - markReferenced: function () { - var i, rules = this.rules[0].rules; - this.isReferenced = true; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])]; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - this.arguments = visitor.visit(this.arguments); - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - if (mixin.matchArgs(args, env)) { - if (!mixin.matchCondition || mixin.matchCondition(args, env)) { - try { - if (!(mixin instanceof tree.mixin.Definition)) { - mixin = new tree.mixin.Definition("", [], mixin.rules, null, false); - mixin.originalRuleset = mixins[m].originalRuleset || mixins[m]; - } - //if (this.important) { - // isImportant = env.isImportant; - // env.isImportant = true; - //} - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - //if (this.important) { - // env.isImportant = isImportant; - //} - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - match = true; - } - } - if (match) { - if (!this.currentFileInfo || !this.currentFileInfo.reference) { - for (i = 0; i < rules.length; i++) { - rule = rules[i]; - if (rule.markReferenced) { - rule.markReferenced(); - } - } - } - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")`", - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1; } - else { return count; } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - this.params = visitor.visit(this.params); - this.rules = visitor.visit(this.rules); - this.condition = visitor.visit(this.condition); - }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - /*jshint boss:true */ - var frame = new(tree.Ruleset)(null, []), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.rules.unshift(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) { continue; } - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.rules.unshift(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - rules, ruleset; - - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules); - ruleset.originalRuleset = this; - ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames))); - if (important) { - ruleset = this.parent.makeImportant.apply(ruleset); - } - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] // the parameter variables - .concat(this.frames) // the parent namespace/mixin frames - .concat(env.frames)))) { // the current environment frames - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (! this.variadic) { - if (argsLength < this.required) { return false; } - if (argsLength > this.params.length) { return false; } - } else { - if (argsLength < (this.required - 1)) { return false; } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('-'); - this.value.genCSS(env, output); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { type: "Operation", - message: "Can't substract or divide a color from a number" }; - } - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - genCSS: function (env, output) { - this.operands[0].genCSS(env, output); - if (this.isSpaced) { - output.add(" "); - } - output.add(this.op); - if (this.isSpaced) { - output.add(" "); - } - this.operands[1].genCSS(env, output); - }, - toCSS: tree.toCSS -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('('); - this.value.genCSS(env, output); - output.add(')'); - }, - toCSS: tree.toCSS, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - genCSS: function (env, output) { - if (!this.escaped) { - output.add(this.quote, this.currentFileInfo, this.index); - } - output.add(this.value); - if (!this.escaped) { - output.add(this.quote); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.merge = merge; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - this.variable = (name.charAt(0) === '@'); -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index); - try { - this.value.genCSS(env, output); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index); - }, - toCSS: tree.toCSS, - eval: function (env) { - var strictMathBypass = false; - if (this.name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - return new(tree.Rule)(this.name, - this.value.eval(env), - this.important, - this.merge, - this.index, this.currentFileInfo, this.inline); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.merge, - this.index, this.currentFileInfo, this.inline); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - if (this.paths) { - for(var i = 0; i < this.paths.length; i++) { - this.paths[i] = visitor.visit(this.paths[i]); - } - } else { - this.selectors = visitor.visit(this.selectors); - } - this.rules = visitor.visit(this.rules); - }, - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env); }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules; - var rule; - var i; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // currrent selectors - if (!env.selectors) { - env.selectors = []; - } - env.selectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - /*jshint loopfunc:true */ - rules = ruleset.rules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - ruleset.rules.splice.apply(ruleset.rules, [i, 1].concat(rules)); - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (i = 0; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - env.selectors.shift(); - - if (env.mediaBlocks) { - for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var i, rules; - for (i = 0; i < this.rules.length; i++) { - if (this.rules[i] instanceof tree.Import) { - rules = this.rules[i].eval(env); - if (typeof rules.length === "number") { - this.rules.splice.apply(this.rules, [i, 1].concat(rules)); - i+= rules.length-1; - } else { - this.rules.splice(i, 1, rules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - matchCondition: function (args, env) { - var lastSelector = this.selectors[this.selectors.length-1]; - if (lastSelector.condition && - !lastSelector.condition.eval( - new(tree.evalEnv)(env, - env.frames))) { - return false; - } - return true; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (this._variables) { return this._variables; } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - return this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - }, - find: function (selector, self) { - self = self || this; - var rules = [], match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key]; } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > match) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(match)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - genCSS: function (env, output) { - var i, j, - ruleNodes = [], - rulesetNodes = [], - debugInfo, // Line number debugging - rule, - firstRuleset = true, - path; - - env.tabLevel = (env.tabLevel || 0); - - if (!this.root) { - env.tabLevel++; - } - - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "); - - for (i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - if (rule.rules || (rule instanceof tree.Media) || rule instanceof tree.Directive || (this.root && rule instanceof tree.Comment)) { - rulesetNodes.push(rule); - } else { - ruleNodes.push(rule); - } - } - - // If this is the root node, we don't render - // a selector, or {}. - if (!this.root) { - debugInfo = tree.debugInfo(env, this, tabSetStr); - - if (debugInfo) { - output.add(debugInfo); - output.add(tabSetStr); - } - - for(i = 0; i < this.paths.length; i++) { - path = this.paths[i]; - env.firstSelector = true; - for(j = 0; j < path.length; j++) { - path[j].genCSS(env, output); - env.firstSelector = false; - } - if (i + 1 < this.paths.length) { - output.add(env.compress ? ',' : (',\n' + tabSetStr)); - } - } - - output.add((env.compress ? '{' : ' {\n') + tabRuleStr); - } - - // Compile rules and rulesets - for (i = 0; i < ruleNodes.length; i++) { - rule = ruleNodes[i]; - - // @page{ directive ends up with root elements inside it, a mix of rules and rulesets - // In this instance we do not know whether it is the last property - if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) { - env.lastRule = true; - } - - if (rule.genCSS) { - rule.genCSS(env, output); - } else if (rule.value) { - output.add(rule.value.toString()); - } - - if (!env.lastRule) { - output.add(env.compress ? '' : ('\n' + tabRuleStr)); - } else { - env.lastRule = false; - } - } - - if (!this.root) { - output.add((env.compress ? '}' : '\n' + tabSetStr + '}')); - env.tabLevel--; - } - - for (i = 0; i < rulesetNodes.length; i++) { - if (ruleNodes.length && firstRuleset) { - output.add((env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr)); - } - if (!firstRuleset) { - output.add((env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr)); - } - firstRuleset = false; - rulesetNodes[i].genCSS(env, output); - } - - if (!output.isEmpty() && !env.compress && this.firstRoot) { - output.add('\n'); - } - }, - - toCSS: tree.toCSS, - - markReferenced: function () { - for (var s = 0; s < this.selectors.length; s++) { - this.selectors[s].markReferenced(); - } - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for (i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for (j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length === 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0, el.index, el.currentFileInfo)); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for (k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = selector.createDerived([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for (i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length === 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for (i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); - -(function (tree) { - -tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) { - this.elements = elements; - this.extendList = extendList || []; - this.condition = condition; - this.currentFileInfo = currentFileInfo || {}; - this.isReferenced = isReferenced; - if (!condition) { - this.evaldCondition = true; - } -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - this.elements = visitor.visit(this.elements); - this.extendList = visitor.visit(this.extendList); - this.condition = visitor.visit(this.condition); - }, - createDerived: function(elements, extendList, evaldCondition) { - /*jshint eqnull:true */ - evaldCondition = evaldCondition != null ? evaldCondition : this.evaldCondition; - var newSelector = new(tree.Selector)(elements, extendList || this.extendList, this.condition, this.index, this.currentFileInfo, this.isReferenced); - newSelector.evaldCondition = evaldCondition; - return newSelector; - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, max, i; - - oelements = other.elements.slice( - (other.elements.length && other.elements[0].value === "&") ? 1 : 0); - olen = oelements.length; - max = Math.min(len, olen); - - if (olen === 0 || len < olen) { - return 0; - } else { - for (i = 0; i < max; i++) { - if (elements[i].value !== oelements[i].value) { - return 0; - } - } - } - return max; // return number of matched selectors - }, - eval: function (env) { - var evaldCondition = this.condition && this.condition.eval(env); - - return this.createDerived(this.elements.map(function (e) { - return e.eval(env); - }), this.extendList.map(function(extend) { - return extend.eval(env); - }), evaldCondition); - }, - genCSS: function (env, output) { - var i, element; - if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") { - output.add(' ', this.currentFileInfo, this.index); - } - if (!this._css) { - //TODO caching? speed comparison? - for(i = 0; i < this.elements.length; i++) { - element = this.elements[i]; - element.genCSS(env, output); - } - } - }, - toCSS: tree.toCSS, - markReferenced: function () { - this.isReferenced = true; - }, - getIsReferenced: function() { - return !this.currentFileInfo.reference || this.isReferenced; - }, - getIsOutput: function() { - return this.evaldCondition; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - eval: function () { return this; } -}; - -})(require('../tree')); - -(function (tree) { - -tree.URL = function (val, currentFileInfo) { - this.value = val; - this.currentFileInfo = currentFileInfo; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add("url("); - this.value.genCSS(env, output); - output.add(")"); - }, - toCSS: tree.toCSS, - eval: function (ctx) { - var val = this.value.eval(ctx), rootpath; - - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - val.value = ctx.normalizePath(val.value); - - return new(tree.URL)(val, null); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - genCSS: function (env, output) { - var i; - for(i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i+1 < this.value.length) { - output.add((env && env.compress) ? ',' : ', '); - } - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { - this.name = name; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') === 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { - this.evaluating = false; - return variable; - } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); - -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // browser-only, contents of all the files - 'relativeUrls', // option - whether to adjust URL's to be relative - 'rootpath', // option - rootpath to append to URL's - 'strictImports', // option - - 'insecure', // option - whether to allow imports from insecure ssl hosts - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true - 'mime', // browser only - mime type for sheet import - 'useFileCache', // browser only - whether to use the per file session cache - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' - absolute path to the entry file - // 'reference' - whether the file should not be output and only output parts that are referenced - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits', // whether units need to evaluate correctly - 'cleancss', // whether to compress with clean-css - 'sourceMap', // whether to output a source map - 'importMultiple'// whether we are currently importing multiple copies - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - tree.evalEnv.prototype.normalizePath = function( path ) { - var - segments = path.split("/").reverse(), - segment; - - path = []; - while (segments.length !== 0 ) { - segment = segments.pop(); - switch( segment ) { - case ".": - break; - case "..": - if ((path.length === 0) || (path[path.length - 1] === "..")) { - path.push( segment ); - } else { - path.pop(); - } - break; - default: - path.push( segment ); - break; - } - } - - return path.join("/"); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.visitor = function(implementation) { - this._implementation = implementation; - }; - - tree.visitor.prototype = { - visit: function(node) { - - if (node instanceof Array) { - return this.visitArray(node); - } - - if (!node || !node.type) { - return node; - } - - var funcName = "visit" + node.type, - func = this._implementation[funcName], - visitArgs, newNode; - if (func) { - visitArgs = {visitDeeper: true}; - newNode = func.call(this._implementation, node, visitArgs); - if (this._implementation.isReplacing) { - node = newNode; - } - } - if ((!visitArgs || visitArgs.visitDeeper) && node && node.accept) { - node.accept(this); - } - funcName = funcName + "Out"; - if (this._implementation[funcName]) { - this._implementation[funcName](node); - } - return node; - }, - visitArray: function(nodes) { - var i, newNodes = []; - for(i = 0; i < nodes.length; i++) { - var evald = this.visit(nodes[i]); - if (evald instanceof Array) { - evald = this.flatten(evald); - newNodes = newNodes.concat(evald); - } else { - newNodes.push(evald); - } - } - if (this._implementation.isReplacing) { - return newNodes; - } - return nodes; - }, - doAccept: function (node) { - node.accept(this); - }, - flatten: function(arr, master) { - return arr.reduce(this.flattenReduce.bind(this), master || []); - }, - flattenReduce: function(sum, element) { - if (element instanceof Array) { - sum = this.flatten(element, sum); - } else { - sum.push(element); - } - return sum; - } - }; - -})(require('./tree')); -(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode, - inlineCSS = importNode.options.inline; - - if (!importNode.css || inlineCSS) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - - if (importNode.options.multiple) { - env.importMultiple = true; - } - - this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, imported, fullPath) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - - if (imported && !env.importMultiple) { importNode.skip = imported; } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - importNode.importedFilename = fullPath; - if (!inlineCSS && !importNode.skip) { - new(tree.importVisitor)(importVisitor._importer, subFinish, env) - .run(root); - return; - } - } - - subFinish(); - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree')); -(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - var paths = []; - this.contexts.push(paths); - - if (! rulesetNode.root) { - rulesetNode.selectors = rulesetNode.selectors.filter(function(selector) { return selector.getIsOutput(); }); - if (rulesetNode.selectors.length === 0) { - rulesetNode.rules.length = 0; - } - rulesetNode.joinSelectors(paths, context, rulesetNode.selectors); - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree')); -(function (tree) { - tree.toCSSVisitor = function(env) { - this._visitor = new tree.visitor(this); - this._env = env; - }; - - tree.toCSSVisitor.prototype = { - isReplacing: true, - run: function (root) { - return this._visitor.visit(root); - }, - - visitRule: function (ruleNode, visitArgs) { - if (ruleNode.variable) { - return []; - } - return ruleNode; - }, - - visitMixinDefinition: function (mixinNode, visitArgs) { - return []; - }, - - visitExtend: function (extendNode, visitArgs) { - return []; - }, - - visitComment: function (commentNode, visitArgs) { - if (commentNode.isSilent(this._env)) { - return []; - } - return commentNode; - }, - - visitMedia: function(mediaNode, visitArgs) { - mediaNode.accept(this._visitor); - visitArgs.visitDeeper = false; - - if (!mediaNode.rules.length) { - return []; - } - return mediaNode; - }, - - visitDirective: function(directiveNode, visitArgs) { - if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) { - return []; - } - if (directiveNode.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (this.charset) { - if (directiveNode.debugInfo) { - var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n"); - comment.debugInfo = directiveNode.debugInfo; - return this._visitor.visit(comment); - } - return []; - } - this.charset = true; - } - return directiveNode; - }, - - checkPropertiesInRoot: function(rules) { - var ruleNode; - for(var i = 0; i < rules.length; i++) { - ruleNode = rules[i]; - if (ruleNode instanceof tree.Rule && !ruleNode.variable) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null}; - } - } - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var rule, rulesets = []; - if (rulesetNode.firstRoot) { - this.checkPropertiesInRoot(rulesetNode.rules); - } - if (! rulesetNode.root) { - - rulesetNode.paths = rulesetNode.paths - .filter(function(p) { - var i; - if (p[0].elements[0].combinator.value === ' ') { - p[0].elements[0].combinator = new(tree.Combinator)(''); - } - for(i = 0; i < p.length; i++) { - if (p[i].getIsReferenced() && p[i].getIsOutput()) { - return true; - } - return false; - } - }); - - // Compile rules and rulesets - for (var i = 0; i < rulesetNode.rules.length; i++) { - rule = rulesetNode.rules[i]; - - if (rule.rules) { - // visit because we are moving them out from being a child - rulesets.push(this._visitor.visit(rule)); - rulesetNode.rules.splice(i, 1); - i--; - continue; - } - } - // accept the visitor to remove rules and refactor itself - // then we can decide now whether we want it or not - if (rulesetNode.rules.length > 0) { - rulesetNode.accept(this._visitor); - } - visitArgs.visitDeeper = false; - - this._mergeRules(rulesetNode.rules); - this._removeDuplicateRules(rulesetNode.rules); - - // now decide whether we keep the ruleset - if (rulesetNode.rules.length > 0 && rulesetNode.paths.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } else { - rulesetNode.accept(this._visitor); - visitArgs.visitDeeper = false; - if (rulesetNode.firstRoot || rulesetNode.rules.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } - if (rulesets.length === 1) { - return rulesets[0]; - } - return rulesets; - }, - - _removeDuplicateRules: function(rules) { - // remove duplicates - var ruleCache = {}, - ruleList, rule, i; - for(i = rules.length - 1; i >= 0 ; i--) { - rule = rules[i]; - if (rule instanceof tree.Rule) { - if (!ruleCache[rule.name]) { - ruleCache[rule.name] = rule; - } else { - ruleList = ruleCache[rule.name]; - if (ruleList instanceof tree.Rule) { - ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)]; - } - var ruleCSS = rule.toCSS(this._env); - if (ruleList.indexOf(ruleCSS) !== -1) { - rules.splice(i, 1); - } else { - ruleList.push(ruleCSS); - } - } - } - } - }, - - _mergeRules: function (rules) { - var groups = {}, - parts, - rule, - key; - - for (var i = 0; i < rules.length; i++) { - rule = rules[i]; - - if ((rule instanceof tree.Rule) && rule.merge) { - key = [rule.name, - rule.important ? "!" : ""].join(","); - - if (!groups[key]) { - parts = groups[key] = []; - } else { - rules.splice(i--, 1); - } - - parts.push(rule); - } - } - - Object.keys(groups).map(function (k) { - parts = groups[k]; - - if (parts.length > 1) { - rule = parts[0]; - - rule.value = new (tree.Value)(parts.map(function (p) { - return p.value; - })); - } - }); - } - }; - -})(require('./tree')); -(function (tree) { - /*jshint loopfunc:true */ - - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - for(i = 0; i < rulesetNode.rules.length; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rulesetNode.rules[i]); - rulesetNode.extendOnEveryPath = true; - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - for(i = 0; i < rulesetNode.paths.length; i++) { - var selectorPath = rulesetNode.paths[i], - selector = selectorPath[selectorPath.length-1]; - extendList = selector.extendList.slice(0).concat(allSelectorsExtendList).map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if (this.inInheritanceChain(targetExtend, extend)) { continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parents = [targetExtend, extend]; - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - inInheritanceChain: function (possibleParent, possibleChild) { - if (possibleParent === possibleChild) { - return true; - } - if (possibleChild.parents) { - if (this.inInheritanceChain(possibleParent, possibleChild.parents[0])) { - return true; - } - if (this.inInheritanceChain(possibleParent, possibleChild.parents[1])) { - return true; - } - } - return false; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (rulesetNode.extendOnEveryPath || selectorPath[selectorPath.length-1].extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator === '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - elementValue1 = elementValue1.value; - elementValue2 = elementValue2.value; - if (elementValue1 instanceof tree.Selector) { - if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) { - return false; - } - for(var i = 0; i currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - newElements = selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)); - - if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) { - path[path.length - 1].elements = - path[path.length - 1].elements.concat(newElements); - } else { - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - newElements - )); - } - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.sourceMapOutput = function (options) { - this._css = []; - this._rootNode = options.rootNode; - this._writeSourceMap = options.writeSourceMap; - this._contentsMap = options.contentsMap; - this._sourceMapFilename = options.sourceMapFilename; - this._outputFilename = options.outputFilename; - this._sourceMapURL = options.sourceMapURL; - this._sourceMapBasepath = options.sourceMapBasepath; - this._sourceMapRootpath = options.sourceMapRootpath; - this._outputSourceFiles = options.outputSourceFiles; - this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator; - - if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') { - this._sourceMapRootpath += '/'; - } - - this._lineNumber = 0; - this._column = 0; - }; - - tree.sourceMapOutput.prototype.normalizeFilename = function(filename) { - if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) { - filename = filename.substring(this._sourceMapBasepath.length); - if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') { - filename = filename.substring(1); - } - } - return (this._sourceMapRootpath || "") + filename.replace(/\\/g, '/'); - }; - - tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) { - - //ignore adding empty strings - if (!chunk) { - return; - } - - var lines, - sourceLines, - columns, - sourceColumns, - i; - - if (fileInfo) { - var inputSource = this._contentsMap[fileInfo.filename].substring(0, index); - sourceLines = inputSource.split("\n"); - sourceColumns = sourceLines[sourceLines.length-1]; - } - - lines = chunk.split("\n"); - columns = lines[lines.length-1]; - - if (fileInfo) { - if (!mapLines) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column}, - original: { line: sourceLines.length, column: sourceColumns.length}, - source: this.normalizeFilename(fileInfo.filename)}); - } else { - for(i = 0; i < lines.length; i++) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0}, - original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0}, - source: this.normalizeFilename(fileInfo.filename)}); - } - } - } - - if (lines.length === 1) { - this._column += columns.length; - } else { - this._lineNumber += lines.length - 1; - this._column = columns.length; - } - - this._css.push(chunk); - }; - - tree.sourceMapOutput.prototype.isEmpty = function() { - return this._css.length === 0; - }; - - tree.sourceMapOutput.prototype.toCSS = function(env) { - this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null }); - - if (this._outputSourceFiles) { - for(var filename in this._contentsMap) { - this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), this._contentsMap[filename]); - } - } - - this._rootNode.genCSS(env, this); - - if (this._css.length > 0) { - var sourceMapURL, - sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); - - if (this._sourceMapURL) { - sourceMapURL = this._sourceMapURL; - } else if (this._sourceMapFilename) { - sourceMapURL = this.normalizeFilename(this._sourceMapFilename); - } - - if (this._writeSourceMap) { - this._writeSourceMap(sourceMapContent); - } else { - sourceMapURL = "data:application/json," + encodeURIComponent(sourceMapContent); - } - - if (sourceMapURL) { - this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */"); - } - } - - return this._css.join(''); - }; - -})(require('./tree')); - -// -// browser.js - client-side engine -// -/*global less, window, document, XMLHttpRequest, location */ - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - (location.port && - location.port.length > 0) || - isFileProtocol ? 'development' - : 'production'); - -var logLevel = { - info: 2, - errors: 1, - none: 0 -}; - -// The amount of logging in the javascript console. -// 2 - Information and errors -// 1 - Errors -// 0 - None -// Defaults to 2 -less.logLevel = typeof(less.logLevel) != 'undefined' ? less.logLevel : logLevel.info; - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - less.tree.functions[func] = less.functions[func]; - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -var typePattern = /^text\/(x-)?less$/; -var cache = null; -var fileCache = {}; -var varsPre = ""; - -function log(str, level) { - if (less.env == 'development' && typeof(console) !== 'undefined' && less.logLevel >= level) { - console.log('less: ' + str); - } -} - -function extractId(href) { - return href.replace(/^[a-z-]+:\/+?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function errorConsole(e, rootHref) { - var template = '{line} {content}'; - var filename = e.filename || rootHref; - var errors = []; - var content = (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - " in " + filename + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n' + - errors.join('\n'); - } else if (e.stack) { - content += e.stack; - } - log(content, logLevel.errors); -} - -function createCSS(styles, sheet, lastModified) { - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If this has already been inserted into the DOM, we may need to replace it - var oldCss = document.getElementById(id); - var keepOldCss = false; - - // Create a new stylesheet node for insertion or (if necessary) replacement - var css = document.createElement('style'); - css.setAttribute('type', 'text/css'); - if (sheet.media) { - css.setAttribute('media', sheet.media); - } - css.id = id; - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - css.appendChild(document.createTextNode(styles)); - - // If new contents match contents of oldCss, don't replace oldCss - keepOldCss = (oldCss !== null && oldCss.childNodes.length > 0 && css.childNodes.length > 0 && - oldCss.firstChild.nodeValue === css.firstChild.nodeValue); - } - - var head = document.getElementsByTagName('head')[0]; - - // If there is no oldCss, just append; otherwise, only append if we need - // to replace oldCss with an updated stylesheet - if (oldCss === null || keepOldCss === false) { - var nextEl = sheet && sheet.nextSibling || null; - if (nextEl) { - nextEl.parentNode.insertBefore(css, nextEl); - } else { - head.appendChild(css); - } - } - if (oldCss && keepOldCss === false) { - oldCss.parentNode.removeChild(oldCss); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.', logLevel.info); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save', logLevel.errors); - } - } -} - -function errorHTML(e, rootHref) { - var id = 'less-error-message:' + extractId(rootHref || ""); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, errors = []; - var filename = e.filename || rootHref; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - '

    ' + '

    in ' + filenameNoPath + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - '
      ' + errors.join('') + '
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-}; - - -if (typeof(window.less) === 'undefined' || typeof(window.less.nodeType) !== 'undefined') { window.less = {}; } -less = window.less; -tree = window.less.tree = {}; -less.mode = 'browser'; - -var less, tree; - -// Node.js does not have a header file added which defines less -if (less === undefined) { - less = exports; - tree = require('./tree'); - less.mode = 'node'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `currentPos` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // current chunk - currentPos, // index of current chunk, in `input` - parser, - parsers, - rootFilename = env && env.filename; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed around by reference. - if (!(env instanceof tree.parseEnv)) { - env = new tree.parseEnv(env); - } - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - contentsIgnoredChars: env.contentsIgnoredChars, // lines inserted, not in the original less - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, currentFileInfo, importOptions, callback) { - var parserImports = this; - this.queue.push(path); - - var fileParsedFunc = function (e, root, fullPath) { - parserImports.queue.splice(parserImports.queue.indexOf(path), 1); // Remove the path from the queue - - var importedPreviously = fullPath in parserImports.files || fullPath === rootFilename; - - parserImports.files[fullPath] = root; // Store the root - - if (e && !parserImports.error) { parserImports.error = e; } - - callback(e, root, importedPreviously, fullPath); - }; - - if (less.Parser.importer) { - less.Parser.importer(path, currentFileInfo, fileParsedFunc, env); - } else { - less.Parser.fileLoader(path, currentFileInfo, function(e, contents, fullPath, newFileInfo) { - if (e) {fileParsedFunc(e); return;} - - var newEnv = new tree.parseEnv(env); - - newEnv.currentFileInfo = newFileInfo; - newEnv.processImports = false; - newEnv.contents[fullPath] = contents; - - if (currentFileInfo.reference || importOptions.reference) { - newFileInfo.reference = true; - } - - if (importOptions.inline) { - fileParsedFunc(null, contents, fullPath); - } else { - new(less.Parser)(newEnv).parse(contents, function (e, root) { - fileParsedFunc(e, root, fullPath); - }); - } - }, env); - } - } - }; - - function save() { temp = current; memo = currentPos = i; } - function restore() { current = temp; currentPos = i = memo; } - - function sync() { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - } - function isWhitespace(str, pos) { - var code = str.charCodeAt(pos | 0); - return (code <= 32) && (code === 32 || code === 10 || code === 9); - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var tokType = typeof tok, - match, length; - - // Either match a single character in the input, - // or match a regexp in the current chunk (`current`). - // - if (tokType === "string") { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - // regexp - sync (); - if (! (match = tok.exec(current))) { - return null; - } - - length = match[0].length; - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - - // Specialization of $(tok) - function $re(tok) { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - var m = tok.exec(current); - if (!m) { - return null; - } - - skipWhitespace(m[0].length); - if(typeof m === "string") { - return m; - } - - return m.length === 1 ? m[0] : m; - } - - var _$re = $re; - - // Specialization of $(tok) - function $char(tok) { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - curr = i - currentPos, - endIndex = i + current.length - curr, - mem = (i += length), - inp = input, - c; - - for (; i < endIndex; i++) { - c = inp.charCodeAt(i); - if (c > 32) { - break; - } - - if ((c !== 32) && (c !== 10) && (c !== 9) && (c !== 13)) { - break; - } - } - - current = current.slice(length + i - mem + curr); - currentPos = i; - - if (!current.length && (j < chunks.length - 1)) { - current = chunks[++j]; - } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - var result = (typeof arg === "function") ? arg.call(parsers) : $(arg); - if (result) { - return result; - } - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } - - // Specialization of expect() - function expectChar(arg, msg) { - if (input.charAt(i) === arg) { - skipWhitespace(1); - return arg; - } - error(msg || "expected '" + arg + "' got '" + input.charAt(i) + "'"); - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - return tok.test(current); - } - } - - // Specialization of peek() - function peekChar(tok) { - return input.charAt(i) === tok; - } - - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, inputStream) { - var n = index + 1, - line = null, - column = -1; - - while (--n >= 0 && inputStream.charAt(n) !== '\n') { - column++; - } - - if (typeof index === 'number') { - line = (inputStream.slice(0, index).match(/\n/g) || "").length; - } - - return { - line: line, - column: column - }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - callLine = e.call && getLocation(e.call, input).line, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = callLine + 1; - this.callExtract = lines[callLine]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // @param str A string containing 'less' markup - // @param callback call `callback` when done. - // @param [additionalData] An optional map which can contains vars - a map (key, value) of variables to apply - // - parse: function (str, callback, additionalData) { - var root, line, lines, error = null, globalVars, modifyVars, preText = ""; - - i = j = currentPos = furthest = 0; - - globalVars = (additionalData && additionalData.globalVars) ? less.Parser.serializeVars(additionalData.globalVars) + '\n' : ''; - modifyVars = (additionalData && additionalData.modifyVars) ? '\n' + less.Parser.serializeVars(additionalData.modifyVars) : ''; - - if (globalVars || (additionalData && additionalData.banner)) { - preText = ((additionalData && additionalData.banner) ? additionalData.banner : "") + globalVars; - parser.imports.contentsIgnoredChars[env.currentFileInfo.filename] = preText.length; - } - - str = str.replace(/\r\n/g, '\n'); - // Remove potential UTF Byte Order Mark - input = str = preText + str.replace(/^\uFEFF/, '') + modifyVars; - parser.imports.contents[env.currentFileInfo.filename] = str; - - // Split the input into chunks. - chunks = (function (input) { - var len = input.length, level = 0, parenLevel = 0, - lastOpening, lastClosing, lastMultiComment, lastMultiCommentEndBrace, - chunks = [], emitFrom = 0, - parserCurrentIndex, currentChunkStartIndex, cc, cc2, matched; - - function fail(msg, index) { - error = new(LessError)({ - index: index || parserCurrentIndex, - type: 'Parse', - message: msg, - filename: env.currentFileInfo.filename - }, env); - } - - function emitChunk(force) { - var len = parserCurrentIndex - emitFrom; - if (((len < 512) && !force) || !len) { - return; - } - chunks.push(input.slice(emitFrom, parserCurrentIndex + 1)); - emitFrom = parserCurrentIndex + 1; - } - - for (parserCurrentIndex = 0; parserCurrentIndex < len; parserCurrentIndex++) { - cc = input.charCodeAt(parserCurrentIndex); - if (((cc >= 97) && (cc <= 122)) || (cc < 34)) { - // a-z or whitespace - continue; - } - - switch (cc) { - case 40: // ( - parenLevel++; continue; - case 41: // ) - parenLevel--; continue; - case 59: // ; - if (!parenLevel) { emitChunk(); } - continue; - case 123: // { - level++; lastOpening = parserCurrentIndex; continue; - case 125: // } - level--; lastClosing = parserCurrentIndex; - if (!level) { emitChunk(); } - continue; - case 92: // \ - if (parserCurrentIndex < len - 1) { parserCurrentIndex++; continue; } - return fail("unescaped `\\`"); - case 34: - case 39: - case 96: // ", ' and ` - matched = 0; - currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 1; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 > 96) { continue; } - if (cc2 == cc) { matched = 1; break; } - if (cc2 == 92) { // \ - if (parserCurrentIndex == len - 1) { - return fail("unescaped `\\`"); - } - parserCurrentIndex++; - } - } - if (matched) { continue; } - return fail("unmatched `" + String.fromCharCode(cc) + "`", currentChunkStartIndex); - case 47: // /, check for comment - if (parenLevel || (parserCurrentIndex == len - 1)) { continue; } - cc2 = input.charCodeAt(parserCurrentIndex + 1); - if (cc2 == 47) { - // //, find lnfeed - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if ((cc2 <= 13) && ((cc2 == 10) || (cc2 == 13))) { break; } - } - } else if (cc2 == 42) { - // /*, find */ - lastMultiComment = currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len - 1; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 == 125) { lastMultiCommentEndBrace = parserCurrentIndex; } - if (cc2 != 42) { continue; } - if (input.charCodeAt(parserCurrentIndex + 1) == 47) { break; } - } - if (parserCurrentIndex == len - 1) { - return fail("missing closing `*/`", currentChunkStartIndex); - } - } - continue; - case 42: // *, check for unmatched */ - if ((parserCurrentIndex < len - 1) && (input.charCodeAt(parserCurrentIndex + 1) == 47)) { - return fail("unmatched `/*`"); - } - continue; - } - } - - if (level !== 0) { - if (level > 0) { - if ((lastMultiComment > lastOpening) && (lastMultiCommentEndBrace > lastMultiComment)) { - return fail("missing closing `}` or `*/`", lastOpening); - } else { - return fail("missing closing `}`", lastOpening); - } - } - return fail("missing opening `{`", lastClosing); - } else if (parenLevel !== 0) { - return fail((parenLevel > 0) ? "missing closing `)`" : "missing opening `(`"); - } - - emitChunk(true); - return chunks; - })(str); - - if (error) { - return callback(new(LessError)(error, env)); - } - - current = chunks[0]; - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)(null, this.parsers.primary()); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - return function (options, variables) { - options = options || {}; - var evaldRoot, - css, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, null, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var preEvalVisitors = [], - visitors = [ - new(tree.joinSelectorVisitor)(), - new(tree.processExtendsVisitor)(), - new(tree.toCSSVisitor)({compress: Boolean(options.compress)}) - ], i, root = this; - - if (options.plugins) { - for(i =0; i < options.plugins.length; i++) { - if (options.plugins[i].isPreEvalVisitor) { - preEvalVisitors.push(options.plugins[i]); - } else { - if (options.plugins[i].isPreVisitor) { - visitors.splice(0, 0, options.plugins[i]); - } else { - visitors.push(options.plugins[i]); - } - } - } - } - - for(i = 0; i < preEvalVisitors.length; i++) { - preEvalVisitors[i].run(root); - } - - evaldRoot = evaluate.call(root, evalEnv); - - for(i = 0; i < visitors.length; i++) { - visitors[i].run(evaldRoot); - } - - if (options.sourceMap) { - evaldRoot = new tree.sourceMapOutput( - { - contentsIgnoredCharsMap: parser.imports.contentsIgnoredChars, - writeSourceMap: options.writeSourceMap, - rootNode: evaldRoot, - contentsMap: parser.imports.contents, - sourceMapFilename: options.sourceMapFilename, - sourceMapURL: options.sourceMapURL, - outputFilename: options.sourceMapOutputFilename, - sourceMapBasepath: options.sourceMapBasepath, - sourceMapRootpath: options.sourceMapRootpath, - outputSourceFiles: options.outputSourceFiles, - sourceMapGenerator: options.sourceMapGenerator - }); - } - - css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits)}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.cleancss && less.mode === 'node') { - var CleanCSS = require('clean-css'), - cleancssOptions = options.cleancssOptions || {}; - - if (cleancssOptions.keepSpecialComments === undefined) { - cleancssOptions.keepSpecialComments = "*"; - } - cleancssOptions.processImport = false; - cleancssOptions.noRebase = true; - if (cleancssOptions.noAdvanced === undefined) { - cleancssOptions.noAdvanced = true; - } - - return new CleanCSS(cleancssOptions).minify(css); - } else if (options.compress) { - return css.replace(/(^(\s)+)|((\s)+$)/g, ""); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - var loc = getLocation(i, input); - lines = input.split('\n'); - line = loc.line + 1; - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: loc.column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - return callback(e); - } - else { - return callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - return finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: parsers = { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var mixin = this.mixin, $re = _$re, root = [], node; - - while (true) - { - node = this.extendRule() || mixin.definition() || this.rule() || this.ruleset() || - mixin.call() || this.comment() || this.directive(); - if (node) { - root.push(node); - } else { - if (!($re(/^[\s\n]+/) || $re(/^;+/))) { - break; - } - } - } - - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') { return; } - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($re(/^\/\/.*/), true, i, env.currentFileInfo); - } - comment = $re(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/); - if (comment) { - return new(tree.Comment)(comment, false, i, env.currentFileInfo); - } - }, - - comments: function () { - var comment, comments = []; - - while(true) { - comment = this.comment(); - if (!comment) { - break; - } - comments.push(comment); - } - - return comments; - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; } - - if (e) { $char('~'); } - - str = $re(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/); - if (str) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - k = $re(/^[_A-Za-z-][_A-Za-z0-9-]*/); - if (k) { - var color = tree.Color.fromKeyword(k); - if (color) { - return color; - } - return new(tree.Keyword)(k); - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(current); - if (!name) { return; } - - name = name[1]; - nameLC = name.toLowerCase(); - if (nameLC === 'url') { - return null; - } - - i += name.length; - - if (nameLC === 'alpha') { - alpha_ret = parsers.alpha(); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $char('('); // Parse the '(' and consume whitespace. - - args = this.arguments(); - - if (! $char(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (true) { - arg = this.assignment() || parsers.expression(); - if (!arg) { - break; - } - args.push(arg); - if (! $char(',')) { - break; - } - } - return args; - }, - literal: function () { - return this.dimension() || - this.color() || - this.quoted() || - this.unicodeDescriptor(); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - key = $re(/^\w+(?=\s?=)/i); - if (!key) { - return; - } - if (!$char('=')) { - return; - } - value = parsers.entity(); - if (value) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$re(/^url\(/)) { - return; - } - - value = this.quoted() || this.variable() || - $re(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expectChar(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $re(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var curly, index = i; - - if (input.charAt(i) === '@' && (curly = $re(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $re(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) { - return; - } - - value = $re(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/); - if (value) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - ud = $re(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/); - if (ud) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '`') { return; } - if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) { - error("You are using JavaScript, which has been disabled."); - } - - if (e) { $char('~'); } - - str = $re(/^`([^`]*)`/); - if (str) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*:/))) { return name[1]; } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList, extend; - - if (!(isRule ? $re(/^&:extend\(/) : $re(/^:extend\(/))) { return; } - - do { - option = null; - elements = null; - while (! (option = $re(/^(all)(?=\s*(\)|,))/))) { - e = this.element(); - if (!e) { break; } - if (elements) { elements.push(e); } else { elements = [ e ]; } - } - - option = option && option[1]; - - extend = new(tree.Extend)(new(tree.Selector)(elements), option, index); - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - - } while($char(",")); - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var s = input.charAt(i), important = false, index = i, - elements, elem, e, c, args; - - if (s !== '.' && s !== '#') { return; } - - save(); // stop us absorbing part of an invalid selector - - while (true) { - e = $re(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/); - if (!e) { - break; - } - elem = new(tree.Element)(c, e, i, env.currentFileInfo); - if (elements) { elements.push(elem); } else { elements = [ elem ]; } - c = $char('>'); - } - if ($char('(')) { - args = this.args(true).args; - expectChar(')'); - } - - if (parsers.important()) { - important = true; - } - - if (elements && ($char(';') || peekChar('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - - restore(); - }, - args: function (isCall) { - var parsers = parser.parsers, entities = parsers.entities, - returner = { args:null, variadic: false }, - expressions = [], argsSemiColon = [], argsComma = [], - isSemiColonSeperated, expressionContainsNamed, name, nameLoop, value, arg; - - while (true) { - if (isCall) { - arg = parsers.expression(); - } else { - parsers.comments(); - if (input.charAt(i) === '.' && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = entities.variable() || entities.literal() || entities.keyword(); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value.length == 1) { - val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($char(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(parsers.expression); - nameLoop = (name = val.name); - } else if (!isCall && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($char(',')) { - continue; - } - - if ($char(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) { - return; - } - - save(); - - match = $re(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/); - if (match) { - name = match[1]; - - var argInfo = this.args(false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$char(')')) { - furthest = i; - restore(); - } - - parsers.comments(); - - if ($re(/^when/)) { // Guard - cond = expect(parsers.conditions, 'expected condition'); - } - - ruleset = parsers.block(); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - var entities = this.entities; - - return entities.literal() || entities.variable() || entities.url() || - entities.call() || entities.keyword() || entities.javascript() || - this.comment(); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $char(';') || peekChar('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $re(/^\(opacity=/i)) { return; } - value = $re(/^\d+/) || this.entities.variable(); - if (value) { - expectChar(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, c, v; - - c = this.combinator(); - - e = $re(/^(?:\d+\.\d+|\d+)%/) || $re(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $char('*') || $char('&') || this.attribute() || $re(/^\([^()@]+\)/) || $re(/^[\.#](?=@)/) || - this.entities.variableCurly(); - - if (! e) { - if ($char('(')) { - if ((v = this.selector()) && $char(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, i, env.currentFileInfo); } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|') { - i++; - while (isWhitespace(input, i)) { i++; } - return new(tree.Combinator)(c); - } else if (isWhitespace(input, i - 1)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - // - // A CSS selector (see selector below) - // with less extensions e.g. the ability to extend and guard - // - lessSelector: function () { - return this.selector(true); - }, - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function (isLess) { - var $re = _$re, elements, extendList, c, e, extend, when, condition; - - while ((isLess && (extend = this.extend())) || (isLess && (when = $re(/^when/))) || (e = this.element())) { - if (when) { - condition = expect(this.conditions, 'expected condition'); - } else if (condition) { - error("CSS guard can only be used at the end of selector"); - } else if (extend) { - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - } else { - if (extendList) { error("Extend can only be used at the end of selector"); } - c = input.charAt(i); - if (elements) { elements.push(e); } else { elements = [ e ]; } - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { - break; - } - } - - if (elements) { return new(tree.Selector)(elements, extendList, condition, i, env.currentFileInfo); } - if (extendList) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - if (! $char('[')) { return; } - - var entities = this.entities, - key, val, op; - - if (!(key = entities.variableCurly())) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - op = $re(/^[|~*$^]?=/); - if (op) { - val = entities.quoted() || $re(/^[0-9]+%/) || $re(/^[\w-]+/) || entities.variableCurly(); - } - - expectChar(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($char('{') && (content = this.primary()) && $char('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors, s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - while (true) { - s = this.lessSelector(); - if (!s) { - break; - } - if (selectors) { selectors.push(s); } else { selectors = [ s ]; } - this.comments(); - if (! $char(',')) { break; } - if (s.condition) { - error("Guards are only currently allowed on a single selector."); - } - this.comments(); - } - - if (selectors && (rules = this.block())) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) { - ruleset.debugInfo = debugInfo; - } - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, c = input.charAt(i), important, merge = false; - save(); - - if (c === '.' || c === '#' || c === '&') { return; } - - name = this.variable() || this.ruleProperty(); - if (name) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || (name.charAt && (name.charAt(0) === '@'))) ? - (this.value() || this.anonymousValue()) : - (this.anonymousValue() || this.value()); - - important = this.important(); - - // a name returned by this.ruleProperty() is always an array of the form: - // ["", "string-1", ..., "string-n", ""] or ["", "string-1", ..., "string-n", "+"] - merge = name.pop && (name.pop() === "+"); - - if (value && this.end()) { - return new (tree.Rule)(name, value, important, merge, memo, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } - }, - anonymousValue: function () { - var match; - match = /^([^@+\/'"*`(;{}-]*);/.exec(current); - if (match) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $re(/^@import?\s+/); - - var options = (dir ? this.importOptions() : null) || {}; - - if (dir && (path = this.entities.quoted() || this.entities.url())) { - features = this.mediaFeatures(); - if ($char(';')) { - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $char('(')) { return null; } - do { - o = this.importOption(); - if (o) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $char(',')) { break; } - } - } while (o); - expectChar(')'); - return options; - }, - - importOption: function() { - var opt = $re(/^(less|css|multiple|once|inline|reference)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var entities = this.entities, nodes = [], e, p; - do { - e = entities.keyword() || entities.variable(); - if (e) { - nodes.push(e); - } else if ($char('(')) { - p = this.property(); - e = this.value(); - if ($char(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null; } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var entities = this.entities, features = [], e; - do { - e = this.mediaFeature(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } else { - e = entities.variable(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - if ($re(/^@media/)) { - features = this.mediaFeatures(); - - rules = this.block(); - if (rules) { - media = new(tree.Media)(rules, features, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - media.debugInfo = debugInfo; - } - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression, identifier; - - if (input.charAt(i) !== '@') { return; } - - value = this['import']() || this.media(); - if (value) { - return value; - } - - save(); - - name = $re(/^@[a-z-]+/); - - if (!name) { return; } - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@host": - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - identifier = ($re(/^[^{]+/) || '').trim(); - if (identifier) { - name += " " + identifier; - } - } - - if (hasBlock) { - rules = this.block(); - if (rules) { - return new(tree.Directive)(name, rules, i, env.currentFileInfo); - } - } else { - value = hasExpression ? this.expression() : this.entity(); - if (value && $char(';')) { - var directive = new(tree.Directive)(name, value, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = []; - - do { - e = this.expression(); - if (e) { - expressions.push(e); - if (! $char(',')) { break; } - } - } while(e); - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $re(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($char('(')) { - a = this.addition(); - if (a) { - e = new(tree.Expression)([a]); - expectChar(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced; - m = this.operand(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - if (peek(/^\/[*\/]/)) { - break; - } - op = $char('/') || $char('*'); - - if (!op) { break; } - - a = this.operand(); - - if (!a) { break; } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - m = this.multiplication(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - op = $re(/^[-+]\s+/) || (!isSpaced && ($char('+') || $char('-'))); - if (!op) { - break; - } - a = this.multiplication(); - if (!a) { - break; - } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - a = this.condition(); - if (a) { - while (true) { - if (!peek(/^,\s*(not\s*)?\(/) || !$char(',')) { - break; - } - b = this.condition(); - if (!b) { - break; - } - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var entities = this.entities, index = i, negate = false, - a, b, c, op; - - if ($re(/^not/)) { negate = true; } - expectChar('('); - a = this.addition() || entities.keyword() || entities.quoted(); - if (a) { - op = $re(/^(?:>=|<=|=<|[<=>])/); - if (op) { - b = this.addition() || entities.keyword() || entities.quoted(); - if (b) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expectChar(')'); - return $re(/^and/) ? new(tree.Condition)('and', c, this.condition()) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var entities = this.entities, - p = input.charAt(i + 1), negate; - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $char('-'); } - var o = this.sub() || entities.dimension() || - entities.color() || entities.variable() || - entities.call(); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var entities = [], e, delim; - - do { - e = this.addition() || this.entity(); - if (e) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/)) { - delim = $char('/'); - if (delim) { - entities.push(new(tree.Anonymous)(delim)); - } - } - } - } while (e); - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name = $re(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/); - if (name) { - return name[1]; - } - }, - ruleProperty: function () { - var c = current, name = [], index = [], length = 0; - - function match(re) { - var a = re.exec(c); - if (a) { - index.push(i + length); - length += a[0].length; - c = c.slice(a[1].length); - return name.push(a[1]); - } - } - - match(/^(\*?)/); - while (match(/^((?:[\w-]+)|(?:@\{[\w-]+\}))/)); // ! - if ((name.length > 1) && match(/^\s*(\+?)\s*:/)) { - // at last, we have the complete match now. move forward, - // convert @{var}s to tree.Variable(s) and return: - skipWhitespace(length); - for (var k in name) { - if (name[k].charAt(0) === '@') { - name[k] = new tree.Variable('@' + name[k].slice(2, -1), - index[k], env.currentFileInfo); - } - } - return name; - } - } - } - }; - return parser; -}; -less.Parser.serializeVars = function(vars) { - var s = ''; - - for (var name in vars) { - if (Object.hasOwnProperty.call(vars, name)) { - var value = vars[name]; - s += ((name[0] === '@') ? '' : '@') + name +': '+ value + - ((('' + value).slice(-1) === ';') ? '' : ';'); - } - } - - return s; -}; -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 255); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; } - else if (h * 2 < 1) { return m2; } - else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; } - else { return m1; } - } - - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - // filter: saturate(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if (color.luma() < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - /*jshint loopfunc:true */ - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - if(!(val instanceof tree.Dimension)) { - throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") }; - } - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return _math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _minmax: function (isMin, args) { - args = Array.prototype.slice.call(args); - switch(args.length) { - case 0: throw { type: "Argument", message: "one or more arguments required" }; - case 1: return args[0]; - } - var i, j, current, currentUnified, referenceUnified, unit, - order = [], // elems only contains original argument values. - values = {}; // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - for (i = 0; i < args.length; i++) { - current = args[i]; - if (!(current instanceof tree.Dimension)) { - order.push(current); - continue; - } - currentUnified = current.unify(); - unit = currentUnified.unit.toString(); - j = values[unit]; - if (j === undefined) { - values[unit] = order.length; - order.push(current); - continue; - } - referenceUnified = order[j].unify(); - if ( isMin && currentUnified.value < referenceUnified.value || - !isMin && currentUnified.value > referenceUnified.value) { - order[j] = current; - } - } - if (order.length == 1) { - return order[0]; - } - args = order.map(function (a) { return a.toCSS(this.env); }) - .join(this.env.compress ? "," : ", "); - return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")"); - }, - min: function () { - return this._minmax(true, arguments); - }, - max: function () { - return this._minmax(false, arguments); - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - var colorCandidate = n.value, - returnColor; - returnColor = tree.Color.fromKeyword(colorCandidate); - if (returnColor) { - return returnColor; - } - if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) { - return new(tree.Color)(colorCandidate.slice(1)); - } - throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" }; - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - return Array.isArray(values.value) - ? values.value[index] : Array(values)[index]; - }, - length: function(values) { - var n = Array.isArray(values.value) ? values.value.length : 1; - return new tree.Dimension(n); - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require("fs"), - path = require("path"), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) { mimetype += ';base64'; } - } - else { - useBase64 = /;base64$/.test(mimetype); - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "'data:" + mimetype + ',' + buf + "'"; - return new(tree.URL)(new(tree.Anonymous)(uri)); - }, - - "svg-gradient": function(direction) { - - function throwArgumentDescriptor() { - throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" }; - } - - if (arguments.length < 3) { - throwArgumentDescriptor(); - } - var stops = Array.prototype.slice.call(arguments, 1), - gradientDirectionSvg, - gradientType = "linear", - rectangleDimension = 'x="0" y="0" width="1" height="1"', - useBase64 = true, - renderEnv = {compress: false}, - returner, - directionValue = direction.toCSS(renderEnv), - i, color, position, positionValue, alpha; - - switch (directionValue) { - case "to bottom": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - gradientType = "radial"; - gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" }; - } - returner = '' + - '' + - '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>'; - - for (i = 0; i < stops.length; i+= 1) { - if (stops[i].value) { - color = stops[i].value[0]; - position = stops[i].value[1]; - } else { - color = stops[i]; - position = undefined; - } - - if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) { - throwArgumentDescriptor(); - } - positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%"; - alpha = color.alpha; - returner += ''; - } - returner += '' + - ''; - - if (useBase64) { - // only works in node, needs interface to what is supported in environment - try { - returner = new Buffer(returner).toString('base64'); - } catch(e) { - useBase64 = false; - } - } - - returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'"; - return new(tree.URL)(new(tree.Anonymous)(returner)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -// Math - -var mathFunctions = { - // name, unit - ceil: null, - floor: null, - sqrt: null, - abs: null, - tan: "", - sin: "", - cos: "", - atan: "rad", - asin: "rad", - acos: "rad" -}; - -function _math(fn, unit, n) { - if (!(n instanceof tree.Dimension)) { - throw { type: "Argument", message: "argument must be a number" }; - } - if (unit == null) { - unit = n.unit; - } else { - n = n.unify(); - } - return new(tree.Dimension)(fn(parseFloat(n.value)), unit); -} - -// ~ End of Math - -// Color Blending -// ref: http://www.w3.org/TR/compositing-1 - -function colorBlend(mode, color1, color2) { - var ab = color1.alpha, cb, // backdrop - as = color2.alpha, cs, // source - ar, cr, r = []; // result - - ar = as + ab * (1 - as); - for (var i = 0; i < 3; i++) { - cb = color1.rgb[i] / 255; - cs = color2.rgb[i] / 255; - cr = mode(cb, cs); - if (ar) { - cr = (as * cs + ab * (cb - - as * (cb + cs - cr))) / ar; - } - r[i] = cr * 255; - } - - return new(tree.Color)(r, ar); -} - -var colorBlendMode = { - multiply: function(cb, cs) { - return cb * cs; - }, - screen: function(cb, cs) { - return cb + cs - cb * cs; - }, - overlay: function(cb, cs) { - cb *= 2; - return (cb <= 1) - ? colorBlendMode.multiply(cb, cs) - : colorBlendMode.screen(cb - 1, cs); - }, - softlight: function(cb, cs) { - var d = 1, e = cb; - if (cs > 0.5) { - e = 1; - d = (cb > 0.25) ? Math.sqrt(cb) - : ((16 * cb - 12) * cb + 4) * cb; - } - return cb - (1 - 2 * cs) * e * (d - cb); - }, - hardlight: function(cb, cs) { - return colorBlendMode.overlay(cs, cb); - }, - difference: function(cb, cs) { - return Math.abs(cb - cs); - }, - exclusion: function(cb, cs) { - return cb + cs - 2 * cb * cs; - }, - - // non-w3c functions: - average: function(cb, cs) { - return (cb + cs) / 2; - }, - negation: function(cb, cs) { - return 1 - Math.abs(cb + cs - 1); - } -}; - -// ~ End of Color Blending - -tree.defaultFunc = { - eval: function () { - var v = this.value_, e = this.error_; - if (e) { - throw e; - } - if (v != null) { - return v ? tree.True : tree.False; - } - }, - value: function (v) { - this.value_ = v; - }, - error: function (e) { - this.error_ = e; - }, - reset: function () { - this.value_ = this.error_ = null; - } -}; - -function initFunctions() { - var f, tf = tree.functions; - - // math - for (f in mathFunctions) { - tf[f] = _math.bind(null, Math[f], mathFunctions[f]); - } - - // color blending - for (f in colorBlendMode) { - tf[f] = colorBlend.bind(null, colorBlendMode[f]); - } - - // default - f = tree.defaultFunc; - tf.default = f.eval.bind(f); - -} initFunctions(); - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); - -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); - -(function (tree) { - -tree.debugInfo = function(env, ctx, lineSeperator) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:/\\])/g, function (a) { - if (a == '\\') { - a = '\/'; - } - return '\\' + a; - }) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - r = fun.call(obj, obj[i]); - if (r) { return r; } - } - return null; -}; - -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false); }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -tree.toCSS = function (env) { - var strs = []; - this.genCSS(env, { - add: function(chunk, fileInfo, index) { - strs.push(chunk); - }, - isEmpty: function () { - return strs.length === 0; - } - }); - return strs.join(''); -}; - -tree.outputRuleset = function (env, output, rules) { - var ruleCnt = rules.length, i; - env.tabLevel = (env.tabLevel | 0) + 1; - - // Compressed - if (env.compress) { - output.add('{'); - for (i = 0; i < ruleCnt; i++) { - rules[i].genCSS(env, output); - } - output.add('}'); - env.tabLevel--; - return; - } - - // Non-compressed - var tabSetStr = '\n' + Array(env.tabLevel).join(" "), tabRuleStr = tabSetStr + " "; - if (!ruleCnt) { - output.add(" {" + tabSetStr + '}'); - } else { - output.add(" {" + tabRuleStr); - rules[0].genCSS(env, output); - for (i = 1; i < ruleCnt; i++) { - output.add(tabRuleStr); - rules[i].genCSS(env, output); - } - output.add(tabSetStr + '}'); - } - - env.tabLevel--; -}; - -})(require('./tree')); - -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } - return this; - }, - genCSS: function (env, output) { - output.add("alpha(opacity="); - - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - - output.add(")"); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Anonymous = function (string, index, currentFileInfo, mapLines) { - this.value = string.value || string; - this.index = index; - this.mapLines = mapLines; - this.currentFileInfo = currentFileInfo; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - eval: function () { - return new tree.Anonymous(this.value, this.index, this.currentFileInfo, this.mapLines); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - }, - genCSS: function (env, output) { - output.add(this.value, this.currentFileInfo, this.index, this.mapLines); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - }, - genCSS: function (env, output) { - output.add(this.key + '='); - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - if (this.args) { - this.args = visitor.visitArray(this.args); - } - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - return new tree.Call(this.name, args, this.index, this.currentFileInfo); - }, - - genCSS: function (env, output) { - output.add(this.name + "(", this.currentFileInfo, this.index); - - for(var i = 0; i < this.args.length; i++) { - this.args[i].genCSS(env, output); - if (i + 1 < this.args.length) { - output.add(", "); - } - } - - output.add(")"); - }, - - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; - -var transparentKeyword = "transparent"; - -tree.Color.prototype = { - type: "Color", - eval: function () { return this; }, - luma: function () { return (0.2126 * this.rgb[0] / 255) + (0.7152 * this.rgb[1] / 255) + (0.0722 * this.rgb[2] / 255); }, - - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress; - - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - if (this.alpha < 1) { - if (this.alpha === 0 && this.isTransparentKeyword) { - return transparentKeyword; - } - return "rgba(" + this.rgb.map(function (c) { - return clamp(Math.round(c), 255); - }).concat(clamp(this.alpha, 1)) - .join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.toRGB(); - - if (compress) { - var splitcolor = color.split(''); - - // Convert color to short format - if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) { - color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5]; - } - } - - return color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var rgb = []; - var alpha = this.alpha * (1 - other.alpha) + other.alpha; - for (var c = 0; c < 3; c++) { - rgb[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(rgb, alpha); - }, - - toRGB: function () { - return toHex(this.rgb); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - return toHex([this.alpha * 255].concat(this.rgb)); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - -tree.Color.fromKeyword = function(keyword) { - if (tree.colors.hasOwnProperty(keyword)) { - // detect named color - return new(tree.Color)(tree.colors[keyword].slice(1)); - } - if (keyword === transparentKeyword) { - var transparent = new(tree.Color)([0, 0, 0], 0); - transparent.isTransparentKeyword = true; - return transparent; - } -}; - -function toHex(v) { - return '#' + v.map(function (c) { - c = clamp(Math.round(c), 255); - return (c < 16 ? '0' : '') + c.toString(16); - }).join(''); -} - -function clamp(v, max) { - return Math.min(Math.max(v, 0), max); -} - -})(require('../tree')); - -(function (tree) { - -tree.Comment = function (value, silent, index, currentFileInfo) { - this.value = value; - this.silent = !!silent; - this.currentFileInfo = currentFileInfo; -}; -tree.Comment.prototype = { - type: "Comment", - genCSS: function (env, output) { - if (this.debugInfo) { - output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index); - } - output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n - }, - toCSS: tree.toCSS, - isSilent: function(env) { - var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced), - isCompressed = env.compress && !this.value.match(/^\/\*!/); - return this.silent || isReference || isCompressed; - }, - eval: function () { return this; }, - markReferenced: function () { - this.isReferenced = true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<' || op === '<='; - case 0: return op === '=' || op === '>=' || op === '=<' || op === '<='; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); - -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - genCSS: function (env, output) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = this.value, - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && this.unit.isLength()) { - output.add(strValue); - return; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - output.add(strValue); - this.unit.genCSS(env, output); - }, - toCSS: tree.toCSS, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - /*jshint noempty:false */ - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a = this.unify(), b = other.unify(), - aValue = a.value, bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - if (!b.unit.isEmpty() && a.unit.compare(b.unit) !== 0) { - return -1; - } - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'm', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, targetUnit, derivedConversions = {}, applyUnit; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - applyUnit = function (atomicUnit, denominator) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(applyUnit); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - genCSS: function (env, output) { - if (this.numerator.length >= 1) { - output.add(this.numerator[0]); - } else - if (this.denominator.length >= 1) { - output.add(this.denominator[0]); - } else - if ((!env || !env.strictUnits) && this.backupUnit) { - output.add(this.backupUnit); - } - }, - toCSS: tree.toCSS, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isLength: function () { - return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/)); - }, - - isEmpty: function () { - return this.numerator.length === 0 && this.denominator.length === 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length === 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, result = {}, mapUnit; - - mapUnit = function (atomicUnit) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }; - - for (var groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(mapUnit); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Directive = function (name, value, index, currentFileInfo) { - this.name = name; - - if (Array.isArray(value)) { - this.rules = [new(tree.Ruleset)(null, value)]; - this.rules[0].allowImports = true; - } else { - this.value = value; - } - this.currentFileInfo = currentFileInfo; - -}; -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - if (this.value) { - this.value = visitor.visit(this.value); - } - }, - genCSS: function (env, output) { - output.add(this.name, this.currentFileInfo, this.index); - if (this.rules) { - tree.outputRuleset(env, output, this.rules); - } else { - output.add(' '); - this.value.genCSS(env, output); - output.add(';'); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var evaldDirective = this; - if (this.rules) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name, null, this.index, this.currentFileInfo); - evaldDirective.rules = [this.rules[0].eval(env)]; - evaldDirective.rules[0].root = true; - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - markReferenced: function () { - var i, rules; - this.isReferenced = true; - if (this.rules) { - rules = this.rules[0].rules; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Element = function (combinator, value, index, currentFileInfo) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - var value = this.value; - this.combinator = visitor.visit(this.combinator); - if (typeof value === "object") { - this.value = visitor.visit(value); - } - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index, - this.currentFileInfo); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env), this.currentFileInfo, this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value === '' && this.combinator.value.charAt(0) === '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - _outputMap: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : ' + ', - '~' : ' ~ ', - '>' : ' > ', - '|' : '|' - }, - _outputMapCompressed: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : '+', - '~' : '~', - '>' : '>', - '|' : '|' - }, - genCSS: function (env, output) { - output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - genCSS: function (env, output) { - for(var i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i + 1 < this.value.length) { - output.add(" "); - } - } - }, - toCSS: tree.toCSS, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - this.object_id = tree.Extend.next_id++; - this.parent_ids = [this.object_id]; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; -tree.Extend.next_id = 0; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i, - selectorElements; - - for(i = 0; i < selectors.length; i++) { - selectorElements = selectors[i].elements; - // duplicate the logic in genCSS function inside the selector node. - // future TODO - move both logics into the selector joiner visitor - if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") { - selectorElements[0].combinator.value = ' '; - } - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); - -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined || this.options.inline) { - this.css = !this.options.less || this.options.inline; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - this.path = visitor.visit(this.path); - if (!this.options.inline && this.root) { - this.root = visitor.visit(this.root); - } - }, - genCSS: function (env, output) { - if (this.css) { - output.add("@import ", this.currentFileInfo, this.index); - this.path.genCSS(env, output); - if (this.features) { - output.add(" "); - this.features.genCSS(env, output); - } - output.add(';'); - } - }, - toCSS: tree.toCSS, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - - if (!(path instanceof tree.URL)) { - if (rootpath) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath + pathValue; - } - } - path.value = env.normalizePath(path.value); - } - - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { return []; } - - if (this.options.inline) { - //todo needs to reference css file not import - var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true); - return this.features ? new(tree.Media)([contents], this.features.value) : [contents]; - } else if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - /*jshint loopfunc:true */ - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'number') { - return new(tree.Dimension)(result); - } else if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Keyword = function (value) { this.value = value; }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); - -(function (tree) { - -tree.Media = function (value, features, index, currentFileInfo) { - this.index = index; - this.currentFileInfo = currentFileInfo; - - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.rules = [new(tree.Ruleset)(selectors, value)]; - this.rules[0].allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - }, - genCSS: function (env, output) { - output.add('@media ', this.currentFileInfo, this.index); - this.features.genCSS(env, output); - tree.outputRuleset(env, output, this.rules); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)(null, [], this.index, this.currentFileInfo); - if(this.debugInfo) { - this.rules[0].debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.rules[0]); - media.rules = [this.rules[0].eval(env)]; - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env); - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', this.index, this.currentFileInfo); - return [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)]; - }, - markReferenced: function () { - var i, rules = this.rules[0].rules; - this.isReferenced = true; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])]; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = (args && args.length) ? args : null; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - if (this.selector) { - this.selector = visitor.visit(this.selector); - } - if (this.arguments) { - this.arguments = visitor.visitArray(this.arguments); - } - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule; - var candidates = [], candidate, conditionResult = [], defaultFunc = tree.defaultFunc, defaultUsed = false; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - - // To make `default()` function independent of definition order we have two "subpasses" here. - // At first we evaluate each guard *twice* (with `default() == true` and `default() == false`), - // and build candidate list with corresponding flags. Then, when we know all possible matches, - // we make a final decision. - - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - - if (mixin.matchArgs(args, env)) { - candidate = {mixin: mixin}; - - if (mixin.matchCondition) { - for (f = 0; f < 2; f++) { - defaultFunc.value(f); - conditionResult[f] = mixin.matchCondition(args, env); - } - if (conditionResult[0] || conditionResult[1]) { - if (conditionResult[0] != conditionResult[1]) { - if (defaultUsed) { - // todo: ideally, it would make sense to also print the candidate - // mixin definitions that cause the conflict (current one and the - // mixin that set defaultUsed flag). But is there any easy method - // to get their filename/line/index info here? - throw { type: 'Runtime', - message: 'Ambiguous use of `default()` found when matching for `' - + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } - - defaultUsed = true; - candidate.matchIfDefault = true; - candidate.matchIfDefaultValue = conditionResult[1]; - } - - candidates.push(candidate); - } - } - else { - candidates.push(candidate); - } - - match = true; - } - } - - defaultFunc.reset(); - - for (m in candidates) { - candidate = candidates[m]; - if (!candidate.matchIfDefault || (candidate.matchIfDefaultValue == (candidates.length == 1))) { - try { - mixin = candidate.mixin; - if (!(mixin instanceof tree.mixin.Definition)) { - mixin = new tree.mixin.Definition("", [], mixin.rules, null, false); - mixin.originalRuleset = mixins[m].originalRuleset || mixins[m]; - } - //if (this.important) { - // isImportant = env.isImportant; - // env.isImportant = true; - //} - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - //if (this.important) { - // env.isImportant = isImportant; - //} - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - } - - if (match) { - if (!this.currentFileInfo || !this.currentFileInfo.reference) { - for (i = 0; i < rules.length; i++) { - rule = rules[i]; - if (rule.markReferenced) { - rule.markReferenced(); - } - } - } - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - }, - format: function (args) { - return this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")"; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1; } - else { return count; } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - if (this.params && this.params.length) { - this.params = visitor.visitArray(this.params); - } - this.rules = visitor.visitArray(this.rules); - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - /*jshint boss:true */ - var frame = new(tree.Ruleset)(null, null), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.prependRule(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) { continue; } - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.prependRule(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.prependRule(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - rules, ruleset; - - frame.prependRule(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules); - ruleset.originalRuleset = this; - ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames))); - if (important) { - ruleset = this.parent.makeImportant.apply(ruleset); - } - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] // the parameter variables - .concat(this.frames) // the parent namespace/mixin frames - .concat(env.frames)))) { // the current environment frames - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (! this.variadic) { - if (argsLength < this.required) { return false; } - if (argsLength > this.params.length) { return false; } - } else { - if (argsLength < (this.required - 1)) { return false; } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('-'); - this.value.genCSS(env, output); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env); - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - a = a.toColor(); - } - if (b instanceof tree.Dimension && a instanceof tree.Color) { - b = b.toColor(); - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - genCSS: function (env, output) { - this.operands[0].genCSS(env, output); - if (this.isSpaced) { - output.add(" "); - } - output.add(this.op); - if (this.isSpaced) { - output.add(" "); - } - this.operands[1].genCSS(env, output); - }, - toCSS: tree.toCSS -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('('); - this.value.genCSS(env, output); - output.add(')'); - }, - toCSS: tree.toCSS, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - genCSS: function (env, output) { - if (!this.escaped) { - output.add(this.quote, this.currentFileInfo, this.index); - } - output.add(this.value); - if (!this.escaped) { - output.add(this.quote); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.merge = merge; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - this.variable = name.charAt && (name.charAt(0) === '@'); -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index); - try { - this.value.genCSS(env, output); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index); - }, - toCSS: tree.toCSS, - eval: function (env) { - var strictMathBypass = false; - var name = this.name.map ? - this.name.map( function(v) { - return v.eval ? v.eval(env).value : v; - }).join('') : this.name; - if (name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - return new(tree.Rule)(name, - this.value.eval(env), - this.important, - this.merge, - this.index, this.currentFileInfo, this.inline); - } - catch(e) { - if (e.index === undefined) { - e.index = this.index; - } - throw e; - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.merge, - this.index, this.currentFileInfo, this.inline); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - if (this.paths) { - visitor.visitArray(this.paths, true); - } else if (this.selectors) { - this.selectors = visitor.visitArray(this.selectors); - } - if (this.rules && this.rules.length) { - this.rules = visitor.visitArray(this.rules); - } - }, - eval: function (env) { - var thisSelectors = this.selectors, selectors, - selCnt, i, defaultFunc = tree.defaultFunc; - if (thisSelectors && (selCnt = thisSelectors.length)) { - selectors = []; - defaultFunc.error({ - type: "Syntax", - message: "it is currently only allowed in parametric mixin guards," - }); - for (i = 0; i < selCnt; i++) { - selectors.push(thisSelectors[i].eval(env)); - } - defaultFunc.reset(); - } - - var rules = this.rules ? this.rules.slice(0) : null, - ruleset = new(tree.Ruleset)(selectors, rules, this.strictImports), - rule; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - var envFrames = env.frames; - envFrames.unshift(ruleset); - - // currrent selectors - var envSelectors = env.selectors; - if (!envSelectors) { - env.selectors = envSelectors = []; - } - envSelectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - var rsRules = ruleset.rules, rsRuleCnt = rsRules ? rsRules.length : 0; - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Definition) { - rsRules[i].frames = envFrames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Call) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (i = 0; i < rsRuleCnt; i++) { - rule = rsRules[i]; - if (! (rule instanceof tree.mixin.Definition)) { - rsRules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - envFrames.shift(); - envSelectors.shift(); - - if (env.mediaBlocks) { - for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var rules = this.rules, i, importRules; - if (!rules) { return; } - - for (i = 0; i < rules.length; i++) { - if (rules[i] instanceof tree.Import) { - importRules = rules[i].eval(env); - if (importRules && importRules.length) { - rules.splice.apply(rules, [i, 1].concat(importRules)); - i+= importRules.length-1; - } else { - rules.splice(i, 1, importRules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - matchCondition: function (args, env) { - var lastSelector = this.selectors[this.selectors.length-1]; - if (lastSelector.condition && - !lastSelector.condition.eval( - new(tree.evalEnv)(env, - env.frames))) { - return false; - } - return true; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (!this._variables) { - this._variables = !this.rules ? {} : this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - return this._variables; - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (!this.rules) { return null; } - - var _Ruleset = tree.Ruleset, _MixinDefinition = tree.mixin.Definition, - filtRules = [], rules = this.rules, cnt = rules.length, - i, rule; - - for (i = 0; i < cnt; i++) { - rule = rules[i]; - if ((rule instanceof _Ruleset) || (rule instanceof _MixinDefinition)) { - filtRules.push(rule); - } - } - - return filtRules; - }, - prependRule: function (rule) { - var rules = this.rules; - if (rules) { rules.unshift(rule); } else { this.rules = [ rule ]; } - }, - find: function (selector, self) { - self = self || this; - var rules = [], match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key]; } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - match = selector.match(rule.selectors[j]); - if (match) { - if (selector.elements.length > match) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(match)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - this._lookups[key] = rules; - return rules; - }, - genCSS: function (env, output) { - var i, j, - ruleNodes = [], - rulesetNodes = [], - rulesetNodeCnt, - debugInfo, // Line number debugging - rule, - path; - - env.tabLevel = (env.tabLevel || 0); - - if (!this.root) { - env.tabLevel++; - } - - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "), - sep; - - for (i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - if (rule.rules || (rule instanceof tree.Media) || rule instanceof tree.Directive || (this.root && rule instanceof tree.Comment)) { - rulesetNodes.push(rule); - } else { - ruleNodes.push(rule); - } - } - - // If this is the root node, we don't render - // a selector, or {}. - if (!this.root) { - debugInfo = tree.debugInfo(env, this, tabSetStr); - - if (debugInfo) { - output.add(debugInfo); - output.add(tabSetStr); - } - - var paths = this.paths, pathCnt = paths.length, - pathSubCnt; - - sep = env.compress ? ',' : (',\n' + tabSetStr); - - for (i = 0; i < pathCnt; i++) { - path = paths[i]; - if (!(pathSubCnt = path.length)) { continue; } - if (i > 0) { output.add(sep); } - - env.firstSelector = true; - path[0].genCSS(env, output); - - env.firstSelector = false; - for (j = 1; j < pathSubCnt; j++) { - path[j].genCSS(env, output); - } - } - - output.add((env.compress ? '{' : ' {\n') + tabRuleStr); - } - - // Compile rules and rulesets - for (i = 0; i < ruleNodes.length; i++) { - rule = ruleNodes[i]; - - // @page{ directive ends up with root elements inside it, a mix of rules and rulesets - // In this instance we do not know whether it is the last property - if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) { - env.lastRule = true; - } - - if (rule.genCSS) { - rule.genCSS(env, output); - } else if (rule.value) { - output.add(rule.value.toString()); - } - - if (!env.lastRule) { - output.add(env.compress ? '' : ('\n' + tabRuleStr)); - } else { - env.lastRule = false; - } - } - - if (!this.root) { - output.add((env.compress ? '}' : '\n' + tabSetStr + '}')); - env.tabLevel--; - } - - sep = (env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr); - rulesetNodeCnt = rulesetNodes.length; - if (rulesetNodeCnt) { - if (ruleNodes.length && sep) { output.add(sep); } - rulesetNodes[0].genCSS(env, output); - for (i = 1; i < rulesetNodeCnt; i++) { - if (sep) { output.add(sep); } - rulesetNodes[i].genCSS(env, output); - } - } - - if (!output.isEmpty() && !env.compress && this.firstRoot) { - output.add('\n'); - } - }, - - toCSS: tree.toCSS, - - markReferenced: function () { - for (var s = 0; s < this.selectors.length; s++) { - this.selectors[s].markReferenced(); - } - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for (i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for (j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length === 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0, el.index, el.currentFileInfo)); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for (k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = selector.createDerived([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for (i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length === 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for (i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); - -(function (tree) { - -tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) { - this.elements = elements; - this.extendList = extendList; - this.condition = condition; - this.currentFileInfo = currentFileInfo || {}; - this.isReferenced = isReferenced; - if (!condition) { - this.evaldCondition = true; - } -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - if (this.elements) { - this.elements = visitor.visitArray(this.elements); - } - if (this.extendList) { - this.extendList = visitor.visitArray(this.extendList); - } - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - createDerived: function(elements, extendList, evaldCondition) { - evaldCondition = (evaldCondition != null) ? evaldCondition : this.evaldCondition; - var newSelector = new(tree.Selector)(elements, extendList || this.extendList, this.condition, this.index, this.currentFileInfo, this.isReferenced); - newSelector.evaldCondition = evaldCondition; - return newSelector; - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, i; - - oelements = other.elements.map( function(v) { - return v.combinator.value + (v.value.value || v.value); - }).join("").match(/[,&#\.\w-]([\w-]|(\\.))*/g); - // ^ regexp could be more simple but see test/less/css-escapes.less:17, doh! - - if (!oelements) { - return 0; - } - - if (oelements[0] === "&") { - oelements.shift(); - } - - olen = oelements.length; - if (olen === 0 || len < olen) { - return 0; - } else { - for (i = 0; i < olen; i++) { - if (elements[i].value !== oelements[i]) { - return 0; - } - } - } - return olen; // return number of matched elements - }, - eval: function (env) { - var evaldCondition = this.condition && this.condition.eval(env), - elements = this.elements, extendList = this.extendList; - - elements = elements && elements.map(function (e) { return e.eval(env); }); - extendList = extendList && extendList.map(function(extend) { return extend.eval(env); }); - - return this.createDerived(elements, extendList, evaldCondition); - }, - genCSS: function (env, output) { - var i, element; - if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") { - output.add(' ', this.currentFileInfo, this.index); - } - if (!this._css) { - //TODO caching? speed comparison? - for(i = 0; i < this.elements.length; i++) { - element = this.elements[i]; - element.genCSS(env, output); - } - } - }, - toCSS: tree.toCSS, - markReferenced: function () { - this.isReferenced = true; - }, - getIsReferenced: function() { - return !this.currentFileInfo.reference || this.isReferenced; - }, - getIsOutput: function() { - return this.evaldCondition; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - eval: function () { return this; } -}; - -})(require('../tree')); - -(function (tree) { - -tree.URL = function (val, currentFileInfo, isEvald) { - this.value = val; - this.currentFileInfo = currentFileInfo; - this.isEvald = isEvald; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add("url("); - this.value.genCSS(env, output); - output.add(")"); - }, - toCSS: tree.toCSS, - eval: function (ctx) { - var val = this.value.eval(ctx), - rootpath; - - if (!this.isEvald) { - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - val.value = ctx.normalizePath(val.value); - } - - return new(tree.URL)(val, this.currentFileInfo, true); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - genCSS: function (env, output) { - var i; - for(i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i+1 < this.value.length) { - output.add((env && env.compress) ? ',' : ', '); - } - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { - this.name = name; - this.index = index; - this.currentFileInfo = currentFileInfo || {}; -}; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, name = this.name; - - if (name.indexOf('@@') === 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - variable = tree.find(env.frames, function (frame) { - var v = frame.variable(name); - if (v) { - return v.value.eval(env); - } - }); - if (variable) { - this.evaluating = false; - return variable; - } else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); - -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // map - filename to contents of all the files - 'contentsIgnoredChars', // map - filename to lines at the begining of each file to ignore - 'relativeUrls', // option - whether to adjust URL's to be relative - 'rootpath', // option - rootpath to append to URL's - 'strictImports', // option - - 'insecure', // option - whether to allow imports from insecure ssl hosts - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true - 'mime', // browser only - mime type for sheet import - 'useFileCache', // browser only - whether to use the per file session cache - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' - absolute path to the entry file - // 'reference' - whether the file should not be output and only output parts that are referenced - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.contentsIgnoredChars) { this.contentsIgnoredChars = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits', // whether units need to evaluate correctly - 'cleancss', // whether to compress with clean-css - 'sourceMap', // whether to output a source map - 'importMultiple'// whether we are currently importing multiple copies - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - tree.evalEnv.prototype.normalizePath = function( path ) { - var - segments = path.split("/").reverse(), - segment; - - path = []; - while (segments.length !== 0 ) { - segment = segments.pop(); - switch( segment ) { - case ".": - break; - case "..": - if ((path.length === 0) || (path[path.length - 1] === "..")) { - path.push( segment ); - } else { - path.pop(); - } - break; - default: - path.push( segment ); - break; - } - } - - return path.join("/"); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - }; - -})(require('./tree')); - -(function (tree) { - - var _visitArgs = { visitDeeper: true }, - _hasIndexed = false; - - function _noop(node) { - return node; - } - - function indexNodeTypes(parent, ticker) { - // add .typeIndex to tree node types for lookup table - var key, child; - for (key in parent) { - child = parent[key]; - switch (typeof child) { - case "function": - // ignore bound functions directly on tree which do not have a prototype - // or aren't nodes - if (child.prototype && child.prototype.type) { - child.prototype.typeIndex = ticker++; - } - break; - case "object": - ticker = indexNodeTypes(child, ticker); - break; - } - } - return ticker; - } - - tree.visitor = function(implementation) { - this._implementation = implementation; - this._visitFnCache = []; - - if (!_hasIndexed) { - indexNodeTypes(tree, 1); - _hasIndexed = true; - } - }; - - tree.visitor.prototype = { - visit: function(node) { - if (!node) { - return node; - } - - var nodeTypeIndex = node.typeIndex; - if (!nodeTypeIndex) { - return node; - } - - var visitFnCache = this._visitFnCache, - impl = this._implementation, - aryIndx = nodeTypeIndex << 1, - outAryIndex = aryIndx | 1, - func = visitFnCache[aryIndx], - funcOut = visitFnCache[outAryIndex], - visitArgs = _visitArgs, - fnName; - - visitArgs.visitDeeper = true; - - if (!func) { - fnName = "visit" + node.type; - func = impl[fnName] || _noop; - funcOut = impl[fnName + "Out"] || _noop; - visitFnCache[aryIndx] = func; - visitFnCache[outAryIndex] = funcOut; - } - - if (func !== _noop) { - var newNode = func.call(impl, node, visitArgs); - if (impl.isReplacing) { - node = newNode; - } - } - - if (visitArgs.visitDeeper && node && node.accept) { - node.accept(this); - } - - if (funcOut != _noop) { - funcOut.call(impl, node); - } - - return node; - }, - visitArray: function(nodes, nonReplacing) { - if (!nodes) { - return nodes; - } - - var cnt = nodes.length, i; - - // Non-replacing - if (nonReplacing || !this._implementation.isReplacing) { - for (i = 0; i < cnt; i++) { - this.visit(nodes[i]); - } - return nodes; - } - - // Replacing - var out = []; - for (i = 0; i < cnt; i++) { - var evald = this.visit(nodes[i]); - if (!evald.splice) { - out.push(evald); - } else if (evald.length) { - this.flatten(evald, out); - } - } - return out; - }, - flatten: function(arr, out) { - if (!out) { - out = []; - } - - var cnt, i, item, - nestedCnt, j, nestedItem; - - for (i = 0, cnt = arr.length; i < cnt; i++) { - item = arr[i]; - if (!item.splice) { - out.push(item); - continue; - } - - for (j = 0, nestedCnt = item.length; j < nestedCnt; j++) { - nestedItem = item[j]; - if (!nestedItem.splice) { - out.push(nestedItem); - } else if (nestedItem.length) { - this.flatten(nestedItem, out); - } - } - } - - return out; - } - }; - -})(require('./tree')); -(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode, - inlineCSS = importNode.options.inline; - - if (!importNode.css || inlineCSS) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - - if (importNode.options.multiple) { - env.importMultiple = true; - } - - this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, imported, fullPath) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - - if (imported && !env.importMultiple) { importNode.skip = imported; } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - importNode.importedFilename = fullPath; - if (!inlineCSS && !importNode.skip) { - new(tree.importVisitor)(importVisitor._importer, subFinish, env) - .run(root); - return; - } - } - - subFinish(); - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree')); -(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1], - paths = [], selectors; - - this.contexts.push(paths); - - if (! rulesetNode.root) { - selectors = rulesetNode.selectors; - if (selectors) { - selectors = selectors.filter(function(selector) { return selector.getIsOutput(); }); - rulesetNode.selectors = selectors.length ? selectors : (selectors = null); - if (selectors) { rulesetNode.joinSelectors(paths, context, selectors); } - } - if (!selectors) { rulesetNode.rules = null; } - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree')); -(function (tree) { - tree.toCSSVisitor = function(env) { - this._visitor = new tree.visitor(this); - this._env = env; - }; - - tree.toCSSVisitor.prototype = { - isReplacing: true, - run: function (root) { - return this._visitor.visit(root); - }, - - visitRule: function (ruleNode, visitArgs) { - if (ruleNode.variable) { - return []; - } - return ruleNode; - }, - - visitMixinDefinition: function (mixinNode, visitArgs) { - return []; - }, - - visitExtend: function (extendNode, visitArgs) { - return []; - }, - - visitComment: function (commentNode, visitArgs) { - if (commentNode.isSilent(this._env)) { - return []; - } - return commentNode; - }, - - visitMedia: function(mediaNode, visitArgs) { - mediaNode.accept(this._visitor); - visitArgs.visitDeeper = false; - - if (!mediaNode.rules.length) { - return []; - } - return mediaNode; - }, - - visitDirective: function(directiveNode, visitArgs) { - if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) { - return []; - } - if (directiveNode.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (this.charset) { - if (directiveNode.debugInfo) { - var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n"); - comment.debugInfo = directiveNode.debugInfo; - return this._visitor.visit(comment); - } - return []; - } - this.charset = true; - } - return directiveNode; - }, - - checkPropertiesInRoot: function(rules) { - var ruleNode; - for(var i = 0; i < rules.length; i++) { - ruleNode = rules[i]; - if (ruleNode instanceof tree.Rule && !ruleNode.variable) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null}; - } - } - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var rule, rulesets = []; - if (rulesetNode.firstRoot) { - this.checkPropertiesInRoot(rulesetNode.rules); - } - if (! rulesetNode.root) { - if (rulesetNode.paths) { - rulesetNode.paths = rulesetNode.paths - .filter(function(p) { - var i; - if (p[0].elements[0].combinator.value === ' ') { - p[0].elements[0].combinator = new(tree.Combinator)(''); - } - for(i = 0; i < p.length; i++) { - if (p[i].getIsReferenced() && p[i].getIsOutput()) { - return true; - } - } - return false; - }); - } - - // Compile rules and rulesets - var nodeRules = rulesetNode.rules, nodeRuleCnt = nodeRules ? nodeRules.length : 0; - for (var i = 0; i < nodeRuleCnt; ) { - rule = nodeRules[i]; - if (rule && rule.rules) { - // visit because we are moving them out from being a child - rulesets.push(this._visitor.visit(rule)); - nodeRules.splice(i, 1); - nodeRuleCnt--; - continue; - } - i++; - } - // accept the visitor to remove rules and refactor itself - // then we can decide now whether we want it or not - if (nodeRuleCnt > 0) { - rulesetNode.accept(this._visitor); - } else { - rulesetNode.rules = null; - } - visitArgs.visitDeeper = false; - - nodeRules = rulesetNode.rules; - if (nodeRules) { - this._mergeRules(nodeRules); - nodeRules = rulesetNode.rules; - } - if (nodeRules) { - this._removeDuplicateRules(nodeRules); - nodeRules = rulesetNode.rules; - } - - // now decide whether we keep the ruleset - if (nodeRules && nodeRules.length > 0 && rulesetNode.paths.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } else { - rulesetNode.accept(this._visitor); - visitArgs.visitDeeper = false; - if (rulesetNode.firstRoot || (rulesetNode.rules && rulesetNode.rules.length > 0)) { - rulesets.splice(0, 0, rulesetNode); - } - } - if (rulesets.length === 1) { - return rulesets[0]; - } - return rulesets; - }, - - _removeDuplicateRules: function(rules) { - if (!rules) { return; } - - // remove duplicates - var ruleCache = {}, - ruleList, rule, i; - - for(i = rules.length - 1; i >= 0 ; i--) { - rule = rules[i]; - if (rule instanceof tree.Rule) { - if (!ruleCache[rule.name]) { - ruleCache[rule.name] = rule; - } else { - ruleList = ruleCache[rule.name]; - if (ruleList instanceof tree.Rule) { - ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)]; - } - var ruleCSS = rule.toCSS(this._env); - if (ruleList.indexOf(ruleCSS) !== -1) { - rules.splice(i, 1); - } else { - ruleList.push(ruleCSS); - } - } - } - } - }, - - _mergeRules: function (rules) { - if (!rules) { return; } - - var groups = {}, - parts, - rule, - key; - - for (var i = 0; i < rules.length; i++) { - rule = rules[i]; - - if ((rule instanceof tree.Rule) && rule.merge) { - key = [rule.name, - rule.important ? "!" : ""].join(","); - - if (!groups[key]) { - groups[key] = []; - } else { - rules.splice(i--, 1); - } - - groups[key].push(rule); - } - } - - Object.keys(groups).map(function (k) { - parts = groups[k]; - - if (parts.length > 1) { - rule = parts[0]; - - rule.value = new (tree.Value)(parts.map(function (p) { - return p.value; - })); - } - }); - } - }; - -})(require('./tree')); -(function (tree) { - /*jshint loopfunc:true */ - - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - var rules = rulesetNode.rules, ruleCnt = rules ? rules.length : 0; - for(i = 0; i < ruleCnt; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rules[i]); - rulesetNode.extendOnEveryPath = true; - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - var paths = rulesetNode.paths; - for(i = 0; i < paths.length; i++) { - var selectorPath = paths[i], - selector = selectorPath[selectorPath.length - 1], - selExtendList = selector.extendList; - - extendList = selExtendList ? selExtendList.slice(0).concat(allSelectorsExtendList) - : allSelectorsExtendList; - - if (extendList) { - extendList = extendList.map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - } - - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if( extend.parent_ids.indexOf( targetExtend.object_id ) >= 0 ){ continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parent_ids = newExtend.parent_ids.concat(targetExtend.parent_ids, extend.parent_ids); - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (rulesetNode.extendOnEveryPath) { continue; } - var extendList = selectorPath[selectorPath.length-1].extendList; - if (extendList && extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator === '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - elementValue1 = elementValue1.value; - elementValue2 = elementValue2.value; - if (elementValue1 instanceof tree.Selector) { - if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) { - return false; - } - for(var i = 0; i currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - newElements = selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)); - - if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) { - path[path.length - 1].elements = - path[path.length - 1].elements.concat(newElements); - } else { - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - newElements - )); - } - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.sourceMapOutput = function (options) { - this._css = []; - this._rootNode = options.rootNode; - this._writeSourceMap = options.writeSourceMap; - this._contentsMap = options.contentsMap; - this._contentsIgnoredCharsMap = options.contentsIgnoredCharsMap; - this._sourceMapFilename = options.sourceMapFilename; - this._outputFilename = options.outputFilename; - this._sourceMapURL = options.sourceMapURL; - if (options.sourceMapBasepath) { - this._sourceMapBasepath = options.sourceMapBasepath.replace(/\\/g, '/'); - } - this._sourceMapRootpath = options.sourceMapRootpath; - this._outputSourceFiles = options.outputSourceFiles; - this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator; - - if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') { - this._sourceMapRootpath += '/'; - } - - this._lineNumber = 0; - this._column = 0; - }; - - tree.sourceMapOutput.prototype.normalizeFilename = function(filename) { - filename = filename.replace(/\\/g, '/'); - - if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) { - filename = filename.substring(this._sourceMapBasepath.length); - if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') { - filename = filename.substring(1); - } - } - return (this._sourceMapRootpath || "") + filename; - }; - - tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) { - - //ignore adding empty strings - if (!chunk) { - return; - } - - var lines, - sourceLines, - columns, - sourceColumns, - i; - - if (fileInfo) { - var inputSource = this._contentsMap[fileInfo.filename]; - - // remove vars/banner added to the top of the file - if (this._contentsIgnoredCharsMap[fileInfo.filename]) { - // adjust the index - index -= this._contentsIgnoredCharsMap[fileInfo.filename]; - if (index < 0) { index = 0; } - // adjust the source - inputSource = inputSource.slice(this._contentsIgnoredCharsMap[fileInfo.filename]); - } - inputSource = inputSource.substring(0, index); - sourceLines = inputSource.split("\n"); - sourceColumns = sourceLines[sourceLines.length-1]; - } - - lines = chunk.split("\n"); - columns = lines[lines.length-1]; - - if (fileInfo) { - if (!mapLines) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column}, - original: { line: sourceLines.length, column: sourceColumns.length}, - source: this.normalizeFilename(fileInfo.filename)}); - } else { - for(i = 0; i < lines.length; i++) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0}, - original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0}, - source: this.normalizeFilename(fileInfo.filename)}); - } - } - } - - if (lines.length === 1) { - this._column += columns.length; - } else { - this._lineNumber += lines.length - 1; - this._column = columns.length; - } - - this._css.push(chunk); - }; - - tree.sourceMapOutput.prototype.isEmpty = function() { - return this._css.length === 0; - }; - - tree.sourceMapOutput.prototype.toCSS = function(env) { - this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null }); - - if (this._outputSourceFiles) { - for(var filename in this._contentsMap) { - var source = this._contentsMap[filename]; - if (this._contentsIgnoredCharsMap[filename]) { - source = source.slice(this._contentsIgnoredCharsMap[filename]); - } - this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), source); - } - } - - this._rootNode.genCSS(env, this); - - if (this._css.length > 0) { - var sourceMapURL, - sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); - - if (this._sourceMapURL) { - sourceMapURL = this._sourceMapURL; - } else if (this._sourceMapFilename) { - sourceMapURL = this.normalizeFilename(this._sourceMapFilename); - } - - if (this._writeSourceMap) { - this._writeSourceMap(sourceMapContent); - } else { - sourceMapURL = "data:application/json," + encodeURIComponent(sourceMapContent); - } - - if (sourceMapURL) { - this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */"); - } - } - - return this._css.join(''); - }; - -})(require('./tree')); - -// -// browser.js - client-side engine -// -/*global less, window, document, XMLHttpRequest, location */ - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - (location.port && - location.port.length > 0) || - isFileProtocol ? 'development' - : 'production'); - -var logLevel = { - info: 2, - errors: 1, - none: 0 -}; - -// The amount of logging in the javascript console. -// 2 - Information and errors -// 1 - Errors -// 0 - None -// Defaults to 2 -less.logLevel = typeof(less.logLevel) != 'undefined' ? less.logLevel : logLevel.info; - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - less.tree.functions[func] = less.functions[func]; - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -var typePattern = /^text\/(x-)?less$/; -var cache = null; -var fileCache = {}; - -function log(str, level) { - if (less.env == 'development' && typeof(console) !== 'undefined' && less.logLevel >= level) { - console.log('less: ' + str); - } -} - -function extractId(href) { - return href.replace(/^[a-z-]+:\/+?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function errorConsole(e, rootHref) { - var template = '{line} {content}'; - var filename = e.filename || rootHref; - var errors = []; - var content = (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - " in " + filename + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n' + - errors.join('\n'); - } else if (e.stack) { - content += e.stack; - } - log(content, logLevel.errors); -} - -function createCSS(styles, sheet, lastModified) { - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If this has already been inserted into the DOM, we may need to replace it - var oldCss = document.getElementById(id); - var keepOldCss = false; - - // Create a new stylesheet node for insertion or (if necessary) replacement - var css = document.createElement('style'); - css.setAttribute('type', 'text/css'); - if (sheet.media) { - css.setAttribute('media', sheet.media); - } - css.id = id; - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - css.appendChild(document.createTextNode(styles)); - - // If new contents match contents of oldCss, don't replace oldCss - keepOldCss = (oldCss !== null && oldCss.childNodes.length > 0 && css.childNodes.length > 0 && - oldCss.firstChild.nodeValue === css.firstChild.nodeValue); - } - - var head = document.getElementsByTagName('head')[0]; - - // If there is no oldCss, just append; otherwise, only append if we need - // to replace oldCss with an updated stylesheet - if (oldCss === null || keepOldCss === false) { - var nextEl = sheet && sheet.nextSibling || null; - if (nextEl) { - nextEl.parentNode.insertBefore(css, nextEl); - } else { - head.appendChild(css); - } - } - if (oldCss && keepOldCss === false) { - oldCss.parentNode.removeChild(oldCss); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.', logLevel.info); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save', logLevel.errors); - } - } -} - -function errorHTML(e, rootHref) { - var id = 'less-error-message:' + extractId(rootHref || ""); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, errors = []; - var filename = e.filename || rootHref; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - '

    ' + '

    in ' + filenameNoPath + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - '
      ' + errors.join('') + '
    '; - } else if (e.stack) { - content += '
    ' + e.stack.split('\n').slice(1).join('
    '); - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #dd6666;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.line {', - 'color: #ff0000;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); - - if (less.env == 'development') { - timer = setInterval(function () { - if (document.body) { - if (document.getElementById(id)) { - document.body.replaceChild(elem, document.getElementById(id)); - } else { - document.body.insertBefore(elem, document.body.firstChild); - } - clearInterval(timer); - } - }, 10); - } -} - -function error(e, rootHref) { - if (!less.errorReporting || less.errorReporting === "html") { - errorHTML(e, rootHref); - } else if (less.errorReporting === "console") { - errorConsole(e, rootHref); - } else if (typeof less.errorReporting === 'function') { - less.errorReporting("add", e, rootHref); - } -} - -function removeErrorHTML(path) { - var node = document.getElementById('less-error-message:' + extractId(path)); - if (node) { - node.parentNode.removeChild(node); - } -} - -function removeErrorConsole(path) { - //no action -} - -function removeError(path) { - if (!less.errorReporting || less.errorReporting === "html") { - removeErrorHTML(path); - } else if (less.errorReporting === "console") { - removeErrorConsole(path); - } else if (typeof less.errorReporting === 'function') { - less.errorReporting("remove", path); - } -} - -function loadStyles(modifyVars) { - var styles = document.getElementsByTagName('style'), - style; - for (var i = 0; i < styles.length; i++) { - style = styles[i]; - if (style.type.match(typePattern)) { - var env = new less.tree.parseEnv(less), - lessText = style.innerHTML || ''; - env.filename = document.location.href.replace(/#.*$/, ''); - - if (modifyVars || less.globalVars) { - env.useFileCache = true; - } - - /*jshint loopfunc:true */ - // use closure to store current value of i - var callback = (function(style) { - return function (e, cssAST) { - if (e) { - return error(e, "inline"); - } - var css = cssAST.toCSS(less); - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }; - })(style); - new(less.Parser)(env).parse(lessText, callback, {globalVars: less.globalVars, modifyVars: modifyVars}); - } - } -} - -function extractUrlParts(url, baseUrl) { - // urlParts[1] = protocol&hostname || / - // urlParts[2] = / if path relative to host base - // urlParts[3] = directories - // urlParts[4] = filename - // urlParts[5] = parameters - - var urlPartsRegex = /^((?:[a-z-]+:)?\/+?(?:[^\/\?#]*\/)|([\/\\]))?((?:[^\/\\\?#]*[\/\\])*)([^\/\\\?#]*)([#\?].*)?$/i, - urlParts = url.match(urlPartsRegex), - returner = {}, directories = [], i, baseUrlParts; 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(match = tok.exec(current))) { - return null; - } - - length = match[0].length; - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - - // Specialization of $(tok) - function $re(tok) { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - var m = tok.exec(current); - if (!m) { - return null; - } - - skipWhitespace(m[0].length); - if(typeof m === "string") { - return m; - } - - return m.length === 1 ? m[0] : m; - } - - var _$re = $re; - - // Specialization of $(tok) - function $char(tok) { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - curr = i - currentPos, - endIndex = i + current.length - curr, - mem = (i += length), - inp = input, - c; - - for (; i < endIndex; i++) { - c = inp.charCodeAt(i); - if (c > 32) { - break; - } - - if ((c !== 32) && (c !== 10) && (c !== 9) && (c !== 13)) { - break; - } - } - - current = current.slice(length + i - mem + curr); - currentPos = i; - - if (!current.length && (j < chunks.length - 1)) { - current = chunks[++j]; - } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - // some older browsers return typeof 'function' for RegExp - var result = (Object.prototype.toString.call(arg) === '[object Function]') ? arg.call(parsers) : $(arg); - if (result) { - return result; - } - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } - - // Specialization of expect() - function expectChar(arg, msg) { - if (input.charAt(i) === arg) { - skipWhitespace(1); - return arg; - } - error(msg || "expected '" + arg + "' got '" + input.charAt(i) + "'"); - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - return tok.test(current); - } - } - - // Specialization of peek() - function peekChar(tok) { - return input.charAt(i) === tok; - } - - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, inputStream) { - var n = index + 1, - line = null, - column = -1; - - while (--n >= 0 && inputStream.charAt(n) !== '\n') { - column++; - } - - if (typeof index === 'number') { - line = (inputStream.slice(0, index).match(/\n/g) || "").length; - } - - return { - line: line, - column: column - }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - callLine = e.call && getLocation(e.call, input).line, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = callLine + 1; - this.callExtract = lines[callLine]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // @param str A string containing 'less' markup - // @param callback call `callback` when done. - // @param [additionalData] An optional map which can contains vars - a map (key, value) of variables to apply - // - parse: function (str, callback, additionalData) { - var root, line, lines, error = null, globalVars, modifyVars, preText = ""; - - i = j = currentPos = furthest = 0; - - globalVars = (additionalData && additionalData.globalVars) ? less.Parser.serializeVars(additionalData.globalVars) + '\n' : ''; - modifyVars = (additionalData && additionalData.modifyVars) ? '\n' + less.Parser.serializeVars(additionalData.modifyVars) : ''; - - if (globalVars || (additionalData && additionalData.banner)) { - preText = ((additionalData && additionalData.banner) ? additionalData.banner : "") + globalVars; - parser.imports.contentsIgnoredChars[env.currentFileInfo.filename] = preText.length; - } - - str = str.replace(/\r\n/g, '\n'); - // Remove potential UTF Byte Order Mark - input = str = preText + str.replace(/^\uFEFF/, '') + modifyVars; - parser.imports.contents[env.currentFileInfo.filename] = str; - - // Split the input into chunks. - chunks = (function (input) { - var len = input.length, level = 0, parenLevel = 0, - lastOpening, lastClosing, lastMultiComment, lastMultiCommentEndBrace, - chunks = [], emitFrom = 0, - parserCurrentIndex, currentChunkStartIndex, cc, cc2, matched; - - function fail(msg, index) { - error = new(LessError)({ - index: index || parserCurrentIndex, - type: 'Parse', - message: msg, - filename: env.currentFileInfo.filename - }, env); - } - - function emitChunk(force) { - var len = parserCurrentIndex - emitFrom; - if (((len < 512) && !force) || !len) { - return; - } - chunks.push(input.slice(emitFrom, parserCurrentIndex + 1)); - emitFrom = parserCurrentIndex + 1; - } - - for (parserCurrentIndex = 0; parserCurrentIndex < len; parserCurrentIndex++) { - cc = input.charCodeAt(parserCurrentIndex); - if (((cc >= 97) && (cc <= 122)) || (cc < 34)) { - // a-z or whitespace - continue; - } - - switch (cc) { - case 40: // ( - parenLevel++; continue; - case 41: // ) - parenLevel--; continue; - case 59: // ; - if (!parenLevel) { emitChunk(); } - continue; - case 123: // { - level++; lastOpening = parserCurrentIndex; continue; - case 125: // } - level--; lastClosing = parserCurrentIndex; - if (!level) { emitChunk(); } - continue; - case 92: // \ - if (parserCurrentIndex < len - 1) { parserCurrentIndex++; continue; } - return fail("unescaped `\\`"); - case 34: - case 39: - case 96: // ", ' and ` - matched = 0; - currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 1; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 > 96) { continue; } - if (cc2 == cc) { matched = 1; break; } - if (cc2 == 92) { // \ - if (parserCurrentIndex == len - 1) { - return fail("unescaped `\\`"); - } - parserCurrentIndex++; - } - } - if (matched) { continue; } - return fail("unmatched `" + String.fromCharCode(cc) + "`", currentChunkStartIndex); - case 47: // /, check for comment - if (parenLevel || (parserCurrentIndex == len - 1)) { continue; } - cc2 = input.charCodeAt(parserCurrentIndex + 1); - if (cc2 == 47) { - // //, find lnfeed - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if ((cc2 <= 13) && ((cc2 == 10) || (cc2 == 13))) { break; } - } - } else if (cc2 == 42) { - // /*, find */ - lastMultiComment = currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len - 1; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 == 125) { lastMultiCommentEndBrace = parserCurrentIndex; } - if (cc2 != 42) { continue; } - if (input.charCodeAt(parserCurrentIndex + 1) == 47) { break; } - } - if (parserCurrentIndex == len - 1) { - return fail("missing closing `*/`", currentChunkStartIndex); - } - } - continue; - case 42: // *, check for unmatched */ - if ((parserCurrentIndex < len - 1) && (input.charCodeAt(parserCurrentIndex + 1) == 47)) { - return fail("unmatched `/*`"); - } - continue; - } - } - - if (level !== 0) { - if (level > 0) { - if ((lastMultiComment > lastOpening) && (lastMultiCommentEndBrace > lastMultiComment)) { - return fail("missing closing `}` or `*/`", lastOpening); - } else { - return fail("missing closing `}`", lastOpening); - } - } - return fail("missing opening `{`", lastClosing); - } else if (parenLevel !== 0) { - return fail((parenLevel > 0) ? "missing closing `)`" : "missing opening `(`"); - } - - emitChunk(true); - return chunks; - })(str); - - if (error) { - return callback(new(LessError)(error, env)); - } - - current = chunks[0]; - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)(null, this.parsers.primary()); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - return function (options, variables) { - options = options || {}; - var evaldRoot, - css, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, null, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var preEvalVisitors = [], - visitors = [ - new(tree.joinSelectorVisitor)(), - new(tree.processExtendsVisitor)(), - new(tree.toCSSVisitor)({compress: Boolean(options.compress)}) - ], i, root = this; - - if (options.plugins) { - for(i =0; i < options.plugins.length; i++) { - if (options.plugins[i].isPreEvalVisitor) { - preEvalVisitors.push(options.plugins[i]); - } else { - if (options.plugins[i].isPreVisitor) { - visitors.splice(0, 0, options.plugins[i]); - } else { - visitors.push(options.plugins[i]); - } - } - } - } - - for(i = 0; i < preEvalVisitors.length; i++) { - preEvalVisitors[i].run(root); - } - - evaldRoot = evaluate.call(root, evalEnv); - - for(i = 0; i < visitors.length; i++) { - visitors[i].run(evaldRoot); - } - - if (options.sourceMap) { - evaldRoot = new tree.sourceMapOutput( - { - contentsIgnoredCharsMap: parser.imports.contentsIgnoredChars, - writeSourceMap: options.writeSourceMap, - rootNode: evaldRoot, - contentsMap: parser.imports.contents, - sourceMapFilename: options.sourceMapFilename, - sourceMapURL: options.sourceMapURL, - outputFilename: options.sourceMapOutputFilename, - sourceMapBasepath: options.sourceMapBasepath, - sourceMapRootpath: options.sourceMapRootpath, - outputSourceFiles: options.outputSourceFiles, - sourceMapGenerator: options.sourceMapGenerator - }); - } - - css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits)}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.cleancss && less.mode === 'node') { - var CleanCSS = require('clean-css'), - cleancssOptions = options.cleancssOptions || {}; - - if (cleancssOptions.keepSpecialComments === undefined) { - cleancssOptions.keepSpecialComments = "*"; - } - cleancssOptions.processImport = false; - cleancssOptions.noRebase = true; - if (cleancssOptions.noAdvanced === undefined) { - cleancssOptions.noAdvanced = true; - } - - return new CleanCSS(cleancssOptions).minify(css); - } else if (options.compress) { - return css.replace(/(^(\s)+)|((\s)+$)/g, ""); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - var loc = getLocation(i, input); - lines = input.split('\n'); - line = loc.line + 1; - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: loc.column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - return callback(e); - } - else { - return callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - return finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: parsers = { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var mixin = this.mixin, $re = _$re, root = [], node; - - while (current) - { - node = this.extendRule() || mixin.definition() || this.rule() || this.ruleset() || - mixin.call() || this.comment() || this.directive(); - if (node) { - root.push(node); - } else { - if (!($re(/^[\s\n]+/) || $re(/^;+/))) { - break; - } - } - } - - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') { return; } - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($re(/^\/\/.*/), true, i, env.currentFileInfo); - } - comment = $re(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/); - if (comment) { - return new(tree.Comment)(comment, false, i, env.currentFileInfo); - } - }, - - comments: function () { - var comment, comments = []; - - while(true) { - comment = this.comment(); - if (!comment) { - break; - } - comments.push(comment); - } - - return comments; - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; } - - if (e) { $char('~'); } - - str = $re(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/); - if (str) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - k = $re(/^[_A-Za-z-][_A-Za-z0-9-]*/); - if (k) { - var color = tree.Color.fromKeyword(k); - if (color) { - return color; - } - return new(tree.Keyword)(k); - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(current); - if (!name) { return; } - - name = name[1]; - nameLC = name.toLowerCase(); - if (nameLC === 'url') { - return null; - } - - i += name.length; - - if (nameLC === 'alpha') { - alpha_ret = parsers.alpha(); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $char('('); // Parse the '(' and consume whitespace. - - args = this.arguments(); - - if (! $char(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (true) { - arg = this.assignment() || parsers.expression(); - if (!arg) { - break; - } - args.push(arg); - if (! $char(',')) { - break; - } - } - return args; - }, - literal: function () { - return this.dimension() || - this.color() || - this.quoted() || - this.unicodeDescriptor(); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - key = $re(/^\w+(?=\s?=)/i); - if (!key) { - return; - } - if (!$char('=')) { - return; - } - value = parsers.entity(); - if (value) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$re(/^url\(/)) { - return; - } - - value = this.quoted() || this.variable() || - $re(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expectChar(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $re(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var curly, index = i; - - if (input.charAt(i) === '@' && (curly = $re(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $re(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) { - return; - } - - value = $re(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/); - if (value) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - ud = $re(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/); - if (ud) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '`') { return; } - if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) { - error("You are using JavaScript, which has been disabled."); - } - - if (e) { $char('~'); } - - str = $re(/^`([^`]*)`/); - if (str) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*:/))) { return name[1]; } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList, extend; - - if (!(isRule ? $re(/^&:extend\(/) : $re(/^:extend\(/))) { return; } - - do { - option = null; - elements = null; - while (! (option = $re(/^(all)(?=\s*(\)|,))/))) { - e = this.element(); - if (!e) { break; } - if (elements) { elements.push(e); } else { elements = [ e ]; } - } - - option = option && option[1]; - - extend = new(tree.Extend)(new(tree.Selector)(elements), option, index); - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - - } while($char(",")); - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var s = input.charAt(i), important = false, index = i, elemIndex, - elements, elem, e, c, args; - - if (s !== '.' && s !== '#') { return; } - - save(); // stop us absorbing part of an invalid selector - - while (true) { - elemIndex = i; - e = $re(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/); - if (!e) { - break; - } - elem = new(tree.Element)(c, e, elemIndex, env.currentFileInfo); - if (elements) { elements.push(elem); } else { elements = [ elem ]; } - c = $char('>'); - } - if ($char('(')) { - args = this.args(true).args; - expectChar(')'); - } - - if (parsers.important()) { - important = true; - } - - if (elements && ($char(';') || peekChar('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - - restore(); - }, - args: function (isCall) { - var parsers = parser.parsers, entities = parsers.entities, - returner = { args:null, variadic: false }, - expressions = [], argsSemiColon = [], argsComma = [], - isSemiColonSeperated, expressionContainsNamed, name, nameLoop, value, arg; - - while (true) { - if (isCall) { - arg = parsers.expression(); - } else { - parsers.comments(); - if (input.charAt(i) === '.' && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = entities.variable() || entities.literal() || entities.keyword(); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value.length == 1) { - val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($char(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(parsers.expression); - nameLoop = (name = val.name); - } else if (!isCall && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($char(',')) { - continue; - } - - if ($char(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) { - return; - } - - save(); - - match = $re(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/); - if (match) { - name = match[1]; - - var argInfo = this.args(false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$char(')')) { - furthest = i; - restore(); - } - - parsers.comments(); - - if ($re(/^when/)) { // Guard - cond = expect(parsers.conditions, 'expected condition'); - } - - ruleset = parsers.block(); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - var entities = this.entities; - - return entities.literal() || entities.variable() || entities.url() || - entities.call() || entities.keyword() || entities.javascript() || - this.comment(); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $char(';') || peekChar('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $re(/^\(opacity=/i)) { return; } - value = $re(/^\d+/) || this.entities.variable(); - if (value) { - expectChar(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, c, v, index = i; - - c = this.combinator(); - - e = $re(/^(?:\d+\.\d+|\d+)%/) || $re(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $char('*') || $char('&') || this.attribute() || $re(/^\([^()@]+\)/) || $re(/^[\.#](?=@)/) || - this.entities.variableCurly(); - - if (! e) { - if ($char('(')) { - if ((v = this.selector()) && $char(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, index, env.currentFileInfo); } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|' || c === '^') { - i++; - if (input.charAt(i) === '^') { - c = '^^'; - i++; - } - while (isWhitespace(input, i)) { i++; } - return new(tree.Combinator)(c); - } else if (isWhitespace(input, i - 1)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - // - // A CSS selector (see selector below) - // with less extensions e.g. the ability to extend and guard - // - lessSelector: function () { - return this.selector(true); - }, - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function (isLess) { - var index = i, $re = _$re, elements, extendList, c, e, extend, when, condition; - - while ((isLess && (extend = this.extend())) || (isLess && (when = $re(/^when/))) || (e = this.element())) { - if (when) { - condition = expect(this.conditions, 'expected condition'); - } else if (condition) { - error("CSS guard can only be used at the end of selector"); - } else if (extend) { - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - } else { - if (extendList) { error("Extend can only be used at the end of selector"); } - c = input.charAt(i); - if (elements) { elements.push(e); } else { elements = [ e ]; } - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { - break; - } - } - - if (elements) { return new(tree.Selector)(elements, extendList, condition, index, env.currentFileInfo); } - if (extendList) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - if (! $char('[')) { return; } - - var entities = this.entities, - key, val, op; - - if (!(key = entities.variableCurly())) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - op = $re(/^[|~*$^]?=/); - if (op) { - val = entities.quoted() || $re(/^[0-9]+%/) || $re(/^[\w-]+/) || entities.variableCurly(); - } - - expectChar(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($char('{') && (content = this.primary()) && $char('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors, s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - while (true) { - s = this.lessSelector(); - if (!s) { - break; - } - if (selectors) { selectors.push(s); } else { selectors = [ s ]; } - this.comments(); - if (s.condition && selectors.length > 1) { - error("Guards are only currently allowed on a single selector."); - } - if (! $char(',')) { break; } - if (s.condition) { - error("Guards are only currently allowed on a single selector."); - } - this.comments(); - } - - if (selectors && (rules = this.block())) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) { - ruleset.debugInfo = debugInfo; - } - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, c = input.charAt(i), important, merge = false; - save(); - - if (c === '.' || c === '#' || c === '&') { return; } - - name = this.variable() || this.ruleProperty(); - if (name) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || (name.charAt && (name.charAt(0) === '@'))) ? - (this.value() || this.anonymousValue()) : - (this.anonymousValue() || this.value()); - - important = this.important(); - - // a name returned by this.ruleProperty() is always an array of the form: - // ["", "string-1", ..., "string-n", ""] or ["", "string-1", ..., "string-n", "+"] - merge = name.pop && (name.pop() === "+"); - - if (value && this.end()) { - return new (tree.Rule)(name, value, important, merge, memo, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } - }, - anonymousValue: function () { - var match; - match = /^([^@+\/'"*`(;{}-]*);/.exec(current); - if (match) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $re(/^@import?\s+/); - - var options = (dir ? this.importOptions() : null) || {}; - - if (dir && (path = this.entities.quoted() || this.entities.url())) { - features = this.mediaFeatures(); - if ($char(';')) { - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $char('(')) { return null; } - do { - o = this.importOption(); - if (o) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $char(',')) { break; } - } - } while (o); - expectChar(')'); - return options; - }, - - importOption: function() { - var opt = $re(/^(less|css|multiple|once|inline|reference)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var entities = this.entities, nodes = [], e, p; - do { - e = entities.keyword() || entities.variable(); - if (e) { - nodes.push(e); - } else if ($char('(')) { - p = this.property(); - e = this.value(); - if ($char(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null; } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var entities = this.entities, features = [], e; - do { - e = this.mediaFeature(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } else { - e = entities.variable(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - if ($re(/^@media/)) { - features = this.mediaFeatures(); - - rules = this.block(); - if (rules) { - media = new(tree.Media)(rules, features, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - media.debugInfo = debugInfo; - } - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var index = i, name, value, rules, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression, identifier; - - if (input.charAt(i) !== '@') { return; } - - value = this['import']() || this.media(); - if (value) { - return value; - } - - save(); - - name = $re(/^@[a-z-]+/); - - if (!name) { return; } - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@host": - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - identifier = ($re(/^[^{]+/) || '').trim(); - if (identifier) { - name += " " + identifier; - } - } - - if (hasBlock) { - rules = this.block(); - if (rules) { - return new(tree.Directive)(name, rules, index, env.currentFileInfo); - } - } else { - value = hasExpression ? this.expression() : this.entity(); - if (value && $char(';')) { - var directive = new(tree.Directive)(name, value, index, env.currentFileInfo); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = []; - - do { - e = this.expression(); - if (e) { - expressions.push(e); - if (! $char(',')) { break; } - } - } while(e); - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $re(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($char('(')) { - a = this.addition(); - if (a) { - e = new(tree.Expression)([a]); - expectChar(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced; - m = this.operand(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - if (peek(/^\/[*\/]/)) { - break; - } - op = $char('/') || $char('*'); - - if (!op) { break; } - - a = this.operand(); - - if (!a) { break; } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - m = this.multiplication(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - op = $re(/^[-+]\s+/) || (!isSpaced && ($char('+') || $char('-'))); - if (!op) { - break; - } - a = this.multiplication(); - if (!a) { - break; - } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - a = this.condition(); - if (a) { - while (true) { - if (!peek(/^,\s*(not\s*)?\(/) || !$char(',')) { - break; - } - b = this.condition(); - if (!b) { - break; - } - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var entities = this.entities, index = i, negate = false, - a, b, c, op; - - if ($re(/^not/)) { negate = true; } - expectChar('('); - a = this.addition() || entities.keyword() || entities.quoted(); - if (a) { - op = $re(/^(?:>=|<=|=<|[<=>])/); - if (op) { - b = this.addition() || entities.keyword() || entities.quoted(); - if (b) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expectChar(')'); - return $re(/^and/) ? new(tree.Condition)('and', c, this.condition()) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var entities = this.entities, - p = input.charAt(i + 1), negate; - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $char('-'); } - var o = this.sub() || entities.dimension() || - entities.color() || entities.variable() || - entities.call(); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var entities = [], e, delim; - - do { - e = this.addition() || this.entity(); - if (e) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/)) { - delim = $char('/'); - if (delim) { - entities.push(new(tree.Anonymous)(delim)); - } - } - } - } while (e); - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name = $re(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/); - if (name) { - return name[1]; - } - }, - ruleProperty: function () { - var c = current, name = [], index = [], length = 0; - - function match(re) { - var a = re.exec(c); - if (a) { - index.push(i + length); - length += a[0].length; - c = c.slice(a[1].length); - return name.push(a[1]); - } - } - - match(/^(\*?)/); - while (match(/^((?:[\w-]+)|(?:@\{[\w-]+\}))/)); // ! - if ((name.length > 1) && match(/^\s*(\+?)\s*:/)) { - // at last, we have the complete match now. move forward, - // convert @{var}s to tree.Variable(s) and return: - skipWhitespace(length); - for (var k in name) { - if (name[k].charAt(0) === '@') { - name[k] = new tree.Variable('@' + name[k].slice(2, -1), - index[k], env.currentFileInfo); - } - } - return name; - } - } - } - }; - return parser; -}; -less.Parser.serializeVars = function(vars) { - var s = ''; - - for (var name in vars) { - if (Object.hasOwnProperty.call(vars, name)) { - var value = vars[name]; - s += ((name[0] === '@') ? '' : '@') + name +': '+ value + - ((('' + value).slice(-1) === ';') ? '' : ';'); - } - } - - return s; -}; -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 255); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; } - else if (h * 2 < 1) { return m2; } - else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; } - else { return m1; } - } - - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - // filter: saturate(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if (color.luma() < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - /*jshint loopfunc:true */ - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - if(!(val instanceof tree.Dimension)) { - throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") }; - } - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return _math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _minmax: function (isMin, args) { - args = Array.prototype.slice.call(args); - switch(args.length) { - case 0: throw { type: "Argument", message: "one or more arguments required" }; - case 1: return args[0]; - } - var i, j, current, currentUnified, referenceUnified, unit, - order = [], // elems only contains original argument values. - values = {}; // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - for (i = 0; i < args.length; i++) { - current = args[i]; - if (!(current instanceof tree.Dimension)) { - order.push(current); - continue; - } - currentUnified = current.unify(); - unit = currentUnified.unit.toString(); - j = values[unit]; - if (j === undefined) { - values[unit] = order.length; - order.push(current); - continue; - } - referenceUnified = order[j].unify(); - if ( isMin && currentUnified.value < referenceUnified.value || - !isMin && currentUnified.value > referenceUnified.value) { - order[j] = current; - } - } - if (order.length == 1) { - return order[0]; - } - args = order.map(function (a) { return a.toCSS(this.env); }) - .join(this.env.compress ? "," : ", "); - return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")"); - }, - min: function () { - return this._minmax(true, arguments); - }, - max: function () { - return this._minmax(false, arguments); - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - var colorCandidate = n.value, - returnColor; - returnColor = tree.Color.fromKeyword(colorCandidate); - if (returnColor) { - return returnColor; - } - if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) { - return new(tree.Color)(colorCandidate.slice(1)); - } - throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" }; - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - return Array.isArray(values.value) - ? values.value[index] : Array(values)[index]; - }, - length: function(values) { - var n = Array.isArray(values.value) ? values.value.length : 1; - return new tree.Dimension(n); - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require("fs"), - path = require("path"), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) { mimetype += ';base64'; } - } - else { - useBase64 = /;base64$/.test(mimetype); - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "\"data:" + mimetype + ',' + buf + "\""; - return new(tree.URL)(new(tree.Anonymous)(uri)); - }, - - "svg-gradient": function(direction) { - - function throwArgumentDescriptor() { - throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" }; - } - - if (arguments.length < 3) { - throwArgumentDescriptor(); - } - var stops = Array.prototype.slice.call(arguments, 1), - gradientDirectionSvg, - gradientType = "linear", - rectangleDimension = 'x="0" y="0" width="1" height="1"', - useBase64 = true, - renderEnv = {compress: false}, - returner, - directionValue = direction.toCSS(renderEnv), - i, color, position, positionValue, alpha; - - switch (directionValue) { - case "to bottom": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - gradientType = "radial"; - gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" }; - } - returner = '' + - '' + - '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>'; - - for (i = 0; i < stops.length; i+= 1) { - if (stops[i].value) { - color = stops[i].value[0]; - position = stops[i].value[1]; - } else { - color = stops[i]; - position = undefined; - } - - if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) { - throwArgumentDescriptor(); - } - positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%"; - alpha = color.alpha; - returner += ''; - } - returner += '' + - ''; - - if (useBase64) { - // only works in node, needs interface to what is supported in environment - try { - returner = new Buffer(returner).toString('base64'); - } catch(e) { - useBase64 = false; - } - } - - returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'"; - return new(tree.URL)(new(tree.Anonymous)(returner)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -// Math - -var mathFunctions = { - // name, unit - ceil: null, - floor: null, - sqrt: null, - abs: null, - tan: "", - sin: "", - cos: "", - atan: "rad", - asin: "rad", - acos: "rad" -}; - -function _math(fn, unit, n) { - if (!(n instanceof tree.Dimension)) { - throw { type: "Argument", message: "argument must be a number" }; - } - if (unit == null) { - unit = n.unit; - } else { - n = n.unify(); - } - return new(tree.Dimension)(fn(parseFloat(n.value)), unit); -} - -// ~ End of Math - -// Color Blending -// ref: http://www.w3.org/TR/compositing-1 - -function colorBlend(mode, color1, color2) { - var ab = color1.alpha, cb, // backdrop - as = color2.alpha, cs, // source - ar, cr, r = []; // result - - ar = as + ab * (1 - as); - for (var i = 0; i < 3; i++) { - cb = color1.rgb[i] / 255; - cs = color2.rgb[i] / 255; - cr = mode(cb, cs); - if (ar) { - cr = (as * cs + ab * (cb - - as * (cb + cs - cr))) / ar; - } - r[i] = cr * 255; - } - - return new(tree.Color)(r, ar); -} - -var colorBlendMode = { - multiply: function(cb, cs) { - return cb * cs; - }, - screen: function(cb, cs) { - return cb + cs - cb * cs; - }, - overlay: function(cb, cs) { - cb *= 2; - return (cb <= 1) - ? colorBlendMode.multiply(cb, cs) - : colorBlendMode.screen(cb - 1, cs); - }, - softlight: function(cb, cs) { - var d = 1, e = cb; - if (cs > 0.5) { - e = 1; - d = (cb > 0.25) ? Math.sqrt(cb) - : ((16 * cb - 12) * cb + 4) * cb; - } - return cb - (1 - 2 * cs) * e * (d - cb); - }, - hardlight: function(cb, cs) { - return colorBlendMode.overlay(cs, cb); - }, - difference: function(cb, cs) { - return Math.abs(cb - cs); - }, - exclusion: function(cb, cs) { - return cb + cs - 2 * cb * cs; - }, - - // non-w3c functions: - average: function(cb, cs) { - return (cb + cs) / 2; - }, - negation: function(cb, cs) { - return 1 - Math.abs(cb + cs - 1); - } -}; - -// ~ End of Color Blending - -tree.defaultFunc = { - eval: function () { - var v = this.value_, e = this.error_; - if (e) { - throw e; - } - if (v != null) { - return v ? tree.True : tree.False; - } - }, - value: function (v) { - this.value_ = v; - }, - error: function (e) { - this.error_ = e; - }, - reset: function () { - this.value_ = this.error_ = null; - } -}; - -function initFunctions() { - var f, tf = tree.functions; - - // math - for (f in mathFunctions) { - if (mathFunctions.hasOwnProperty(f)) { - tf[f] = _math.bind(null, Math[f], mathFunctions[f]); - } - } - - // color blending - for (f in colorBlendMode) { - if (colorBlendMode.hasOwnProperty(f)) { - tf[f] = colorBlend.bind(null, colorBlendMode[f]); - } - } - - // default - f = tree.defaultFunc; - tf["default"] = f.eval.bind(f); - -} initFunctions(); - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); - -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); - -(function (tree) { - -tree.debugInfo = function(env, ctx, lineSeperator) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:/\\])/g, function (a) { - if (a == '\\') { - a = '\/'; - } - return '\\' + a; - }) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - r = fun.call(obj, obj[i]); - if (r) { return r; } - } - return null; -}; - -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false); }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -tree.toCSS = function (env) { - var strs = []; - this.genCSS(env, { - add: function(chunk, fileInfo, index) { - strs.push(chunk); - }, - isEmpty: function () { - return strs.length === 0; - } - }); - return strs.join(''); -}; - -tree.outputRuleset = function (env, output, rules) { - var ruleCnt = rules.length, i; - env.tabLevel = (env.tabLevel | 0) + 1; - - // Compressed - if (env.compress) { - output.add('{'); - for (i = 0; i < ruleCnt; i++) { - rules[i].genCSS(env, output); - } - output.add('}'); - env.tabLevel--; - return; - } - - // Non-compressed - var tabSetStr = '\n' + Array(env.tabLevel).join(" "), tabRuleStr = tabSetStr + " "; - if (!ruleCnt) { - output.add(" {" + tabSetStr + '}'); - } else { - output.add(" {" + tabRuleStr); - rules[0].genCSS(env, output); - for (i = 1; i < ruleCnt; i++) { - output.add(tabRuleStr); - rules[i].genCSS(env, output); - } - output.add(tabSetStr + '}'); - } - - env.tabLevel--; -}; - -})(require('./tree')); - -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } - return this; - }, - genCSS: function (env, output) { - output.add("alpha(opacity="); - - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - - output.add(")"); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Anonymous = function (string, index, currentFileInfo, mapLines) { - this.value = string.value || string; - this.index = index; - this.mapLines = mapLines; - this.currentFileInfo = currentFileInfo; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - eval: function () { - return new tree.Anonymous(this.value, this.index, this.currentFileInfo, this.mapLines); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - }, - genCSS: function (env, output) { - output.add(this.value, this.currentFileInfo, this.index, this.mapLines); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - }, - genCSS: function (env, output) { - output.add(this.key + '='); - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - if (this.args) { - this.args = visitor.visitArray(this.args); - } - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - return new tree.Call(this.name, args, this.index, this.currentFileInfo); - }, - - genCSS: function (env, output) { - output.add(this.name + "(", this.currentFileInfo, this.index); - - for(var i = 0; i < this.args.length; i++) { - this.args[i].genCSS(env, output); - if (i + 1 < this.args.length) { - output.add(", "); - } - } - - output.add(")"); - }, - - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; - -var transparentKeyword = "transparent"; - -tree.Color.prototype = { - type: "Color", - eval: function () { return this; }, - luma: function () { return (0.2126 * this.rgb[0] / 255) + (0.7152 * this.rgb[1] / 255) + (0.0722 * this.rgb[2] / 255); }, - - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress; - - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - if (this.alpha < 1) { - if (this.alpha === 0 && this.isTransparentKeyword) { - return transparentKeyword; - } - return "rgba(" + this.rgb.map(function (c) { - return clamp(Math.round(c), 255); - }).concat(clamp(this.alpha, 1)) - .join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.toRGB(); - - if (compress) { - var splitcolor = color.split(''); - - // Convert color to short format - if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) { - color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5]; - } - } - - return color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var rgb = []; - var alpha = this.alpha * (1 - other.alpha) + other.alpha; - for (var c = 0; c < 3; c++) { - rgb[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(rgb, alpha); - }, - - toRGB: function () { - return toHex(this.rgb); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - return toHex([this.alpha * 255].concat(this.rgb)); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - -tree.Color.fromKeyword = function(keyword) { - if (tree.colors.hasOwnProperty(keyword)) { - // detect named color - return new(tree.Color)(tree.colors[keyword].slice(1)); - } - if (keyword === transparentKeyword) { - var transparent = new(tree.Color)([0, 0, 0], 0); - transparent.isTransparentKeyword = true; - return transparent; - } -}; - -function toHex(v) { - return '#' + v.map(function (c) { - c = clamp(Math.round(c), 255); - return (c < 16 ? '0' : '') + c.toString(16); - }).join(''); -} - -function clamp(v, max) { - return Math.min(Math.max(v, 0), max); -} - -})(require('../tree')); - -(function (tree) { - -tree.Comment = function (value, silent, index, currentFileInfo) { - this.value = value; - this.silent = !!silent; - this.currentFileInfo = currentFileInfo; -}; -tree.Comment.prototype = { - type: "Comment", - genCSS: function (env, output) { - if (this.debugInfo) { - output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index); - } - output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n - }, - toCSS: tree.toCSS, - isSilent: function(env) { - var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced), - isCompressed = env.compress && !this.value.match(/^\/\*!/); - return this.silent || isReference || isCompressed; - }, - eval: function () { return this; }, - markReferenced: function () { - this.isReferenced = true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<' || op === '<='; - case 0: return op === '=' || op === '>=' || op === '=<' || op === '<='; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); - -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - genCSS: function (env, output) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = this.value, - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && this.unit.isLength()) { - output.add(strValue); - return; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - output.add(strValue); - this.unit.genCSS(env, output); - }, - toCSS: tree.toCSS, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - /*jshint noempty:false */ - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a = this.unify(), b = other.unify(), - aValue = a.value, bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - if (!b.unit.isEmpty() && a.unit.compare(b.unit) !== 0) { - return -1; - } - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'm', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, targetUnit, derivedConversions = {}, applyUnit; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - applyUnit = function (atomicUnit, denominator) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(applyUnit); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - genCSS: function (env, output) { - if (this.numerator.length >= 1) { - output.add(this.numerator[0]); - } else - if (this.denominator.length >= 1) { - output.add(this.denominator[0]); - } else - if ((!env || !env.strictUnits) && this.backupUnit) { - output.add(this.backupUnit); - } - }, - toCSS: tree.toCSS, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isLength: function () { - return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/)); - }, - - isEmpty: function () { - return this.numerator.length === 0 && this.denominator.length === 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length === 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, result = {}, mapUnit; - - mapUnit = function (atomicUnit) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }; - - for (var groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(mapUnit); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Directive = function (name, value, index, currentFileInfo) { - this.name = name; - - if (Array.isArray(value)) { - this.rules = [new(tree.Ruleset)(null, value)]; - this.rules[0].allowImports = true; - } else { - this.value = value; - } - this.index = index; - this.currentFileInfo = currentFileInfo; - -}; -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - if (this.value) { - this.value = visitor.visit(this.value); - } - }, - genCSS: function (env, output) { - output.add(this.name, this.currentFileInfo, this.index); - if (this.rules) { - tree.outputRuleset(env, output, this.rules); - } else { - output.add(' '); - this.value.genCSS(env, output); - output.add(';'); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var evaldDirective = this; - if (this.rules) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name, null, this.index, this.currentFileInfo); - evaldDirective.rules = [this.rules[0].eval(env)]; - evaldDirective.rules[0].root = true; - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - markReferenced: function () { - var i, rules; - this.isReferenced = true; - if (this.rules) { - rules = this.rules[0].rules; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Element = function (combinator, value, index, currentFileInfo) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - var value = this.value; - this.combinator = visitor.visit(this.combinator); - if (typeof value === "object") { - this.value = visitor.visit(value); - } - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index, - this.currentFileInfo); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env), this.currentFileInfo, this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value === '' && this.combinator.value.charAt(0) === '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - _outputMap: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : ' + ', - '~' : ' ~ ', - '>' : ' > ', - '|' : '|', - '^' : ' ^ ', - '^^' : ' ^^ ' - }, - _outputMapCompressed: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : '+', - '~' : '~', - '>' : '>', - '|' : '|', - '^' : '^', - '^^' : '^^' - }, - genCSS: function (env, output) { - output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - genCSS: function (env, output) { - for(var i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i + 1 < this.value.length) { - output.add(" "); - } - } - }, - toCSS: tree.toCSS, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - this.object_id = tree.Extend.next_id++; - this.parent_ids = [this.object_id]; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; -tree.Extend.next_id = 0; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i, - selectorElements; - - for(i = 0; i < selectors.length; i++) { - selectorElements = selectors[i].elements; - // duplicate the logic in genCSS function inside the selector node. - // future TODO - move both logics into the selector joiner visitor - if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") { - selectorElements[0].combinator.value = ' '; - } - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); - -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined || this.options.inline) { - this.css = !this.options.less || this.options.inline; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - this.path = visitor.visit(this.path); - if (!this.options.inline && this.root) { - this.root = visitor.visit(this.root); - } - }, - genCSS: function (env, output) { - if (this.css) { - output.add("@import ", this.currentFileInfo, this.index); - this.path.genCSS(env, output); - if (this.features) { - output.add(" "); - this.features.genCSS(env, output); - } - output.add(';'); - } - }, - toCSS: tree.toCSS, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - - if (!(path instanceof tree.URL)) { - if (rootpath) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath + pathValue; - } - } - path.value = env.normalizePath(path.value); - } - - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { return []; } - - if (this.options.inline) { - //todo needs to reference css file not import - var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true); - return this.features ? new(tree.Media)([contents], this.features.value) : [contents]; - } else if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" , - index: this.index }; - } - - var variables = env.frames[0].variables(); - for (var k in variables) { - if (variables.hasOwnProperty(k)) { - /*jshint loopfunc:true */ - context[k.slice(1)] = { - value: variables[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'number') { - return new(tree.Dimension)(result); - } else if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Keyword = function (value) { this.value = value; }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); - -(function (tree) { - -tree.Media = function (value, features, index, currentFileInfo) { - this.index = index; - this.currentFileInfo = currentFileInfo; - - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.rules = [new(tree.Ruleset)(selectors, value)]; - this.rules[0].allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - }, - genCSS: function (env, output) { - output.add('@media ', this.currentFileInfo, this.index); - this.features.genCSS(env, output); - tree.outputRuleset(env, output, this.rules); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)(null, [], this.index, this.currentFileInfo); - if(this.debugInfo) { - this.rules[0].debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.rules[0]); - media.rules = [this.rules[0].eval(env)]; - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env); - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', this.index, this.currentFileInfo); - return [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)]; - }, - markReferenced: function () { - var i, rules = this.rules[0].rules; - this.isReferenced = true; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])]; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = (args && args.length) ? args : null; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - if (this.selector) { - this.selector = visitor.visit(this.selector); - } - if (this.arguments) { - this.arguments = visitor.visitArray(this.arguments); - } - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule; - var candidates = [], candidate, conditionResult = [], defaultFunc = tree.defaultFunc, defaultUsed = false; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - - // To make `default()` function independent of definition order we have two "subpasses" here. - // At first we evaluate each guard *twice* (with `default() == true` and `default() == false`), - // and build candidate list with corresponding flags. Then, when we know all possible matches, - // we make a final decision. - - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - - if (mixin.matchArgs(args, env)) { - candidate = {mixin: mixin}; - - if (mixin.matchCondition) { - for (f = 0; f < 2; f++) { - defaultFunc.value(f); - conditionResult[f] = mixin.matchCondition(args, env); - } - if (conditionResult[0] || conditionResult[1]) { - if (conditionResult[0] != conditionResult[1]) { - if (defaultUsed) { - // todo: ideally, it would make sense to also print the candidate - // mixin definitions that cause the conflict (current one and the - // mixin that set defaultUsed flag). But is there any easy method - // to get their filename/line/index info here? - throw { type: 'Runtime', - message: 'Ambiguous use of `default()` found when matching for `' - + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } - - defaultUsed = true; - candidate.matchIfDefault = true; - candidate.matchIfDefaultValue = conditionResult[1]; - } - - candidates.push(candidate); - } - } - else { - candidates.push(candidate); - } - - match = true; - } - } - - defaultFunc.reset(); - - for (m = 0; m < candidates.length; m++) { - candidate = candidates[m]; - if (!candidate.matchIfDefault || (candidate.matchIfDefaultValue == (candidates.length == 1))) { - try { - mixin = candidate.mixin; - if (!(mixin instanceof tree.mixin.Definition)) { - mixin = new tree.mixin.Definition("", [], mixin.rules, null, false); - mixin.originalRuleset = mixins[m].originalRuleset || mixins[m]; - } - //if (this.important) { - // isImportant = env.isImportant; - // env.isImportant = true; - //} - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - //if (this.important) { - // env.isImportant = isImportant; - //} - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - } - - if (match) { - if (!this.currentFileInfo || !this.currentFileInfo.reference) { - for (i = 0; i < rules.length; i++) { - rule = rules[i]; - if (rule.markReferenced) { - rule.markReferenced(); - } - } - } - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - }, - format: function (args) { - return this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")"; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1; } - else { return count; } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - if (this.params && this.params.length) { - this.params = visitor.visitArray(this.params); - } - this.rules = visitor.visitArray(this.rules); - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - /*jshint boss:true */ - var frame = new(tree.Ruleset)(null, null), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.prependRule(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) { continue; } - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.prependRule(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.prependRule(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - rules, ruleset; - - frame.prependRule(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules); - ruleset.originalRuleset = this; - ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames))); - if (important) { - ruleset = this.parent.makeImportant.apply(ruleset); - } - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] // the parameter variables - .concat(this.frames) // the parent namespace/mixin frames - .concat(env.frames)))) { // the current environment frames - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (! this.variadic) { - if (argsLength < this.required) { return false; } - if (argsLength > this.params.length) { return false; } - } else { - if (argsLength < (this.required - 1)) { return false; } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('-'); - this.value.genCSS(env, output); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env); - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - a = a.toColor(); - } - if (b instanceof tree.Dimension && a instanceof tree.Color) { - b = b.toColor(); - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - genCSS: function (env, output) { - this.operands[0].genCSS(env, output); - if (this.isSpaced) { - output.add(" "); - } - output.add(this.op); - if (this.isSpaced) { - output.add(" "); - } - this.operands[1].genCSS(env, output); - }, - toCSS: tree.toCSS -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('('); - this.value.genCSS(env, output); - output.add(')'); - }, - toCSS: tree.toCSS, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - genCSS: function (env, output) { - if (!this.escaped) { - output.add(this.quote, this.currentFileInfo, this.index); - } - output.add(this.value); - if (!this.escaped) { - output.add(this.quote); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.merge = merge; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - this.variable = name.charAt && (name.charAt(0) === '@'); -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index); - try { - this.value.genCSS(env, output); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index); - }, - toCSS: tree.toCSS, - eval: function (env) { - var strictMathBypass = false; - var name = this.name.map ? - this.name.map( function(v) { - return v.eval ? v.eval(env).value : v; - }).join('') : this.name; - if (name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - return new(tree.Rule)(name, - this.value.eval(env), - this.important, - this.merge, - this.index, this.currentFileInfo, this.inline); - } - catch(e) { - if (e.index === undefined) { - e.index = this.index; - } - throw e; - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.merge, - this.index, this.currentFileInfo, this.inline); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - if (this.paths) { - visitor.visitArray(this.paths, true); - } else if (this.selectors) { - this.selectors = visitor.visitArray(this.selectors); - } - if (this.rules && this.rules.length) { - this.rules = visitor.visitArray(this.rules); - } - }, - eval: function (env) { - var thisSelectors = this.selectors, selectors, - selCnt, i, defaultFunc = tree.defaultFunc; - if (thisSelectors && (selCnt = thisSelectors.length)) { - selectors = []; - defaultFunc.error({ - type: "Syntax", - message: "it is currently only allowed in parametric mixin guards," - }); - for (i = 0; i < selCnt; i++) { - selectors.push(thisSelectors[i].eval(env)); - } - defaultFunc.reset(); - } - - var rules = this.rules ? this.rules.slice(0) : null, - ruleset = new(tree.Ruleset)(selectors, rules, this.strictImports), - rule; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - var envFrames = env.frames; - envFrames.unshift(ruleset); - - // currrent selectors - var envSelectors = env.selectors; - if (!envSelectors) { - env.selectors = envSelectors = []; - } - envSelectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - var rsRules = ruleset.rules, rsRuleCnt = rsRules ? rsRules.length : 0; - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Definition) { - rsRules[i].frames = envFrames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Call) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (i = 0; i < rsRuleCnt; i++) { - rule = rsRules[i]; - if (! (rule instanceof tree.mixin.Definition)) { - rsRules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - envFrames.shift(); - envSelectors.shift(); - - if (env.mediaBlocks) { - for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var rules = this.rules, i, importRules; - if (!rules) { return; } - - for (i = 0; i < rules.length; i++) { - if (rules[i] instanceof tree.Import) { - importRules = rules[i].eval(env); - if (importRules && importRules.length) { - rules.splice.apply(rules, [i, 1].concat(importRules)); - i+= importRules.length-1; - } else { - rules.splice(i, 1, importRules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - matchCondition: function (args, env) { - var lastSelector = this.selectors[this.selectors.length-1]; - if (lastSelector.condition && - !lastSelector.condition.eval( - new(tree.evalEnv)(env, - env.frames))) { - return false; - } - return true; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (!this._variables) { - this._variables = !this.rules ? {} : this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - return this._variables; - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (!this.rules) { return null; } - - var _Ruleset = tree.Ruleset, _MixinDefinition = tree.mixin.Definition, - filtRules = [], rules = this.rules, cnt = rules.length, - i, rule; - - for (i = 0; i < cnt; i++) { - rule = rules[i]; - if ((rule instanceof _Ruleset) || (rule instanceof _MixinDefinition)) { - filtRules.push(rule); - } - } - - return filtRules; - }, - prependRule: function (rule) { - var rules = this.rules; - if (rules) { rules.unshift(rule); } else { this.rules = [ rule ]; } - }, - find: function (selector, self) { - self = self || this; - var rules = [], match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key]; } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - match = selector.match(rule.selectors[j]); - if (match) { - if (selector.elements.length > match) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(match)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - this._lookups[key] = rules; - return rules; - }, - genCSS: function (env, output) { - var i, j, - ruleNodes = [], - rulesetNodes = [], - rulesetNodeCnt, - debugInfo, // Line number debugging - rule, - path; - - env.tabLevel = (env.tabLevel || 0); - - if (!this.root) { - env.tabLevel++; - } - - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "), - sep; - - for (i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - if (rule.rules || (rule instanceof tree.Media) || rule instanceof tree.Directive || (this.root && rule instanceof tree.Comment)) { - rulesetNodes.push(rule); - } else { - ruleNodes.push(rule); - } - } - - // If this is the root node, we don't render - // a selector, or {}. - if (!this.root) { - debugInfo = tree.debugInfo(env, this, tabSetStr); - - if (debugInfo) { - output.add(debugInfo); - output.add(tabSetStr); - } - - var paths = this.paths, pathCnt = paths.length, - pathSubCnt; - - sep = env.compress ? ',' : (',\n' + tabSetStr); - - for (i = 0; i < pathCnt; i++) { - path = paths[i]; - if (!(pathSubCnt = path.length)) { continue; } - if (i > 0) { output.add(sep); } - - env.firstSelector = true; - path[0].genCSS(env, output); - - env.firstSelector = false; - for (j = 1; j < pathSubCnt; j++) { - path[j].genCSS(env, output); - } - } - - output.add((env.compress ? '{' : ' {\n') + tabRuleStr); - } - - // Compile rules and rulesets - for (i = 0; i < ruleNodes.length; i++) { - rule = ruleNodes[i]; - - // @page{ directive ends up with root elements inside it, a mix of rules and rulesets - // In this instance we do not know whether it is the last property - if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) { - env.lastRule = true; - } - - if (rule.genCSS) { - rule.genCSS(env, output); - } else if (rule.value) { - output.add(rule.value.toString()); - } - - if (!env.lastRule) { - output.add(env.compress ? '' : ('\n' + tabRuleStr)); - } else { - env.lastRule = false; - } - } - - if (!this.root) { - output.add((env.compress ? '}' : '\n' + tabSetStr + '}')); - env.tabLevel--; - } - - sep = (env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr); - rulesetNodeCnt = rulesetNodes.length; - if (rulesetNodeCnt) { - if (ruleNodes.length && sep) { output.add(sep); } - rulesetNodes[0].genCSS(env, output); - for (i = 1; i < rulesetNodeCnt; i++) { - if (sep) { output.add(sep); } - rulesetNodes[i].genCSS(env, output); - } - } - - if (!output.isEmpty() && !env.compress && this.firstRoot) { - output.add('\n'); - } - }, - - toCSS: tree.toCSS, - - markReferenced: function () { - for (var s = 0; s < this.selectors.length; s++) { - this.selectors[s].markReferenced(); - } - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for (i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for (j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length === 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0, el.index, el.currentFileInfo)); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for (k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = selector.createDerived([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for (i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length === 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for (i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); - -(function (tree) { - -tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) { - this.elements = elements; - this.extendList = extendList; - this.condition = condition; - this.currentFileInfo = currentFileInfo || {}; - this.isReferenced = isReferenced; - if (!condition) { - this.evaldCondition = true; - } -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - if (this.elements) { - this.elements = visitor.visitArray(this.elements); - } - if (this.extendList) { - this.extendList = visitor.visitArray(this.extendList); - } - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - createDerived: function(elements, extendList, evaldCondition) { - evaldCondition = (evaldCondition != null) ? evaldCondition : this.evaldCondition; - var newSelector = new(tree.Selector)(elements, extendList || this.extendList, this.condition, this.index, this.currentFileInfo, this.isReferenced); - newSelector.evaldCondition = evaldCondition; - return newSelector; - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, i; - - oelements = other.elements.map( function(v) { - return v.combinator.value + (v.value.value || v.value); - }).join("").match(/[,&#\.\w-]([\w-]|(\\.))*/g); - // ^ regexp could be more simple but see test/less/css-escapes.less:17, doh! - - if (!oelements) { - return 0; - } - - if (oelements[0] === "&") { - oelements.shift(); - } - - olen = oelements.length; - if (olen === 0 || len < olen) { - return 0; - } else { - for (i = 0; i < olen; i++) { - if (elements[i].value !== oelements[i]) { - return 0; - } - } - } - return olen; // return number of matched elements - }, - eval: function (env) { - var evaldCondition = this.condition && this.condition.eval(env), - elements = this.elements, extendList = this.extendList; - - elements = elements && elements.map(function (e) { return e.eval(env); }); - extendList = extendList && extendList.map(function(extend) { return extend.eval(env); }); - - return this.createDerived(elements, extendList, evaldCondition); - }, - genCSS: function (env, output) { - var i, element; - if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") { - output.add(' ', this.currentFileInfo, this.index); - } - if (!this._css) { - //TODO caching? speed comparison? - for(i = 0; i < this.elements.length; i++) { - element = this.elements[i]; - element.genCSS(env, output); - } - } - }, - toCSS: tree.toCSS, - markReferenced: function () { - this.isReferenced = true; - }, - getIsReferenced: function() { - return !this.currentFileInfo.reference || this.isReferenced; - }, - getIsOutput: function() { - return this.evaldCondition; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - eval: function () { return this; } -}; - -})(require('../tree')); - -(function (tree) { - -tree.URL = function (val, currentFileInfo, isEvald) { - this.value = val; - this.currentFileInfo = currentFileInfo; - this.isEvald = isEvald; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add("url("); - this.value.genCSS(env, output); - output.add(")"); - }, - toCSS: tree.toCSS, - eval: function (ctx) { - var val = this.value.eval(ctx), - rootpath; - - if (!this.isEvald) { - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - val.value = ctx.normalizePath(val.value); - } - - return new(tree.URL)(val, this.currentFileInfo, true); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - genCSS: function (env, output) { - var i; - for(i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i+1 < this.value.length) { - output.add((env && env.compress) ? ',' : ', '); - } - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { - this.name = name; - this.index = index; - this.currentFileInfo = currentFileInfo || {}; -}; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, name = this.name; - - if (name.indexOf('@@') === 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - variable = tree.find(env.frames, function (frame) { - var v = frame.variable(name); - if (v) { - return v.value.eval(env); - } - }); - if (variable) { - this.evaluating = false; - return variable; - } else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); - -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // map - filename to contents of all the files - 'contentsIgnoredChars', // map - filename to lines at the begining of each file to ignore - 'relativeUrls', // option - whether to adjust URL's to be relative - 'rootpath', // option - rootpath to append to URL's - 'strictImports', // option - - 'insecure', // option - whether to allow imports from insecure ssl hosts - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true - 'mime', // browser only - mime type for sheet import - 'useFileCache', // browser only - whether to use the per file session cache - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' - absolute path to the entry file - // 'reference' - whether the file should not be output and only output parts that are referenced - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.contentsIgnoredChars) { this.contentsIgnoredChars = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits', // whether units need to evaluate correctly - 'cleancss', // whether to compress with clean-css - 'sourceMap', // whether to output a source map - 'importMultiple'// whether we are currently importing multiple copies - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - tree.evalEnv.prototype.normalizePath = function( path ) { - var - segments = path.split("/").reverse(), - segment; - - path = []; - while (segments.length !== 0 ) { - segment = segments.pop(); - switch( segment ) { - case ".": - break; - case "..": - if ((path.length === 0) || (path[path.length - 1] === "..")) { - path.push( segment ); - } else { - path.pop(); - } - break; - default: - path.push( segment ); - break; - } - } - - return path.join("/"); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - }; - -})(require('./tree')); - -(function (tree) { - - var _visitArgs = { visitDeeper: true }, - _hasIndexed = false; - - function _noop(node) { - return node; - } - - function indexNodeTypes(parent, ticker) { - // add .typeIndex to tree node types for lookup table - var key, child; - for (key in parent) { - if (parent.hasOwnProperty(key)) { - child = parent[key]; - switch (typeof child) { - case "function": - // ignore bound functions directly on tree which do not have a prototype - // or aren't nodes - if (child.prototype && child.prototype.type) { - child.prototype.typeIndex = ticker++; - } - break; - case "object": - ticker = indexNodeTypes(child, ticker); - break; - } - } - } - return ticker; - } - - tree.visitor = function(implementation) { - this._implementation = implementation; - this._visitFnCache = []; - - if (!_hasIndexed) { - indexNodeTypes(tree, 1); - _hasIndexed = true; - } - }; - - tree.visitor.prototype = { - visit: function(node) { - if (!node) { - return node; - } - - var nodeTypeIndex = node.typeIndex; - if (!nodeTypeIndex) { - return node; - } - - var visitFnCache = this._visitFnCache, - impl = this._implementation, - aryIndx = nodeTypeIndex << 1, - outAryIndex = aryIndx | 1, - func = visitFnCache[aryIndx], - funcOut = visitFnCache[outAryIndex], - visitArgs = _visitArgs, - fnName; - - visitArgs.visitDeeper = true; - - if (!func) { - fnName = "visit" + node.type; - func = impl[fnName] || _noop; - funcOut = impl[fnName + "Out"] || _noop; - visitFnCache[aryIndx] = func; - visitFnCache[outAryIndex] = funcOut; - } - - if (func !== _noop) { - var newNode = func.call(impl, node, visitArgs); - if (impl.isReplacing) { - node = newNode; - } - } - - if (visitArgs.visitDeeper && node && node.accept) { - node.accept(this); - } - - if (funcOut != _noop) { - funcOut.call(impl, node); - } - - return node; - }, - visitArray: function(nodes, nonReplacing) { - if (!nodes) { - return nodes; - } - - var cnt = nodes.length, i; - - // Non-replacing - if (nonReplacing || !this._implementation.isReplacing) { - for (i = 0; i < cnt; i++) { - this.visit(nodes[i]); - } - return nodes; - } - - // Replacing - var out = []; - for (i = 0; i < cnt; i++) { - var evald = this.visit(nodes[i]); - if (!evald.splice) { - out.push(evald); - } else if (evald.length) { - this.flatten(evald, out); - } - } - return out; - }, - flatten: function(arr, out) { - if (!out) { - out = []; - } - - var cnt, i, item, - nestedCnt, j, nestedItem; - - for (i = 0, cnt = arr.length; i < cnt; i++) { - item = arr[i]; - if (!item.splice) { - out.push(item); - continue; - } - - for (j = 0, nestedCnt = item.length; j < nestedCnt; j++) { - nestedItem = item[j]; - if (!nestedItem.splice) { - out.push(nestedItem); - } else if (nestedItem.length) { - this.flatten(nestedItem, out); - } - } - } - - return out; - } - }; - -})(require('./tree')); -(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode, - inlineCSS = importNode.options.inline; - - if (!importNode.css || inlineCSS) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - - if (importNode.options.multiple) { - env.importMultiple = true; - } - - this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, imported, fullPath) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - - if (imported && !env.importMultiple) { importNode.skip = imported; } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - importNode.importedFilename = fullPath; - if (!inlineCSS && !importNode.skip) { - new(tree.importVisitor)(importVisitor._importer, subFinish, env) - .run(root); - return; - } - } - - subFinish(); - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree')); -(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1], - paths = [], selectors; - - this.contexts.push(paths); - - if (! rulesetNode.root) { - selectors = rulesetNode.selectors; - if (selectors) { - selectors = selectors.filter(function(selector) { return selector.getIsOutput(); }); - rulesetNode.selectors = selectors.length ? selectors : (selectors = null); - if (selectors) { rulesetNode.joinSelectors(paths, context, selectors); } - } - if (!selectors) { rulesetNode.rules = null; } - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree')); -(function (tree) { - tree.toCSSVisitor = function(env) { - this._visitor = new tree.visitor(this); - this._env = env; - }; - - tree.toCSSVisitor.prototype = { - isReplacing: true, - run: function (root) { - return this._visitor.visit(root); - }, - - visitRule: function (ruleNode, visitArgs) { - if (ruleNode.variable) { - return []; - } - return ruleNode; - }, - - visitMixinDefinition: function (mixinNode, visitArgs) { - return []; - }, - - visitExtend: function (extendNode, visitArgs) { - return []; - }, - - visitComment: function (commentNode, visitArgs) { - if (commentNode.isSilent(this._env)) { - return []; - } - return commentNode; - }, - - visitMedia: function(mediaNode, visitArgs) { - mediaNode.accept(this._visitor); - visitArgs.visitDeeper = false; - - if (!mediaNode.rules.length) { - return []; - } - return mediaNode; - }, - - visitDirective: function(directiveNode, visitArgs) { - if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) { - return []; - } - if (directiveNode.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (this.charset) { - if (directiveNode.debugInfo) { - var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n"); - comment.debugInfo = directiveNode.debugInfo; - return this._visitor.visit(comment); - } - return []; - } - this.charset = true; - } - return directiveNode; - }, - - checkPropertiesInRoot: function(rules) { - var ruleNode; - for(var i = 0; i < rules.length; i++) { - ruleNode = rules[i]; - if (ruleNode instanceof tree.Rule && !ruleNode.variable) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null}; - } - } - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var rule, rulesets = []; - if (rulesetNode.firstRoot) { - this.checkPropertiesInRoot(rulesetNode.rules); - } - if (! rulesetNode.root) { - if (rulesetNode.paths) { - rulesetNode.paths = rulesetNode.paths - .filter(function(p) { - var i; - if (p[0].elements[0].combinator.value === ' ') { - p[0].elements[0].combinator = new(tree.Combinator)(''); - } - for(i = 0; i < p.length; i++) { - if (p[i].getIsReferenced() && p[i].getIsOutput()) { - return true; - } - } - return false; - }); - } - - // Compile rules and rulesets - var nodeRules = rulesetNode.rules, nodeRuleCnt = nodeRules ? nodeRules.length : 0; - for (var i = 0; i < nodeRuleCnt; ) { - rule = nodeRules[i]; - if (rule && rule.rules) { - // visit because we are moving them out from being a child - rulesets.push(this._visitor.visit(rule)); - nodeRules.splice(i, 1); - nodeRuleCnt--; - continue; - } - i++; - } - // accept the visitor to remove rules and refactor itself - // then we can decide now whether we want it or not - if (nodeRuleCnt > 0) { - rulesetNode.accept(this._visitor); - } else { - rulesetNode.rules = null; - } - visitArgs.visitDeeper = false; - - nodeRules = rulesetNode.rules; - if (nodeRules) { - this._mergeRules(nodeRules); - nodeRules = rulesetNode.rules; - } - if (nodeRules) { - this._removeDuplicateRules(nodeRules); - nodeRules = rulesetNode.rules; - } - - // now decide whether we keep the ruleset - if (nodeRules && nodeRules.length > 0 && rulesetNode.paths.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } else { - rulesetNode.accept(this._visitor); - visitArgs.visitDeeper = false; - if (rulesetNode.firstRoot || (rulesetNode.rules && rulesetNode.rules.length > 0)) { - rulesets.splice(0, 0, rulesetNode); - } - } - if (rulesets.length === 1) { - return rulesets[0]; - } - return rulesets; - }, - - _removeDuplicateRules: function(rules) { - if (!rules) { return; } - - // remove duplicates - var ruleCache = {}, - ruleList, rule, i; - - for(i = rules.length - 1; i >= 0 ; i--) { - rule = rules[i]; - if (rule instanceof tree.Rule) { - if (!ruleCache[rule.name]) { - ruleCache[rule.name] = rule; - } else { - ruleList = ruleCache[rule.name]; - if (ruleList instanceof tree.Rule) { - ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)]; - } - var ruleCSS = rule.toCSS(this._env); - if (ruleList.indexOf(ruleCSS) !== -1) { - rules.splice(i, 1); - } else { - ruleList.push(ruleCSS); - } - } - } - } - }, - - _mergeRules: function (rules) { - if (!rules) { return; } - - var groups = {}, - parts, - rule, - key; - - for (var i = 0; i < rules.length; i++) { - rule = rules[i]; - - if ((rule instanceof tree.Rule) && rule.merge) { - key = [rule.name, - rule.important ? "!" : ""].join(","); - - if (!groups[key]) { - groups[key] = []; - } else { - rules.splice(i--, 1); - } - - groups[key].push(rule); - } - } - - Object.keys(groups).map(function (k) { - parts = groups[k]; - - if (parts.length > 1) { - rule = parts[0]; - - rule.value = new (tree.Value)(parts.map(function (p) { - return p.value; - })); - } - }); - } - }; - -})(require('./tree')); -(function (tree) { - /*jshint loopfunc:true */ - - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - var rules = rulesetNode.rules, ruleCnt = rules ? rules.length : 0; - for(i = 0; i < ruleCnt; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rules[i]); - rulesetNode.extendOnEveryPath = true; - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - var paths = rulesetNode.paths; - for(i = 0; i < paths.length; i++) { - var selectorPath = paths[i], - selector = selectorPath[selectorPath.length - 1], - selExtendList = selector.extendList; - - extendList = selExtendList ? selExtendList.slice(0).concat(allSelectorsExtendList) - : allSelectorsExtendList; - - if (extendList) { - extendList = extendList.map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - } - - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if( extend.parent_ids.indexOf( targetExtend.object_id ) >= 0 ){ continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parent_ids = newExtend.parent_ids.concat(targetExtend.parent_ids, extend.parent_ids); - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (rulesetNode.extendOnEveryPath) { continue; } - var extendList = selectorPath[selectorPath.length-1].extendList; - if (extendList && extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator === '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - elementValue1 = elementValue1.value; - elementValue2 = elementValue2.value; - if (elementValue1 instanceof tree.Selector) { - if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) { - return false; - } - for(var i = 0; i currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - newElements = selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)); - - if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) { - path[path.length - 1].elements = - path[path.length - 1].elements.concat(newElements); - } else { - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - newElements - )); - } - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.sourceMapOutput = function (options) { - this._css = []; - this._rootNode = options.rootNode; - this._writeSourceMap = options.writeSourceMap; - this._contentsMap = options.contentsMap; - this._contentsIgnoredCharsMap = options.contentsIgnoredCharsMap; - this._sourceMapFilename = options.sourceMapFilename; - this._outputFilename = options.outputFilename; - this._sourceMapURL = options.sourceMapURL; - if (options.sourceMapBasepath) { - this._sourceMapBasepath = options.sourceMapBasepath.replace(/\\/g, '/'); - } - this._sourceMapRootpath = options.sourceMapRootpath; - this._outputSourceFiles = options.outputSourceFiles; - this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator; - - if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') { - this._sourceMapRootpath += '/'; - } - - this._lineNumber = 0; - this._column = 0; - }; - - tree.sourceMapOutput.prototype.normalizeFilename = function(filename) { - filename = filename.replace(/\\/g, '/'); - - if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) { - filename = filename.substring(this._sourceMapBasepath.length); - if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') { - filename = filename.substring(1); - } - } - return (this._sourceMapRootpath || "") + filename; - }; - - tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) { - - //ignore adding empty strings - if (!chunk) { - return; - } - - var lines, - sourceLines, - columns, - sourceColumns, - i; - - if (fileInfo) { - var inputSource = this._contentsMap[fileInfo.filename]; - - // remove vars/banner added to the top of the file - if (this._contentsIgnoredCharsMap[fileInfo.filename]) { - // adjust the index - index -= this._contentsIgnoredCharsMap[fileInfo.filename]; - if (index < 0) { index = 0; } - // adjust the source - inputSource = inputSource.slice(this._contentsIgnoredCharsMap[fileInfo.filename]); - } - inputSource = inputSource.substring(0, index); - sourceLines = inputSource.split("\n"); - sourceColumns = sourceLines[sourceLines.length-1]; - } - - lines = chunk.split("\n"); - columns = lines[lines.length-1]; - - if (fileInfo) { - if (!mapLines) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column}, - original: { line: sourceLines.length, column: sourceColumns.length}, - source: this.normalizeFilename(fileInfo.filename)}); - } else { - for(i = 0; i < lines.length; i++) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0}, - original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0}, - source: this.normalizeFilename(fileInfo.filename)}); - } - } - } - - if (lines.length === 1) { - this._column += columns.length; - } else { - this._lineNumber += lines.length - 1; - this._column = columns.length; - } - - this._css.push(chunk); - }; - - tree.sourceMapOutput.prototype.isEmpty = function() { - return this._css.length === 0; - }; - - tree.sourceMapOutput.prototype.toCSS = function(env) { - this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null }); - - if (this._outputSourceFiles) { - for(var filename in this._contentsMap) { - if (this._contentsMap.hasOwnProperty(filename)) - { - var source = this._contentsMap[filename]; - if (this._contentsIgnoredCharsMap[filename]) { - source = source.slice(this._contentsIgnoredCharsMap[filename]); - } - this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), source); - } - } - } - - this._rootNode.genCSS(env, this); - - if (this._css.length > 0) { - var sourceMapURL, - sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); - - if (this._sourceMapURL) { - sourceMapURL = this._sourceMapURL; - } else if (this._sourceMapFilename) { - sourceMapURL = this.normalizeFilename(this._sourceMapFilename); - } - - if (this._writeSourceMap) { - this._writeSourceMap(sourceMapContent); - } else { - sourceMapURL = "data:application/json," + encodeURIComponent(sourceMapContent); - } - - if (sourceMapURL) { - this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */"); - } - } - - return this._css.join(''); - }; - -})(require('./tree')); - -// -// browser.js - client-side engine -// -/*global less, window, document, XMLHttpRequest, location */ - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - (location.port && - location.port.length > 0) || - isFileProtocol ? 'development' - : 'production'); - -var logLevel = { - info: 2, - errors: 1, - none: 0 -}; - -// The amount of logging in the javascript console. -// 2 - Information and errors -// 1 - Errors -// 0 - None -// Defaults to 2 -less.logLevel = typeof(less.logLevel) != 'undefined' ? less.logLevel : logLevel.info; - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - if (less.functions.hasOwnProperty(func)) { - less.tree.functions[func] = less.functions[func]; - } - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -var typePattern = /^text\/(x-)?less$/; -var cache = null; -var fileCache = {}; - -function log(str, level) { - if (less.env == 'development' && typeof(console) !== 'undefined' && less.logLevel >= level) { - console.log('less: ' + str); - } -} - -function extractId(href) { - return href.replace(/^[a-z-]+:\/+?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function errorConsole(e, rootHref) { - var template = '{line} {content}'; - var filename = e.filename || rootHref; - var errors = []; - var content = (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - " in " + filename + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n' + - errors.join('\n'); - } else if (e.stack) { - content += e.stack; - } - log(content, logLevel.errors); -} - -function createCSS(styles, sheet, lastModified) { - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If this has already been inserted into the DOM, we may need to replace it - var oldCss = document.getElementById(id); - var keepOldCss = false; - - // Create a new stylesheet node for insertion or (if necessary) replacement - var css = document.createElement('style'); - css.setAttribute('type', 'text/css'); - if (sheet.media) { - css.setAttribute('media', sheet.media); - } - css.id = id; - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - css.appendChild(document.createTextNode(styles)); - - // If new contents match contents of oldCss, don't replace oldCss - keepOldCss = (oldCss !== null && oldCss.childNodes.length > 0 && css.childNodes.length > 0 && - oldCss.firstChild.nodeValue === css.firstChild.nodeValue); - } - - var head = document.getElementsByTagName('head')[0]; - - // If there is no oldCss, just append; otherwise, only append if we need - // to replace oldCss with an updated stylesheet - if (oldCss === null || keepOldCss === false) { - var nextEl = sheet && sheet.nextSibling || null; - if (nextEl) { - nextEl.parentNode.insertBefore(css, nextEl); - } else { - head.appendChild(css); - } - } - if (oldCss && keepOldCss === false) { - oldCss.parentNode.removeChild(oldCss); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.', logLevel.info); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save', logLevel.errors); - } - } -} - -function errorHTML(e, rootHref) { - var id = 'less-error-message:' + extractId(rootHref || ""); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, errors = []; - var filename = e.filename || rootHref; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - '

    ' + '

    in ' + filenameNoPath + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - '
      ' + errors.join('') + '
    '; - } else if (e.stack) { - content += '
    ' + e.stack.split('\n').slice(1).join('
    '); - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #dd6666;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.line {', - 'color: #ff0000;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); - - if (less.env == 'development') { - timer = setInterval(function () { - if (document.body) { - if (document.getElementById(id)) { - document.body.replaceChild(elem, document.getElementById(id)); - } else { - document.body.insertBefore(elem, document.body.firstChild); - } - clearInterval(timer); - } - }, 10); - } -} - -function error(e, rootHref) { - if (!less.errorReporting || less.errorReporting === "html") { - errorHTML(e, rootHref); - } else if (less.errorReporting === "console") { - errorConsole(e, rootHref); - } else if (typeof less.errorReporting === 'function') { - less.errorReporting("add", e, rootHref); - } -} - -function removeErrorHTML(path) { - var node = document.getElementById('less-error-message:' + extractId(path)); - if (node) { - node.parentNode.removeChild(node); - } -} - -function removeErrorConsole(path) { - //no action -} - -function removeError(path) { - if (!less.errorReporting || less.errorReporting === "html") { - removeErrorHTML(path); - } else if (less.errorReporting === "console") { - removeErrorConsole(path); - } else if (typeof less.errorReporting === 'function') { - less.errorReporting("remove", path); - } -} - -function loadStyles(modifyVars) { - var styles = document.getElementsByTagName('style'), - style; - for (var i = 0; i < styles.length; i++) { - style = styles[i]; - if (style.type.match(typePattern)) { - var env = new less.tree.parseEnv(less), - lessText = style.innerHTML || ''; - env.filename = document.location.href.replace(/#.*$/, ''); - - if (modifyVars || less.globalVars) { - env.useFileCache = true; - } - - /*jshint loopfunc:true */ - // use closure to store current value of i - var callback = (function(style) { - return function (e, cssAST) { - if (e) { - return error(e, "inline"); - } - var css = cssAST.toCSS(less); - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }; - })(style); - new(less.Parser)(env).parse(lessText, callback, {globalVars: less.globalVars, modifyVars: modifyVars}); - } - } -} - -function extractUrlParts(url, baseUrl) { - // urlParts[1] = protocol&hostname || / - // urlParts[2] = / if path relative to host base - // urlParts[3] = directories - // urlParts[4] = filename - // urlParts[5] = parameters - - var urlPartsRegex = /^((?:[a-z-]+:)?\/+?(?:[^\/\?#]*\/)|([\/\\]))?((?:[^\/\\\?#]*[\/\\])*)([^\/\\\?#]*)([#\?].*)?$/i, - urlParts = url.match(urlPartsRegex), - returner = {}, directories = [], i, baseUrlParts; - - if (!urlParts) { - throw new Error("Could not parse sheet href - '"+url+"'"); - } - - // Stylesheets in IE don't always return the full path - if (!urlParts[1] || urlParts[2]) { - baseUrlParts = baseUrl.match(urlPartsRegex); - if (!baseUrlParts) { - throw new Error("Could not parse page url - '"+baseUrl+"'"); - } - urlParts[1] = urlParts[1] || baseUrlParts[1] || ""; - if (!urlParts[2]) { - urlParts[3] = baseUrlParts[3] + urlParts[3]; - } - } - - if (urlParts[3]) { - directories = urlParts[3].replace(/\\/g, "/").split("/"); - - // extract out . before .. so .. doesn't absorb a non-directory - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".") { - directories.splice(i, 1); - i -= 1; - } - } - - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".." && i > 0) { - directories.splice(i-1, 2); - i -= 2; - } - } - } - - returner.hostPart = urlParts[1]; - returner.directories = directories; - returner.path = urlParts[1] + directories.join("/"); - returner.fileUrl = returner.path + (urlParts[4] || ""); - returner.url = returner.fileUrl + (urlParts[5] || ""); - return returner; -} - -function pathDiff(url, baseUrl) { - // diff between two paths to create a relative path - - var urlParts = extractUrlParts(url), - baseUrlParts = extractUrlParts(baseUrl), - i, max, urlDirectories, baseUrlDirectories, diff = ""; - if (urlParts.hostPart !== baseUrlParts.hostPart) { - return ""; - } - max = Math.max(baseUrlParts.directories.length, urlParts.directories.length); - for(i = 0; i < max; i++) { - if (baseUrlParts.directories[i] !== urlParts.directories[i]) { break; } - } - baseUrlDirectories = baseUrlParts.directories.slice(i); - urlDirectories = urlParts.directories.slice(i); - for(i = 0; i < baseUrlDirectories.length-1; i++) { - diff += "../"; - } - for(i = 0; i < urlDirectories.length-1; i++) { - diff += urlDirectories[i] + "/"; - } - return diff; -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new XMLHttpRequest(); - } else { - try { - /*global ActiveXObject */ - return new ActiveXObject("MSXML2.XMLHTTP.3.0"); - } catch (e) { - log("browser doesn't support AJAX.", logLevel.errors); - return null; - } - } -} - -function doXHR(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? less.fileAsync : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - log("XHR: Getting '" + url + "'", logLevel.info); - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } - - if (isFileProtocol && !less.fileAsync) { - if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } -} - -function loadFile(originalHref, currentFileInfo, callback, env, modifyVars) { - - if (currentFileInfo && currentFileInfo.currentDirectory && !/^([a-z-]+:)?\//.test(originalHref)) { - originalHref = currentFileInfo.currentDirectory + originalHref; - } - - // sheet may be set to the stylesheet for the initial load or a collection of properties including - // some env variables for imports - var hrefParts = extractUrlParts(originalHref, window.location.href); - var href = hrefParts.url; - var newFileInfo = { - currentDirectory: hrefParts.path, - filename: href - }; - - if (currentFileInfo) { - newFileInfo.entryPath = currentFileInfo.entryPath; - newFileInfo.rootpath = currentFileInfo.rootpath; - newFileInfo.rootFilename = currentFileInfo.rootFilename; - newFileInfo.relativeUrls = currentFileInfo.relativeUrls; - } else { - newFileInfo.entryPath = hrefParts.path; - newFileInfo.rootpath = less.rootpath || hrefParts.path; - newFileInfo.rootFilename = href; - newFileInfo.relativeUrls = env.relativeUrls; - } - - if (newFileInfo.relativeUrls) { - if (env.rootpath) { - newFileInfo.rootpath = extractUrlParts(env.rootpath + pathDiff(hrefParts.path, newFileInfo.entryPath)).path; - } else { - newFileInfo.rootpath = hrefParts.path; - } - } - - if (env.useFileCache && fileCache[href]) { - try { - var lessText = fileCache[href]; - callback(null, lessText, href, newFileInfo, { lastModified: new Date() }); - } catch (e) { - callback(e, null, href); - } - return; - } - - doXHR(href, env.mime, function (data, lastModified) { - // per file cache - fileCache[href] = data; - - // Use remote copy (re-parse) - try { - callback(null, data, href, newFileInfo, { lastModified: lastModified }); - } catch (e) { - callback(e, null, href); - } - }, function (status, url) { - callback({ type: 'File', message: "'" + url + "' wasn't found (" + status + ")" }, null, href); - }); -} - -function loadStyleSheet(sheet, callback, reload, remaining, modifyVars) { - - var env = new less.tree.parseEnv(less); - env.mime = sheet.type; - - if (modifyVars || less.globalVars) { - env.useFileCache = true; - } - - loadFile(sheet.href, null, function(e, data, path, newFileInfo, webInfo) { - - if (webInfo) { - webInfo.remaining = remaining; - - var css = cache && cache.getItem(path), - timestamp = cache && cache.getItem(path + ':timestamp'); - - if (!reload && timestamp && webInfo.lastModified && - (new(Date)(webInfo.lastModified).valueOf() === - new(Date)(timestamp).valueOf())) { - // Use local copy - createCSS(css, sheet); - webInfo.local = true; - callback(null, null, data, sheet, webInfo, path); - return; - } - } - - //TODO add tests around how this behaves when reloading - removeError(path); - - if (data) { - env.currentFileInfo = newFileInfo; - new(less.Parser)(env).parse(data, function (e, root) { - if (e) { return callback(e, null, null, sheet); } - try { - callback(e, root, data, sheet, webInfo, path); - } catch (e) { - callback(e, null, null, sheet); - } - }, {modifyVars: modifyVars, globalVars: less.globalVars}); - } else { - callback(e, null, null, sheet, webInfo, path); - } - }, env, modifyVars); -} - -function loadStyleSheets(callback, reload, modifyVars) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1), modifyVars); - } -} - -function initRunningMode(){ - if (less.env === 'development') { - less.optimization = 0; - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (e, root, _, sheet, env) { - if (e) { - error(e, sheet.href); - } else if (root) { - createCSS(root.toCSS(less), sheet, env.lastModified); - } - }); - } - }, less.poll); - } else { - less.optimization = 3; - } -} - - - -// -// Watch mode -// -less.watch = function () { - if (!less.watchMode ){ - less.env = 'development'; - initRunningMode(); - } - this.watchMode = true; - return true; -}; - -less.unwatch = function () {clearInterval(less.watchTimer); this.watchMode = false; return false; }; - -if (/!watch/.test(location.hash)) { - less.watch(); -} - -if (less.env != 'development') { - try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; - } catch (_) {} -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - -// -// With this function, it's possible to alter variables and re-render -// CSS without reloading less-files -// -less.modifyVars = function(record) { - less.refresh(false, record); -}; - -less.refresh = function (reload, modifyVars) { - var startTime, endTime; - startTime = endTime = new Date(); - - loadStyleSheets(function (e, root, _, sheet, env) { - if (e) { - return error(e, sheet.href); - } - if (env.local) { - log("loading " + sheet.href + " from cache.", logLevel.info); - } else { - log("parsed " + sheet.href + " successfully.", logLevel.info); - createCSS(root.toCSS(less), sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new Date() - endTime) + 'ms', logLevel.info); - if (env.remaining === 0) { - log("css generated in " + (new Date() - startTime) + 'ms', logLevel.info); - } - endTime = new Date(); - }, reload, modifyVars); - - loadStyles(modifyVars); -}; - -less.refreshStyles = loadStyles; - -less.Parser.fileLoader = loadFile; - -less.refresh(less.env === 'development'); - -// amd.js -// -// Define Less as an AMD module. -if (typeof define === "function" && define.amd) { - define(function () { return less; } ); -} - -})(window); \ No newline at end of file diff --git a/awx/ui/static/lib/less/dist/less-1.6.1.min.js b/awx/ui/static/lib/less/dist/less-1.6.1.min.js deleted file mode 100644 index 3636c6c5b5..0000000000 --- a/awx/ui/static/lib/less/dist/less-1.6.1.min.js +++ /dev/null @@ -1,16 +0,0 @@ -/*! - * LESS - Leaner CSS v1.6.1 - * http://lesscss.org - * - * Copyright (c) 2009-2014, Alexis Sellier - * Licensed under the Apache v2 License. - * - */ - - /** * @license Apache v2 - */ - -!function(a,b){function c(b){return a.less[b.split("/")[1]]}function d(a,b){"development"==v.env&&"undefined"!=typeof console&&v.logLevel>=b&&console.log("less: "+a)}function e(a){return a.replace(/^[a-z-]+:\/+?[^\/]+/,"").replace(/^\//,"").replace(/\.[a-zA-Z]+$/,"").replace(/[^\.\w-]+/g,"-").replace(/\./g,":")}function f(a,c){var e="{line} {content}",f=a.filename||c,g=[],h=(a.type||"Syntax")+"Error: "+(a.message||"There is an error in your .less file")+" in "+f+" ",i=function(a,c,d){a.extract[c]!==b&&g.push(e.replace(/\{line\}/,(parseInt(a.line,10)||0)+(c-1)).replace(/\{class\}/,d).replace(/\{content\}/,a.extract[c]))};a.extract?(i(a,0,""),i(a,1,"line"),i(a,2,""),h+="on line "+a.line+", column "+(a.column+1)+":\n"+g.join("\n")):a.stack&&(h+=a.stack),d(h,y.errors)}function g(a,b,c){var f=b.href||"",g="less:"+(b.title||e(f)),h=document.getElementById(g),i=!1,j=document.createElement("style");if(j.setAttribute("type","text/css"),b.media&&j.setAttribute("media",b.media),j.id=g,j.styleSheet)try{j.styleSheet.cssText=a}catch(k){throw new Error("Couldn't reassign styleSheet.cssText.")}else j.appendChild(document.createTextNode(a)),i=null!==h&&h.childNodes.length>0&&j.childNodes.length>0&&h.firstChild.nodeValue===j.firstChild.nodeValue;var l=document.getElementsByTagName("head")[0];if(null===h||i===!1){var m=b&&b.nextSibling||null;m?m.parentNode.insertBefore(j,m):l.appendChild(j)}if(h&&i===!1&&h.parentNode.removeChild(h),c&&C){d("saving "+f+" to cache.",y.info);try{C.setItem(f,a),C.setItem(f+":timestamp",c)}catch(k){d("failed to save",y.errors)}}}function h(a,c){var d,f,h="less-error-message:"+e(c||""),i='
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-}; - - -if (typeof(window.less) === 'undefined' || typeof(window.less.nodeType) !== 'undefined') { window.less = {}; } -less = window.less; -tree = window.less.tree = {}; -less.mode = 'browser'; - -var less, tree; - -// Node.js does not have a header file added which defines less -if (less === undefined) { - less = exports; - tree = require('./tree'); - less.mode = 'node'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `currentPos` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // current chunk - currentPos, // index of current chunk, in `input` - parser, - parsers, - rootFilename = env && env.filename; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed around by reference. - if (!(env instanceof tree.parseEnv)) { - env = new tree.parseEnv(env); - } - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - contentsIgnoredChars: env.contentsIgnoredChars, // lines inserted, not in the original less - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, currentFileInfo, importOptions, callback) { - var parserImports = this; - this.queue.push(path); - - var fileParsedFunc = function (e, root, fullPath) { - parserImports.queue.splice(parserImports.queue.indexOf(path), 1); // Remove the path from the queue - - var importedPreviously = fullPath in parserImports.files || fullPath === rootFilename; - - parserImports.files[fullPath] = root; // Store the root - - if (e && !parserImports.error) { parserImports.error = e; } - - callback(e, root, importedPreviously, fullPath); - }; - - if (less.Parser.importer) { - less.Parser.importer(path, currentFileInfo, fileParsedFunc, env); - } else { - less.Parser.fileLoader(path, currentFileInfo, function(e, contents, fullPath, newFileInfo) { - if (e) {fileParsedFunc(e); return;} - - var newEnv = new tree.parseEnv(env); - - newEnv.currentFileInfo = newFileInfo; - newEnv.processImports = false; - newEnv.contents[fullPath] = contents; - - if (currentFileInfo.reference || importOptions.reference) { - newFileInfo.reference = true; - } - - if (importOptions.inline) { - fileParsedFunc(null, contents, fullPath); - } else { - new(less.Parser)(newEnv).parse(contents, function (e, root) { - fileParsedFunc(e, root, fullPath); - }); - } - }, env); - } - } - }; - - function save() { temp = current; memo = currentPos = i; } - function restore() { current = temp; currentPos = i = memo; } - - function sync() { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - } - function isWhitespace(str, pos) { - var code = str.charCodeAt(pos | 0); - return (code <= 32) && (code === 32 || code === 10 || code === 9); - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var tokType = typeof tok, - match, length; - - // Either match a single character in the input, - // or match a regexp in the current chunk (`current`). - // - if (tokType === "string") { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - // regexp - sync (); - if (! (match = tok.exec(current))) { - return null; - } - - length = match[0].length; - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - - // Specialization of $(tok) - function $re(tok) { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - var m = tok.exec(current); - if (!m) { - return null; - } - - skipWhitespace(m[0].length); - if(typeof m === "string") { - return m; - } - - return m.length === 1 ? m[0] : m; - } - - var _$re = $re; - - // Specialization of $(tok) - function $char(tok) { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - curr = i - currentPos, - endIndex = i + current.length - curr, - mem = (i += length), - inp = input, - c; - - for (; i < endIndex; i++) { - c = inp.charCodeAt(i); - if (c > 32) { - break; - } - - if ((c !== 32) && (c !== 10) && (c !== 9) && (c !== 13)) { - break; - } - } - - current = current.slice(length + i - mem + curr); - currentPos = i; - - if (!current.length && (j < chunks.length - 1)) { - current = chunks[++j]; - skipWhitespace(0); // skip space at the beginning of a chunk - return true; // things changed - } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - // some older browsers return typeof 'function' for RegExp - var result = (Object.prototype.toString.call(arg) === '[object Function]') ? arg.call(parsers) : $(arg); - if (result) { - return result; - } - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } - - // Specialization of expect() - function expectChar(arg, msg) { - if (input.charAt(i) === arg) { - skipWhitespace(1); - return arg; - } - error(msg || "expected '" + arg + "' got '" + input.charAt(i) + "'"); - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - return tok.test(current); - } - } - - // Specialization of peek() - function peekChar(tok) { - return input.charAt(i) === tok; - } - - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, inputStream) { - var n = index + 1, - line = null, - column = -1; - - while (--n >= 0 && inputStream.charAt(n) !== '\n') { - column++; - } - - if (typeof index === 'number') { - line = (inputStream.slice(0, index).match(/\n/g) || "").length; - } - - return { - line: line, - column: column - }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - callLine = e.call && getLocation(e.call, input).line, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = callLine + 1; - this.callExtract = lines[callLine]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // @param str A string containing 'less' markup - // @param callback call `callback` when done. - // @param [additionalData] An optional map which can contains vars - a map (key, value) of variables to apply - // - parse: function (str, callback, additionalData) { - var root, line, lines, error = null, globalVars, modifyVars, preText = ""; - - i = j = currentPos = furthest = 0; - - globalVars = (additionalData && additionalData.globalVars) ? less.Parser.serializeVars(additionalData.globalVars) + '\n' : ''; - modifyVars = (additionalData && additionalData.modifyVars) ? '\n' + less.Parser.serializeVars(additionalData.modifyVars) : ''; - - if (globalVars || (additionalData && additionalData.banner)) { - preText = ((additionalData && additionalData.banner) ? additionalData.banner : "") + globalVars; - parser.imports.contentsIgnoredChars[env.currentFileInfo.filename] = preText.length; - } - - str = str.replace(/\r\n/g, '\n'); - // Remove potential UTF Byte Order Mark - input = str = preText + str.replace(/^\uFEFF/, '') + modifyVars; - parser.imports.contents[env.currentFileInfo.filename] = str; - - // Split the input into chunks. - chunks = (function (input) { - var len = input.length, level = 0, parenLevel = 0, - lastOpening, lastOpeningParen, lastMultiComment, lastMultiCommentEndBrace, - chunks = [], emitFrom = 0, - parserCurrentIndex, currentChunkStartIndex, cc, cc2, matched; - - function fail(msg, index) { - error = new(LessError)({ - index: index || parserCurrentIndex, - type: 'Parse', - message: msg, - filename: env.currentFileInfo.filename - }, env); - } - - function emitChunk(force) { - var len = parserCurrentIndex - emitFrom; - if (((len < 512) && !force) || !len) { - return; - } - chunks.push(input.slice(emitFrom, parserCurrentIndex + 1)); - emitFrom = parserCurrentIndex + 1; - } - - for (parserCurrentIndex = 0; parserCurrentIndex < len; parserCurrentIndex++) { - cc = input.charCodeAt(parserCurrentIndex); - if (((cc >= 97) && (cc <= 122)) || (cc < 34)) { - // a-z or whitespace - continue; - } - - switch (cc) { - case 40: // ( - parenLevel++; - lastOpeningParen = parserCurrentIndex; - continue; - case 41: // ) - if (--parenLevel < 0) { - return fail("missing opening `(`"); - } - continue; - case 59: // ; - if (!parenLevel) { emitChunk(); } - continue; - case 123: // { - level++; - lastOpening = parserCurrentIndex; - continue; - case 125: // } - if (--level < 0) { - return fail("missing opening `{`"); - } - if (!level) { emitChunk(); } - continue; - case 92: // \ - if (parserCurrentIndex < len - 1) { parserCurrentIndex++; continue; } - return fail("unescaped `\\`"); - case 34: - case 39: - case 96: // ", ' and ` - matched = 0; - currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 1; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 > 96) { continue; } - if (cc2 == cc) { matched = 1; break; } - if (cc2 == 92) { // \ - if (parserCurrentIndex == len - 1) { - return fail("unescaped `\\`"); - } - parserCurrentIndex++; - } - } - if (matched) { continue; } - return fail("unmatched `" + String.fromCharCode(cc) + "`", currentChunkStartIndex); - case 47: // /, check for comment - if (parenLevel || (parserCurrentIndex == len - 1)) { continue; } - cc2 = input.charCodeAt(parserCurrentIndex + 1); - if (cc2 == 47) { - // //, find lnfeed - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if ((cc2 <= 13) && ((cc2 == 10) || (cc2 == 13))) { break; } - } - } else if (cc2 == 42) { - // /*, find */ - lastMultiComment = currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len - 1; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 == 125) { lastMultiCommentEndBrace = parserCurrentIndex; } - if (cc2 != 42) { continue; } - if (input.charCodeAt(parserCurrentIndex + 1) == 47) { break; } - } - if (parserCurrentIndex == len - 1) { - return fail("missing closing `*/`", currentChunkStartIndex); - } - parserCurrentIndex++; - } - continue; - case 42: // *, check for unmatched */ - if ((parserCurrentIndex < len - 1) && (input.charCodeAt(parserCurrentIndex + 1) == 47)) { - return fail("unmatched `/*`"); - } - continue; - } - } - - if (level !== 0) { - if ((lastMultiComment > lastOpening) && (lastMultiCommentEndBrace > lastMultiComment)) { - return fail("missing closing `}` or `*/`", lastOpening); - } else { - return fail("missing closing `}`", lastOpening); - } - } else if (parenLevel !== 0) { - return fail("missing closing `)`", lastOpeningParen); - } - - emitChunk(true); - return chunks; - })(str); - - if (error) { - return callback(new(LessError)(error, env)); - } - - current = chunks[0]; - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)(null, this.parsers.primary()); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - return function (options, variables) { - options = options || {}; - var evaldRoot, - css, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, null, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var preEvalVisitors = [], - visitors = [ - new(tree.joinSelectorVisitor)(), - new(tree.processExtendsVisitor)(), - new(tree.toCSSVisitor)({compress: Boolean(options.compress)}) - ], i, root = this; - - if (options.plugins) { - for(i =0; i < options.plugins.length; i++) { - if (options.plugins[i].isPreEvalVisitor) { - preEvalVisitors.push(options.plugins[i]); - } else { - if (options.plugins[i].isPreVisitor) { - visitors.splice(0, 0, options.plugins[i]); - } else { - visitors.push(options.plugins[i]); - } - } - } - } - - for(i = 0; i < preEvalVisitors.length; i++) { - preEvalVisitors[i].run(root); - } - - evaldRoot = evaluate.call(root, evalEnv); - - for(i = 0; i < visitors.length; i++) { - visitors[i].run(evaldRoot); - } - - if (options.sourceMap) { - evaldRoot = new tree.sourceMapOutput( - { - contentsIgnoredCharsMap: parser.imports.contentsIgnoredChars, - writeSourceMap: options.writeSourceMap, - rootNode: evaldRoot, - contentsMap: parser.imports.contents, - sourceMapFilename: options.sourceMapFilename, - sourceMapURL: options.sourceMapURL, - outputFilename: options.sourceMapOutputFilename, - sourceMapBasepath: options.sourceMapBasepath, - sourceMapRootpath: options.sourceMapRootpath, - outputSourceFiles: options.outputSourceFiles, - sourceMapGenerator: options.sourceMapGenerator - }); - } - - css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits), - numPrecision: 8}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.cleancss && less.mode === 'node') { - var CleanCSS = require('clean-css'), - cleancssOptions = options.cleancssOptions || {}; - - if (cleancssOptions.keepSpecialComments === undefined) { - cleancssOptions.keepSpecialComments = "*"; - } - cleancssOptions.processImport = false; - cleancssOptions.noRebase = true; - if (cleancssOptions.noAdvanced === undefined) { - cleancssOptions.noAdvanced = true; - } - - return new CleanCSS(cleancssOptions).minify(css); - } else if (options.compress) { - return css.replace(/(^(\s)+)|((\s)+$)/g, ""); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - var loc = getLocation(i, input); - lines = input.split('\n'); - line = loc.line + 1; - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: loc.column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - return callback(e); - } - else { - return callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - return finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: parsers = { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var mixin = this.mixin, $re = _$re, root = [], node; - - while (current) - { - node = this.extendRule() || mixin.definition() || this.rule() || this.ruleset() || - mixin.call() || this.comment() || this.directive(); - if (node) { - root.push(node); - } else { - if (!($re(/^[\s\n]+/) || $re(/^;+/))) { - break; - } - } - } - - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') { return; } - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($re(/^\/\/.*/), true, i, env.currentFileInfo); - } - comment = $re(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/); - if (comment) { - return new(tree.Comment)(comment, false, i, env.currentFileInfo); - } - }, - - comments: function () { - var comment, comments = []; - - while(true) { - comment = this.comment(); - if (!comment) { - break; - } - comments.push(comment); - } - - return comments; - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; } - - if (e) { $char('~'); } - - str = $re(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/); - if (str) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - k = $re(/^[_A-Za-z-][_A-Za-z0-9-]*/); - if (k) { - var color = tree.Color.fromKeyword(k); - if (color) { - return color; - } - return new(tree.Keyword)(k); - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(current); - if (!name) { return; } - - name = name[1]; - nameLC = name.toLowerCase(); - if (nameLC === 'url') { - return null; - } - - i += name.length; - - if (nameLC === 'alpha') { - alpha_ret = parsers.alpha(); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $char('('); // Parse the '(' and consume whitespace. - - args = this.arguments(); - - if (! $char(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (true) { - arg = this.assignment() || parsers.expression(); - if (!arg) { - break; - } - args.push(arg); - if (! $char(',')) { - break; - } - } - return args; - }, - literal: function () { - return this.dimension() || - this.color() || - this.quoted() || - this.unicodeDescriptor(); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - key = $re(/^\w+(?=\s?=)/i); - if (!key) { - return; - } - if (!$char('=')) { - return; - } - value = parsers.entity(); - if (value) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$re(/^url\(/)) { - return; - } - - value = this.quoted() || this.variable() || - $re(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expectChar(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $re(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var curly, index = i; - - if (input.charAt(i) === '@' && (curly = $re(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $re(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) { - return; - } - - value = $re(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/); - if (value) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - ud = $re(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/); - if (ud) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '`') { return; } - if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) { - error("You are using JavaScript, which has been disabled."); - } - - if (e) { $char('~'); } - - str = $re(/^`([^`]*)`/); - if (str) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*:/))) { return name[1]; } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList, extend; - - if (!(isRule ? $re(/^&:extend\(/) : $re(/^:extend\(/))) { return; } - - do { - option = null; - elements = null; - while (! (option = $re(/^(all)(?=\s*(\)|,))/))) { - e = this.element(); - if (!e) { break; } - if (elements) { elements.push(e); } else { elements = [ e ]; } - } - - option = option && option[1]; - - extend = new(tree.Extend)(new(tree.Selector)(elements), option, index); - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - - } while($char(",")); - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var s = input.charAt(i), important = false, index = i, elemIndex, - elements, elem, e, c, args; - - if (s !== '.' && s !== '#') { return; } - - save(); // stop us absorbing part of an invalid selector - - while (true) { - elemIndex = i; - e = $re(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/); - if (!e) { - break; - } - elem = new(tree.Element)(c, e, elemIndex, env.currentFileInfo); - if (elements) { elements.push(elem); } else { elements = [ elem ]; } - c = $char('>'); - } - - if (elements) { - if ($char('(')) { - args = this.args(true).args; - expectChar(')'); - } - - if (parsers.important()) { - important = true; - } - - if (parsers.end()) { - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - } - - restore(); - }, - args: function (isCall) { - var parsers = parser.parsers, entities = parsers.entities, - returner = { args:null, variadic: false }, - expressions = [], argsSemiColon = [], argsComma = [], - isSemiColonSeperated, expressionContainsNamed, name, nameLoop, value, arg; - - while (true) { - if (isCall) { - arg = parsers.expression(); - } else { - parsers.comments(); - if (input.charAt(i) === '.' && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = entities.variable() || entities.literal() || entities.keyword(); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value.length == 1) { - val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($char(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(parsers.expression); - nameLoop = (name = val.name); - } else if (!isCall && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($char(',')) { - continue; - } - - if ($char(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) { - return; - } - - save(); - - match = $re(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/); - if (match) { - name = match[1]; - - var argInfo = this.args(false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$char(')')) { - furthest = i; - restore(); - } - - parsers.comments(); - - if ($re(/^when/)) { // Guard - cond = expect(parsers.conditions, 'expected condition'); - } - - ruleset = parsers.block(); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - var entities = this.entities; - - return entities.literal() || entities.variable() || entities.url() || - entities.call() || entities.keyword() || entities.javascript() || - this.comment(); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $char(';') || peekChar('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $re(/^\(opacity=/i)) { return; } - value = $re(/^\d+/) || this.entities.variable(); - if (value) { - expectChar(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, c, v, index = i; - - c = this.combinator(); - - e = $re(/^(?:\d+\.\d+|\d+)%/) || $re(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $char('*') || $char('&') || this.attribute() || $re(/^\([^()@]+\)/) || $re(/^[\.#](?=@)/) || - this.entities.variableCurly(); - - if (! e) { - if ($char('(')) { - if ((v = this.selector()) && $char(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, index, env.currentFileInfo); } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|' || c === '^') { - i++; - if (input.charAt(i) === '^') { - c = '^^'; - i++; - } - while (isWhitespace(input, i)) { i++; } - return new(tree.Combinator)(c); - } else if (isWhitespace(input, i - 1)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - // - // A CSS selector (see selector below) - // with less extensions e.g. the ability to extend and guard - // - lessSelector: function () { - return this.selector(true); - }, - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function (isLess) { - var index = i, $re = _$re, elements, extendList, c, e, extend, when, condition; - - while ((isLess && (extend = this.extend())) || (isLess && (when = $re(/^when/))) || (e = this.element())) { - if (when) { - condition = expect(this.conditions, 'expected condition'); - } else if (condition) { - error("CSS guard can only be used at the end of selector"); - } else if (extend) { - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - } else { - if (extendList) { error("Extend can only be used at the end of selector"); } - c = input.charAt(i); - if (elements) { elements.push(e); } else { elements = [ e ]; } - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { - break; - } - } - - if (elements) { return new(tree.Selector)(elements, extendList, condition, index, env.currentFileInfo); } - if (extendList) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - if (! $char('[')) { return; } - - var entities = this.entities, - key, val, op; - - if (!(key = entities.variableCurly())) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - op = $re(/^[|~*$^]?=/); - if (op) { - val = entities.quoted() || $re(/^[0-9]+%/) || $re(/^[\w-]+/) || entities.variableCurly(); - } - - expectChar(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($char('{') && (content = this.primary()) && $char('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors, s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - while (true) { - s = this.lessSelector(); - if (!s) { - break; - } - if (selectors) { selectors.push(s); } else { selectors = [ s ]; } - this.comments(); - if (s.condition && selectors.length > 1) { - error("Guards are only currently allowed on a single selector."); - } - if (! $char(',')) { break; } - if (s.condition) { - error("Guards are only currently allowed on a single selector."); - } - this.comments(); - } - - if (selectors && (rules = this.block())) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) { - ruleset.debugInfo = debugInfo; - } - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, c = input.charAt(i), important, merge = false; - save(); - - if (c === '.' || c === '#' || c === '&') { return; } - - name = this.variable() || this.ruleProperty(); - if (name) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || (name.charAt && (name.charAt(0) === '@'))) ? - (this.value() || this.anonymousValue()) : - (this.anonymousValue() || this.value()); - - important = this.important(); - - // a name returned by this.ruleProperty() is always an array of the form: - // [string-1, ..., string-n, ""] or [string-1, ..., string-n, "+"] - // where each item is a tree.Keyword or tree.Variable - merge = name.pop && (name.pop().value === "+"); - - if (value && this.end()) { - return new (tree.Rule)(name, value, important, merge, memo, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } - }, - anonymousValue: function () { - var match; - match = /^([^@+\/'"*`(;{}-]*);/.exec(current); - if (match) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $re(/^@import?\s+/); - - var options = (dir ? this.importOptions() : null) || {}; - - if (dir && (path = this.entities.quoted() || this.entities.url())) { - features = this.mediaFeatures(); - if ($char(';')) { - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $char('(')) { return null; } - do { - o = this.importOption(); - if (o) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $char(',')) { break; } - } - } while (o); - expectChar(')'); - return options; - }, - - importOption: function() { - var opt = $re(/^(less|css|multiple|once|inline|reference)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var entities = this.entities, nodes = [], e, p; - do { - e = entities.keyword() || entities.variable(); - if (e) { - nodes.push(e); - } else if ($char('(')) { - p = this.property(); - e = this.value(); - if ($char(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null; } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var entities = this.entities, features = [], e; - do { - e = this.mediaFeature(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } else { - e = entities.variable(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - if ($re(/^@media/)) { - features = this.mediaFeatures(); - - rules = this.block(); - if (rules) { - media = new(tree.Media)(rules, features, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - media.debugInfo = debugInfo; - } - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var index = i, name, value, rules, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression, identifier; - - if (input.charAt(i) !== '@') { return; } - - value = this['import']() || this.media(); - if (value) { - return value; - } - - save(); - - name = $re(/^@[a-z-]+/); - - if (!name) { return; } - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@host": - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - identifier = ($re(/^[^{]+/) || '').trim(); - if (identifier) { - name += " " + identifier; - } - } - - if (hasBlock) { - rules = this.block(); - if (rules) { - return new(tree.Directive)(name, rules, index, env.currentFileInfo); - } - } else { - value = hasExpression ? this.expression() : this.entity(); - if (value && $char(';')) { - var directive = new(tree.Directive)(name, value, index, env.currentFileInfo); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = []; - - do { - e = this.expression(); - if (e) { - expressions.push(e); - if (! $char(',')) { break; } - } - } while(e); - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $re(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($char('(')) { - a = this.addition(); - if (a) { - e = new(tree.Expression)([a]); - expectChar(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced; - m = this.operand(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - if (peek(/^\/[*\/]/)) { - break; - } - op = $char('/') || $char('*'); - - if (!op) { break; } - - a = this.operand(); - - if (!a) { break; } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - m = this.multiplication(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - op = $re(/^[-+]\s+/) || (!isSpaced && ($char('+') || $char('-'))); - if (!op) { - break; - } - a = this.multiplication(); - if (!a) { - break; - } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - a = this.condition(); - if (a) { - while (true) { - if (!peek(/^,\s*(not\s*)?\(/) || !$char(',')) { - break; - } - b = this.condition(); - if (!b) { - break; - } - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var entities = this.entities, index = i, negate = false, - a, b, c, op; - - if ($re(/^not/)) { negate = true; } - expectChar('('); - a = this.addition() || entities.keyword() || entities.quoted(); - if (a) { - op = $re(/^(?:>=|<=|=<|[<=>])/); - if (op) { - b = this.addition() || entities.keyword() || entities.quoted(); - if (b) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expectChar(')'); - return $re(/^and/) ? new(tree.Condition)('and', c, this.condition()) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var entities = this.entities, - p = input.charAt(i + 1), negate; - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $char('-'); } - var o = this.sub() || entities.dimension() || - entities.color() || entities.variable() || - entities.call(); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var entities = [], e, delim; - - do { - e = this.addition() || this.entity(); - if (e) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/)) { - delim = $char('/'); - if (delim) { - entities.push(new(tree.Anonymous)(delim)); - } - } - } - } while (e); - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name = $re(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/); - if (name) { - return name[1]; - } - }, - ruleProperty: function () { - var c = current, name = [], index = [], length = 0, s, k; - - function match(re) { - var a = re.exec(c); - if (a) { - index.push(i + length); - length += a[0].length; - c = c.slice(a[1].length); - return name.push(a[1]); - } - } - - match(/^(\*?)/); - while (match(/^((?:[\w-]+)|(?:@\{[\w-]+\}))/)); // ! - if ((name.length > 1) && match(/^\s*(\+?)\s*:/)) { - // at last, we have the complete match now. move forward, - // convert name particles to tree objects and return: - skipWhitespace(length); - if (name[0] === '') { - name.shift(); - index.shift(); - } - for (k = 0; k < name.length; k++) { - s = name[k]; - name[k] = (s.charAt(0) !== '@') - ? new(tree.Keyword)(s) - : new(tree.Variable)('@' + s.slice(2, -1), - index[k], env.currentFileInfo); - } - return name; - } - } - } - }; - return parser; -}; -less.Parser.serializeVars = function(vars) { - var s = ''; - - for (var name in vars) { - if (Object.hasOwnProperty.call(vars, name)) { - var value = vars[name]; - s += ((name[0] === '@') ? '' : '@') + name +': '+ value + - ((('' + value).slice(-1) === ';') ? '' : ';'); - } - } - - return s; -}; - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 255); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; } - else if (h * 2 < 1) { return m2; } - else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; } - else { return m1; } - } - - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - // filter: saturate(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if (color.luma() < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - /*jshint loopfunc:true */ - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - if(!(val instanceof tree.Dimension)) { - throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") }; - } - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return _math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _minmax: function (isMin, args) { - args = Array.prototype.slice.call(args); - switch(args.length) { - case 0: throw { type: "Argument", message: "one or more arguments required" }; - case 1: return args[0]; - } - var i, j, current, currentUnified, referenceUnified, unit, - order = [], // elems only contains original argument values. - values = {}; // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - for (i = 0; i < args.length; i++) { - current = args[i]; - if (!(current instanceof tree.Dimension)) { - order.push(current); - continue; - } - currentUnified = current.unify(); - unit = currentUnified.unit.toString(); - j = values[unit]; - if (j === undefined) { - values[unit] = order.length; - order.push(current); - continue; - } - referenceUnified = order[j].unify(); - if ( isMin && currentUnified.value < referenceUnified.value || - !isMin && currentUnified.value > referenceUnified.value) { - order[j] = current; - } - } - if (order.length == 1) { - return order[0]; - } - args = order.map(function (a) { return a.toCSS(this.env); }) - .join(this.env.compress ? "," : ", "); - return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")"); - }, - min: function () { - return this._minmax(true, arguments); - }, - max: function () { - return this._minmax(false, arguments); - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - var colorCandidate = n.value, - returnColor; - returnColor = tree.Color.fromKeyword(colorCandidate); - if (returnColor) { - return returnColor; - } - if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) { - return new(tree.Color)(colorCandidate.slice(1)); - } - throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" }; - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - return Array.isArray(values.value) - ? values.value[index] : Array(values)[index]; - }, - length: function(values) { - var n = Array.isArray(values.value) ? values.value.length : 1; - return new tree.Dimension(n); - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require('fs'), - path = require('path'), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) { mimetype += ';base64'; } - } - else { - useBase64 = /;base64$/.test(mimetype); - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "\"data:" + mimetype + ',' + buf + "\""; - return new(tree.URL)(new(tree.Anonymous)(uri)); - }, - - "svg-gradient": function(direction) { - - function throwArgumentDescriptor() { - throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" }; - } - - if (arguments.length < 3) { - throwArgumentDescriptor(); - } - var stops = Array.prototype.slice.call(arguments, 1), - gradientDirectionSvg, - gradientType = "linear", - rectangleDimension = 'x="0" y="0" width="1" height="1"', - useBase64 = true, - renderEnv = {compress: false}, - returner, - directionValue = direction.toCSS(renderEnv), - i, color, position, positionValue, alpha; - - switch (directionValue) { - case "to bottom": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - gradientType = "radial"; - gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" }; - } - returner = '' + - '' + - '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>'; - - for (i = 0; i < stops.length; i+= 1) { - if (stops[i].value) { - color = stops[i].value[0]; - position = stops[i].value[1]; - } else { - color = stops[i]; - position = undefined; - } - - if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) { - throwArgumentDescriptor(); - } - positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%"; - alpha = color.alpha; - returner += ''; - } - returner += '' + - ''; - - if (useBase64) { - try { - returner = require('./encoder').encodeBase64(returner); // TODO browser implementation - } catch(e) { - useBase64 = false; - } - } - - returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'"; - return new(tree.URL)(new(tree.Anonymous)(returner)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -// Math - -var mathFunctions = { - // name, unit - ceil: null, - floor: null, - sqrt: null, - abs: null, - tan: "", - sin: "", - cos: "", - atan: "rad", - asin: "rad", - acos: "rad" -}; - -function _math(fn, unit, n) { - if (!(n instanceof tree.Dimension)) { - throw { type: "Argument", message: "argument must be a number" }; - } - if (unit == null) { - unit = n.unit; - } else { - n = n.unify(); - } - return new(tree.Dimension)(fn(parseFloat(n.value)), unit); -} - -// ~ End of Math - -// Color Blending -// ref: http://www.w3.org/TR/compositing-1 - -function colorBlend(mode, color1, color2) { - var ab = color1.alpha, cb, // backdrop - as = color2.alpha, cs, // source - ar, cr, r = []; // result - - ar = as + ab * (1 - as); - for (var i = 0; i < 3; i++) { - cb = color1.rgb[i] / 255; - cs = color2.rgb[i] / 255; - cr = mode(cb, cs); - if (ar) { - cr = (as * cs + ab * (cb - - as * (cb + cs - cr))) / ar; - } - r[i] = cr * 255; - } - - return new(tree.Color)(r, ar); -} - -var colorBlendMode = { - multiply: function(cb, cs) { - return cb * cs; - }, - screen: function(cb, cs) { - return cb + cs - cb * cs; - }, - overlay: function(cb, cs) { - cb *= 2; - return (cb <= 1) - ? colorBlendMode.multiply(cb, cs) - : colorBlendMode.screen(cb - 1, cs); - }, - softlight: function(cb, cs) { - var d = 1, e = cb; - if (cs > 0.5) { - e = 1; - d = (cb > 0.25) ? Math.sqrt(cb) - : ((16 * cb - 12) * cb + 4) * cb; - } - return cb - (1 - 2 * cs) * e * (d - cb); - }, - hardlight: function(cb, cs) { - return colorBlendMode.overlay(cs, cb); - }, - difference: function(cb, cs) { - return Math.abs(cb - cs); - }, - exclusion: function(cb, cs) { - return cb + cs - 2 * cb * cs; - }, - - // non-w3c functions: - average: function(cb, cs) { - return (cb + cs) / 2; - }, - negation: function(cb, cs) { - return 1 - Math.abs(cb + cs - 1); - } -}; - -// ~ End of Color Blending - -tree.defaultFunc = { - eval: function () { - var v = this.value_, e = this.error_; - if (e) { - throw e; - } - if (v != null) { - return v ? tree.True : tree.False; - } - }, - value: function (v) { - this.value_ = v; - }, - error: function (e) { - this.error_ = e; - }, - reset: function () { - this.value_ = this.error_ = null; - } -}; - -function initFunctions() { - var f, tf = tree.functions; - - // math - for (f in mathFunctions) { - if (mathFunctions.hasOwnProperty(f)) { - tf[f] = _math.bind(null, Math[f], mathFunctions[f]); - } - } - - // color blending - for (f in colorBlendMode) { - if (colorBlendMode.hasOwnProperty(f)) { - tf[f] = colorBlend.bind(null, colorBlendMode[f]); - } - } - - // default - f = tree.defaultFunc; - tf["default"] = f.eval.bind(f); - -} initFunctions(); - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.fround = function(env, value) { - var p; - if (env && (env.numPrecision != null)) { - p = Math.pow(10, env.numPrecision); - return Math.round(value * p) / p; - } else { - return value; - } -}; - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); - -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); - -(function (tree) { - -tree.debugInfo = function(env, ctx, lineSeperator) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:\/\\])/g, function (a) { - if (a == '\\') { - a = '\/'; - } - return '\\' + a; - }) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - r = fun.call(obj, obj[i]); - if (r) { return r; } - } - return null; -}; - -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false); }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -tree.toCSS = function (env) { - var strs = []; - this.genCSS(env, { - add: function(chunk, fileInfo, index) { - strs.push(chunk); - }, - isEmpty: function () { - return strs.length === 0; - } - }); - return strs.join(''); -}; - -tree.outputRuleset = function (env, output, rules) { - var ruleCnt = rules.length, i; - env.tabLevel = (env.tabLevel | 0) + 1; - - // Compressed - if (env.compress) { - output.add('{'); - for (i = 0; i < ruleCnt; i++) { - rules[i].genCSS(env, output); - } - output.add('}'); - env.tabLevel--; - return; - } - - // Non-compressed - var tabSetStr = '\n' + Array(env.tabLevel).join(" "), tabRuleStr = tabSetStr + " "; - if (!ruleCnt) { - output.add(" {" + tabSetStr + '}'); - } else { - output.add(" {" + tabRuleStr); - rules[0].genCSS(env, output); - for (i = 1; i < ruleCnt; i++) { - output.add(tabRuleStr); - rules[i].genCSS(env, output); - } - output.add(tabSetStr + '}'); - } - - env.tabLevel--; -}; - -})(require('./tree')); - -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } - return this; - }, - genCSS: function (env, output) { - output.add("alpha(opacity="); - - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - - output.add(")"); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Anonymous = function (string, index, currentFileInfo, mapLines) { - this.value = string.value || string; - this.index = index; - this.mapLines = mapLines; - this.currentFileInfo = currentFileInfo; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - eval: function () { - return new tree.Anonymous(this.value, this.index, this.currentFileInfo, this.mapLines); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - }, - genCSS: function (env, output) { - output.add(this.value, this.currentFileInfo, this.index, this.mapLines); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - }, - genCSS: function (env, output) { - output.add(this.key + '='); - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - if (this.args) { - this.args = visitor.visitArray(this.args); - } - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - return new tree.Call(this.name, args, this.index, this.currentFileInfo); - }, - - genCSS: function (env, output) { - output.add(this.name + "(", this.currentFileInfo, this.index); - - for(var i = 0; i < this.args.length; i++) { - this.args[i].genCSS(env, output); - if (i + 1 < this.args.length) { - output.add(", "); - } - } - - output.add(")"); - }, - - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; - -var transparentKeyword = "transparent"; - -tree.Color.prototype = { - type: "Color", - eval: function () { return this; }, - luma: function () { return (0.2126 * this.rgb[0] / 255) + (0.7152 * this.rgb[1] / 255) + (0.0722 * this.rgb[2] / 255); }, - - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress, - alpha = tree.fround(env, this.alpha); - - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - if (alpha < 1) { - if (alpha === 0 && this.isTransparentKeyword) { - return transparentKeyword; - } - return "rgba(" + this.rgb.map(function (c) { - return clamp(Math.round(c), 255); - }).concat(clamp(alpha, 1)) - .join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.toRGB(); - - if (compress) { - var splitcolor = color.split(''); - - // Convert color to short format - if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) { - color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5]; - } - } - - return color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var rgb = []; - var alpha = this.alpha * (1 - other.alpha) + other.alpha; - for (var c = 0; c < 3; c++) { - rgb[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(rgb, alpha); - }, - - toRGB: function () { - return toHex(this.rgb); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - return toHex([this.alpha * 255].concat(this.rgb)); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - -tree.Color.fromKeyword = function(keyword) { - keyword = keyword.toLowerCase(); - - if (tree.colors.hasOwnProperty(keyword)) { - // detect named color - return new(tree.Color)(tree.colors[keyword].slice(1)); - } - if (keyword === transparentKeyword) { - var transparent = new(tree.Color)([0, 0, 0], 0); - transparent.isTransparentKeyword = true; - return transparent; - } -}; - -function toHex(v) { - return '#' + v.map(function (c) { - c = clamp(Math.round(c), 255); - return (c < 16 ? '0' : '') + c.toString(16); - }).join(''); -} - -function clamp(v, max) { - return Math.min(Math.max(v, 0), max); -} - -})(require('../tree')); - -(function (tree) { - -tree.Comment = function (value, silent, index, currentFileInfo) { - this.value = value; - this.silent = !!silent; - this.currentFileInfo = currentFileInfo; -}; -tree.Comment.prototype = { - type: "Comment", - genCSS: function (env, output) { - if (this.debugInfo) { - output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index); - } - output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n - }, - toCSS: tree.toCSS, - isSilent: function(env) { - var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced), - isCompressed = env.compress && !this.value.match(/^\/\*!/); - return this.silent || isReference || isCompressed; - }, - eval: function () { return this; }, - markReferenced: function () { - this.isReferenced = true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<' || op === '<='; - case 0: return op === '=' || op === '>=' || op === '=<' || op === '<='; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); - -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - genCSS: function (env, output) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = tree.fround(env, this.value), - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && this.unit.isLength()) { - output.add(strValue); - return; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - output.add(strValue); - this.unit.genCSS(env, output); - }, - toCSS: tree.toCSS, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - /*jshint noempty:false */ - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a = this.unify(), b = other.unify(), - aValue = a.value, bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - if (!b.unit.isEmpty() && a.unit.compare(b.unit) !== 0) { - return -1; - } - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'm', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, targetUnit, derivedConversions = {}, applyUnit; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - applyUnit = function (atomicUnit, denominator) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(applyUnit); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - genCSS: function (env, output) { - if (this.numerator.length >= 1) { - output.add(this.numerator[0]); - } else - if (this.denominator.length >= 1) { - output.add(this.denominator[0]); - } else - if ((!env || !env.strictUnits) && this.backupUnit) { - output.add(this.backupUnit); - } - }, - toCSS: tree.toCSS, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isLength: function () { - return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/)); - }, - - isEmpty: function () { - return this.numerator.length === 0 && this.denominator.length === 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length === 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, result = {}, mapUnit; - - mapUnit = function (atomicUnit) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }; - - for (var groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(mapUnit); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Directive = function (name, value, index, currentFileInfo) { - this.name = name; - - if (Array.isArray(value)) { - this.rules = [new(tree.Ruleset)(null, value)]; - this.rules[0].allowImports = true; - } else { - this.value = value; - } - this.index = index; - this.currentFileInfo = currentFileInfo; - -}; -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - if (this.value) { - this.value = visitor.visit(this.value); - } - }, - genCSS: function (env, output) { - output.add(this.name, this.currentFileInfo, this.index); - if (this.rules) { - tree.outputRuleset(env, output, this.rules); - } else { - output.add(' '); - this.value.genCSS(env, output); - output.add(';'); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var evaldDirective = this; - if (this.rules) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name, null, this.index, this.currentFileInfo); - evaldDirective.rules = [this.rules[0].eval(env)]; - evaldDirective.rules[0].root = true; - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - markReferenced: function () { - var i, rules; - this.isReferenced = true; - if (this.rules) { - rules = this.rules[0].rules; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Element = function (combinator, value, index, currentFileInfo) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - var value = this.value; - this.combinator = visitor.visit(this.combinator); - if (typeof value === "object") { - this.value = visitor.visit(value); - } - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index, - this.currentFileInfo); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env), this.currentFileInfo, this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value === '' && this.combinator.value.charAt(0) === '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - _outputMap: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : ' + ', - '~' : ' ~ ', - '>' : ' > ', - '|' : '|', - '^' : ' ^ ', - '^^' : ' ^^ ' - }, - _outputMapCompressed: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : '+', - '~' : '~', - '>' : '>', - '|' : '|', - '^' : '^', - '^^' : '^^' - }, - genCSS: function (env, output) { - output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - genCSS: function (env, output) { - for(var i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i + 1 < this.value.length) { - output.add(" "); - } - } - }, - toCSS: tree.toCSS, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - this.object_id = tree.Extend.next_id++; - this.parent_ids = [this.object_id]; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; -tree.Extend.next_id = 0; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i, - selectorElements; - - for(i = 0; i < selectors.length; i++) { - selectorElements = selectors[i].elements; - // duplicate the logic in genCSS function inside the selector node. - // future TODO - move both logics into the selector joiner visitor - if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") { - selectorElements[0].combinator.value = ' '; - } - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); - -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined || this.options.inline) { - this.css = !this.options.less || this.options.inline; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - this.path = visitor.visit(this.path); - if (!this.options.inline && this.root) { - this.root = visitor.visit(this.root); - } - }, - genCSS: function (env, output) { - if (this.css) { - output.add("@import ", this.currentFileInfo, this.index); - this.path.genCSS(env, output); - if (this.features) { - output.add(" "); - this.features.genCSS(env, output); - } - output.add(';'); - } - }, - toCSS: tree.toCSS, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - - if (!(path instanceof tree.URL)) { - if (rootpath) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath +pathValue; - } - } - path.value = env.normalizePath(path.value); - } - - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { return []; } - - if (this.options.inline) { - //todo needs to reference css file not import - var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true); - return this.features ? new(tree.Media)([contents], this.features.value) : [contents]; - } else if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" , - index: this.index }; - } - - var variables = env.frames[0].variables(); - for (var k in variables) { - if (variables.hasOwnProperty(k)) { - /*jshint loopfunc:true */ - context[k.slice(1)] = { - value: variables[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message.replace(/["]/g, "'") + "'" , - index: this.index }; - } - if (typeof(result) === 'number') { - return new(tree.Dimension)(result); - } else if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Keyword = function (value) { this.value = value; }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); - -(function (tree) { - -tree.Media = function (value, features, index, currentFileInfo) { - this.index = index; - this.currentFileInfo = currentFileInfo; - - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.rules = [new(tree.Ruleset)(selectors, value)]; - this.rules[0].allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - }, - genCSS: function (env, output) { - output.add('@media ', this.currentFileInfo, this.index); - this.features.genCSS(env, output); - tree.outputRuleset(env, output, this.rules); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)(null, [], this.index, this.currentFileInfo); - if(this.debugInfo) { - this.rules[0].debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.rules[0]); - media.rules = [this.rules[0].eval(env)]; - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env); - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', this.index, this.currentFileInfo), - sels = [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)]; - sels[0].mediaEmpty = true; - return sels; - }, - markReferenced: function () { - var i, rules = this.rules[0].rules; - this.isReferenced = true; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])]; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = (args && args.length) ? args : null; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - if (this.selector) { - this.selector = visitor.visit(this.selector); - } - if (this.arguments) { - this.arguments = visitor.visitArray(this.arguments); - } - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule, - candidates = [], candidate, conditionResult = [], defaultFunc = tree.defaultFunc, - defaultResult, defNone = 0, defTrue = 1, defFalse = 2, count; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - - // To make `default()` function independent of definition order we have two "subpasses" here. - // At first we evaluate each guard *twice* (with `default() == true` and `default() == false`), - // and build candidate list with corresponding flags. Then, when we know all possible matches, - // we make a final decision. - - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - - if (mixin.matchArgs(args, env)) { - candidate = {mixin: mixin, group: defNone}; - - if (mixin.matchCondition) { - for (f = 0; f < 2; f++) { - defaultFunc.value(f); - conditionResult[f] = mixin.matchCondition(args, env); - } - if (conditionResult[0] || conditionResult[1]) { - if (conditionResult[0] != conditionResult[1]) { - candidate.group = conditionResult[1] ? - defTrue : defFalse; - } - - candidates.push(candidate); - } - } - else { - candidates.push(candidate); - } - - match = true; - } - } - - defaultFunc.reset(); - - count = [0, 0, 0]; - for (m = 0; m < candidates.length; m++) { - count[candidates[m].group]++; - } - - if (count[defNone] > 0) { - defaultResult = defFalse; - } else { - defaultResult = defTrue; - if ((count[defTrue] + count[defFalse]) > 1) { - throw { type: 'Runtime', - message: 'Ambiguous use of `default()` found when matching for `' - + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - for (m = 0; m < candidates.length; m++) { - candidate = candidates[m].group; - if ((candidate === defNone) || (candidate === defaultResult)) { - try { - mixin = candidates[m].mixin; - if (!(mixin instanceof tree.mixin.Definition)) { - mixin = new tree.mixin.Definition("", [], mixin.rules, null, false); - mixin.originalRuleset = mixins[m].originalRuleset || mixins[m]; - } - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - } - - if (match) { - if (!this.currentFileInfo || !this.currentFileInfo.reference) { - for (i = 0; i < rules.length; i++) { - rule = rules[i]; - if (rule.markReferenced) { - rule.markReferenced(); - } - } - } - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - }, - format: function (args) { - return this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")"; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1; } - else { return count; } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - if (this.params && this.params.length) { - this.params = visitor.visitArray(this.params); - } - this.rules = visitor.visitArray(this.rules); - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - /*jshint boss:true */ - var frame = new(tree.Ruleset)(null, null), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.prependRule(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) { continue; } - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.prependRule(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.prependRule(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - rules, ruleset; - - frame.prependRule(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules); - ruleset.originalRuleset = this; - ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames))); - if (important) { - ruleset = this.parent.makeImportant.apply(ruleset); - } - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] // the parameter variables - .concat(this.frames) // the parent namespace/mixin frames - .concat(env.frames)))) { // the current environment frames - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (! this.variadic) { - if (argsLength < this.required) { return false; } - if (argsLength > this.params.length) { return false; } - } else { - if (argsLength < (this.required - 1)) { return false; } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('-'); - this.value.genCSS(env, output); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env); - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - a = a.toColor(); - } - if (b instanceof tree.Dimension && a instanceof tree.Color) { - b = b.toColor(); - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - genCSS: function (env, output) { - this.operands[0].genCSS(env, output); - if (this.isSpaced) { - output.add(" "); - } - output.add(this.op); - if (this.isSpaced) { - output.add(" "); - } - this.operands[1].genCSS(env, output); - }, - toCSS: tree.toCSS -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('('); - this.value.genCSS(env, output); - output.add(')'); - }, - toCSS: tree.toCSS, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - genCSS: function (env, output) { - if (!this.escaped) { - output.add(this.quote, this.currentFileInfo, this.index); - } - output.add(this.value); - if (!this.escaped) { - output.add(this.quote); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.merge = merge; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - this.variable = name.charAt && (name.charAt(0) === '@'); -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index); - try { - this.value.genCSS(env, output); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index); - }, - toCSS: tree.toCSS, - eval: function (env) { - var strictMathBypass = false, name = this.name; - if (typeof name !== "string") { - // expand 'primitive' name directly to get - // things faster (~10% for benchmark.less): - name = (name.length === 1) - && (name[0] instanceof tree.Keyword) - ? name[0].value : evalName(env, name); - } - if (name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - return new(tree.Rule)(name, - this.value.eval(env), - this.important, - this.merge, - this.index, this.currentFileInfo, this.inline); - } - catch(e) { - e.index = e.index || this.index; - throw e; - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.merge, - this.index, this.currentFileInfo, this.inline); - } -}; - -function evalName(env, name) { - var value = "", i, n = name.length, - output = {add: function (s) {value += s;}}; - for (i = 0; i < n; i++) { - name[i].eval(env).genCSS(env, output); - } - return value; -} - -})(require('../tree')); - -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - if (this.paths) { - visitor.visitArray(this.paths, true); - } else if (this.selectors) { - this.selectors = visitor.visitArray(this.selectors); - } - if (this.rules && this.rules.length) { - this.rules = visitor.visitArray(this.rules); - } - }, - eval: function (env) { - var thisSelectors = this.selectors, selectors, - selCnt, i, defaultFunc = tree.defaultFunc; - if (thisSelectors && (selCnt = thisSelectors.length)) { - selectors = []; - defaultFunc.error({ - type: "Syntax", - message: "it is currently only allowed in parametric mixin guards," - }); - for (i = 0; i < selCnt; i++) { - selectors.push(thisSelectors[i].eval(env)); - } - defaultFunc.reset(); - } - - var rules = this.rules ? this.rules.slice(0) : null, - ruleset = new(tree.Ruleset)(selectors, rules, this.strictImports), - rule, subRule; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - var envFrames = env.frames; - envFrames.unshift(ruleset); - - // currrent selectors - var envSelectors = env.selectors; - if (!envSelectors) { - env.selectors = envSelectors = []; - } - envSelectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - var rsRules = ruleset.rules, rsRuleCnt = rsRules ? rsRules.length : 0; - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Definition) { - rsRules[i].frames = envFrames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Call) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (i = 0; i < rsRules.length; i++) { - rule = rsRules[i]; - if (! (rule instanceof tree.mixin.Definition)) { - rsRules[i] = rule = rule.eval ? rule.eval(env) : rule; - // for rulesets, check if it is a css guard and can be removed - if (rule instanceof tree.Ruleset && rule.selectors && rule.selectors.length === 1) { - // check if it can be folded in (e.g. & where) - if (rule.selectors[0].isJustParentSelector()) { - rsRules.splice(i--, 1); - // cannot call if there is no selector, so we can just continue - if (!rule.selectors[0].evaldCondition) { - continue; - } - for(var j = 0; j < rule.rules.length; j++) { - subRule = rule.rules[j]; - if (!(subRule instanceof tree.Rule) || !subRule.variable) { - rsRules.splice(++i, 0, subRule); - } - } - } - } - } - } - - // Pop the stack - envFrames.shift(); - envSelectors.shift(); - - if (env.mediaBlocks) { - for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var rules = this.rules, i, importRules; - if (!rules) { return; } - - for (i = 0; i < rules.length; i++) { - if (rules[i] instanceof tree.Import) { - importRules = rules[i].eval(env); - if (importRules && importRules.length) { - rules.splice.apply(rules, [i, 1].concat(importRules)); - i+= importRules.length-1; - } else { - rules.splice(i, 1, importRules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - // lets you call a css selector with a guard - matchCondition: function (args, env) { - var lastSelector = this.selectors[this.selectors.length-1]; - if (!lastSelector.evaldCondition) { - return false; - } - if (lastSelector.condition && - !lastSelector.condition.eval( - new(tree.evalEnv)(env, - env.frames))) { - return false; - } - return true; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (!this._variables) { - this._variables = !this.rules ? {} : this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - return this._variables; - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (!this.rules) { return null; } - - var _Ruleset = tree.Ruleset, _MixinDefinition = tree.mixin.Definition, - filtRules = [], rules = this.rules, cnt = rules.length, - i, rule; - - for (i = 0; i < cnt; i++) { - rule = rules[i]; - if ((rule instanceof _Ruleset) || (rule instanceof _MixinDefinition)) { - filtRules.push(rule); - } - } - - return filtRules; - }, - prependRule: function (rule) { - var rules = this.rules; - if (rules) { rules.unshift(rule); } else { this.rules = [ rule ]; } - }, - find: function (selector, self) { - self = self || this; - var rules = [], match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key]; } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - match = selector.match(rule.selectors[j]); - if (match) { - if (selector.elements.length > match) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(match)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - this._lookups[key] = rules; - return rules; - }, - genCSS: function (env, output) { - var i, j, - ruleNodes = [], - rulesetNodes = [], - rulesetNodeCnt, - debugInfo, // Line number debugging - rule, - path; - - env.tabLevel = (env.tabLevel || 0); - - if (!this.root) { - env.tabLevel++; - } - - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "), - sep; - - for (i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - if (rule.rules || (rule instanceof tree.Media) || rule instanceof tree.Directive || (this.root && rule instanceof tree.Comment)) { - rulesetNodes.push(rule); - } else { - ruleNodes.push(rule); - } - } - - // If this is the root node, we don't render - // a selector, or {}. - if (!this.root) { - debugInfo = tree.debugInfo(env, this, tabSetStr); - - if (debugInfo) { - output.add(debugInfo); - output.add(tabSetStr); - } - - var paths = this.paths, pathCnt = paths.length, - pathSubCnt; - - sep = env.compress ? ',' : (',\n' + tabSetStr); - - for (i = 0; i < pathCnt; i++) { - path = paths[i]; - if (!(pathSubCnt = path.length)) { continue; } - if (i > 0) { output.add(sep); } - - env.firstSelector = true; - path[0].genCSS(env, output); - - env.firstSelector = false; - for (j = 1; j < pathSubCnt; j++) { - path[j].genCSS(env, output); - } - } - - output.add((env.compress ? '{' : ' {\n') + tabRuleStr); - } - - // Compile rules and rulesets - for (i = 0; i < ruleNodes.length; i++) { - rule = ruleNodes[i]; - - // @page{ directive ends up with root elements inside it, a mix of rules and rulesets - // In this instance we do not know whether it is the last property - if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) { - env.lastRule = true; - } - - if (rule.genCSS) { - rule.genCSS(env, output); - } else if (rule.value) { - output.add(rule.value.toString()); - } - - if (!env.lastRule) { - output.add(env.compress ? '' : ('\n' + tabRuleStr)); - } else { - env.lastRule = false; - } - } - - if (!this.root) { - output.add((env.compress ? '}' : '\n' + tabSetStr + '}')); - env.tabLevel--; - } - - sep = (env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr); - rulesetNodeCnt = rulesetNodes.length; - if (rulesetNodeCnt) { - if (ruleNodes.length && sep) { output.add(sep); } - rulesetNodes[0].genCSS(env, output); - for (i = 1; i < rulesetNodeCnt; i++) { - if (sep) { output.add(sep); } - rulesetNodes[i].genCSS(env, output); - } - } - - if (!output.isEmpty() && !env.compress && this.firstRoot) { - output.add('\n'); - } - }, - - toCSS: tree.toCSS, - - markReferenced: function () { - for (var s = 0; s < this.selectors.length; s++) { - this.selectors[s].markReferenced(); - } - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for (i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for (j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length === 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', el.index, el.currentFileInfo)); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for (k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = selector.createDerived([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for (i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length === 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for (i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); - -(function (tree) { - -tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) { - this.elements = elements; - this.extendList = extendList; - this.condition = condition; - this.currentFileInfo = currentFileInfo || {}; - this.isReferenced = isReferenced; - if (!condition) { - this.evaldCondition = true; - } -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - if (this.elements) { - this.elements = visitor.visitArray(this.elements); - } - if (this.extendList) { - this.extendList = visitor.visitArray(this.extendList); - } - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - createDerived: function(elements, extendList, evaldCondition) { - evaldCondition = (evaldCondition != null) ? evaldCondition : this.evaldCondition; - var newSelector = new(tree.Selector)(elements, extendList || this.extendList, null, this.index, this.currentFileInfo, this.isReferenced); - newSelector.evaldCondition = evaldCondition; - newSelector.mediaEmpty = this.mediaEmpty; - return newSelector; - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - olen, i; - - other.CacheElements(); - - olen = other._elements.length; - if (olen === 0 || len < olen) { - return 0; - } else { - for (i = 0; i < olen; i++) { - if (elements[i].value !== other._elements[i]) { - return 0; - } - } - } - - return olen; // return number of matched elements - }, - CacheElements: function(){ - var css = '', len, v, i; - - if( !this._elements ){ - - len = this.elements.length; - for(i = 0; i < len; i++){ - - v = this.elements[i]; - css += v.combinator.value; - - if( !v.value.value ){ - css += v.value; - continue; - } - - if( typeof v.value.value !== "string" ){ - css = ''; - break; - } - css += v.value.value; - } - - this._elements = css.match(/[,&#\.\w-]([\w-]|(\\.))*/g); - - if (this._elements) { - if (this._elements[0] === "&") { - this._elements.shift(); - } - - } else { - this._elements = []; - } - - } - }, - isJustParentSelector: function() { - return !this.mediaEmpty && - this.elements.length === 1 && - this.elements[0].value === '&' && - (this.elements[0].combinator.value === ' ' || this.elements[0].combinator.value === ''); - }, - eval: function (env) { - var evaldCondition = this.condition && this.condition.eval(env), - elements = this.elements, extendList = this.extendList; - - elements = elements && elements.map(function (e) { return e.eval(env); }); - extendList = extendList && extendList.map(function(extend) { return extend.eval(env); }); - - return this.createDerived(elements, extendList, evaldCondition); - }, - genCSS: function (env, output) { - var i, element; - if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") { - output.add(' ', this.currentFileInfo, this.index); - } - if (!this._css) { - //TODO caching? speed comparison? - for(i = 0; i < this.elements.length; i++) { - element = this.elements[i]; - element.genCSS(env, output); - } - } - }, - toCSS: tree.toCSS, - markReferenced: function () { - this.isReferenced = true; - }, - getIsReferenced: function() { - return !this.currentFileInfo.reference || this.isReferenced; - }, - getIsOutput: function() { - return this.evaldCondition; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - eval: function () { return this; } -}; - -})(require('../tree')); - -(function (tree) { - -tree.URL = function (val, currentFileInfo, isEvald) { - this.value = val; - this.currentFileInfo = currentFileInfo; - this.isEvald = isEvald; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add("url("); - this.value.genCSS(env, output); - output.add(")"); - }, - toCSS: tree.toCSS, - eval: function (ctx) { - var val = this.value.eval(ctx), - rootpath; - - if (!this.isEvald) { - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - val.value = ctx.normalizePath(val.value); - - // Add url args if enabled - if (ctx.urlArgs) { - if (!val.value.match(/^\s*data:/)) { - var delimiter = val.value.indexOf('?') === -1 ? '?' : '&'; - var urlArgs = delimiter + ctx.urlArgs; - if (val.value.indexOf('#') !== -1) { - val.value = val.value.replace('#', urlArgs + '#'); - } else { - val.value += urlArgs; - } - } - } - } - - return new(tree.URL)(val, this.currentFileInfo, true); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - genCSS: function (env, output) { - var i; - for(i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i+1 < this.value.length) { - output.add((env && env.compress) ? ',' : ', '); - } - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { - this.name = name; - this.index = index; - this.currentFileInfo = currentFileInfo || {}; -}; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, name = this.name; - - if (name.indexOf('@@') === 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - variable = tree.find(env.frames, function (frame) { - var v = frame.variable(name); - if (v) { - return v.value.eval(env); - } - }); - if (variable) { - this.evaluating = false; - return variable; - } else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); - -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // map - filename to contents of all the files - 'contentsIgnoredChars', // map - filename to lines at the begining of each file to ignore - 'relativeUrls', // option - whether to adjust URL's to be relative - 'rootpath', // option - rootpath to append to URL's - 'strictImports', // option - - 'insecure', // option - whether to allow imports from insecure ssl hosts - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true - 'mime', // browser only - mime type for sheet import - 'useFileCache', // browser only - whether to use the per file session cache - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' - absolute path to the entry file - // 'reference' - whether the file should not be output and only output parts that are referenced - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.contentsIgnoredChars) { this.contentsIgnoredChars = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits', // whether units need to evaluate correctly - 'cleancss', // whether to compress with clean-css - 'sourceMap', // whether to output a source map - 'importMultiple', // whether we are currently importing multiple copies - 'urlArgs' // whether to add args into url tokens - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - tree.evalEnv.prototype.normalizePath = function( path ) { - var - segments = path.split("/").reverse(), - segment; - - path = []; - while (segments.length !== 0 ) { - segment = segments.pop(); - switch( segment ) { - case ".": - break; - case "..": - if ((path.length === 0) || (path[path.length - 1] === "..")) { - path.push( segment ); - } else { - path.pop(); - } - break; - default: - path.push( segment ); - break; - } - } - - return path.join("/"); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - }; - -})(require('./tree')); - -(function (tree) { - - var _visitArgs = { visitDeeper: true }, - _hasIndexed = false; - - function _noop(node) { - return node; - } - - function indexNodeTypes(parent, ticker) { - // add .typeIndex to tree node types for lookup table - var key, child; - for (key in parent) { - if (parent.hasOwnProperty(key)) { - child = parent[key]; - switch (typeof child) { - case "function": - // ignore bound functions directly on tree which do not have a prototype - // or aren't nodes - if (child.prototype && child.prototype.type) { - child.prototype.typeIndex = ticker++; - } - break; - case "object": - ticker = indexNodeTypes(child, ticker); - break; - } - } - } - return ticker; - } - - tree.visitor = function(implementation) { - this._implementation = implementation; - this._visitFnCache = []; - - if (!_hasIndexed) { - indexNodeTypes(tree, 1); - _hasIndexed = true; - } - }; - - tree.visitor.prototype = { - visit: function(node) { - if (!node) { - return node; - } - - var nodeTypeIndex = node.typeIndex; - if (!nodeTypeIndex) { - return node; - } - - var visitFnCache = this._visitFnCache, - impl = this._implementation, - aryIndx = nodeTypeIndex << 1, - outAryIndex = aryIndx | 1, - func = visitFnCache[aryIndx], - funcOut = visitFnCache[outAryIndex], - visitArgs = _visitArgs, - fnName; - - visitArgs.visitDeeper = true; - - if (!func) { - fnName = "visit" + node.type; - func = impl[fnName] || _noop; - funcOut = impl[fnName + "Out"] || _noop; - visitFnCache[aryIndx] = func; - visitFnCache[outAryIndex] = funcOut; - } - - if (func !== _noop) { - var newNode = func.call(impl, node, visitArgs); - if (impl.isReplacing) { - node = newNode; - } - } - - if (visitArgs.visitDeeper && node && node.accept) { - node.accept(this); - } - - if (funcOut != _noop) { - funcOut.call(impl, node); - } - - return node; - }, - visitArray: function(nodes, nonReplacing) { - if (!nodes) { - return nodes; - } - - var cnt = nodes.length, i; - - // Non-replacing - if (nonReplacing || !this._implementation.isReplacing) { - for (i = 0; i < cnt; i++) { - this.visit(nodes[i]); - } - return nodes; - } - - // Replacing - var out = []; - for (i = 0; i < cnt; i++) { - var evald = this.visit(nodes[i]); - if (!evald.splice) { - out.push(evald); - } else if (evald.length) { - this.flatten(evald, out); - } - } - return out; - }, - flatten: function(arr, out) { - if (!out) { - out = []; - } - - var cnt, i, item, - nestedCnt, j, nestedItem; - - for (i = 0, cnt = arr.length; i < cnt; i++) { - item = arr[i]; - if (!item.splice) { - out.push(item); - continue; - } - - for (j = 0, nestedCnt = item.length; j < nestedCnt; j++) { - nestedItem = item[j]; - if (!nestedItem.splice) { - out.push(nestedItem); - } else if (nestedItem.length) { - this.flatten(nestedItem, out); - } - } - } - - return out; - } - }; - -})(require('./tree')); -(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode, - inlineCSS = importNode.options.inline; - - if (!importNode.css || inlineCSS) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - - if (importNode.options.multiple) { - env.importMultiple = true; - } - - this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, imported, fullPath) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - - if (imported && !env.importMultiple) { importNode.skip = imported; } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - importNode.importedFilename = fullPath; - if (!inlineCSS && !importNode.skip) { - new(tree.importVisitor)(importVisitor._importer, subFinish, env) - .run(root); - return; - } - } - - subFinish(); - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree')); -(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1], - paths = [], selectors; - - this.contexts.push(paths); - - if (! rulesetNode.root) { - selectors = rulesetNode.selectors; - if (selectors) { - selectors = selectors.filter(function(selector) { return selector.getIsOutput(); }); - rulesetNode.selectors = selectors.length ? selectors : (selectors = null); - if (selectors) { rulesetNode.joinSelectors(paths, context, selectors); } - } - if (!selectors) { rulesetNode.rules = null; } - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree')); -(function (tree) { - tree.toCSSVisitor = function(env) { - this._visitor = new tree.visitor(this); - this._env = env; - }; - - tree.toCSSVisitor.prototype = { - isReplacing: true, - run: function (root) { - return this._visitor.visit(root); - }, - - visitRule: function (ruleNode, visitArgs) { - if (ruleNode.variable) { - return []; - } - return ruleNode; - }, - - visitMixinDefinition: function (mixinNode, visitArgs) { - return []; - }, - - visitExtend: function (extendNode, visitArgs) { - return []; - }, - - visitComment: function (commentNode, visitArgs) { - if (commentNode.isSilent(this._env)) { - return []; - } - return commentNode; - }, - - visitMedia: function(mediaNode, visitArgs) { - mediaNode.accept(this._visitor); - visitArgs.visitDeeper = false; - - if (!mediaNode.rules.length) { - return []; - } - return mediaNode; - }, - - visitDirective: function(directiveNode, visitArgs) { - if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) { - return []; - } - if (directiveNode.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (this.charset) { - if (directiveNode.debugInfo) { - var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n"); - comment.debugInfo = directiveNode.debugInfo; - return this._visitor.visit(comment); - } - return []; - } - this.charset = true; - } - return directiveNode; - }, - - checkPropertiesInRoot: function(rules) { - var ruleNode; - for(var i = 0; i < rules.length; i++) { - ruleNode = rules[i]; - if (ruleNode instanceof tree.Rule && !ruleNode.variable) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null}; - } - } - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var rule, rulesets = []; - if (rulesetNode.firstRoot) { - this.checkPropertiesInRoot(rulesetNode.rules); - } - if (! rulesetNode.root) { - if (rulesetNode.paths) { - rulesetNode.paths = rulesetNode.paths - .filter(function(p) { - var i; - if (p[0].elements[0].combinator.value === ' ') { - p[0].elements[0].combinator = new(tree.Combinator)(''); - } - for(i = 0; i < p.length; i++) { - if (p[i].getIsReferenced() && p[i].getIsOutput()) { - return true; - } - } - return false; - }); - } - - // Compile rules and rulesets - var nodeRules = rulesetNode.rules, nodeRuleCnt = nodeRules ? nodeRules.length : 0; - for (var i = 0; i < nodeRuleCnt; ) { - rule = nodeRules[i]; - if (rule && rule.rules) { - // visit because we are moving them out from being a child - rulesets.push(this._visitor.visit(rule)); - nodeRules.splice(i, 1); - nodeRuleCnt--; - continue; - } - i++; - } - // accept the visitor to remove rules and refactor itself - // then we can decide now whether we want it or not - if (nodeRuleCnt > 0) { - rulesetNode.accept(this._visitor); - } else { - rulesetNode.rules = null; - } - visitArgs.visitDeeper = false; - - nodeRules = rulesetNode.rules; - if (nodeRules) { - this._mergeRules(nodeRules); - nodeRules = rulesetNode.rules; - } - if (nodeRules) { - this._removeDuplicateRules(nodeRules); - nodeRules = rulesetNode.rules; - } - - // now decide whether we keep the ruleset - if (nodeRules && nodeRules.length > 0 && rulesetNode.paths.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } else { - rulesetNode.accept(this._visitor); - visitArgs.visitDeeper = false; - if (rulesetNode.firstRoot || (rulesetNode.rules && rulesetNode.rules.length > 0)) { - rulesets.splice(0, 0, rulesetNode); - } - } - if (rulesets.length === 1) { - return rulesets[0]; - } - return rulesets; - }, - - _removeDuplicateRules: function(rules) { - if (!rules) { return; } - - // remove duplicates - var ruleCache = {}, - ruleList, rule, i; - - for(i = rules.length - 1; i >= 0 ; i--) { - rule = rules[i]; - if (rule instanceof tree.Rule) { - if (!ruleCache[rule.name]) { - ruleCache[rule.name] = rule; - } else { - ruleList = ruleCache[rule.name]; - if (ruleList instanceof tree.Rule) { - ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)]; - } - var ruleCSS = rule.toCSS(this._env); - if (ruleList.indexOf(ruleCSS) !== -1) { - rules.splice(i, 1); - } else { - ruleList.push(ruleCSS); - } - } - } - } - }, - - _mergeRules: function (rules) { - if (!rules) { return; } - - var groups = {}, - parts, - rule, - key; - - for (var i = 0; i < rules.length; i++) { - rule = rules[i]; - - if ((rule instanceof tree.Rule) && rule.merge) { - key = [rule.name, - rule.important ? "!" : ""].join(","); - - if (!groups[key]) { - groups[key] = []; - } else { - rules.splice(i--, 1); - } - - groups[key].push(rule); - } - } - - Object.keys(groups).map(function (k) { - parts = groups[k]; - - if (parts.length > 1) { - rule = parts[0]; - - rule.value = new (tree.Value)(parts.map(function (p) { - return p.value; - })); - } - }); - } - }; - -})(require('./tree')); -(function (tree) { - /*jshint loopfunc:true */ - - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - var rules = rulesetNode.rules, ruleCnt = rules ? rules.length : 0; - for(i = 0; i < ruleCnt; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rules[i]); - rulesetNode.extendOnEveryPath = true; - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - var paths = rulesetNode.paths; - for(i = 0; i < paths.length; i++) { - var selectorPath = paths[i], - selector = selectorPath[selectorPath.length - 1], - selExtendList = selector.extendList; - - extendList = selExtendList ? selExtendList.slice(0).concat(allSelectorsExtendList) - : allSelectorsExtendList; - - if (extendList) { - extendList = extendList.map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - } - - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if( extend.parent_ids.indexOf( targetExtend.object_id ) >= 0 ){ continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parent_ids = newExtend.parent_ids.concat(targetExtend.parent_ids, extend.parent_ids); - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (rulesetNode.extendOnEveryPath) { continue; } - var extendList = selectorPath[selectorPath.length-1].extendList; - if (extendList && extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator === '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - elementValue1 = elementValue1.value; - elementValue2 = elementValue2.value; - if (elementValue1 instanceof tree.Selector) { - if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) { - return false; - } - for(var i = 0; i currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - newElements = selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)); - - if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) { - path[path.length - 1].elements = - path[path.length - 1].elements.concat(newElements); - } else { - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - newElements - )); - } - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.sourceMapOutput = function (options) { - this._css = []; - this._rootNode = options.rootNode; - this._writeSourceMap = options.writeSourceMap; - this._contentsMap = options.contentsMap; - this._contentsIgnoredCharsMap = options.contentsIgnoredCharsMap; - this._sourceMapFilename = options.sourceMapFilename; - this._outputFilename = options.outputFilename; - this._sourceMapURL = options.sourceMapURL; - if (options.sourceMapBasepath) { - this._sourceMapBasepath = options.sourceMapBasepath.replace(/\\/g, '/'); - } - this._sourceMapRootpath = options.sourceMapRootpath; - this._outputSourceFiles = options.outputSourceFiles; - this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator; - - if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') { - this._sourceMapRootpath += '/'; - } - - this._lineNumber = 0; - this._column = 0; - }; - - tree.sourceMapOutput.prototype.normalizeFilename = function(filename) { - filename = filename.replace(/\\/g, '/'); - - if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) { - filename = filename.substring(this._sourceMapBasepath.length); - if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') { - filename = filename.substring(1); - } - } - return (this._sourceMapRootpath || "") + filename; - }; - - tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) { - - //ignore adding empty strings - if (!chunk) { - return; - } - - var lines, - sourceLines, - columns, - sourceColumns, - i; - - if (fileInfo) { - var inputSource = this._contentsMap[fileInfo.filename]; - - // remove vars/banner added to the top of the file - if (this._contentsIgnoredCharsMap[fileInfo.filename]) { - // adjust the index - index -= this._contentsIgnoredCharsMap[fileInfo.filename]; - if (index < 0) { index = 0; } - // adjust the source - inputSource = inputSource.slice(this._contentsIgnoredCharsMap[fileInfo.filename]); - } - inputSource = inputSource.substring(0, index); - sourceLines = inputSource.split("\n"); - sourceColumns = sourceLines[sourceLines.length-1]; - } - - lines = chunk.split("\n"); - columns = lines[lines.length-1]; - - if (fileInfo) { - if (!mapLines) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column}, - original: { line: sourceLines.length, column: sourceColumns.length}, - source: this.normalizeFilename(fileInfo.filename)}); - } else { - for(i = 0; i < lines.length; i++) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0}, - original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0}, - source: this.normalizeFilename(fileInfo.filename)}); - } - } - } - - if (lines.length === 1) { - this._column += columns.length; - } else { - this._lineNumber += lines.length - 1; - this._column = columns.length; - } - - this._css.push(chunk); - }; - - tree.sourceMapOutput.prototype.isEmpty = function() { - return this._css.length === 0; - }; - - tree.sourceMapOutput.prototype.toCSS = function(env) { - this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null }); - - if (this._outputSourceFiles) { - for(var filename in this._contentsMap) { - if (this._contentsMap.hasOwnProperty(filename)) - { - var source = this._contentsMap[filename]; - if (this._contentsIgnoredCharsMap[filename]) { - source = source.slice(this._contentsIgnoredCharsMap[filename]); - } - this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), source); - } - } - } - - this._rootNode.genCSS(env, this); - - if (this._css.length > 0) { - var sourceMapURL, - sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); - - if (this._sourceMapURL) { - sourceMapURL = this._sourceMapURL; - } else if (this._sourceMapFilename) { - sourceMapURL = this.normalizeFilename(this._sourceMapFilename); - } - - if (this._writeSourceMap) { - this._writeSourceMap(sourceMapContent); - } else { - sourceMapURL = "data:application/json," + encodeURIComponent(sourceMapContent); - } - - if (sourceMapURL) { - this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */"); - } - } - - return this._css.join(''); - }; - -})(require('./tree')); - -// -// browser.js - client-side engine -// -/*global less, window, document, XMLHttpRequest, location */ - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - (location.port && - location.port.length > 0) || - isFileProtocol ? 'development' - : 'production'); - -var logLevel = { - info: 2, - errors: 1, - none: 0 -}; - -// The amount of logging in the javascript console. -// 2 - Information and errors -// 1 - Errors -// 0 - None -// Defaults to 2 -less.logLevel = typeof(less.logLevel) != 'undefined' ? less.logLevel : logLevel.info; - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - if (less.functions.hasOwnProperty(func)) { - less.tree.functions[func] = less.functions[func]; - } - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -var typePattern = /^text\/(x-)?less$/; -var cache = null; -var fileCache = {}; - -function log(str, level) { - if (less.env == 'development' && typeof(console) !== 'undefined' && less.logLevel >= level) { - console.log('less: ' + str); - } -} - -function extractId(href) { - return href.replace(/^[a-z-]+:\/+?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function errorConsole(e, rootHref) { - var template = '{line} {content}'; - var filename = e.filename || rootHref; - var errors = []; - var content = (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - " in " + filename + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n' + - errors.join('\n'); - } else if (e.stack) { - content += e.stack; - } - log(content, logLevel.errors); -} - -function createCSS(styles, sheet, lastModified) { - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If this has already been inserted into the DOM, we may need to replace it - var oldCss = document.getElementById(id); - var keepOldCss = false; - - // Create a new stylesheet node for insertion or (if necessary) replacement - var css = document.createElement('style'); - css.setAttribute('type', 'text/css'); - if (sheet.media) { - css.setAttribute('media', sheet.media); - } - css.id = id; - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - css.appendChild(document.createTextNode(styles)); - - // If new contents match contents of oldCss, don't replace oldCss - keepOldCss = (oldCss !== null && oldCss.childNodes.length > 0 && css.childNodes.length > 0 && - oldCss.firstChild.nodeValue === css.firstChild.nodeValue); - } - - var head = document.getElementsByTagName('head')[0]; - - // If there is no oldCss, just append; otherwise, only append if we need - // to replace oldCss with an updated stylesheet - if (oldCss === null || keepOldCss === false) { - var nextEl = sheet && sheet.nextSibling || null; - if (nextEl) { - nextEl.parentNode.insertBefore(css, nextEl); - } else { - head.appendChild(css); - } - } - if (oldCss && keepOldCss === false) { - oldCss.parentNode.removeChild(oldCss); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.', logLevel.info); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save', logLevel.errors); - } - } -} - -function errorHTML(e, rootHref) { - var id = 'less-error-message:' + extractId(rootHref || ""); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, errors = []; - var filename = e.filename || rootHref; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - '

    ' + '

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- - if (less.env == 'development') { - timer = setInterval(function () { - if (document.body) { - if (document.getElementById(id)) { - document.body.replaceChild(elem, document.getElementById(id)); - } else { - document.body.insertBefore(elem, document.body.firstChild); - } - clearInterval(timer); - } - }, 10); - } -} - -function error(e, rootHref) { - if (!less.errorReporting || less.errorReporting === "html") { - errorHTML(e, rootHref); - } else if (less.errorReporting === "console") { - errorConsole(e, rootHref); - } else if (typeof less.errorReporting === 'function') { - less.errorReporting("add", e, rootHref); - } -} - -function removeErrorHTML(path) { - var node = document.getElementById('less-error-message:' + extractId(path)); - if (node) { - node.parentNode.removeChild(node); - } -} - -function removeErrorConsole(path) { - //no action -} - -function removeError(path) { - if (!less.errorReporting || less.errorReporting === "html") { - removeErrorHTML(path); - } else if (less.errorReporting === "console") { - removeErrorConsole(path); 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This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // current chunk - currentPos, // index of current chunk, in `input` - parser, - parsers, - rootFilename = env && env.filename; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed around by reference. - if (!(env instanceof tree.parseEnv)) { - env = new tree.parseEnv(env); - } - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - contentsIgnoredChars: env.contentsIgnoredChars, // lines inserted, not in the original less - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, currentFileInfo, importOptions, callback) { - var parserImports = this; - this.queue.push(path); - - var fileParsedFunc = function (e, root, fullPath) { - parserImports.queue.splice(parserImports.queue.indexOf(path), 1); // Remove the path from the queue - - var importedPreviously = fullPath in parserImports.files || fullPath === rootFilename; - - parserImports.files[fullPath] = root; // Store the root - - if (e && !parserImports.error) { parserImports.error = e; } - - callback(e, root, importedPreviously, fullPath); - }; - - if (less.Parser.importer) { - less.Parser.importer(path, currentFileInfo, fileParsedFunc, env); - } else { - less.Parser.fileLoader(path, currentFileInfo, function(e, contents, fullPath, newFileInfo) { - if (e) {fileParsedFunc(e); return;} - - var newEnv = new tree.parseEnv(env); - - newEnv.currentFileInfo = newFileInfo; - newEnv.processImports = false; - newEnv.contents[fullPath] = contents; - - if (currentFileInfo.reference || importOptions.reference) { - newFileInfo.reference = true; - } - - if (importOptions.inline) { - fileParsedFunc(null, contents, fullPath); - } else { - new(less.Parser)(newEnv).parse(contents, function (e, root) { - fileParsedFunc(e, root, fullPath); - }); - } - }, env); - } - } - }; - - function save() { temp = current; memo = currentPos = i; } - function restore() { current = temp; currentPos = i = memo; } - - function sync() { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - } - function isWhitespace(str, pos) { - var code = str.charCodeAt(pos | 0); - return (code <= 32) && (code === 32 || code === 10 || code === 9); - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var tokType = typeof tok, - match, length; - - // Either match a single character in the input, - // or match a regexp in the current chunk (`current`). - // - if (tokType === "string") { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - // regexp - sync (); - if (! (match = tok.exec(current))) { - return null; - } - - length = match[0].length; - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - - // Specialization of $(tok) - function $re(tok) { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - var m = tok.exec(current); - if (!m) { - return null; - } - - skipWhitespace(m[0].length); - if(typeof m === "string") { - return m; - } - - return m.length === 1 ? m[0] : m; - } - - var _$re = $re; - - // Specialization of $(tok) - function $char(tok) { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - curr = i - currentPos, - endIndex = i + current.length - curr, - mem = (i += length), - inp = input, - c; - - for (; i < endIndex; i++) { - c = inp.charCodeAt(i); - if (c > 32) { - break; - } - - if ((c !== 32) && (c !== 10) && (c !== 9) && (c !== 13)) { - break; - } - } - - current = current.slice(length + i - mem + curr); - currentPos = i; - - if (!current.length && (j < chunks.length - 1)) { - current = chunks[++j]; - skipWhitespace(0); // skip space at the beginning of a chunk - return true; // things changed - } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - // some older browsers return typeof 'function' for RegExp - var result = (Object.prototype.toString.call(arg) === '[object Function]') ? arg.call(parsers) : $(arg); - if (result) { - return result; - } - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } - - // Specialization of expect() - function expectChar(arg, msg) { - if (input.charAt(i) === arg) { - skipWhitespace(1); - return arg; - } - error(msg || "expected '" + arg + "' got '" + input.charAt(i) + "'"); - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - return tok.test(current); - } - } - - // Specialization of peek() - function peekChar(tok) { - return input.charAt(i) === tok; - } - - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, inputStream) { - var n = index + 1, - line = null, - column = -1; - - while (--n >= 0 && inputStream.charAt(n) !== '\n') { - column++; - } - - if (typeof index === 'number') { - line = (inputStream.slice(0, index).match(/\n/g) || "").length; - } - - return { - line: line, - column: column - }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - callLine = e.call && getLocation(e.call, input).line, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = callLine + 1; - this.callExtract = lines[callLine]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // @param str A string containing 'less' markup - // @param callback call `callback` when done. - // @param [additionalData] An optional map which can contains vars - a map (key, value) of variables to apply - // - parse: function (str, callback, additionalData) { - var root, line, lines, error = null, globalVars, modifyVars, preText = ""; - - i = j = currentPos = furthest = 0; - - globalVars = (additionalData && additionalData.globalVars) ? less.Parser.serializeVars(additionalData.globalVars) + '\n' : ''; - modifyVars = (additionalData && additionalData.modifyVars) ? '\n' + less.Parser.serializeVars(additionalData.modifyVars) : ''; - - if (globalVars || (additionalData && additionalData.banner)) { - preText = ((additionalData && additionalData.banner) ? additionalData.banner : "") + globalVars; - parser.imports.contentsIgnoredChars[env.currentFileInfo.filename] = preText.length; - } - - str = str.replace(/\r\n/g, '\n'); - // Remove potential UTF Byte Order Mark - input = str = preText + str.replace(/^\uFEFF/, '') + modifyVars; - parser.imports.contents[env.currentFileInfo.filename] = str; - - // Split the input into chunks. - chunks = (function (input) { - var len = input.length, level = 0, parenLevel = 0, - lastOpening, lastOpeningParen, lastMultiComment, lastMultiCommentEndBrace, - chunks = [], emitFrom = 0, - parserCurrentIndex, currentChunkStartIndex, cc, cc2, matched; - - function fail(msg, index) { - error = new(LessError)({ - index: index || parserCurrentIndex, - type: 'Parse', - message: msg, - filename: env.currentFileInfo.filename - }, env); - } - - function emitChunk(force) { - var len = parserCurrentIndex - emitFrom; - if (((len < 512) && !force) || !len) { - return; - } - chunks.push(input.slice(emitFrom, parserCurrentIndex + 1)); - emitFrom = parserCurrentIndex + 1; - } - - for (parserCurrentIndex = 0; parserCurrentIndex < len; parserCurrentIndex++) { - cc = input.charCodeAt(parserCurrentIndex); - if (((cc >= 97) && (cc <= 122)) || (cc < 34)) { - // a-z or whitespace - continue; - } - - switch (cc) { - case 40: // ( - parenLevel++; - lastOpeningParen = parserCurrentIndex; - continue; - case 41: // ) - if (--parenLevel < 0) { - return fail("missing opening `(`"); - } - continue; - case 59: // ; - if (!parenLevel) { emitChunk(); } - continue; - case 123: // { - level++; - lastOpening = parserCurrentIndex; - continue; - case 125: // } - if (--level < 0) { - return fail("missing opening `{`"); - } - if (!level) { emitChunk(); } - continue; - case 92: // \ - if (parserCurrentIndex < len - 1) { parserCurrentIndex++; continue; } - return fail("unescaped `\\`"); - case 34: - case 39: - case 96: // ", ' and ` - matched = 0; - currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 1; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 > 96) { continue; } - if (cc2 == cc) { matched = 1; break; } - if (cc2 == 92) { // \ - if (parserCurrentIndex == len - 1) { - return fail("unescaped `\\`"); - } - parserCurrentIndex++; - } - } - if (matched) { continue; } - return fail("unmatched `" + String.fromCharCode(cc) + "`", currentChunkStartIndex); - case 47: // /, check for comment - if (parenLevel || (parserCurrentIndex == len - 1)) { continue; } - cc2 = input.charCodeAt(parserCurrentIndex + 1); - if (cc2 == 47) { - // //, find lnfeed - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if ((cc2 <= 13) && ((cc2 == 10) || (cc2 == 13))) { break; } - } - } else if (cc2 == 42) { - // /*, find */ - lastMultiComment = currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len - 1; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 == 125) { lastMultiCommentEndBrace = parserCurrentIndex; } - if (cc2 != 42) { continue; } - if (input.charCodeAt(parserCurrentIndex + 1) == 47) { break; } - } - if (parserCurrentIndex == len - 1) { - return fail("missing closing `*/`", currentChunkStartIndex); - } - parserCurrentIndex++; - } - continue; - case 42: // *, check for unmatched */ - if ((parserCurrentIndex < len - 1) && (input.charCodeAt(parserCurrentIndex + 1) == 47)) { - return fail("unmatched `/*`"); - } - continue; - } - } - - if (level !== 0) { - if ((lastMultiComment > lastOpening) && (lastMultiCommentEndBrace > lastMultiComment)) { - return fail("missing closing `}` or `*/`", lastOpening); - } else { - return fail("missing closing `}`", lastOpening); - } - } else if (parenLevel !== 0) { - return fail("missing closing `)`", lastOpeningParen); - } - - emitChunk(true); - return chunks; - })(str); - - if (error) { - return callback(new(LessError)(error, env)); - } - - current = chunks[0]; - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)(null, this.parsers.primary()); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - return function (options, variables) { - options = options || {}; - var evaldRoot, - css, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, null, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var preEvalVisitors = [], - visitors = [ - new(tree.joinSelectorVisitor)(), - new(tree.processExtendsVisitor)(), - new(tree.toCSSVisitor)({compress: Boolean(options.compress)}) - ], i, root = this; - - if (options.plugins) { - for(i =0; i < options.plugins.length; i++) { - if (options.plugins[i].isPreEvalVisitor) { - preEvalVisitors.push(options.plugins[i]); - } else { - if (options.plugins[i].isPreVisitor) { - visitors.splice(0, 0, options.plugins[i]); - } else { - visitors.push(options.plugins[i]); - } - } - } - } - - for(i = 0; i < preEvalVisitors.length; i++) { - preEvalVisitors[i].run(root); - } - - evaldRoot = evaluate.call(root, evalEnv); - - for(i = 0; i < visitors.length; i++) { - visitors[i].run(evaldRoot); - } - - if (options.sourceMap) { - evaldRoot = new tree.sourceMapOutput( - { - contentsIgnoredCharsMap: parser.imports.contentsIgnoredChars, - writeSourceMap: options.writeSourceMap, - rootNode: evaldRoot, - contentsMap: parser.imports.contents, - sourceMapFilename: options.sourceMapFilename, - sourceMapURL: options.sourceMapURL, - outputFilename: options.sourceMapOutputFilename, - sourceMapBasepath: options.sourceMapBasepath, - sourceMapRootpath: options.sourceMapRootpath, - outputSourceFiles: options.outputSourceFiles, - sourceMapGenerator: options.sourceMapGenerator - }); - } - - css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits), - numPrecision: 8}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.cleancss && less.mode === 'node') { - var CleanCSS = require('clean-css'), - cleancssOptions = options.cleancssOptions || {}; - - if (cleancssOptions.keepSpecialComments === undefined) { - cleancssOptions.keepSpecialComments = "*"; - } - cleancssOptions.processImport = false; - cleancssOptions.noRebase = true; - if (cleancssOptions.noAdvanced === undefined) { - cleancssOptions.noAdvanced = true; - } - - return new CleanCSS(cleancssOptions).minify(css); - } else if (options.compress) { - return css.replace(/(^(\s)+)|((\s)+$)/g, ""); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - var loc = getLocation(i, input); - lines = input.split('\n'); - line = loc.line + 1; - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: loc.column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - return callback(e); - } - else { - return callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - return finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: parsers = { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var mixin = this.mixin, $re = _$re, root = [], node; - - while (current) - { - node = this.extendRule() || mixin.definition() || this.rule() || this.ruleset() || - mixin.call() || this.comment() || this.directive(); - if (node) { - root.push(node); - } else { - if (!($re(/^[\s\n]+/) || $re(/^;+/))) { - break; - } - } - } - - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') { return; } - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($re(/^\/\/.*/), true, i, env.currentFileInfo); - } - comment = $re(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/); - if (comment) { - return new(tree.Comment)(comment, false, i, env.currentFileInfo); - } - }, - - comments: function () { - var comment, comments = []; - - while(true) { - comment = this.comment(); - if (!comment) { - break; - } - comments.push(comment); - } - - return comments; - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; } - - if (e) { $char('~'); } - - str = $re(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/); - if (str) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - k = $re(/^[_A-Za-z-][_A-Za-z0-9-]*/); - if (k) { - var color = tree.Color.fromKeyword(k); - if (color) { - return color; - } - return new(tree.Keyword)(k); - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(current); - if (!name) { return; } - - name = name[1]; - nameLC = name.toLowerCase(); - if (nameLC === 'url') { - return null; - } - - i += name.length; - - if (nameLC === 'alpha') { - alpha_ret = parsers.alpha(); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $char('('); // Parse the '(' and consume whitespace. - - args = this.arguments(); - - if (! $char(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (true) { - arg = this.assignment() || parsers.expression(); - if (!arg) { - break; - } - args.push(arg); - if (! $char(',')) { - break; - } - } - return args; - }, - literal: function () { - return this.dimension() || - this.color() || - this.quoted() || - this.unicodeDescriptor(); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - key = $re(/^\w+(?=\s?=)/i); - if (!key) { - return; - } - if (!$char('=')) { - return; - } - value = parsers.entity(); - if (value) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$re(/^url\(/)) { - return; - } - - value = this.quoted() || this.variable() || - $re(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expectChar(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $re(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var curly, index = i; - - if (input.charAt(i) === '@' && (curly = $re(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $re(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) { - return; - } - - value = $re(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/); - if (value) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - ud = $re(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/); - if (ud) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '`') { return; } - if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) { - error("You are using JavaScript, which has been disabled."); - } - - if (e) { $char('~'); } - - str = $re(/^`([^`]*)`/); - if (str) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*:/))) { return name[1]; } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList, extend; - - if (!(isRule ? $re(/^&:extend\(/) : $re(/^:extend\(/))) { return; } - - do { - option = null; - elements = null; - while (! (option = $re(/^(all)(?=\s*(\)|,))/))) { - e = this.element(); - if (!e) { break; } - if (elements) { elements.push(e); } else { elements = [ e ]; } - } - - option = option && option[1]; - - extend = new(tree.Extend)(new(tree.Selector)(elements), option, index); - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - - } while($char(",")); - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var s = input.charAt(i), important = false, index = i, elemIndex, - elements, elem, e, c, args; - - if (s !== '.' && s !== '#') { return; } - - save(); // stop us absorbing part of an invalid selector - - while (true) { - elemIndex = i; - e = $re(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/); - if (!e) { - break; - } - elem = new(tree.Element)(c, e, elemIndex, env.currentFileInfo); - if (elements) { elements.push(elem); } else { elements = [ elem ]; } - c = $char('>'); - } - - if (elements) { - if ($char('(')) { - args = this.args(true).args; - expectChar(')'); - } - - if (parsers.important()) { - important = true; - } - - if (parsers.end()) { - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - } - - restore(); - }, - args: function (isCall) { - var parsers = parser.parsers, entities = parsers.entities, - returner = { args:null, variadic: false }, - expressions = [], argsSemiColon = [], argsComma = [], - isSemiColonSeperated, expressionContainsNamed, name, nameLoop, value, arg; - - while (true) { - if (isCall) { - arg = parsers.expression(); - } else { - parsers.comments(); - if (input.charAt(i) === '.' && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = entities.variable() || entities.literal() || entities.keyword(); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value.length == 1) { - val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($char(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(parsers.expression); - nameLoop = (name = val.name); - } else if (!isCall && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($char(',')) { - continue; - } - - if ($char(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) { - return; - } - - save(); - - match = $re(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/); - if (match) { - name = match[1]; - - var argInfo = this.args(false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$char(')')) { - furthest = i; - restore(); - } - - parsers.comments(); - - if ($re(/^when/)) { // Guard - cond = expect(parsers.conditions, 'expected condition'); - } - - ruleset = parsers.block(); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - var entities = this.entities; - - return entities.literal() || entities.variable() || entities.url() || - entities.call() || entities.keyword() || entities.javascript() || - this.comment(); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $char(';') || peekChar('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $re(/^\(opacity=/i)) { return; } - value = $re(/^\d+/) || this.entities.variable(); - if (value) { - expectChar(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, c, v, index = i; - - c = this.combinator(); - - e = $re(/^(?:\d+\.\d+|\d+)%/) || $re(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $char('*') || $char('&') || this.attribute() || $re(/^\([^()@]+\)/) || $re(/^[\.#](?=@)/) || - this.entities.variableCurly(); - - if (! e) { - if ($char('(')) { - if ((v = this.selector()) && $char(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, index, env.currentFileInfo); } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|' || c === '^') { - i++; - if (input.charAt(i) === '^') { - c = '^^'; - i++; - } - while (isWhitespace(input, i)) { i++; } - return new(tree.Combinator)(c); - } else if (isWhitespace(input, i - 1)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - // - // A CSS selector (see selector below) - // with less extensions e.g. the ability to extend and guard - // - lessSelector: function () { - return this.selector(true); - }, - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function (isLess) { - var index = i, $re = _$re, elements, extendList, c, e, extend, when, condition; - - while ((isLess && (extend = this.extend())) || (isLess && (when = $re(/^when/))) || (e = this.element())) { - if (when) { - condition = expect(this.conditions, 'expected condition'); - } else if (condition) { - error("CSS guard can only be used at the end of selector"); - } else if (extend) { - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - } else { - if (extendList) { error("Extend can only be used at the end of selector"); } - c = input.charAt(i); - if (elements) { elements.push(e); } else { elements = [ e ]; } - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { - break; - } - } - - if (elements) { return new(tree.Selector)(elements, extendList, condition, index, env.currentFileInfo); } - if (extendList) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - if (! $char('[')) { return; } - - var entities = this.entities, - key, val, op; - - if (!(key = entities.variableCurly())) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - op = $re(/^[|~*$^]?=/); - if (op) { - val = entities.quoted() || $re(/^[0-9]+%/) || $re(/^[\w-]+/) || entities.variableCurly(); - } - - expectChar(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($char('{') && (content = this.primary()) && $char('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors, s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - while (true) { - s = this.lessSelector(); - if (!s) { - break; - } - if (selectors) { selectors.push(s); } else { selectors = [ s ]; } - this.comments(); - if (s.condition && selectors.length > 1) { - error("Guards are only currently allowed on a single selector."); - } - if (! $char(',')) { break; } - if (s.condition) { - error("Guards are only currently allowed on a single selector."); - } - this.comments(); - } - - if (selectors && (rules = this.block())) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) { - ruleset.debugInfo = debugInfo; - } - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, c = input.charAt(i), important, merge = false; - save(); - - if (c === '.' || c === '#' || c === '&') { return; } - - name = this.variable() || this.ruleProperty(); - if (name) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || (name.charAt && (name.charAt(0) === '@'))) ? - (this.value() || this.anonymousValue()) : - (this.anonymousValue() || this.value()); - - important = this.important(); - - // a name returned by this.ruleProperty() is always an array of the form: - // [string-1, ..., string-n, ""] or [string-1, ..., string-n, "+"] - // where each item is a tree.Keyword or tree.Variable - merge = name.pop && (name.pop().value === "+"); - - if (value && this.end()) { - return new (tree.Rule)(name, value, important, merge, memo, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } - }, - anonymousValue: function () { - var match; - match = /^([^@+\/'"*`(;{}-]*);/.exec(current); - if (match) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $re(/^@import?\s+/); - - var options = (dir ? this.importOptions() : null) || {}; - - if (dir && (path = this.entities.quoted() || this.entities.url())) { - features = this.mediaFeatures(); - if ($char(';')) { - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $char('(')) { return null; } - do { - o = this.importOption(); - if (o) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $char(',')) { break; } - } - } while (o); - expectChar(')'); - return options; - }, - - importOption: function() { - var opt = $re(/^(less|css|multiple|once|inline|reference)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var entities = this.entities, nodes = [], e, p; - do { - e = entities.keyword() || entities.variable(); - if (e) { - nodes.push(e); - } else if ($char('(')) { - p = this.property(); - e = this.value(); - if ($char(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null; } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var entities = this.entities, features = [], e; - do { - e = this.mediaFeature(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } else { - e = entities.variable(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - if ($re(/^@media/)) { - features = this.mediaFeatures(); - - rules = this.block(); - if (rules) { - media = new(tree.Media)(rules, features, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - media.debugInfo = debugInfo; - } - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var index = i, name, value, rules, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression, identifier; - - if (input.charAt(i) !== '@') { return; } - - value = this['import']() || this.media(); - if (value) { - return value; - } - - save(); - - name = $re(/^@[a-z-]+/); - - if (!name) { return; } - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@host": - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - identifier = ($re(/^[^{]+/) || '').trim(); - if (identifier) { - name += " " + identifier; - } - } - - if (hasBlock) { - rules = this.block(); - if (rules) { - return new(tree.Directive)(name, rules, index, env.currentFileInfo); - } - } else { - value = hasExpression ? this.expression() : this.entity(); - if (value && $char(';')) { - var directive = new(tree.Directive)(name, value, index, env.currentFileInfo); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = []; - - do { - e = this.expression(); - if (e) { - expressions.push(e); - if (! $char(',')) { break; } - } - } while(e); - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $re(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($char('(')) { - a = this.addition(); - if (a) { - e = new(tree.Expression)([a]); - expectChar(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced; - m = this.operand(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - if (peek(/^\/[*\/]/)) { - break; - } - op = $char('/') || $char('*'); - - if (!op) { break; } - - a = this.operand(); - - if (!a) { break; } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - m = this.multiplication(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - op = $re(/^[-+]\s+/) || (!isSpaced && ($char('+') || $char('-'))); - if (!op) { - break; - } - a = this.multiplication(); - if (!a) { - break; - } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - a = this.condition(); - if (a) { - while (true) { - if (!peek(/^,\s*(not\s*)?\(/) || !$char(',')) { - break; - } - b = this.condition(); - if (!b) { - break; - } - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var entities = this.entities, index = i, negate = false, - a, b, c, op; - - if ($re(/^not/)) { negate = true; } - expectChar('('); - a = this.addition() || entities.keyword() || entities.quoted(); - if (a) { - op = $re(/^(?:>=|<=|=<|[<=>])/); - if (op) { - b = this.addition() || entities.keyword() || entities.quoted(); - if (b) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expectChar(')'); - return $re(/^and/) ? new(tree.Condition)('and', c, this.condition()) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var entities = this.entities, - p = input.charAt(i + 1), negate; - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $char('-'); } - var o = this.sub() || entities.dimension() || - entities.color() || entities.variable() || - entities.call(); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var entities = [], e, delim; - - do { - e = this.addition() || this.entity(); - if (e) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/)) { - delim = $char('/'); - if (delim) { - entities.push(new(tree.Anonymous)(delim)); - } - } - } - } while (e); - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name = $re(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/); - if (name) { - return name[1]; - } - }, - ruleProperty: function () { - var c = current, name = [], index = [], length = 0, s, k; - - function match(re) { - var a = re.exec(c); - if (a) { - index.push(i + length); - length += a[0].length; - c = c.slice(a[1].length); - return name.push(a[1]); - } - } - - match(/^(\*?)/); - while (match(/^((?:[\w-]+)|(?:@\{[\w-]+\}))/)); // ! - if ((name.length > 1) && match(/^\s*(\+?)\s*:/)) { - // at last, we have the complete match now. move forward, - // convert name particles to tree objects and return: - skipWhitespace(length); - if (name[0] === '') { - name.shift(); - index.shift(); - } - for (k = 0; k < name.length; k++) { - s = name[k]; - name[k] = (s.charAt(0) !== '@') - ? new(tree.Keyword)(s) - : new(tree.Variable)('@' + s.slice(2, -1), - index[k], env.currentFileInfo); - } - return name; - } - } - } - }; - return parser; -}; -less.Parser.serializeVars = function(vars) { - var s = ''; - - for (var name in vars) { - if (Object.hasOwnProperty.call(vars, name)) { - var value = vars[name]; - s += ((name[0] === '@') ? '' : '@') + name +': '+ value + - ((('' + value).slice(-1) === ';') ? '' : ';'); - } - } - - return s; -}; - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 255); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; } - else if (h * 2 < 1) { return m2; } - else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; } - else { return m1; } - } - - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - // filter: saturate(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if (color.luma() < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - /*jshint loopfunc:true */ - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - if(!(val instanceof tree.Dimension)) { - throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") }; - } - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return _math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _minmax: function (isMin, args) { - args = Array.prototype.slice.call(args); - switch(args.length) { - case 0: throw { type: "Argument", message: "one or more arguments required" }; - case 1: return args[0]; - } - var i, j, current, currentUnified, referenceUnified, unit, - order = [], // elems only contains original argument values. - values = {}; // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - for (i = 0; i < args.length; i++) { - current = args[i]; - if (!(current instanceof tree.Dimension)) { - order.push(current); - continue; - } - currentUnified = current.unify(); - unit = currentUnified.unit.toString(); - j = values[unit]; - if (j === undefined) { - values[unit] = order.length; - order.push(current); - continue; - } - referenceUnified = order[j].unify(); - if ( isMin && currentUnified.value < referenceUnified.value || - !isMin && currentUnified.value > referenceUnified.value) { - order[j] = current; - } - } - if (order.length == 1) { - return order[0]; - } - args = order.map(function (a) { return a.toCSS(this.env); }) - .join(this.env.compress ? "," : ", "); - return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")"); - }, - min: function () { - return this._minmax(true, arguments); - }, - max: function () { - return this._minmax(false, arguments); - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - var colorCandidate = n.value, - returnColor; - returnColor = tree.Color.fromKeyword(colorCandidate); - if (returnColor) { - return returnColor; - } - if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) { - return new(tree.Color)(colorCandidate.slice(1)); - } - throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" }; - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - return Array.isArray(values.value) - ? values.value[index] : Array(values)[index]; - }, - length: function(values) { - var n = Array.isArray(values.value) ? values.value.length : 1; - return new tree.Dimension(n); - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require('fs'), - path = require('path'), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) { mimetype += ';base64'; } - } - else { - useBase64 = /;base64$/.test(mimetype); - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "\"data:" + mimetype + ',' + buf + "\""; - return new(tree.URL)(new(tree.Anonymous)(uri)); - }, - - "svg-gradient": function(direction) { - - function throwArgumentDescriptor() { - throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" }; - } - - if (arguments.length < 3) { - throwArgumentDescriptor(); - } - var stops = Array.prototype.slice.call(arguments, 1), - gradientDirectionSvg, - gradientType = "linear", - rectangleDimension = 'x="0" y="0" width="1" height="1"', - useBase64 = true, - renderEnv = {compress: false}, - returner, - directionValue = direction.toCSS(renderEnv), - i, color, position, positionValue, alpha; - - switch (directionValue) { - case "to bottom": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - gradientType = "radial"; - gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" }; - } - returner = '' + - '' + - '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>'; - - for (i = 0; i < stops.length; i+= 1) { - if (stops[i].value) { - color = stops[i].value[0]; - position = stops[i].value[1]; - } else { - color = stops[i]; - position = undefined; - } - - if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) { - throwArgumentDescriptor(); - } - positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%"; - alpha = color.alpha; - returner += ''; - } - returner += '' + - ''; - - if (useBase64) { - try { - returner = require('./encoder').encodeBase64(returner); // TODO browser implementation - } catch(e) { - useBase64 = false; - } - } - - returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'"; - return new(tree.URL)(new(tree.Anonymous)(returner)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -// Math - -var mathFunctions = { - // name, unit - ceil: null, - floor: null, - sqrt: null, - abs: null, - tan: "", - sin: "", - cos: "", - atan: "rad", - asin: "rad", - acos: "rad" -}; - -function _math(fn, unit, n) { - if (!(n instanceof tree.Dimension)) { - throw { type: "Argument", message: "argument must be a number" }; - } - if (unit == null) { - unit = n.unit; - } else { - n = n.unify(); - } - return new(tree.Dimension)(fn(parseFloat(n.value)), unit); -} - -// ~ End of Math - -// Color Blending -// ref: http://www.w3.org/TR/compositing-1 - -function colorBlend(mode, color1, color2) { - var ab = color1.alpha, cb, // backdrop - as = color2.alpha, cs, // source - ar, cr, r = []; // result - - ar = as + ab * (1 - as); - for (var i = 0; i < 3; i++) { - cb = color1.rgb[i] / 255; - cs = color2.rgb[i] / 255; - cr = mode(cb, cs); - if (ar) { - cr = (as * cs + ab * (cb - - as * (cb + cs - cr))) / ar; - } - r[i] = cr * 255; - } - - return new(tree.Color)(r, ar); -} - -var colorBlendMode = { - multiply: function(cb, cs) { - return cb * cs; - }, - screen: function(cb, cs) { - return cb + cs - cb * cs; - }, - overlay: function(cb, cs) { - cb *= 2; - return (cb <= 1) - ? colorBlendMode.multiply(cb, cs) - : colorBlendMode.screen(cb - 1, cs); - }, - softlight: function(cb, cs) { - var d = 1, e = cb; - if (cs > 0.5) { - e = 1; - d = (cb > 0.25) ? Math.sqrt(cb) - : ((16 * cb - 12) * cb + 4) * cb; - } - return cb - (1 - 2 * cs) * e * (d - cb); - }, - hardlight: function(cb, cs) { - return colorBlendMode.overlay(cs, cb); - }, - difference: function(cb, cs) { - return Math.abs(cb - cs); - }, - exclusion: function(cb, cs) { - return cb + cs - 2 * cb * cs; - }, - - // non-w3c functions: - average: function(cb, cs) { - return (cb + cs) / 2; - }, - negation: function(cb, cs) { - return 1 - Math.abs(cb + cs - 1); - } -}; - -// ~ End of Color Blending - -tree.defaultFunc = { - eval: function () { - var v = this.value_, e = this.error_; - if (e) { - throw e; - } - if (v != null) { - return v ? tree.True : tree.False; - } - }, - value: function (v) { - this.value_ = v; - }, - error: function (e) { - this.error_ = e; - }, - reset: function () { - this.value_ = this.error_ = null; - } -}; - -function initFunctions() { - var f, tf = tree.functions; - - // math - for (f in mathFunctions) { - if (mathFunctions.hasOwnProperty(f)) { - tf[f] = _math.bind(null, Math[f], mathFunctions[f]); - } - } - - // color blending - for (f in colorBlendMode) { - if (colorBlendMode.hasOwnProperty(f)) { - tf[f] = colorBlend.bind(null, colorBlendMode[f]); - } - } - - // default - f = tree.defaultFunc; - tf["default"] = f.eval.bind(f); - -} initFunctions(); - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.fround = function(env, value) { - var p; - if (env && (env.numPrecision != null)) { - p = Math.pow(10, env.numPrecision); - return Math.round(value * p) / p; - } else { - return value; - } -}; - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); - -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); - -(function (tree) { - -tree.debugInfo = function(env, ctx, lineSeperator) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:\/\\])/g, function (a) { - if (a == '\\') { - a = '\/'; - } - return '\\' + a; - }) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - r = fun.call(obj, obj[i]); - if (r) { return r; } - } - return null; -}; - -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false); }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -tree.toCSS = function (env) { - var strs = []; - this.genCSS(env, { - add: function(chunk, fileInfo, index) { - strs.push(chunk); - }, - isEmpty: function () { - return strs.length === 0; - } - }); - return strs.join(''); -}; - -tree.outputRuleset = function (env, output, rules) { - var ruleCnt = rules.length, i; - env.tabLevel = (env.tabLevel | 0) + 1; - - // Compressed - if (env.compress) { - output.add('{'); - for (i = 0; i < ruleCnt; i++) { - rules[i].genCSS(env, output); - } - output.add('}'); - env.tabLevel--; - return; - } - - // Non-compressed - var tabSetStr = '\n' + Array(env.tabLevel).join(" "), tabRuleStr = tabSetStr + " "; - if (!ruleCnt) { - output.add(" {" + tabSetStr + '}'); - } else { - output.add(" {" + tabRuleStr); - rules[0].genCSS(env, output); - for (i = 1; i < ruleCnt; i++) { - output.add(tabRuleStr); - rules[i].genCSS(env, output); - } - output.add(tabSetStr + '}'); - } - - env.tabLevel--; -}; - -})(require('./tree')); - -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } - return this; - }, - genCSS: function (env, output) { - output.add("alpha(opacity="); - - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - - output.add(")"); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Anonymous = function (string, index, currentFileInfo, mapLines) { - this.value = string.value || string; - this.index = index; - this.mapLines = mapLines; - this.currentFileInfo = currentFileInfo; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - eval: function () { - return new tree.Anonymous(this.value, this.index, this.currentFileInfo, this.mapLines); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - }, - genCSS: function (env, output) { - output.add(this.value, this.currentFileInfo, this.index, this.mapLines); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - }, - genCSS: function (env, output) { - output.add(this.key + '='); - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - if (this.args) { - this.args = visitor.visitArray(this.args); - } - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - return new tree.Call(this.name, args, this.index, this.currentFileInfo); - }, - - genCSS: function (env, output) { - output.add(this.name + "(", this.currentFileInfo, this.index); - - for(var i = 0; i < this.args.length; i++) { - this.args[i].genCSS(env, output); - if (i + 1 < this.args.length) { - output.add(", "); - } - } - - output.add(")"); - }, - - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; - -var transparentKeyword = "transparent"; - -tree.Color.prototype = { - type: "Color", - eval: function () { return this; }, - luma: function () { return (0.2126 * this.rgb[0] / 255) + (0.7152 * this.rgb[1] / 255) + (0.0722 * this.rgb[2] / 255); }, - - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress, - alpha = tree.fround(env, this.alpha); - - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - if (alpha < 1) { - if (alpha === 0 && this.isTransparentKeyword) { - return transparentKeyword; - } - return "rgba(" + this.rgb.map(function (c) { - return clamp(Math.round(c), 255); - }).concat(clamp(alpha, 1)) - .join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.toRGB(); - - if (compress) { - var splitcolor = color.split(''); - - // Convert color to short format - if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) { - color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5]; - } - } - - return color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var rgb = []; - var alpha = this.alpha * (1 - other.alpha) + other.alpha; - for (var c = 0; c < 3; c++) { - rgb[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(rgb, alpha); - }, - - toRGB: function () { - return toHex(this.rgb); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - return toHex([this.alpha * 255].concat(this.rgb)); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - -tree.Color.fromKeyword = function(keyword) { - keyword = keyword.toLowerCase(); - - if (tree.colors.hasOwnProperty(keyword)) { - // detect named color - return new(tree.Color)(tree.colors[keyword].slice(1)); - } - if (keyword === transparentKeyword) { - var transparent = new(tree.Color)([0, 0, 0], 0); - transparent.isTransparentKeyword = true; - return transparent; - } -}; - -function toHex(v) { - return '#' + v.map(function (c) { - c = clamp(Math.round(c), 255); - return (c < 16 ? '0' : '') + c.toString(16); - }).join(''); -} - -function clamp(v, max) { - return Math.min(Math.max(v, 0), max); -} - -})(require('../tree')); - -(function (tree) { - -tree.Comment = function (value, silent, index, currentFileInfo) { - this.value = value; - this.silent = !!silent; - this.currentFileInfo = currentFileInfo; -}; -tree.Comment.prototype = { - type: "Comment", - genCSS: function (env, output) { - if (this.debugInfo) { - output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index); - } - output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n - }, - toCSS: tree.toCSS, - isSilent: function(env) { - var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced), - isCompressed = env.compress && !this.value.match(/^\/\*!/); - return this.silent || isReference || isCompressed; - }, - eval: function () { return this; }, - markReferenced: function () { - this.isReferenced = true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<' || op === '<='; - case 0: return op === '=' || op === '>=' || op === '=<' || op === '<='; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); - -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - genCSS: function (env, output) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = tree.fround(env, this.value), - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && this.unit.isLength()) { - output.add(strValue); - return; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - output.add(strValue); - this.unit.genCSS(env, output); - }, - toCSS: tree.toCSS, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - /*jshint noempty:false */ - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a = this.unify(), b = other.unify(), - aValue = a.value, bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - if (!b.unit.isEmpty() && a.unit.compare(b.unit) !== 0) { - return -1; - } - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'm', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, targetUnit, derivedConversions = {}, applyUnit; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - applyUnit = function (atomicUnit, denominator) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(applyUnit); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - genCSS: function (env, output) { - if (this.numerator.length >= 1) { - output.add(this.numerator[0]); - } else - if (this.denominator.length >= 1) { - output.add(this.denominator[0]); - } else - if ((!env || !env.strictUnits) && this.backupUnit) { - output.add(this.backupUnit); - } - }, - toCSS: tree.toCSS, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isLength: function () { - return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/)); - }, - - isEmpty: function () { - return this.numerator.length === 0 && this.denominator.length === 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length === 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, result = {}, mapUnit; - - mapUnit = function (atomicUnit) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }; - - for (var groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(mapUnit); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Directive = function (name, value, index, currentFileInfo) { - this.name = name; - - if (Array.isArray(value)) { - this.rules = [new(tree.Ruleset)(null, value)]; - this.rules[0].allowImports = true; - } else { - this.value = value; - } - this.index = index; - this.currentFileInfo = currentFileInfo; - -}; -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - if (this.value) { - this.value = visitor.visit(this.value); - } - }, - genCSS: function (env, output) { - output.add(this.name, this.currentFileInfo, this.index); - if (this.rules) { - tree.outputRuleset(env, output, this.rules); - } else { - output.add(' '); - this.value.genCSS(env, output); - output.add(';'); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var evaldDirective = this; - if (this.rules) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name, null, this.index, this.currentFileInfo); - evaldDirective.rules = [this.rules[0].eval(env)]; - evaldDirective.rules[0].root = true; - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - markReferenced: function () { - var i, rules; - this.isReferenced = true; - if (this.rules) { - rules = this.rules[0].rules; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Element = function (combinator, value, index, currentFileInfo) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - var value = this.value; - this.combinator = visitor.visit(this.combinator); - if (typeof value === "object") { - this.value = visitor.visit(value); - } - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index, - this.currentFileInfo); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env), this.currentFileInfo, this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value === '' && this.combinator.value.charAt(0) === '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - _outputMap: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : ' + ', - '~' : ' ~ ', - '>' : ' > ', - '|' : '|', - '^' : ' ^ ', - '^^' : ' ^^ ' - }, - _outputMapCompressed: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : '+', - '~' : '~', - '>' : '>', - '|' : '|', - '^' : '^', - '^^' : '^^' - }, - genCSS: function (env, output) { - output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - genCSS: function (env, output) { - for(var i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i + 1 < this.value.length) { - output.add(" "); - } - } - }, - toCSS: tree.toCSS, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - this.object_id = tree.Extend.next_id++; - this.parent_ids = [this.object_id]; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; -tree.Extend.next_id = 0; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i, - selectorElements; - - for(i = 0; i < selectors.length; i++) { - selectorElements = selectors[i].elements; - // duplicate the logic in genCSS function inside the selector node. - // future TODO - move both logics into the selector joiner visitor - if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") { - selectorElements[0].combinator.value = ' '; - } - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); - -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined || this.options.inline) { - this.css = !this.options.less || this.options.inline; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - this.path = visitor.visit(this.path); - if (!this.options.inline && this.root) { - this.root = visitor.visit(this.root); - } - }, - genCSS: function (env, output) { - if (this.css) { - output.add("@import ", this.currentFileInfo, this.index); - this.path.genCSS(env, output); - if (this.features) { - output.add(" "); - this.features.genCSS(env, output); - } - output.add(';'); - } - }, - toCSS: tree.toCSS, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - - if (!(path instanceof tree.URL)) { - if (rootpath) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath +pathValue; - } - } - path.value = env.normalizePath(path.value); - } - - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { return []; } - - if (this.options.inline) { - //todo needs to reference css file not import - var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true); - return this.features ? new(tree.Media)([contents], this.features.value) : [contents]; - } else if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" , - index: this.index }; - } - - var variables = env.frames[0].variables(); - for (var k in variables) { - if (variables.hasOwnProperty(k)) { - /*jshint loopfunc:true */ - context[k.slice(1)] = { - value: variables[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message.replace(/["]/g, "'") + "'" , - index: this.index }; - } - if (typeof(result) === 'number') { - return new(tree.Dimension)(result); - } else if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Keyword = function (value) { this.value = value; }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); - -(function (tree) { - -tree.Media = function (value, features, index, currentFileInfo) { - this.index = index; - this.currentFileInfo = currentFileInfo; - - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.rules = [new(tree.Ruleset)(selectors, value)]; - this.rules[0].allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - }, - genCSS: function (env, output) { - output.add('@media ', this.currentFileInfo, this.index); - this.features.genCSS(env, output); - tree.outputRuleset(env, output, this.rules); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)(null, [], this.index, this.currentFileInfo); - if(this.debugInfo) { - this.rules[0].debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.rules[0]); - media.rules = [this.rules[0].eval(env)]; - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env); - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', this.index, this.currentFileInfo), - sels = [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)]; - sels[0].mediaEmpty = true; - return sels; - }, - markReferenced: function () { - var i, rules = this.rules[0].rules; - this.isReferenced = true; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])]; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = (args && args.length) ? args : null; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - if (this.selector) { - this.selector = visitor.visit(this.selector); - } - if (this.arguments) { - this.arguments = visitor.visitArray(this.arguments); - } - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule, - candidates = [], candidate, conditionResult = [], defaultFunc = tree.defaultFunc, - defaultResult, defNone = 0, defTrue = 1, defFalse = 2, count; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - - // To make `default()` function independent of definition order we have two "subpasses" here. - // At first we evaluate each guard *twice* (with `default() == true` and `default() == false`), - // and build candidate list with corresponding flags. Then, when we know all possible matches, - // we make a final decision. - - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - - if (mixin.matchArgs(args, env)) { - candidate = {mixin: mixin, group: defNone}; - - if (mixin.matchCondition) { - for (f = 0; f < 2; f++) { - defaultFunc.value(f); - conditionResult[f] = mixin.matchCondition(args, env); - } - if (conditionResult[0] || conditionResult[1]) { - if (conditionResult[0] != conditionResult[1]) { - candidate.group = conditionResult[1] ? - defTrue : defFalse; - } - - candidates.push(candidate); - } - } - else { - candidates.push(candidate); - } - - match = true; - } - } - - defaultFunc.reset(); - - count = [0, 0, 0]; - for (m = 0; m < candidates.length; m++) { - count[candidates[m].group]++; - } - - if (count[defNone] > 0) { - defaultResult = defFalse; - } else { - defaultResult = defTrue; - if ((count[defTrue] + count[defFalse]) > 1) { - throw { type: 'Runtime', - message: 'Ambiguous use of `default()` found when matching for `' - + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - for (m = 0; m < candidates.length; m++) { - candidate = candidates[m].group; - if ((candidate === defNone) || (candidate === defaultResult)) { - try { - mixin = candidates[m].mixin; - if (!(mixin instanceof tree.mixin.Definition)) { - mixin = new tree.mixin.Definition("", [], mixin.rules, null, false); - mixin.originalRuleset = mixins[m].originalRuleset || mixins[m]; - } - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - } - - if (match) { - if (!this.currentFileInfo || !this.currentFileInfo.reference) { - for (i = 0; i < rules.length; i++) { - rule = rules[i]; - if (rule.markReferenced) { - rule.markReferenced(); - } - } - } - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - }, - format: function (args) { - return this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")"; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1; } - else { return count; } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - if (this.params && this.params.length) { - this.params = visitor.visitArray(this.params); - } - this.rules = visitor.visitArray(this.rules); - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - /*jshint boss:true */ - var frame = new(tree.Ruleset)(null, null), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.prependRule(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) { continue; } - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.prependRule(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.prependRule(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - rules, ruleset; - - frame.prependRule(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules); - ruleset.originalRuleset = this; - ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames))); - if (important) { - ruleset = this.parent.makeImportant.apply(ruleset); - } - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] // the parameter variables - .concat(this.frames) // the parent namespace/mixin frames - .concat(env.frames)))) { // the current environment frames - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (! this.variadic) { - if (argsLength < this.required) { return false; } - if (argsLength > this.params.length) { return false; } - } else { - if (argsLength < (this.required - 1)) { return false; } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('-'); - this.value.genCSS(env, output); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env); - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - a = a.toColor(); - } - if (b instanceof tree.Dimension && a instanceof tree.Color) { - b = b.toColor(); - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - genCSS: function (env, output) { - this.operands[0].genCSS(env, output); - if (this.isSpaced) { - output.add(" "); - } - output.add(this.op); - if (this.isSpaced) { - output.add(" "); - } - this.operands[1].genCSS(env, output); - }, - toCSS: tree.toCSS -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('('); - this.value.genCSS(env, output); - output.add(')'); - }, - toCSS: tree.toCSS, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - genCSS: function (env, output) { - if (!this.escaped) { - output.add(this.quote, this.currentFileInfo, this.index); - } - output.add(this.value); - if (!this.escaped) { - output.add(this.quote); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.merge = merge; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - this.variable = name.charAt && (name.charAt(0) === '@'); -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index); - try { - this.value.genCSS(env, output); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index); - }, - toCSS: tree.toCSS, - eval: function (env) { - var strictMathBypass = false, name = this.name; - if (typeof name !== "string") { - // expand 'primitive' name directly to get - // things faster (~10% for benchmark.less): - name = (name.length === 1) - && (name[0] instanceof tree.Keyword) - ? name[0].value : evalName(env, name); - } - if (name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - return new(tree.Rule)(name, - this.value.eval(env), - this.important, - this.merge, - this.index, this.currentFileInfo, this.inline); - } - catch(e) { - e.index = e.index || this.index; - throw e; - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.merge, - this.index, this.currentFileInfo, this.inline); - } -}; - -function evalName(env, name) { - var value = "", i, n = name.length, - output = {add: function (s) {value += s;}}; - for (i = 0; i < n; i++) { - name[i].eval(env).genCSS(env, output); - } - return value; -} - -})(require('../tree')); - -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - if (this.paths) { - visitor.visitArray(this.paths, true); - } else if (this.selectors) { - this.selectors = visitor.visitArray(this.selectors); - } - if (this.rules && this.rules.length) { - this.rules = visitor.visitArray(this.rules); - } - }, - eval: function (env) { - var thisSelectors = this.selectors, selectors, - selCnt, i, defaultFunc = tree.defaultFunc; - if (thisSelectors && (selCnt = thisSelectors.length)) { - selectors = []; - defaultFunc.error({ - type: "Syntax", - message: "it is currently only allowed in parametric mixin guards," - }); - for (i = 0; i < selCnt; i++) { - selectors.push(thisSelectors[i].eval(env)); - } - defaultFunc.reset(); - } - - var rules = this.rules ? this.rules.slice(0) : null, - ruleset = new(tree.Ruleset)(selectors, rules, this.strictImports), - rule, subRule; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - var envFrames = env.frames; - envFrames.unshift(ruleset); - - // currrent selectors - var envSelectors = env.selectors; - if (!envSelectors) { - env.selectors = envSelectors = []; - } - envSelectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - var rsRules = ruleset.rules, rsRuleCnt = rsRules ? rsRules.length : 0; - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Definition) { - rsRules[i].frames = envFrames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Call) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (i = 0; i < rsRules.length; i++) { - rule = rsRules[i]; - if (! (rule instanceof tree.mixin.Definition)) { - rsRules[i] = rule = rule.eval ? rule.eval(env) : rule; - // for rulesets, check if it is a css guard and can be removed - if (rule instanceof tree.Ruleset && rule.selectors && rule.selectors.length === 1) { - // check if it can be folded in (e.g. & where) - if (rule.selectors[0].isJustParentSelector()) { - rsRules.splice(i--, 1); - // cannot call if there is no selector, so we can just continue - if (!rule.selectors[0].evaldCondition) { - continue; - } - for(var j = 0; j < rule.rules.length; j++) { - subRule = rule.rules[j]; - if (!(subRule instanceof tree.Rule) || !subRule.variable) { - rsRules.splice(++i, 0, subRule); - } - } - } - } - } - } - - // Pop the stack - envFrames.shift(); - envSelectors.shift(); - - if (env.mediaBlocks) { - for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var rules = this.rules, i, importRules; - if (!rules) { return; } - - for (i = 0; i < rules.length; i++) { - if (rules[i] instanceof tree.Import) { - importRules = rules[i].eval(env); - if (importRules && importRules.length) { - rules.splice.apply(rules, [i, 1].concat(importRules)); - i+= importRules.length-1; - } else { - rules.splice(i, 1, importRules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - // lets you call a css selector with a guard - matchCondition: function (args, env) { - var lastSelector = this.selectors[this.selectors.length-1]; - if (!lastSelector.evaldCondition) { - return false; - } - if (lastSelector.condition && - !lastSelector.condition.eval( - new(tree.evalEnv)(env, - env.frames))) { - return false; - } - return true; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (!this._variables) { - this._variables = !this.rules ? {} : this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - return this._variables; - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (!this.rules) { return null; } - - var _Ruleset = tree.Ruleset, _MixinDefinition = tree.mixin.Definition, - filtRules = [], rules = this.rules, cnt = rules.length, - i, rule; - - for (i = 0; i < cnt; i++) { - rule = rules[i]; - if ((rule instanceof _Ruleset) || (rule instanceof _MixinDefinition)) { - filtRules.push(rule); - } - } - - return filtRules; - }, - prependRule: function (rule) { - var rules = this.rules; - if (rules) { rules.unshift(rule); } else { this.rules = [ rule ]; } - }, - find: function (selector, self) { - self = self || this; - var rules = [], match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key]; } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - match = selector.match(rule.selectors[j]); - if (match) { - if (selector.elements.length > match) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(match)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - this._lookups[key] = rules; - return rules; - }, - genCSS: function (env, output) { - var i, j, - ruleNodes = [], - rulesetNodes = [], - rulesetNodeCnt, - debugInfo, // Line number debugging - rule, - path; - - env.tabLevel = (env.tabLevel || 0); - - if (!this.root) { - env.tabLevel++; - } - - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "), - sep; - - for (i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - if (rule.rules || (rule instanceof tree.Media) || rule instanceof tree.Directive || (this.root && rule instanceof tree.Comment)) { - rulesetNodes.push(rule); - } else { - ruleNodes.push(rule); - } - } - - // If this is the root node, we don't render - // a selector, or {}. - if (!this.root) { - debugInfo = tree.debugInfo(env, this, tabSetStr); - - if (debugInfo) { - output.add(debugInfo); - output.add(tabSetStr); - } - - var paths = this.paths, pathCnt = paths.length, - pathSubCnt; - - sep = env.compress ? ',' : (',\n' + tabSetStr); - - for (i = 0; i < pathCnt; i++) { - path = paths[i]; - if (!(pathSubCnt = path.length)) { continue; } - if (i > 0) { output.add(sep); } - - env.firstSelector = true; - path[0].genCSS(env, output); - - env.firstSelector = false; - for (j = 1; j < pathSubCnt; j++) { - path[j].genCSS(env, output); - } - } - - output.add((env.compress ? '{' : ' {\n') + tabRuleStr); - } - - // Compile rules and rulesets - for (i = 0; i < ruleNodes.length; i++) { - rule = ruleNodes[i]; - - // @page{ directive ends up with root elements inside it, a mix of rules and rulesets - // In this instance we do not know whether it is the last property - if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) { - env.lastRule = true; - } - - if (rule.genCSS) { - rule.genCSS(env, output); - } else if (rule.value) { - output.add(rule.value.toString()); - } - - if (!env.lastRule) { - output.add(env.compress ? '' : ('\n' + tabRuleStr)); - } else { - env.lastRule = false; - } - } - - if (!this.root) { - output.add((env.compress ? '}' : '\n' + tabSetStr + '}')); - env.tabLevel--; - } - - sep = (env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr); - rulesetNodeCnt = rulesetNodes.length; - if (rulesetNodeCnt) { - if (ruleNodes.length && sep) { output.add(sep); } - rulesetNodes[0].genCSS(env, output); - for (i = 1; i < rulesetNodeCnt; i++) { - if (sep) { output.add(sep); } - rulesetNodes[i].genCSS(env, output); - } - } - - if (!output.isEmpty() && !env.compress && this.firstRoot) { - output.add('\n'); - } - }, - - toCSS: tree.toCSS, - - markReferenced: function () { - for (var s = 0; s < this.selectors.length; s++) { - this.selectors[s].markReferenced(); - } - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for (i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for (j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length === 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', el.index, el.currentFileInfo)); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for (k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = selector.createDerived([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for (i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length === 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for (i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); - -(function (tree) { - -tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) { - this.elements = elements; - this.extendList = extendList; - this.condition = condition; - this.currentFileInfo = currentFileInfo || {}; - this.isReferenced = isReferenced; - if (!condition) { - this.evaldCondition = true; - } -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - if (this.elements) { - this.elements = visitor.visitArray(this.elements); - } - if (this.extendList) { - this.extendList = visitor.visitArray(this.extendList); - } - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - createDerived: function(elements, extendList, evaldCondition) { - evaldCondition = (evaldCondition != null) ? evaldCondition : this.evaldCondition; - var newSelector = new(tree.Selector)(elements, extendList || this.extendList, null, this.index, this.currentFileInfo, this.isReferenced); - newSelector.evaldCondition = evaldCondition; - newSelector.mediaEmpty = this.mediaEmpty; - return newSelector; - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - olen, i; - - other.CacheElements(); - - olen = other._elements.length; - if (olen === 0 || len < olen) { - return 0; - } else { - for (i = 0; i < olen; i++) { - if (elements[i].value !== other._elements[i]) { - return 0; - } - } - } - - return olen; // return number of matched elements - }, - CacheElements: function(){ - var css = '', len, v, i; - - if( !this._elements ){ - - len = this.elements.length; - for(i = 0; i < len; i++){ - - v = this.elements[i]; - css += v.combinator.value; - - if( !v.value.value ){ - css += v.value; - continue; - } - - if( typeof v.value.value !== "string" ){ - css = ''; - break; - } - css += v.value.value; - } - - this._elements = css.match(/[,&#\.\w-]([\w-]|(\\.))*/g); - - if (this._elements) { - if (this._elements[0] === "&") { - this._elements.shift(); - } - - } else { - this._elements = []; - } - - } - }, - isJustParentSelector: function() { - return !this.mediaEmpty && - this.elements.length === 1 && - this.elements[0].value === '&' && - (this.elements[0].combinator.value === ' ' || this.elements[0].combinator.value === ''); - }, - eval: function (env) { - var evaldCondition = this.condition && this.condition.eval(env), - elements = this.elements, extendList = this.extendList; - - elements = elements && elements.map(function (e) { return e.eval(env); }); - extendList = extendList && extendList.map(function(extend) { return extend.eval(env); }); - - return this.createDerived(elements, extendList, evaldCondition); - }, - genCSS: function (env, output) { - var i, element; - if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") { - output.add(' ', this.currentFileInfo, this.index); - } - if (!this._css) { - //TODO caching? speed comparison? - for(i = 0; i < this.elements.length; i++) { - element = this.elements[i]; - element.genCSS(env, output); - } - } - }, - toCSS: tree.toCSS, - markReferenced: function () { - this.isReferenced = true; - }, - getIsReferenced: function() { - return !this.currentFileInfo.reference || this.isReferenced; - }, - getIsOutput: function() { - return this.evaldCondition; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - eval: function () { return this; } -}; - -})(require('../tree')); - -(function (tree) { - -tree.URL = function (val, currentFileInfo, isEvald) { - this.value = val; - this.currentFileInfo = currentFileInfo; - this.isEvald = isEvald; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add("url("); - this.value.genCSS(env, output); - output.add(")"); - }, - toCSS: tree.toCSS, - eval: function (ctx) { - var val = this.value.eval(ctx), - rootpath; - - if (!this.isEvald) { - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - val.value = ctx.normalizePath(val.value); - - // Add url args if enabled - if (ctx.urlArgs) { - if (!val.value.match(/^\s*data:/)) { - var delimiter = val.value.indexOf('?') === -1 ? '?' : '&'; - var urlArgs = delimiter + ctx.urlArgs; - if (val.value.indexOf('#') !== -1) { - val.value = val.value.replace('#', urlArgs + '#'); - } else { - val.value += urlArgs; - } - } - } - } - - return new(tree.URL)(val, this.currentFileInfo, true); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - genCSS: function (env, output) { - var i; - for(i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i+1 < this.value.length) { - output.add((env && env.compress) ? ',' : ', '); - } - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { - this.name = name; - this.index = index; - this.currentFileInfo = currentFileInfo || {}; -}; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, name = this.name; - - if (name.indexOf('@@') === 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - variable = tree.find(env.frames, function (frame) { - var v = frame.variable(name); - if (v) { - return v.value.eval(env); - } - }); - if (variable) { - this.evaluating = false; - return variable; - } else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); - -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // map - filename to contents of all the files - 'contentsIgnoredChars', // map - filename to lines at the begining of each file to ignore - 'relativeUrls', // option - whether to adjust URL's to be relative - 'rootpath', // option - rootpath to append to URL's - 'strictImports', // option - - 'insecure', // option - whether to allow imports from insecure ssl hosts - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true - 'mime', // browser only - mime type for sheet import - 'useFileCache', // browser only - whether to use the per file session cache - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' - absolute path to the entry file - // 'reference' - whether the file should not be output and only output parts that are referenced - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.contentsIgnoredChars) { this.contentsIgnoredChars = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits', // whether units need to evaluate correctly - 'cleancss', // whether to compress with clean-css - 'sourceMap', // whether to output a source map - 'importMultiple', // whether we are currently importing multiple copies - 'urlArgs' // whether to add args into url tokens - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - tree.evalEnv.prototype.normalizePath = function( path ) { - var - segments = path.split("/").reverse(), - segment; - - path = []; - while (segments.length !== 0 ) { - segment = segments.pop(); - switch( segment ) { - case ".": - break; - case "..": - if ((path.length === 0) || (path[path.length - 1] === "..")) { - path.push( segment ); - } else { - path.pop(); - } - break; - default: - path.push( segment ); - break; - } - } - - return path.join("/"); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - }; - -})(require('./tree')); - -(function (tree) { - - var _visitArgs = { visitDeeper: true }, - _hasIndexed = false; - - function _noop(node) { - return node; - } - - function indexNodeTypes(parent, ticker) { - // add .typeIndex to tree node types for lookup table - var key, child; - for (key in parent) { - if (parent.hasOwnProperty(key)) { - child = parent[key]; - switch (typeof child) { - case "function": - // ignore bound functions directly on tree which do not have a prototype - // or aren't nodes - if (child.prototype && child.prototype.type) { - child.prototype.typeIndex = ticker++; - } - break; - case "object": - ticker = indexNodeTypes(child, ticker); - break; - } - } - } - return ticker; - } - - tree.visitor = function(implementation) { - this._implementation = implementation; - this._visitFnCache = []; - - if (!_hasIndexed) { - indexNodeTypes(tree, 1); - _hasIndexed = true; - } - }; - - tree.visitor.prototype = { - visit: function(node) { - if (!node) { - return node; - } - - var nodeTypeIndex = node.typeIndex; - if (!nodeTypeIndex) { - return node; - } - - var visitFnCache = this._visitFnCache, - impl = this._implementation, - aryIndx = nodeTypeIndex << 1, - outAryIndex = aryIndx | 1, - func = visitFnCache[aryIndx], - funcOut = visitFnCache[outAryIndex], - visitArgs = _visitArgs, - fnName; - - visitArgs.visitDeeper = true; - - if (!func) { - fnName = "visit" + node.type; - func = impl[fnName] || _noop; - funcOut = impl[fnName + "Out"] || _noop; - visitFnCache[aryIndx] = func; - visitFnCache[outAryIndex] = funcOut; - } - - if (func !== _noop) { - var newNode = func.call(impl, node, visitArgs); - if (impl.isReplacing) { - node = newNode; - } - } - - if (visitArgs.visitDeeper && node && node.accept) { - node.accept(this); - } - - if (funcOut != _noop) { - funcOut.call(impl, node); - } - - return node; - }, - visitArray: function(nodes, nonReplacing) { - if (!nodes) { - return nodes; - } - - var cnt = nodes.length, i; - - // Non-replacing - if (nonReplacing || !this._implementation.isReplacing) { - for (i = 0; i < cnt; i++) { - this.visit(nodes[i]); - } - return nodes; - } - - // Replacing - var out = []; - for (i = 0; i < cnt; i++) { - var evald = this.visit(nodes[i]); - if (!evald.splice) { - out.push(evald); - } else if (evald.length) { - this.flatten(evald, out); - } - } - return out; - }, - flatten: function(arr, out) { - if (!out) { - out = []; - } - - var cnt, i, item, - nestedCnt, j, nestedItem; - - for (i = 0, cnt = arr.length; i < cnt; i++) { - item = arr[i]; - if (!item.splice) { - out.push(item); - continue; - } - - for (j = 0, nestedCnt = item.length; j < nestedCnt; j++) { - nestedItem = item[j]; - if (!nestedItem.splice) { - out.push(nestedItem); - } else if (nestedItem.length) { - this.flatten(nestedItem, out); - } - } - } - - return out; - } - }; - -})(require('./tree')); -(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode, - inlineCSS = importNode.options.inline; - - if (!importNode.css || inlineCSS) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - - if (importNode.options.multiple) { - env.importMultiple = true; - } - - this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, imported, fullPath) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - - if (imported && !env.importMultiple) { importNode.skip = imported; } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - importNode.importedFilename = fullPath; - if (!inlineCSS && !importNode.skip) { - new(tree.importVisitor)(importVisitor._importer, subFinish, env) - .run(root); - return; - } - } - - subFinish(); - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree')); -(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1], - paths = [], selectors; - - this.contexts.push(paths); - - if (! rulesetNode.root) { - selectors = rulesetNode.selectors; - if (selectors) { - selectors = selectors.filter(function(selector) { return selector.getIsOutput(); }); - rulesetNode.selectors = selectors.length ? selectors : (selectors = null); - if (selectors) { rulesetNode.joinSelectors(paths, context, selectors); } - } - if (!selectors) { rulesetNode.rules = null; } - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree')); -(function (tree) { - tree.toCSSVisitor = function(env) { - this._visitor = new tree.visitor(this); - this._env = env; - }; - - tree.toCSSVisitor.prototype = { - isReplacing: true, - run: function (root) { - return this._visitor.visit(root); - }, - - visitRule: function (ruleNode, visitArgs) { - if (ruleNode.variable) { - return []; - } - return ruleNode; - }, - - visitMixinDefinition: function (mixinNode, visitArgs) { - // mixin definitions do not get eval'd - this means they keep state - // so we have to clear that state here so it isn't used if toCSS is called twice - mixinNode.frames = []; - return []; - }, - - visitExtend: function (extendNode, visitArgs) { - return []; - }, - - visitComment: function (commentNode, visitArgs) { - if (commentNode.isSilent(this._env)) { - return []; - } - return commentNode; - }, - - visitMedia: function(mediaNode, visitArgs) { - mediaNode.accept(this._visitor); - visitArgs.visitDeeper = false; - - if (!mediaNode.rules.length) { - return []; - } - return mediaNode; - }, - - visitDirective: function(directiveNode, visitArgs) { - if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) { - return []; - } - if (directiveNode.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (this.charset) { - if (directiveNode.debugInfo) { - var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n"); - comment.debugInfo = directiveNode.debugInfo; - return this._visitor.visit(comment); - } - return []; - } - this.charset = true; - } - return directiveNode; - }, - - checkPropertiesInRoot: function(rules) { - var ruleNode; - for(var i = 0; i < rules.length; i++) { - ruleNode = rules[i]; - if (ruleNode instanceof tree.Rule && !ruleNode.variable) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null}; - } - } - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var rule, rulesets = []; - if (rulesetNode.firstRoot) { - this.checkPropertiesInRoot(rulesetNode.rules); - } - if (! rulesetNode.root) { - if (rulesetNode.paths) { - rulesetNode.paths = rulesetNode.paths - .filter(function(p) { - var i; - if (p[0].elements[0].combinator.value === ' ') { - p[0].elements[0].combinator = new(tree.Combinator)(''); - } - for(i = 0; i < p.length; i++) { - if (p[i].getIsReferenced() && p[i].getIsOutput()) { - return true; - } - } - return false; - }); - } - - // Compile rules and rulesets - var nodeRules = rulesetNode.rules, nodeRuleCnt = nodeRules ? nodeRules.length : 0; - for (var i = 0; i < nodeRuleCnt; ) { - rule = nodeRules[i]; - if (rule && rule.rules) { - // visit because we are moving them out from being a child - rulesets.push(this._visitor.visit(rule)); - nodeRules.splice(i, 1); - nodeRuleCnt--; - continue; - } - i++; - } - // accept the visitor to remove rules and refactor itself - // then we can decide now whether we want it or not - if (nodeRuleCnt > 0) { - rulesetNode.accept(this._visitor); - } else { - rulesetNode.rules = null; - } - visitArgs.visitDeeper = false; - - nodeRules = rulesetNode.rules; - if (nodeRules) { - this._mergeRules(nodeRules); - nodeRules = rulesetNode.rules; - } - if (nodeRules) { - this._removeDuplicateRules(nodeRules); - nodeRules = rulesetNode.rules; - } - - // now decide whether we keep the ruleset - if (nodeRules && nodeRules.length > 0 && rulesetNode.paths.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } else { - rulesetNode.accept(this._visitor); - visitArgs.visitDeeper = false; - if (rulesetNode.firstRoot || (rulesetNode.rules && rulesetNode.rules.length > 0)) { - rulesets.splice(0, 0, rulesetNode); - } - } - if (rulesets.length === 1) { - return rulesets[0]; - } - return rulesets; - }, - - _removeDuplicateRules: function(rules) { - if (!rules) { return; } - - // remove duplicates - var ruleCache = {}, - ruleList, rule, i; - - for(i = rules.length - 1; i >= 0 ; i--) { - rule = rules[i]; - if (rule instanceof tree.Rule) { - if (!ruleCache[rule.name]) { - ruleCache[rule.name] = rule; - } else { - ruleList = ruleCache[rule.name]; - if (ruleList instanceof tree.Rule) { - ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)]; - } - var ruleCSS = rule.toCSS(this._env); - if (ruleList.indexOf(ruleCSS) !== -1) { - rules.splice(i, 1); - } else { - ruleList.push(ruleCSS); - } - } - } - } - }, - - _mergeRules: function (rules) { - if (!rules) { return; } - - var groups = {}, - parts, - rule, - key; - - for (var i = 0; i < rules.length; i++) { - rule = rules[i]; - - if ((rule instanceof tree.Rule) && rule.merge) { - key = [rule.name, - rule.important ? "!" : ""].join(","); - - if (!groups[key]) { - groups[key] = []; - } else { - rules.splice(i--, 1); - } - - groups[key].push(rule); - } - } - - Object.keys(groups).map(function (k) { - parts = groups[k]; - - if (parts.length > 1) { - rule = parts[0]; - - rule.value = new (tree.Value)(parts.map(function (p) { - return p.value; - })); - } - }); - } - }; - -})(require('./tree')); -(function (tree) { - /*jshint loopfunc:true */ - - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - var rules = rulesetNode.rules, ruleCnt = rules ? rules.length : 0; - for(i = 0; i < ruleCnt; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rules[i]); - rulesetNode.extendOnEveryPath = true; - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - var paths = rulesetNode.paths; - for(i = 0; i < paths.length; i++) { - var selectorPath = paths[i], - selector = selectorPath[selectorPath.length - 1], - selExtendList = selector.extendList; - - extendList = selExtendList ? selExtendList.slice(0).concat(allSelectorsExtendList) - : allSelectorsExtendList; - - if (extendList) { - extendList = extendList.map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - } - - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if( extend.parent_ids.indexOf( targetExtend.object_id ) >= 0 ){ continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parent_ids = newExtend.parent_ids.concat(targetExtend.parent_ids, extend.parent_ids); - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (rulesetNode.extendOnEveryPath) { continue; } - var extendList = selectorPath[selectorPath.length-1].extendList; - if (extendList && extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator === '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - elementValue1 = elementValue1.value; - elementValue2 = elementValue2.value; - if (elementValue1 instanceof tree.Selector) { - if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) { - return false; - } - for(var i = 0; i currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - newElements = selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)); - - if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) { - path[path.length - 1].elements = - path[path.length - 1].elements.concat(newElements); - } else { - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - newElements - )); - } - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.sourceMapOutput = function (options) { - this._css = []; - this._rootNode = options.rootNode; - this._writeSourceMap = options.writeSourceMap; - this._contentsMap = options.contentsMap; - this._contentsIgnoredCharsMap = options.contentsIgnoredCharsMap; - this._sourceMapFilename = options.sourceMapFilename; - this._outputFilename = options.outputFilename; - this._sourceMapURL = options.sourceMapURL; - if (options.sourceMapBasepath) { - this._sourceMapBasepath = options.sourceMapBasepath.replace(/\\/g, '/'); - } - this._sourceMapRootpath = options.sourceMapRootpath; - this._outputSourceFiles = options.outputSourceFiles; - this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator; - - if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') { - this._sourceMapRootpath += '/'; - } - - this._lineNumber = 0; - this._column = 0; - }; - - tree.sourceMapOutput.prototype.normalizeFilename = function(filename) { - filename = filename.replace(/\\/g, '/'); - - if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) { - filename = filename.substring(this._sourceMapBasepath.length); - if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') { - filename = filename.substring(1); - } - } - return (this._sourceMapRootpath || "") + filename; - }; - - tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) { - - //ignore adding empty strings - if (!chunk) { - return; - } - - var lines, - sourceLines, - columns, - sourceColumns, - i; - - if (fileInfo) { - var inputSource = this._contentsMap[fileInfo.filename]; - - // remove vars/banner added to the top of the file - if (this._contentsIgnoredCharsMap[fileInfo.filename]) { - // adjust the index - index -= this._contentsIgnoredCharsMap[fileInfo.filename]; - if (index < 0) { index = 0; } - // adjust the source - inputSource = inputSource.slice(this._contentsIgnoredCharsMap[fileInfo.filename]); - } - inputSource = inputSource.substring(0, index); - sourceLines = inputSource.split("\n"); - sourceColumns = sourceLines[sourceLines.length-1]; - } - - lines = chunk.split("\n"); - columns = lines[lines.length-1]; - - if (fileInfo) { - if (!mapLines) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column}, - original: { line: sourceLines.length, column: sourceColumns.length}, - source: this.normalizeFilename(fileInfo.filename)}); - } else { - for(i = 0; i < lines.length; i++) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0}, - original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0}, - source: this.normalizeFilename(fileInfo.filename)}); - } - } - } - - if (lines.length === 1) { - this._column += columns.length; - } else { - this._lineNumber += lines.length - 1; - this._column = columns.length; - } - - this._css.push(chunk); - }; - - tree.sourceMapOutput.prototype.isEmpty = function() { - return this._css.length === 0; - }; - - tree.sourceMapOutput.prototype.toCSS = function(env) { - this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null }); - - if (this._outputSourceFiles) { - for(var filename in this._contentsMap) { - if (this._contentsMap.hasOwnProperty(filename)) - { - var source = this._contentsMap[filename]; - if (this._contentsIgnoredCharsMap[filename]) { - source = source.slice(this._contentsIgnoredCharsMap[filename]); - } - this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), source); - } - } - } - - this._rootNode.genCSS(env, this); - - if (this._css.length > 0) { - var sourceMapURL, - sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); - - if (this._sourceMapURL) { - sourceMapURL = this._sourceMapURL; - } else if (this._sourceMapFilename) { - sourceMapURL = this.normalizeFilename(this._sourceMapFilename); - } - - if (this._writeSourceMap) { - this._writeSourceMap(sourceMapContent); - } else { - sourceMapURL = "data:application/json," + encodeURIComponent(sourceMapContent); - } - - if (sourceMapURL) { - this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */"); - } - } - - return this._css.join(''); - }; - -})(require('./tree')); - -// -// browser.js - client-side engine -// -/*global less, window, document, XMLHttpRequest, location */ - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - (location.port && - location.port.length > 0) || - isFileProtocol ? 'development' - : 'production'); - -var logLevel = { - info: 2, - errors: 1, - none: 0 -}; - -// The amount of logging in the javascript console. -// 2 - Information and errors -// 1 - Errors -// 0 - None -// Defaults to 2 -less.logLevel = typeof(less.logLevel) != 'undefined' ? less.logLevel : logLevel.info; - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - if (less.functions.hasOwnProperty(func)) { - less.tree.functions[func] = less.functions[func]; - } - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -var typePattern = /^text\/(x-)?less$/; -var cache = null; -var fileCache = {}; - -function log(str, level) { - if (less.env == 'development' && typeof(console) !== 'undefined' && less.logLevel >= level) { - console.log('less: ' + str); - } -} - -function extractId(href) { - return href.replace(/^[a-z-]+:\/+?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function errorConsole(e, rootHref) { - var template = '{line} {content}'; - var filename = e.filename || rootHref; - var errors = []; - var content = (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - " in " + filename + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n' + - errors.join('\n'); - } else if (e.stack) { - content += e.stack; - } - log(content, logLevel.errors); -} - -function createCSS(styles, sheet, lastModified) { - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If this has already been inserted into the DOM, we may need to replace it - var oldCss = document.getElementById(id); - var keepOldCss = false; - - // Create a new stylesheet node for insertion or (if necessary) replacement - var css = document.createElement('style'); - css.setAttribute('type', 'text/css'); - if (sheet.media) { - css.setAttribute('media', sheet.media); - } - css.id = id; - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - css.appendChild(document.createTextNode(styles)); - - // If new contents match contents of oldCss, don't replace oldCss - keepOldCss = (oldCss !== null && oldCss.childNodes.length > 0 && css.childNodes.length > 0 && - oldCss.firstChild.nodeValue === css.firstChild.nodeValue); - } - - var head = document.getElementsByTagName('head')[0]; - - // If there is no oldCss, just append; otherwise, only append if we need - // to replace oldCss with an updated stylesheet - if (oldCss === null || keepOldCss === false) { - var nextEl = sheet && sheet.nextSibling || null; - if (nextEl) { - nextEl.parentNode.insertBefore(css, nextEl); - } else { - head.appendChild(css); - } - } - if (oldCss && keepOldCss === false) { - oldCss.parentNode.removeChild(oldCss); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.', logLevel.info); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save', logLevel.errors); - } - } -} - -function errorHTML(e, rootHref) { - var id = 'less-error-message:' + extractId(rootHref || ""); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, errors = []; - var filename = e.filename || rootHref; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - '

    ' + '

    in ' + filenameNoPath + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - '
      ' + errors.join('') + '
    '; - } else if (e.stack) { - content += '
    ' + e.stack.split('\n').slice(1).join('
    '); - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #dd6666;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.line {', - 'color: #ff0000;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); - - if (less.env == 'development') { - timer = setInterval(function () { - if (document.body) { - if (document.getElementById(id)) { - document.body.replaceChild(elem, document.getElementById(id)); - } else { - document.body.insertBefore(elem, document.body.firstChild); - } - clearInterval(timer); - } - }, 10); - } -} - -function error(e, rootHref) { - if (!less.errorReporting || less.errorReporting === "html") { - errorHTML(e, rootHref); - } else if (less.errorReporting === "console") { - errorConsole(e, rootHref); - } else if (typeof less.errorReporting === 'function') { - less.errorReporting("add", e, rootHref); - } -} - -function removeErrorHTML(path) { - var node = document.getElementById('less-error-message:' + extractId(path)); - if (node) { - node.parentNode.removeChild(node); - } -} - -function removeErrorConsole(path) { - //no action -} - -function removeError(path) { - if (!less.errorReporting || less.errorReporting === "html") { - removeErrorHTML(path); - } else if (less.errorReporting === "console") { - removeErrorConsole(path); - } else if (typeof less.errorReporting === 'function') { - less.errorReporting("remove", path); - } -} - -function loadStyles(modifyVars) { - var styles = document.getElementsByTagName('style'), - style; - for (var i = 0; i < styles.length; i++) { - style = styles[i]; - if (style.type.match(typePattern)) { - var env = new less.tree.parseEnv(less), - lessText = style.innerHTML || ''; - env.filename = document.location.href.replace(/#.*$/, ''); - - if (modifyVars || less.globalVars) { - env.useFileCache = true; - } - - /*jshint loopfunc:true */ - // use closure to store current value of i - var callback = (function(style) { - return function (e, cssAST) { - if (e) { - return error(e, "inline"); - } - var css = cssAST.toCSS(less); - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }; - })(style); - new(less.Parser)(env).parse(lessText, callback, {globalVars: less.globalVars, modifyVars: modifyVars}); - } - } -} - -function extractUrlParts(url, baseUrl) { - // urlParts[1] = protocol&hostname || / - // urlParts[2] = / if path relative to host base - // urlParts[3] = directories - // urlParts[4] = filename - // urlParts[5] = parameters - - var urlPartsRegex = /^((?:[a-z-]+:)?\/+?(?:[^\/\?#]*\/)|([\/\\]))?((?:[^\/\\\?#]*[\/\\])*)([^\/\\\?#]*)([#\?].*)?$/i, - urlParts = url.match(urlPartsRegex), - returner = {}, directories = [], i, baseUrlParts; - - if (!urlParts) { - throw new Error("Could not parse sheet href - '"+url+"'"); - } - - // Stylesheets in IE don't always return the full path - if (!urlParts[1] || urlParts[2]) { - baseUrlParts = baseUrl.match(urlPartsRegex); - if (!baseUrlParts) { - throw new Error("Could not parse page url - '"+baseUrl+"'"); - } - urlParts[1] = urlParts[1] || baseUrlParts[1] || ""; - if (!urlParts[2]) { - urlParts[3] = baseUrlParts[3] + urlParts[3]; - } - } - - if (urlParts[3]) { - directories = urlParts[3].replace(/\\/g, "/").split("/"); - - // extract out . before .. so .. doesn't absorb a non-directory - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".") { - directories.splice(i, 1); - i -= 1; - } - } - - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".." && i > 0) { - directories.splice(i-1, 2); - i -= 2; - } - } - } - - returner.hostPart = urlParts[1]; - returner.directories = directories; - returner.path = urlParts[1] + directories.join("/"); - returner.fileUrl = returner.path + (urlParts[4] || ""); - returner.url = returner.fileUrl + (urlParts[5] || ""); - return returner; -} - -function pathDiff(url, baseUrl) { - // diff between two paths to create a relative path - - var urlParts = extractUrlParts(url), - baseUrlParts = extractUrlParts(baseUrl), - i, max, urlDirectories, baseUrlDirectories, diff = ""; - if (urlParts.hostPart !== baseUrlParts.hostPart) { - return ""; - } - max = Math.max(baseUrlParts.directories.length, urlParts.directories.length); - for(i = 0; i < max; i++) { - if (baseUrlParts.directories[i] !== urlParts.directories[i]) { break; } - } - baseUrlDirectories = baseUrlParts.directories.slice(i); - urlDirectories = urlParts.directories.slice(i); - for(i = 0; i < baseUrlDirectories.length-1; i++) { - diff += "../"; - } - for(i = 0; i < urlDirectories.length-1; i++) { - diff += urlDirectories[i] + "/"; - } - return diff; -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest) { - return new XMLHttpRequest(); - } else { - try { - /*global ActiveXObject */ - return new ActiveXObject("MSXML2.XMLHTTP.3.0"); 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The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - - // Specialization of $(tok) - function $re(tok) { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - var m = tok.exec(current); - if (!m) { - return null; - } - - skipWhitespace(m[0].length); - if(typeof m === "string") { - return m; - } - - return m.length === 1 ? m[0] : m; - } - - var _$re = $re; - - // Specialization of $(tok) - function $char(tok) { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - curr = i - currentPos, - endIndex = i + current.length - curr, - mem = (i += length), - inp = input, - c; - - for (; i < endIndex; i++) { - c = inp.charCodeAt(i); - if (c > 32) { - break; - } - - if ((c !== 32) && (c !== 10) && (c !== 9) && (c !== 13)) { - break; - } - } - - current = current.slice(length + i - mem + curr); - currentPos = i; - - if (!current.length && (j < chunks.length - 1)) { - current = chunks[++j]; - skipWhitespace(0); // skip space at the beginning of a chunk - return true; // things changed - } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - // some older browsers return typeof 'function' for RegExp - var result = (Object.prototype.toString.call(arg) === '[object Function]') ? arg.call(parsers) : $(arg); - if (result) { - return result; - } - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } - - // Specialization of expect() - function expectChar(arg, msg) { - if (input.charAt(i) === arg) { - skipWhitespace(1); - return arg; - } - error(msg || "expected '" + arg + "' got '" + input.charAt(i) + "'"); - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - return tok.test(current); - } - } - - // Specialization of peek() - function peekChar(tok) { - return input.charAt(i) === tok; - } - - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, inputStream) { - var n = index + 1, - line = null, - column = -1; - - while (--n >= 0 && inputStream.charAt(n) !== '\n') { - column++; - } - - if (typeof index === 'number') { - line = (inputStream.slice(0, index).match(/\n/g) || "").length; - } - - return { - line: line, - column: column - }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - callLine = e.call && getLocation(e.call, input).line, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = callLine + 1; - this.callExtract = lines[callLine]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // @param str A string containing 'less' markup - // @param callback call `callback` when done. - // @param [additionalData] An optional map which can contains vars - a map (key, value) of variables to apply - // - parse: function (str, callback, additionalData) { - var root, line, lines, error = null, globalVars, modifyVars, preText = ""; - - i = j = currentPos = furthest = 0; - - globalVars = (additionalData && additionalData.globalVars) ? less.Parser.serializeVars(additionalData.globalVars) + '\n' : ''; - modifyVars = (additionalData && additionalData.modifyVars) ? '\n' + less.Parser.serializeVars(additionalData.modifyVars) : ''; - - if (globalVars || (additionalData && additionalData.banner)) { - preText = ((additionalData && additionalData.banner) ? additionalData.banner : "") + globalVars; - parser.imports.contentsIgnoredChars[env.currentFileInfo.filename] = preText.length; - } - - str = str.replace(/\r\n/g, '\n'); - // Remove potential UTF Byte Order Mark - input = str = preText + str.replace(/^\uFEFF/, '') + modifyVars; - parser.imports.contents[env.currentFileInfo.filename] = str; - - // Split the input into chunks. - chunks = (function (input) { - var len = input.length, level = 0, parenLevel = 0, - lastOpening, lastOpeningParen, lastMultiComment, lastMultiCommentEndBrace, - chunks = [], emitFrom = 0, - parserCurrentIndex, currentChunkStartIndex, cc, cc2, matched; - - function fail(msg, index) { - error = new(LessError)({ - index: index || parserCurrentIndex, - type: 'Parse', - message: msg, - filename: env.currentFileInfo.filename - }, env); - } - - function emitChunk(force) { - var len = parserCurrentIndex - emitFrom; - if (((len < 512) && !force) || !len) { - return; - } - chunks.push(input.slice(emitFrom, parserCurrentIndex + 1)); - emitFrom = parserCurrentIndex + 1; - } - - for (parserCurrentIndex = 0; parserCurrentIndex < len; parserCurrentIndex++) { - cc = input.charCodeAt(parserCurrentIndex); - if (((cc >= 97) && (cc <= 122)) || (cc < 34)) { - // a-z or whitespace - continue; - } - - switch (cc) { - case 40: // ( - parenLevel++; - lastOpeningParen = parserCurrentIndex; - continue; - case 41: // ) - if (--parenLevel < 0) { - return fail("missing opening `(`"); - } - continue; - case 59: // ; - if (!parenLevel) { emitChunk(); } - continue; - case 123: // { - level++; - lastOpening = parserCurrentIndex; - continue; - case 125: // } - if (--level < 0) { - return fail("missing opening `{`"); - } - if (!level && !parenLevel) { emitChunk(); } - continue; - case 92: // \ - if (parserCurrentIndex < len - 1) { parserCurrentIndex++; continue; } - return fail("unescaped `\\`"); - case 34: - case 39: - case 96: // ", ' and ` - matched = 0; - currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 1; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 > 96) { continue; } - if (cc2 == cc) { matched = 1; break; } - if (cc2 == 92) { // \ - if (parserCurrentIndex == len - 1) { - return fail("unescaped `\\`"); - } - parserCurrentIndex++; - } - } - if (matched) { continue; } - return fail("unmatched `" + String.fromCharCode(cc) + "`", currentChunkStartIndex); - case 47: // /, check for comment - if (parenLevel || (parserCurrentIndex == len - 1)) { continue; } - cc2 = input.charCodeAt(parserCurrentIndex + 1); - if (cc2 == 47) { - // //, find lnfeed - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if ((cc2 <= 13) && ((cc2 == 10) || (cc2 == 13))) { break; } - } - } else if (cc2 == 42) { - // /*, find */ - lastMultiComment = currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len - 1; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 == 125) { lastMultiCommentEndBrace = parserCurrentIndex; } - if (cc2 != 42) { continue; } - if (input.charCodeAt(parserCurrentIndex + 1) == 47) { break; } - } - if (parserCurrentIndex == len - 1) { - return fail("missing closing `*/`", currentChunkStartIndex); - } - parserCurrentIndex++; - } - continue; - case 42: // *, check for unmatched */ - if ((parserCurrentIndex < len - 1) && (input.charCodeAt(parserCurrentIndex + 1) == 47)) { - return fail("unmatched `/*`"); - } - continue; - } - } - - if (level !== 0) { - if ((lastMultiComment > lastOpening) && (lastMultiCommentEndBrace > lastMultiComment)) { - return fail("missing closing `}` or `*/`", lastOpening); - } else { - return fail("missing closing `}`", lastOpening); - } - } else if (parenLevel !== 0) { - return fail("missing closing `)`", lastOpeningParen); - } - - emitChunk(true); - return chunks; - })(str); - - if (error) { - return callback(new(LessError)(error, env)); - } - - current = chunks[0]; - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)(null, this.parsers.primary()); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - return function (options, variables) { - options = options || {}; - var evaldRoot, - css, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, null, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var preEvalVisitors = [], - visitors = [ - new(tree.joinSelectorVisitor)(), - new(tree.processExtendsVisitor)(), - new(tree.toCSSVisitor)({compress: Boolean(options.compress)}) - ], i, root = this; - - if (options.plugins) { - for(i =0; i < options.plugins.length; i++) { - if (options.plugins[i].isPreEvalVisitor) { - preEvalVisitors.push(options.plugins[i]); - } else { - if (options.plugins[i].isPreVisitor) { - visitors.splice(0, 0, options.plugins[i]); - } else { - visitors.push(options.plugins[i]); - } - } - } - } - - for(i = 0; i < preEvalVisitors.length; i++) { - preEvalVisitors[i].run(root); - } - - evaldRoot = evaluate.call(root, evalEnv); - - for(i = 0; i < visitors.length; i++) { - visitors[i].run(evaldRoot); - } - - if (options.sourceMap) { - evaldRoot = new tree.sourceMapOutput( - { - contentsIgnoredCharsMap: parser.imports.contentsIgnoredChars, - writeSourceMap: options.writeSourceMap, - rootNode: evaldRoot, - contentsMap: parser.imports.contents, - sourceMapFilename: options.sourceMapFilename, - sourceMapURL: options.sourceMapURL, - outputFilename: options.sourceMapOutputFilename, - sourceMapBasepath: options.sourceMapBasepath, - sourceMapRootpath: options.sourceMapRootpath, - outputSourceFiles: options.outputSourceFiles, - sourceMapGenerator: options.sourceMapGenerator - }); - } - - css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits), - numPrecision: 8}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.cleancss && less.mode === 'node') { - var CleanCSS = require('clean-css'), - cleancssOptions = options.cleancssOptions || {}; - - if (cleancssOptions.keepSpecialComments === undefined) { - cleancssOptions.keepSpecialComments = "*"; - } - cleancssOptions.processImport = false; - cleancssOptions.noRebase = true; - if (cleancssOptions.noAdvanced === undefined) { - cleancssOptions.noAdvanced = true; - } - - return new CleanCSS(cleancssOptions).minify(css); - } else if (options.compress) { - return css.replace(/(^(\s)+)|((\s)+$)/g, ""); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - var loc = getLocation(i, input); - lines = input.split('\n'); - line = loc.line + 1; - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: loc.column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - return callback(e); - } - else { - return callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - return finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: parsers = { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var mixin = this.mixin, $re = _$re, root = [], node; - - while (current) - { - node = this.extendRule() || mixin.definition() || this.rule() || this.ruleset() || - mixin.call() || this.comment() || this.rulesetCall() || this.directive(); - if (node) { - root.push(node); - } else { - if (!($re(/^[\s\n]+/) || $re(/^;+/))) { - break; - } - } - if (peekChar('}')) { - break; - } - } - - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') { return; } - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($re(/^\/\/.*/), true, i, env.currentFileInfo); - } - comment = $re(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/); - if (comment) { - return new(tree.Comment)(comment, false, i, env.currentFileInfo); - } - }, - - comments: function () { - var comment, comments = []; - - while(true) { - comment = this.comment(); - if (!comment) { - break; - } - comments.push(comment); - } - - return comments; - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; } - - if (e) { $char('~'); } - - str = $re(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/); - if (str) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - k = $re(/^%|^[_A-Za-z-][_A-Za-z0-9-]*/); - if (k) { - var color = tree.Color.fromKeyword(k); - if (color) { - return color; - } - return new(tree.Keyword)(k); - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(current); - if (!name) { return; } - - name = name[1]; - nameLC = name.toLowerCase(); - if (nameLC === 'url') { - return null; - } - - i += name.length; - - if (nameLC === 'alpha') { - alpha_ret = parsers.alpha(); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $char('('); // Parse the '(' and consume whitespace. - - args = this.arguments(); - - if (! $char(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (true) { - arg = this.assignment() || parsers.expression(); - if (!arg) { - break; - } - args.push(arg); - if (! $char(',')) { - break; - } - } - return args; - }, - literal: function () { - return this.dimension() || - this.color() || - this.quoted() || - this.unicodeDescriptor(); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - key = $re(/^\w+(?=\s?=)/i); - if (!key) { - return; - } - if (!$char('=')) { - return; - } - value = parsers.entity(); - if (value) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$re(/^url\(/)) { - return; - } - - value = this.quoted() || this.variable() || - $re(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expectChar(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $re(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var curly, index = i; - - if (input.charAt(i) === '@' && (curly = $re(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $re(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) { - return; - } - - value = $re(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/); - if (value) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - ud = $re(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/); - if (ud) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '`') { return; } - if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) { - error("You are using JavaScript, which has been disabled."); - } - - if (e) { $char('~'); } - - str = $re(/^`([^`]*)`/); - if (str) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*:/))) { return name[1]; } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink(); - // - rulesetCall: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*\(\s*\)\s*;/))) { - return new tree.RulesetCall(name[1]); - } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList, extend; - - if (!(isRule ? $re(/^&:extend\(/) : $re(/^:extend\(/))) { return; } - - do { - option = null; - elements = null; - while (! (option = $re(/^(all)(?=\s*(\)|,))/))) { - e = this.element(); - if (!e) { break; } - if (elements) { elements.push(e); } else { elements = [ e ]; } - } - - option = option && option[1]; - - extend = new(tree.Extend)(new(tree.Selector)(elements), option, index); - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - - } while($char(",")); - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var s = input.charAt(i), important = false, index = i, elemIndex, - elements, elem, e, c, args; - - if (s !== '.' && s !== '#') { return; } - - save(); // stop us absorbing part of an invalid selector - - while (true) { - elemIndex = i; - e = $re(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/); - if (!e) { - break; - } - elem = new(tree.Element)(c, e, elemIndex, env.currentFileInfo); - if (elements) { elements.push(elem); } else { elements = [ elem ]; } - c = $char('>'); - } - - if (elements) { - if ($char('(')) { - args = this.args(true).args; - expectChar(')'); - } - - if (parsers.important()) { - important = true; - } - - if (parsers.end()) { - forget(); - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - } - - restore(); - }, - args: function (isCall) { - var parsers = parser.parsers, entities = parsers.entities, - returner = { args:null, variadic: false }, - expressions = [], argsSemiColon = [], argsComma = [], - isSemiColonSeperated, expressionContainsNamed, name, nameLoop, value, arg; - - save(); - - while (true) { - if (isCall) { - arg = parsers.detachedRuleset() || parsers.expression(); - } else { - parsers.comments(); - if (input.charAt(i) === '.' && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = entities.variable() || entities.literal() || entities.keyword(); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value && arg.value.length == 1) { - val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($char(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - - // we do not support setting a ruleset as a default variable - it doesn't make sense - // However if we do want to add it, there is nothing blocking it, just don't error - // and remove isCall dependency below - value = (isCall && parsers.detachedRuleset()) || parsers.expression(); - - if (!value) { - if (isCall) { - error("could not understand value for named argument"); - } else { - restore(); - returner.args = []; - return returner; - } - } - nameLoop = (name = val.name); - } else if (!isCall && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($char(',')) { - continue; - } - - if ($char(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - forget(); - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) { - return; - } - - save(); - - match = $re(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/); - if (match) { - name = match[1]; - - var argInfo = this.args(false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. - // also - // .mixincall(@a: {rule: set;}); - // so we have to be nice and restore - if (!$char(')')) { - furthest = i; - restore(); - return; - } - - parsers.comments(); - - if ($re(/^when/)) { // Guard - cond = expect(parsers.conditions, 'expected condition'); - } - - ruleset = parsers.block(); - - if (ruleset) { - forget(); - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } else { - forget(); - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - var entities = this.entities; - - return entities.literal() || entities.variable() || entities.url() || - entities.call() || entities.keyword() || entities.javascript() || - this.comment(); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $char(';') || peekChar('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $re(/^\(opacity=/i)) { return; } - value = $re(/^\d+/) || this.entities.variable(); - if (value) { - expectChar(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, c, v, index = i; - - c = this.combinator(); - - e = $re(/^(?:\d+\.\d+|\d+)%/) || $re(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $char('*') || $char('&') || this.attribute() || $re(/^\([^()@]+\)/) || $re(/^[\.#](?=@)/) || - this.entities.variableCurly(); - - if (! e) { - save(); - if ($char('(')) { - if ((v = this.selector()) && $char(')')) { - e = new(tree.Paren)(v); - forget(); - } else { - restore(); - } - } else { - forget(); - } - } - - if (e) { return new(tree.Element)(c, e, index, env.currentFileInfo); } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|' || c === '^') { - i++; - if (input.charAt(i) === '^') { - c = '^^'; - i++; - } - while (isWhitespace(input, i)) { i++; } - return new(tree.Combinator)(c); - } else if (isWhitespace(input, i - 1)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - // - // A CSS selector (see selector below) - // with less extensions e.g. the ability to extend and guard - // - lessSelector: function () { - return this.selector(true); - }, - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function (isLess) { - var index = i, $re = _$re, elements, extendList, c, e, extend, when, condition; - - while ((isLess && (extend = this.extend())) || (isLess && (when = $re(/^when/))) || (e = this.element())) { - if (when) { - condition = expect(this.conditions, 'expected condition'); - } else if (condition) { - error("CSS guard can only be used at the end of selector"); - } else if (extend) { - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - } else { - if (extendList) { error("Extend can only be used at the end of selector"); } - c = input.charAt(i); - if (elements) { elements.push(e); } else { elements = [ e ]; } - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { - break; - } - } - - if (elements) { return new(tree.Selector)(elements, extendList, condition, index, env.currentFileInfo); } - if (extendList) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - if (! $char('[')) { return; } - - var entities = this.entities, - key, val, op; - - if (!(key = entities.variableCurly())) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - op = $re(/^[|~*$^]?=/); - if (op) { - val = entities.quoted() || $re(/^[0-9]+%/) || $re(/^[\w-]+/) || entities.variableCurly(); - } - - expectChar(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($char('{') && (content = this.primary()) && $char('}')) { - return content; - } - }, - - blockRuleset: function() { - var block = this.block(); - - if (block) { - block = new tree.Ruleset(null, block); - } - return block; - }, - - detachedRuleset: function() { - var blockRuleset = this.blockRuleset(); - if (blockRuleset) { - return new tree.DetachedRuleset(blockRuleset); - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors, s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - while (true) { - s = this.lessSelector(); - if (!s) { - break; - } - if (selectors) { selectors.push(s); } else { selectors = [ s ]; } - this.comments(); - if (s.condition && selectors.length > 1) { - error("Guards are only currently allowed on a single selector."); - } - if (! $char(',')) { break; } - if (s.condition) { - error("Guards are only currently allowed on a single selector."); - } - this.comments(); - } - - if (selectors && (rules = this.block())) { - forget(); - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) { - ruleset.debugInfo = debugInfo; - } - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, startOfRule = i, c = input.charAt(startOfRule), important, merge, isVariable; - - if (c === '.' || c === '#' || c === '&') { return; } - - save(); - - name = this.variable() || this.ruleProperty(); - if (name) { - isVariable = typeof name === "string"; - - if (isVariable) { - value = this.detachedRuleset(); - } - - if (!value) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || isVariable) ? - (this.value() || this.anonymousValue()) : - (this.anonymousValue() || this.value()); - - important = this.important(); - - // a name returned by this.ruleProperty() is always an array of the form: - // [string-1, ..., string-n, ""] or [string-1, ..., string-n, "+"] - // where each item is a tree.Keyword or tree.Variable - merge = !isVariable && name.pop().value; - } - - if (value && this.end()) { - forget(); - return new (tree.Rule)(name, value, important, merge, startOfRule, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } else { - forget(); - } - }, - anonymousValue: function () { - var match; - match = /^([^@+\/'"*`(;{}-]*);/.exec(current); - if (match) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $re(/^@import?\s+/); - - var options = (dir ? this.importOptions() : null) || {}; - - if (dir && (path = this.entities.quoted() || this.entities.url())) { - features = this.mediaFeatures(); - if ($char(';')) { - forget(); - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $char('(')) { return null; } - do { - o = this.importOption(); - if (o) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $char(',')) { break; } - } - } while (o); - expectChar(')'); - return options; - }, - - importOption: function() { - var opt = $re(/^(less|css|multiple|once|inline|reference)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var entities = this.entities, nodes = [], e, p; - do { - e = entities.keyword() || entities.variable(); - if (e) { - nodes.push(e); - } else if ($char('(')) { - p = this.property(); - e = this.value(); - if ($char(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null; } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var entities = this.entities, features = [], e; - do { - e = this.mediaFeature(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } else { - e = entities.variable(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - if ($re(/^@media/)) { - features = this.mediaFeatures(); - - rules = this.block(); - if (rules) { - media = new(tree.Media)(rules, features, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - media.debugInfo = debugInfo; - } - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var index = i, name, value, rules, nonVendorSpecificName, - hasIdentifier, hasExpression, hasUnknown, hasBlock = true; - - if (input.charAt(i) !== '@') { return; } - - value = this['import']() || this.media(); - if (value) { - return value; - } - - save(); - - name = $re(/^@[a-z-]+/); - - if (!name) { return; } - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - /* - case "@font-face": - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - */ - case "@charset": - hasIdentifier = true; - hasBlock = false; - break; - case "@namespace": - hasExpression = true; - hasBlock = false; - break; - case "@keyframes": - hasIdentifier = true; - break; - case "@host": - case "@page": - case "@document": - case "@supports": - hasUnknown = true; - break; - } - - if (hasIdentifier) { - value = this.entity(); - if (!value) { - error("expected " + name + " identifier"); - } - } else if (hasExpression) { - value = this.expression(); - if (!value) { - error("expected " + name + " expression"); - } - } else if (hasUnknown) { - value = ($re(/^[^{;]+/) || '').trim(); - if (value) { - value = new(tree.Anonymous)(value); - } - } - - if (hasBlock) { - rules = this.blockRuleset(); - } - - if (rules || (!hasBlock && value && $char(';'))) { - forget(); - return new(tree.Directive)(name, value, rules, index, env.currentFileInfo, - env.dumpLineNumbers ? getDebugInfo(index, input, env) : null); - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = []; - - do { - e = this.expression(); - if (e) { - expressions.push(e); - if (! $char(',')) { break; } - } - } while(e); - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $re(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($char('(')) { - a = this.addition(); - if (a) { - e = new(tree.Expression)([a]); - expectChar(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced; - m = this.operand(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - if (peek(/^\/[*\/]/)) { - break; - } - op = $char('/') || $char('*'); - - if (!op) { break; } - - a = this.operand(); - - if (!a) { break; } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - m = this.multiplication(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - op = $re(/^[-+]\s+/) || (!isSpaced && ($char('+') || $char('-'))); - if (!op) { - break; - } - a = this.multiplication(); - if (!a) { - break; - } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - a = this.condition(); - if (a) { - while (true) { - if (!peek(/^,\s*(not\s*)?\(/) || !$char(',')) { - break; - } - b = this.condition(); - if (!b) { - break; - } - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var entities = this.entities, index = i, negate = false, - a, b, c, op; - - if ($re(/^not/)) { negate = true; } - expectChar('('); - a = this.addition() || entities.keyword() || entities.quoted(); - if (a) { - op = $re(/^(?:>=|<=|=<|[<=>])/); - if (op) { - b = this.addition() || entities.keyword() || entities.quoted(); - if (b) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expectChar(')'); - return $re(/^and/) ? new(tree.Condition)('and', c, this.condition()) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var entities = this.entities, - p = input.charAt(i + 1), negate; - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $char('-'); } - var o = this.sub() || entities.dimension() || - entities.color() || entities.variable() || - entities.call(); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var entities = [], e, delim; - - do { - e = this.addition() || this.entity(); - if (e) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/)) { - delim = $char('/'); - if (delim) { - entities.push(new(tree.Anonymous)(delim)); - } - } - } - } while (e); - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name = $re(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/); - if (name) { - return name[1]; - } - }, - ruleProperty: function () { - var c = current, name = [], index = [], length = 0, s, k; - - function match(re) { - var a = re.exec(c); - if (a) { - index.push(i + length); - length += a[0].length; - c = c.slice(a[1].length); - return name.push(a[1]); - } - } - - match(/^(\*?)/); - while (match(/^((?:[\w-]+)|(?:@\{[\w-]+\}))/)); // ! - if ((name.length > 1) && match(/^\s*((?:\+_|\+)?)\s*:/)) { - // at last, we have the complete match now. move forward, - // convert name particles to tree objects and return: - skipWhitespace(length); - if (name[0] === '') { - name.shift(); - index.shift(); - } - for (k = 0; k < name.length; k++) { - s = name[k]; - name[k] = (s.charAt(0) !== '@') - ? new(tree.Keyword)(s) - : new(tree.Variable)('@' + s.slice(2, -1), - index[k], env.currentFileInfo); - } - return name; - } - } - } - }; - return parser; -}; -less.Parser.serializeVars = function(vars) { - var s = ''; - - for (var name in vars) { - if (Object.hasOwnProperty.call(vars, name)) { - var value = vars[name]; - s += ((name[0] === '@') ? '' : '@') + name +': '+ value + - ((('' + value).slice(-1) === ';') ? '' : ';'); - } - } - - return s; -}; - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 255); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; } - else if (h * 2 < 1) { return m2; } - else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; } - else { return m1; } - } - - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - luminance: function (color) { - var luminance = - (0.2126 * color.rgb[0] / 255) - + (0.7152 * color.rgb[1] / 255) - + (0.0722 * color.rgb[2] / 255); - - return new(tree.Dimension)(Math.round(luminance * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - // filter: saturate(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if (color.luma() < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - replace: function (string, pattern, replacement, flags) { - var result = string.value; - - result = result.replace(new RegExp(pattern.value, flags ? flags.value : ''), replacement.value); - return new(tree.Quoted)(string.quote || '', result, string.escaped); - }, - '%': function (string /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - result = string.value; - - for (var i = 0; i < args.length; i++) { - /*jshint loopfunc:true */ - result = result.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - result = result.replace(/%%/g, '%'); - return new(tree.Quoted)(string.quote || '', result, string.escaped); - }, - unit: function (val, unit) { - if(!(val instanceof tree.Dimension)) { - throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") }; - } - if (unit) { - if (unit instanceof tree.Keyword) { - unit = unit.value; - } else { - unit = unit.toCSS(); - } - } else { - unit = ""; - } - return new(tree.Dimension)(val.value, unit); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return _math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _minmax: function (isMin, args) { - args = Array.prototype.slice.call(args); - switch(args.length) { - case 0: throw { type: "Argument", message: "one or more arguments required" }; - } - var i, j, current, currentUnified, referenceUnified, unit, unitStatic, unitClone, - order = [], // elems only contains original argument values. - values = {}; // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - for (i = 0; i < args.length; i++) { - current = args[i]; - if (!(current instanceof tree.Dimension)) { - if(Array.isArray(args[i].value)) { - Array.prototype.push.apply(args, Array.prototype.slice.call(args[i].value)); - } - continue; - } - currentUnified = current.unit.toString() === "" && unitClone !== undefined ? new(tree.Dimension)(current.value, unitClone).unify() : current.unify(); - unit = currentUnified.unit.toString() === "" && unitStatic !== undefined ? unitStatic : currentUnified.unit.toString(); - unitStatic = unit !== "" && unitStatic === undefined || unit !== "" && order[0].unify().unit.toString() === "" ? unit : unitStatic; - unitClone = unit !== "" && unitClone === undefined ? current.unit.toString() : unitClone; - j = values[""] !== undefined && unit !== "" && unit === unitStatic ? values[""] : values[unit]; - if (j === undefined) { - if(unitStatic !== undefined && unit !== unitStatic) { - throw{ type: "Argument", message: "incompatible types" }; - } - values[unit] = order.length; - order.push(current); - continue; - } - referenceUnified = order[j].unit.toString() === "" && unitClone !== undefined ? new(tree.Dimension)(order[j].value, unitClone).unify() : order[j].unify(); - if ( isMin && currentUnified.value < referenceUnified.value || - !isMin && currentUnified.value > referenceUnified.value) { - order[j] = current; - } - } - if (order.length == 1) { - return order[0]; - } - args = order.map(function (a) { return a.toCSS(this.env); }).join(this.env.compress ? "," : ", "); - return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")"); - }, - min: function () { - return this._minmax(true, arguments); - }, - max: function () { - return this._minmax(false, arguments); - }, - "get-unit": function (n) { - return new(tree.Anonymous)(n.unit); - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - var colorCandidate = n.value, - returnColor; - returnColor = tree.Color.fromKeyword(colorCandidate); - if (returnColor) { - return returnColor; - } - if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) { - return new(tree.Color)(colorCandidate.slice(1)); - } - throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" }; - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - return Array.isArray(values.value) - ? values.value[index] : Array(values)[index]; - }, - length: function(values) { - var n = Array.isArray(values.value) ? values.value.length : 1; - return new tree.Dimension(n); - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require('fs'), - path = require('path'), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) { mimetype += ';base64'; } - } - else { - useBase64 = /;base64$/.test(mimetype); - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "\"data:" + mimetype + ',' + buf + "\""; - return new(tree.URL)(new(tree.Anonymous)(uri)); - }, - - "svg-gradient": function(direction) { - - function throwArgumentDescriptor() { - throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" }; - } - - if (arguments.length < 3) { - throwArgumentDescriptor(); - } - var stops = Array.prototype.slice.call(arguments, 1), - gradientDirectionSvg, - gradientType = "linear", - rectangleDimension = 'x="0" y="0" width="1" height="1"', - useBase64 = true, - renderEnv = {compress: false}, - returner, - directionValue = direction.toCSS(renderEnv), - i, color, position, positionValue, alpha; - - switch (directionValue) { - case "to bottom": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - gradientType = "radial"; - gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" }; - } - returner = '' + - '' + - '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>'; - - for (i = 0; i < stops.length; i+= 1) { - if (stops[i].value) { - color = stops[i].value[0]; - position = stops[i].value[1]; - } else { - color = stops[i]; - position = undefined; - } - - if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) { - throwArgumentDescriptor(); - } - positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%"; - alpha = color.alpha; - returner += ''; - } - returner += '' + - ''; - - if (useBase64) { - try { - returner = require('./encoder').encodeBase64(returner); // TODO browser implementation - } catch(e) { - useBase64 = false; - } - } - - returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'"; - return new(tree.URL)(new(tree.Anonymous)(returner)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -// Math - -var mathFunctions = { - // name, unit - ceil: null, - floor: null, - sqrt: null, - abs: null, - tan: "", - sin: "", - cos: "", - atan: "rad", - asin: "rad", - acos: "rad" -}; - -function _math(fn, unit, n) { - if (!(n instanceof tree.Dimension)) { - throw { type: "Argument", message: "argument must be a number" }; - } - if (unit == null) { - unit = n.unit; - } else { - n = n.unify(); - } - return new(tree.Dimension)(fn(parseFloat(n.value)), unit); -} - -// ~ End of Math - -// Color Blending -// ref: http://www.w3.org/TR/compositing-1 - -function colorBlend(mode, color1, color2) { - var ab = color1.alpha, cb, // backdrop - as = color2.alpha, cs, // source - ar, cr, r = []; // result - - ar = as + ab * (1 - as); - for (var i = 0; i < 3; i++) { - cb = color1.rgb[i] / 255; - cs = color2.rgb[i] / 255; - cr = mode(cb, cs); - if (ar) { - cr = (as * cs + ab * (cb - - as * (cb + cs - cr))) / ar; - } - r[i] = cr * 255; - } - - return new(tree.Color)(r, ar); -} - -var colorBlendMode = { - multiply: function(cb, cs) { - return cb * cs; - }, - screen: function(cb, cs) { - return cb + cs - cb * cs; - }, - overlay: function(cb, cs) { - cb *= 2; - return (cb <= 1) - ? colorBlendMode.multiply(cb, cs) - : colorBlendMode.screen(cb - 1, cs); - }, - softlight: function(cb, cs) { - var d = 1, e = cb; - if (cs > 0.5) { - e = 1; - d = (cb > 0.25) ? Math.sqrt(cb) - : ((16 * cb - 12) * cb + 4) * cb; - } - return cb - (1 - 2 * cs) * e * (d - cb); - }, - hardlight: function(cb, cs) { - return colorBlendMode.overlay(cs, cb); - }, - difference: function(cb, cs) { - return Math.abs(cb - cs); - }, - exclusion: function(cb, cs) { - return cb + cs - 2 * cb * cs; - }, - - // non-w3c functions: - average: function(cb, cs) { - return (cb + cs) / 2; - }, - negation: function(cb, cs) { - return 1 - Math.abs(cb + cs - 1); - } -}; - -// ~ End of Color Blending - -tree.defaultFunc = { - eval: function () { - var v = this.value_, e = this.error_; - if (e) { - throw e; - } - if (v != null) { - return v ? tree.True : tree.False; - } - }, - value: function (v) { - this.value_ = v; - }, - error: function (e) { - this.error_ = e; - }, - reset: function () { - this.value_ = this.error_ = null; - } -}; - -function initFunctions() { - var f, tf = tree.functions; - - // math - for (f in mathFunctions) { - if (mathFunctions.hasOwnProperty(f)) { - tf[f] = _math.bind(null, Math[f], mathFunctions[f]); - } - } - - // color blending - for (f in colorBlendMode) { - if (colorBlendMode.hasOwnProperty(f)) { - tf[f] = colorBlend.bind(null, colorBlendMode[f]); - } - } - - // default - f = tree.defaultFunc; - tf["default"] = f.eval.bind(f); - -} initFunctions(); - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.fround = function(env, value) { - var p; - if (env && (env.numPrecision != null)) { - p = Math.pow(10, env.numPrecision); - return Math.round(value * p) / p; - } else { - return value; - } -}; - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); - -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); - -(function (tree) { - -tree.debugInfo = function(env, ctx, lineSeperator) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:\/\\])/g, function (a) { - if (a == '\\') { - a = '\/'; - } - return '\\' + a; - }) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - r = fun.call(obj, obj[i]); - if (r) { return r; } - } - return null; -}; - -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false); }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -tree.toCSS = function (env) { - var strs = []; - this.genCSS(env, { - add: function(chunk, fileInfo, index) { - strs.push(chunk); - }, - isEmpty: function () { - return strs.length === 0; - } - }); - return strs.join(''); -}; - -tree.outputRuleset = function (env, output, rules) { - var ruleCnt = rules.length, i; - env.tabLevel = (env.tabLevel | 0) + 1; - - // Compressed - if (env.compress) { - output.add('{'); - for (i = 0; i < ruleCnt; i++) { - rules[i].genCSS(env, output); - } - output.add('}'); - env.tabLevel--; - return; - } - - // Non-compressed - var tabSetStr = '\n' + Array(env.tabLevel).join(" "), tabRuleStr = tabSetStr + " "; - if (!ruleCnt) { - output.add(" {" + tabSetStr + '}'); - } else { - output.add(" {" + tabRuleStr); - rules[0].genCSS(env, output); - for (i = 1; i < ruleCnt; i++) { - output.add(tabRuleStr); - rules[i].genCSS(env, output); - } - output.add(tabSetStr + '}'); - } - - env.tabLevel--; -}; - -})(require('./tree')); - -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } - return this; - }, - genCSS: function (env, output) { - output.add("alpha(opacity="); - - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - - output.add(")"); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Anonymous = function (string, index, currentFileInfo, mapLines) { - this.value = string.value || string; - this.index = index; - this.mapLines = mapLines; - this.currentFileInfo = currentFileInfo; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - eval: function () { - return new tree.Anonymous(this.value, this.index, this.currentFileInfo, this.mapLines); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - }, - genCSS: function (env, output) { - output.add(this.value, this.currentFileInfo, this.index, this.mapLines); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - }, - genCSS: function (env, output) { - output.add(this.key + '='); - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - if (this.args) { - this.args = visitor.visitArray(this.args); - } - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - return new tree.Call(this.name, args, this.index, this.currentFileInfo); - }, - - genCSS: function (env, output) { - output.add(this.name + "(", this.currentFileInfo, this.index); - - for(var i = 0; i < this.args.length; i++) { - this.args[i].genCSS(env, output); - if (i + 1 < this.args.length) { - output.add(", "); - } - } - - output.add(")"); - }, - - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; - -var transparentKeyword = "transparent"; - -tree.Color.prototype = { - type: "Color", - eval: function () { return this; }, - luma: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255; - - r = (r <= 0.03928) ? r / 12.92 : Math.pow(((r + 0.055) / 1.055), 2.4); - g = (g <= 0.03928) ? g / 12.92 : Math.pow(((g + 0.055) / 1.055), 2.4); - b = (b <= 0.03928) ? b / 12.92 : Math.pow(((b + 0.055) / 1.055), 2.4); - - return 0.2126 * r + 0.7152 * g + 0.0722 * b; - }, - - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress, - alpha = tree.fround(env, this.alpha); - - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - if (alpha < 1) { - if (alpha === 0 && this.isTransparentKeyword) { - return transparentKeyword; - } - return "rgba(" + this.rgb.map(function (c) { - return clamp(Math.round(c), 255); - }).concat(clamp(alpha, 1)) - .join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.toRGB(); - - if (compress) { - var splitcolor = color.split(''); - - // Convert color to short format - if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) { - color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5]; - } - } - - return color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var rgb = []; - var alpha = this.alpha * (1 - other.alpha) + other.alpha; - for (var c = 0; c < 3; c++) { - rgb[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(rgb, alpha); - }, - - toRGB: function () { - return toHex(this.rgb); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - return toHex([this.alpha * 255].concat(this.rgb)); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - -tree.Color.fromKeyword = function(keyword) { - keyword = keyword.toLowerCase(); - - if (tree.colors.hasOwnProperty(keyword)) { - // detect named color - return new(tree.Color)(tree.colors[keyword].slice(1)); - } - if (keyword === transparentKeyword) { - var transparent = new(tree.Color)([0, 0, 0], 0); - transparent.isTransparentKeyword = true; - return transparent; - } -}; - -function toHex(v) { - return '#' + v.map(function (c) { - c = clamp(Math.round(c), 255); - return (c < 16 ? '0' : '') + c.toString(16); - }).join(''); -} - -function clamp(v, max) { - return Math.min(Math.max(v, 0), max); -} - -})(require('../tree')); - -(function (tree) { - -tree.Comment = function (value, silent, index, currentFileInfo) { - this.value = value; - this.silent = !!silent; - this.currentFileInfo = currentFileInfo; -}; -tree.Comment.prototype = { - type: "Comment", - genCSS: function (env, output) { - if (this.debugInfo) { - output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index); - } - output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n - }, - toCSS: tree.toCSS, - isSilent: function(env) { - var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced), - isCompressed = env.compress && !this.value.match(/^\/\*!/); - return this.silent || isReference || isCompressed; - }, - eval: function () { return this; }, - markReferenced: function () { - this.isReferenced = true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<' || op === '<='; - case 0: return op === '=' || op === '>=' || op === '=<' || op === '<='; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.DetachedRuleset = function (ruleset, frames) { - this.ruleset = ruleset; - this.frames = frames; -}; -tree.DetachedRuleset.prototype = { - type: "DetachedRuleset", - accept: function (visitor) { - this.ruleset = visitor.visit(this.ruleset); - }, - eval: function (env) { - var frames = this.frames || env.frames.slice(0); - return new tree.DetachedRuleset(this.ruleset, frames); - }, - callEval: function (env) { - return this.ruleset.eval(this.frames ? new(tree.evalEnv)(env, this.frames.concat(env.frames)) : env); - } -}; -})(require('../tree')); - -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - genCSS: function (env, output) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = tree.fround(env, this.value), - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && this.unit.isLength()) { - output.add(strValue); - return; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - output.add(strValue); - this.unit.genCSS(env, output); - }, - toCSS: tree.toCSS, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - /*jshint noempty:false */ - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a, b, - aValue, bValue; - - if (this.unit.isEmpty() || other.unit.isEmpty()) { - a = this; - b = other; - } else { - a = this.unify(); - b = other.unify(); - if (a.unit.compare(b.unit) !== 0) { - return -1; - } - } - aValue = a.value; - bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'px', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, targetUnit, derivedConversions = {}, applyUnit; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - applyUnit = function (atomicUnit, denominator) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(applyUnit); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'px': 0.0254 / 96, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - genCSS: function (env, output) { - if (this.numerator.length >= 1) { - output.add(this.numerator[0]); - } else - if (this.denominator.length >= 1) { - output.add(this.denominator[0]); - } else - if ((!env || !env.strictUnits) && this.backupUnit) { - output.add(this.backupUnit); - } - }, - toCSS: tree.toCSS, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isLength: function () { - return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/)); - }, - - isEmpty: function () { - return this.numerator.length === 0 && this.denominator.length === 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length === 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, result = {}, mapUnit; - - mapUnit = function (atomicUnit) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }; - - for (var groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(mapUnit); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Directive = function (name, value, rules, index, currentFileInfo, debugInfo) { - this.name = name; - this.value = value; - if (rules) { - this.rules = rules; - this.rules.allowImports = true; - } - this.index = index; - this.currentFileInfo = currentFileInfo; - this.debugInfo = debugInfo; -}; - -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - var value = this.value, rules = this.rules; - if (rules) { - rules = visitor.visit(rules); - } - if (value) { - value = visitor.visit(value); - } - }, - genCSS: function (env, output) { - var value = this.value, rules = this.rules; - output.add(this.name, this.currentFileInfo, this.index); - if (value) { - output.add(' '); - value.genCSS(env, output); - } - if (rules) { - tree.outputRuleset(env, output, [rules]); - } else { - output.add(';'); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var value = this.value, rules = this.rules; - if (value) { - value = value.eval(env); - } - if (rules) { - rules = rules.eval(env); - rules.root = true; - } - return new(tree.Directive)(this.name, value, rules, - this.index, this.currentFileInfo, this.debugInfo); - }, - variable: function (name) { if (this.rules) return tree.Ruleset.prototype.variable.call(this.rules, name); }, - find: function () { if (this.rules) return tree.Ruleset.prototype.find.apply(this.rules, arguments); }, - rulesets: function () { if (this.rules) return tree.Ruleset.prototype.rulesets.apply(this.rules); }, - markReferenced: function () { - var i, rules; - this.isReferenced = true; - if (this.rules) { - rules = this.rules.rules; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Element = function (combinator, value, index, currentFileInfo) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - var value = this.value; - this.combinator = visitor.visit(this.combinator); - if (typeof value === "object") { - this.value = visitor.visit(value); - } - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index, - this.currentFileInfo); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env), this.currentFileInfo, this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value === '' && this.combinator.value.charAt(0) === '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - _outputMap: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : ' + ', - '~' : ' ~ ', - '>' : ' > ', - '|' : '|', - '^' : ' ^ ', - '^^' : ' ^^ ' - }, - _outputMapCompressed: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : '+', - '~' : '~', - '>' : '>', - '|' : '|', - '^' : '^', - '^^' : '^^' - }, - genCSS: function (env, output) { - output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - genCSS: function (env, output) { - for(var i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i + 1 < this.value.length) { - output.add(" "); - } - } - }, - toCSS: tree.toCSS, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - this.object_id = tree.Extend.next_id++; - this.parent_ids = [this.object_id]; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; -tree.Extend.next_id = 0; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i, - selectorElements; - - for(i = 0; i < selectors.length; i++) { - selectorElements = selectors[i].elements; - // duplicate the logic in genCSS function inside the selector node. - // future TODO - move both logics into the selector joiner visitor - if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") { - selectorElements[0].combinator.value = ' '; - } - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); - -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined || this.options.inline) { - this.css = !this.options.less || this.options.inline; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - this.path = visitor.visit(this.path); - if (!this.options.inline && this.root) { - this.root = visitor.visit(this.root); - } - }, - genCSS: function (env, output) { - if (this.css) { - output.add("@import ", this.currentFileInfo, this.index); - this.path.genCSS(env, output); - if (this.features) { - output.add(" "); - this.features.genCSS(env, output); - } - output.add(';'); - } - }, - toCSS: tree.toCSS, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - - if (!(path instanceof tree.URL)) { - if (rootpath) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath +pathValue; - } - } - path.value = env.normalizePath(path.value); - } - - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { - if (typeof this.skip === "function") { - this.skip = this.skip(); - } - if (this.skip) { - return []; - } - } - - if (this.options.inline) { - //todo needs to reference css file not import - var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true); - return this.features ? new(tree.Media)([contents], this.features.value) : [contents]; - } else if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" , - index: this.index }; - } - - var variables = env.frames[0].variables(); - for (var k in variables) { - if (variables.hasOwnProperty(k)) { - /*jshint loopfunc:true */ - context[k.slice(1)] = { - value: variables[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message.replace(/["]/g, "'") + "'" , - index: this.index }; - } - if (typeof(result) === 'number') { - return new(tree.Dimension)(result); - } else if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Keyword = function (value) { this.value = value; }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - genCSS: function (env, output) { - if (this.value === '%') { throw { type: "Syntax", message: "Invalid % without number" }; } - output.add(this.value); - }, - toCSS: tree.toCSS, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); - -(function (tree) { - -tree.Media = function (value, features, index, currentFileInfo) { - this.index = index; - this.currentFileInfo = currentFileInfo; - - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.rules = [new(tree.Ruleset)(selectors, value)]; - this.rules[0].allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - }, - genCSS: function (env, output) { - output.add('@media ', this.currentFileInfo, this.index); - this.features.genCSS(env, output); - tree.outputRuleset(env, output, this.rules); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)(null, [], this.index, this.currentFileInfo); - if(this.debugInfo) { - this.rules[0].debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.rules[0]); - media.rules = [this.rules[0].eval(env)]; - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env); - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', this.index, this.currentFileInfo), - sels = [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)]; - sels[0].mediaEmpty = true; - return sels; - }, - markReferenced: function () { - var i, rules = this.rules[0].rules; - this.rules[0].markReferenced(); - this.isReferenced = true; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - if (!selectors) - return; - this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])]; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = (args && args.length) ? args : null; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - if (this.selector) { - this.selector = visitor.visit(this.selector); - } - if (this.arguments) { - this.arguments = visitor.visitArray(this.arguments); - } - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule, - candidates = [], candidate, conditionResult = [], defaultFunc = tree.defaultFunc, - defaultResult, defNone = 0, defTrue = 1, defFalse = 2, count; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - - // To make `default()` function independent of definition order we have two "subpasses" here. - // At first we evaluate each guard *twice* (with `default() == true` and `default() == false`), - // and build candidate list with corresponding flags. Then, when we know all possible matches, - // we make a final decision. - - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - - if (mixin.matchArgs(args, env)) { - candidate = {mixin: mixin, group: defNone}; - - if (mixin.matchCondition) { - for (f = 0; f < 2; f++) { - defaultFunc.value(f); - conditionResult[f] = mixin.matchCondition(args, env); - } - if (conditionResult[0] || conditionResult[1]) { - if (conditionResult[0] != conditionResult[1]) { - candidate.group = conditionResult[1] ? - defTrue : defFalse; - } - - candidates.push(candidate); - } - } - else { - candidates.push(candidate); - } - - match = true; - } - } - - defaultFunc.reset(); - - count = [0, 0, 0]; - for (m = 0; m < candidates.length; m++) { - count[candidates[m].group]++; - } - - if (count[defNone] > 0) { - defaultResult = defFalse; - } else { - defaultResult = defTrue; - if ((count[defTrue] + count[defFalse]) > 1) { - throw { type: 'Runtime', - message: 'Ambiguous use of `default()` found when matching for `' - + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - for (m = 0; m < candidates.length; m++) { - candidate = candidates[m].group; - if ((candidate === defNone) || (candidate === defaultResult)) { - try { - mixin = candidates[m].mixin; - if (!(mixin instanceof tree.mixin.Definition)) { - mixin = new tree.mixin.Definition("", [], mixin.rules, null, false); - mixin.originalRuleset = mixins[m].originalRuleset || mixins[m]; - } - Array.prototype.push.apply( - rules, mixin.evalCall(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - } - - if (match) { - if (!this.currentFileInfo || !this.currentFileInfo.reference) { - for (i = 0; i < rules.length; i++) { - rule = rules[i]; - if (rule.markReferenced) { - rule.markReferenced(); - } - } - } - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - }, - format: function (args) { - return this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")"; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic, frames) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1; } - else { return count; } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = frames; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - if (this.params && this.params.length) { - this.params = visitor.visitArray(this.params); - } - this.rules = visitor.visitArray(this.rules); - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - /*jshint boss:true */ - var frame = new(tree.Ruleset)(null, null), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex, argsLength = 0; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - argsLength = args.length; - - for(i = 0; i < argsLength; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.prependRule(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) { continue; } - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic) { - varargs = []; - for (j = argIndex; j < argsLength; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.prependRule(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + argsLength + ' for ' + this.arity + ')' }; - } - - frame.prependRule(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < argsLength; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env) { - return new tree.mixin.Definition(this.name, this.params, this.rules, this.condition, this.variadic, this.frames || env.frames.slice(0)); - }, - evalCall: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames ? this.frames.concat(env.frames) : env.frames, - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - rules, ruleset; - - frame.prependRule(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules); - ruleset.originalRuleset = this; - ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames))); - if (important) { - ruleset = this.parent.makeImportant.apply(ruleset); - } - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] // the parameter variables - .concat(this.frames) // the parent namespace/mixin frames - .concat(env.frames)))) { // the current environment frames - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (! this.variadic) { - if (argsLength < this.required) { return false; } - if (argsLength > this.params.length) { return false; } - } else { - if (argsLength < (this.required - 1)) { return false; } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('-'); - this.value.genCSS(env, output); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env); - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - a = a.toColor(); - } - if (b instanceof tree.Dimension && a instanceof tree.Color) { - b = b.toColor(); - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - genCSS: function (env, output) { - this.operands[0].genCSS(env, output); - if (this.isSpaced) { - output.add(" "); - } - output.add(this.op); - if (this.isSpaced) { - output.add(" "); - } - this.operands[1].genCSS(env, output); - }, - toCSS: tree.toCSS -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('('); - this.value.genCSS(env, output); - output.add(')'); - }, - toCSS: tree.toCSS, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - genCSS: function (env, output) { - if (!this.escaped) { - output.add(this.quote, this.currentFileInfo, this.index); - } - output.add(this.value); - if (!this.escaped) { - output.add(this.quote); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value || value instanceof tree.Ruleset) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.merge = merge; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - this.variable = name.charAt && (name.charAt(0) === '@'); -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index); - try { - this.value.genCSS(env, output); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index); - }, - toCSS: tree.toCSS, - eval: function (env) { - var strictMathBypass = false, name = this.name, evaldValue; - if (typeof name !== "string") { - // expand 'primitive' name directly to get - // things faster (~10% for benchmark.less): - name = (name.length === 1) - && (name[0] instanceof tree.Keyword) - ? name[0].value : evalName(env, name); - } - if (name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - evaldValue = this.value.eval(env); - - if (!this.variable && evaldValue.type === "DetachedRuleset") { - throw { message: "Rulesets cannot be evaluated on a property.", - index: this.index, filename: this.currentFileInfo.filename }; - } - - return new(tree.Rule)(name, - evaldValue, - this.important, - this.merge, - this.index, this.currentFileInfo, this.inline); - } - catch(e) { - if (typeof e.index !== 'number') { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - } - throw e; - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.merge, - this.index, this.currentFileInfo, this.inline); - } -}; - -function evalName(env, name) { - var value = "", i, n = name.length, - output = {add: function (s) {value += s;}}; - for (i = 0; i < n; i++) { - name[i].eval(env).genCSS(env, output); - } - return value; -} - -})(require('../tree')); - -(function (tree) { - -tree.RulesetCall = function (variable) { - this.variable = variable; -}; -tree.RulesetCall.prototype = { - type: "RulesetCall", - accept: function (visitor) { - }, - eval: function (env) { - var detachedRuleset = new(tree.Variable)(this.variable).eval(env); - return detachedRuleset.callEval(env); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - if (this.paths) { - visitor.visitArray(this.paths, true); - } else if (this.selectors) { - this.selectors = visitor.visitArray(this.selectors); - } - if (this.rules && this.rules.length) { - this.rules = visitor.visitArray(this.rules); - } - }, - eval: function (env) { - var thisSelectors = this.selectors, selectors, - selCnt, selector, i, defaultFunc = tree.defaultFunc, hasOnePassingSelector = false; - - if (thisSelectors && (selCnt = thisSelectors.length)) { - selectors = []; - defaultFunc.error({ - type: "Syntax", - message: "it is currently only allowed in parametric mixin guards," - }); - for (i = 0; i < selCnt; i++) { - selector = thisSelectors[i].eval(env); - selectors.push(selector); - if (selector.evaldCondition) { - hasOnePassingSelector = true; - } - } - defaultFunc.reset(); - } else { - hasOnePassingSelector = true; - } - - var rules = this.rules ? this.rules.slice(0) : null, - ruleset = new(tree.Ruleset)(selectors, rules, this.strictImports), - rule, subRule; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - if (!hasOnePassingSelector) { - rules.length = 0; - } - - // push the current ruleset to the frames stack - var envFrames = env.frames; - envFrames.unshift(ruleset); - - // currrent selectors - var envSelectors = env.selectors; - if (!envSelectors) { - env.selectors = envSelectors = []; - } - envSelectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - var rsRules = ruleset.rules, rsRuleCnt = rsRules ? rsRules.length : 0; - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Definition || rsRules[i] instanceof tree.DetachedRuleset) { - rsRules[i] = rsRules[i].eval(env); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Call) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } else if (rsRules[i] instanceof tree.RulesetCall) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).rules.filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope at all - return false; - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (i = 0; i < rsRules.length; i++) { - rule = rsRules[i]; - if (! (rule instanceof tree.mixin.Definition || rule instanceof tree.DetachedRuleset)) { - rsRules[i] = rule = rule.eval ? rule.eval(env) : rule; - } - } - - // Evaluate everything else - for (i = 0; i < rsRules.length; i++) { - rule = rsRules[i]; - // for rulesets, check if it is a css guard and can be removed - if (rule instanceof tree.Ruleset && rule.selectors && rule.selectors.length === 1) { - // check if it can be folded in (e.g. & where) - if (rule.selectors[0].isJustParentSelector()) { - rsRules.splice(i--, 1); - - for(var j = 0; j < rule.rules.length; j++) { - subRule = rule.rules[j]; - if (!(subRule instanceof tree.Rule) || !subRule.variable) { - rsRules.splice(++i, 0, subRule); - } - } - } - } - } - - // Pop the stack - envFrames.shift(); - envSelectors.shift(); - - if (env.mediaBlocks) { - for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var rules = this.rules, i, importRules; - if (!rules) { return; } - - for (i = 0; i < rules.length; i++) { - if (rules[i] instanceof tree.Import) { - importRules = rules[i].eval(env); - if (importRules && importRules.length) { - rules.splice.apply(rules, [i, 1].concat(importRules)); - i+= importRules.length-1; - } else { - rules.splice(i, 1, importRules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - // lets you call a css selector with a guard - matchCondition: function (args, env) { - var lastSelector = this.selectors[this.selectors.length-1]; - if (!lastSelector.evaldCondition) { - return false; - } - if (lastSelector.condition && - !lastSelector.condition.eval( - new(tree.evalEnv)(env, - env.frames))) { - return false; - } - return true; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (!this._variables) { - this._variables = !this.rules ? {} : this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - return this._variables; - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (!this.rules) { return null; } - - var _Ruleset = tree.Ruleset, _MixinDefinition = tree.mixin.Definition, - filtRules = [], rules = this.rules, cnt = rules.length, - i, rule; - - for (i = 0; i < cnt; i++) { - rule = rules[i]; - if ((rule instanceof _Ruleset) || (rule instanceof _MixinDefinition)) { - filtRules.push(rule); - } - } - - return filtRules; - }, - prependRule: function (rule) { - var rules = this.rules; - if (rules) { rules.unshift(rule); } else { this.rules = [ rule ]; } - }, - find: function (selector, self) { - self = self || this; - var rules = [], match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key]; } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - match = selector.match(rule.selectors[j]); - if (match) { - if (selector.elements.length > match) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(match)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - this._lookups[key] = rules; - return rules; - }, - genCSS: function (env, output) { - var i, j, - ruleNodes = [], - rulesetNodes = [], - rulesetNodeCnt, - debugInfo, // Line number debugging - rule, - path; - - env.tabLevel = (env.tabLevel || 0); - - if (!this.root) { - env.tabLevel++; - } - - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "), - sep; - - for (i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - if (rule.rules || (rule instanceof tree.Media) || rule instanceof tree.Directive || (this.root && rule instanceof tree.Comment)) { - rulesetNodes.push(rule); - } else { - ruleNodes.push(rule); - } - } - - // If this is the root node, we don't render - // a selector, or {}. - if (!this.root) { - debugInfo = tree.debugInfo(env, this, tabSetStr); - - if (debugInfo) { - output.add(debugInfo); - output.add(tabSetStr); - } - - var paths = this.paths, pathCnt = paths.length, - pathSubCnt; - - sep = env.compress ? ',' : (',\n' + tabSetStr); - - for (i = 0; i < pathCnt; i++) { - path = paths[i]; - if (!(pathSubCnt = path.length)) { continue; } - if (i > 0) { output.add(sep); } - - env.firstSelector = true; - path[0].genCSS(env, output); - - env.firstSelector = false; - for (j = 1; j < pathSubCnt; j++) { - path[j].genCSS(env, output); - } - } - - output.add((env.compress ? '{' : ' {\n') + tabRuleStr); - } - - // Compile rules and rulesets - for (i = 0; i < ruleNodes.length; i++) { - rule = ruleNodes[i]; - - // @page{ directive ends up with root elements inside it, a mix of rules and rulesets - // In this instance we do not know whether it is the last property - if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) { - env.lastRule = true; - } - - if (rule.genCSS) { - rule.genCSS(env, output); - } else if (rule.value) { - output.add(rule.value.toString()); - } - - if (!env.lastRule) { - output.add(env.compress ? '' : ('\n' + tabRuleStr)); - } else { - env.lastRule = false; - } - } - - if (!this.root) { - output.add((env.compress ? '}' : '\n' + tabSetStr + '}')); - env.tabLevel--; - } - - sep = (env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr); - rulesetNodeCnt = rulesetNodes.length; - if (rulesetNodeCnt) { - if (ruleNodes.length && sep) { output.add(sep); } - rulesetNodes[0].genCSS(env, output); - for (i = 1; i < rulesetNodeCnt; i++) { - if (sep) { output.add(sep); } - rulesetNodes[i].genCSS(env, output); - } - } - - if (!output.isEmpty() && !env.compress && this.firstRoot) { - output.add('\n'); - } - }, - - toCSS: tree.toCSS, - - markReferenced: function () { - if (!this.selectors) { - return; - } - for (var s = 0; s < this.selectors.length; s++) { - this.selectors[s].markReferenced(); - } - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for (i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for (j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length === 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', el.index, el.currentFileInfo)); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for (k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = selector.createDerived([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for (i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length === 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for (i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); - -(function (tree) { - -tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) { - this.elements = elements; - this.extendList = extendList; - this.condition = condition; - this.currentFileInfo = currentFileInfo || {}; - this.isReferenced = isReferenced; - if (!condition) { - this.evaldCondition = true; - } -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - if (this.elements) { - this.elements = visitor.visitArray(this.elements); - } - if (this.extendList) { - this.extendList = visitor.visitArray(this.extendList); - } - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - createDerived: function(elements, extendList, evaldCondition) { - evaldCondition = (evaldCondition != null) ? evaldCondition : this.evaldCondition; - var newSelector = new(tree.Selector)(elements, extendList || this.extendList, null, this.index, this.currentFileInfo, this.isReferenced); - newSelector.evaldCondition = evaldCondition; - newSelector.mediaEmpty = this.mediaEmpty; - return newSelector; - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - olen, i; - - other.CacheElements(); - - olen = other._elements.length; - if (olen === 0 || len < olen) { - return 0; - } else { - for (i = 0; i < olen; i++) { - if (elements[i].value !== other._elements[i]) { - return 0; - } - } - } - - return olen; // return number of matched elements - }, - CacheElements: function(){ - var css = '', len, v, i; - - if( !this._elements ){ - - len = this.elements.length; - for(i = 0; i < len; i++){ - - v = this.elements[i]; - css += v.combinator.value; - - if( !v.value.value ){ - css += v.value; - continue; - } - - if( typeof v.value.value !== "string" ){ - css = ''; - break; - } - css += v.value.value; - } - - this._elements = css.match(/[,&#\.\w-]([\w-]|(\\.))*/g); - - if (this._elements) { - if (this._elements[0] === "&") { - this._elements.shift(); - } - - } else { - this._elements = []; - } - - } - }, - isJustParentSelector: function() { - return !this.mediaEmpty && - this.elements.length === 1 && - this.elements[0].value === '&' && - (this.elements[0].combinator.value === ' ' || this.elements[0].combinator.value === ''); - }, - eval: function (env) { - var evaldCondition = this.condition && this.condition.eval(env), - elements = this.elements, extendList = this.extendList; - - elements = elements && elements.map(function (e) { return e.eval(env); }); - extendList = extendList && extendList.map(function(extend) { return extend.eval(env); }); - - return this.createDerived(elements, extendList, evaldCondition); - }, - genCSS: function (env, output) { - var i, element; - if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") { - output.add(' ', this.currentFileInfo, this.index); - } - if (!this._css) { - //TODO caching? speed comparison? - for(i = 0; i < this.elements.length; i++) { - element = this.elements[i]; - element.genCSS(env, output); - } - } - }, - toCSS: tree.toCSS, - markReferenced: function () { - this.isReferenced = true; - }, - getIsReferenced: function() { - return !this.currentFileInfo.reference || this.isReferenced; - }, - getIsOutput: function() { - return this.evaldCondition; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - eval: function () { return this; } -}; - -})(require('../tree')); - -(function (tree) { - -tree.URL = function (val, currentFileInfo, isEvald) { - this.value = val; - this.currentFileInfo = currentFileInfo; - this.isEvald = isEvald; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add("url("); - this.value.genCSS(env, output); - output.add(")"); - }, - toCSS: tree.toCSS, - eval: function (ctx) { - var val = this.value.eval(ctx), - rootpath; - - if (!this.isEvald) { - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - val.value = ctx.normalizePath(val.value); - - // Add url args if enabled - if (ctx.urlArgs) { - if (!val.value.match(/^\s*data:/)) { - var delimiter = val.value.indexOf('?') === -1 ? '?' : '&'; - var urlArgs = delimiter + ctx.urlArgs; - if (val.value.indexOf('#') !== -1) { - val.value = val.value.replace('#', urlArgs + '#'); - } else { - val.value += urlArgs; - } - } - } - } - - return new(tree.URL)(val, this.currentFileInfo, true); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - genCSS: function (env, output) { - var i; - for(i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i+1 < this.value.length) { - output.add((env && env.compress) ? ',' : ', '); - } - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { - this.name = name; - this.index = index; - this.currentFileInfo = currentFileInfo || {}; -}; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, name = this.name; - - if (name.indexOf('@@') === 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - variable = tree.find(env.frames, function (frame) { - var v = frame.variable(name); - if (v) { - return v.value.eval(env); - } - }); - if (variable) { - this.evaluating = false; - return variable; - } else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); - -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // map - filename to contents of all the files - 'contentsIgnoredChars', // map - filename to lines at the begining of each file to ignore - 'relativeUrls', // option - whether to adjust URL's to be relative - 'rootpath', // option - rootpath to append to URL's - 'strictImports', // option - - 'insecure', // option - whether to allow imports from insecure ssl hosts - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true - 'mime', // browser only - mime type for sheet import - 'useFileCache', // browser only - whether to use the per file session cache - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' - absolute path to the entry file - // 'reference' - whether the file should not be output and only output parts that are referenced - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.contentsIgnoredChars) { this.contentsIgnoredChars = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits', // whether units need to evaluate correctly - 'cleancss', // whether to compress with clean-css - 'sourceMap', // whether to output a source map - 'importMultiple', // whether we are currently importing multiple copies - 'urlArgs' // whether to add args into url tokens - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - tree.evalEnv.prototype.normalizePath = function( path ) { - var - segments = path.split("/").reverse(), - segment; - - path = []; - while (segments.length !== 0 ) { - segment = segments.pop(); - switch( segment ) { - case ".": - break; - case "..": - if ((path.length === 0) || (path[path.length - 1] === "..")) { - path.push( segment ); - } else { - path.pop(); - } - break; - default: - path.push( segment ); - break; - } - } - - return path.join("/"); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - }; - -})(require('./tree')); - -(function (tree) { - - var _visitArgs = { visitDeeper: true }, - _hasIndexed = false; - - function _noop(node) { - return node; - } - - function indexNodeTypes(parent, ticker) { - // add .typeIndex to tree node types for lookup table - var key, child; - for (key in parent) { - if (parent.hasOwnProperty(key)) { - child = parent[key]; - switch (typeof child) { - case "function": - // ignore bound functions directly on tree which do not have a prototype - // or aren't nodes - if (child.prototype && child.prototype.type) { - child.prototype.typeIndex = ticker++; - } - break; - case "object": - ticker = indexNodeTypes(child, ticker); - break; - } - } - } - return ticker; - } - - tree.visitor = function(implementation) { - this._implementation = implementation; - this._visitFnCache = []; - - if (!_hasIndexed) { - indexNodeTypes(tree, 1); - _hasIndexed = true; - } - }; - - tree.visitor.prototype = { - visit: function(node) { - if (!node) { - return node; - } - - var nodeTypeIndex = node.typeIndex; - if (!nodeTypeIndex) { - return node; - } - - var visitFnCache = this._visitFnCache, - impl = this._implementation, - aryIndx = nodeTypeIndex << 1, - outAryIndex = aryIndx | 1, - func = visitFnCache[aryIndx], - funcOut = visitFnCache[outAryIndex], - visitArgs = _visitArgs, - fnName; - - visitArgs.visitDeeper = true; - - if (!func) { - fnName = "visit" + node.type; - func = impl[fnName] || _noop; - funcOut = impl[fnName + "Out"] || _noop; - visitFnCache[aryIndx] = func; - visitFnCache[outAryIndex] = funcOut; - } - - if (func !== _noop) { - var newNode = func.call(impl, node, visitArgs); - if (impl.isReplacing) { - node = newNode; - } - } - - if (visitArgs.visitDeeper && node && node.accept) { - node.accept(this); - } - - if (funcOut != _noop) { - funcOut.call(impl, node); - } - - return node; - }, - visitArray: function(nodes, nonReplacing) { - if (!nodes) { - return nodes; - } - - var cnt = nodes.length, i; - - // Non-replacing - if (nonReplacing || !this._implementation.isReplacing) { - for (i = 0; i < cnt; i++) { - this.visit(nodes[i]); - } - return nodes; - } - - // Replacing - var out = []; - for (i = 0; i < cnt; i++) { - var evald = this.visit(nodes[i]); - if (!evald.splice) { - out.push(evald); - } else if (evald.length) { - this.flatten(evald, out); - } - } - return out; - }, - flatten: function(arr, out) { - if (!out) { - out = []; - } - - var cnt, i, item, - nestedCnt, j, nestedItem; - - for (i = 0, cnt = arr.length; i < cnt; i++) { - item = arr[i]; - if (!item.splice) { - out.push(item); - continue; - } - - for (j = 0, nestedCnt = item.length; j < nestedCnt; j++) { - nestedItem = item[j]; - if (!nestedItem.splice) { - out.push(nestedItem); - } else if (nestedItem.length) { - this.flatten(nestedItem, out); - } - } - } - - return out; - } - }; - -})(require('./tree')); -(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv, onceFileDetectionMap, recursionDetector) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - this.onceFileDetectionMap = onceFileDetectionMap || {}; - this.recursionDetector = {}; - if (recursionDetector) { - for(var fullFilename in recursionDetector) { - if (recursionDetector.hasOwnProperty(fullFilename)) { - this.recursionDetector[fullFilename] = true; - } - } - } - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode, - inlineCSS = importNode.options.inline; - - if (!importNode.css || inlineCSS) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - - if (importNode.options.multiple) { - env.importMultiple = true; - } - - this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, importedAtRoot, fullPath) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - - if (!env.importMultiple) { - if (importedAtRoot) { - importNode.skip = true; - } else { - importNode.skip = function() { - if (fullPath in importVisitor.onceFileDetectionMap) { - return true; - } - importVisitor.onceFileDetectionMap[fullPath] = true; - return false; - }; - } - } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - importNode.importedFilename = fullPath; - var duplicateImport = importedAtRoot || fullPath in importVisitor.recursionDetector; - - if (!inlineCSS && (env.importMultiple || !duplicateImport)) { - importVisitor.recursionDetector[fullPath] = true; - new(tree.importVisitor)(importVisitor._importer, subFinish, env, importVisitor.onceFileDetectionMap, importVisitor.recursionDetector) - .run(root); - return; - } - } - - subFinish(); - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree')); -(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1], - paths = [], selectors; - - this.contexts.push(paths); - - if (! rulesetNode.root) { - selectors = rulesetNode.selectors; - if (selectors) { - selectors = selectors.filter(function(selector) { return selector.getIsOutput(); }); - rulesetNode.selectors = selectors.length ? selectors : (selectors = null); - if (selectors) { rulesetNode.joinSelectors(paths, context, selectors); } - } - if (!selectors) { rulesetNode.rules = null; } - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree')); -(function (tree) { - tree.toCSSVisitor = function(env) { - this._visitor = new tree.visitor(this); - this._env = env; - }; - - tree.toCSSVisitor.prototype = { - isReplacing: true, - run: function (root) { - return this._visitor.visit(root); - }, - - visitRule: function (ruleNode, visitArgs) { - if (ruleNode.variable) { - return []; - } - return ruleNode; - }, - - visitMixinDefinition: function (mixinNode, visitArgs) { - // mixin definitions do not get eval'd - this means they keep state - // so we have to clear that state here so it isn't used if toCSS is called twice - mixinNode.frames = []; - return []; - }, - - visitExtend: function (extendNode, visitArgs) { - return []; - }, - - visitComment: function (commentNode, visitArgs) { - if (commentNode.isSilent(this._env)) { - return []; - } - return commentNode; - }, - - visitMedia: function(mediaNode, visitArgs) { - mediaNode.accept(this._visitor); - visitArgs.visitDeeper = false; - - if (!mediaNode.rules.length) { - return []; - } - return mediaNode; - }, - - visitDirective: function(directiveNode, visitArgs) { - if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) { - return []; - } - if (directiveNode.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (this.charset) { - if (directiveNode.debugInfo) { - var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n"); - comment.debugInfo = directiveNode.debugInfo; - return this._visitor.visit(comment); - } - return []; - } - this.charset = true; - } - return directiveNode; - }, - - checkPropertiesInRoot: function(rules) { - var ruleNode; - for(var i = 0; i < rules.length; i++) { - ruleNode = rules[i]; - if (ruleNode instanceof tree.Rule && !ruleNode.variable) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null}; - } - } - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var rule, rulesets = []; - if (rulesetNode.firstRoot) { - this.checkPropertiesInRoot(rulesetNode.rules); - } - if (! rulesetNode.root) { - if (rulesetNode.paths) { - rulesetNode.paths = rulesetNode.paths - .filter(function(p) { - var i; - if (p[0].elements[0].combinator.value === ' ') { - p[0].elements[0].combinator = new(tree.Combinator)(''); - } - for(i = 0; i < p.length; i++) { - if (p[i].getIsReferenced() && p[i].getIsOutput()) { - return true; - } - } - return false; - }); - } - - // Compile rules and rulesets - var nodeRules = rulesetNode.rules, nodeRuleCnt = nodeRules ? nodeRules.length : 0; - for (var i = 0; i < nodeRuleCnt; ) { - rule = nodeRules[i]; - if (rule && rule.rules) { - // visit because we are moving them out from being a child - rulesets.push(this._visitor.visit(rule)); - nodeRules.splice(i, 1); - nodeRuleCnt--; - continue; - } - i++; - } - // accept the visitor to remove rules and refactor itself - // then we can decide now whether we want it or not - if (nodeRuleCnt > 0) { - rulesetNode.accept(this._visitor); - } else { - rulesetNode.rules = null; - } - visitArgs.visitDeeper = false; - - nodeRules = rulesetNode.rules; - if (nodeRules) { - this._mergeRules(nodeRules); - nodeRules = rulesetNode.rules; - } - if (nodeRules) { - this._removeDuplicateRules(nodeRules); - nodeRules = rulesetNode.rules; - } - - // now decide whether we keep the ruleset - if (nodeRules && nodeRules.length > 0 && rulesetNode.paths.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } else { - rulesetNode.accept(this._visitor); - visitArgs.visitDeeper = false; - if (rulesetNode.firstRoot || (rulesetNode.rules && rulesetNode.rules.length > 0)) { - rulesets.splice(0, 0, rulesetNode); - } - } - if (rulesets.length === 1) { - return rulesets[0]; - } - return rulesets; - }, - - _removeDuplicateRules: function(rules) { - if (!rules) { return; } - - // remove duplicates - var ruleCache = {}, - ruleList, rule, i; - - for(i = rules.length - 1; i >= 0 ; i--) { - rule = rules[i]; - if (rule instanceof tree.Rule) { - if (!ruleCache[rule.name]) { - ruleCache[rule.name] = rule; - } else { - ruleList = ruleCache[rule.name]; - if (ruleList instanceof tree.Rule) { - ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)]; - } - var ruleCSS = rule.toCSS(this._env); - if (ruleList.indexOf(ruleCSS) !== -1) { - rules.splice(i, 1); - } else { - ruleList.push(ruleCSS); - } - } - } - } - }, - - _mergeRules: function (rules) { - if (!rules) { return; } - - var groups = {}, - parts, - rule, - key; - - for (var i = 0; i < rules.length; i++) { - rule = rules[i]; - - if ((rule instanceof tree.Rule) && rule.merge) { - key = [rule.name, - rule.important ? "!" : ""].join(","); - - if (!groups[key]) { - groups[key] = []; - } else { - rules.splice(i--, 1); - } - - groups[key].push(rule); - } - } - - Object.keys(groups).map(function (k) { - - function toExpression(values) { - return new (tree.Expression)(values.map(function (p) { - return p.value; - })); - } - - function toValue(values) { - return new (tree.Value)(values.map(function (p) { - return p; - })); - } - - parts = groups[k]; - - if (parts.length > 1) { - rule = parts[0]; - var spacedGroups = []; - var lastSpacedGroup = []; - parts.map(function (p) { - if (p.merge==="+") { - if (lastSpacedGroup.length > 0) { - spacedGroups.push(toExpression(lastSpacedGroup)); - } - lastSpacedGroup = []; - } - lastSpacedGroup.push(p); - }); - spacedGroups.push(toExpression(lastSpacedGroup)); - rule.value = toValue(spacedGroups); - } - }); - } - }; - -})(require('./tree')); -(function (tree) { - /*jshint loopfunc:true */ - - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - var rules = rulesetNode.rules, ruleCnt = rules ? rules.length : 0; - for(i = 0; i < ruleCnt; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rules[i]); - rulesetNode.extendOnEveryPath = true; - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - var paths = rulesetNode.paths; - for(i = 0; i < paths.length; i++) { - var selectorPath = paths[i], - selector = selectorPath[selectorPath.length - 1], - selExtendList = selector.extendList; - - extendList = selExtendList ? selExtendList.slice(0).concat(allSelectorsExtendList) - : allSelectorsExtendList; - - if (extendList) { - extendList = extendList.map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - } - - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if( extend.parent_ids.indexOf( targetExtend.object_id ) >= 0 ){ continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parent_ids = newExtend.parent_ids.concat(targetExtend.parent_ids, extend.parent_ids); - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (rulesetNode.extendOnEveryPath) { continue; } - var extendList = selectorPath[selectorPath.length-1].extendList; - if (extendList && extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator === '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - elementValue1 = elementValue1.value; - elementValue2 = elementValue2.value; - if (elementValue1 instanceof tree.Selector) { - if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) { - return false; - } - for(var i = 0; i currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - newElements = selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)); - - if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) { - path[path.length - 1].elements = - path[path.length - 1].elements.concat(newElements); - } else { - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - newElements - )); - } - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.sourceMapOutput = function (options) { - this._css = []; - this._rootNode = options.rootNode; - this._writeSourceMap = options.writeSourceMap; - this._contentsMap = options.contentsMap; - this._contentsIgnoredCharsMap = options.contentsIgnoredCharsMap; - this._sourceMapFilename = options.sourceMapFilename; - this._outputFilename = options.outputFilename; - this._sourceMapURL = options.sourceMapURL; - if (options.sourceMapBasepath) { - this._sourceMapBasepath = options.sourceMapBasepath.replace(/\\/g, '/'); - } - this._sourceMapRootpath = options.sourceMapRootpath; - this._outputSourceFiles = options.outputSourceFiles; - this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator; - - if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') { - this._sourceMapRootpath += '/'; - } - - this._lineNumber = 0; - this._column = 0; - }; - - tree.sourceMapOutput.prototype.normalizeFilename = function(filename) { - filename = filename.replace(/\\/g, '/'); - - if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) { - filename = filename.substring(this._sourceMapBasepath.length); - if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') { - filename = filename.substring(1); - } - } - return (this._sourceMapRootpath || "") + filename; - }; - - tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) { - - //ignore adding empty strings - if (!chunk) { - return; - } - - var lines, - sourceLines, - columns, - sourceColumns, - i; - - if (fileInfo) { - var inputSource = this._contentsMap[fileInfo.filename]; - - // remove vars/banner added to the top of the file - if (this._contentsIgnoredCharsMap[fileInfo.filename]) { - // adjust the index - index -= this._contentsIgnoredCharsMap[fileInfo.filename]; - if (index < 0) { index = 0; } - // adjust the source - inputSource = inputSource.slice(this._contentsIgnoredCharsMap[fileInfo.filename]); - } - inputSource = inputSource.substring(0, index); - sourceLines = inputSource.split("\n"); - sourceColumns = sourceLines[sourceLines.length-1]; - } - - lines = chunk.split("\n"); - columns = lines[lines.length-1]; - - if (fileInfo) { - if (!mapLines) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column}, - original: { line: sourceLines.length, column: sourceColumns.length}, - source: this.normalizeFilename(fileInfo.filename)}); - } else { - for(i = 0; i < lines.length; i++) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0}, - original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0}, - source: this.normalizeFilename(fileInfo.filename)}); - } - } - } - - if (lines.length === 1) { - this._column += columns.length; - } else { - this._lineNumber += lines.length - 1; - this._column = columns.length; - } - - this._css.push(chunk); - }; - - tree.sourceMapOutput.prototype.isEmpty = function() { - return this._css.length === 0; - }; - - tree.sourceMapOutput.prototype.toCSS = function(env) { - this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null }); - - if (this._outputSourceFiles) { - for(var filename in this._contentsMap) { - if (this._contentsMap.hasOwnProperty(filename)) - { - var source = this._contentsMap[filename]; - if (this._contentsIgnoredCharsMap[filename]) { - source = source.slice(this._contentsIgnoredCharsMap[filename]); - } - this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), source); - } - } - } - - this._rootNode.genCSS(env, this); - - if (this._css.length > 0) { - var sourceMapURL, - sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); - - if (this._sourceMapURL) { - sourceMapURL = this._sourceMapURL; - } else if (this._sourceMapFilename) { - sourceMapURL = this.normalizeFilename(this._sourceMapFilename); - } - - if (this._writeSourceMap) { - this._writeSourceMap(sourceMapContent); - } else { - sourceMapURL = "data:application/json," + encodeURIComponent(sourceMapContent); - } - - if (sourceMapURL) { - this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */"); - } - } - - return this._css.join(''); - }; - -})(require('./tree')); - -// -// browser.js - client-side engine -// -/*global less, window, document, XMLHttpRequest, location */ - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - (location.port && - location.port.length > 0) || - isFileProtocol ? 'development' - : 'production'); - -var logLevel = { - debug: 3, - info: 2, - errors: 1, - none: 0 -}; - -// The amount of logging in the javascript console. -// 3 - Debug, information and errors -// 2 - Information and errors -// 1 - Errors -// 0 - None -// Defaults to 2 -less.logLevel = typeof(less.logLevel) != 'undefined' ? less.logLevel : (less.env === 'development' ? logLevel.debug : logLevel.errors); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - if (less.functions.hasOwnProperty(func)) { - less.tree.functions[func] = less.functions[func]; - } - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -var typePattern = /^text\/(x-)?less$/; -var cache = null; -var fileCache = {}; - -function log(str, level) { - if (typeof(console) !== 'undefined' && less.logLevel >= level) { - console.log('less: ' + str); - } -} - -function extractId(href) { - return href.replace(/^[a-z-]+:\/+?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function errorConsole(e, rootHref) { - var template = '{line} {content}'; - var filename = e.filename || rootHref; - var errors = []; - var content = (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - " in " + filename + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n' + - errors.join('\n'); - } else if (e.stack) { - content += e.stack; - } - log(content, logLevel.errors); -} - -function createCSS(styles, sheet, lastModified) { - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If this has already been inserted into the DOM, we may need to replace it - var oldCss = document.getElementById(id); - var keepOldCss = false; - - // Create a new stylesheet node for insertion or (if necessary) replacement - var css = document.createElement('style'); - css.setAttribute('type', 'text/css'); - if (sheet.media) { - css.setAttribute('media', sheet.media); - } - css.id = id; - - if (css.styleSheet) { // IE - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } else { - css.appendChild(document.createTextNode(styles)); - - // If new contents match contents of oldCss, don't replace oldCss - keepOldCss = (oldCss !== null && oldCss.childNodes.length > 0 && css.childNodes.length > 0 && - oldCss.firstChild.nodeValue === css.firstChild.nodeValue); - } - - var head = document.getElementsByTagName('head')[0]; - - // If there is no oldCss, just append; otherwise, only append if we need - // to replace oldCss with an updated stylesheet - if (oldCss === null || keepOldCss === false) { - var nextEl = sheet && sheet.nextSibling || null; - if (nextEl) { - nextEl.parentNode.insertBefore(css, nextEl); - } else { - head.appendChild(css); - } - } - if (oldCss && keepOldCss === false) { - oldCss.parentNode.removeChild(oldCss); - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.', logLevel.info); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save', logLevel.errors); - } - } -} - -function postProcessCSS(styles) { - if (less.postProcessor && typeof less.postProcessor === 'function') { - styles = less.postProcessor.call(styles, styles) || styles; - } - return styles; -} - -function errorHTML(e, rootHref) { - var id = 'less-error-message:' + extractId(rootHref || ""); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, errors = []; - var filename = e.filename || rootHref; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - '

    ' + '

    in ' + filenameNoPath + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - '
      ' + errors.join('') + '
    '; - } else if (e.stack) { - content += '
    ' + e.stack.split('\n').slice(1).join('
    '); - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #dd6666;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.line {', - 'color: #ff0000;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); - - if (less.env == 'development') { - timer = setInterval(function () { - if (document.body) { - if (document.getElementById(id)) { - document.body.replaceChild(elem, document.getElementById(id)); - } else { - document.body.insertBefore(elem, document.body.firstChild); - } - clearInterval(timer); - } - }, 10); - } -} - -function error(e, rootHref) { - if (!less.errorReporting || less.errorReporting === "html") { - errorHTML(e, rootHref); - } else if (less.errorReporting === "console") { - errorConsole(e, rootHref); - } else if (typeof less.errorReporting === 'function') { - less.errorReporting("add", e, rootHref); - } -} - -function removeErrorHTML(path) { - var node = document.getElementById('less-error-message:' + extractId(path)); - if (node) { - node.parentNode.removeChild(node); - } -} - -function removeErrorConsole(path) { - //no action -} - -function removeError(path) { - if (!less.errorReporting || less.errorReporting === "html") { - removeErrorHTML(path); - } else if (less.errorReporting === "console") { - removeErrorConsole(path); 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c=this.frames||b.frames.slice(0);return new a.DetachedRuleset(this.ruleset,c)},callEval:function(b){return this.ruleset.eval(this.frames?new a.evalEnv(b,this.frames.concat(b.frames)):b)}}}(c("../tree")),function(a){a.Dimension=function(c,d){this.value=parseFloat(c),this.unit=d&&d instanceof a.Unit?d:new a.Unit(d?[d]:b)},a.Dimension.prototype={type:"Dimension",accept:function(a){this.unit=a.visit(this.unit)},eval:function(){return this},toColor:function(){return new a.Color([this.value,this.value,this.value])},genCSS:function(b,c){if(b&&b.strictUnits&&!this.unit.isSingular())throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString());var d=a.fround(b,this.value),e=String(d);if(0!==d&&1e-6>d&&d>-1e-6&&(e=d.toFixed(20).replace(/0+$/,"")),b&&b.compress){if(0===d&&this.unit.isLength())return void c.add(e);d>0&&1>d&&(e=e.substr(1))}c.add(e),this.unit.genCSS(b,c)},toCSS:a.toCSS,operate:function(b,c,d){var e=a.operate(b,c,this.value,d.value),f=this.unit.clone();if("+"===c||"-"===c)if(0===f.numerator.length&&0===f.denominator.length)f.numerator=d.unit.numerator.slice(0),f.denominator=d.unit.denominator.slice(0);else if(0===d.unit.numerator.length&&0===f.denominator.length);else{if(d=d.convertTo(this.unit.usedUnits()),b.strictUnits&&d.unit.toString()!==f.toString())throw new Error("Incompatible units. Change the units or use the unit function. 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this.rules?a.Ruleset.prototype.find.apply(this.rules,arguments):void 0},rulesets:function(){return this.rules?a.Ruleset.prototype.rulesets.apply(this.rules):void 0},markReferenced:function(){var a,b;if(this.isReferenced=!0,this.rules)for(b=this.rules.rules,a=0;a":" > ","|":"|","^":" ^ ","^^":" ^^ "},_outputMapCompressed:{"":""," ":" ",":":" :","+":"+","~":"~",">":">","|":"|","^":"^","^^":"^^"},genCSS:function(a,b){b.add((a.compress?this._outputMapCompressed:this._outputMap)[this.value])},toCSS:a.toCSS}}(c("../tree")),function(a){a.Expression=function(a){this.value=a},a.Expression.prototype={type:"Expression",accept:function(a){this.value&&(this.value=a.visitArray(this.value))},eval:function(b){var c,d=this.parens&&!this.parensInOp,e=!1;return d&&b.inParenthesis(),this.value.length>1?c=new a.Expression(this.value.map(function(a){return 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a.Ruleset.prototype.find.apply(this.rules[0],arguments)},rulesets:function(){return a.Ruleset.prototype.rulesets.apply(this.rules[0])},emptySelectors:function(){var b=new a.Element("","&",this.index,this.currentFileInfo),c=[new a.Selector([b],null,null,this.index,this.currentFileInfo)];return c[0].mediaEmpty=!0,c},markReferenced:function(){var a,b=this.rules[0].rules;for(this.rules[0].markReferenced(),this.isReferenced=!0,a=0;a1){var d=this.emptySelectors();c=new a.Ruleset(d,b.mediaBlocks),c.multiMedia=!0}return delete b.mediaBlocks,delete b.mediaPath,c},evalNested:function(b){var c,d,e=b.mediaPath.concat([this]);for(c=0;c0;c--)b.splice(c,0,new a.Anonymous("and"));return new a.Expression(b)})),new a.Ruleset([],[])},permute:function(a){if(0===a.length)return[];if(1===a.length)return a[0];for(var b=[],c=this.permute(a.slice(1)),d=0;d0){for(j=!0,g=0;gh;h++)s.value(h),r[h]=d.matchCondition(e,b);(r[0]||r[1])&&(r[0]!=r[1]&&(l.group=r[1]?u:v),q.push(l))}else q.push(l);p=!0}}for(s.reset(),n=[0,0,0],g=0;g0)m=v;else if(m=u,n[u]+n[v]>1)throw{type:"Runtime",message:"Ambiguous use of `default()` found when matching for `"+this.format(e)+"`",index:this.index,filename:this.currentFileInfo.filename};for(g=0;gh;h++)if(g=d[h],k=g&&g.name){for(l=!1,i=0;ii;i++)f.push(d[i].value.eval(b));n.prependRule(new a.Rule(k,new a.Expression(f).eval(b)))}else{if(j=g&&g.value)j=j.eval(b);else{if(!o[h].value)throw{type:"Runtime",message:"wrong number of arguments for "+this.name+" ("+p+" for "+this.arity+")"};j=o[h].value.eval(c),n.resetCache()}n.prependRule(new a.Rule(k,j)),e[h]=j}if(o[h].variadic&&d)for(i=m;p>i;i++)e[i]=d[i].value.eval(b);m++}return n},eval:function(b){return new a.mixin.Definition(this.name,this.params,this.rules,this.condition,this.variadic,this.frames||b.frames.slice(0))},evalCall:function(b,c,d){var e,f,g=[],h=this.frames?this.frames.concat(b.frames):b.frames,i=this.evalParams(b,new a.evalEnv(b,h),c,g);return i.prependRule(new a.Rule("@arguments",new a.Expression(g).eval(b))),e=this.rules.slice(0),f=new a.Ruleset(null,e),f.originalRuleset=this,f=f.eval(new a.evalEnv(b,[this,i].concat(h))),d&&(f=this.parent.makeImportant.apply(f)),f},matchCondition:function(b,c){return this.condition&&!this.condition.eval(new a.evalEnv(c,[this.evalParams(c,new a.evalEnv(c,this.frames.concat(c.frames)),b,[])].concat(this.frames).concat(c.frames)))?!1:!0},matchArgs:function(a,b){var c,d=a&&a.length||0;if(this.variadic){if(dthis.params.length)return!1}c=Math.min(d,this.arity);for(var e=0;c>e;e++)if(!this.params[e].name&&!this.params[e].variadic&&a[e].value.eval(b).toCSS()!=this.params[e].value.eval(b).toCSS())return!1;return!0}}}(c("../tree")),function(a){a.Negative=function(a){this.value=a},a.Negative.prototype={type:"Negative",accept:function(a){this.value=a.visit(this.value)},genCSS:function(a,b){b.add("-"),this.value.genCSS(a,b)},toCSS:a.toCSS,eval:function(b){return b.isMathOn()?new a.Operation("*",[new 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-}; - - -if (typeof(window.less) === 'undefined' || typeof(window.less.nodeType) !== 'undefined') { window.less = {}; } -less = window.less; -tree = window.less.tree = {}; -less.mode = 'browser'; - -var less, tree; - -// Node.js does not have a header file added which defines less -if (less === undefined) { - less = exports; - tree = require('./tree'); - less.mode = 'node'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `currentPos` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - saveStack = [], // holds state for backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // current chunk - currentPos, // index of current chunk, in `input` - parser, - parsers, - rootFilename = env && env.filename; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed around by reference. - if (!(env instanceof tree.parseEnv)) { - env = new tree.parseEnv(env); - } - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - contentsIgnoredChars: env.contentsIgnoredChars, // lines inserted, not in the original less - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, currentFileInfo, importOptions, callback) { - var parserImports = this; - this.queue.push(path); - - var fileParsedFunc = function (e, root, fullPath) { - parserImports.queue.splice(parserImports.queue.indexOf(path), 1); // Remove the path from the queue - - var importedPreviously = fullPath === rootFilename; - - parserImports.files[fullPath] = root; // Store the root - - if (e && !parserImports.error) { parserImports.error = e; } - - callback(e, root, importedPreviously, fullPath); - }; - - if (less.Parser.importer) { - less.Parser.importer(path, currentFileInfo, fileParsedFunc, env); - } else { - less.Parser.fileLoader(path, currentFileInfo, function(e, contents, fullPath, newFileInfo) { - if (e) {fileParsedFunc(e); return;} - - var newEnv = new tree.parseEnv(env); - - newEnv.currentFileInfo = newFileInfo; - newEnv.processImports = false; - newEnv.contents[fullPath] = contents; - - if (currentFileInfo.reference || importOptions.reference) { - newFileInfo.reference = true; - } - - if (importOptions.inline) { - fileParsedFunc(null, contents, fullPath); - } else { - new(less.Parser)(newEnv).parse(contents, function (e, root) { - fileParsedFunc(e, root, fullPath); - }); - } - }, env); - } - } - }; - - function save() { currentPos = i; saveStack.push( { current: current, i: i, j: j }); } - function restore() { var state = saveStack.pop(); current = state.current; currentPos = i = state.i; j = state.j; } - function forget() { saveStack.pop(); } - - function sync() { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - } - function isWhitespace(str, pos) { - var code = str.charCodeAt(pos | 0); - return (code <= 32) && (code === 32 || code === 10 || code === 9); - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var tokType = typeof tok, - match, length; - - // Either match a single character in the input, - // or match a regexp in the current chunk (`current`). - // - if (tokType === "string") { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - // regexp - sync (); - if (! (match = tok.exec(current))) { - return null; - } - - length = match[0].length; - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - - // Specialization of $(tok) - function $re(tok) { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - var m = tok.exec(current); - if (!m) { - return null; - } - - skipWhitespace(m[0].length); - if(typeof m === "string") { - return m; - } - - return m.length === 1 ? m[0] : m; - } - - var _$re = $re; - - // Specialization of $(tok) - function $char(tok) { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - curr = i - currentPos, - endIndex = i + current.length - curr, - mem = (i += length), - inp = input, - c; - - for (; i < endIndex; i++) { - c = inp.charCodeAt(i); - if (c > 32) { - break; - } - - if ((c !== 32) && (c !== 10) && (c !== 9) && (c !== 13)) { - break; - } - } - - current = current.slice(length + i - mem + curr); - currentPos = i; - - if (!current.length && (j < chunks.length - 1)) { - current = chunks[++j]; - skipWhitespace(0); // skip space at the beginning of a chunk - return true; // things changed - } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - // some older browsers return typeof 'function' for RegExp - var result = (Object.prototype.toString.call(arg) === '[object Function]') ? arg.call(parsers) : $(arg); - if (result) { - return result; - } - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } - - // Specialization of expect() - function expectChar(arg, msg) { - if (input.charAt(i) === arg) { - skipWhitespace(1); - return arg; - } - error(msg || "expected '" + arg + "' got '" + input.charAt(i) + "'"); - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - return tok.test(current); - } - } - - // Specialization of peek() - function peekChar(tok) { - return input.charAt(i) === tok; - } - - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, inputStream) { - var n = index + 1, - line = null, - column = -1; - - while (--n >= 0 && inputStream.charAt(n) !== '\n') { - column++; - } - - if (typeof index === 'number') { - line = (inputStream.slice(0, index).match(/\n/g) || "").length; - } - - return { - line: line, - column: column - }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - callLine = e.call && getLocation(e.call, input).line, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = callLine + 1; - this.callExtract = lines[callLine]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // @param str A string containing 'less' markup - // @param callback call `callback` when done. - // @param [additionalData] An optional map which can contains vars - a map (key, value) of variables to apply - // - parse: function (str, callback, additionalData) { - var root, line, lines, error = null, globalVars, modifyVars, preText = ""; - - i = j = currentPos = furthest = 0; - - globalVars = (additionalData && additionalData.globalVars) ? less.Parser.serializeVars(additionalData.globalVars) + '\n' : ''; - modifyVars = (additionalData && additionalData.modifyVars) ? '\n' + less.Parser.serializeVars(additionalData.modifyVars) : ''; - - if (globalVars || (additionalData && additionalData.banner)) { - preText = ((additionalData && additionalData.banner) ? additionalData.banner : "") + globalVars; - parser.imports.contentsIgnoredChars[env.currentFileInfo.filename] = preText.length; - } - - str = str.replace(/\r\n/g, '\n'); - // Remove potential UTF Byte Order Mark - input = str = preText + str.replace(/^\uFEFF/, '') + modifyVars; - parser.imports.contents[env.currentFileInfo.filename] = str; - - // Split the input into chunks. - chunks = (function (input) { - var len = input.length, level = 0, parenLevel = 0, - lastOpening, lastOpeningParen, lastMultiComment, lastMultiCommentEndBrace, - chunks = [], emitFrom = 0, - parserCurrentIndex, currentChunkStartIndex, cc, cc2, matched; - - function fail(msg, index) { - error = new(LessError)({ - index: index || parserCurrentIndex, - type: 'Parse', - message: msg, - filename: env.currentFileInfo.filename - }, env); - } - - function emitChunk(force) { - var len = parserCurrentIndex - emitFrom; - if (((len < 512) && !force) || !len) { - return; - } - chunks.push(input.slice(emitFrom, parserCurrentIndex + 1)); - emitFrom = parserCurrentIndex + 1; - } - - for (parserCurrentIndex = 0; parserCurrentIndex < len; parserCurrentIndex++) { - cc = input.charCodeAt(parserCurrentIndex); - if (((cc >= 97) && (cc <= 122)) || (cc < 34)) { - // a-z or whitespace - continue; - } - - switch (cc) { - case 40: // ( - parenLevel++; - lastOpeningParen = parserCurrentIndex; - continue; - case 41: // ) - if (--parenLevel < 0) { - return fail("missing opening `(`"); - } - continue; - case 59: // ; - if (!parenLevel) { emitChunk(); } - continue; - case 123: // { - level++; - lastOpening = parserCurrentIndex; - continue; - case 125: // } - if (--level < 0) { - return fail("missing opening `{`"); - } - if (!level && !parenLevel) { emitChunk(); } - continue; - case 92: // \ - if (parserCurrentIndex < len - 1) { parserCurrentIndex++; continue; } - return fail("unescaped `\\`"); - case 34: - case 39: - case 96: // ", ' and ` - matched = 0; - currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 1; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 > 96) { continue; } - if (cc2 == cc) { matched = 1; break; } - if (cc2 == 92) { // \ - if (parserCurrentIndex == len - 1) { - return fail("unescaped `\\`"); - } - parserCurrentIndex++; - } - } - if (matched) { continue; } - return fail("unmatched `" + String.fromCharCode(cc) + "`", currentChunkStartIndex); - case 47: // /, check for comment - if (parenLevel || (parserCurrentIndex == len - 1)) { continue; } - cc2 = input.charCodeAt(parserCurrentIndex + 1); - if (cc2 == 47) { - // //, find lnfeed - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if ((cc2 <= 13) && ((cc2 == 10) || (cc2 == 13))) { break; } - } - } else if (cc2 == 42) { - // /*, find */ - lastMultiComment = currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len - 1; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 == 125) { lastMultiCommentEndBrace = parserCurrentIndex; } - if (cc2 != 42) { continue; } - if (input.charCodeAt(parserCurrentIndex + 1) == 47) { break; } - } - if (parserCurrentIndex == len - 1) { - return fail("missing closing `*/`", currentChunkStartIndex); - } - parserCurrentIndex++; - } - continue; - case 42: // *, check for unmatched */ - if ((parserCurrentIndex < len - 1) && (input.charCodeAt(parserCurrentIndex + 1) == 47)) { - return fail("unmatched `/*`"); - } - continue; - } - } - - if (level !== 0) { - if ((lastMultiComment > lastOpening) && (lastMultiCommentEndBrace > lastMultiComment)) { - return fail("missing closing `}` or `*/`", lastOpening); - } else { - return fail("missing closing `}`", lastOpening); - } - } else if (parenLevel !== 0) { - return fail("missing closing `)`", lastOpeningParen); - } - - emitChunk(true); - return chunks; - })(str); - - if (error) { - return callback(new(LessError)(error, env)); - } - - current = chunks[0]; - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)(null, this.parsers.primary()); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - return function (options, variables) { - options = options || {}; - var evaldRoot, - css, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, null, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var preEvalVisitors = [], - visitors = [ - new(tree.joinSelectorVisitor)(), - new(tree.processExtendsVisitor)(), - new(tree.toCSSVisitor)({compress: Boolean(options.compress)}) - ], i, root = this; - - if (options.plugins) { - for(i =0; i < options.plugins.length; i++) { - if (options.plugins[i].isPreEvalVisitor) { - preEvalVisitors.push(options.plugins[i]); - } else { - if (options.plugins[i].isPreVisitor) { - visitors.splice(0, 0, options.plugins[i]); - } else { - visitors.push(options.plugins[i]); - } - } - } - } - - for(i = 0; i < preEvalVisitors.length; i++) { - preEvalVisitors[i].run(root); - } - - evaldRoot = evaluate.call(root, evalEnv); - - for(i = 0; i < visitors.length; i++) { - visitors[i].run(evaldRoot); - } - - if (options.sourceMap) { - evaldRoot = new tree.sourceMapOutput( - { - contentsIgnoredCharsMap: parser.imports.contentsIgnoredChars, - writeSourceMap: options.writeSourceMap, - rootNode: evaldRoot, - contentsMap: parser.imports.contents, - sourceMapFilename: options.sourceMapFilename, - sourceMapURL: options.sourceMapURL, - outputFilename: options.sourceMapOutputFilename, - sourceMapBasepath: options.sourceMapBasepath, - sourceMapRootpath: options.sourceMapRootpath, - outputSourceFiles: options.outputSourceFiles, - sourceMapGenerator: options.sourceMapGenerator - }); - } - - css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits), - numPrecision: 8}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.cleancss && less.mode === 'node') { - var CleanCSS = require('clean-css'), - cleancssOptions = options.cleancssOptions || {}; - - if (cleancssOptions.keepSpecialComments === undefined) { - cleancssOptions.keepSpecialComments = "*"; - } - cleancssOptions.processImport = false; - cleancssOptions.noRebase = true; - if (cleancssOptions.noAdvanced === undefined) { - cleancssOptions.noAdvanced = true; - } - - return new CleanCSS(cleancssOptions).minify(css); - } else if (options.compress) { - return css.replace(/(^(\s)+)|((\s)+$)/g, ""); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - var loc = getLocation(i, input); - lines = input.split('\n'); - line = loc.line + 1; - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: loc.column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - return callback(e); - } - else { - return callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - return finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some Less code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: parsers = { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var mixin = this.mixin, $re = _$re, root = [], node; - - while (current) - { - node = this.extendRule() || mixin.definition() || this.rule() || this.ruleset() || - mixin.call() || this.comment() || this.rulesetCall() || this.directive(); - if (node) { - root.push(node); - } else { - if (!($re(/^[\s\n]+/) || $re(/^;+/))) { - break; - } - } - if (peekChar('}')) { - break; - } - } - - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') { return; } - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($re(/^\/\/.*/), true, i, env.currentFileInfo); - } - comment = $re(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/); - if (comment) { - return new(tree.Comment)(comment, false, i, env.currentFileInfo); - } - }, - - comments: function () { - var comment, comments = []; - - while(true) { - comment = this.comment(); - if (!comment) { - break; - } - comments.push(comment); - } - - return comments; - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; } - - if (e) { $char('~'); } - - str = $re(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/); - if (str) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - k = $re(/^%|^[_A-Za-z-][_A-Za-z0-9-]*/); - if (k) { - var color = tree.Color.fromKeyword(k); - if (color) { - return color; - } - return new(tree.Keyword)(k); - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(current); - if (!name) { return; } - - name = name[1]; - nameLC = name.toLowerCase(); - if (nameLC === 'url') { - return null; - } - - i += name.length; - - if (nameLC === 'alpha') { - alpha_ret = parsers.alpha(); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $char('('); // Parse the '(' and consume whitespace. - - args = this.arguments(); - - if (! $char(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (true) { - arg = this.assignment() || parsers.expression(); - if (!arg) { - break; - } - args.push(arg); - if (! $char(',')) { - break; - } - } - return args; - }, - literal: function () { - return this.dimension() || - this.color() || - this.quoted() || - this.unicodeDescriptor(); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - key = $re(/^\w+(?=\s?=)/i); - if (!key) { - return; - } - if (!$char('=')) { - return; - } - value = parsers.entity(); - if (value) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$re(/^url\(/)) { - return; - } - - value = this.quoted() || this.variable() || - $re(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expectChar(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $re(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var curly, index = i; - - if (input.charAt(i) === '@' && (curly = $re(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $re(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - var colorCandidateString = rgb.input.match(/^#([\w]+).*/); // strip colons, brackets, whitespaces and other characters that should not definitely be part of color string - colorCandidateString = colorCandidateString[1]; - if (!colorCandidateString.match(/^[A-Fa-f0-9]+$/)) { // verify if candidate consists only of allowed HEX characters - error("Invalid HEX color code"); - } - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) { - return; - } - - value = $re(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/); - if (value) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - ud = $re(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/); - if (ud) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '`') { return; } - if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) { - error("You are using JavaScript, which has been disabled."); - } - - if (e) { $char('~'); } - - str = $re(/^`([^`]*)`/); - if (str) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*:/))) { return name[1]; } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink(); - // - rulesetCall: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*\(\s*\)\s*;/))) { - return new tree.RulesetCall(name[1]); - } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList, extend; - - if (!(isRule ? $re(/^&:extend\(/) : $re(/^:extend\(/))) { return; } - - do { - option = null; - elements = null; - while (! (option = $re(/^(all)(?=\s*(\)|,))/))) { - e = this.element(); - if (!e) { break; } - if (elements) { elements.push(e); } else { elements = [ e ]; } - } - - option = option && option[1]; - - extend = new(tree.Extend)(new(tree.Selector)(elements), option, index); - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - - } while($char(",")); - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var s = input.charAt(i), important = false, index = i, elemIndex, - elements, elem, e, c, args; - - if (s !== '.' && s !== '#') { return; } - - save(); // stop us absorbing part of an invalid selector - - while (true) { - elemIndex = i; - e = $re(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/); - if (!e) { - break; - } - elem = new(tree.Element)(c, e, elemIndex, env.currentFileInfo); - if (elements) { elements.push(elem); } else { elements = [ elem ]; } - c = $char('>'); - } - - if (elements) { - if ($char('(')) { - args = this.args(true).args; - expectChar(')'); - } - - if (parsers.important()) { - important = true; - } - - if (parsers.end()) { - forget(); - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - } - - restore(); - }, - args: function (isCall) { - var parsers = parser.parsers, entities = parsers.entities, - returner = { args:null, variadic: false }, - expressions = [], argsSemiColon = [], argsComma = [], - isSemiColonSeperated, expressionContainsNamed, name, nameLoop, value, arg; - - save(); - - while (true) { - if (isCall) { - arg = parsers.detachedRuleset() || parsers.expression(); - } else { - parsers.comments(); - if (input.charAt(i) === '.' && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = entities.variable() || entities.literal() || entities.keyword(); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value && arg.value.length == 1) { - val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($char(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - - // we do not support setting a ruleset as a default variable - it doesn't make sense - // However if we do want to add it, there is nothing blocking it, just don't error - // and remove isCall dependency below - value = (isCall && parsers.detachedRuleset()) || parsers.expression(); - - if (!value) { - if (isCall) { - error("could not understand value for named argument"); - } else { - restore(); - returner.args = []; - return returner; - } - } - nameLoop = (name = val.name); - } else if (!isCall && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($char(',')) { - continue; - } - - if ($char(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - forget(); - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) { - return; - } - - save(); - - match = $re(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/); - if (match) { - name = match[1]; - - var argInfo = this.args(false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. - // also - // .mixincall(@a: {rule: set;}); - // so we have to be nice and restore - if (!$char(')')) { - furthest = i; - restore(); - return; - } - - parsers.comments(); - - if ($re(/^when/)) { // Guard - cond = expect(parsers.conditions, 'expected condition'); - } - - ruleset = parsers.block(); - - if (ruleset) { - forget(); - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } else { - forget(); - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - var entities = this.entities; - - return entities.literal() || entities.variable() || entities.url() || - entities.call() || entities.keyword() || entities.javascript() || - this.comment(); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $char(';') || peekChar('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $re(/^\(opacity=/i)) { return; } - value = $re(/^\d+/) || this.entities.variable(); - if (value) { - expectChar(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, c, v, index = i; - - c = this.combinator(); - - e = $re(/^(?:\d+\.\d+|\d+)%/) || $re(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $char('*') || $char('&') || this.attribute() || $re(/^\([^()@]+\)/) || $re(/^[\.#](?=@)/) || - this.entities.variableCurly(); - - if (! e) { - save(); - if ($char('(')) { - if ((v = this.selector()) && $char(')')) { - e = new(tree.Paren)(v); - forget(); - } else { - restore(); - } - } else { - forget(); - } - } - - if (e) { return new(tree.Element)(c, e, index, env.currentFileInfo); } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|' || c === '^') { - i++; - if (input.charAt(i) === '^') { - c = '^^'; - i++; - } - while (isWhitespace(input, i)) { i++; } - return new(tree.Combinator)(c); - } else if (isWhitespace(input, i - 1)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - // - // A CSS selector (see selector below) - // with less extensions e.g. the ability to extend and guard - // - lessSelector: function () { - return this.selector(true); - }, - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function (isLess) { - var index = i, $re = _$re, elements, extendList, c, e, extend, when, condition; - - while ((isLess && (extend = this.extend())) || (isLess && (when = $re(/^when/))) || (e = this.element())) { - if (when) { - condition = expect(this.conditions, 'expected condition'); - } else if (condition) { - error("CSS guard can only be used at the end of selector"); - } else if (extend) { - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - } else { - if (extendList) { error("Extend can only be used at the end of selector"); } - c = input.charAt(i); - if (elements) { elements.push(e); } else { elements = [ e ]; } - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { - break; - } - } - - if (elements) { return new(tree.Selector)(elements, extendList, condition, index, env.currentFileInfo); } - if (extendList) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - if (! $char('[')) { return; } - - var entities = this.entities, - key, val, op; - - if (!(key = entities.variableCurly())) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - op = $re(/^[|~*$^]?=/); - if (op) { - val = entities.quoted() || $re(/^[0-9]+%/) || $re(/^[\w-]+/) || entities.variableCurly(); - } - - expectChar(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($char('{') && (content = this.primary()) && $char('}')) { - return content; - } - }, - - blockRuleset: function() { - var block = this.block(); - - if (block) { - block = new tree.Ruleset(null, block); - } - return block; - }, - - detachedRuleset: function() { - var blockRuleset = this.blockRuleset(); - if (blockRuleset) { - return new tree.DetachedRuleset(blockRuleset); - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors, s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - while (true) { - s = this.lessSelector(); - if (!s) { - break; - } - if (selectors) { selectors.push(s); } else { selectors = [ s ]; } - this.comments(); - if (s.condition && selectors.length > 1) { - error("Guards are only currently allowed on a single selector."); - } - if (! $char(',')) { break; } - if (s.condition) { - error("Guards are only currently allowed on a single selector."); - } - this.comments(); - } - - if (selectors && (rules = this.block())) { - forget(); - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) { - ruleset.debugInfo = debugInfo; - } - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, startOfRule = i, c = input.charAt(startOfRule), important, merge, isVariable; - - if (c === '.' || c === '#' || c === '&') { return; } - - save(); - - name = this.variable() || this.ruleProperty(); - if (name) { - isVariable = typeof name === "string"; - - if (isVariable) { - value = this.detachedRuleset(); - } - - if (!value) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || isVariable) ? - (this.value() || this.anonymousValue()) : - (this.anonymousValue() || this.value()); - - important = this.important(); - - // a name returned by this.ruleProperty() is always an array of the form: - // [string-1, ..., string-n, ""] or [string-1, ..., string-n, "+"] - // where each item is a tree.Keyword or tree.Variable - merge = !isVariable && name.pop().value; - } - - if (value && this.end()) { - forget(); - return new (tree.Rule)(name, value, important, merge, startOfRule, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } else { - forget(); - } - }, - anonymousValue: function () { - var match; - match = /^([^@+\/'"*`(;{}-]*);/.exec(current); - if (match) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $re(/^@import?\s+/); - - var options = (dir ? this.importOptions() : null) || {}; - - if (dir && (path = this.entities.quoted() || this.entities.url())) { - features = this.mediaFeatures(); - if ($char(';')) { - forget(); - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $char('(')) { return null; } - do { - o = this.importOption(); - if (o) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $char(',')) { break; } - } - } while (o); - expectChar(')'); - return options; - }, - - importOption: function() { - var opt = $re(/^(less|css|multiple|once|inline|reference)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var entities = this.entities, nodes = [], e, p; - do { - e = entities.keyword() || entities.variable(); - if (e) { - nodes.push(e); - } else if ($char('(')) { - p = this.property(); - e = this.value(); - if ($char(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null; } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var entities = this.entities, features = [], e; - do { - e = this.mediaFeature(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } else { - e = entities.variable(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - if ($re(/^@media/)) { - features = this.mediaFeatures(); - - rules = this.block(); - if (rules) { - media = new(tree.Media)(rules, features, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - media.debugInfo = debugInfo; - } - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var index = i, name, value, rules, nonVendorSpecificName, - hasIdentifier, hasExpression, hasUnknown, hasBlock = true; - - if (input.charAt(i) !== '@') { return; } - - value = this['import']() || this.media(); - if (value) { - return value; - } - - save(); - - name = $re(/^@[a-z-]+/); - - if (!name) { return; } - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - /* - case "@font-face": - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - */ - case "@charset": - hasIdentifier = true; - hasBlock = false; - break; - case "@namespace": - hasExpression = true; - hasBlock = false; - break; - case "@keyframes": - hasIdentifier = true; - break; - case "@host": - case "@page": - case "@document": - case "@supports": - hasUnknown = true; - break; - } - - if (hasIdentifier) { - value = this.entity(); - if (!value) { - error("expected " + name + " identifier"); - } - } else if (hasExpression) { - value = this.expression(); - if (!value) { - error("expected " + name + " expression"); - } - } else if (hasUnknown) { - value = ($re(/^[^{;]+/) || '').trim(); - if (value) { - value = new(tree.Anonymous)(value); - } - } - - if (hasBlock) { - rules = this.blockRuleset(); - } - - if (rules || (!hasBlock && value && $char(';'))) { - forget(); - return new(tree.Directive)(name, value, rules, index, env.currentFileInfo, - env.dumpLineNumbers ? getDebugInfo(index, input, env) : null); - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = []; - - do { - e = this.expression(); - if (e) { - expressions.push(e); - if (! $char(',')) { break; } - } - } while(e); - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $re(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($char('(')) { - a = this.addition(); - if (a) { - e = new(tree.Expression)([a]); - expectChar(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced; - m = this.operand(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - if (peek(/^\/[*\/]/)) { - break; - } - op = $char('/') || $char('*'); - - if (!op) { break; } - - a = this.operand(); - - if (!a) { break; } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - m = this.multiplication(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - op = $re(/^[-+]\s+/) || (!isSpaced && ($char('+') || $char('-'))); - if (!op) { - break; - } - a = this.multiplication(); - if (!a) { - break; - } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - a = this.condition(); - if (a) { - while (true) { - if (!peek(/^,\s*(not\s*)?\(/) || !$char(',')) { - break; - } - b = this.condition(); - if (!b) { - break; - } - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var entities = this.entities, index = i, negate = false, - a, b, c, op; - - if ($re(/^not/)) { negate = true; } - expectChar('('); - a = this.addition() || entities.keyword() || entities.quoted(); - if (a) { - op = $re(/^(?:>=|<=|=<|[<=>])/); - if (op) { - b = this.addition() || entities.keyword() || entities.quoted(); - if (b) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expectChar(')'); - return $re(/^and/) ? new(tree.Condition)('and', c, this.condition()) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var entities = this.entities, - p = input.charAt(i + 1), negate; - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $char('-'); } - var o = this.sub() || entities.dimension() || - entities.color() || entities.variable() || - entities.call(); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var entities = [], e, delim; - - do { - e = this.addition() || this.entity(); - if (e) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/)) { - delim = $char('/'); - if (delim) { - entities.push(new(tree.Anonymous)(delim)); - } - } - } - } while (e); - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name = $re(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/); - if (name) { - return name[1]; - } - }, - ruleProperty: function () { - var c = current, name = [], index = [], length = 0, s, k; - - function match(re) { - var a = re.exec(c); - if (a) { - index.push(i + length); - length += a[0].length; - c = c.slice(a[1].length); - return name.push(a[1]); - } - } - - match(/^(\*?)/); - while (match(/^((?:[\w-]+)|(?:@\{[\w-]+\}))/)); // ! - if ((name.length > 1) && match(/^\s*((?:\+_|\+)?)\s*:/)) { - // at last, we have the complete match now. move forward, - // convert name particles to tree objects and return: - skipWhitespace(length); - if (name[0] === '') { - name.shift(); - index.shift(); - } - for (k = 0; k < name.length; k++) { - s = name[k]; - name[k] = (s.charAt(0) !== '@') - ? new(tree.Keyword)(s) - : new(tree.Variable)('@' + s.slice(2, -1), - index[k], env.currentFileInfo); - } - return name; - } - } - } - }; - return parser; -}; -less.Parser.serializeVars = function(vars) { - var s = ''; - - for (var name in vars) { - if (Object.hasOwnProperty.call(vars, name)) { - var value = vars[name]; - s += ((name[0] === '@') ? '' : '@') + name +': '+ value + - ((('' + value).slice(-1) === ';') ? '' : ';'); - } - } - - return s; -}; - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 255); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; } - else if (h * 2 < 1) { return m2; } - else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; } - else { return m1; } - } - - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - luminance: function (color) { - var luminance = - (0.2126 * color.rgb[0] / 255) - + (0.7152 * color.rgb[1] / 255) - + (0.0722 * color.rgb[2] / 255); - - return new(tree.Dimension)(Math.round(luminance * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - // filter: saturate(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if (color.luma() < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str.value); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - replace: function (string, pattern, replacement, flags) { - var result = string.value; - - result = result.replace(new RegExp(pattern.value, flags ? flags.value : ''), replacement.value); - return new(tree.Quoted)(string.quote || '', result, string.escaped); - }, - '%': function (string /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - result = string.value; - - for (var i = 0; i < args.length; i++) { - /*jshint loopfunc:true */ - result = result.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - result = result.replace(/%%/g, '%'); - return new(tree.Quoted)(string.quote || '', result, string.escaped); - }, - unit: function (val, unit) { - if(!(val instanceof tree.Dimension)) { - throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") }; - } - if (unit) { - if (unit instanceof tree.Keyword) { - unit = unit.value; - } else { - unit = unit.toCSS(); - } - } else { - unit = ""; - } - return new(tree.Dimension)(val.value, unit); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return _math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _minmax: function (isMin, args) { - args = Array.prototype.slice.call(args); - switch(args.length) { - case 0: throw { type: "Argument", message: "one or more arguments required" }; - } - var i, j, current, currentUnified, referenceUnified, unit, unitStatic, unitClone, - order = [], // elems only contains original argument values. - values = {}; // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - for (i = 0; i < args.length; i++) { - current = args[i]; - if (!(current instanceof tree.Dimension)) { - if(Array.isArray(args[i].value)) { - Array.prototype.push.apply(args, Array.prototype.slice.call(args[i].value)); - } - continue; - } - currentUnified = current.unit.toString() === "" && unitClone !== undefined ? new(tree.Dimension)(current.value, unitClone).unify() : current.unify(); - unit = currentUnified.unit.toString() === "" && unitStatic !== undefined ? unitStatic : currentUnified.unit.toString(); - unitStatic = unit !== "" && unitStatic === undefined || unit !== "" && order[0].unify().unit.toString() === "" ? unit : unitStatic; - unitClone = unit !== "" && unitClone === undefined ? current.unit.toString() : unitClone; - j = values[""] !== undefined && unit !== "" && unit === unitStatic ? values[""] : values[unit]; - if (j === undefined) { - if(unitStatic !== undefined && unit !== unitStatic) { - throw{ type: "Argument", message: "incompatible types" }; - } - values[unit] = order.length; - order.push(current); - continue; - } - referenceUnified = order[j].unit.toString() === "" && unitClone !== undefined ? new(tree.Dimension)(order[j].value, unitClone).unify() : order[j].unify(); - if ( isMin && currentUnified.value < referenceUnified.value || - !isMin && currentUnified.value > referenceUnified.value) { - order[j] = current; - } - } - if (order.length == 1) { - return order[0]; - } - args = order.map(function (a) { return a.toCSS(this.env); }).join(this.env.compress ? "," : ", "); - return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")"); - }, - min: function () { - return this._minmax(true, arguments); - }, - max: function () { - return this._minmax(false, arguments); - }, - "get-unit": function (n) { - return new(tree.Anonymous)(n.unit); - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - var colorCandidate = n.value, - returnColor; - returnColor = tree.Color.fromKeyword(colorCandidate); - if (returnColor) { - return returnColor; - } - if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) { - return new(tree.Color)(colorCandidate.slice(1)); - } - throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" }; - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - return Array.isArray(values.value) - ? values.value[index] : Array(values)[index]; - }, - length: function(values) { - var n = Array.isArray(values.value) ? values.value.length : 1; - return new tree.Dimension(n); - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require('./fs'), - path = require('path'), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) { mimetype += ';base64'; } - } - else { - useBase64 = /;base64$/.test(mimetype); - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "\"data:" + mimetype + ',' + buf + "\""; - return new(tree.URL)(new(tree.Anonymous)(uri)); - }, - - "svg-gradient": function(direction) { - - function throwArgumentDescriptor() { - throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" }; - } - - if (arguments.length < 3) { - throwArgumentDescriptor(); - } - var stops = Array.prototype.slice.call(arguments, 1), - gradientDirectionSvg, - gradientType = "linear", - rectangleDimension = 'x="0" y="0" width="1" height="1"', - useBase64 = true, - renderEnv = {compress: false}, - returner, - directionValue = direction.toCSS(renderEnv), - i, color, position, positionValue, alpha; - - switch (directionValue) { - case "to bottom": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - gradientType = "radial"; - gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" }; - } - returner = '' + - '' + - '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>'; - - for (i = 0; i < stops.length; i+= 1) { - if (stops[i].value) { - color = stops[i].value[0]; - position = stops[i].value[1]; - } else { - color = stops[i]; - position = undefined; - } - - if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) { - throwArgumentDescriptor(); - } - positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%"; - alpha = color.alpha; - returner += ''; - } - returner += '' + - ''; - - if (useBase64) { - try { - returner = require('./encoder').encodeBase64(returner); // TODO browser implementation - } catch(e) { - useBase64 = false; - } - } - - returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'"; - return new(tree.URL)(new(tree.Anonymous)(returner)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -// Math - -var mathFunctions = { - // name, unit - ceil: null, - floor: null, - sqrt: null, - abs: null, - tan: "", - sin: "", - cos: "", - atan: "rad", - asin: "rad", - acos: "rad" -}; - -function _math(fn, unit, n) { - if (!(n instanceof tree.Dimension)) { - throw { type: "Argument", message: "argument must be a number" }; - } - if (unit == null) { - unit = n.unit; - } else { - n = n.unify(); - } - return new(tree.Dimension)(fn(parseFloat(n.value)), unit); -} - -// ~ End of Math - -// Color Blending -// ref: http://www.w3.org/TR/compositing-1 - -function colorBlend(mode, color1, color2) { - var ab = color1.alpha, cb, // backdrop - as = color2.alpha, cs, // source - ar, cr, r = []; // result - - ar = as + ab * (1 - as); - for (var i = 0; i < 3; i++) { - cb = color1.rgb[i] / 255; - cs = color2.rgb[i] / 255; - cr = mode(cb, cs); - if (ar) { - cr = (as * cs + ab * (cb - - as * (cb + cs - cr))) / ar; - } - r[i] = cr * 255; - } - - return new(tree.Color)(r, ar); -} - -var colorBlendMode = { - multiply: function(cb, cs) { - return cb * cs; - }, - screen: function(cb, cs) { - return cb + cs - cb * cs; - }, - overlay: function(cb, cs) { - cb *= 2; - return (cb <= 1) - ? colorBlendMode.multiply(cb, cs) - : colorBlendMode.screen(cb - 1, cs); - }, - softlight: function(cb, cs) { - var d = 1, e = cb; - if (cs > 0.5) { - e = 1; - d = (cb > 0.25) ? Math.sqrt(cb) - : ((16 * cb - 12) * cb + 4) * cb; - } - return cb - (1 - 2 * cs) * e * (d - cb); - }, - hardlight: function(cb, cs) { - return colorBlendMode.overlay(cs, cb); - }, - difference: function(cb, cs) { - return Math.abs(cb - cs); - }, - exclusion: function(cb, cs) { - return cb + cs - 2 * cb * cs; - }, - - // non-w3c functions: - average: function(cb, cs) { - return (cb + cs) / 2; - }, - negation: function(cb, cs) { - return 1 - Math.abs(cb + cs - 1); - } -}; - -// ~ End of Color Blending - -tree.defaultFunc = { - eval: function () { - var v = this.value_, e = this.error_; - if (e) { - throw e; - } - if (v != null) { - return v ? tree.True : tree.False; - } - }, - value: function (v) { - this.value_ = v; - }, - error: function (e) { - this.error_ = e; - }, - reset: function () { - this.value_ = this.error_ = null; - } -}; - -function initFunctions() { - var f, tf = tree.functions; - - // math - for (f in mathFunctions) { - if (mathFunctions.hasOwnProperty(f)) { - tf[f] = _math.bind(null, Math[f], mathFunctions[f]); - } - } - - // color blending - for (f in colorBlendMode) { - if (colorBlendMode.hasOwnProperty(f)) { - tf[f] = colorBlend.bind(null, colorBlendMode[f]); - } - } - - // default - f = tree.defaultFunc; - tf["default"] = f.eval.bind(f); - -} initFunctions(); - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.fround = function(env, value) { - var p = env && env.numPrecision; - //add "epsilon" to ensure numbers like 1.000000005 (represented as 1.000000004999....) are properly rounded... - return (p == null) ? value : Number((value + 2e-16).toFixed(p)); -}; - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); - -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); - -(function (tree) { - -tree.debugInfo = function(env, ctx, lineSeperator) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:\/\\])/g, function (a) { - if (a == '\\') { - a = '\/'; - } - return '\\' + a; - }) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - r = fun.call(obj, obj[i]); - if (r) { return r; } - } - return null; -}; - -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false); }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -tree.toCSS = function (env) { - var strs = []; - this.genCSS(env, { - add: function(chunk, fileInfo, index) { - strs.push(chunk); - }, - isEmpty: function () { - return strs.length === 0; - } - }); - return strs.join(''); -}; - -tree.outputRuleset = function (env, output, rules) { - var ruleCnt = rules.length, i; - env.tabLevel = (env.tabLevel | 0) + 1; - - // Compressed - if (env.compress) { - output.add('{'); - for (i = 0; i < ruleCnt; i++) { - rules[i].genCSS(env, output); - } - output.add('}'); - env.tabLevel--; - return; - } - - // Non-compressed - var tabSetStr = '\n' + Array(env.tabLevel).join(" "), tabRuleStr = tabSetStr + " "; - if (!ruleCnt) { - output.add(" {" + tabSetStr + '}'); - } else { - output.add(" {" + tabRuleStr); - rules[0].genCSS(env, output); - for (i = 1; i < ruleCnt; i++) { - output.add(tabRuleStr); - rules[i].genCSS(env, output); - } - output.add(tabSetStr + '}'); - } - - env.tabLevel--; -}; - -})(require('./tree')); - -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } - return this; - }, - genCSS: function (env, output) { - output.add("alpha(opacity="); - - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - - output.add(")"); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Anonymous = function (value, index, currentFileInfo, mapLines) { - this.value = value; - this.index = index; - this.mapLines = mapLines; - this.currentFileInfo = currentFileInfo; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - eval: function () { - return new tree.Anonymous(this.value, this.index, this.currentFileInfo, this.mapLines); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - }, - genCSS: function (env, output) { - output.add(this.value, this.currentFileInfo, this.index, this.mapLines); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - }, - genCSS: function (env, output) { - output.add(this.key + '='); - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - if (this.args) { - this.args = visitor.visitArray(this.args); - } - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - return new tree.Call(this.name, args, this.index, this.currentFileInfo); - }, - - genCSS: function (env, output) { - output.add(this.name + "(", this.currentFileInfo, this.index); - - for(var i = 0; i < this.args.length; i++) { - this.args[i].genCSS(env, output); - if (i + 1 < this.args.length) { - output.add(", "); - } - } - - output.add(")"); - }, - - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; - -var transparentKeyword = "transparent"; - -tree.Color.prototype = { - type: "Color", - eval: function () { return this; }, - luma: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255; - - r = (r <= 0.03928) ? r / 12.92 : Math.pow(((r + 0.055) / 1.055), 2.4); - g = (g <= 0.03928) ? g / 12.92 : Math.pow(((g + 0.055) / 1.055), 2.4); - b = (b <= 0.03928) ? b / 12.92 : Math.pow(((b + 0.055) / 1.055), 2.4); - - return 0.2126 * r + 0.7152 * g + 0.0722 * b; - }, - - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress, - alpha = tree.fround(env, this.alpha); - - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - if (alpha < 1) { - if (alpha === 0 && this.isTransparentKeyword) { - return transparentKeyword; - } - return "rgba(" + this.rgb.map(function (c) { - return clamp(Math.round(c), 255); - }).concat(clamp(alpha, 1)) - .join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.toRGB(); - - if (compress) { - var splitcolor = color.split(''); - - // Convert color to short format - if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) { - color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5]; - } - } - - return color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var rgb = []; - var alpha = this.alpha * (1 - other.alpha) + other.alpha; - for (var c = 0; c < 3; c++) { - rgb[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(rgb, alpha); - }, - - toRGB: function () { - return toHex(this.rgb); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - return toHex([this.alpha * 255].concat(this.rgb)); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - -tree.Color.fromKeyword = function(keyword) { - keyword = keyword.toLowerCase(); - - if (tree.colors.hasOwnProperty(keyword)) { - // detect named color - return new(tree.Color)(tree.colors[keyword].slice(1)); - } - if (keyword === transparentKeyword) { - var transparent = new(tree.Color)([0, 0, 0], 0); - transparent.isTransparentKeyword = true; - return transparent; - } -}; - -function toHex(v) { - return '#' + v.map(function (c) { - c = clamp(Math.round(c), 255); - return (c < 16 ? '0' : '') + c.toString(16); - }).join(''); -} - -function clamp(v, max) { - return Math.min(Math.max(v, 0), max); -} - -})(require('../tree')); - -(function (tree) { - -tree.Comment = function (value, silent, index, currentFileInfo) { - this.value = value; - this.silent = !!silent; - this.currentFileInfo = currentFileInfo; -}; -tree.Comment.prototype = { - type: "Comment", - genCSS: function (env, output) { - if (this.debugInfo) { - output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index); - } - output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n - }, - toCSS: tree.toCSS, - isSilent: function(env) { - var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced), - isCompressed = env.compress && !this.value.match(/^\/\*!/); - return this.silent || isReference || isCompressed; - }, - eval: function () { return this; }, - markReferenced: function () { - this.isReferenced = true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<' || op === '<='; - case 0: return op === '=' || op === '>=' || op === '=<' || op === '<='; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.DetachedRuleset = function (ruleset, frames) { - this.ruleset = ruleset; - this.frames = frames; -}; -tree.DetachedRuleset.prototype = { - type: "DetachedRuleset", - accept: function (visitor) { - this.ruleset = visitor.visit(this.ruleset); - }, - eval: function (env) { - var frames = this.frames || env.frames.slice(0); - return new tree.DetachedRuleset(this.ruleset, frames); - }, - callEval: function (env) { - return this.ruleset.eval(this.frames ? new(tree.evalEnv)(env, this.frames.concat(env.frames)) : env); - } -}; -})(require('../tree')); - -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - genCSS: function (env, output) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = tree.fround(env, this.value), - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && this.unit.isLength()) { - output.add(strValue); - return; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - output.add(strValue); - this.unit.genCSS(env, output); - }, - toCSS: tree.toCSS, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - /*jshint noempty:false */ - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a, b, - aValue, bValue; - - if (this.unit.isEmpty() || other.unit.isEmpty()) { - a = this; - b = other; - } else { - a = this.unify(); - b = other.unify(); - if (a.unit.compare(b.unit) !== 0) { - return -1; - } - } - aValue = a.value; - bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'px', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, targetUnit, derivedConversions = {}, applyUnit; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - applyUnit = function (atomicUnit, denominator) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(applyUnit); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'px': 0.0254 / 96, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - genCSS: function (env, output) { - if (this.numerator.length >= 1) { - output.add(this.numerator[0]); - } else - if (this.denominator.length >= 1) { - output.add(this.denominator[0]); - } else - if ((!env || !env.strictUnits) && this.backupUnit) { - output.add(this.backupUnit); - } - }, - toCSS: tree.toCSS, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isLength: function () { - return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/)); - }, - - isEmpty: function () { - return this.numerator.length === 0 && this.denominator.length === 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length === 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, result = {}, mapUnit; - - mapUnit = function (atomicUnit) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }; - - for (var groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(mapUnit); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Directive = function (name, value, rules, index, currentFileInfo, debugInfo) { - this.name = name; - this.value = value; - if (rules) { - this.rules = rules; - this.rules.allowImports = true; - } - this.index = index; - this.currentFileInfo = currentFileInfo; - this.debugInfo = debugInfo; -}; - -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - var value = this.value, rules = this.rules; - if (rules) { - rules = visitor.visit(rules); - } - if (value) { - value = visitor.visit(value); - } - }, - genCSS: function (env, output) { - var value = this.value, rules = this.rules; - output.add(this.name, this.currentFileInfo, this.index); - if (value) { - output.add(' '); - value.genCSS(env, output); - } - if (rules) { - tree.outputRuleset(env, output, [rules]); - } else { - output.add(';'); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var value = this.value, rules = this.rules; - if (value) { - value = value.eval(env); - } - if (rules) { - rules = rules.eval(env); - rules.root = true; - } - return new(tree.Directive)(this.name, value, rules, - this.index, this.currentFileInfo, this.debugInfo); - }, - variable: function (name) { if (this.rules) return tree.Ruleset.prototype.variable.call(this.rules, name); }, - find: function () { if (this.rules) return tree.Ruleset.prototype.find.apply(this.rules, arguments); }, - rulesets: function () { if (this.rules) return tree.Ruleset.prototype.rulesets.apply(this.rules); }, - markReferenced: function () { - var i, rules; - this.isReferenced = true; - if (this.rules) { - rules = this.rules.rules; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Element = function (combinator, value, index, currentFileInfo) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - var value = this.value; - this.combinator = visitor.visit(this.combinator); - if (typeof value === "object") { - this.value = visitor.visit(value); - } - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index, - this.currentFileInfo); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env), this.currentFileInfo, this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value === '' && this.combinator.value.charAt(0) === '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - _outputMap: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : ' + ', - '~' : ' ~ ', - '>' : ' > ', - '|' : '|', - '^' : ' ^ ', - '^^' : ' ^^ ' - }, - _outputMapCompressed: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : '+', - '~' : '~', - '>' : '>', - '|' : '|', - '^' : '^', - '^^' : '^^' - }, - genCSS: function (env, output) { - output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - genCSS: function (env, output) { - for(var i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i + 1 < this.value.length) { - output.add(" "); - } - } - }, - toCSS: tree.toCSS, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - this.object_id = tree.Extend.next_id++; - this.parent_ids = [this.object_id]; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; -tree.Extend.next_id = 0; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i, - selectorElements; - - for(i = 0; i < selectors.length; i++) { - selectorElements = selectors[i].elements; - // duplicate the logic in genCSS function inside the selector node. - // future TODO - move both logics into the selector joiner visitor - if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") { - selectorElements[0].combinator.value = ' '; - } - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); - -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined || this.options.inline) { - this.css = !this.options.less || this.options.inline; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - this.path = visitor.visit(this.path); - if (!this.options.inline && this.root) { - this.root = visitor.visit(this.root); - } - }, - genCSS: function (env, output) { - if (this.css) { - output.add("@import ", this.currentFileInfo, this.index); - this.path.genCSS(env, output); - if (this.features) { - output.add(" "); - this.features.genCSS(env, output); - } - output.add(';'); - } - }, - toCSS: tree.toCSS, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - - if (!(path instanceof tree.URL)) { - if (rootpath) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath +pathValue; - } - } - path.value = env.normalizePath(path.value); - } - - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { - if (typeof this.skip === "function") { - this.skip = this.skip(); - } - if (this.skip) { - return []; - } - } - - if (this.options.inline) { - //todo needs to reference css file not import - var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true); - return this.features ? new(tree.Media)([contents], this.features.value) : [contents]; - } else if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" , - index: this.index }; - } - - var variables = env.frames[0].variables(); - for (var k in variables) { - if (variables.hasOwnProperty(k)) { - /*jshint loopfunc:true */ - context[k.slice(1)] = { - value: variables[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message.replace(/["]/g, "'") + "'" , - index: this.index }; - } - if (typeof(result) === 'number') { - return new(tree.Dimension)(result); - } else if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Keyword = function (value) { this.value = value; }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - genCSS: function (env, output) { - if (this.value === '%') { throw { type: "Syntax", message: "Invalid % without number" }; } - output.add(this.value); - }, - toCSS: tree.toCSS, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); - -(function (tree) { - -tree.Media = function (value, features, index, currentFileInfo) { - this.index = index; - this.currentFileInfo = currentFileInfo; - - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.rules = [new(tree.Ruleset)(selectors, value)]; - this.rules[0].allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - }, - genCSS: function (env, output) { - output.add('@media ', this.currentFileInfo, this.index); - this.features.genCSS(env, output); - tree.outputRuleset(env, output, this.rules); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)(null, [], this.index, this.currentFileInfo); - if(this.debugInfo) { - this.rules[0].debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.rules[0]); - media.rules = [this.rules[0].eval(env)]; - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env); - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', this.index, this.currentFileInfo), - sels = [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)]; - sels[0].mediaEmpty = true; - return sels; - }, - markReferenced: function () { - var i, rules = this.rules[0].rules; - this.rules[0].markReferenced(); - this.isReferenced = true; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - if (!selectors) - return; - this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])]; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = (args && args.length) ? args : null; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - if (this.selector) { - this.selector = visitor.visit(this.selector); - } - if (this.arguments) { - this.arguments = visitor.visitArray(this.arguments); - } - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule, - candidates = [], candidate, conditionResult = [], defaultFunc = tree.defaultFunc, - defaultResult, defNone = 0, defTrue = 1, defFalse = 2, count, originalRuleset; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - - // To make `default()` function independent of definition order we have two "subpasses" here. - // At first we evaluate each guard *twice* (with `default() == true` and `default() == false`), - // and build candidate list with corresponding flags. Then, when we know all possible matches, - // we make a final decision. - - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - - if (mixin.matchArgs(args, env)) { - candidate = {mixin: mixin, group: defNone}; - - if (mixin.matchCondition) { - for (f = 0; f < 2; f++) { - defaultFunc.value(f); - conditionResult[f] = mixin.matchCondition(args, env); - } - if (conditionResult[0] || conditionResult[1]) { - if (conditionResult[0] != conditionResult[1]) { - candidate.group = conditionResult[1] ? - defTrue : defFalse; - } - - candidates.push(candidate); - } - } - else { - candidates.push(candidate); - } - - match = true; - } - } - - defaultFunc.reset(); - - count = [0, 0, 0]; - for (m = 0; m < candidates.length; m++) { - count[candidates[m].group]++; - } - - if (count[defNone] > 0) { - defaultResult = defFalse; - } else { - defaultResult = defTrue; - if ((count[defTrue] + count[defFalse]) > 1) { - throw { type: 'Runtime', - message: 'Ambiguous use of `default()` found when matching for `' - + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - for (m = 0; m < candidates.length; m++) { - candidate = candidates[m].group; - if ((candidate === defNone) || (candidate === defaultResult)) { - try { - mixin = candidates[m].mixin; - if (!(mixin instanceof tree.mixin.Definition)) { - originalRuleset = mixin.originalRuleset || mixin; - mixin = new tree.mixin.Definition("", [], mixin.rules, null, false); - mixin.originalRuleset = originalRuleset; - } - Array.prototype.push.apply( - rules, mixin.evalCall(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - } - - if (match) { - if (!this.currentFileInfo || !this.currentFileInfo.reference) { - for (i = 0; i < rules.length; i++) { - rule = rules[i]; - if (rule.markReferenced) { - rule.markReferenced(); - } - } - } - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - }, - format: function (args) { - return this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")"; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic, frames) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1; } - else { return count; } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = frames; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - if (this.params && this.params.length) { - this.params = visitor.visitArray(this.params); - } - this.rules = visitor.visitArray(this.rules); - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - /*jshint boss:true */ - var frame = new(tree.Ruleset)(null, null), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex, argsLength = 0; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - argsLength = args.length; - - for(i = 0; i < argsLength; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.prependRule(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) { continue; } - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic) { - varargs = []; - for (j = argIndex; j < argsLength; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.prependRule(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + argsLength + ' for ' + this.arity + ')' }; - } - - frame.prependRule(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < argsLength; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env) { - return new tree.mixin.Definition(this.name, this.params, this.rules, this.condition, this.variadic, this.frames || env.frames.slice(0)); - }, - evalCall: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames ? this.frames.concat(env.frames) : env.frames, - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - rules, ruleset; - - frame.prependRule(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules); - ruleset.originalRuleset = this; - ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames))); - if (important) { - ruleset = this.parent.makeImportant.apply(ruleset); - } - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames ? this.frames.concat(env.frames) : env.frames), args, [])] // the parameter variables - .concat(this.frames) // the parent namespace/mixin frames - .concat(env.frames)))) { // the current environment frames - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (! this.variadic) { - if (argsLength < this.required) { return false; } - if (argsLength > this.params.length) { return false; } - } else { - if (argsLength < (this.required - 1)) { return false; } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('-'); - this.value.genCSS(env, output); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env); - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - a = a.toColor(); - } - if (b instanceof tree.Dimension && a instanceof tree.Color) { - b = b.toColor(); - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - genCSS: function (env, output) { - this.operands[0].genCSS(env, output); - if (this.isSpaced) { - output.add(" "); - } - output.add(this.op); - if (this.isSpaced) { - output.add(" "); - } - this.operands[1].genCSS(env, output); - }, - toCSS: tree.toCSS -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('('); - this.value.genCSS(env, output); - output.add(')'); - }, - toCSS: tree.toCSS, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - genCSS: function (env, output) { - if (!this.escaped) { - output.add(this.quote, this.currentFileInfo, this.index); - } - output.add(this.value); - if (!this.escaped) { - output.add(this.quote); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left, right; - - // when comparing quoted strings allow the quote to differ - if (x.type === "Quoted" && !this.escaped && !x.escaped) { - left = x.value; - right = this.value; - } else { - left = this.toCSS(); - right = x.toCSS(); - } - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value || value instanceof tree.Ruleset) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.merge = merge; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - this.variable = name.charAt && (name.charAt(0) === '@'); -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index); - try { - this.value.genCSS(env, output); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index); - }, - toCSS: tree.toCSS, - eval: function (env) { - var strictMathBypass = false, name = this.name, evaldValue; - if (typeof name !== "string") { - // expand 'primitive' name directly to get - // things faster (~10% for benchmark.less): - name = (name.length === 1) - && (name[0] instanceof tree.Keyword) - ? name[0].value : evalName(env, name); - } - if (name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - evaldValue = this.value.eval(env); - - if (!this.variable && evaldValue.type === "DetachedRuleset") { - throw { message: "Rulesets cannot be evaluated on a property.", - index: this.index, filename: this.currentFileInfo.filename }; - } - - return new(tree.Rule)(name, - evaldValue, - this.important, - this.merge, - this.index, this.currentFileInfo, this.inline); - } - catch(e) { - if (typeof e.index !== 'number') { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - } - throw e; - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.merge, - this.index, this.currentFileInfo, this.inline); - } -}; - -function evalName(env, name) { - var value = "", i, n = name.length, - output = {add: function (s) {value += s;}}; - for (i = 0; i < n; i++) { - name[i].eval(env).genCSS(env, output); - } - return value; -} - -})(require('../tree')); - -(function (tree) { - -tree.RulesetCall = function (variable) { - this.variable = variable; -}; -tree.RulesetCall.prototype = { - type: "RulesetCall", - accept: function (visitor) { - }, - eval: function (env) { - var detachedRuleset = new(tree.Variable)(this.variable).eval(env); - return detachedRuleset.callEval(env); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - if (this.paths) { - visitor.visitArray(this.paths, true); - } else if (this.selectors) { - this.selectors = visitor.visitArray(this.selectors); - } - if (this.rules && this.rules.length) { - this.rules = visitor.visitArray(this.rules); - } - }, - eval: function (env) { - var thisSelectors = this.selectors, selectors, - selCnt, selector, i, defaultFunc = tree.defaultFunc, hasOnePassingSelector = false; - - if (thisSelectors && (selCnt = thisSelectors.length)) { - selectors = []; - defaultFunc.error({ - type: "Syntax", - message: "it is currently only allowed in parametric mixin guards," - }); - for (i = 0; i < selCnt; i++) { - selector = thisSelectors[i].eval(env); - selectors.push(selector); - if (selector.evaldCondition) { - hasOnePassingSelector = true; - } - } - defaultFunc.reset(); - } else { - hasOnePassingSelector = true; - } - - var rules = this.rules ? this.rules.slice(0) : null, - ruleset = new(tree.Ruleset)(selectors, rules, this.strictImports), - rule, subRule; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - if (!hasOnePassingSelector) { - rules.length = 0; - } - - // push the current ruleset to the frames stack - var envFrames = env.frames; - envFrames.unshift(ruleset); - - // currrent selectors - var envSelectors = env.selectors; - if (!envSelectors) { - env.selectors = envSelectors = []; - } - envSelectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - var rsRules = ruleset.rules, rsRuleCnt = rsRules ? rsRules.length : 0; - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Definition || rsRules[i] instanceof tree.DetachedRuleset) { - rsRules[i] = rsRules[i].eval(env); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Call) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } else if (rsRules[i] instanceof tree.RulesetCall) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).rules.filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope at all - return false; - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (i = 0; i < rsRules.length; i++) { - rule = rsRules[i]; - if (! (rule instanceof tree.mixin.Definition || rule instanceof tree.DetachedRuleset)) { - rsRules[i] = rule = rule.eval ? rule.eval(env) : rule; - } - } - - // Evaluate everything else - for (i = 0; i < rsRules.length; i++) { - rule = rsRules[i]; - // for rulesets, check if it is a css guard and can be removed - if (rule instanceof tree.Ruleset && rule.selectors && rule.selectors.length === 1) { - // check if it can be folded in (e.g. & where) - if (rule.selectors[0].isJustParentSelector()) { - rsRules.splice(i--, 1); - - for(var j = 0; j < rule.rules.length; j++) { - subRule = rule.rules[j]; - if (!(subRule instanceof tree.Rule) || !subRule.variable) { - rsRules.splice(++i, 0, subRule); - } - } - } - } - } - - // Pop the stack - envFrames.shift(); - envSelectors.shift(); - - if (env.mediaBlocks) { - for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var rules = this.rules, i, importRules; - if (!rules) { return; } - - for (i = 0; i < rules.length; i++) { - if (rules[i] instanceof tree.Import) { - importRules = rules[i].eval(env); - if (importRules && importRules.length) { - rules.splice.apply(rules, [i, 1].concat(importRules)); - i+= importRules.length-1; - } else { - rules.splice(i, 1, importRules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - // lets you call a css selector with a guard - matchCondition: function (args, env) { - var lastSelector = this.selectors[this.selectors.length-1]; - if (!lastSelector.evaldCondition) { - return false; - } - if (lastSelector.condition && - !lastSelector.condition.eval( - new(tree.evalEnv)(env, - env.frames))) { - return false; - } - return true; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (!this._variables) { - this._variables = !this.rules ? {} : this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - return this._variables; - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (!this.rules) { return null; } - - var _Ruleset = tree.Ruleset, _MixinDefinition = tree.mixin.Definition, - filtRules = [], rules = this.rules, cnt = rules.length, - i, rule; - - for (i = 0; i < cnt; i++) { - rule = rules[i]; - if ((rule instanceof _Ruleset) || (rule instanceof _MixinDefinition)) { - filtRules.push(rule); - } - } - - return filtRules; - }, - prependRule: function (rule) { - var rules = this.rules; - if (rules) { rules.unshift(rule); } else { this.rules = [ rule ]; } - }, - find: function (selector, self) { - self = self || this; - var rules = [], match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key]; } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - match = selector.match(rule.selectors[j]); - if (match) { - if (selector.elements.length > match) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(match)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - this._lookups[key] = rules; - return rules; - }, - genCSS: function (env, output) { - var i, j, - ruleNodes = [], - rulesetNodes = [], - rulesetNodeCnt, - debugInfo, // Line number debugging - rule, - path; - - env.tabLevel = (env.tabLevel || 0); - - if (!this.root) { - env.tabLevel++; - } - - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "), - sep; - - for (i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - if (rule.rules || (rule instanceof tree.Media) || rule instanceof tree.Directive || (this.root && rule instanceof tree.Comment)) { - rulesetNodes.push(rule); - } else { - ruleNodes.push(rule); - } - } - - // If this is the root node, we don't render - // a selector, or {}. - if (!this.root) { - debugInfo = tree.debugInfo(env, this, tabSetStr); - - if (debugInfo) { - output.add(debugInfo); - output.add(tabSetStr); - } - - var paths = this.paths, pathCnt = paths.length, - pathSubCnt; - - sep = env.compress ? ',' : (',\n' + tabSetStr); - - for (i = 0; i < pathCnt; i++) { - path = paths[i]; - if (!(pathSubCnt = path.length)) { continue; } - if (i > 0) { output.add(sep); } - - env.firstSelector = true; - path[0].genCSS(env, output); - - env.firstSelector = false; - for (j = 1; j < pathSubCnt; j++) { - path[j].genCSS(env, output); - } - } - - output.add((env.compress ? '{' : ' {\n') + tabRuleStr); - } - - // Compile rules and rulesets - for (i = 0; i < ruleNodes.length; i++) { - rule = ruleNodes[i]; - - // @page{ directive ends up with root elements inside it, a mix of rules and rulesets - // In this instance we do not know whether it is the last property - if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) { - env.lastRule = true; - } - - if (rule.genCSS) { - rule.genCSS(env, output); - } else if (rule.value) { - output.add(rule.value.toString()); - } - - if (!env.lastRule) { - output.add(env.compress ? '' : ('\n' + tabRuleStr)); - } else { - env.lastRule = false; - } - } - - if (!this.root) { - output.add((env.compress ? '}' : '\n' + tabSetStr + '}')); - env.tabLevel--; - } - - sep = (env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr); - rulesetNodeCnt = rulesetNodes.length; - if (rulesetNodeCnt) { - if (ruleNodes.length && sep) { output.add(sep); } - rulesetNodes[0].genCSS(env, output); - for (i = 1; i < rulesetNodeCnt; i++) { - if (sep) { output.add(sep); } - rulesetNodes[i].genCSS(env, output); - } - } - - if (!output.isEmpty() && !env.compress && this.firstRoot) { - output.add('\n'); - } - }, - - toCSS: tree.toCSS, - - markReferenced: function () { - if (!this.selectors) { - return; - } - for (var s = 0; s < this.selectors.length; s++) { - this.selectors[s].markReferenced(); - } - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for (i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for (j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length === 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', el.index, el.currentFileInfo)); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for (k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = selector.createDerived([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for (i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length === 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for (i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); - -(function (tree) { - -tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) { - this.elements = elements; - this.extendList = extendList; - this.condition = condition; - this.currentFileInfo = currentFileInfo || {}; - this.isReferenced = isReferenced; - if (!condition) { - this.evaldCondition = true; - } -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - if (this.elements) { - this.elements = visitor.visitArray(this.elements); - } - if (this.extendList) { - this.extendList = visitor.visitArray(this.extendList); - } - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - createDerived: function(elements, extendList, evaldCondition) { - evaldCondition = (evaldCondition != null) ? evaldCondition : this.evaldCondition; - var newSelector = new(tree.Selector)(elements, extendList || this.extendList, null, this.index, this.currentFileInfo, this.isReferenced); - newSelector.evaldCondition = evaldCondition; - newSelector.mediaEmpty = this.mediaEmpty; - return newSelector; - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - olen, i; - - other.CacheElements(); - - olen = other._elements.length; - if (olen === 0 || len < olen) { - return 0; - } else { - for (i = 0; i < olen; i++) { - if (elements[i].value !== other._elements[i]) { - return 0; - } - } - } - - return olen; // return number of matched elements - }, - CacheElements: function(){ - var css = '', len, v, i; - - if( !this._elements ){ - - len = this.elements.length; - for(i = 0; i < len; i++){ - - v = this.elements[i]; - css += v.combinator.value; - - if( !v.value.value ){ - css += v.value; - continue; - } - - if( typeof v.value.value !== "string" ){ - css = ''; - break; - } - css += v.value.value; - } - - this._elements = css.match(/[,&#\.\w-]([\w-]|(\\.))*/g); - - if (this._elements) { - if (this._elements[0] === "&") { - this._elements.shift(); - } - - } else { - this._elements = []; - } - - } - }, - isJustParentSelector: function() { - return !this.mediaEmpty && - this.elements.length === 1 && - this.elements[0].value === '&' && - (this.elements[0].combinator.value === ' ' || this.elements[0].combinator.value === ''); - }, - eval: function (env) { - var evaldCondition = this.condition && this.condition.eval(env), - elements = this.elements, extendList = this.extendList; - - elements = elements && elements.map(function (e) { return e.eval(env); }); - extendList = extendList && extendList.map(function(extend) { return extend.eval(env); }); - - return this.createDerived(elements, extendList, evaldCondition); - }, - genCSS: function (env, output) { - var i, element; - if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") { - output.add(' ', this.currentFileInfo, this.index); - } - if (!this._css) { - //TODO caching? speed comparison? - for(i = 0; i < this.elements.length; i++) { - element = this.elements[i]; - element.genCSS(env, output); - } - } - }, - toCSS: tree.toCSS, - markReferenced: function () { - this.isReferenced = true; - }, - getIsReferenced: function() { - return !this.currentFileInfo.reference || this.isReferenced; - }, - getIsOutput: function() { - return this.evaldCondition; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - eval: function () { return this; } -}; - -})(require('../tree')); - -(function (tree) { - -tree.URL = function (val, currentFileInfo, isEvald) { - this.value = val; - this.currentFileInfo = currentFileInfo; - this.isEvald = isEvald; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add("url("); - this.value.genCSS(env, output); - output.add(")"); - }, - toCSS: tree.toCSS, - eval: function (ctx) { - var val = this.value.eval(ctx), - rootpath; - - if (!this.isEvald) { - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - val.value = ctx.normalizePath(val.value); - - // Add url args if enabled - if (ctx.urlArgs) { - if (!val.value.match(/^\s*data:/)) { - var delimiter = val.value.indexOf('?') === -1 ? '?' : '&'; - var urlArgs = delimiter + ctx.urlArgs; - if (val.value.indexOf('#') !== -1) { - val.value = val.value.replace('#', urlArgs + '#'); - } else { - val.value += urlArgs; - } - } - } - } - - return new(tree.URL)(val, this.currentFileInfo, true); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - genCSS: function (env, output) { - var i; - for(i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i+1 < this.value.length) { - output.add((env && env.compress) ? ',' : ', '); - } - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { - this.name = name; - this.index = index; - this.currentFileInfo = currentFileInfo || {}; -}; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, name = this.name; - - if (name.indexOf('@@') === 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - variable = tree.find(env.frames, function (frame) { - var v = frame.variable(name); - if (v) { - return v.value.eval(env); - } - }); - if (variable) { - this.evaluating = false; - return variable; - } else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); - -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // map - filename to contents of all the files - 'contentsIgnoredChars', // map - filename to lines at the begining of each file to ignore - 'relativeUrls', // option - whether to adjust URL's to be relative - 'rootpath', // option - rootpath to append to URL's - 'strictImports', // option - - 'insecure', // option - whether to allow imports from insecure ssl hosts - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true - 'mime', // browser only - mime type for sheet import - 'useFileCache', // browser only - whether to use the per file session cache - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' - absolute path to the entry file - // 'reference' - whether the file should not be output and only output parts that are referenced - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.contentsIgnoredChars) { this.contentsIgnoredChars = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits', // whether units need to evaluate correctly - 'cleancss', // whether to compress with clean-css - 'sourceMap', // whether to output a source map - 'importMultiple', // whether we are currently importing multiple copies - 'urlArgs' // whether to add args into url tokens - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - tree.evalEnv.prototype.normalizePath = function( path ) { - var - segments = path.split("/").reverse(), - segment; - - path = []; - while (segments.length !== 0 ) { - segment = segments.pop(); - switch( segment ) { - case ".": - break; - case "..": - if ((path.length === 0) || (path[path.length - 1] === "..")) { - path.push( segment ); - } else { - path.pop(); - } - break; - default: - path.push( segment ); - break; - } - } - - return path.join("/"); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - }; - -})(require('./tree')); - -(function (tree) { - - var _visitArgs = { visitDeeper: true }, - _hasIndexed = false; - - function _noop(node) { - return node; - } - - function indexNodeTypes(parent, ticker) { - // add .typeIndex to tree node types for lookup table - var key, child; - for (key in parent) { - if (parent.hasOwnProperty(key)) { - child = parent[key]; - switch (typeof child) { - case "function": - // ignore bound functions directly on tree which do not have a prototype - // or aren't nodes - if (child.prototype && child.prototype.type) { - child.prototype.typeIndex = ticker++; - } - break; - case "object": - ticker = indexNodeTypes(child, ticker); - break; - } - } - } - return ticker; - } - - tree.visitor = function(implementation) { - this._implementation = implementation; - this._visitFnCache = []; - - if (!_hasIndexed) { - indexNodeTypes(tree, 1); - _hasIndexed = true; - } - }; - - tree.visitor.prototype = { - visit: function(node) { - if (!node) { - return node; - } - - var nodeTypeIndex = node.typeIndex; - if (!nodeTypeIndex) { - return node; - } - - var visitFnCache = this._visitFnCache, - impl = this._implementation, - aryIndx = nodeTypeIndex << 1, - outAryIndex = aryIndx | 1, - func = visitFnCache[aryIndx], - funcOut = visitFnCache[outAryIndex], - visitArgs = _visitArgs, - fnName; - - visitArgs.visitDeeper = true; - - if (!func) { - fnName = "visit" + node.type; - func = impl[fnName] || _noop; - funcOut = impl[fnName + "Out"] || _noop; - visitFnCache[aryIndx] = func; - visitFnCache[outAryIndex] = funcOut; - } - - if (func !== _noop) { - var newNode = func.call(impl, node, visitArgs); - if (impl.isReplacing) { - node = newNode; - } - } - - if (visitArgs.visitDeeper && node && node.accept) { - node.accept(this); - } - - if (funcOut != _noop) { - funcOut.call(impl, node); - } - - return node; - }, - visitArray: function(nodes, nonReplacing) { - if (!nodes) { - return nodes; - } - - var cnt = nodes.length, i; - - // Non-replacing - if (nonReplacing || !this._implementation.isReplacing) { - for (i = 0; i < cnt; i++) { - this.visit(nodes[i]); - } - return nodes; - } - - // Replacing - var out = []; - for (i = 0; i < cnt; i++) { - var evald = this.visit(nodes[i]); - if (!evald.splice) { - out.push(evald); - } else if (evald.length) { - this.flatten(evald, out); - } - } - return out; - }, - flatten: function(arr, out) { - if (!out) { - out = []; - } - - var cnt, i, item, - nestedCnt, j, nestedItem; - - for (i = 0, cnt = arr.length; i < cnt; i++) { - item = arr[i]; - if (!item.splice) { - out.push(item); - continue; - } - - for (j = 0, nestedCnt = item.length; j < nestedCnt; j++) { - nestedItem = item[j]; - if (!nestedItem.splice) { - out.push(nestedItem); - } else if (nestedItem.length) { - this.flatten(nestedItem, out); - } - } - } - - return out; - } - }; - -})(require('./tree')); -(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv, onceFileDetectionMap, recursionDetector) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - this.onceFileDetectionMap = onceFileDetectionMap || {}; - this.recursionDetector = {}; - if (recursionDetector) { - for(var fullFilename in recursionDetector) { - if (recursionDetector.hasOwnProperty(fullFilename)) { - this.recursionDetector[fullFilename] = true; - } - } - } - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode, - inlineCSS = importNode.options.inline; - - if (!importNode.css || inlineCSS) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - - if (importNode.options.multiple) { - env.importMultiple = true; - } - - this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, importedAtRoot, fullPath) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - - if (!env.importMultiple) { - if (importedAtRoot) { - importNode.skip = true; - } else { - importNode.skip = function() { - if (fullPath in importVisitor.onceFileDetectionMap) { - return true; - } - importVisitor.onceFileDetectionMap[fullPath] = true; - return false; - }; - } - } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - importNode.importedFilename = fullPath; - var duplicateImport = importedAtRoot || fullPath in importVisitor.recursionDetector; - - if (!inlineCSS && (env.importMultiple || !duplicateImport)) { - importVisitor.recursionDetector[fullPath] = true; - new(tree.importVisitor)(importVisitor._importer, subFinish, env, importVisitor.onceFileDetectionMap, importVisitor.recursionDetector) - .run(root); - return; - } - } - - subFinish(); - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree')); -(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1], - paths = [], selectors; - - this.contexts.push(paths); - - if (! rulesetNode.root) { - selectors = rulesetNode.selectors; - if (selectors) { - selectors = selectors.filter(function(selector) { return selector.getIsOutput(); }); - rulesetNode.selectors = selectors.length ? selectors : (selectors = null); - if (selectors) { rulesetNode.joinSelectors(paths, context, selectors); } - } - if (!selectors) { rulesetNode.rules = null; } - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree')); -(function (tree) { - tree.toCSSVisitor = function(env) { - this._visitor = new tree.visitor(this); - this._env = env; - }; - - tree.toCSSVisitor.prototype = { - isReplacing: true, - run: function (root) { - return this._visitor.visit(root); - }, - - visitRule: function (ruleNode, visitArgs) { - if (ruleNode.variable) { - return []; - } - return ruleNode; - }, - - visitMixinDefinition: function (mixinNode, visitArgs) { - // mixin definitions do not get eval'd - this means they keep state - // so we have to clear that state here so it isn't used if toCSS is called twice - mixinNode.frames = []; - return []; - }, - - visitExtend: function (extendNode, visitArgs) { - return []; - }, - - visitComment: function (commentNode, visitArgs) { - if (commentNode.isSilent(this._env)) { - return []; - } - return commentNode; - }, - - visitMedia: function(mediaNode, visitArgs) { - mediaNode.accept(this._visitor); - visitArgs.visitDeeper = false; - - if (!mediaNode.rules.length) { - return []; - } - return mediaNode; - }, - - visitDirective: function(directiveNode, visitArgs) { - if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) { - return []; - } - if (directiveNode.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (this.charset) { - if (directiveNode.debugInfo) { - var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n"); - comment.debugInfo = directiveNode.debugInfo; - return this._visitor.visit(comment); - } - return []; - } - this.charset = true; - } - return directiveNode; - }, - - checkPropertiesInRoot: function(rules) { - var ruleNode; - for(var i = 0; i < rules.length; i++) { - ruleNode = rules[i]; - if (ruleNode instanceof tree.Rule && !ruleNode.variable) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null}; - } - } - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var rule, rulesets = []; - if (rulesetNode.firstRoot) { - this.checkPropertiesInRoot(rulesetNode.rules); - } - if (! rulesetNode.root) { - if (rulesetNode.paths) { - rulesetNode.paths = rulesetNode.paths - .filter(function(p) { - var i; - if (p[0].elements[0].combinator.value === ' ') { - p[0].elements[0].combinator = new(tree.Combinator)(''); - } - for(i = 0; i < p.length; i++) { - if (p[i].getIsReferenced() && p[i].getIsOutput()) { - return true; - } - } - return false; - }); - } - - // Compile rules and rulesets - var nodeRules = rulesetNode.rules, nodeRuleCnt = nodeRules ? nodeRules.length : 0; - for (var i = 0; i < nodeRuleCnt; ) { - rule = nodeRules[i]; - if (rule && rule.rules) { - // visit because we are moving them out from being a child - rulesets.push(this._visitor.visit(rule)); - nodeRules.splice(i, 1); - nodeRuleCnt--; - continue; - } - i++; - } - // accept the visitor to remove rules and refactor itself - // then we can decide now whether we want it or not - if (nodeRuleCnt > 0) { - rulesetNode.accept(this._visitor); - } else { - rulesetNode.rules = null; - } - visitArgs.visitDeeper = false; - - nodeRules = rulesetNode.rules; - if (nodeRules) { - this._mergeRules(nodeRules); - nodeRules = rulesetNode.rules; - } - if (nodeRules) { - this._removeDuplicateRules(nodeRules); - nodeRules = rulesetNode.rules; - } - - // now decide whether we keep the ruleset - if (nodeRules && nodeRules.length > 0 && rulesetNode.paths.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } else { - rulesetNode.accept(this._visitor); - visitArgs.visitDeeper = false; - if (rulesetNode.firstRoot || (rulesetNode.rules && rulesetNode.rules.length > 0)) { - rulesets.splice(0, 0, rulesetNode); - } - } - if (rulesets.length === 1) { - return rulesets[0]; - } - return rulesets; - }, - - _removeDuplicateRules: function(rules) { - if (!rules) { return; } - - // remove duplicates - var ruleCache = {}, - ruleList, rule, i; - - for(i = rules.length - 1; i >= 0 ; i--) { - rule = rules[i]; - if (rule instanceof tree.Rule) { - if (!ruleCache[rule.name]) { - ruleCache[rule.name] = rule; - } else { - ruleList = ruleCache[rule.name]; - if (ruleList instanceof tree.Rule) { - ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)]; - } - var ruleCSS = rule.toCSS(this._env); - if (ruleList.indexOf(ruleCSS) !== -1) { - rules.splice(i, 1); - } else { - ruleList.push(ruleCSS); - } - } - } - } - }, - - _mergeRules: function (rules) { - if (!rules) { return; } - - var groups = {}, - parts, - rule, - key; - - for (var i = 0; i < rules.length; i++) { - rule = rules[i]; - - if ((rule instanceof tree.Rule) && rule.merge) { - key = [rule.name, - rule.important ? "!" : ""].join(","); - - if (!groups[key]) { - groups[key] = []; - } else { - rules.splice(i--, 1); - } - - groups[key].push(rule); - } - } - - Object.keys(groups).map(function (k) { - - function toExpression(values) { - return new (tree.Expression)(values.map(function (p) { - return p.value; - })); - } - - function toValue(values) { - return new (tree.Value)(values.map(function (p) { - return p; - })); - } - - parts = groups[k]; - - if (parts.length > 1) { - rule = parts[0]; - var spacedGroups = []; - var lastSpacedGroup = []; - parts.map(function (p) { - if (p.merge==="+") { - if (lastSpacedGroup.length > 0) { - spacedGroups.push(toExpression(lastSpacedGroup)); - } - lastSpacedGroup = []; - } - lastSpacedGroup.push(p); - }); - spacedGroups.push(toExpression(lastSpacedGroup)); - rule.value = toValue(spacedGroups); - } - }); - } - }; - -})(require('./tree')); -(function (tree) { - /*jshint loopfunc:true */ - - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - var rules = rulesetNode.rules, ruleCnt = rules ? rules.length : 0; - for(i = 0; i < ruleCnt; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rules[i]); - rulesetNode.extendOnEveryPath = true; - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - var paths = rulesetNode.paths; - for(i = 0; i < paths.length; i++) { - var selectorPath = paths[i], - selector = selectorPath[selectorPath.length - 1], - selExtendList = selector.extendList; - - extendList = selExtendList ? selExtendList.slice(0).concat(allSelectorsExtendList) - : allSelectorsExtendList; - - if (extendList) { - extendList = extendList.map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - } - - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if( extend.parent_ids.indexOf( targetExtend.object_id ) >= 0 ){ continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parent_ids = newExtend.parent_ids.concat(targetExtend.parent_ids, extend.parent_ids); - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (rulesetNode.extendOnEveryPath) { continue; } - var extendList = selectorPath[selectorPath.length-1].extendList; - if (extendList && extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator === '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - elementValue1 = elementValue1.value; - elementValue2 = elementValue2.value; - if (elementValue1 instanceof tree.Selector) { - if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) { - return false; - } - for(var i = 0; i currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - newElements = selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)); - - if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) { - path[path.length - 1].elements = - path[path.length - 1].elements.concat(newElements); - } else { - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - newElements - )); - } - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.sourceMapOutput = function (options) { - this._css = []; - this._rootNode = options.rootNode; - this._writeSourceMap = options.writeSourceMap; - this._contentsMap = options.contentsMap; - this._contentsIgnoredCharsMap = options.contentsIgnoredCharsMap; - this._sourceMapFilename = options.sourceMapFilename; - this._outputFilename = options.outputFilename; - this._sourceMapURL = options.sourceMapURL; - if (options.sourceMapBasepath) { - this._sourceMapBasepath = options.sourceMapBasepath.replace(/\\/g, '/'); - } - this._sourceMapRootpath = options.sourceMapRootpath; - this._outputSourceFiles = options.outputSourceFiles; - this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator; - - if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') { - this._sourceMapRootpath += '/'; - } - - this._lineNumber = 0; - this._column = 0; - }; - - tree.sourceMapOutput.prototype.normalizeFilename = function(filename) { - filename = filename.replace(/\\/g, '/'); - - if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) { - filename = filename.substring(this._sourceMapBasepath.length); - if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') { - filename = filename.substring(1); - } - } - return (this._sourceMapRootpath || "") + filename; - }; - - tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) { - - //ignore adding empty strings - if (!chunk) { - return; - } - - var lines, - sourceLines, - columns, - sourceColumns, - i; - - if (fileInfo) { - var inputSource = this._contentsMap[fileInfo.filename]; - - // remove vars/banner added to the top of the file - if (this._contentsIgnoredCharsMap[fileInfo.filename]) { - // adjust the index - index -= this._contentsIgnoredCharsMap[fileInfo.filename]; - if (index < 0) { index = 0; } - // adjust the source - inputSource = inputSource.slice(this._contentsIgnoredCharsMap[fileInfo.filename]); - } - inputSource = inputSource.substring(0, index); - sourceLines = inputSource.split("\n"); - sourceColumns = sourceLines[sourceLines.length-1]; - } - - lines = chunk.split("\n"); - columns = lines[lines.length-1]; - - if (fileInfo) { - if (!mapLines) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column}, - original: { line: sourceLines.length, column: sourceColumns.length}, - source: this.normalizeFilename(fileInfo.filename)}); - } else { - for(i = 0; i < lines.length; i++) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0}, - original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0}, - source: this.normalizeFilename(fileInfo.filename)}); - } - } - } - - if (lines.length === 1) { - this._column += columns.length; - } else { - this._lineNumber += lines.length - 1; - this._column = columns.length; - } - - this._css.push(chunk); - }; - - tree.sourceMapOutput.prototype.isEmpty = function() { - return this._css.length === 0; - }; - - tree.sourceMapOutput.prototype.toCSS = function(env) { - this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null }); - - if (this._outputSourceFiles) { - for(var filename in this._contentsMap) { - if (this._contentsMap.hasOwnProperty(filename)) - { - var source = this._contentsMap[filename]; - if (this._contentsIgnoredCharsMap[filename]) { - source = source.slice(this._contentsIgnoredCharsMap[filename]); - } - this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), source); - } - } - } - - this._rootNode.genCSS(env, this); - - if (this._css.length > 0) { - var sourceMapURL, - sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); - - if (this._sourceMapURL) { - sourceMapURL = this._sourceMapURL; - } else if (this._sourceMapFilename) { - sourceMapURL = this.normalizeFilename(this._sourceMapFilename); - } - - if (this._writeSourceMap) { - this._writeSourceMap(sourceMapContent); - } else { - sourceMapURL = "data:application/json," + encodeURIComponent(sourceMapContent); - } - - if (sourceMapURL) { - this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */"); - } - } - - return this._css.join(''); - }; - -})(require('./tree')); - -// -// browser.js - client-side engine -// -/*global less, window, document, XMLHttpRequest, location */ - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - (location.port && - location.port.length > 0) || - isFileProtocol ? 'development' - : 'production'); - -var logLevel = { - debug: 3, - info: 2, - errors: 1, - none: 0 -}; - -// The amount of logging in the javascript console. -// 3 - Debug, information and errors -// 2 - Information and errors -// 1 - Errors -// 0 - None -// Defaults to 2 -less.logLevel = typeof(less.logLevel) != 'undefined' ? less.logLevel : (less.env === 'development' ? logLevel.debug : logLevel.errors); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - if (less.functions.hasOwnProperty(func)) { - less.tree.functions[func] = less.functions[func]; - } - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -var typePattern = /^text\/(x-)?less$/; -var cache = null; -var fileCache = {}; - -function log(str, level) { - if (typeof(console) !== 'undefined' && less.logLevel >= level) { - console.log('less: ' + str); - } -} - -function extractId(href) { - return href.replace(/^[a-z-]+:\/+?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function errorConsole(e, rootHref) { - var template = '{line} {content}'; - var filename = e.filename || rootHref; - var errors = []; - var content = (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - " in " + filename + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n' + - errors.join('\n'); - } else if (e.stack) { - content += e.stack; - } - log(content, logLevel.errors); -} - -function createCSS(styles, sheet, lastModified) { - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If this has already been inserted into the DOM, we may need to replace it - var oldCss = document.getElementById(id); - var keepOldCss = false; - - // Create a new stylesheet node for insertion or (if necessary) replacement - var css = document.createElement('style'); - css.setAttribute('type', 'text/css'); - if (sheet.media) { - css.setAttribute('media', sheet.media); - } - css.id = id; - - if (!css.styleSheet) { - css.appendChild(document.createTextNode(styles)); - - // If new contents match contents of oldCss, don't replace oldCss - keepOldCss = (oldCss !== null && oldCss.childNodes.length > 0 && css.childNodes.length > 0 && - oldCss.firstChild.nodeValue === css.firstChild.nodeValue); - } - - var head = document.getElementsByTagName('head')[0]; - - // If there is no oldCss, just append; otherwise, only append if we need - // to replace oldCss with an updated stylesheet - if (oldCss === null || keepOldCss === false) { - var nextEl = sheet && sheet.nextSibling || null; - if (nextEl) { - nextEl.parentNode.insertBefore(css, nextEl); - } else { - head.appendChild(css); - } - } - if (oldCss && keepOldCss === false) { - oldCss.parentNode.removeChild(oldCss); - } - - // For IE. - // This needs to happen *after* the style element is added to the DOM, otherwise IE 7 and 8 may crash. - // See http://social.msdn.microsoft.com/Forums/en-US/7e081b65-878a-4c22-8e68-c10d39c2ed32/internet-explorer-crashes-appending-style-element-to-head - if (css.styleSheet) { - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.', logLevel.info); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save', logLevel.errors); - } - } -} - -function postProcessCSS(styles) { - if (less.postProcessor && typeof less.postProcessor === 'function') { - styles = less.postProcessor.call(styles, styles) || styles; - } - return styles; -} - -function errorHTML(e, rootHref) { - var id = 'less-error-message:' + extractId(rootHref || ""); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, errors = []; - var filename = e.filename || rootHref; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - '

    ' + '

    in ' + filenameNoPath + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - '
      ' + errors.join('') + '
    '; - } else if (e.stack) { - content += '
    ' + e.stack.split('\n').slice(1).join('
    '); - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #dd6666;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.line {', - 'color: #ff0000;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); - - if (less.env == 'development') { - timer = setInterval(function () { - if (document.body) { - if (document.getElementById(id)) { - document.body.replaceChild(elem, document.getElementById(id)); - } else { - document.body.insertBefore(elem, document.body.firstChild); - } - clearInterval(timer); - } - }, 10); - } -} - -function error(e, rootHref) { - if (!less.errorReporting || less.errorReporting === "html") { - errorHTML(e, rootHref); - } else if (less.errorReporting === "console") { - errorConsole(e, rootHref); - } else if (typeof less.errorReporting === 'function') { - less.errorReporting("add", e, rootHref); - } -} - -function removeErrorHTML(path) { - var node = document.getElementById('less-error-message:' + extractId(path)); - if (node) { - node.parentNode.removeChild(node); - } -} - -function removeErrorConsole(path) { - //no action -} - -function removeError(path) { - if (!less.errorReporting || less.errorReporting === "html") { - removeErrorHTML(path); - } else if (less.errorReporting === "console") { - removeErrorConsole(path); - } else if (typeof less.errorReporting === 'function') { - less.errorReporting("remove", path); - } -} - -function loadStyles(modifyVars) { - var styles = document.getElementsByTagName('style'), - style; - for (var i = 0; i < styles.length; i++) { - style = styles[i]; - if (style.type.match(typePattern)) { - var env = new less.tree.parseEnv(less), - lessText = style.innerHTML || ''; - env.filename = document.location.href.replace(/#.*$/, ''); - - if (modifyVars || less.globalVars) { - env.useFileCache = true; - } - - /*jshint loopfunc:true */ - // use closure to store current value of i - var callback = (function(style) { - return function (e, cssAST) { - if (e) { - return error(e, "inline"); - } - var css = cssAST.toCSS(less); - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }; - })(style); - new(less.Parser)(env).parse(lessText, callback, {globalVars: less.globalVars, modifyVars: modifyVars}); - } - } -} - -function extractUrlParts(url, baseUrl) { - // urlParts[1] = protocol&hostname || / - // urlParts[2] = / if path relative to host base - // urlParts[3] = directories - // urlParts[4] = filename - // urlParts[5] = parameters - - var urlPartsRegex = /^((?:[a-z-]+:)?\/+?(?:[^\/\?#]*\/)|([\/\\]))?((?:[^\/\\\?#]*[\/\\])*)([^\/\\\?#]*)([#\?].*)?$/i, - urlParts = url.match(urlPartsRegex), - returner = {}, directories = [], i, baseUrlParts; - - if (!urlParts) { - throw new Error("Could not parse sheet href - '"+url+"'"); - } - - // Stylesheets in IE don't always return the full path - if (!urlParts[1] || urlParts[2]) { - baseUrlParts = baseUrl.match(urlPartsRegex); - if (!baseUrlParts) { - throw new Error("Could not parse page url - '"+baseUrl+"'"); - } - urlParts[1] = urlParts[1] || baseUrlParts[1] || ""; - if (!urlParts[2]) { - urlParts[3] = baseUrlParts[3] + urlParts[3]; - } - } - - if (urlParts[3]) { - directories = urlParts[3].replace(/\\/g, "/").split("/"); - - // extract out . before .. so .. doesn't absorb a non-directory - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".") { - directories.splice(i, 1); - i -= 1; - } - } - - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".." && i > 0) { - directories.splice(i-1, 2); - i -= 2; - } - } - } - - returner.hostPart = urlParts[1]; - returner.directories = directories; - returner.path = urlParts[1] + directories.join("/"); - returner.fileUrl = returner.path + (urlParts[4] || ""); - returner.url = returner.fileUrl + (urlParts[5] || ""); - return returner; -} - -function pathDiff(url, baseUrl) { - // diff between two paths to create a relative path - - var urlParts = extractUrlParts(url), - baseUrlParts = extractUrlParts(baseUrl), - i, max, urlDirectories, baseUrlDirectories, diff = ""; - if (urlParts.hostPart !== baseUrlParts.hostPart) { - return ""; - } - max = Math.max(baseUrlParts.directories.length, urlParts.directories.length); - for(i = 0; i < max; i++) { - if (baseUrlParts.directories[i] !== urlParts.directories[i]) { break; } - } - baseUrlDirectories = baseUrlParts.directories.slice(i); - urlDirectories = urlParts.directories.slice(i); - for(i = 0; i < baseUrlDirectories.length-1; i++) { - diff += "../"; - } - for(i = 0; i < urlDirectories.length-1; i++) { - diff += urlDirectories[i] + "/"; - } - return diff; -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest && (window.location.protocol !== "file:" || !("ActiveXObject" in window))) { - return new XMLHttpRequest(); - } else { - try { - /*global ActiveXObject */ - return new ActiveXObject("Microsoft.XMLHTTP"); - } catch (e) { - log("browser doesn't support AJAX.", logLevel.errors); - return null; - } - } -} - -function doXHR(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? less.fileAsync : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - log("XHR: Getting '" + url + "'", logLevel.debug); - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } - - if (isFileProtocol && !less.fileAsync) { - if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } -} - -function loadFile(originalHref, currentFileInfo, callback, env, modifyVars) { - - if (currentFileInfo && currentFileInfo.currentDirectory && !/^([a-z-]+:)?\//.test(originalHref)) { - originalHref = currentFileInfo.currentDirectory + originalHref; - } - - // sheet may be set to the stylesheet for the initial load or a collection of properties including - // some env variables for imports - var hrefParts = extractUrlParts(originalHref, window.location.href); - var href = hrefParts.url; - var newFileInfo = { - currentDirectory: hrefParts.path, - filename: href - }; - - if (currentFileInfo) { - newFileInfo.entryPath = currentFileInfo.entryPath; - newFileInfo.rootpath = currentFileInfo.rootpath; - newFileInfo.rootFilename = currentFileInfo.rootFilename; - newFileInfo.relativeUrls = currentFileInfo.relativeUrls; - } else { - newFileInfo.entryPath = hrefParts.path; - newFileInfo.rootpath = less.rootpath || hrefParts.path; - newFileInfo.rootFilename = href; - newFileInfo.relativeUrls = env.relativeUrls; - } - - if (newFileInfo.relativeUrls) { - if (env.rootpath) { - newFileInfo.rootpath = extractUrlParts(env.rootpath + pathDiff(hrefParts.path, newFileInfo.entryPath)).path; - } else { - newFileInfo.rootpath = hrefParts.path; - } - } - - if (env.useFileCache && fileCache[href]) { - try { - var lessText = fileCache[href]; - callback(null, lessText, href, newFileInfo, { lastModified: new Date() }); - } catch (e) { - callback(e, null, href); - } - return; - } - - doXHR(href, env.mime, function (data, lastModified) { - // per file cache - fileCache[href] = data; - - // Use remote copy (re-parse) - try { - callback(null, data, href, newFileInfo, { lastModified: lastModified }); - } catch (e) { - callback(e, null, href); - } - }, function (status, url) { - callback({ type: 'File', message: "'" + url + "' wasn't found (" + status + ")" }, null, href); - }); -} - -function loadStyleSheet(sheet, callback, reload, remaining, modifyVars) { - - var env = new less.tree.parseEnv(less); - env.mime = sheet.type; - - if (modifyVars || less.globalVars) { - env.useFileCache = true; - } - - loadFile(sheet.href, null, function(e, data, path, newFileInfo, webInfo) { - - if (webInfo) { - webInfo.remaining = remaining; - - var css = cache && cache.getItem(path), - timestamp = cache && cache.getItem(path + ':timestamp'); - - if (!reload && timestamp && webInfo.lastModified && - (new(Date)(webInfo.lastModified).valueOf() === - new(Date)(timestamp).valueOf())) { - // Use local copy - createCSS(css, sheet); - webInfo.local = true; - callback(null, null, data, sheet, webInfo, path); - return; - } - } - - //TODO add tests around how this behaves when reloading - removeError(path); - - if (data) { - env.currentFileInfo = newFileInfo; - new(less.Parser)(env).parse(data, function (e, root) { - if (e) { return callback(e, null, null, sheet); } - try { - callback(e, root, data, sheet, webInfo, path); - } catch (e) { - callback(e, null, null, sheet); - } - }, {modifyVars: modifyVars, globalVars: less.globalVars}); - } else { - callback(e, null, null, sheet, webInfo, path); - } - }, env, modifyVars); -} - -function loadStyleSheets(callback, reload, modifyVars) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1), modifyVars); - } -} - -function initRunningMode(){ - if (less.env === 'development') { - less.optimization = 0; - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (e, root, _, sheet, env) { - if (e) { - error(e, sheet.href); - } else if (root) { - var styles = root.toCSS(less); - styles = postProcessCSS(styles); - createCSS(styles, sheet, env.lastModified); - } - }); - } - }, less.poll); - } else { - less.optimization = 3; - } -} - - - -// -// Watch mode -// -less.watch = function () { - if (!less.watchMode ){ - less.env = 'development'; - initRunningMode(); - } - this.watchMode = true; - return true; -}; - -less.unwatch = function () {clearInterval(less.watchTimer); this.watchMode = false; return false; }; - -if (/!watch/.test(location.hash)) { - less.watch(); -} - -if (less.env != 'development') { - try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; - } catch (_) {} -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - -// -// With this function, it's possible to alter variables and re-render -// CSS without reloading less-files -// -less.modifyVars = function(record) { - less.refresh(false, record); -}; - -less.refresh = function (reload, modifyVars) { - var startTime, endTime; - startTime = endTime = new Date(); - - loadStyleSheets(function (e, root, _, sheet, env) { - if (e) { - return error(e, sheet.href); - } - if (env.local) { - log("loading " + sheet.href + " from cache.", logLevel.info); - } else { - log("parsed " + sheet.href + " successfully.", logLevel.debug); - var styles = root.toCSS(less); - styles = postProcessCSS(styles); - createCSS(styles, sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new Date() - endTime) + 'ms', logLevel.info); - if (env.remaining === 0) { - log("less has finished. css generated in " + (new Date() - startTime) + 'ms', logLevel.info); - } - endTime = new Date(); - }, reload, modifyVars); - - loadStyles(modifyVars); -}; - -less.refreshStyles = loadStyles; - -less.Parser.fileLoader = loadFile; - -less.refresh(less.env === 'development'); - -// amd.js -// -// Define Less as an AMD module. -if (typeof define === "function" && define.amd) { - define(function () { return less; } ); -} - -})(window); \ No newline at end of file diff --git a/awx/ui/static/lib/less/dist/less-1.7.1.min.js b/awx/ui/static/lib/less/dist/less-1.7.1.min.js deleted file mode 100644 index 03b36452cf..0000000000 --- a/awx/ui/static/lib/less/dist/less-1.7.1.min.js +++ /dev/null @@ -1,16 +0,0 @@ -/*! - * Less - Leaner CSS v1.7.1 - * http://lesscss.org - * - * Copyright (c) 2009-2014, Alexis Sellier - * Licensed under the Apache v2 License. - * - */ - - /** * @license Apache v2 - */ - -!function(a,b){function c(b){return a.less[b.split("/")[1]]}function d(a,b){"undefined"!=typeof console&&w.logLevel>=b&&console.log("less: "+a)}function e(a){return a.replace(/^[a-z-]+:\/+?[^\/]+/,"").replace(/^\//,"").replace(/\.[a-zA-Z]+$/,"").replace(/[^\.\w-]+/g,"-").replace(/\./g,":")}function f(a,c){var e="{line} {content}",f=a.filename||c,g=[],h=(a.type||"Syntax")+"Error: "+(a.message||"There is an error in your .less file")+" in "+f+" ",i=function(a,c,d){a.extract[c]!==b&&g.push(e.replace(/\{line\}/,(parseInt(a.line,10)||0)+(c-1)).replace(/\{class\}/,d).replace(/\{content\}/,a.extract[c]))};a.extract?(i(a,0,""),i(a,1,"line"),i(a,2,""),h+="on line "+a.line+", column "+(a.column+1)+":\n"+g.join("\n")):a.stack&&(h+=a.stack),d(h,z.errors)}function g(a,b,c){var f=b.href||"",g="less:"+(b.title||e(f)),h=document.getElementById(g),i=!1,j=document.createElement("style");j.setAttribute("type","text/css"),b.media&&j.setAttribute("media",b.media),j.id=g,j.styleSheet||(j.appendChild(document.createTextNode(a)),i=null!==h&&h.childNodes.length>0&&j.childNodes.length>0&&h.firstChild.nodeValue===j.firstChild.nodeValue);var k=document.getElementsByTagName("head")[0];if(null===h||i===!1){var l=b&&b.nextSibling||null;l?l.parentNode.insertBefore(j,l):k.appendChild(j)}if(h&&i===!1&&h.parentNode.removeChild(h),j.styleSheet)try{j.styleSheet.cssText=a}catch(m){throw new Error("Couldn't reassign styleSheet.cssText.")}if(c&&D){d("saving "+f+" to cache.",z.info);try{D.setItem(f,a),D.setItem(f+":timestamp",c)}catch(m){d("failed to save",z.errors)}}}function h(a){return w.postProcessor&&"function"==typeof w.postProcessor&&(a=w.postProcessor.call(a,a)||a),a}function i(a,c){var d,f,h="less-error-message:"+e(c||""),i='
  • {content}
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(match = tok.exec(current))) { - return null; - } - - length = match[0].length; - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - - // Specialization of $(tok) - function $re(tok) { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - var m = tok.exec(current); - if (!m) { - return null; - } - - skipWhitespace(m[0].length); - if(typeof m === "string") { - return m; - } - - return m.length === 1 ? m[0] : m; - } - - var _$re = $re; - - // Specialization of $(tok) - function $char(tok) { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - curr = i - currentPos, - endIndex = i + current.length - curr, - mem = (i += length), - inp = input, - c; - - for (; i < endIndex; i++) { - c = inp.charCodeAt(i); - if (c > 32) { - break; - } - - if ((c !== 32) && (c !== 10) && (c !== 9) && (c !== 13)) { - break; - } - } - - current = current.slice(length + i - mem + curr); - currentPos = i; - - if (!current.length && (j < chunks.length - 1)) { - current = chunks[++j]; - skipWhitespace(0); // skip space at the beginning of a chunk - return true; // things changed - } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - // some older browsers return typeof 'function' for RegExp - var result = (Object.prototype.toString.call(arg) === '[object Function]') ? arg.call(parsers) : $(arg); - if (result) { - return result; - } - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } - - // Specialization of expect() - function expectChar(arg, msg) { - if (input.charAt(i) === arg) { - skipWhitespace(1); - return arg; - } - error(msg || "expected '" + arg + "' got '" + input.charAt(i) + "'"); - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - return tok.test(current); - } - } - - // Specialization of peek() - function peekChar(tok) { - return input.charAt(i) === tok; - } - - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, inputStream) { - var n = index + 1, - line = null, - column = -1; - - while (--n >= 0 && inputStream.charAt(n) !== '\n') { - column++; - } - - if (typeof index === 'number') { - line = (inputStream.slice(0, index).match(/\n/g) || "").length; - } - - return { - line: line, - column: column - }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - callLine = e.call && getLocation(e.call, input).line, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = callLine + 1; - this.callExtract = lines[callLine]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // @param str A string containing 'less' markup - // @param callback call `callback` when done. - // @param [additionalData] An optional map which can contains vars - a map (key, value) of variables to apply - // - parse: function (str, callback, additionalData) { - var root, line, lines, error = null, globalVars, modifyVars, preText = ""; - - i = j = currentPos = furthest = 0; - - globalVars = (additionalData && additionalData.globalVars) ? less.Parser.serializeVars(additionalData.globalVars) + '\n' : ''; - modifyVars = (additionalData && additionalData.modifyVars) ? '\n' + less.Parser.serializeVars(additionalData.modifyVars) : ''; - - if (globalVars || (additionalData && additionalData.banner)) { - preText = ((additionalData && additionalData.banner) ? additionalData.banner : "") + globalVars; - parser.imports.contentsIgnoredChars[env.currentFileInfo.filename] = preText.length; - } - - str = str.replace(/\r\n/g, '\n'); - // Remove potential UTF Byte Order Mark - input = str = preText + str.replace(/^\uFEFF/, '') + modifyVars; - parser.imports.contents[env.currentFileInfo.filename] = str; - - // Split the input into chunks. - chunks = (function (input) { - var len = input.length, level = 0, parenLevel = 0, - lastOpening, lastOpeningParen, lastMultiComment, lastMultiCommentEndBrace, - chunks = [], emitFrom = 0, - parserCurrentIndex, currentChunkStartIndex, cc, cc2, matched; - - function fail(msg, index) { - error = new(LessError)({ - index: index || parserCurrentIndex, - type: 'Parse', - message: msg, - filename: env.currentFileInfo.filename - }, env); - } - - function emitChunk(force) { - var len = parserCurrentIndex - emitFrom; - if (((len < 512) && !force) || !len) { - return; - } - chunks.push(input.slice(emitFrom, parserCurrentIndex + 1)); - emitFrom = parserCurrentIndex + 1; - } - - for (parserCurrentIndex = 0; parserCurrentIndex < len; parserCurrentIndex++) { - cc = input.charCodeAt(parserCurrentIndex); - if (((cc >= 97) && (cc <= 122)) || (cc < 34)) { - // a-z or whitespace - continue; - } - - switch (cc) { - case 40: // ( - parenLevel++; - lastOpeningParen = parserCurrentIndex; - continue; - case 41: // ) - if (--parenLevel < 0) { - return fail("missing opening `(`"); - } - continue; - case 59: // ; - if (!parenLevel) { emitChunk(); } - continue; - case 123: // { - level++; - lastOpening = parserCurrentIndex; - continue; - case 125: // } - if (--level < 0) { - return fail("missing opening `{`"); - } - if (!level && !parenLevel) { emitChunk(); } - continue; - case 92: // \ - if (parserCurrentIndex < len - 1) { parserCurrentIndex++; continue; } - return fail("unescaped `\\`"); - case 34: - case 39: - case 96: // ", ' and ` - matched = 0; - currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 1; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 > 96) { continue; } - if (cc2 == cc) { matched = 1; break; } - if (cc2 == 92) { // \ - if (parserCurrentIndex == len - 1) { - return fail("unescaped `\\`"); - } - parserCurrentIndex++; - } - } - if (matched) { continue; } - return fail("unmatched `" + String.fromCharCode(cc) + "`", currentChunkStartIndex); - case 47: // /, check for comment - if (parenLevel || (parserCurrentIndex == len - 1)) { continue; } - cc2 = input.charCodeAt(parserCurrentIndex + 1); - if (cc2 == 47) { - // //, find lnfeed - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if ((cc2 <= 13) && ((cc2 == 10) || (cc2 == 13))) { break; } - } - } else if (cc2 == 42) { - // /*, find */ - lastMultiComment = currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len - 1; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 == 125) { lastMultiCommentEndBrace = parserCurrentIndex; } - if (cc2 != 42) { continue; } - if (input.charCodeAt(parserCurrentIndex + 1) == 47) { break; } - } - if (parserCurrentIndex == len - 1) { - return fail("missing closing `*/`", currentChunkStartIndex); - } - parserCurrentIndex++; - } - continue; - case 42: // *, check for unmatched */ - if ((parserCurrentIndex < len - 1) && (input.charCodeAt(parserCurrentIndex + 1) == 47)) { - return fail("unmatched `/*`"); - } - continue; - } - } - - if (level !== 0) { - if ((lastMultiComment > lastOpening) && (lastMultiCommentEndBrace > lastMultiComment)) { - return fail("missing closing `}` or `*/`", lastOpening); - } else { - return fail("missing closing `}`", lastOpening); - } - } else if (parenLevel !== 0) { - return fail("missing closing `)`", lastOpeningParen); - } - - emitChunk(true); - return chunks; - })(str); - - if (error) { - return callback(new(LessError)(error, env)); - } - - current = chunks[0]; - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)(null, this.parsers.primary()); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - return function (options, variables) { - options = options || {}; - var evaldRoot, - css, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, null, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var preEvalVisitors = [], - visitors = [ - new(tree.joinSelectorVisitor)(), - new(tree.processExtendsVisitor)(), - new(tree.toCSSVisitor)({compress: Boolean(options.compress)}) - ], i, root = this; - - if (options.plugins) { - for(i =0; i < options.plugins.length; i++) { - if (options.plugins[i].isPreEvalVisitor) { - preEvalVisitors.push(options.plugins[i]); - } else { - if (options.plugins[i].isPreVisitor) { - visitors.splice(0, 0, options.plugins[i]); - } else { - visitors.push(options.plugins[i]); - } - } - } - } - - for(i = 0; i < preEvalVisitors.length; i++) { - preEvalVisitors[i].run(root); - } - - evaldRoot = evaluate.call(root, evalEnv); - - for(i = 0; i < visitors.length; i++) { - visitors[i].run(evaldRoot); - } - - if (options.sourceMap) { - evaldRoot = new tree.sourceMapOutput( - { - contentsIgnoredCharsMap: parser.imports.contentsIgnoredChars, - writeSourceMap: options.writeSourceMap, - rootNode: evaldRoot, - contentsMap: parser.imports.contents, - sourceMapFilename: options.sourceMapFilename, - sourceMapURL: options.sourceMapURL, - outputFilename: options.sourceMapOutputFilename, - sourceMapBasepath: options.sourceMapBasepath, - sourceMapRootpath: options.sourceMapRootpath, - outputSourceFiles: options.outputSourceFiles, - sourceMapGenerator: options.sourceMapGenerator - }); - } - - css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits), - numPrecision: 8}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.cleancss && less.mode === 'node') { - var CleanCSS = require('clean-css'), - cleancssOptions = options.cleancssOptions || {}; - - if (cleancssOptions.keepSpecialComments === undefined) { - cleancssOptions.keepSpecialComments = "*"; - } - cleancssOptions.processImport = false; - cleancssOptions.noRebase = true; - if (cleancssOptions.noAdvanced === undefined) { - cleancssOptions.noAdvanced = true; - } - - return new CleanCSS(cleancssOptions).minify(css); - } else if (options.compress) { - return css.replace(/(^(\s)+)|((\s)+$)/g, ""); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - var loc = getLocation(i, input); - lines = input.split('\n'); - line = loc.line + 1; - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: loc.column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - return callback(e); - } - else { - return callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - return finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some Less code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: parsers = { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var mixin = this.mixin, $re = _$re, root = [], node; - - while (current) - { - node = this.extendRule() || mixin.definition() || this.rule() || this.ruleset() || - mixin.call() || this.comment() || this.rulesetCall() || this.directive(); - if (node) { - root.push(node); - } else { - if (!($re(/^[\s\n]+/) || $re(/^;+/))) { - break; - } - } - if (peekChar('}')) { - break; - } - } - - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') { return; } - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($re(/^\/\/.*/), true, i, env.currentFileInfo); - } - comment = $re(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/); - if (comment) { - return new(tree.Comment)(comment, false, i, env.currentFileInfo); - } - }, - - comments: function () { - var comment, comments = []; - - while(true) { - comment = this.comment(); - if (!comment) { - break; - } - comments.push(comment); - } - - return comments; - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; } - - if (e) { $char('~'); } - - str = $re(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/); - if (str) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - k = $re(/^%|^[_A-Za-z-][_A-Za-z0-9-]*/); - if (k) { - var color = tree.Color.fromKeyword(k); - if (color) { - return color; - } - return new(tree.Keyword)(k); - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(current); - if (!name) { return; } - - name = name[1]; - nameLC = name.toLowerCase(); - if (nameLC === 'url') { - return null; - } - - i += name.length; - - if (nameLC === 'alpha') { - alpha_ret = parsers.alpha(); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $char('('); // Parse the '(' and consume whitespace. - - args = this.arguments(); - - if (! $char(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (true) { - arg = this.assignment() || parsers.expression(); - if (!arg) { - break; - } - args.push(arg); - if (! $char(',')) { - break; - } - } - return args; - }, - literal: function () { - return this.dimension() || - this.color() || - this.quoted() || - this.unicodeDescriptor(); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - key = $re(/^\w+(?=\s?=)/i); - if (!key) { - return; - } - if (!$char('=')) { - return; - } - value = parsers.entity(); - if (value) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$re(/^url\(/)) { - return; - } - - value = this.quoted() || this.variable() || - $re(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expectChar(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $re(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var curly, index = i; - - if (input.charAt(i) === '@' && (curly = $re(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $re(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - var colorCandidateString = rgb.input.match(/^#([\w]+).*/); // strip colons, brackets, whitespaces and other characters that should not definitely be part of color string - colorCandidateString = colorCandidateString[1]; - if (!colorCandidateString.match(/^[A-Fa-f0-9]+$/)) { // verify if candidate consists only of allowed HEX characters - error("Invalid HEX color code"); - } - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) { - return; - } - - value = $re(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/); - if (value) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - ud = $re(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/); - if (ud) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '`') { return; } - if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) { - error("You are using JavaScript, which has been disabled."); - } - - if (e) { $char('~'); } - - str = $re(/^`([^`]*)`/); - if (str) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*:/))) { return name[1]; } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink(); - // - rulesetCall: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*\(\s*\)\s*;/))) { - return new tree.RulesetCall(name[1]); - } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList, extend; - - if (!(isRule ? $re(/^&:extend\(/) : $re(/^:extend\(/))) { return; } - - do { - option = null; - elements = null; - while (! (option = $re(/^(all)(?=\s*(\)|,))/))) { - e = this.element(); - if (!e) { break; } - if (elements) { elements.push(e); } else { elements = [ e ]; } - } - - option = option && option[1]; - - extend = new(tree.Extend)(new(tree.Selector)(elements), option, index); - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - - } while($char(",")); - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var s = input.charAt(i), important = false, index = i, elemIndex, - elements, elem, e, c, args; - - if (s !== '.' && s !== '#') { return; } - - save(); // stop us absorbing part of an invalid selector - - while (true) { - elemIndex = i; - e = $re(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/); - if (!e) { - break; - } - elem = new(tree.Element)(c, e, elemIndex, env.currentFileInfo); - if (elements) { elements.push(elem); } else { elements = [ elem ]; } - c = $char('>'); - } - - if (elements) { - if ($char('(')) { - args = this.args(true).args; - expectChar(')'); - } - - if (parsers.important()) { - important = true; - } - - if (parsers.end()) { - forget(); - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - } - - restore(); - }, - args: function (isCall) { - var parsers = parser.parsers, entities = parsers.entities, - returner = { args:null, variadic: false }, - expressions = [], argsSemiColon = [], argsComma = [], - isSemiColonSeperated, expressionContainsNamed, name, nameLoop, value, arg; - - save(); - - while (true) { - if (isCall) { - arg = parsers.detachedRuleset() || parsers.expression(); - } else { - parsers.comments(); - if (input.charAt(i) === '.' && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = entities.variable() || entities.literal() || entities.keyword(); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value && arg.value.length == 1) { - val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($char(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - - // we do not support setting a ruleset as a default variable - it doesn't make sense - // However if we do want to add it, there is nothing blocking it, just don't error - // and remove isCall dependency below - value = (isCall && parsers.detachedRuleset()) || parsers.expression(); - - if (!value) { - if (isCall) { - error("could not understand value for named argument"); - } else { - restore(); - returner.args = []; - return returner; - } - } - nameLoop = (name = val.name); - } else if (!isCall && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($char(',')) { - continue; - } - - if ($char(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - forget(); - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) { - return; - } - - save(); - - match = $re(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/); - if (match) { - name = match[1]; - - var argInfo = this.args(false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. - // also - // .mixincall(@a: {rule: set;}); - // so we have to be nice and restore - if (!$char(')')) { - furthest = i; - restore(); - return; - } - - parsers.comments(); - - if ($re(/^when/)) { // Guard - cond = expect(parsers.conditions, 'expected condition'); - } - - ruleset = parsers.block(); - - if (ruleset) { - forget(); - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } else { - forget(); - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - var entities = this.entities; - - return entities.literal() || entities.variable() || entities.url() || - entities.call() || entities.keyword() || entities.javascript() || - this.comment(); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $char(';') || peekChar('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $re(/^\(opacity=/i)) { return; } - value = $re(/^\d+/) || this.entities.variable(); - if (value) { - expectChar(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, c, v, index = i; - - c = this.combinator(); - - e = $re(/^(?:\d+\.\d+|\d+)%/) || $re(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $char('*') || $char('&') || this.attribute() || $re(/^\([^()@]+\)/) || $re(/^[\.#](?=@)/) || - this.entities.variableCurly(); - - if (! e) { - save(); - if ($char('(')) { - if ((v = this.selector()) && $char(')')) { - e = new(tree.Paren)(v); - forget(); - } else { - restore(); - } - } else { - forget(); - } - } - - if (e) { return new(tree.Element)(c, e, index, env.currentFileInfo); } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|' || c === '^') { - i++; - if (input.charAt(i) === '^') { - c = '^^'; - i++; - } - while (isWhitespace(input, i)) { i++; } - return new(tree.Combinator)(c); - } else if (isWhitespace(input, i - 1)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - // - // A CSS selector (see selector below) - // with less extensions e.g. the ability to extend and guard - // - lessSelector: function () { - return this.selector(true); - }, - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function (isLess) { - var index = i, $re = _$re, elements, extendList, c, e, extend, when, condition; - - while ((isLess && (extend = this.extend())) || (isLess && (when = $re(/^when/))) || (e = this.element())) { - if (when) { - condition = expect(this.conditions, 'expected condition'); - } else if (condition) { - error("CSS guard can only be used at the end of selector"); - } else if (extend) { - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - } else { - if (extendList) { error("Extend can only be used at the end of selector"); } - c = input.charAt(i); - if (elements) { elements.push(e); } else { elements = [ e ]; } - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { - break; - } - } - - if (elements) { return new(tree.Selector)(elements, extendList, condition, index, env.currentFileInfo); } - if (extendList) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - if (! $char('[')) { return; } - - var entities = this.entities, - key, val, op; - - if (!(key = entities.variableCurly())) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - op = $re(/^[|~*$^]?=/); - if (op) { - val = entities.quoted() || $re(/^[0-9]+%/) || $re(/^[\w-]+/) || entities.variableCurly(); - } - - expectChar(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($char('{') && (content = this.primary()) && $char('}')) { - return content; - } - }, - - blockRuleset: function() { - var block = this.block(); - - if (block) { - block = new tree.Ruleset(null, block); - } - return block; - }, - - detachedRuleset: function() { - var blockRuleset = this.blockRuleset(); - if (blockRuleset) { - return new tree.DetachedRuleset(blockRuleset); - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors, s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - while (true) { - s = this.lessSelector(); - if (!s) { - break; - } - if (selectors) { selectors.push(s); } else { selectors = [ s ]; } - this.comments(); - if (s.condition && selectors.length > 1) { - error("Guards are only currently allowed on a single selector."); - } - if (! $char(',')) { break; } - if (s.condition) { - error("Guards are only currently allowed on a single selector."); - } - this.comments(); - } - - if (selectors && (rules = this.block())) { - forget(); - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) { - ruleset.debugInfo = debugInfo; - } - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, startOfRule = i, c = input.charAt(startOfRule), important, merge, isVariable; - - if (c === '.' || c === '#' || c === '&') { return; } - - save(); - - name = this.variable() || this.ruleProperty(); - if (name) { - isVariable = typeof name === "string"; - - if (isVariable) { - value = this.detachedRuleset(); - } - - if (!value) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || isVariable) ? - (this.value() || this.anonymousValue()) : - (this.anonymousValue() || this.value()); - - important = this.important(); - - // a name returned by this.ruleProperty() is always an array of the form: - // [string-1, ..., string-n, ""] or [string-1, ..., string-n, "+"] - // where each item is a tree.Keyword or tree.Variable - merge = !isVariable && name.pop().value; - } - - if (value && this.end()) { - forget(); - return new (tree.Rule)(name, value, important, merge, startOfRule, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } else { - forget(); - } - }, - anonymousValue: function () { - var match; - match = /^([^@+\/'"*`(;{}-]*);/.exec(current); - if (match) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $re(/^@import?\s+/); - - var options = (dir ? this.importOptions() : null) || {}; - - if (dir && (path = this.entities.quoted() || this.entities.url())) { - features = this.mediaFeatures(); - if ($char(';')) { - forget(); - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $char('(')) { return null; } - do { - o = this.importOption(); - if (o) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $char(',')) { break; } - } - } while (o); - expectChar(')'); - return options; - }, - - importOption: function() { - var opt = $re(/^(less|css|multiple|once|inline|reference)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var entities = this.entities, nodes = [], e, p; - do { - e = entities.keyword() || entities.variable(); - if (e) { - nodes.push(e); - } else if ($char('(')) { - p = this.property(); - e = this.value(); - if ($char(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null; } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var entities = this.entities, features = [], e; - do { - e = this.mediaFeature(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } else { - e = entities.variable(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - if ($re(/^@media/)) { - features = this.mediaFeatures(); - - rules = this.block(); - if (rules) { - media = new(tree.Media)(rules, features, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - media.debugInfo = debugInfo; - } - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var index = i, name, value, rules, nonVendorSpecificName, - hasIdentifier, hasExpression, hasUnknown, hasBlock = true; - - if (input.charAt(i) !== '@') { return; } - - value = this['import']() || this.media(); - if (value) { - return value; - } - - save(); - - name = $re(/^@[a-z-]+/); - - if (!name) { return; } - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - /* - case "@font-face": - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - */ - case "@charset": - hasIdentifier = true; - hasBlock = false; - break; - case "@namespace": - hasExpression = true; - hasBlock = false; - break; - case "@keyframes": - hasIdentifier = true; - break; - case "@host": - case "@page": - case "@document": - case "@supports": - hasUnknown = true; - break; - } - - if (hasIdentifier) { - value = this.entity(); - if (!value) { - error("expected " + name + " identifier"); - } - } else if (hasExpression) { - value = this.expression(); - if (!value) { - error("expected " + name + " expression"); - } - } else if (hasUnknown) { - value = ($re(/^[^{;]+/) || '').trim(); - if (value) { - value = new(tree.Anonymous)(value); - } - } - - if (hasBlock) { - rules = this.blockRuleset(); - } - - if (rules || (!hasBlock && value && $char(';'))) { - forget(); - return new(tree.Directive)(name, value, rules, index, env.currentFileInfo, - env.dumpLineNumbers ? getDebugInfo(index, input, env) : null); - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = []; - - do { - e = this.expression(); - if (e) { - expressions.push(e); - if (! $char(',')) { break; } - } - } while(e); - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $re(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($char('(')) { - a = this.addition(); - if (a) { - e = new(tree.Expression)([a]); - expectChar(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced; - m = this.operand(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - if (peek(/^\/[*\/]/)) { - break; - } - op = $char('/') || $char('*'); - - if (!op) { break; } - - a = this.operand(); - - if (!a) { break; } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - m = this.multiplication(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - op = $re(/^[-+]\s+/) || (!isSpaced && ($char('+') || $char('-'))); - if (!op) { - break; - } - a = this.multiplication(); - if (!a) { - break; - } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - a = this.condition(); - if (a) { - while (true) { - if (!peek(/^,\s*(not\s*)?\(/) || !$char(',')) { - break; - } - b = this.condition(); - if (!b) { - break; - } - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var entities = this.entities, index = i, negate = false, - a, b, c, op; - - if ($re(/^not/)) { negate = true; } - expectChar('('); - a = this.addition() || entities.keyword() || entities.quoted(); - if (a) { - op = $re(/^(?:>=|<=|=<|[<=>])/); - if (op) { - b = this.addition() || entities.keyword() || entities.quoted(); - if (b) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expectChar(')'); - return $re(/^and/) ? new(tree.Condition)('and', c, this.condition()) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var entities = this.entities, - p = input.charAt(i + 1), negate; - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $char('-'); } - var o = this.sub() || entities.dimension() || - entities.color() || entities.variable() || - entities.call(); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var entities = [], e, delim; - - do { - e = this.addition() || this.entity(); - if (e) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/)) { - delim = $char('/'); - if (delim) { - entities.push(new(tree.Anonymous)(delim)); - } - } - } - } while (e); - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name = $re(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/); - if (name) { - return name[1]; - } - }, - ruleProperty: function () { - var c = current, name = [], index = [], length = 0, s, k; - - function match(re) { - var a = re.exec(c); - if (a) { - index.push(i + length); - length += a[0].length; - c = c.slice(a[1].length); - return name.push(a[1]); - } - } - - match(/^(\*?)/); - while (match(/^((?:[\w-]+)|(?:@\{[\w-]+\}))/)); // ! - if ((name.length > 1) && match(/^\s*((?:\+_|\+)?)\s*:/)) { - // at last, we have the complete match now. move forward, - // convert name particles to tree objects and return: - skipWhitespace(length); - if (name[0] === '') { - name.shift(); - index.shift(); - } - for (k = 0; k < name.length; k++) { - s = name[k]; - name[k] = (s.charAt(0) !== '@') - ? new(tree.Keyword)(s) - : new(tree.Variable)('@' + s.slice(2, -1), - index[k], env.currentFileInfo); - } - return name; - } - } - } - }; - return parser; -}; -less.Parser.serializeVars = function(vars) { - var s = ''; - - for (var name in vars) { - if (Object.hasOwnProperty.call(vars, name)) { - var value = vars[name]; - s += ((name[0] === '@') ? '' : '@') + name +': '+ value + - ((('' + value).slice(-1) === ';') ? '' : ';'); - } - } - - return s; -}; - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 255); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; } - else if (h * 2 < 1) { return m2; } - else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; } - else { return m1; } - } - - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - luminance: function (color) { - var luminance = - (0.2126 * color.rgb[0] / 255) - + (0.7152 * color.rgb[1] / 255) - + (0.0722 * color.rgb[2] / 255); - - return new(tree.Dimension)(Math.round(luminance * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - // filter: saturate(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if (color.luma() < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str.value); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - replace: function (string, pattern, replacement, flags) { - var result = string.value; - - result = result.replace(new RegExp(pattern.value, flags ? flags.value : ''), replacement.value); - return new(tree.Quoted)(string.quote || '', result, string.escaped); - }, - '%': function (string /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - result = string.value; - - for (var i = 0; i < args.length; i++) { - /*jshint loopfunc:true */ - result = result.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - result = result.replace(/%%/g, '%'); - return new(tree.Quoted)(string.quote || '', result, string.escaped); - }, - unit: function (val, unit) { - if(!(val instanceof tree.Dimension)) { - throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") }; - } - if (unit) { - if (unit instanceof tree.Keyword) { - unit = unit.value; - } else { - unit = unit.toCSS(); - } - } else { - unit = ""; - } - return new(tree.Dimension)(val.value, unit); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return _math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _minmax: function (isMin, args) { - args = Array.prototype.slice.call(args); - switch(args.length) { - case 0: throw { type: "Argument", message: "one or more arguments required" }; - } - var i, j, current, currentUnified, referenceUnified, unit, unitStatic, unitClone, - order = [], // elems only contains original argument values. - values = {}; // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - for (i = 0; i < args.length; i++) { - current = args[i]; - if (!(current instanceof tree.Dimension)) { - if(Array.isArray(args[i].value)) { - Array.prototype.push.apply(args, Array.prototype.slice.call(args[i].value)); - } - continue; - } - currentUnified = current.unit.toString() === "" && unitClone !== undefined ? new(tree.Dimension)(current.value, unitClone).unify() : current.unify(); - unit = currentUnified.unit.toString() === "" && unitStatic !== undefined ? unitStatic : currentUnified.unit.toString(); - unitStatic = unit !== "" && unitStatic === undefined || unit !== "" && order[0].unify().unit.toString() === "" ? unit : unitStatic; - unitClone = unit !== "" && unitClone === undefined ? current.unit.toString() : unitClone; - j = values[""] !== undefined && unit !== "" && unit === unitStatic ? values[""] : values[unit]; - if (j === undefined) { - if(unitStatic !== undefined && unit !== unitStatic) { - throw{ type: "Argument", message: "incompatible types" }; - } - values[unit] = order.length; - order.push(current); - continue; - } - referenceUnified = order[j].unit.toString() === "" && unitClone !== undefined ? new(tree.Dimension)(order[j].value, unitClone).unify() : order[j].unify(); - if ( isMin && currentUnified.value < referenceUnified.value || - !isMin && currentUnified.value > referenceUnified.value) { - order[j] = current; - } - } - if (order.length == 1) { - return order[0]; - } - args = order.map(function (a) { return a.toCSS(this.env); }).join(this.env.compress ? "," : ", "); - return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")"); - }, - min: function () { - return this._minmax(true, arguments); - }, - max: function () { - return this._minmax(false, arguments); - }, - "get-unit": function (n) { - return new(tree.Anonymous)(n.unit); - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - var colorCandidate = n.value, - returnColor; - returnColor = tree.Color.fromKeyword(colorCandidate); - if (returnColor) { - return returnColor; - } - if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) { - return new(tree.Color)(colorCandidate.slice(1)); - } - throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" }; - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - return Array.isArray(values.value) - ? values.value[index] : Array(values)[index]; - }, - length: function(values) { - var n = Array.isArray(values.value) ? values.value.length : 1; - return new tree.Dimension(n); - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require('./fs'), - path = require('path'), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) { mimetype += ';base64'; } - } - else { - useBase64 = /;base64$/.test(mimetype); - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "\"data:" + mimetype + ',' + buf + "\""; - return new(tree.URL)(new(tree.Anonymous)(uri)); - }, - - "svg-gradient": function(direction) { - - function throwArgumentDescriptor() { - throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" }; - } - - if (arguments.length < 3) { - throwArgumentDescriptor(); - } - var stops = Array.prototype.slice.call(arguments, 1), - gradientDirectionSvg, - gradientType = "linear", - rectangleDimension = 'x="0" y="0" width="1" height="1"', - useBase64 = true, - renderEnv = {compress: false}, - returner, - directionValue = direction.toCSS(renderEnv), - i, color, position, positionValue, alpha; - - switch (directionValue) { - case "to bottom": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - gradientType = "radial"; - gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" }; - } - returner = '' + - '' + - '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>'; - - for (i = 0; i < stops.length; i+= 1) { - if (stops[i].value) { - color = stops[i].value[0]; - position = stops[i].value[1]; - } else { - color = stops[i]; - position = undefined; - } - - if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) { - throwArgumentDescriptor(); - } - positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%"; - alpha = color.alpha; - returner += ''; - } - returner += '' + - ''; - - if (useBase64) { - try { - returner = require('./encoder').encodeBase64(returner); // TODO browser implementation - } catch(e) { - useBase64 = false; - } - } - - returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'"; - return new(tree.URL)(new(tree.Anonymous)(returner)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -// Math - -var mathFunctions = { - // name, unit - ceil: null, - floor: null, - sqrt: null, - abs: null, - tan: "", - sin: "", - cos: "", - atan: "rad", - asin: "rad", - acos: "rad" -}; - -function _math(fn, unit, n) { - if (!(n instanceof tree.Dimension)) { - throw { type: "Argument", message: "argument must be a number" }; - } - if (unit == null) { - unit = n.unit; - } else { - n = n.unify(); - } - return new(tree.Dimension)(fn(parseFloat(n.value)), unit); -} - -// ~ End of Math - -// Color Blending -// ref: http://www.w3.org/TR/compositing-1 - -function colorBlend(mode, color1, color2) { - var ab = color1.alpha, cb, // backdrop - as = color2.alpha, cs, // source - ar, cr, r = []; // result - - ar = as + ab * (1 - as); - for (var i = 0; i < 3; i++) { - cb = color1.rgb[i] / 255; - cs = color2.rgb[i] / 255; - cr = mode(cb, cs); - if (ar) { - cr = (as * cs + ab * (cb - - as * (cb + cs - cr))) / ar; - } - r[i] = cr * 255; - } - - return new(tree.Color)(r, ar); -} - -var colorBlendMode = { - multiply: function(cb, cs) { - return cb * cs; - }, - screen: function(cb, cs) { - return cb + cs - cb * cs; - }, - overlay: function(cb, cs) { - cb *= 2; - return (cb <= 1) - ? colorBlendMode.multiply(cb, cs) - : colorBlendMode.screen(cb - 1, cs); - }, - softlight: function(cb, cs) { - var d = 1, e = cb; - if (cs > 0.5) { - e = 1; - d = (cb > 0.25) ? Math.sqrt(cb) - : ((16 * cb - 12) * cb + 4) * cb; - } - return cb - (1 - 2 * cs) * e * (d - cb); - }, - hardlight: function(cb, cs) { - return colorBlendMode.overlay(cs, cb); - }, - difference: function(cb, cs) { - return Math.abs(cb - cs); - }, - exclusion: function(cb, cs) { - return cb + cs - 2 * cb * cs; - }, - - // non-w3c functions: - average: function(cb, cs) { - return (cb + cs) / 2; - }, - negation: function(cb, cs) { - return 1 - Math.abs(cb + cs - 1); - } -}; - -// ~ End of Color Blending - -tree.defaultFunc = { - eval: function () { - var v = this.value_, e = this.error_; - if (e) { - throw e; - } - if (v != null) { - return v ? tree.True : tree.False; - } - }, - value: function (v) { - this.value_ = v; - }, - error: function (e) { - this.error_ = e; - }, - reset: function () { - this.value_ = this.error_ = null; - } -}; - -function initFunctions() { - var f, tf = tree.functions; - - // math - for (f in mathFunctions) { - if (mathFunctions.hasOwnProperty(f)) { - tf[f] = _math.bind(null, Math[f], mathFunctions[f]); - } - } - - // color blending - for (f in colorBlendMode) { - if (colorBlendMode.hasOwnProperty(f)) { - tf[f] = colorBlend.bind(null, colorBlendMode[f]); - } - } - - // default - f = tree.defaultFunc; - tf["default"] = f.eval.bind(f); - -} initFunctions(); - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.fround = function(env, value) { - var p = env && env.numPrecision; - //add "epsilon" to ensure numbers like 1.000000005 (represented as 1.000000004999....) are properly rounded... - return (p == null) ? value : Number((value + 2e-16).toFixed(p)); -}; - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); - -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); - -(function (tree) { - -tree.debugInfo = function(env, ctx, lineSeperator) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:\/\\])/g, function (a) { - if (a == '\\') { - a = '\/'; - } - return '\\' + a; - }) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - r = fun.call(obj, obj[i]); - if (r) { return r; } - } - return null; -}; - -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(); }).join(', ') + ']'; - } else { - return obj.toCSS(); - } -}; - -tree.toCSS = function (env) { - var strs = []; - this.genCSS(env, { - add: function(chunk, fileInfo, index) { - strs.push(chunk); - }, - isEmpty: function () { - return strs.length === 0; - } - }); - return strs.join(''); -}; - -tree.outputRuleset = function (env, output, rules) { - var ruleCnt = rules.length, i; - env.tabLevel = (env.tabLevel | 0) + 1; - - // Compressed - if (env.compress) { - output.add('{'); - for (i = 0; i < ruleCnt; i++) { - rules[i].genCSS(env, output); - } - output.add('}'); - env.tabLevel--; - return; - } - - // Non-compressed - var tabSetStr = '\n' + Array(env.tabLevel).join(" "), tabRuleStr = tabSetStr + " "; - if (!ruleCnt) { - output.add(" {" + tabSetStr + '}'); - } else { - output.add(" {" + tabRuleStr); - rules[0].genCSS(env, output); - for (i = 1; i < ruleCnt; i++) { - output.add(tabRuleStr); - rules[i].genCSS(env, output); - } - output.add(tabSetStr + '}'); - } - - env.tabLevel--; -}; - -})(require('./tree')); - -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } - return this; - }, - genCSS: function (env, output) { - output.add("alpha(opacity="); - - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - - output.add(")"); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Anonymous = function (value, index, currentFileInfo, mapLines) { - this.value = value; - this.index = index; - this.mapLines = mapLines; - this.currentFileInfo = currentFileInfo; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - eval: function () { - return new tree.Anonymous(this.value, this.index, this.currentFileInfo, this.mapLines); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - }, - genCSS: function (env, output) { - output.add(this.value, this.currentFileInfo, this.index, this.mapLines); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - }, - genCSS: function (env, output) { - output.add(this.key + '='); - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - if (this.args) { - this.args = visitor.visitArray(this.args); - } - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - return new tree.Call(this.name, args, this.index, this.currentFileInfo); - }, - - genCSS: function (env, output) { - output.add(this.name + "(", this.currentFileInfo, this.index); - - for(var i = 0; i < this.args.length; i++) { - this.args[i].genCSS(env, output); - if (i + 1 < this.args.length) { - output.add(", "); - } - } - - output.add(")"); - }, - - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; - -var transparentKeyword = "transparent"; - -tree.Color.prototype = { - type: "Color", - eval: function () { return this; }, - luma: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255; - - r = (r <= 0.03928) ? r / 12.92 : Math.pow(((r + 0.055) / 1.055), 2.4); - g = (g <= 0.03928) ? g / 12.92 : Math.pow(((g + 0.055) / 1.055), 2.4); - b = (b <= 0.03928) ? b / 12.92 : Math.pow(((b + 0.055) / 1.055), 2.4); - - return 0.2126 * r + 0.7152 * g + 0.0722 * b; - }, - - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress, - alpha = tree.fround(env, this.alpha); - - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - if (alpha < 1) { - if (alpha === 0 && this.isTransparentKeyword) { - return transparentKeyword; - } - return "rgba(" + this.rgb.map(function (c) { - return clamp(Math.round(c), 255); - }).concat(clamp(alpha, 1)) - .join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.toRGB(); - - if (compress) { - var splitcolor = color.split(''); - - // Convert color to short format - if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) { - color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5]; - } - } - - return color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var rgb = []; - var alpha = this.alpha * (1 - other.alpha) + other.alpha; - for (var c = 0; c < 3; c++) { - rgb[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(rgb, alpha); - }, - - toRGB: function () { - return toHex(this.rgb); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - return toHex([this.alpha * 255].concat(this.rgb)); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - -tree.Color.fromKeyword = function(keyword) { - keyword = keyword.toLowerCase(); - - if (tree.colors.hasOwnProperty(keyword)) { - // detect named color - return new(tree.Color)(tree.colors[keyword].slice(1)); - } - if (keyword === transparentKeyword) { - var transparent = new(tree.Color)([0, 0, 0], 0); - transparent.isTransparentKeyword = true; - return transparent; - } -}; - -function toHex(v) { - return '#' + v.map(function (c) { - c = clamp(Math.round(c), 255); - return (c < 16 ? '0' : '') + c.toString(16); - }).join(''); -} - -function clamp(v, max) { - return Math.min(Math.max(v, 0), max); -} - -})(require('../tree')); - -(function (tree) { - -tree.Comment = function (value, silent, index, currentFileInfo) { - this.value = value; - this.silent = !!silent; - this.currentFileInfo = currentFileInfo; -}; -tree.Comment.prototype = { - type: "Comment", - genCSS: function (env, output) { - if (this.debugInfo) { - output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index); - } - output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n - }, - toCSS: tree.toCSS, - isSilent: function(env) { - var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced), - isCompressed = env.compress && !this.value.match(/^\/\*!/); - return this.silent || isReference || isCompressed; - }, - eval: function () { return this; }, - markReferenced: function () { - this.isReferenced = true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<' || op === '<='; - case 0: return op === '=' || op === '>=' || op === '=<' || op === '<='; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.DetachedRuleset = function (ruleset, frames) { - this.ruleset = ruleset; - this.frames = frames; -}; -tree.DetachedRuleset.prototype = { - type: "DetachedRuleset", - accept: function (visitor) { - this.ruleset = visitor.visit(this.ruleset); - }, - eval: function (env) { - var frames = this.frames || env.frames.slice(0); - return new tree.DetachedRuleset(this.ruleset, frames); - }, - callEval: function (env) { - return this.ruleset.eval(this.frames ? new(tree.evalEnv)(env, this.frames.concat(env.frames)) : env); - } -}; -})(require('../tree')); - -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - genCSS: function (env, output) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = tree.fround(env, this.value), - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && this.unit.isLength()) { - output.add(strValue); - return; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - output.add(strValue); - this.unit.genCSS(env, output); - }, - toCSS: tree.toCSS, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - /*jshint noempty:false */ - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a, b, - aValue, bValue; - - if (this.unit.isEmpty() || other.unit.isEmpty()) { - a = this; - b = other; - } else { - a = this.unify(); - b = other.unify(); - if (a.unit.compare(b.unit) !== 0) { - return -1; - } - } - aValue = a.value; - bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'px', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, targetUnit, derivedConversions = {}, applyUnit; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - applyUnit = function (atomicUnit, denominator) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(applyUnit); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'px': 0.0254 / 96, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - genCSS: function (env, output) { - if (this.numerator.length >= 1) { - output.add(this.numerator[0]); - } else - if (this.denominator.length >= 1) { - output.add(this.denominator[0]); - } else - if ((!env || !env.strictUnits) && this.backupUnit) { - output.add(this.backupUnit); - } - }, - toCSS: tree.toCSS, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isLength: function () { - return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/)); - }, - - isEmpty: function () { - return this.numerator.length === 0 && this.denominator.length === 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length === 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, result = {}, mapUnit; - - mapUnit = function (atomicUnit) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }; - - for (var groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(mapUnit); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Directive = function (name, value, rules, index, currentFileInfo, debugInfo) { - this.name = name; - this.value = value; - if (rules) { - this.rules = rules; - this.rules.allowImports = true; - } - this.index = index; - this.currentFileInfo = currentFileInfo; - this.debugInfo = debugInfo; -}; - -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - var value = this.value, rules = this.rules; - if (rules) { - rules = visitor.visit(rules); - } - if (value) { - value = visitor.visit(value); - } - }, - genCSS: function (env, output) { - var value = this.value, rules = this.rules; - output.add(this.name, this.currentFileInfo, this.index); - if (value) { - output.add(' '); - value.genCSS(env, output); - } - if (rules) { - tree.outputRuleset(env, output, [rules]); - } else { - output.add(';'); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var value = this.value, rules = this.rules; - if (value) { - value = value.eval(env); - } - if (rules) { - rules = rules.eval(env); - rules.root = true; - } - return new(tree.Directive)(this.name, value, rules, - this.index, this.currentFileInfo, this.debugInfo); - }, - variable: function (name) { if (this.rules) return tree.Ruleset.prototype.variable.call(this.rules, name); }, - find: function () { if (this.rules) return tree.Ruleset.prototype.find.apply(this.rules, arguments); }, - rulesets: function () { if (this.rules) return tree.Ruleset.prototype.rulesets.apply(this.rules); }, - markReferenced: function () { - var i, rules; - this.isReferenced = true; - if (this.rules) { - rules = this.rules.rules; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Element = function (combinator, value, index, currentFileInfo) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - var value = this.value; - this.combinator = visitor.visit(this.combinator); - if (typeof value === "object") { - this.value = visitor.visit(value); - } - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index, - this.currentFileInfo); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env), this.currentFileInfo, this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value === '' && this.combinator.value.charAt(0) === '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - _outputMap: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : ' + ', - '~' : ' ~ ', - '>' : ' > ', - '|' : '|', - '^' : ' ^ ', - '^^' : ' ^^ ' - }, - _outputMapCompressed: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : '+', - '~' : '~', - '>' : '>', - '|' : '|', - '^' : '^', - '^^' : '^^' - }, - genCSS: function (env, output) { - output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - genCSS: function (env, output) { - for(var i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i + 1 < this.value.length) { - output.add(" "); - } - } - }, - toCSS: tree.toCSS, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - this.object_id = tree.Extend.next_id++; - this.parent_ids = [this.object_id]; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; -tree.Extend.next_id = 0; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i, - selectorElements; - - for(i = 0; i < selectors.length; i++) { - selectorElements = selectors[i].elements; - // duplicate the logic in genCSS function inside the selector node. - // future TODO - move both logics into the selector joiner visitor - if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") { - selectorElements[0].combinator.value = ' '; - } - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); - -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined || this.options.inline) { - this.css = !this.options.less || this.options.inline; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - this.path = visitor.visit(this.path); - if (!this.options.inline && this.root) { - this.root = visitor.visit(this.root); - } - }, - genCSS: function (env, output) { - if (this.css) { - output.add("@import ", this.currentFileInfo, this.index); - this.path.genCSS(env, output); - if (this.features) { - output.add(" "); - this.features.genCSS(env, output); - } - output.add(';'); - } - }, - toCSS: tree.toCSS, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - - if (!(path instanceof tree.URL)) { - if (rootpath) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath +pathValue; - } - } - path.value = env.normalizePath(path.value); - } - - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { - if (typeof this.skip === "function") { - this.skip = this.skip(); - } - if (this.skip) { - return []; - } - } - - if (this.options.inline) { - //todo needs to reference css file not import - var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true); - return this.features ? new(tree.Media)([contents], this.features.value) : [contents]; - } else if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" , - index: this.index }; - } - - var variables = env.frames[0].variables(); - for (var k in variables) { - if (variables.hasOwnProperty(k)) { - /*jshint loopfunc:true */ - context[k.slice(1)] = { - value: variables[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message.replace(/["]/g, "'") + "'" , - index: this.index }; - } - if (typeof(result) === 'number') { - return new(tree.Dimension)(result); - } else if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Keyword = function (value) { this.value = value; }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - genCSS: function (env, output) { - if (this.value === '%') { throw { type: "Syntax", message: "Invalid % without number" }; } - output.add(this.value); - }, - toCSS: tree.toCSS, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); - -(function (tree) { - -tree.Media = function (value, features, index, currentFileInfo) { - this.index = index; - this.currentFileInfo = currentFileInfo; - - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.rules = [new(tree.Ruleset)(selectors, value)]; - this.rules[0].allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - }, - genCSS: function (env, output) { - output.add('@media ', this.currentFileInfo, this.index); - this.features.genCSS(env, output); - tree.outputRuleset(env, output, this.rules); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)(null, [], this.index, this.currentFileInfo); - if(this.debugInfo) { - this.rules[0].debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.rules[0]); - media.rules = [this.rules[0].eval(env)]; - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env); - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', this.index, this.currentFileInfo), - sels = [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)]; - sels[0].mediaEmpty = true; - return sels; - }, - markReferenced: function () { - var i, rules = this.rules[0].rules; - this.rules[0].markReferenced(); - this.isReferenced = true; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - if (!selectors) - return; - this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])]; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = (args && args.length) ? args : null; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - if (this.selector) { - this.selector = visitor.visit(this.selector); - } - if (this.arguments) { - this.arguments = visitor.visitArray(this.arguments); - } - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule, - candidates = [], candidate, conditionResult = [], defaultFunc = tree.defaultFunc, - defaultResult, defNone = 0, defTrue = 1, defFalse = 2, count, originalRuleset; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - - // To make `default()` function independent of definition order we have two "subpasses" here. - // At first we evaluate each guard *twice* (with `default() == true` and `default() == false`), - // and build candidate list with corresponding flags. Then, when we know all possible matches, - // we make a final decision. - - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - - if (mixin.matchArgs(args, env)) { - candidate = {mixin: mixin, group: defNone}; - - if (mixin.matchCondition) { - for (f = 0; f < 2; f++) { - defaultFunc.value(f); - conditionResult[f] = mixin.matchCondition(args, env); - } - if (conditionResult[0] || conditionResult[1]) { - if (conditionResult[0] != conditionResult[1]) { - candidate.group = conditionResult[1] ? - defTrue : defFalse; - } - - candidates.push(candidate); - } - } - else { - candidates.push(candidate); - } - - match = true; - } - } - - defaultFunc.reset(); - - count = [0, 0, 0]; - for (m = 0; m < candidates.length; m++) { - count[candidates[m].group]++; - } - - if (count[defNone] > 0) { - defaultResult = defFalse; - } else { - defaultResult = defTrue; - if ((count[defTrue] + count[defFalse]) > 1) { - throw { type: 'Runtime', - message: 'Ambiguous use of `default()` found when matching for `' - + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - for (m = 0; m < candidates.length; m++) { - candidate = candidates[m].group; - if ((candidate === defNone) || (candidate === defaultResult)) { - try { - mixin = candidates[m].mixin; - if (!(mixin instanceof tree.mixin.Definition)) { - originalRuleset = mixin.originalRuleset || mixin; - mixin = new tree.mixin.Definition("", [], mixin.rules, null, false); - mixin.originalRuleset = originalRuleset; - } - Array.prototype.push.apply( - rules, mixin.evalCall(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - } - - if (match) { - if (!this.currentFileInfo || !this.currentFileInfo.reference) { - for (i = 0; i < rules.length; i++) { - rule = rules[i]; - if (rule.markReferenced) { - rule.markReferenced(); - } - } - } - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - }, - format: function (args) { - return this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")"; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic, frames) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1; } - else { return count; } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = frames; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - if (this.params && this.params.length) { - this.params = visitor.visitArray(this.params); - } - this.rules = visitor.visitArray(this.rules); - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - /*jshint boss:true */ - var frame = new(tree.Ruleset)(null, null), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex, argsLength = 0; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - argsLength = args.length; - - for(i = 0; i < argsLength; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.prependRule(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) { continue; } - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic) { - varargs = []; - for (j = argIndex; j < argsLength; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.prependRule(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + argsLength + ' for ' + this.arity + ')' }; - } - - frame.prependRule(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < argsLength; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env) { - return new tree.mixin.Definition(this.name, this.params, this.rules, this.condition, this.variadic, this.frames || env.frames.slice(0)); - }, - evalCall: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames ? this.frames.concat(env.frames) : env.frames, - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - rules, ruleset; - - frame.prependRule(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules); - ruleset.originalRuleset = this; - ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames))); - if (important) { - ruleset = this.parent.makeImportant.apply(ruleset); - } - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames ? this.frames.concat(env.frames) : env.frames), args, [])] // the parameter variables - .concat(this.frames) // the parent namespace/mixin frames - .concat(env.frames)))) { // the current environment frames - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (! this.variadic) { - if (argsLength < this.required) { return false; } - if (argsLength > this.params.length) { return false; } - } else { - if (argsLength < (this.required - 1)) { return false; } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('-'); - this.value.genCSS(env, output); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env); - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - a = a.toColor(); - } - if (b instanceof tree.Dimension && a instanceof tree.Color) { - b = b.toColor(); - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - genCSS: function (env, output) { - this.operands[0].genCSS(env, output); - if (this.isSpaced) { - output.add(" "); - } - output.add(this.op); - if (this.isSpaced) { - output.add(" "); - } - this.operands[1].genCSS(env, output); - }, - toCSS: tree.toCSS -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('('); - this.value.genCSS(env, output); - output.add(')'); - }, - toCSS: tree.toCSS, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - genCSS: function (env, output) { - if (!this.escaped) { - output.add(this.quote, this.currentFileInfo, this.index); - } - output.add(this.value); - if (!this.escaped) { - output.add(this.quote); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left, right; - - // when comparing quoted strings allow the quote to differ - if (x.type === "Quoted" && !this.escaped && !x.escaped) { - left = x.value; - right = this.value; - } else { - left = this.toCSS(); - right = x.toCSS(); - } - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value || value instanceof tree.Ruleset) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.merge = merge; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - this.variable = name.charAt && (name.charAt(0) === '@'); -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index); - try { - this.value.genCSS(env, output); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index); - }, - toCSS: tree.toCSS, - eval: function (env) { - var strictMathBypass = false, name = this.name, evaldValue; - if (typeof name !== "string") { - // expand 'primitive' name directly to get - // things faster (~10% for benchmark.less): - name = (name.length === 1) - && (name[0] instanceof tree.Keyword) - ? name[0].value : evalName(env, name); - } - if (name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - evaldValue = this.value.eval(env); - - if (!this.variable && evaldValue.type === "DetachedRuleset") { - throw { message: "Rulesets cannot be evaluated on a property.", - index: this.index, filename: this.currentFileInfo.filename }; - } - - return new(tree.Rule)(name, - evaldValue, - this.important, - this.merge, - this.index, this.currentFileInfo, this.inline); - } - catch(e) { - if (typeof e.index !== 'number') { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - } - throw e; - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.merge, - this.index, this.currentFileInfo, this.inline); - } -}; - -function evalName(env, name) { - var value = "", i, n = name.length, - output = {add: function (s) {value += s;}}; - for (i = 0; i < n; i++) { - name[i].eval(env).genCSS(env, output); - } - return value; -} - -})(require('../tree')); - -(function (tree) { - -tree.RulesetCall = function (variable) { - this.variable = variable; -}; -tree.RulesetCall.prototype = { - type: "RulesetCall", - accept: function (visitor) { - }, - eval: function (env) { - var detachedRuleset = new(tree.Variable)(this.variable).eval(env); - return detachedRuleset.callEval(env); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - if (this.paths) { - visitor.visitArray(this.paths, true); - } else if (this.selectors) { - this.selectors = visitor.visitArray(this.selectors); - } - if (this.rules && this.rules.length) { - this.rules = visitor.visitArray(this.rules); - } - }, - eval: function (env) { - var thisSelectors = this.selectors, selectors, - selCnt, selector, i, defaultFunc = tree.defaultFunc, hasOnePassingSelector = false; - - if (thisSelectors && (selCnt = thisSelectors.length)) { - selectors = []; - defaultFunc.error({ - type: "Syntax", - message: "it is currently only allowed in parametric mixin guards," - }); - for (i = 0; i < selCnt; i++) { - selector = thisSelectors[i].eval(env); - selectors.push(selector); - if (selector.evaldCondition) { - hasOnePassingSelector = true; - } - } - defaultFunc.reset(); - } else { - hasOnePassingSelector = true; - } - - var rules = this.rules ? this.rules.slice(0) : null, - ruleset = new(tree.Ruleset)(selectors, rules, this.strictImports), - rule, subRule; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - if (!hasOnePassingSelector) { - rules.length = 0; - } - - // push the current ruleset to the frames stack - var envFrames = env.frames; - envFrames.unshift(ruleset); - - // currrent selectors - var envSelectors = env.selectors; - if (!envSelectors) { - env.selectors = envSelectors = []; - } - envSelectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - var rsRules = ruleset.rules, rsRuleCnt = rsRules ? rsRules.length : 0; - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Definition || rsRules[i] instanceof tree.DetachedRuleset) { - rsRules[i] = rsRules[i].eval(env); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Call) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } else if (rsRules[i] instanceof tree.RulesetCall) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).rules.filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope at all - return false; - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (i = 0; i < rsRules.length; i++) { - rule = rsRules[i]; - if (! (rule instanceof tree.mixin.Definition || rule instanceof tree.DetachedRuleset)) { - rsRules[i] = rule = rule.eval ? rule.eval(env) : rule; - } - } - - // Evaluate everything else - for (i = 0; i < rsRules.length; i++) { - rule = rsRules[i]; - // for rulesets, check if it is a css guard and can be removed - if (rule instanceof tree.Ruleset && rule.selectors && rule.selectors.length === 1) { - // check if it can be folded in (e.g. & where) - if (rule.selectors[0].isJustParentSelector()) { - rsRules.splice(i--, 1); - - for(var j = 0; j < rule.rules.length; j++) { - subRule = rule.rules[j]; - if (!(subRule instanceof tree.Rule) || !subRule.variable) { - rsRules.splice(++i, 0, subRule); - } - } - } - } - } - - // Pop the stack - envFrames.shift(); - envSelectors.shift(); - - if (env.mediaBlocks) { - for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var rules = this.rules, i, importRules; - if (!rules) { return; } - - for (i = 0; i < rules.length; i++) { - if (rules[i] instanceof tree.Import) { - importRules = rules[i].eval(env); - if (importRules && importRules.length) { - rules.splice.apply(rules, [i, 1].concat(importRules)); - i+= importRules.length-1; - } else { - rules.splice(i, 1, importRules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - // lets you call a css selector with a guard - matchCondition: function (args, env) { - var lastSelector = this.selectors[this.selectors.length-1]; - if (!lastSelector.evaldCondition) { - return false; - } - if (lastSelector.condition && - !lastSelector.condition.eval( - new(tree.evalEnv)(env, - env.frames))) { - return false; - } - return true; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (!this._variables) { - this._variables = !this.rules ? {} : this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - return this._variables; - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (!this.rules) { return null; } - - var _Ruleset = tree.Ruleset, _MixinDefinition = tree.mixin.Definition, - filtRules = [], rules = this.rules, cnt = rules.length, - i, rule; - - for (i = 0; i < cnt; i++) { - rule = rules[i]; - if ((rule instanceof _Ruleset) || (rule instanceof _MixinDefinition)) { - filtRules.push(rule); - } - } - - return filtRules; - }, - prependRule: function (rule) { - var rules = this.rules; - if (rules) { rules.unshift(rule); } else { this.rules = [ rule ]; } - }, - find: function (selector, self) { - self = self || this; - var rules = [], match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key]; } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - match = selector.match(rule.selectors[j]); - if (match) { - if (selector.elements.length > match) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(match)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - this._lookups[key] = rules; - return rules; - }, - genCSS: function (env, output) { - var i, j, - ruleNodes = [], - rulesetNodes = [], - rulesetNodeCnt, - debugInfo, // Line number debugging - rule, - path; - - env.tabLevel = (env.tabLevel || 0); - - if (!this.root) { - env.tabLevel++; - } - - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "), - sep; - - for (i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - if (rule.rules || (rule instanceof tree.Media) || rule instanceof tree.Directive || (this.root && rule instanceof tree.Comment)) { - rulesetNodes.push(rule); - } else { - ruleNodes.push(rule); - } - } - - // If this is the root node, we don't render - // a selector, or {}. - if (!this.root) { - debugInfo = tree.debugInfo(env, this, tabSetStr); - - if (debugInfo) { - output.add(debugInfo); - output.add(tabSetStr); - } - - var paths = this.paths, pathCnt = paths.length, - pathSubCnt; - - sep = env.compress ? ',' : (',\n' + tabSetStr); - - for (i = 0; i < pathCnt; i++) { - path = paths[i]; - if (!(pathSubCnt = path.length)) { continue; } - if (i > 0) { output.add(sep); } - - env.firstSelector = true; - path[0].genCSS(env, output); - - env.firstSelector = false; - for (j = 1; j < pathSubCnt; j++) { - path[j].genCSS(env, output); - } - } - - output.add((env.compress ? '{' : ' {\n') + tabRuleStr); - } - - // Compile rules and rulesets - for (i = 0; i < ruleNodes.length; i++) { - rule = ruleNodes[i]; - - // @page{ directive ends up with root elements inside it, a mix of rules and rulesets - // In this instance we do not know whether it is the last property - if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) { - env.lastRule = true; - } - - if (rule.genCSS) { - rule.genCSS(env, output); - } else if (rule.value) { - output.add(rule.value.toString()); - } - - if (!env.lastRule) { - output.add(env.compress ? '' : ('\n' + tabRuleStr)); - } else { - env.lastRule = false; - } - } - - if (!this.root) { - output.add((env.compress ? '}' : '\n' + tabSetStr + '}')); - env.tabLevel--; - } - - sep = (env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr); - rulesetNodeCnt = rulesetNodes.length; - if (rulesetNodeCnt) { - if (ruleNodes.length && sep) { output.add(sep); } - rulesetNodes[0].genCSS(env, output); - for (i = 1; i < rulesetNodeCnt; i++) { - if (sep) { output.add(sep); } - rulesetNodes[i].genCSS(env, output); - } - } - - if (!output.isEmpty() && !env.compress && this.firstRoot) { - output.add('\n'); - } - }, - - toCSS: tree.toCSS, - - markReferenced: function () { - if (!this.selectors) { - return; - } - for (var s = 0; s < this.selectors.length; s++) { - this.selectors[s].markReferenced(); - } - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for (i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for (j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length === 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', el.index, el.currentFileInfo)); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for (k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = selector.createDerived([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for (i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length === 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for (i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); - -(function (tree) { - -tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) { - this.elements = elements; - this.extendList = extendList; - this.condition = condition; - this.currentFileInfo = currentFileInfo || {}; - this.isReferenced = isReferenced; - if (!condition) { - this.evaldCondition = true; - } -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - if (this.elements) { - this.elements = visitor.visitArray(this.elements); - } - if (this.extendList) { - this.extendList = visitor.visitArray(this.extendList); - } - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - createDerived: function(elements, extendList, evaldCondition) { - evaldCondition = (evaldCondition != null) ? evaldCondition : this.evaldCondition; - var newSelector = new(tree.Selector)(elements, extendList || this.extendList, null, this.index, this.currentFileInfo, this.isReferenced); - newSelector.evaldCondition = evaldCondition; - newSelector.mediaEmpty = this.mediaEmpty; - return newSelector; - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - olen, i; - - other.CacheElements(); - - olen = other._elements.length; - if (olen === 0 || len < olen) { - return 0; - } else { - for (i = 0; i < olen; i++) { - if (elements[i].value !== other._elements[i]) { - return 0; - } - } - } - - return olen; // return number of matched elements - }, - CacheElements: function(){ - var css = '', len, v, i; - - if( !this._elements ){ - - len = this.elements.length; - for(i = 0; i < len; i++){ - - v = this.elements[i]; - css += v.combinator.value; - - if( !v.value.value ){ - css += v.value; - continue; - } - - if( typeof v.value.value !== "string" ){ - css = ''; - break; - } - css += v.value.value; - } - - this._elements = css.match(/[,&#\.\w-]([\w-]|(\\.))*/g); - - if (this._elements) { - if (this._elements[0] === "&") { - this._elements.shift(); - } - - } else { - this._elements = []; - } - - } - }, - isJustParentSelector: function() { - return !this.mediaEmpty && - this.elements.length === 1 && - this.elements[0].value === '&' && - (this.elements[0].combinator.value === ' ' || this.elements[0].combinator.value === ''); - }, - eval: function (env) { - var evaldCondition = this.condition && this.condition.eval(env), - elements = this.elements, extendList = this.extendList; - - elements = elements && elements.map(function (e) { return e.eval(env); }); - extendList = extendList && extendList.map(function(extend) { return extend.eval(env); }); - - return this.createDerived(elements, extendList, evaldCondition); - }, - genCSS: function (env, output) { - var i, element; - if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") { - output.add(' ', this.currentFileInfo, this.index); - } - if (!this._css) { - //TODO caching? speed comparison? - for(i = 0; i < this.elements.length; i++) { - element = this.elements[i]; - element.genCSS(env, output); - } - } - }, - toCSS: tree.toCSS, - markReferenced: function () { - this.isReferenced = true; - }, - getIsReferenced: function() { - return !this.currentFileInfo.reference || this.isReferenced; - }, - getIsOutput: function() { - return this.evaldCondition; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - eval: function () { return this; } -}; - -})(require('../tree')); - -(function (tree) { - -tree.URL = function (val, currentFileInfo, isEvald) { - this.value = val; - this.currentFileInfo = currentFileInfo; - this.isEvald = isEvald; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add("url("); - this.value.genCSS(env, output); - output.add(")"); - }, - toCSS: tree.toCSS, - eval: function (ctx) { - var val = this.value.eval(ctx), - rootpath; - - if (!this.isEvald) { - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - val.value = ctx.normalizePath(val.value); - - // Add url args if enabled - if (ctx.urlArgs) { - if (!val.value.match(/^\s*data:/)) { - var delimiter = val.value.indexOf('?') === -1 ? '?' : '&'; - var urlArgs = delimiter + ctx.urlArgs; - if (val.value.indexOf('#') !== -1) { - val.value = val.value.replace('#', urlArgs + '#'); - } else { - val.value += urlArgs; - } - } - } - } - - return new(tree.URL)(val, this.currentFileInfo, true); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - genCSS: function (env, output) { - var i; - for(i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i+1 < this.value.length) { - output.add((env && env.compress) ? ',' : ', '); - } - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { - this.name = name; - this.index = index; - this.currentFileInfo = currentFileInfo || {}; -}; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, name = this.name; - - if (name.indexOf('@@') === 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - variable = tree.find(env.frames, function (frame) { - var v = frame.variable(name); - if (v) { - return v.value.eval(env); - } - }); - if (variable) { - this.evaluating = false; - return variable; - } else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); - -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // map - filename to contents of all the files - 'contentsIgnoredChars', // map - filename to lines at the begining of each file to ignore - 'relativeUrls', // option - whether to adjust URL's to be relative - 'rootpath', // option - rootpath to append to URL's - 'strictImports', // option - - 'insecure', // option - whether to allow imports from insecure ssl hosts - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true - 'mime', // browser only - mime type for sheet import - 'useFileCache', // browser only - whether to use the per file session cache - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' - absolute path to the entry file - // 'reference' - whether the file should not be output and only output parts that are referenced - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.contentsIgnoredChars) { this.contentsIgnoredChars = {}; } - if (!this.files) { this.files = {}; } - - if (typeof this.paths === "string") { this.paths = [this.paths]; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits', // whether units need to evaluate correctly - 'cleancss', // whether to compress with clean-css - 'sourceMap', // whether to output a source map - 'importMultiple', // whether we are currently importing multiple copies - 'urlArgs' // whether to add args into url tokens - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - tree.evalEnv.prototype.normalizePath = function( path ) { - var - segments = path.split("/").reverse(), - segment; - - path = []; - while (segments.length !== 0 ) { - segment = segments.pop(); - switch( segment ) { - case ".": - break; - case "..": - if ((path.length === 0) || (path[path.length - 1] === "..")) { - path.push( segment ); - } else { - path.pop(); - } - break; - default: - path.push( segment ); - break; - } - } - - return path.join("/"); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - }; - -})(require('./tree')); - -(function (tree) { - - var _visitArgs = { visitDeeper: true }, - _hasIndexed = false; - - function _noop(node) { - return node; - } - - function indexNodeTypes(parent, ticker) { - // add .typeIndex to tree node types for lookup table - var key, child; - for (key in parent) { - if (parent.hasOwnProperty(key)) { - child = parent[key]; - switch (typeof child) { - case "function": - // ignore bound functions directly on tree which do not have a prototype - // or aren't nodes - if (child.prototype && child.prototype.type) { - child.prototype.typeIndex = ticker++; - } - break; - case "object": - ticker = indexNodeTypes(child, ticker); - break; - } - } - } - return ticker; - } - - tree.visitor = function(implementation) { - this._implementation = implementation; - this._visitFnCache = []; - - if (!_hasIndexed) { - indexNodeTypes(tree, 1); - _hasIndexed = true; - } - }; - - tree.visitor.prototype = { - visit: function(node) { - if (!node) { - return node; - } - - var nodeTypeIndex = node.typeIndex; - if (!nodeTypeIndex) { - return node; - } - - var visitFnCache = this._visitFnCache, - impl = this._implementation, - aryIndx = nodeTypeIndex << 1, - outAryIndex = aryIndx | 1, - func = visitFnCache[aryIndx], - funcOut = visitFnCache[outAryIndex], - visitArgs = _visitArgs, - fnName; - - visitArgs.visitDeeper = true; - - if (!func) { - fnName = "visit" + node.type; - func = impl[fnName] || _noop; - funcOut = impl[fnName + "Out"] || _noop; - visitFnCache[aryIndx] = func; - visitFnCache[outAryIndex] = funcOut; - } - - if (func !== _noop) { - var newNode = func.call(impl, node, visitArgs); - if (impl.isReplacing) { - node = newNode; - } - } - - if (visitArgs.visitDeeper && node && node.accept) { - node.accept(this); - } - - if (funcOut != _noop) { - funcOut.call(impl, node); - } - - return node; - }, - visitArray: function(nodes, nonReplacing) { - if (!nodes) { - return nodes; - } - - var cnt = nodes.length, i; - - // Non-replacing - if (nonReplacing || !this._implementation.isReplacing) { - for (i = 0; i < cnt; i++) { - this.visit(nodes[i]); - } - return nodes; - } - - // Replacing - var out = []; - for (i = 0; i < cnt; i++) { - var evald = this.visit(nodes[i]); - if (!evald.splice) { - out.push(evald); - } else if (evald.length) { - this.flatten(evald, out); - } - } - return out; - }, - flatten: function(arr, out) { - if (!out) { - out = []; - } - - var cnt, i, item, - nestedCnt, j, nestedItem; - - for (i = 0, cnt = arr.length; i < cnt; i++) { - item = arr[i]; - if (!item.splice) { - out.push(item); - continue; - } - - for (j = 0, nestedCnt = item.length; j < nestedCnt; j++) { - nestedItem = item[j]; - if (!nestedItem.splice) { - out.push(nestedItem); - } else if (nestedItem.length) { - this.flatten(nestedItem, out); - } - } - } - - return out; - } - }; - -})(require('./tree')); -(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv, onceFileDetectionMap, recursionDetector) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - this.onceFileDetectionMap = onceFileDetectionMap || {}; - this.recursionDetector = {}; - if (recursionDetector) { - for(var fullFilename in recursionDetector) { - if (recursionDetector.hasOwnProperty(fullFilename)) { - this.recursionDetector[fullFilename] = true; - } - } - } - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode, - inlineCSS = importNode.options.inline; - - if (!importNode.css || inlineCSS) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - - if (importNode.options.multiple) { - env.importMultiple = true; - } - - this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, importedAtRoot, fullPath) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - - if (!env.importMultiple) { - if (importedAtRoot) { - importNode.skip = true; - } else { - importNode.skip = function() { - if (fullPath in importVisitor.onceFileDetectionMap) { - return true; - } - importVisitor.onceFileDetectionMap[fullPath] = true; - return false; - }; - } - } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - importNode.importedFilename = fullPath; - var duplicateImport = importedAtRoot || fullPath in importVisitor.recursionDetector; - - if (!inlineCSS && (env.importMultiple || !duplicateImport)) { - importVisitor.recursionDetector[fullPath] = true; - new(tree.importVisitor)(importVisitor._importer, subFinish, env, importVisitor.onceFileDetectionMap, importVisitor.recursionDetector) - .run(root); - return; - } - } - - subFinish(); - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree')); -(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1], - paths = [], selectors; - - this.contexts.push(paths); - - if (! rulesetNode.root) { - selectors = rulesetNode.selectors; - if (selectors) { - selectors = selectors.filter(function(selector) { return selector.getIsOutput(); }); - rulesetNode.selectors = selectors.length ? selectors : (selectors = null); - if (selectors) { rulesetNode.joinSelectors(paths, context, selectors); } - } - if (!selectors) { rulesetNode.rules = null; } - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree')); -(function (tree) { - tree.toCSSVisitor = function(env) { - this._visitor = new tree.visitor(this); - this._env = env; - }; - - tree.toCSSVisitor.prototype = { - isReplacing: true, - run: function (root) { - return this._visitor.visit(root); - }, - - visitRule: function (ruleNode, visitArgs) { - if (ruleNode.variable) { - return []; - } - return ruleNode; - }, - - visitMixinDefinition: function (mixinNode, visitArgs) { - // mixin definitions do not get eval'd - this means they keep state - // so we have to clear that state here so it isn't used if toCSS is called twice - mixinNode.frames = []; - return []; - }, - - visitExtend: function (extendNode, visitArgs) { - return []; - }, - - visitComment: function (commentNode, visitArgs) { - if (commentNode.isSilent(this._env)) { - return []; - } - return commentNode; - }, - - visitMedia: function(mediaNode, visitArgs) { - mediaNode.accept(this._visitor); - visitArgs.visitDeeper = false; - - if (!mediaNode.rules.length) { - return []; - } - return mediaNode; - }, - - visitDirective: function(directiveNode, visitArgs) { - if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) { - return []; - } - if (directiveNode.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (this.charset) { - if (directiveNode.debugInfo) { - var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n"); - comment.debugInfo = directiveNode.debugInfo; - return this._visitor.visit(comment); - } - return []; - } - this.charset = true; - } - return directiveNode; - }, - - checkPropertiesInRoot: function(rules) { - var ruleNode; - for(var i = 0; i < rules.length; i++) { - ruleNode = rules[i]; - if (ruleNode instanceof tree.Rule && !ruleNode.variable) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null}; - } - } - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var rule, rulesets = []; - if (rulesetNode.firstRoot) { - this.checkPropertiesInRoot(rulesetNode.rules); - } - if (! rulesetNode.root) { - if (rulesetNode.paths) { - rulesetNode.paths = rulesetNode.paths - .filter(function(p) { - var i; - if (p[0].elements[0].combinator.value === ' ') { - p[0].elements[0].combinator = new(tree.Combinator)(''); - } - for(i = 0; i < p.length; i++) { - if (p[i].getIsReferenced() && p[i].getIsOutput()) { - return true; - } - } - return false; - }); - } - - // Compile rules and rulesets - var nodeRules = rulesetNode.rules, nodeRuleCnt = nodeRules ? nodeRules.length : 0; - for (var i = 0; i < nodeRuleCnt; ) { - rule = nodeRules[i]; - if (rule && rule.rules) { - // visit because we are moving them out from being a child - rulesets.push(this._visitor.visit(rule)); - nodeRules.splice(i, 1); - nodeRuleCnt--; - continue; - } - i++; - } - // accept the visitor to remove rules and refactor itself - // then we can decide now whether we want it or not - if (nodeRuleCnt > 0) { - rulesetNode.accept(this._visitor); - } else { - rulesetNode.rules = null; - } - visitArgs.visitDeeper = false; - - nodeRules = rulesetNode.rules; - if (nodeRules) { - this._mergeRules(nodeRules); - nodeRules = rulesetNode.rules; - } - if (nodeRules) { - this._removeDuplicateRules(nodeRules); - nodeRules = rulesetNode.rules; - } - - // now decide whether we keep the ruleset - if (nodeRules && nodeRules.length > 0 && rulesetNode.paths.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } else { - rulesetNode.accept(this._visitor); - visitArgs.visitDeeper = false; - if (rulesetNode.firstRoot || (rulesetNode.rules && rulesetNode.rules.length > 0)) { - rulesets.splice(0, 0, rulesetNode); - } - } - if (rulesets.length === 1) { - return rulesets[0]; - } - return rulesets; - }, - - _removeDuplicateRules: function(rules) { - if (!rules) { return; } - - // remove duplicates - var ruleCache = {}, - ruleList, rule, i; - - for(i = rules.length - 1; i >= 0 ; i--) { - rule = rules[i]; - if (rule instanceof tree.Rule) { - if (!ruleCache[rule.name]) { - ruleCache[rule.name] = rule; - } else { - ruleList = ruleCache[rule.name]; - if (ruleList instanceof tree.Rule) { - ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)]; - } - var ruleCSS = rule.toCSS(this._env); - if (ruleList.indexOf(ruleCSS) !== -1) { - rules.splice(i, 1); - } else { - ruleList.push(ruleCSS); - } - } - } - } - }, - - _mergeRules: function (rules) { - if (!rules) { return; } - - var groups = {}, - parts, - rule, - key; - - for (var i = 0; i < rules.length; i++) { - rule = rules[i]; - - if ((rule instanceof tree.Rule) && rule.merge) { - key = [rule.name, - rule.important ? "!" : ""].join(","); - - if (!groups[key]) { - groups[key] = []; - } else { - rules.splice(i--, 1); - } - - groups[key].push(rule); - } - } - - Object.keys(groups).map(function (k) { - - function toExpression(values) { - return new (tree.Expression)(values.map(function (p) { - return p.value; - })); - } - - function toValue(values) { - return new (tree.Value)(values.map(function (p) { - return p; - })); - } - - parts = groups[k]; - - if (parts.length > 1) { - rule = parts[0]; - var spacedGroups = []; - var lastSpacedGroup = []; - parts.map(function (p) { - if (p.merge==="+") { - if (lastSpacedGroup.length > 0) { - spacedGroups.push(toExpression(lastSpacedGroup)); - } - lastSpacedGroup = []; - } - lastSpacedGroup.push(p); - }); - spacedGroups.push(toExpression(lastSpacedGroup)); - rule.value = toValue(spacedGroups); - } - }); - } - }; - -})(require('./tree')); -(function (tree) { - /*jshint loopfunc:true */ - - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - var rules = rulesetNode.rules, ruleCnt = rules ? rules.length : 0; - for(i = 0; i < ruleCnt; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rules[i]); - rulesetNode.extendOnEveryPath = true; - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - var paths = rulesetNode.paths; - for(i = 0; i < paths.length; i++) { - var selectorPath = paths[i], - selector = selectorPath[selectorPath.length - 1], - selExtendList = selector.extendList; - - extendList = selExtendList ? selExtendList.slice(0).concat(allSelectorsExtendList) - : allSelectorsExtendList; - - if (extendList) { - extendList = extendList.map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - } - - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if( extend.parent_ids.indexOf( targetExtend.object_id ) >= 0 ){ continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parent_ids = newExtend.parent_ids.concat(targetExtend.parent_ids, extend.parent_ids); - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (rulesetNode.extendOnEveryPath) { continue; } - var extendList = selectorPath[selectorPath.length-1].extendList; - if (extendList && extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator === '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - elementValue1 = elementValue1.value; - elementValue2 = elementValue2.value; - if (elementValue1 instanceof tree.Selector) { - if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) { - return false; - } - for(var i = 0; i currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - newElements = selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)); - - if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) { - path[path.length - 1].elements = - path[path.length - 1].elements.concat(newElements); - } else { - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - newElements - )); - } - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.sourceMapOutput = function (options) { - this._css = []; - this._rootNode = options.rootNode; - this._writeSourceMap = options.writeSourceMap; - this._contentsMap = options.contentsMap; - this._contentsIgnoredCharsMap = options.contentsIgnoredCharsMap; - this._sourceMapFilename = options.sourceMapFilename; - this._outputFilename = options.outputFilename; - this._sourceMapURL = options.sourceMapURL; - if (options.sourceMapBasepath) { - this._sourceMapBasepath = options.sourceMapBasepath.replace(/\\/g, '/'); - } - this._sourceMapRootpath = options.sourceMapRootpath; - this._outputSourceFiles = options.outputSourceFiles; - this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator; - - if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') { - this._sourceMapRootpath += '/'; - } - - this._lineNumber = 0; - this._column = 0; - }; - - tree.sourceMapOutput.prototype.normalizeFilename = function(filename) { - filename = filename.replace(/\\/g, '/'); - - if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) { - filename = filename.substring(this._sourceMapBasepath.length); - if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') { - filename = filename.substring(1); - } - } - return (this._sourceMapRootpath || "") + filename; - }; - - tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) { - - //ignore adding empty strings - if (!chunk) { - return; - } - - var lines, - sourceLines, - columns, - sourceColumns, - i; - - if (fileInfo) { - var inputSource = this._contentsMap[fileInfo.filename]; - - // remove vars/banner added to the top of the file - if (this._contentsIgnoredCharsMap[fileInfo.filename]) { - // adjust the index - index -= this._contentsIgnoredCharsMap[fileInfo.filename]; - if (index < 0) { index = 0; } - // adjust the source - inputSource = inputSource.slice(this._contentsIgnoredCharsMap[fileInfo.filename]); - } - inputSource = inputSource.substring(0, index); - sourceLines = inputSource.split("\n"); - sourceColumns = sourceLines[sourceLines.length-1]; - } - - lines = chunk.split("\n"); - columns = lines[lines.length-1]; - - if (fileInfo) { - if (!mapLines) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column}, - original: { line: sourceLines.length, column: sourceColumns.length}, - source: this.normalizeFilename(fileInfo.filename)}); - } else { - for(i = 0; i < lines.length; i++) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0}, - original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0}, - source: this.normalizeFilename(fileInfo.filename)}); - } - } - } - - if (lines.length === 1) { - this._column += columns.length; - } else { - this._lineNumber += lines.length - 1; - this._column = columns.length; - } - - this._css.push(chunk); - }; - - tree.sourceMapOutput.prototype.isEmpty = function() { - return this._css.length === 0; - }; - - tree.sourceMapOutput.prototype.toCSS = function(env) { - this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null }); - - if (this._outputSourceFiles) { - for(var filename in this._contentsMap) { - if (this._contentsMap.hasOwnProperty(filename)) - { - var source = this._contentsMap[filename]; - if (this._contentsIgnoredCharsMap[filename]) { - source = source.slice(this._contentsIgnoredCharsMap[filename]); - } - this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), source); - } - } - } - - this._rootNode.genCSS(env, this); - - if (this._css.length > 0) { - var sourceMapURL, - sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); - - if (this._sourceMapURL) { - sourceMapURL = this._sourceMapURL; - } else if (this._sourceMapFilename) { - sourceMapURL = this.normalizeFilename(this._sourceMapFilename); - } - - if (this._writeSourceMap) { - this._writeSourceMap(sourceMapContent); - } else { - sourceMapURL = "data:application/json;base64," + require('./encoder.js').encodeBase64(sourceMapContent); - } - - if (sourceMapURL) { - this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */"); - } - } - - return this._css.join(''); - }; - -})(require('./tree')); - -// -// browser.js - client-side engine -// -/*global less, window, document, XMLHttpRequest, location */ - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - (location.port && - location.port.length > 0) || - isFileProtocol ? 'development' - : 'production'); - -var logLevel = { - debug: 3, - info: 2, - errors: 1, - none: 0 -}; - -// The amount of logging in the javascript console. -// 3 - Debug, information and errors -// 2 - Information and errors -// 1 - Errors -// 0 - None -// Defaults to 2 -less.logLevel = typeof(less.logLevel) != 'undefined' ? less.logLevel : (less.env === 'development' ? logLevel.debug : logLevel.errors); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - if (less.functions.hasOwnProperty(func)) { - less.tree.functions[func] = less.functions[func]; - } - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -var typePattern = /^text\/(x-)?less$/; -var cache = null; -var fileCache = {}; - -function log(str, level) { - if (typeof(console) !== 'undefined' && less.logLevel >= level) { - console.log('less: ' + str); - } -} - -function extractId(href) { - return href.replace(/^[a-z-]+:\/+?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function errorConsole(e, rootHref) { - var template = '{line} {content}'; - var filename = e.filename || rootHref; - var errors = []; - var content = (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - " in " + filename + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n' + - errors.join('\n'); - } else if (e.stack) { - content += e.stack; - } - log(content, logLevel.errors); -} - -function createCSS(styles, sheet, lastModified) { - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If this has already been inserted into the DOM, we may need to replace it - var oldCss = document.getElementById(id); - var keepOldCss = false; - - // Create a new stylesheet node for insertion or (if necessary) replacement - var css = document.createElement('style'); - css.setAttribute('type', 'text/css'); - if (sheet.media) { - css.setAttribute('media', sheet.media); - } - css.id = id; - - if (!css.styleSheet) { - css.appendChild(document.createTextNode(styles)); - - // If new contents match contents of oldCss, don't replace oldCss - keepOldCss = (oldCss !== null && oldCss.childNodes.length > 0 && css.childNodes.length > 0 && - oldCss.firstChild.nodeValue === css.firstChild.nodeValue); - } - - var head = document.getElementsByTagName('head')[0]; - - // If there is no oldCss, just append; otherwise, only append if we need - // to replace oldCss with an updated stylesheet - if (oldCss === null || keepOldCss === false) { - var nextEl = sheet && sheet.nextSibling || null; - if (nextEl) { - nextEl.parentNode.insertBefore(css, nextEl); - } else { - head.appendChild(css); - } - } - if (oldCss && keepOldCss === false) { - oldCss.parentNode.removeChild(oldCss); - } - - // For IE. - // This needs to happen *after* the style element is added to the DOM, otherwise IE 7 and 8 may crash. - // See http://social.msdn.microsoft.com/Forums/en-US/7e081b65-878a-4c22-8e68-c10d39c2ed32/internet-explorer-crashes-appending-style-element-to-head - if (css.styleSheet) { - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.', logLevel.info); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save', logLevel.errors); - } - } -} - -function postProcessCSS(styles) { - if (less.postProcessor && typeof less.postProcessor === 'function') { - styles = less.postProcessor.call(styles, styles) || styles; - } - return styles; -} - -function errorHTML(e, rootHref) { - var id = 'less-error-message:' + extractId(rootHref || ""); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, errors = []; - var filename = e.filename || rootHref; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - '

    ' + '

    in ' + filenameNoPath + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - '
      ' + errors.join('') + '
    '; - } else if (e.stack) { - content += '
    ' + e.stack.split('\n').slice(1).join('
    '); - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #dd6666;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.line {', - 'color: #ff0000;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); - - if (less.env == 'development') { - timer = setInterval(function () { - if (document.body) { - if (document.getElementById(id)) { - document.body.replaceChild(elem, document.getElementById(id)); - } else { - document.body.insertBefore(elem, document.body.firstChild); - } - clearInterval(timer); - } - }, 10); - } -} - -function error(e, rootHref) { - if (!less.errorReporting || less.errorReporting === "html") { - errorHTML(e, rootHref); - } else if (less.errorReporting === "console") { - errorConsole(e, rootHref); - } else if (typeof less.errorReporting === 'function') { - less.errorReporting("add", e, rootHref); - } -} - -function removeErrorHTML(path) { - var node = document.getElementById('less-error-message:' + extractId(path)); - if (node) { - node.parentNode.removeChild(node); - } -} - -function removeErrorConsole(path) { - //no action -} - -function removeError(path) { - if (!less.errorReporting || less.errorReporting === "html") { - removeErrorHTML(path); - } else if (less.errorReporting === "console") { - removeErrorConsole(path); 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c=this.frames||b.frames.slice(0);return new a.DetachedRuleset(this.ruleset,c)},callEval:function(b){return this.ruleset.eval(this.frames?new a.evalEnv(b,this.frames.concat(b.frames)):b)}}}(c("../tree")),function(a){a.Dimension=function(c,d){this.value=parseFloat(c),this.unit=d&&d instanceof a.Unit?d:new a.Unit(d?[d]:b)},a.Dimension.prototype={type:"Dimension",accept:function(a){this.unit=a.visit(this.unit)},eval:function(){return this},toColor:function(){return new a.Color([this.value,this.value,this.value])},genCSS:function(b,c){if(b&&b.strictUnits&&!this.unit.isSingular())throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString());var d=a.fround(b,this.value),e=String(d);if(0!==d&&1e-6>d&&d>-1e-6&&(e=d.toFixed(20).replace(/0+$/,"")),b&&b.compress){if(0===d&&this.unit.isLength())return void c.add(e);d>0&&1>d&&(e=e.substr(1))}c.add(e),this.unit.genCSS(b,c)},toCSS:a.toCSS,operate:function(b,c,d){var e=a.operate(b,c,this.value,d.value),f=this.unit.clone();if("+"===c||"-"===c)if(0===f.numerator.length&&0===f.denominator.length)f.numerator=d.unit.numerator.slice(0),f.denominator=d.unit.denominator.slice(0);else if(0===d.unit.numerator.length&&0===f.denominator.length);else{if(d=d.convertTo(this.unit.usedUnits()),b.strictUnits&&d.unit.toString()!==f.toString())throw new Error("Incompatible units. Change the units or use the unit function. 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r.push(l);q=!0}}for(t.reset(),n=[0,0,0],g=0;g0)m=w;else if(m=v,n[v]+n[w]>1)throw{type:"Runtime",message:"Ambiguous use of `default()` found when matching for `"+this.format(e)+"`",index:this.index,filename:this.currentFileInfo.filename};for(g=0;gh;h++)if(g=d[h],k=g&&g.name){for(l=!1,i=0;ii;i++)f.push(d[i].value.eval(b));n.prependRule(new a.Rule(k,new a.Expression(f).eval(b)))}else{if(j=g&&g.value)j=j.eval(b);else{if(!o[h].value)throw{type:"Runtime",message:"wrong number of arguments for "+this.name+" ("+p+" for "+this.arity+")"};j=o[h].value.eval(c),n.resetCache()}n.prependRule(new a.Rule(k,j)),e[h]=j}if(o[h].variadic&&d)for(i=m;p>i;i++)e[i]=d[i].value.eval(b);m++}return n},eval:function(b){return new a.mixin.Definition(this.name,this.params,this.rules,this.condition,this.variadic,this.frames||b.frames.slice(0))},evalCall:function(b,c,d){var e,f,g=[],h=this.frames?this.frames.concat(b.frames):b.frames,i=this.evalParams(b,new a.evalEnv(b,h),c,g);return i.prependRule(new 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-}; - - -if (typeof(window.less) === 'undefined' || typeof(window.less.nodeType) !== 'undefined') { window.less = {}; } -less = window.less; -tree = window.less.tree = {}; -less.mode = 'browser'; - -var less, tree; - -// Node.js does not have a header file added which defines less -if (less === undefined) { - less = exports; - tree = require('./tree'); - less.mode = 'node'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `currentPos` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - saveStack = [], // holds state for backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // current chunk - currentPos, // index of current chunk, in `input` - parser, - parsers, - rootFilename = env && env.filename; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed around by reference. - if (!(env instanceof tree.parseEnv)) { - env = new tree.parseEnv(env); - } - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - contentsIgnoredChars: env.contentsIgnoredChars, // lines inserted, not in the original less - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, currentFileInfo, importOptions, callback) { - var parserImports = this; - this.queue.push(path); - - var fileParsedFunc = function (e, root, fullPath) { - parserImports.queue.splice(parserImports.queue.indexOf(path), 1); // Remove the path from the queue - - var importedPreviously = fullPath === rootFilename; - - parserImports.files[fullPath] = root; // Store the root - - if (e && !parserImports.error) { parserImports.error = e; } - - callback(e, root, importedPreviously, fullPath); - }; - - if (less.Parser.importer) { - less.Parser.importer(path, currentFileInfo, fileParsedFunc, env); - } else { - less.Parser.fileLoader(path, currentFileInfo, function(e, contents, fullPath, newFileInfo) { - if (e) {fileParsedFunc(e); return;} - - var newEnv = new tree.parseEnv(env); - - newEnv.currentFileInfo = newFileInfo; - newEnv.processImports = false; - newEnv.contents[fullPath] = contents; - - if (currentFileInfo.reference || importOptions.reference) { - newFileInfo.reference = true; - } - - if (importOptions.inline) { - fileParsedFunc(null, contents, fullPath); - } else { - new(less.Parser)(newEnv).parse(contents, function (e, root) { - fileParsedFunc(e, root, fullPath); - }); - } - }, env); - } - } - }; - - function save() { currentPos = i; saveStack.push( { current: current, i: i, j: j }); } - function restore() { var state = saveStack.pop(); current = state.current; currentPos = i = state.i; j = state.j; } - function forget() { saveStack.pop(); } - - function sync() { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - } - function isWhitespace(str, pos) { - var code = str.charCodeAt(pos | 0); - return (code <= 32) && (code === 32 || code === 10 || code === 9); - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var tokType = typeof tok, - match, length; - - // Either match a single character in the input, - // or match a regexp in the current chunk (`current`). - // - if (tokType === "string") { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - // regexp - sync (); - if (! (match = tok.exec(current))) { - return null; - } - - length = match[0].length; - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - - // Specialization of $(tok) - function $re(tok) { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - var m = tok.exec(current); - if (!m) { - return null; - } - - skipWhitespace(m[0].length); - if(typeof m === "string") { - return m; - } - - return m.length === 1 ? m[0] : m; - } - - var _$re = $re; - - // Specialization of $(tok) - function $char(tok) { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - curr = i - currentPos, - endIndex = i + current.length - curr, - mem = (i += length), - inp = input, - c; - - for (; i < endIndex; i++) { - c = inp.charCodeAt(i); - if (c > 32) { - break; - } - - if ((c !== 32) && (c !== 10) && (c !== 9) && (c !== 13)) { - break; - } - } - - current = current.slice(length + i - mem + curr); - currentPos = i; - - if (!current.length && (j < chunks.length - 1)) { - current = chunks[++j]; - skipWhitespace(0); // skip space at the beginning of a chunk - return true; // things changed - } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - // some older browsers return typeof 'function' for RegExp - var result = (Object.prototype.toString.call(arg) === '[object Function]') ? arg.call(parsers) : $(arg); - if (result) { - return result; - } - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } - - // Specialization of expect() - function expectChar(arg, msg) { - if (input.charAt(i) === arg) { - skipWhitespace(1); - return arg; - } - error(msg || "expected '" + arg + "' got '" + input.charAt(i) + "'"); - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - return tok.test(current); - } - } - - // Specialization of peek() - function peekChar(tok) { - return input.charAt(i) === tok; - } - - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, inputStream) { - var n = index + 1, - line = null, - column = -1; - - while (--n >= 0 && inputStream.charAt(n) !== '\n') { - column++; - } - - if (typeof index === 'number') { - line = (inputStream.slice(0, index).match(/\n/g) || "").length; - } - - return { - line: line, - column: column - }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - callLine = e.call && getLocation(e.call, input).line, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = callLine + 1; - this.callExtract = lines[callLine]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // @param str A string containing 'less' markup - // @param callback call `callback` when done. - // @param [additionalData] An optional map which can contains vars - a map (key, value) of variables to apply - // - parse: function (str, callback, additionalData) { - var root, line, lines, error = null, globalVars, modifyVars, preText = ""; - - i = j = currentPos = furthest = 0; - - globalVars = (additionalData && additionalData.globalVars) ? less.Parser.serializeVars(additionalData.globalVars) + '\n' : ''; - modifyVars = (additionalData && additionalData.modifyVars) ? '\n' + less.Parser.serializeVars(additionalData.modifyVars) : ''; - - if (globalVars || (additionalData && additionalData.banner)) { - preText = ((additionalData && additionalData.banner) ? additionalData.banner : "") + globalVars; - parser.imports.contentsIgnoredChars[env.currentFileInfo.filename] = preText.length; - } - - str = str.replace(/\r\n/g, '\n'); - // Remove potential UTF Byte Order Mark - input = str = preText + str.replace(/^\uFEFF/, '') + modifyVars; - parser.imports.contents[env.currentFileInfo.filename] = str; - - // Split the input into chunks. - chunks = (function (input) { - var len = input.length, level = 0, parenLevel = 0, - lastOpening, lastOpeningParen, lastMultiComment, lastMultiCommentEndBrace, - chunks = [], emitFrom = 0, - parserCurrentIndex, currentChunkStartIndex, cc, cc2, matched; - - function fail(msg, index) { - error = new(LessError)({ - index: index || parserCurrentIndex, - type: 'Parse', - message: msg, - filename: env.currentFileInfo.filename - }, env); - } - - function emitChunk(force) { - var len = parserCurrentIndex - emitFrom; - if (((len < 512) && !force) || !len) { - return; - } - chunks.push(input.slice(emitFrom, parserCurrentIndex + 1)); - emitFrom = parserCurrentIndex + 1; - } - - for (parserCurrentIndex = 0; parserCurrentIndex < len; parserCurrentIndex++) { - cc = input.charCodeAt(parserCurrentIndex); - if (((cc >= 97) && (cc <= 122)) || (cc < 34)) { - // a-z or whitespace - continue; - } - - switch (cc) { - case 40: // ( - parenLevel++; - lastOpeningParen = parserCurrentIndex; - continue; - case 41: // ) - if (--parenLevel < 0) { - return fail("missing opening `(`"); - } - continue; - case 59: // ; - if (!parenLevel) { emitChunk(); } - continue; - case 123: // { - level++; - lastOpening = parserCurrentIndex; - continue; - case 125: // } - if (--level < 0) { - return fail("missing opening `{`"); - } - if (!level && !parenLevel) { emitChunk(); } - continue; - case 92: // \ - if (parserCurrentIndex < len - 1) { parserCurrentIndex++; continue; } - return fail("unescaped `\\`"); - case 34: - case 39: - case 96: // ", ' and ` - matched = 0; - currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 1; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 > 96) { continue; } - if (cc2 == cc) { matched = 1; break; } - if (cc2 == 92) { // \ - if (parserCurrentIndex == len - 1) { - return fail("unescaped `\\`"); - } - parserCurrentIndex++; - } - } - if (matched) { continue; } - return fail("unmatched `" + String.fromCharCode(cc) + "`", currentChunkStartIndex); - case 47: // /, check for comment - if (parenLevel || (parserCurrentIndex == len - 1)) { continue; } - cc2 = input.charCodeAt(parserCurrentIndex + 1); - if (cc2 == 47) { - // //, find lnfeed - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if ((cc2 <= 13) && ((cc2 == 10) || (cc2 == 13))) { break; } - } - } else if (cc2 == 42) { - // /*, find */ - lastMultiComment = currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len - 1; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 == 125) { lastMultiCommentEndBrace = parserCurrentIndex; } - if (cc2 != 42) { continue; } - if (input.charCodeAt(parserCurrentIndex + 1) == 47) { break; } - } - if (parserCurrentIndex == len - 1) { - return fail("missing closing `*/`", currentChunkStartIndex); - } - parserCurrentIndex++; - } - continue; - case 42: // *, check for unmatched */ - if ((parserCurrentIndex < len - 1) && (input.charCodeAt(parserCurrentIndex + 1) == 47)) { - return fail("unmatched `/*`"); - } - continue; - } - } - - if (level !== 0) { - if ((lastMultiComment > lastOpening) && (lastMultiCommentEndBrace > lastMultiComment)) { - return fail("missing closing `}` or `*/`", lastOpening); - } else { - return fail("missing closing `}`", lastOpening); - } - } else if (parenLevel !== 0) { - return fail("missing closing `)`", lastOpeningParen); - } - - emitChunk(true); - return chunks; - })(str); - - if (error) { - return callback(new(LessError)(error, env)); - } - - current = chunks[0]; - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)(null, this.parsers.primary()); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - return function (options, variables) { - options = options || {}; - var evaldRoot, - css, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, null, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var preEvalVisitors = [], - visitors = [ - new(tree.joinSelectorVisitor)(), - new(tree.processExtendsVisitor)(), - new(tree.toCSSVisitor)({compress: Boolean(options.compress)}) - ], i, root = this; - - if (options.plugins) { - for(i =0; i < options.plugins.length; i++) { - if (options.plugins[i].isPreEvalVisitor) { - preEvalVisitors.push(options.plugins[i]); - } else { - if (options.plugins[i].isPreVisitor) { - visitors.splice(0, 0, options.plugins[i]); - } else { - visitors.push(options.plugins[i]); - } - } - } - } - - for(i = 0; i < preEvalVisitors.length; i++) { - preEvalVisitors[i].run(root); - } - - evaldRoot = evaluate.call(root, evalEnv); - - for(i = 0; i < visitors.length; i++) { - visitors[i].run(evaldRoot); - } - - if (options.sourceMap) { - evaldRoot = new tree.sourceMapOutput( - { - contentsIgnoredCharsMap: parser.imports.contentsIgnoredChars, - writeSourceMap: options.writeSourceMap, - rootNode: evaldRoot, - contentsMap: parser.imports.contents, - sourceMapFilename: options.sourceMapFilename, - sourceMapURL: options.sourceMapURL, - outputFilename: options.sourceMapOutputFilename, - sourceMapBasepath: options.sourceMapBasepath, - sourceMapRootpath: options.sourceMapRootpath, - outputSourceFiles: options.outputSourceFiles, - sourceMapGenerator: options.sourceMapGenerator - }); - } - - css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits), - numPrecision: 8}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.cleancss && less.mode === 'node') { - var CleanCSS = require('clean-css'), - cleancssOptions = options.cleancssOptions || {}; - - if (cleancssOptions.keepSpecialComments === undefined) { - cleancssOptions.keepSpecialComments = "*"; - } - cleancssOptions.processImport = false; - cleancssOptions.noRebase = true; - if (cleancssOptions.noAdvanced === undefined) { - cleancssOptions.noAdvanced = true; - } - - return new CleanCSS(cleancssOptions).minify(css); - } else if (options.compress) { - return css.replace(/(^(\s)+)|((\s)+$)/g, ""); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - var loc = getLocation(i, input); - lines = input.split('\n'); - line = loc.line + 1; - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: loc.column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - return callback(e); - } - else { - return callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - return finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some Less code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: parsers = { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var mixin = this.mixin, $re = _$re, root = [], node; - - while (current) - { - node = this.extendRule() || mixin.definition() || this.rule() || this.ruleset() || - mixin.call() || this.comment() || this.rulesetCall() || this.directive(); - if (node) { - root.push(node); - } else { - if (!($re(/^[\s\n]+/) || $re(/^;+/))) { - break; - } - } - if (peekChar('}')) { - break; - } - } - - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') { return; } - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($re(/^\/\/.*/), true, i, env.currentFileInfo); - } - comment = $re(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/); - if (comment) { - return new(tree.Comment)(comment, false, i, env.currentFileInfo); - } - }, - - comments: function () { - var comment, comments = []; - - while(true) { - comment = this.comment(); - if (!comment) { - break; - } - comments.push(comment); - } - - return comments; - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; } - - if (e) { $char('~'); } - - str = $re(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/); - if (str) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - k = $re(/^%|^[_A-Za-z-][_A-Za-z0-9-]*/); - if (k) { - var color = tree.Color.fromKeyword(k); - if (color) { - return color; - } - return new(tree.Keyword)(k); - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(current); - if (!name) { return; } - - name = name[1]; - nameLC = name.toLowerCase(); - if (nameLC === 'url') { - return null; - } - - i += name.length; - - if (nameLC === 'alpha') { - alpha_ret = parsers.alpha(); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $char('('); // Parse the '(' and consume whitespace. - - args = this.arguments(); - - if (! $char(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (true) { - arg = this.assignment() || parsers.expression(); - if (!arg) { - break; - } - args.push(arg); - if (! $char(',')) { - break; - } - } - return args; - }, - literal: function () { - return this.dimension() || - this.color() || - this.quoted() || - this.unicodeDescriptor(); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - key = $re(/^\w+(?=\s?=)/i); - if (!key) { - return; - } - if (!$char('=')) { - return; - } - value = parsers.entity(); - if (value) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$re(/^url\(/)) { - return; - } - - value = this.quoted() || this.variable() || - $re(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expectChar(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $re(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var curly, index = i; - - if (input.charAt(i) === '@' && (curly = $re(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $re(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - var colorCandidateString = rgb.input.match(/^#([\w]+).*/); // strip colons, brackets, whitespaces and other characters that should not definitely be part of color string - colorCandidateString = colorCandidateString[1]; - if (!colorCandidateString.match(/^[A-Fa-f0-9]+$/)) { // verify if candidate consists only of allowed HEX characters - error("Invalid HEX color code"); - } - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) { - return; - } - - value = $re(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/); - if (value) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - ud = $re(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/); - if (ud) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '`') { return; } - if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) { - error("You are using JavaScript, which has been disabled."); - } - - if (e) { $char('~'); } - - str = $re(/^`([^`]*)`/); - if (str) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*:/))) { return name[1]; } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink(); - // - rulesetCall: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*\(\s*\)\s*;/))) { - return new tree.RulesetCall(name[1]); - } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList, extend; - - if (!(isRule ? $re(/^&:extend\(/) : $re(/^:extend\(/))) { return; } - - do { - option = null; - elements = null; - while (! (option = $re(/^(all)(?=\s*(\)|,))/))) { - e = this.element(); - if (!e) { break; } - if (elements) { elements.push(e); } else { elements = [ e ]; } - } - - option = option && option[1]; - - extend = new(tree.Extend)(new(tree.Selector)(elements), option, index); - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - - } while($char(",")); - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var s = input.charAt(i), important = false, index = i, elemIndex, - elements, elem, e, c, args; - - if (s !== '.' && s !== '#') { return; } - - save(); // stop us absorbing part of an invalid selector - - while (true) { - elemIndex = i; - e = $re(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/); - if (!e) { - break; - } - elem = new(tree.Element)(c, e, elemIndex, env.currentFileInfo); - if (elements) { elements.push(elem); } else { elements = [ elem ]; } - c = $char('>'); - } - - if (elements) { - if ($char('(')) { - args = this.args(true).args; - expectChar(')'); - } - - if (parsers.important()) { - important = true; - } - - if (parsers.end()) { - forget(); - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - } - - restore(); - }, - args: function (isCall) { - var parsers = parser.parsers, entities = parsers.entities, - returner = { args:null, variadic: false }, - expressions = [], argsSemiColon = [], argsComma = [], - isSemiColonSeperated, expressionContainsNamed, name, nameLoop, value, arg; - - save(); - - while (true) { - if (isCall) { - arg = parsers.detachedRuleset() || parsers.expression(); - } else { - parsers.comments(); - if (input.charAt(i) === '.' && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = entities.variable() || entities.literal() || entities.keyword(); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value && arg.value.length == 1) { - val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($char(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - - // we do not support setting a ruleset as a default variable - it doesn't make sense - // However if we do want to add it, there is nothing blocking it, just don't error - // and remove isCall dependency below - value = (isCall && parsers.detachedRuleset()) || parsers.expression(); - - if (!value) { - if (isCall) { - error("could not understand value for named argument"); - } else { - restore(); - returner.args = []; - return returner; - } - } - nameLoop = (name = val.name); - } else if (!isCall && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($char(',')) { - continue; - } - - if ($char(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - forget(); - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) { - return; - } - - save(); - - match = $re(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/); - if (match) { - name = match[1]; - - var argInfo = this.args(false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. - // also - // .mixincall(@a: {rule: set;}); - // so we have to be nice and restore - if (!$char(')')) { - furthest = i; - restore(); - return; - } - - parsers.comments(); - - if ($re(/^when/)) { // Guard - cond = expect(parsers.conditions, 'expected condition'); - } - - ruleset = parsers.block(); - - if (ruleset) { - forget(); - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } else { - forget(); - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - var entities = this.entities; - - return entities.literal() || entities.variable() || entities.url() || - entities.call() || entities.keyword() || entities.javascript() || - this.comment(); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $char(';') || peekChar('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $re(/^\(opacity=/i)) { return; } - value = $re(/^\d+/) || this.entities.variable(); - if (value) { - expectChar(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, c, v, index = i; - - c = this.combinator(); - - e = $re(/^(?:\d+\.\d+|\d+)%/) || $re(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $char('*') || $char('&') || this.attribute() || $re(/^\([^()@]+\)/) || $re(/^[\.#](?=@)/) || - this.entities.variableCurly(); - - if (! e) { - save(); - if ($char('(')) { - if ((v = this.selector()) && $char(')')) { - e = new(tree.Paren)(v); - forget(); - } else { - restore(); - } - } else { - forget(); - } - } - - if (e) { return new(tree.Element)(c, e, index, env.currentFileInfo); } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|' || c === '^') { - i++; - if (input.charAt(i) === '^') { - c = '^^'; - i++; - } - while (isWhitespace(input, i)) { i++; } - return new(tree.Combinator)(c); - } else if (isWhitespace(input, i - 1)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - // - // A CSS selector (see selector below) - // with less extensions e.g. the ability to extend and guard - // - lessSelector: function () { - return this.selector(true); - }, - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function (isLess) { - var index = i, $re = _$re, elements, extendList, c, e, extend, when, condition; - - while ((isLess && (extend = this.extend())) || (isLess && (when = $re(/^when/))) || (e = this.element())) { - if (when) { - condition = expect(this.conditions, 'expected condition'); - } else if (condition) { - error("CSS guard can only be used at the end of selector"); - } else if (extend) { - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - } else { - if (extendList) { error("Extend can only be used at the end of selector"); } - c = input.charAt(i); - if (elements) { elements.push(e); } else { elements = [ e ]; } - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { - break; - } - } - - if (elements) { return new(tree.Selector)(elements, extendList, condition, index, env.currentFileInfo); } - if (extendList) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - if (! $char('[')) { return; } - - var entities = this.entities, - key, val, op; - - if (!(key = entities.variableCurly())) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - op = $re(/^[|~*$^]?=/); - if (op) { - val = entities.quoted() || $re(/^[0-9]+%/) || $re(/^[\w-]+/) || entities.variableCurly(); - } - - expectChar(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($char('{') && (content = this.primary()) && $char('}')) { - return content; - } - }, - - blockRuleset: function() { - var block = this.block(); - - if (block) { - block = new tree.Ruleset(null, block); - } - return block; - }, - - detachedRuleset: function() { - var blockRuleset = this.blockRuleset(); - if (blockRuleset) { - return new tree.DetachedRuleset(blockRuleset); - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors, s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - while (true) { - s = this.lessSelector(); - if (!s) { - break; - } - if (selectors) { selectors.push(s); } else { selectors = [ s ]; } - this.comments(); - if (s.condition && selectors.length > 1) { - error("Guards are only currently allowed on a single selector."); - } - if (! $char(',')) { break; } - if (s.condition) { - error("Guards are only currently allowed on a single selector."); - } - this.comments(); - } - - if (selectors && (rules = this.block())) { - forget(); - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) { - ruleset.debugInfo = debugInfo; - } - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, startOfRule = i, c = input.charAt(startOfRule), important, merge, isVariable; - - if (c === '.' || c === '#' || c === '&') { return; } - - save(); - - name = this.variable() || this.ruleProperty(); - if (name) { - isVariable = typeof name === "string"; - - if (isVariable) { - value = this.detachedRuleset(); - } - - if (!value) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || isVariable) ? - (this.value() || this.anonymousValue()) : - (this.anonymousValue() || this.value()); - - important = this.important(); - - // a name returned by this.ruleProperty() is always an array of the form: - // [string-1, ..., string-n, ""] or [string-1, ..., string-n, "+"] - // where each item is a tree.Keyword or tree.Variable - merge = !isVariable && name.pop().value; - } - - if (value && this.end()) { - forget(); - return new (tree.Rule)(name, value, important, merge, startOfRule, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } else { - forget(); - } - }, - anonymousValue: function () { - var match; - match = /^([^@+\/'"*`(;{}-]*);/.exec(current); - if (match) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $re(/^@import?\s+/); - - var options = (dir ? this.importOptions() : null) || {}; - - if (dir && (path = this.entities.quoted() || this.entities.url())) { - features = this.mediaFeatures(); - if ($char(';')) { - forget(); - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $char('(')) { return null; } - do { - o = this.importOption(); - if (o) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $char(',')) { break; } - } - } while (o); - expectChar(')'); - return options; - }, - - importOption: function() { - var opt = $re(/^(less|css|multiple|once|inline|reference)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var entities = this.entities, nodes = [], e, p; - do { - e = entities.keyword() || entities.variable(); - if (e) { - nodes.push(e); - } else if ($char('(')) { - p = this.property(); - e = this.value(); - if ($char(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null; } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var entities = this.entities, features = [], e; - do { - e = this.mediaFeature(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } else { - e = entities.variable(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - if ($re(/^@media/)) { - features = this.mediaFeatures(); - - rules = this.block(); - if (rules) { - media = new(tree.Media)(rules, features, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - media.debugInfo = debugInfo; - } - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var index = i, name, value, rules, nonVendorSpecificName, - hasIdentifier, hasExpression, hasUnknown, hasBlock = true; - - if (input.charAt(i) !== '@') { return; } - - value = this['import']() || this.media(); - if (value) { - return value; - } - - save(); - - name = $re(/^@[a-z-]+/); - - if (!name) { return; } - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - /* - case "@font-face": - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - */ - case "@charset": - hasIdentifier = true; - hasBlock = false; - break; - case "@namespace": - hasExpression = true; - hasBlock = false; - break; - case "@keyframes": - hasIdentifier = true; - break; - case "@host": - case "@page": - case "@document": - case "@supports": - hasUnknown = true; - break; - } - - if (hasIdentifier) { - value = this.entity(); - if (!value) { - error("expected " + name + " identifier"); - } - } else if (hasExpression) { - value = this.expression(); - if (!value) { - error("expected " + name + " expression"); - } - } else if (hasUnknown) { - value = ($re(/^[^{;]+/) || '').trim(); - if (value) { - value = new(tree.Anonymous)(value); - } - } - - if (hasBlock) { - rules = this.blockRuleset(); - } - - if (rules || (!hasBlock && value && $char(';'))) { - forget(); - return new(tree.Directive)(name, value, rules, index, env.currentFileInfo, - env.dumpLineNumbers ? getDebugInfo(index, input, env) : null); - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = []; - - do { - e = this.expression(); - if (e) { - expressions.push(e); - if (! $char(',')) { break; } - } - } while(e); - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $re(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($char('(')) { - a = this.addition(); - if (a) { - e = new(tree.Expression)([a]); - expectChar(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced; - m = this.operand(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - if (peek(/^\/[*\/]/)) { - break; - } - - save(); - - op = $char('/') || $char('*'); - - if (!op) { forget(); break; } - - a = this.operand(); - - if (!a) { restore(); break; } - forget(); - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - m = this.multiplication(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - op = $re(/^[-+]\s+/) || (!isSpaced && ($char('+') || $char('-'))); - if (!op) { - break; - } - a = this.multiplication(); - if (!a) { - break; - } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - a = this.condition(); - if (a) { - while (true) { - if (!peek(/^,\s*(not\s*)?\(/) || !$char(',')) { - break; - } - b = this.condition(); - if (!b) { - break; - } - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var entities = this.entities, index = i, negate = false, - a, b, c, op; - - if ($re(/^not/)) { negate = true; } - expectChar('('); - a = this.addition() || entities.keyword() || entities.quoted(); - if (a) { - op = $re(/^(?:>=|<=|=<|[<=>])/); - if (op) { - b = this.addition() || entities.keyword() || entities.quoted(); - if (b) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expectChar(')'); - return $re(/^and/) ? new(tree.Condition)('and', c, this.condition()) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var entities = this.entities, - p = input.charAt(i + 1), negate; - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $char('-'); } - var o = this.sub() || entities.dimension() || - entities.color() || entities.variable() || - entities.call(); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var entities = [], e, delim; - - do { - e = this.addition() || this.entity(); - if (e) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/)) { - delim = $char('/'); - if (delim) { - entities.push(new(tree.Anonymous)(delim)); - } - } - } - } while (e); - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name = $re(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/); - if (name) { - return name[1]; - } - }, - ruleProperty: function () { - var c = current, name = [], index = [], length = 0, s, k; - - function match(re) { - var a = re.exec(c); - if (a) { - index.push(i + length); - length += a[0].length; - c = c.slice(a[1].length); - return name.push(a[1]); - } - } - - match(/^(\*?)/); - while (match(/^((?:[\w-]+)|(?:@\{[\w-]+\}))/)); // ! - if ((name.length > 1) && match(/^\s*((?:\+_|\+)?)\s*:/)) { - // at last, we have the complete match now. move forward, - // convert name particles to tree objects and return: - skipWhitespace(length); - if (name[0] === '') { - name.shift(); - index.shift(); - } - for (k = 0; k < name.length; k++) { - s = name[k]; - name[k] = (s.charAt(0) !== '@') - ? new(tree.Keyword)(s) - : new(tree.Variable)('@' + s.slice(2, -1), - index[k], env.currentFileInfo); - } - return name; - } - } - } - }; - return parser; -}; -less.Parser.serializeVars = function(vars) { - var s = ''; - - for (var name in vars) { - if (Object.hasOwnProperty.call(vars, name)) { - var value = vars[name]; - s += ((name[0] === '@') ? '' : '@') + name +': '+ value + - ((('' + value).slice(-1) === ';') ? '' : ';'); - } - } - - return s; -}; - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 255); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; } - else if (h * 2 < 1) { return m2; } - else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; } - else { return m1; } - } - - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(color.toHSL().h); - }, - saturation: function (color) { - return new(tree.Dimension)(color.toHSL().s * 100, '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(color.toHSL().l * 100, '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(color.toHSV().h); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(color.toHSV().s * 100, '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(color.toHSV().v * 100, '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(color.luma() * color.alpha * 100, '%'); - }, - luminance: function (color) { - var luminance = - (0.2126 * color.rgb[0] / 255) - + (0.7152 * color.rgb[1] / 255) - + (0.0722 * color.rgb[2] / 255); - - return new(tree.Dimension)(luminance * color.alpha * 100, '%'); - }, - saturate: function (color, amount) { - // filter: saturate(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if (color.luma() < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str.value); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - replace: function (string, pattern, replacement, flags) { - var result = string.value; - - result = result.replace(new RegExp(pattern.value, flags ? flags.value : ''), replacement.value); - return new(tree.Quoted)(string.quote || '', result, string.escaped); - }, - '%': function (string /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - result = string.value; - - for (var i = 0; i < args.length; i++) { - /*jshint loopfunc:true */ - result = result.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - result = result.replace(/%%/g, '%'); - return new(tree.Quoted)(string.quote || '', result, string.escaped); - }, - unit: function (val, unit) { - if(!(val instanceof tree.Dimension)) { - throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") }; - } - if (unit) { - if (unit instanceof tree.Keyword) { - unit = unit.value; - } else { - unit = unit.toCSS(); - } - } else { - unit = ""; - } - return new(tree.Dimension)(val.value, unit); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return _math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _minmax: function (isMin, args) { - args = Array.prototype.slice.call(args); - switch(args.length) { - case 0: throw { type: "Argument", message: "one or more arguments required" }; - } - var i, j, current, currentUnified, referenceUnified, unit, unitStatic, unitClone, - order = [], // elems only contains original argument values. - values = {}; // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - for (i = 0; i < args.length; i++) { - current = args[i]; - if (!(current instanceof tree.Dimension)) { - if(Array.isArray(args[i].value)) { - Array.prototype.push.apply(args, Array.prototype.slice.call(args[i].value)); - } - continue; - } - currentUnified = current.unit.toString() === "" && unitClone !== undefined ? new(tree.Dimension)(current.value, unitClone).unify() : current.unify(); - unit = currentUnified.unit.toString() === "" && unitStatic !== undefined ? unitStatic : currentUnified.unit.toString(); - unitStatic = unit !== "" && unitStatic === undefined || unit !== "" && order[0].unify().unit.toString() === "" ? unit : unitStatic; - unitClone = unit !== "" && unitClone === undefined ? current.unit.toString() : unitClone; - j = values[""] !== undefined && unit !== "" && unit === unitStatic ? values[""] : values[unit]; - if (j === undefined) { - if(unitStatic !== undefined && unit !== unitStatic) { - throw{ type: "Argument", message: "incompatible types" }; - } - values[unit] = order.length; - order.push(current); - continue; - } - referenceUnified = order[j].unit.toString() === "" && unitClone !== undefined ? new(tree.Dimension)(order[j].value, unitClone).unify() : order[j].unify(); - if ( isMin && currentUnified.value < referenceUnified.value || - !isMin && currentUnified.value > referenceUnified.value) { - order[j] = current; - } - } - if (order.length == 1) { - return order[0]; - } - args = order.map(function (a) { return a.toCSS(this.env); }).join(this.env.compress ? "," : ", "); - return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")"); - }, - min: function () { - return this._minmax(true, arguments); - }, - max: function () { - return this._minmax(false, arguments); - }, - "get-unit": function (n) { - return new(tree.Anonymous)(n.unit); - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - var colorCandidate = n.value, - returnColor; - returnColor = tree.Color.fromKeyword(colorCandidate); - if (returnColor) { - return returnColor; - } - if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) { - return new(tree.Color)(colorCandidate.slice(1)); - } - throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" }; - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - return Array.isArray(values.value) - ? values.value[index] : Array(values)[index]; - }, - length: function(values) { - var n = Array.isArray(values.value) ? values.value.length : 1; - return new tree.Dimension(n); - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require('./fs'), - path = require('path'), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) { mimetype += ';base64'; } - } - else { - useBase64 = /;base64$/.test(mimetype); - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "\"data:" + mimetype + ',' + buf + "\""; - return new(tree.URL)(new(tree.Anonymous)(uri)); - }, - - "svg-gradient": function(direction) { - - function throwArgumentDescriptor() { - throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" }; - } - - if (arguments.length < 3) { - throwArgumentDescriptor(); - } - var stops = Array.prototype.slice.call(arguments, 1), - gradientDirectionSvg, - gradientType = "linear", - rectangleDimension = 'x="0" y="0" width="1" height="1"', - useBase64 = true, - renderEnv = {compress: false}, - returner, - directionValue = direction.toCSS(renderEnv), - i, color, position, positionValue, alpha; - - switch (directionValue) { - case "to bottom": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - gradientType = "radial"; - gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" }; - } - returner = '' + - '' + - '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>'; - - for (i = 0; i < stops.length; i+= 1) { - if (stops[i].value) { - color = stops[i].value[0]; - position = stops[i].value[1]; - } else { - color = stops[i]; - position = undefined; - } - - if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) { - throwArgumentDescriptor(); - } - positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%"; - alpha = color.alpha; - returner += ''; - } - returner += '' + - ''; - - if (useBase64) { - try { - returner = require('./encoder').encodeBase64(returner); // TODO browser implementation - } catch(e) { - useBase64 = false; - } - } - - returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'"; - return new(tree.URL)(new(tree.Anonymous)(returner)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -// Math - -var mathFunctions = { - // name, unit - ceil: null, - floor: null, - sqrt: null, - abs: null, - tan: "", - sin: "", - cos: "", - atan: "rad", - asin: "rad", - acos: "rad" -}; - -function _math(fn, unit, n) { - if (!(n instanceof tree.Dimension)) { - throw { type: "Argument", message: "argument must be a number" }; - } - if (unit == null) { - unit = n.unit; - } else { - n = n.unify(); - } - return new(tree.Dimension)(fn(parseFloat(n.value)), unit); -} - -// ~ End of Math - -// Color Blending -// ref: http://www.w3.org/TR/compositing-1 - -function colorBlend(mode, color1, color2) { - var ab = color1.alpha, cb, // backdrop - as = color2.alpha, cs, // source - ar, cr, r = []; // result - - ar = as + ab * (1 - as); - for (var i = 0; i < 3; i++) { - cb = color1.rgb[i] / 255; - cs = color2.rgb[i] / 255; - cr = mode(cb, cs); - if (ar) { - cr = (as * cs + ab * (cb - - as * (cb + cs - cr))) / ar; - } - r[i] = cr * 255; - } - - return new(tree.Color)(r, ar); -} - -var colorBlendMode = { - multiply: function(cb, cs) { - return cb * cs; - }, - screen: function(cb, cs) { - return cb + cs - cb * cs; - }, - overlay: function(cb, cs) { - cb *= 2; - return (cb <= 1) - ? colorBlendMode.multiply(cb, cs) - : colorBlendMode.screen(cb - 1, cs); - }, - softlight: function(cb, cs) { - var d = 1, e = cb; - if (cs > 0.5) { - e = 1; - d = (cb > 0.25) ? Math.sqrt(cb) - : ((16 * cb - 12) * cb + 4) * cb; - } - return cb - (1 - 2 * cs) * e * (d - cb); - }, - hardlight: function(cb, cs) { - return colorBlendMode.overlay(cs, cb); - }, - difference: function(cb, cs) { - return Math.abs(cb - cs); - }, - exclusion: function(cb, cs) { - return cb + cs - 2 * cb * cs; - }, - - // non-w3c functions: - average: function(cb, cs) { - return (cb + cs) / 2; - }, - negation: function(cb, cs) { - return 1 - Math.abs(cb + cs - 1); - } -}; - -// ~ End of Color Blending - -tree.defaultFunc = { - eval: function () { - var v = this.value_, e = this.error_; - if (e) { - throw e; - } - if (v != null) { - return v ? tree.True : tree.False; - } - }, - value: function (v) { - this.value_ = v; - }, - error: function (e) { - this.error_ = e; - }, - reset: function () { - this.value_ = this.error_ = null; - } -}; - -function initFunctions() { - var f, tf = tree.functions; - - // math - for (f in mathFunctions) { - if (mathFunctions.hasOwnProperty(f)) { - tf[f] = _math.bind(null, Math[f], mathFunctions[f]); - } - } - - // color blending - for (f in colorBlendMode) { - if (colorBlendMode.hasOwnProperty(f)) { - tf[f] = colorBlend.bind(null, colorBlendMode[f]); - } - } - - // default - f = tree.defaultFunc; - tf["default"] = f.eval.bind(f); - -} initFunctions(); - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.fround = function(env, value) { - var p = env && env.numPrecision; - //add "epsilon" to ensure numbers like 1.000000005 (represented as 1.000000004999....) are properly rounded... - return (p == null) ? value : Number((value + 2e-16).toFixed(p)); -}; - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); - -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); - -(function (tree) { - -tree.debugInfo = function(env, ctx, lineSeperator) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:\/\\])/g, function (a) { - if (a == '\\') { - a = '\/'; - } - return '\\' + a; - }) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - r = fun.call(obj, obj[i]); - if (r) { return r; } - } - return null; -}; - -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(); }).join(', ') + ']'; - } else { - return obj.toCSS(); - } -}; - -tree.toCSS = function (env) { - var strs = []; - this.genCSS(env, { - add: function(chunk, fileInfo, index) { - strs.push(chunk); - }, - isEmpty: function () { - return strs.length === 0; - } - }); - return strs.join(''); -}; - -tree.outputRuleset = function (env, output, rules) { - var ruleCnt = rules.length, i; - env.tabLevel = (env.tabLevel | 0) + 1; - - // Compressed - if (env.compress) { - output.add('{'); - for (i = 0; i < ruleCnt; i++) { - rules[i].genCSS(env, output); - } - output.add('}'); - env.tabLevel--; - return; - } - - // Non-compressed - var tabSetStr = '\n' + Array(env.tabLevel).join(" "), tabRuleStr = tabSetStr + " "; - if (!ruleCnt) { - output.add(" {" + tabSetStr + '}'); - } else { - output.add(" {" + tabRuleStr); - rules[0].genCSS(env, output); - for (i = 1; i < ruleCnt; i++) { - output.add(tabRuleStr); - rules[i].genCSS(env, output); - } - output.add(tabSetStr + '}'); - } - - env.tabLevel--; -}; - -})(require('./tree')); - -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } - return this; - }, - genCSS: function (env, output) { - output.add("alpha(opacity="); - - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - - output.add(")"); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Anonymous = function (value, index, currentFileInfo, mapLines) { - this.value = value; - this.index = index; - this.mapLines = mapLines; - this.currentFileInfo = currentFileInfo; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - eval: function () { - return new tree.Anonymous(this.value, this.index, this.currentFileInfo, this.mapLines); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - }, - genCSS: function (env, output) { - output.add(this.value, this.currentFileInfo, this.index, this.mapLines); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - }, - genCSS: function (env, output) { - output.add(this.key + '='); - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - if (this.args) { - this.args = visitor.visitArray(this.args); - } - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - return new tree.Call(this.name, args, this.index, this.currentFileInfo); - }, - - genCSS: function (env, output) { - output.add(this.name + "(", this.currentFileInfo, this.index); - - for(var i = 0; i < this.args.length; i++) { - this.args[i].genCSS(env, output); - if (i + 1 < this.args.length) { - output.add(", "); - } - } - - output.add(")"); - }, - - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; - -var transparentKeyword = "transparent"; - -tree.Color.prototype = { - type: "Color", - eval: function () { return this; }, - luma: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255; - - r = (r <= 0.03928) ? r / 12.92 : Math.pow(((r + 0.055) / 1.055), 2.4); - g = (g <= 0.03928) ? g / 12.92 : Math.pow(((g + 0.055) / 1.055), 2.4); - b = (b <= 0.03928) ? b / 12.92 : Math.pow(((b + 0.055) / 1.055), 2.4); - - return 0.2126 * r + 0.7152 * g + 0.0722 * b; - }, - - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress, - alpha = tree.fround(env, this.alpha); - - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - if (alpha < 1) { - if (alpha === 0 && this.isTransparentKeyword) { - return transparentKeyword; - } - return "rgba(" + this.rgb.map(function (c) { - return clamp(Math.round(c), 255); - }).concat(clamp(alpha, 1)) - .join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.toRGB(); - - if (compress) { - var splitcolor = color.split(''); - - // Convert color to short format - if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) { - color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5]; - } - } - - return color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var rgb = []; - var alpha = this.alpha * (1 - other.alpha) + other.alpha; - for (var c = 0; c < 3; c++) { - rgb[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(rgb, alpha); - }, - - toRGB: function () { - return toHex(this.rgb); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - return toHex([this.alpha * 255].concat(this.rgb)); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - -tree.Color.fromKeyword = function(keyword) { - keyword = keyword.toLowerCase(); - - if (tree.colors.hasOwnProperty(keyword)) { - // detect named color - return new(tree.Color)(tree.colors[keyword].slice(1)); - } - if (keyword === transparentKeyword) { - var transparent = new(tree.Color)([0, 0, 0], 0); - transparent.isTransparentKeyword = true; - return transparent; - } -}; - -function toHex(v) { - return '#' + v.map(function (c) { - c = clamp(Math.round(c), 255); - return (c < 16 ? '0' : '') + c.toString(16); - }).join(''); -} - -function clamp(v, max) { - return Math.min(Math.max(v, 0), max); -} - -})(require('../tree')); - -(function (tree) { - -tree.Comment = function (value, silent, index, currentFileInfo) { - this.value = value; - this.silent = !!silent; - this.currentFileInfo = currentFileInfo; -}; -tree.Comment.prototype = { - type: "Comment", - genCSS: function (env, output) { - if (this.debugInfo) { - output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index); - } - output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n - }, - toCSS: tree.toCSS, - isSilent: function(env) { - var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced), - isCompressed = env.compress && !this.value.match(/^\/\*!/); - return this.silent || isReference || isCompressed; - }, - eval: function () { return this; }, - markReferenced: function () { - this.isReferenced = true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<' || op === '<='; - case 0: return op === '=' || op === '>=' || op === '=<' || op === '<='; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.DetachedRuleset = function (ruleset, frames) { - this.ruleset = ruleset; - this.frames = frames; -}; -tree.DetachedRuleset.prototype = { - type: "DetachedRuleset", - accept: function (visitor) { - this.ruleset = visitor.visit(this.ruleset); - }, - eval: function (env) { - var frames = this.frames || env.frames.slice(0); - return new tree.DetachedRuleset(this.ruleset, frames); - }, - callEval: function (env) { - return this.ruleset.eval(this.frames ? new(tree.evalEnv)(env, this.frames.concat(env.frames)) : env); - } -}; -})(require('../tree')); - -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - genCSS: function (env, output) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = tree.fround(env, this.value), - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && this.unit.isLength()) { - output.add(strValue); - return; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - output.add(strValue); - this.unit.genCSS(env, output); - }, - toCSS: tree.toCSS, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - /*jshint noempty:false */ - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a, b, - aValue, bValue; - - if (this.unit.isEmpty() || other.unit.isEmpty()) { - a = this; - b = other; - } else { - a = this.unify(); - b = other.unify(); - if (a.unit.compare(b.unit) !== 0) { - return -1; - } - } - aValue = a.value; - bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'px', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, targetUnit, derivedConversions = {}, applyUnit; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - applyUnit = function (atomicUnit, denominator) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(applyUnit); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'px': 0.0254 / 96, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - genCSS: function (env, output) { - if (this.numerator.length >= 1) { - output.add(this.numerator[0]); - } else - if (this.denominator.length >= 1) { - output.add(this.denominator[0]); - } else - if ((!env || !env.strictUnits) && this.backupUnit) { - output.add(this.backupUnit); - } - }, - toCSS: tree.toCSS, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isLength: function () { - return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/)); - }, - - isEmpty: function () { - return this.numerator.length === 0 && this.denominator.length === 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length === 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, result = {}, mapUnit; - - mapUnit = function (atomicUnit) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }; - - for (var groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(mapUnit); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Directive = function (name, value, rules, index, currentFileInfo, debugInfo) { - this.name = name; - this.value = value; - if (rules) { - this.rules = rules; - this.rules.allowImports = true; - } - this.index = index; - this.currentFileInfo = currentFileInfo; - this.debugInfo = debugInfo; -}; - -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - var value = this.value, rules = this.rules; - if (rules) { - rules = visitor.visit(rules); - } - if (value) { - value = visitor.visit(value); - } - }, - genCSS: function (env, output) { - var value = this.value, rules = this.rules; - output.add(this.name, this.currentFileInfo, this.index); - if (value) { - output.add(' '); - value.genCSS(env, output); - } - if (rules) { - tree.outputRuleset(env, output, [rules]); - } else { - output.add(';'); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var value = this.value, rules = this.rules; - if (value) { - value = value.eval(env); - } - if (rules) { - rules = rules.eval(env); - rules.root = true; - } - return new(tree.Directive)(this.name, value, rules, - this.index, this.currentFileInfo, this.debugInfo); - }, - variable: function (name) { if (this.rules) return tree.Ruleset.prototype.variable.call(this.rules, name); }, - find: function () { if (this.rules) return tree.Ruleset.prototype.find.apply(this.rules, arguments); }, - rulesets: function () { if (this.rules) return tree.Ruleset.prototype.rulesets.apply(this.rules); }, - markReferenced: function () { - var i, rules; - this.isReferenced = true; - if (this.rules) { - rules = this.rules.rules; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Element = function (combinator, value, index, currentFileInfo) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - var value = this.value; - this.combinator = visitor.visit(this.combinator); - if (typeof value === "object") { - this.value = visitor.visit(value); - } - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index, - this.currentFileInfo); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env), this.currentFileInfo, this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value === '' && this.combinator.value.charAt(0) === '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - _outputMap: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : ' + ', - '~' : ' ~ ', - '>' : ' > ', - '|' : '|', - '^' : ' ^ ', - '^^' : ' ^^ ' - }, - _outputMapCompressed: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : '+', - '~' : '~', - '>' : '>', - '|' : '|', - '^' : '^', - '^^' : '^^' - }, - genCSS: function (env, output) { - output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - genCSS: function (env, output) { - for(var i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i + 1 < this.value.length) { - output.add(" "); - } - } - }, - toCSS: tree.toCSS, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - this.object_id = tree.Extend.next_id++; - this.parent_ids = [this.object_id]; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; -tree.Extend.next_id = 0; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i, - selectorElements; - - for(i = 0; i < selectors.length; i++) { - selectorElements = selectors[i].elements; - // duplicate the logic in genCSS function inside the selector node. - // future TODO - move both logics into the selector joiner visitor - if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") { - selectorElements[0].combinator.value = ' '; - } - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); - -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined || this.options.inline) { - this.css = !this.options.less || this.options.inline; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - this.path = visitor.visit(this.path); - if (!this.options.inline && this.root) { - this.root = visitor.visit(this.root); - } - }, - genCSS: function (env, output) { - if (this.css) { - output.add("@import ", this.currentFileInfo, this.index); - this.path.genCSS(env, output); - if (this.features) { - output.add(" "); - this.features.genCSS(env, output); - } - output.add(';'); - } - }, - toCSS: tree.toCSS, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - - if (!(path instanceof tree.URL)) { - if (rootpath) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath +pathValue; - } - } - path.value = env.normalizePath(path.value); - } - - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { - if (typeof this.skip === "function") { - this.skip = this.skip(); - } - if (this.skip) { - return []; - } - } - - if (this.options.inline) { - //todo needs to reference css file not import - var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true); - return this.features ? new(tree.Media)([contents], this.features.value) : [contents]; - } else if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" , - index: this.index }; - } - - var variables = env.frames[0].variables(); - for (var k in variables) { - if (variables.hasOwnProperty(k)) { - /*jshint loopfunc:true */ - context[k.slice(1)] = { - value: variables[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message.replace(/["]/g, "'") + "'" , - index: this.index }; - } - if (typeof(result) === 'number') { - return new(tree.Dimension)(result); - } else if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Keyword = function (value) { this.value = value; }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - genCSS: function (env, output) { - if (this.value === '%') { throw { type: "Syntax", message: "Invalid % without number" }; } - output.add(this.value); - }, - toCSS: tree.toCSS, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); - -(function (tree) { - -tree.Media = function (value, features, index, currentFileInfo) { - this.index = index; - this.currentFileInfo = currentFileInfo; - - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.rules = [new(tree.Ruleset)(selectors, value)]; - this.rules[0].allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - }, - genCSS: function (env, output) { - output.add('@media ', this.currentFileInfo, this.index); - this.features.genCSS(env, output); - tree.outputRuleset(env, output, this.rules); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)(null, [], this.index, this.currentFileInfo); - if(this.debugInfo) { - this.rules[0].debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.rules[0]); - media.rules = [this.rules[0].eval(env)]; - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env); - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', this.index, this.currentFileInfo), - sels = [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)]; - sels[0].mediaEmpty = true; - return sels; - }, - markReferenced: function () { - var i, rules = this.rules[0].rules; - this.rules[0].markReferenced(); - this.isReferenced = true; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - if (!selectors) - return; - this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])]; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = (args && args.length) ? args : null; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - if (this.selector) { - this.selector = visitor.visit(this.selector); - } - if (this.arguments) { - this.arguments = visitor.visitArray(this.arguments); - } - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule, - candidates = [], candidate, conditionResult = [], defaultFunc = tree.defaultFunc, - defaultResult, defNone = 0, defTrue = 1, defFalse = 2, count, originalRuleset; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - - // To make `default()` function independent of definition order we have two "subpasses" here. - // At first we evaluate each guard *twice* (with `default() == true` and `default() == false`), - // and build candidate list with corresponding flags. Then, when we know all possible matches, - // we make a final decision. - - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - - if (mixin.matchArgs(args, env)) { - candidate = {mixin: mixin, group: defNone}; - - if (mixin.matchCondition) { - for (f = 0; f < 2; f++) { - defaultFunc.value(f); - conditionResult[f] = mixin.matchCondition(args, env); - } - if (conditionResult[0] || conditionResult[1]) { - if (conditionResult[0] != conditionResult[1]) { - candidate.group = conditionResult[1] ? - defTrue : defFalse; - } - - candidates.push(candidate); - } - } - else { - candidates.push(candidate); - } - - match = true; - } - } - - defaultFunc.reset(); - - count = [0, 0, 0]; - for (m = 0; m < candidates.length; m++) { - count[candidates[m].group]++; - } - - if (count[defNone] > 0) { - defaultResult = defFalse; - } else { - defaultResult = defTrue; - if ((count[defTrue] + count[defFalse]) > 1) { - throw { type: 'Runtime', - message: 'Ambiguous use of `default()` found when matching for `' - + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - for (m = 0; m < candidates.length; m++) { - candidate = candidates[m].group; - if ((candidate === defNone) || (candidate === defaultResult)) { - try { - mixin = candidates[m].mixin; - if (!(mixin instanceof tree.mixin.Definition)) { - originalRuleset = mixin.originalRuleset || mixin; - mixin = new tree.mixin.Definition("", [], mixin.rules, null, false); - mixin.originalRuleset = originalRuleset; - } - Array.prototype.push.apply( - rules, mixin.evalCall(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - } - - if (match) { - if (!this.currentFileInfo || !this.currentFileInfo.reference) { - for (i = 0; i < rules.length; i++) { - rule = rules[i]; - if (rule.markReferenced) { - rule.markReferenced(); - } - } - } - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - }, - format: function (args) { - return this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")"; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic, frames) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1; } - else { return count; } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = frames; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - if (this.params && this.params.length) { - this.params = visitor.visitArray(this.params); - } - this.rules = visitor.visitArray(this.rules); - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - /*jshint boss:true */ - var frame = new(tree.Ruleset)(null, null), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex, argsLength = 0; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - argsLength = args.length; - - for(i = 0; i < argsLength; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.prependRule(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) { continue; } - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic) { - varargs = []; - for (j = argIndex; j < argsLength; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.prependRule(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + argsLength + ' for ' + this.arity + ')' }; - } - - frame.prependRule(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < argsLength; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env) { - return new tree.mixin.Definition(this.name, this.params, this.rules, this.condition, this.variadic, this.frames || env.frames.slice(0)); - }, - evalCall: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames ? this.frames.concat(env.frames) : env.frames, - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - rules, ruleset; - - frame.prependRule(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules); - ruleset.originalRuleset = this; - ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames))); - if (important) { - ruleset = this.parent.makeImportant.apply(ruleset); - } - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames ? this.frames.concat(env.frames) : env.frames), args, [])] // the parameter variables - .concat(this.frames) // the parent namespace/mixin frames - .concat(env.frames)))) { // the current environment frames - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (! this.variadic) { - if (argsLength < this.required) { return false; } - if (argsLength > this.params.length) { return false; } - } else { - if (argsLength < (this.required - 1)) { return false; } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('-'); - this.value.genCSS(env, output); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env); - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - a = a.toColor(); - } - if (b instanceof tree.Dimension && a instanceof tree.Color) { - b = b.toColor(); - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - genCSS: function (env, output) { - this.operands[0].genCSS(env, output); - if (this.isSpaced) { - output.add(" "); - } - output.add(this.op); - if (this.isSpaced) { - output.add(" "); - } - this.operands[1].genCSS(env, output); - }, - toCSS: tree.toCSS -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('('); - this.value.genCSS(env, output); - output.add(')'); - }, - toCSS: tree.toCSS, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - genCSS: function (env, output) { - if (!this.escaped) { - output.add(this.quote, this.currentFileInfo, this.index); - } - output.add(this.value); - if (!this.escaped) { - output.add(this.quote); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left, right; - - // when comparing quoted strings allow the quote to differ - if (x.type === "Quoted" && !this.escaped && !x.escaped) { - left = x.value; - right = this.value; - } else { - left = this.toCSS(); - right = x.toCSS(); - } - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value || value instanceof tree.Ruleset) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.merge = merge; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - this.variable = name.charAt && (name.charAt(0) === '@'); -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index); - try { - this.value.genCSS(env, output); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index); - }, - toCSS: tree.toCSS, - eval: function (env) { - var strictMathBypass = false, name = this.name, evaldValue; - if (typeof name !== "string") { - // expand 'primitive' name directly to get - // things faster (~10% for benchmark.less): - name = (name.length === 1) - && (name[0] instanceof tree.Keyword) - ? name[0].value : evalName(env, name); - } - if (name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - evaldValue = this.value.eval(env); - - if (!this.variable && evaldValue.type === "DetachedRuleset") { - throw { message: "Rulesets cannot be evaluated on a property.", - index: this.index, filename: this.currentFileInfo.filename }; - } - - return new(tree.Rule)(name, - evaldValue, - this.important, - this.merge, - this.index, this.currentFileInfo, this.inline); - } - catch(e) { - if (typeof e.index !== 'number') { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - } - throw e; - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.merge, - this.index, this.currentFileInfo, this.inline); - } -}; - -function evalName(env, name) { - var value = "", i, n = name.length, - output = {add: function (s) {value += s;}}; - for (i = 0; i < n; i++) { - name[i].eval(env).genCSS(env, output); - } - return value; -} - -})(require('../tree')); - -(function (tree) { - -tree.RulesetCall = function (variable) { - this.variable = variable; -}; -tree.RulesetCall.prototype = { - type: "RulesetCall", - accept: function (visitor) { - }, - eval: function (env) { - var detachedRuleset = new(tree.Variable)(this.variable).eval(env); - return detachedRuleset.callEval(env); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - if (this.paths) { - visitor.visitArray(this.paths, true); - } else if (this.selectors) { - this.selectors = visitor.visitArray(this.selectors); - } - if (this.rules && this.rules.length) { - this.rules = visitor.visitArray(this.rules); - } - }, - eval: function (env) { - var thisSelectors = this.selectors, selectors, - selCnt, selector, i, defaultFunc = tree.defaultFunc, hasOnePassingSelector = false; - - if (thisSelectors && (selCnt = thisSelectors.length)) { - selectors = []; - defaultFunc.error({ - type: "Syntax", - message: "it is currently only allowed in parametric mixin guards," - }); - for (i = 0; i < selCnt; i++) { - selector = thisSelectors[i].eval(env); - selectors.push(selector); - if (selector.evaldCondition) { - hasOnePassingSelector = true; - } - } - defaultFunc.reset(); - } else { - hasOnePassingSelector = true; - } - - var rules = this.rules ? this.rules.slice(0) : null, - ruleset = new(tree.Ruleset)(selectors, rules, this.strictImports), - rule, subRule; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - if (!hasOnePassingSelector) { - rules.length = 0; - } - - // push the current ruleset to the frames stack - var envFrames = env.frames; - envFrames.unshift(ruleset); - - // currrent selectors - var envSelectors = env.selectors; - if (!envSelectors) { - env.selectors = envSelectors = []; - } - envSelectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - var rsRules = ruleset.rules, rsRuleCnt = rsRules ? rsRules.length : 0; - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Definition || rsRules[i] instanceof tree.DetachedRuleset) { - rsRules[i] = rsRules[i].eval(env); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Call) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } else if (rsRules[i] instanceof tree.RulesetCall) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).rules.filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope at all - return false; - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (i = 0; i < rsRules.length; i++) { - rule = rsRules[i]; - if (! (rule instanceof tree.mixin.Definition || rule instanceof tree.DetachedRuleset)) { - rsRules[i] = rule = rule.eval ? rule.eval(env) : rule; - } - } - - // Evaluate everything else - for (i = 0; i < rsRules.length; i++) { - rule = rsRules[i]; - // for rulesets, check if it is a css guard and can be removed - if (rule instanceof tree.Ruleset && rule.selectors && rule.selectors.length === 1) { - // check if it can be folded in (e.g. & where) - if (rule.selectors[0].isJustParentSelector()) { - rsRules.splice(i--, 1); - - for(var j = 0; j < rule.rules.length; j++) { - subRule = rule.rules[j]; - if (!(subRule instanceof tree.Rule) || !subRule.variable) { - rsRules.splice(++i, 0, subRule); - } - } - } - } - } - - // Pop the stack - envFrames.shift(); - envSelectors.shift(); - - if (env.mediaBlocks) { - for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var rules = this.rules, i, importRules; - if (!rules) { return; } - - for (i = 0; i < rules.length; i++) { - if (rules[i] instanceof tree.Import) { - importRules = rules[i].eval(env); - if (importRules && importRules.length) { - rules.splice.apply(rules, [i, 1].concat(importRules)); - i+= importRules.length-1; - } else { - rules.splice(i, 1, importRules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - // lets you call a css selector with a guard - matchCondition: function (args, env) { - var lastSelector = this.selectors[this.selectors.length-1]; - if (!lastSelector.evaldCondition) { - return false; - } - if (lastSelector.condition && - !lastSelector.condition.eval( - new(tree.evalEnv)(env, - env.frames))) { - return false; - } - return true; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (!this._variables) { - this._variables = !this.rules ? {} : this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - return this._variables; - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (!this.rules) { return null; } - - var _Ruleset = tree.Ruleset, _MixinDefinition = tree.mixin.Definition, - filtRules = [], rules = this.rules, cnt = rules.length, - i, rule; - - for (i = 0; i < cnt; i++) { - rule = rules[i]; - if ((rule instanceof _Ruleset) || (rule instanceof _MixinDefinition)) { - filtRules.push(rule); - } - } - - return filtRules; - }, - prependRule: function (rule) { - var rules = this.rules; - if (rules) { rules.unshift(rule); } else { this.rules = [ rule ]; } - }, - find: function (selector, self) { - self = self || this; - var rules = [], match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key]; } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - match = selector.match(rule.selectors[j]); - if (match) { - if (selector.elements.length > match) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(match)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - this._lookups[key] = rules; - return rules; - }, - genCSS: function (env, output) { - var i, j, - ruleNodes = [], - rulesetNodes = [], - rulesetNodeCnt, - debugInfo, // Line number debugging - rule, - path; - - env.tabLevel = (env.tabLevel || 0); - - if (!this.root) { - env.tabLevel++; - } - - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "), - sep; - - for (i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - if (rule.rules || (rule instanceof tree.Media) || rule instanceof tree.Directive || (this.root && rule instanceof tree.Comment)) { - rulesetNodes.push(rule); - } else { - ruleNodes.push(rule); - } - } - - // If this is the root node, we don't render - // a selector, or {}. - if (!this.root) { - debugInfo = tree.debugInfo(env, this, tabSetStr); - - if (debugInfo) { - output.add(debugInfo); - output.add(tabSetStr); - } - - var paths = this.paths, pathCnt = paths.length, - pathSubCnt; - - sep = env.compress ? ',' : (',\n' + tabSetStr); - - for (i = 0; i < pathCnt; i++) { - path = paths[i]; - if (!(pathSubCnt = path.length)) { continue; } - if (i > 0) { output.add(sep); } - - env.firstSelector = true; - path[0].genCSS(env, output); - - env.firstSelector = false; - for (j = 1; j < pathSubCnt; j++) { - path[j].genCSS(env, output); - } - } - - output.add((env.compress ? '{' : ' {\n') + tabRuleStr); - } - - // Compile rules and rulesets - for (i = 0; i < ruleNodes.length; i++) { - rule = ruleNodes[i]; - - // @page{ directive ends up with root elements inside it, a mix of rules and rulesets - // In this instance we do not know whether it is the last property - if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) { - env.lastRule = true; - } - - if (rule.genCSS) { - rule.genCSS(env, output); - } else if (rule.value) { - output.add(rule.value.toString()); - } - - if (!env.lastRule) { - output.add(env.compress ? '' : ('\n' + tabRuleStr)); - } else { - env.lastRule = false; - } - } - - if (!this.root) { - output.add((env.compress ? '}' : '\n' + tabSetStr + '}')); - env.tabLevel--; - } - - sep = (env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr); - rulesetNodeCnt = rulesetNodes.length; - if (rulesetNodeCnt) { - if (ruleNodes.length && sep) { output.add(sep); } - rulesetNodes[0].genCSS(env, output); - for (i = 1; i < rulesetNodeCnt; i++) { - if (sep) { output.add(sep); } - rulesetNodes[i].genCSS(env, output); - } - } - - if (!output.isEmpty() && !env.compress && this.firstRoot) { - output.add('\n'); - } - }, - - toCSS: tree.toCSS, - - markReferenced: function () { - if (!this.selectors) { - return; - } - for (var s = 0; s < this.selectors.length; s++) { - this.selectors[s].markReferenced(); - } - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for (i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for (j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length === 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', el.index, el.currentFileInfo)); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for (k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = selector.createDerived([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for (i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length === 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for (i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); - -(function (tree) { - -tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) { - this.elements = elements; - this.extendList = extendList; - this.condition = condition; - this.currentFileInfo = currentFileInfo || {}; - this.isReferenced = isReferenced; - if (!condition) { - this.evaldCondition = true; - } -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - if (this.elements) { - this.elements = visitor.visitArray(this.elements); - } - if (this.extendList) { - this.extendList = visitor.visitArray(this.extendList); - } - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - createDerived: function(elements, extendList, evaldCondition) { - evaldCondition = (evaldCondition != null) ? evaldCondition : this.evaldCondition; - var newSelector = new(tree.Selector)(elements, extendList || this.extendList, null, this.index, this.currentFileInfo, this.isReferenced); - newSelector.evaldCondition = evaldCondition; - newSelector.mediaEmpty = this.mediaEmpty; - return newSelector; - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - olen, i; - - other.CacheElements(); - - olen = other._elements.length; - if (olen === 0 || len < olen) { - return 0; - } else { - for (i = 0; i < olen; i++) { - if (elements[i].value !== other._elements[i]) { - return 0; - } - } - } - - return olen; // return number of matched elements - }, - CacheElements: function(){ - var css = '', len, v, i; - - if( !this._elements ){ - - len = this.elements.length; - for(i = 0; i < len; i++){ - - v = this.elements[i]; - css += v.combinator.value; - - if( !v.value.value ){ - css += v.value; - continue; - } - - if( typeof v.value.value !== "string" ){ - css = ''; - break; - } - css += v.value.value; - } - - this._elements = css.match(/[,&#\.\w-]([\w-]|(\\.))*/g); - - if (this._elements) { - if (this._elements[0] === "&") { - this._elements.shift(); - } - - } else { - this._elements = []; - } - - } - }, - isJustParentSelector: function() { - return !this.mediaEmpty && - this.elements.length === 1 && - this.elements[0].value === '&' && - (this.elements[0].combinator.value === ' ' || this.elements[0].combinator.value === ''); - }, - eval: function (env) { - var evaldCondition = this.condition && this.condition.eval(env), - elements = this.elements, extendList = this.extendList; - - elements = elements && elements.map(function (e) { return e.eval(env); }); - extendList = extendList && extendList.map(function(extend) { return extend.eval(env); }); - - return this.createDerived(elements, extendList, evaldCondition); - }, - genCSS: function (env, output) { - var i, element; - if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") { - output.add(' ', this.currentFileInfo, this.index); - } - if (!this._css) { - //TODO caching? speed comparison? - for(i = 0; i < this.elements.length; i++) { - element = this.elements[i]; - element.genCSS(env, output); - } - } - }, - toCSS: tree.toCSS, - markReferenced: function () { - this.isReferenced = true; - }, - getIsReferenced: function() { - return !this.currentFileInfo.reference || this.isReferenced; - }, - getIsOutput: function() { - return this.evaldCondition; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - eval: function () { return this; } -}; - -})(require('../tree')); - -(function (tree) { - -tree.URL = function (val, currentFileInfo, isEvald) { - this.value = val; - this.currentFileInfo = currentFileInfo; - this.isEvald = isEvald; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add("url("); - this.value.genCSS(env, output); - output.add(")"); - }, - toCSS: tree.toCSS, - eval: function (ctx) { - var val = this.value.eval(ctx), - rootpath; - - if (!this.isEvald) { - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - val.value = ctx.normalizePath(val.value); - - // Add url args if enabled - if (ctx.urlArgs) { - if (!val.value.match(/^\s*data:/)) { - var delimiter = val.value.indexOf('?') === -1 ? '?' : '&'; - var urlArgs = delimiter + ctx.urlArgs; - if (val.value.indexOf('#') !== -1) { - val.value = val.value.replace('#', urlArgs + '#'); - } else { - val.value += urlArgs; - } - } - } - } - - return new(tree.URL)(val, this.currentFileInfo, true); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - genCSS: function (env, output) { - var i; - for(i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i+1 < this.value.length) { - output.add((env && env.compress) ? ',' : ', '); - } - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { - this.name = name; - this.index = index; - this.currentFileInfo = currentFileInfo || {}; -}; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, name = this.name; - - if (name.indexOf('@@') === 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - variable = tree.find(env.frames, function (frame) { - var v = frame.variable(name); - if (v) { - return v.value.eval(env); - } - }); - if (variable) { - this.evaluating = false; - return variable; - } else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); - -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // map - filename to contents of all the files - 'contentsIgnoredChars', // map - filename to lines at the begining of each file to ignore - 'relativeUrls', // option - whether to adjust URL's to be relative - 'rootpath', // option - rootpath to append to URL's - 'strictImports', // option - - 'insecure', // option - whether to allow imports from insecure ssl hosts - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true - 'mime', // browser only - mime type for sheet import - 'useFileCache', // browser only - whether to use the per file session cache - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' - absolute path to the entry file - // 'reference' - whether the file should not be output and only output parts that are referenced - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.contentsIgnoredChars) { this.contentsIgnoredChars = {}; } - if (!this.files) { this.files = {}; } - - if (typeof this.paths === "string") { this.paths = [this.paths]; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits', // whether units need to evaluate correctly - 'cleancss', // whether to compress with clean-css - 'sourceMap', // whether to output a source map - 'importMultiple', // whether we are currently importing multiple copies - 'urlArgs' // whether to add args into url tokens - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - tree.evalEnv.prototype.normalizePath = function( path ) { - var - segments = path.split("/").reverse(), - segment; - - path = []; - while (segments.length !== 0 ) { - segment = segments.pop(); - switch( segment ) { - case ".": - break; - case "..": - if ((path.length === 0) || (path[path.length - 1] === "..")) { - path.push( segment ); - } else { - path.pop(); - } - break; - default: - path.push( segment ); - break; - } - } - - return path.join("/"); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - }; - -})(require('./tree')); - -(function (tree) { - - var _visitArgs = { visitDeeper: true }, - _hasIndexed = false; - - function _noop(node) { - return node; - } - - function indexNodeTypes(parent, ticker) { - // add .typeIndex to tree node types for lookup table - var key, child; - for (key in parent) { - if (parent.hasOwnProperty(key)) { - child = parent[key]; - switch (typeof child) { - case "function": - // ignore bound functions directly on tree which do not have a prototype - // or aren't nodes - if (child.prototype && child.prototype.type) { - child.prototype.typeIndex = ticker++; - } - break; - case "object": - ticker = indexNodeTypes(child, ticker); - break; - } - } - } - return ticker; - } - - tree.visitor = function(implementation) { - this._implementation = implementation; - this._visitFnCache = []; - - if (!_hasIndexed) { - indexNodeTypes(tree, 1); - _hasIndexed = true; - } - }; - - tree.visitor.prototype = { - visit: function(node) { - if (!node) { - return node; - } - - var nodeTypeIndex = node.typeIndex; - if (!nodeTypeIndex) { - return node; - } - - var visitFnCache = this._visitFnCache, - impl = this._implementation, - aryIndx = nodeTypeIndex << 1, - outAryIndex = aryIndx | 1, - func = visitFnCache[aryIndx], - funcOut = visitFnCache[outAryIndex], - visitArgs = _visitArgs, - fnName; - - visitArgs.visitDeeper = true; - - if (!func) { - fnName = "visit" + node.type; - func = impl[fnName] || _noop; - funcOut = impl[fnName + "Out"] || _noop; - visitFnCache[aryIndx] = func; - visitFnCache[outAryIndex] = funcOut; - } - - if (func !== _noop) { - var newNode = func.call(impl, node, visitArgs); - if (impl.isReplacing) { - node = newNode; - } - } - - if (visitArgs.visitDeeper && node && node.accept) { - node.accept(this); - } - - if (funcOut != _noop) { - funcOut.call(impl, node); - } - - return node; - }, - visitArray: function(nodes, nonReplacing) { - if (!nodes) { - return nodes; - } - - var cnt = nodes.length, i; - - // Non-replacing - if (nonReplacing || !this._implementation.isReplacing) { - for (i = 0; i < cnt; i++) { - this.visit(nodes[i]); - } - return nodes; - } - - // Replacing - var out = []; - for (i = 0; i < cnt; i++) { - var evald = this.visit(nodes[i]); - if (!evald.splice) { - out.push(evald); - } else if (evald.length) { - this.flatten(evald, out); - } - } - return out; - }, - flatten: function(arr, out) { - if (!out) { - out = []; - } - - var cnt, i, item, - nestedCnt, j, nestedItem; - - for (i = 0, cnt = arr.length; i < cnt; i++) { - item = arr[i]; - if (!item.splice) { - out.push(item); - continue; - } - - for (j = 0, nestedCnt = item.length; j < nestedCnt; j++) { - nestedItem = item[j]; - if (!nestedItem.splice) { - out.push(nestedItem); - } else if (nestedItem.length) { - this.flatten(nestedItem, out); - } - } - } - - return out; - } - }; - -})(require('./tree')); -(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv, onceFileDetectionMap, recursionDetector) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - this.onceFileDetectionMap = onceFileDetectionMap || {}; - this.recursionDetector = {}; - if (recursionDetector) { - for(var fullFilename in recursionDetector) { - if (recursionDetector.hasOwnProperty(fullFilename)) { - this.recursionDetector[fullFilename] = true; - } - } - } - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode, - inlineCSS = importNode.options.inline; - - if (!importNode.css || inlineCSS) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - - if (importNode.options.multiple) { - env.importMultiple = true; - } - - this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, importedAtRoot, fullPath) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - - if (!env.importMultiple) { - if (importedAtRoot) { - importNode.skip = true; - } else { - importNode.skip = function() { - if (fullPath in importVisitor.onceFileDetectionMap) { - return true; - } - importVisitor.onceFileDetectionMap[fullPath] = true; - return false; - }; - } - } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - importNode.importedFilename = fullPath; - var duplicateImport = importedAtRoot || fullPath in importVisitor.recursionDetector; - - if (!inlineCSS && (env.importMultiple || !duplicateImport)) { - importVisitor.recursionDetector[fullPath] = true; - new(tree.importVisitor)(importVisitor._importer, subFinish, env, importVisitor.onceFileDetectionMap, importVisitor.recursionDetector) - .run(root); - return; - } - } - - subFinish(); - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree')); -(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1], - paths = [], selectors; - - this.contexts.push(paths); - - if (! rulesetNode.root) { - selectors = rulesetNode.selectors; - if (selectors) { - selectors = selectors.filter(function(selector) { return selector.getIsOutput(); }); - rulesetNode.selectors = selectors.length ? selectors : (selectors = null); - if (selectors) { rulesetNode.joinSelectors(paths, context, selectors); } - } - if (!selectors) { rulesetNode.rules = null; } - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree')); -(function (tree) { - tree.toCSSVisitor = function(env) { - this._visitor = new tree.visitor(this); - this._env = env; - }; - - tree.toCSSVisitor.prototype = { - isReplacing: true, - run: function (root) { - return this._visitor.visit(root); - }, - - visitRule: function (ruleNode, visitArgs) { - if (ruleNode.variable) { - return []; - } - return ruleNode; - }, - - visitMixinDefinition: function (mixinNode, visitArgs) { - // mixin definitions do not get eval'd - this means they keep state - // so we have to clear that state here so it isn't used if toCSS is called twice - mixinNode.frames = []; - return []; - }, - - visitExtend: function (extendNode, visitArgs) { - return []; - }, - - visitComment: function (commentNode, visitArgs) { - if (commentNode.isSilent(this._env)) { - return []; - } - return commentNode; - }, - - visitMedia: function(mediaNode, visitArgs) { - mediaNode.accept(this._visitor); - visitArgs.visitDeeper = false; - - if (!mediaNode.rules.length) { - return []; - } - return mediaNode; - }, - - visitDirective: function(directiveNode, visitArgs) { - if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) { - return []; - } - if (directiveNode.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (this.charset) { - if (directiveNode.debugInfo) { - var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n"); - comment.debugInfo = directiveNode.debugInfo; - return this._visitor.visit(comment); - } - return []; - } - this.charset = true; - } - return directiveNode; - }, - - checkPropertiesInRoot: function(rules) { - var ruleNode; - for(var i = 0; i < rules.length; i++) { - ruleNode = rules[i]; - if (ruleNode instanceof tree.Rule && !ruleNode.variable) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null}; - } - } - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var rule, rulesets = []; - if (rulesetNode.firstRoot) { - this.checkPropertiesInRoot(rulesetNode.rules); - } - if (! rulesetNode.root) { - if (rulesetNode.paths) { - rulesetNode.paths = rulesetNode.paths - .filter(function(p) { - var i; - if (p[0].elements[0].combinator.value === ' ') { - p[0].elements[0].combinator = new(tree.Combinator)(''); - } - for(i = 0; i < p.length; i++) { - if (p[i].getIsReferenced() && p[i].getIsOutput()) { - return true; - } - } - return false; - }); - } - - // Compile rules and rulesets - var nodeRules = rulesetNode.rules, nodeRuleCnt = nodeRules ? nodeRules.length : 0; - for (var i = 0; i < nodeRuleCnt; ) { - rule = nodeRules[i]; - if (rule && rule.rules) { - // visit because we are moving them out from being a child - rulesets.push(this._visitor.visit(rule)); - nodeRules.splice(i, 1); - nodeRuleCnt--; - continue; - } - i++; - } - // accept the visitor to remove rules and refactor itself - // then we can decide now whether we want it or not - if (nodeRuleCnt > 0) { - rulesetNode.accept(this._visitor); - } else { - rulesetNode.rules = null; - } - visitArgs.visitDeeper = false; - - nodeRules = rulesetNode.rules; - if (nodeRules) { - this._mergeRules(nodeRules); - nodeRules = rulesetNode.rules; - } - if (nodeRules) { - this._removeDuplicateRules(nodeRules); - nodeRules = rulesetNode.rules; - } - - // now decide whether we keep the ruleset - if (nodeRules && nodeRules.length > 0 && rulesetNode.paths.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } else { - rulesetNode.accept(this._visitor); - visitArgs.visitDeeper = false; - if (rulesetNode.firstRoot || (rulesetNode.rules && rulesetNode.rules.length > 0)) { - rulesets.splice(0, 0, rulesetNode); - } - } - if (rulesets.length === 1) { - return rulesets[0]; - } - return rulesets; - }, - - _removeDuplicateRules: function(rules) { - if (!rules) { return; } - - // remove duplicates - var ruleCache = {}, - ruleList, rule, i; - - for(i = rules.length - 1; i >= 0 ; i--) { - rule = rules[i]; - if (rule instanceof tree.Rule) { - if (!ruleCache[rule.name]) { - ruleCache[rule.name] = rule; - } else { - ruleList = ruleCache[rule.name]; - if (ruleList instanceof tree.Rule) { - ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)]; - } - var ruleCSS = rule.toCSS(this._env); - if (ruleList.indexOf(ruleCSS) !== -1) { - rules.splice(i, 1); - } else { - ruleList.push(ruleCSS); - } - } - } - } - }, - - _mergeRules: function (rules) { - if (!rules) { return; } - - var groups = {}, - parts, - rule, - key; - - for (var i = 0; i < rules.length; i++) { - rule = rules[i]; - - if ((rule instanceof tree.Rule) && rule.merge) { - key = [rule.name, - rule.important ? "!" : ""].join(","); - - if (!groups[key]) { - groups[key] = []; - } else { - rules.splice(i--, 1); - } - - groups[key].push(rule); - } - } - - Object.keys(groups).map(function (k) { - - function toExpression(values) { - return new (tree.Expression)(values.map(function (p) { - return p.value; - })); - } - - function toValue(values) { - return new (tree.Value)(values.map(function (p) { - return p; - })); - } - - parts = groups[k]; - - if (parts.length > 1) { - rule = parts[0]; - var spacedGroups = []; - var lastSpacedGroup = []; - parts.map(function (p) { - if (p.merge==="+") { - if (lastSpacedGroup.length > 0) { - spacedGroups.push(toExpression(lastSpacedGroup)); - } - lastSpacedGroup = []; - } - lastSpacedGroup.push(p); - }); - spacedGroups.push(toExpression(lastSpacedGroup)); - rule.value = toValue(spacedGroups); - } - }); - } - }; - -})(require('./tree')); -(function (tree) { - /*jshint loopfunc:true */ - - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - var rules = rulesetNode.rules, ruleCnt = rules ? rules.length : 0; - for(i = 0; i < ruleCnt; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rules[i]); - rulesetNode.extendOnEveryPath = true; - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - var paths = rulesetNode.paths; - for(i = 0; i < paths.length; i++) { - var selectorPath = paths[i], - selector = selectorPath[selectorPath.length - 1], - selExtendList = selector.extendList; - - extendList = selExtendList ? selExtendList.slice(0).concat(allSelectorsExtendList) - : allSelectorsExtendList; - - if (extendList) { - extendList = extendList.map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - } - - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if( extend.parent_ids.indexOf( targetExtend.object_id ) >= 0 ){ continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parent_ids = newExtend.parent_ids.concat(targetExtend.parent_ids, extend.parent_ids); - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (rulesetNode.extendOnEveryPath) { continue; } - var extendList = selectorPath[selectorPath.length-1].extendList; - if (extendList && extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator === '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - elementValue1 = elementValue1.value; - elementValue2 = elementValue2.value; - if (elementValue1 instanceof tree.Selector) { - if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) { - return false; - } - for(var i = 0; i currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - newElements = selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)); - - if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) { - path[path.length - 1].elements = - path[path.length - 1].elements.concat(newElements); - } else { - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - newElements - )); - } - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.sourceMapOutput = function (options) { - this._css = []; - this._rootNode = options.rootNode; - this._writeSourceMap = options.writeSourceMap; - this._contentsMap = options.contentsMap; - this._contentsIgnoredCharsMap = options.contentsIgnoredCharsMap; - this._sourceMapFilename = options.sourceMapFilename; - this._outputFilename = options.outputFilename; - this._sourceMapURL = options.sourceMapURL; - if (options.sourceMapBasepath) { - this._sourceMapBasepath = options.sourceMapBasepath.replace(/\\/g, '/'); - } - this._sourceMapRootpath = options.sourceMapRootpath; - this._outputSourceFiles = options.outputSourceFiles; - this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator; - - if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') { - this._sourceMapRootpath += '/'; - } - - this._lineNumber = 0; - this._column = 0; - }; - - tree.sourceMapOutput.prototype.normalizeFilename = function(filename) { - filename = filename.replace(/\\/g, '/'); - - if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) { - filename = filename.substring(this._sourceMapBasepath.length); - if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') { - filename = filename.substring(1); - } - } - return (this._sourceMapRootpath || "") + filename; - }; - - tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) { - - //ignore adding empty strings - if (!chunk) { - return; - } - - var lines, - sourceLines, - columns, - sourceColumns, - i; - - if (fileInfo) { - var inputSource = this._contentsMap[fileInfo.filename]; - - // remove vars/banner added to the top of the file - if (this._contentsIgnoredCharsMap[fileInfo.filename]) { - // adjust the index - index -= this._contentsIgnoredCharsMap[fileInfo.filename]; - if (index < 0) { index = 0; } - // adjust the source - inputSource = inputSource.slice(this._contentsIgnoredCharsMap[fileInfo.filename]); - } - inputSource = inputSource.substring(0, index); - sourceLines = inputSource.split("\n"); - sourceColumns = sourceLines[sourceLines.length-1]; - } - - lines = chunk.split("\n"); - columns = lines[lines.length-1]; - - if (fileInfo) { - if (!mapLines) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column}, - original: { line: sourceLines.length, column: sourceColumns.length}, - source: this.normalizeFilename(fileInfo.filename)}); - } else { - for(i = 0; i < lines.length; i++) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0}, - original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0}, - source: this.normalizeFilename(fileInfo.filename)}); - } - } - } - - if (lines.length === 1) { - this._column += columns.length; - } else { - this._lineNumber += lines.length - 1; - this._column = columns.length; - } - - this._css.push(chunk); - }; - - tree.sourceMapOutput.prototype.isEmpty = function() { - return this._css.length === 0; - }; - - tree.sourceMapOutput.prototype.toCSS = function(env) { - this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null }); - - if (this._outputSourceFiles) { - for(var filename in this._contentsMap) { - if (this._contentsMap.hasOwnProperty(filename)) - { - var source = this._contentsMap[filename]; - if (this._contentsIgnoredCharsMap[filename]) { - source = source.slice(this._contentsIgnoredCharsMap[filename]); - } - this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), source); - } - } - } - - this._rootNode.genCSS(env, this); - - if (this._css.length > 0) { - var sourceMapURL, - sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); - - if (this._sourceMapURL) { - sourceMapURL = this._sourceMapURL; - } else if (this._sourceMapFilename) { - sourceMapURL = this.normalizeFilename(this._sourceMapFilename); - } - - if (this._writeSourceMap) { - this._writeSourceMap(sourceMapContent); - } else { - sourceMapURL = "data:application/json;base64," + require('./encoder.js').encodeBase64(sourceMapContent); - } - - if (sourceMapURL) { - this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */"); - } - } - - return this._css.join(''); - }; - -})(require('./tree')); - -// -// browser.js - client-side engine -// -/*global less, window, document, XMLHttpRequest, location */ - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - (location.port && - location.port.length > 0) || - isFileProtocol ? 'development' - : 'production'); - -var logLevel = { - debug: 3, - info: 2, - errors: 1, - none: 0 -}; - -// The amount of logging in the javascript console. -// 3 - Debug, information and errors -// 2 - Information and errors -// 1 - Errors -// 0 - None -// Defaults to 2 -less.logLevel = typeof(less.logLevel) != 'undefined' ? less.logLevel : (less.env === 'development' ? logLevel.debug : logLevel.errors); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - if (less.functions.hasOwnProperty(func)) { - less.tree.functions[func] = less.functions[func]; - } - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -var typePattern = /^text\/(x-)?less$/; -var cache = null; -var fileCache = {}; - -function log(str, level) { - if (typeof(console) !== 'undefined' && less.logLevel >= level) { - console.log('less: ' + str); - } -} - -function extractId(href) { - return href.replace(/^[a-z-]+:\/+?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function errorConsole(e, rootHref) { - var template = '{line} {content}'; - var filename = e.filename || rootHref; - var errors = []; - var content = (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - " in " + filename + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n' + - errors.join('\n'); - } else if (e.stack) { - content += e.stack; - } - log(content, logLevel.errors); -} - -function createCSS(styles, sheet, lastModified) { - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If this has already been inserted into the DOM, we may need to replace it - var oldCss = document.getElementById(id); - var keepOldCss = false; - - // Create a new stylesheet node for insertion or (if necessary) replacement - var css = document.createElement('style'); - css.setAttribute('type', 'text/css'); - if (sheet.media) { - css.setAttribute('media', sheet.media); - } - css.id = id; - - if (!css.styleSheet) { - css.appendChild(document.createTextNode(styles)); - - // If new contents match contents of oldCss, don't replace oldCss - keepOldCss = (oldCss !== null && oldCss.childNodes.length > 0 && css.childNodes.length > 0 && - oldCss.firstChild.nodeValue === css.firstChild.nodeValue); - } - - var head = document.getElementsByTagName('head')[0]; - - // If there is no oldCss, just append; otherwise, only append if we need - // to replace oldCss with an updated stylesheet - if (oldCss === null || keepOldCss === false) { - var nextEl = sheet && sheet.nextSibling || null; - if (nextEl) { - nextEl.parentNode.insertBefore(css, nextEl); - } else { - head.appendChild(css); - } - } - if (oldCss && keepOldCss === false) { - oldCss.parentNode.removeChild(oldCss); - } - - // For IE. - // This needs to happen *after* the style element is added to the DOM, otherwise IE 7 and 8 may crash. - // See http://social.msdn.microsoft.com/Forums/en-US/7e081b65-878a-4c22-8e68-c10d39c2ed32/internet-explorer-crashes-appending-style-element-to-head - if (css.styleSheet) { - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.', logLevel.info); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save', logLevel.errors); - } - } -} - -function postProcessCSS(styles) { - if (less.postProcessor && typeof less.postProcessor === 'function') { - styles = less.postProcessor.call(styles, styles) || styles; - } - return styles; -} - -function errorHTML(e, rootHref) { - var id = 'less-error-message:' + extractId(rootHref || ""); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, errors = []; - var filename = e.filename || rootHref; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - '

    ' + '

    in ' + filenameNoPath + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - '
      ' + errors.join('') + '
    '; - } else if (e.stack) { - content += '
    ' + e.stack.split('\n').slice(1).join('
    '); - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #dd6666;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.line {', - 'color: #ff0000;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); - - if (less.env == 'development') { - timer = setInterval(function () { - if (document.body) { - if (document.getElementById(id)) { - document.body.replaceChild(elem, document.getElementById(id)); - } else { - document.body.insertBefore(elem, document.body.firstChild); - } - clearInterval(timer); - } - }, 10); - } -} - -function error(e, rootHref) { - if (!less.errorReporting || less.errorReporting === "html") { - errorHTML(e, rootHref); - } else if (less.errorReporting === "console") { - errorConsole(e, rootHref); - } else if (typeof less.errorReporting === 'function') { - less.errorReporting("add", e, rootHref); - } -} - -function removeErrorHTML(path) { - var node = document.getElementById('less-error-message:' + extractId(path)); - if (node) { - node.parentNode.removeChild(node); - } -} - -function removeErrorConsole(path) { - //no action -} - -function removeError(path) { - if (!less.errorReporting || less.errorReporting === "html") { - removeErrorHTML(path); - } else if (less.errorReporting === "console") { - removeErrorConsole(path); - } else if (typeof less.errorReporting === 'function') { - less.errorReporting("remove", path); - } -} - -function loadStyles(modifyVars) { - var styles = document.getElementsByTagName('style'), - style; - for (var i = 0; i < styles.length; i++) { - style = styles[i]; - if (style.type.match(typePattern)) { - var env = new less.tree.parseEnv(less), - lessText = style.innerHTML || ''; - env.filename = document.location.href.replace(/#.*$/, ''); - - if (modifyVars || less.globalVars) { - env.useFileCache = true; - } - - /*jshint loopfunc:true */ - // use closure to store current value of i - var callback = (function(style) { - return function (e, cssAST) { - if (e) { - return error(e, "inline"); - } - var css = cssAST.toCSS(less); - style.type = 'text/css'; - if (style.styleSheet) { - style.styleSheet.cssText = css; - } else { - style.innerHTML = css; - } - }; - })(style); - new(less.Parser)(env).parse(lessText, callback, {globalVars: less.globalVars, modifyVars: modifyVars}); - } - } -} - -function extractUrlParts(url, baseUrl) { - // urlParts[1] = protocol&hostname || / - // urlParts[2] = / if path relative to host base - // urlParts[3] = directories - // urlParts[4] = filename - // urlParts[5] = parameters - - var urlPartsRegex = /^((?:[a-z-]+:)?\/+?(?:[^\/\?#]*\/)|([\/\\]))?((?:[^\/\\\?#]*[\/\\])*)([^\/\\\?#]*)([#\?].*)?$/i, - urlParts = url.match(urlPartsRegex), - returner = {}, directories = [], i, baseUrlParts; - - if (!urlParts) { - throw new Error("Could not parse sheet href - '"+url+"'"); - } - - // Stylesheets in IE don't always return the full path - if (!urlParts[1] || urlParts[2]) { - baseUrlParts = baseUrl.match(urlPartsRegex); - if (!baseUrlParts) { - throw new Error("Could not parse page url - '"+baseUrl+"'"); - } - urlParts[1] = urlParts[1] || baseUrlParts[1] || ""; - if (!urlParts[2]) { - urlParts[3] = baseUrlParts[3] + urlParts[3]; - } - } - - if (urlParts[3]) { - directories = urlParts[3].replace(/\\/g, "/").split("/"); - - // extract out . before .. so .. doesn't absorb a non-directory - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".") { - directories.splice(i, 1); - i -= 1; - } - } - - for(i = 0; i < directories.length; i++) { - if (directories[i] === ".." && i > 0) { - directories.splice(i-1, 2); - i -= 2; - } - } - } - - returner.hostPart = urlParts[1]; - returner.directories = directories; - returner.path = urlParts[1] + directories.join("/"); - returner.fileUrl = returner.path + (urlParts[4] || ""); - returner.url = returner.fileUrl + (urlParts[5] || ""); - return returner; -} - -function pathDiff(url, baseUrl) { - // diff between two paths to create a relative path - - var urlParts = extractUrlParts(url), - baseUrlParts = extractUrlParts(baseUrl), - i, max, urlDirectories, baseUrlDirectories, diff = ""; - if (urlParts.hostPart !== baseUrlParts.hostPart) { - return ""; - } - max = Math.max(baseUrlParts.directories.length, urlParts.directories.length); - for(i = 0; i < max; i++) { - if (baseUrlParts.directories[i] !== urlParts.directories[i]) { break; } - } - baseUrlDirectories = baseUrlParts.directories.slice(i); - urlDirectories = urlParts.directories.slice(i); - for(i = 0; i < baseUrlDirectories.length-1; i++) { - diff += "../"; - } - for(i = 0; i < urlDirectories.length-1; i++) { - diff += urlDirectories[i] + "/"; - } - return diff; -} - -function getXMLHttpRequest() { - if (window.XMLHttpRequest && (window.location.protocol !== "file:" || !("ActiveXObject" in window))) { - return new XMLHttpRequest(); - } else { - try { - /*global ActiveXObject */ - return new ActiveXObject("Microsoft.XMLHTTP"); - } catch (e) { - log("browser doesn't support AJAX.", logLevel.errors); - return null; - } - } -} - -function doXHR(url, type, callback, errback) { - var xhr = getXMLHttpRequest(); - var async = isFileProtocol ? less.fileAsync : less.async; - - if (typeof(xhr.overrideMimeType) === 'function') { - xhr.overrideMimeType('text/css'); - } - log("XHR: Getting '" + url + "'", logLevel.debug); - xhr.open('GET', url, async); - xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); - xhr.send(null); - - function handleResponse(xhr, callback, errback) { - if (xhr.status >= 200 && xhr.status < 300) { - callback(xhr.responseText, - xhr.getResponseHeader("Last-Modified")); - } else if (typeof(errback) === 'function') { - errback(xhr.status, url); - } - } - - if (isFileProtocol && !less.fileAsync) { - if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { - callback(xhr.responseText); - } else { - errback(xhr.status, url); - } - } else if (async) { - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - handleResponse(xhr, callback, errback); - } - }; - } else { - handleResponse(xhr, callback, errback); - } -} - -function loadFile(originalHref, currentFileInfo, callback, env, modifyVars) { - - if (currentFileInfo && currentFileInfo.currentDirectory && !/^([a-z-]+:)?\//.test(originalHref)) { - originalHref = currentFileInfo.currentDirectory + originalHref; - } - - // sheet may be set to the stylesheet for the initial load or a collection of properties including - // some env variables for imports - var hrefParts = extractUrlParts(originalHref, window.location.href); - var href = hrefParts.url; - var newFileInfo = { - currentDirectory: hrefParts.path, - filename: href - }; - - if (currentFileInfo) { - newFileInfo.entryPath = currentFileInfo.entryPath; - newFileInfo.rootpath = currentFileInfo.rootpath; - newFileInfo.rootFilename = currentFileInfo.rootFilename; - newFileInfo.relativeUrls = currentFileInfo.relativeUrls; - } else { - newFileInfo.entryPath = hrefParts.path; - newFileInfo.rootpath = less.rootpath || hrefParts.path; - newFileInfo.rootFilename = href; - newFileInfo.relativeUrls = env.relativeUrls; - } - - if (newFileInfo.relativeUrls) { - if (env.rootpath) { - newFileInfo.rootpath = extractUrlParts(env.rootpath + pathDiff(hrefParts.path, newFileInfo.entryPath)).path; - } else { - newFileInfo.rootpath = hrefParts.path; - } - } - - if (env.useFileCache && fileCache[href]) { - try { - var lessText = fileCache[href]; - callback(null, lessText, href, newFileInfo, { lastModified: new Date() }); - } catch (e) { - callback(e, null, href); - } - return; - } - - doXHR(href, env.mime, function (data, lastModified) { - // per file cache - fileCache[href] = data; - - // Use remote copy (re-parse) - try { - callback(null, data, href, newFileInfo, { lastModified: lastModified }); - } catch (e) { - callback(e, null, href); - } - }, function (status, url) { - callback({ type: 'File', message: "'" + url + "' wasn't found (" + status + ")" }, null, href); - }); -} - -function loadStyleSheet(sheet, callback, reload, remaining, modifyVars) { - - var env = new less.tree.parseEnv(less); - env.mime = sheet.type; - - if (modifyVars || less.globalVars) { - env.useFileCache = true; - } - - loadFile(sheet.href, null, function(e, data, path, newFileInfo, webInfo) { - - if (webInfo) { - webInfo.remaining = remaining; - - var css = cache && cache.getItem(path), - timestamp = cache && cache.getItem(path + ':timestamp'); - - if (!reload && timestamp && webInfo.lastModified && - (new(Date)(webInfo.lastModified).valueOf() === - new(Date)(timestamp).valueOf())) { - // Use local copy - createCSS(css, sheet); - webInfo.local = true; - callback(null, null, data, sheet, webInfo, path); - return; - } - } - - //TODO add tests around how this behaves when reloading - removeError(path); - - if (data) { - env.currentFileInfo = newFileInfo; - new(less.Parser)(env).parse(data, function (e, root) { - if (e) { return callback(e, null, null, sheet); } - try { - callback(e, root, data, sheet, webInfo, path); - } catch (e) { - callback(e, null, null, sheet); - } - }, {modifyVars: modifyVars, globalVars: less.globalVars}); - } else { - callback(e, null, null, sheet, webInfo, path); - } - }, env, modifyVars); -} - -function loadStyleSheets(callback, reload, modifyVars) { - for (var i = 0; i < less.sheets.length; i++) { - loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1), modifyVars); - } -} - -function initRunningMode(){ - if (less.env === 'development') { - less.optimization = 0; - less.watchTimer = setInterval(function () { - if (less.watchMode) { - loadStyleSheets(function (e, root, _, sheet, env) { - if (e) { - error(e, sheet.href); - } else if (root) { - var styles = root.toCSS(less); - styles = postProcessCSS(styles); - createCSS(styles, sheet, env.lastModified); - } - }); - } - }, less.poll); - } else { - less.optimization = 3; - } -} - - - -// -// Watch mode -// -less.watch = function () { - if (!less.watchMode ){ - less.env = 'development'; - initRunningMode(); - } - this.watchMode = true; - return true; -}; - -less.unwatch = function () {clearInterval(less.watchTimer); this.watchMode = false; return false; }; - -if (/!watch/.test(location.hash)) { - less.watch(); -} - -if (less.env != 'development') { - try { - cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; - } catch (_) {} -} - -// -// Get all tags with the 'rel' attribute set to "stylesheet/less" -// -var links = document.getElementsByTagName('link'); - -less.sheets = []; - -for (var i = 0; i < links.length; i++) { - if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && - (links[i].type.match(typePattern)))) { - less.sheets.push(links[i]); - } -} - -// -// With this function, it's possible to alter variables and re-render -// CSS without reloading less-files -// -less.modifyVars = function(record) { - less.refresh(false, record); -}; - -less.refresh = function (reload, modifyVars) { - var startTime, endTime; - startTime = endTime = new Date(); - - loadStyleSheets(function (e, root, _, sheet, env) { - if (e) { - return error(e, sheet.href); - } - if (env.local) { - log("loading " + sheet.href + " from cache.", logLevel.info); - } else { - log("parsed " + sheet.href + " successfully.", logLevel.debug); - var styles = root.toCSS(less); - styles = postProcessCSS(styles); - createCSS(styles, sheet, env.lastModified); - } - log("css for " + sheet.href + " generated in " + (new Date() - endTime) + 'ms', logLevel.info); - if (env.remaining === 0) { - log("less has finished. css generated in " + (new Date() - startTime) + 'ms', logLevel.info); - } - endTime = new Date(); - }, reload, modifyVars); - - loadStyles(modifyVars); -}; - -less.refreshStyles = loadStyles; - -less.Parser.fileLoader = loadFile; - -less.refresh(less.env === 'development'); - -// amd.js -// -// Define Less as an AMD module. -if (typeof define === "function" && define.amd) { - define(function () { return less; } ); -} - -})(window); \ No newline at end of file diff --git a/awx/ui/static/lib/less/dist/less-1.7.3.min.js b/awx/ui/static/lib/less/dist/less-1.7.3.min.js deleted file mode 100644 index 049efeac48..0000000000 --- a/awx/ui/static/lib/less/dist/less-1.7.3.min.js +++ /dev/null @@ -1,16 +0,0 @@ -/*! - * Less - Leaner CSS v1.7.3 - * http://lesscss.org - * - * Copyright (c) 2009-2014, Alexis Sellier - * Licensed under the Apache v2 License. - * - */ - - /** * @license Apache v2 - */ - -!function(a,b){function c(b){return a.less[b.split("/")[1]]}function d(a,b){"undefined"!=typeof console&&w.logLevel>=b&&console.log("less: "+a)}function e(a){return a.replace(/^[a-z-]+:\/+?[^\/]+/,"").replace(/^\//,"").replace(/\.[a-zA-Z]+$/,"").replace(/[^\.\w-]+/g,"-").replace(/\./g,":")}function f(a,c){var e="{line} {content}",f=a.filename||c,g=[],h=(a.type||"Syntax")+"Error: "+(a.message||"There is an error in your .less file")+" in "+f+" ",i=function(a,c,d){a.extract[c]!==b&&g.push(e.replace(/\{line\}/,(parseInt(a.line,10)||0)+(c-1)).replace(/\{class\}/,d).replace(/\{content\}/,a.extract[c]))};a.extract?(i(a,0,""),i(a,1,"line"),i(a,2,""),h+="on line "+a.line+", column "+(a.column+1)+":\n"+g.join("\n")):a.stack&&(h+=a.stack),d(h,z.errors)}function g(a,b,c){var f=b.href||"",g="less:"+(b.title||e(f)),h=document.getElementById(g),i=!1,j=document.createElement("style");j.setAttribute("type","text/css"),b.media&&j.setAttribute("media",b.media),j.id=g,j.styleSheet||(j.appendChild(document.createTextNode(a)),i=null!==h&&h.childNodes.length>0&&j.childNodes.length>0&&h.firstChild.nodeValue===j.firstChild.nodeValue);var k=document.getElementsByTagName("head")[0];if(null===h||i===!1){var l=b&&b.nextSibling||null;l?l.parentNode.insertBefore(j,l):k.appendChild(j)}if(h&&i===!1&&h.parentNode.removeChild(h),j.styleSheet)try{j.styleSheet.cssText=a}catch(m){throw new Error("Couldn't reassign styleSheet.cssText.")}if(c&&D){d("saving "+f+" to cache.",z.info);try{D.setItem(f,a),D.setItem(f+":timestamp",c)}catch(m){d("failed to save",z.errors)}}}function h(a){return w.postProcessor&&"function"==typeof w.postProcessor&&(a=w.postProcessor.call(a,a)||a),a}function i(a,c){var d,f,h="less-error-message:"+e(c||""),i='
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(match = tok.exec(current))) { - return null; - } - - length = match[0].length; - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - - // Specialization of $(tok) - function $re(tok) { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - var m = tok.exec(current); - if (!m) { - return null; - } - - skipWhitespace(m[0].length); - if(typeof m === "string") { - return m; - } - - return m.length === 1 ? m[0] : m; - } - - var _$re = $re; - - // Specialization of $(tok) - function $char(tok) { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - curr = i - currentPos, - endIndex = i + current.length - curr, - mem = (i += length), - inp = input, - c; - - for (; i < endIndex; i++) { - c = inp.charCodeAt(i); - if (c > 32) { - break; - } - - if ((c !== 32) && (c !== 10) && (c !== 9) && (c !== 13)) { - break; - } - } - - current = current.slice(length + i - mem + curr); - currentPos = i; - - if (!current.length && (j < chunks.length - 1)) { - current = chunks[++j]; - skipWhitespace(0); // skip space at the beginning of a chunk - return true; // things changed - } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg, index) { - // some older browsers return typeof 'function' for RegExp - var result = (Object.prototype.toString.call(arg) === '[object Function]') ? arg.call(parsers) : $(arg); - if (result) { - return result; - } - error(msg || (typeof(arg) === 'string' ? 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'\n' + less.Parser.serializeVars(additionalData.modifyVars) : ''; - - if (globalVars || (additionalData && additionalData.banner)) { - preText = ((additionalData && additionalData.banner) ? additionalData.banner : "") + globalVars; - parser.imports.contentsIgnoredChars[env.currentFileInfo.filename] = preText.length; - } - - str = str.replace(/\r\n/g, '\n'); - // Remove potential UTF Byte Order Mark - input = str = preText + str.replace(/^\uFEFF/, '') + modifyVars; - parser.imports.contents[env.currentFileInfo.filename] = str; - - // Split the input into chunks. - chunks = (function (input) { - var len = input.length, level = 0, parenLevel = 0, - lastOpening, lastOpeningParen, lastMultiComment, lastMultiCommentEndBrace, - chunks = [], emitFrom = 0, - parserCurrentIndex, currentChunkStartIndex, cc, cc2, matched; - - function fail(msg, index) { - error = new(LessError)({ - index: index || parserCurrentIndex, - type: 'Parse', - message: msg, - filename: env.currentFileInfo.filename - }, env); - } - - function emitChunk(force) { - var len = parserCurrentIndex - emitFrom; - if (((len < 512) && !force) || !len) { - return; - } - chunks.push(input.slice(emitFrom, parserCurrentIndex + 1)); - emitFrom = parserCurrentIndex + 1; - } - - for (parserCurrentIndex = 0; parserCurrentIndex < len; parserCurrentIndex++) { - cc = input.charCodeAt(parserCurrentIndex); - if (((cc >= 97) && (cc <= 122)) || (cc < 34)) { - // a-z or whitespace - continue; - } - - switch (cc) { - case 40: // ( - parenLevel++; - lastOpeningParen = parserCurrentIndex; - continue; - case 41: // ) - if (--parenLevel < 0) { - return fail("missing opening `(`"); - } - continue; - case 59: // ; - if (!parenLevel) { emitChunk(); } - continue; - case 123: // { - level++; - lastOpening = parserCurrentIndex; - continue; - case 125: // } - if (--level < 0) { - return fail("missing opening `{`"); - } - if (!level && !parenLevel) { emitChunk(); } - continue; - case 92: // \ - if (parserCurrentIndex < len - 1) { parserCurrentIndex++; continue; } - return fail("unescaped `\\`"); - case 34: - case 39: - case 96: // ", ' and ` - matched = 0; - currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 1; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 > 96) { continue; } - if (cc2 == cc) { matched = 1; break; } - if (cc2 == 92) { // \ - if (parserCurrentIndex == len - 1) { - return fail("unescaped `\\`"); - } - parserCurrentIndex++; - } - } - if (matched) { continue; } - return fail("unmatched `" + String.fromCharCode(cc) + "`", currentChunkStartIndex); - case 47: // /, check for comment - if (parenLevel || (parserCurrentIndex == len - 1)) { continue; } - cc2 = input.charCodeAt(parserCurrentIndex + 1); - if (cc2 == 47) { - // //, find lnfeed - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if ((cc2 <= 13) && ((cc2 == 10) || (cc2 == 13))) { break; } - } - } else if (cc2 == 42) { - // /*, find */ - lastMultiComment = currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len - 1; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 == 125) { lastMultiCommentEndBrace = parserCurrentIndex; } - if (cc2 != 42) { continue; } - if (input.charCodeAt(parserCurrentIndex + 1) == 47) { break; } - } - if (parserCurrentIndex == len - 1) { - return fail("missing closing `*/`", currentChunkStartIndex); - } - parserCurrentIndex++; - } - continue; - case 42: // *, check for unmatched */ - if ((parserCurrentIndex < len - 1) && (input.charCodeAt(parserCurrentIndex + 1) == 47)) { - return fail("unmatched `/*`"); - } - continue; - } - } - - if (level !== 0) { - if ((lastMultiComment > lastOpening) && (lastMultiCommentEndBrace > lastMultiComment)) { - return fail("missing closing `}` or `*/`", lastOpening); - } else { - return fail("missing closing `}`", lastOpening); - } - } else if (parenLevel !== 0) { - return fail("missing closing `)`", lastOpeningParen); - } - - emitChunk(true); - return chunks; - })(str); - - if (error) { - return callback(new(LessError)(error, env)); - } - - current = chunks[0]; - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)(null, this.parsers.primary()); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - return function (options, variables) { - options = options || {}; - var evaldRoot, - css, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, null, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var preEvalVisitors = [], - visitors = [ - new(tree.joinSelectorVisitor)(), - new(tree.processExtendsVisitor)(), - new(tree.toCSSVisitor)({compress: Boolean(options.compress)}) - ], i, root = this; - - if (options.plugins) { - for(i =0; i < options.plugins.length; i++) { - if (options.plugins[i].isPreEvalVisitor) { - preEvalVisitors.push(options.plugins[i]); - } else { - if (options.plugins[i].isPreVisitor) { - visitors.splice(0, 0, options.plugins[i]); - } else { - visitors.push(options.plugins[i]); - } - } - } - } - - for(i = 0; i < preEvalVisitors.length; i++) { - preEvalVisitors[i].run(root); - } - - evaldRoot = evaluate.call(root, evalEnv); - - for(i = 0; i < visitors.length; i++) { - visitors[i].run(evaldRoot); - } - - if (options.sourceMap) { - evaldRoot = new tree.sourceMapOutput( - { - contentsIgnoredCharsMap: parser.imports.contentsIgnoredChars, - writeSourceMap: options.writeSourceMap, - rootNode: evaldRoot, - contentsMap: parser.imports.contents, - sourceMapFilename: options.sourceMapFilename, - sourceMapURL: options.sourceMapURL, - outputFilename: options.sourceMapOutputFilename, - sourceMapBasepath: options.sourceMapBasepath, - sourceMapRootpath: options.sourceMapRootpath, - outputSourceFiles: options.outputSourceFiles, - sourceMapGenerator: options.sourceMapGenerator - }); - } - - css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits), - numPrecision: 8}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.cleancss && less.mode === 'node') { - var CleanCSS = require('clean-css'), - cleancssOptions = options.cleancssOptions || {}; - - if (cleancssOptions.keepSpecialComments === undefined) { - cleancssOptions.keepSpecialComments = "*"; - } - cleancssOptions.processImport = false; - cleancssOptions.noRebase = true; - if (cleancssOptions.noAdvanced === undefined) { - cleancssOptions.noAdvanced = true; - } - - return new CleanCSS(cleancssOptions).minify(css); - } else if (options.compress) { - return css.replace(/(^(\s)+)|((\s)+$)/g, ""); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - var loc = getLocation(i, input); - lines = input.split('\n'); - line = loc.line + 1; - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: loc.column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - return callback(e); - } - else { - return callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - return finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some Less code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: parsers = { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var mixin = this.mixin, $re = _$re, root = [], node; - - while (current) - { - node = this.extendRule() || mixin.definition() || this.rule() || this.ruleset() || - mixin.call() || this.comment() || this.rulesetCall() || this.directive(); - if (node) { - root.push(node); - } else { - if (!($re(/^[\s\n]+/) || $re(/^;+/))) { - break; - } - } - if (peekChar('}')) { - break; - } - } - - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') { return; } - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($re(/^\/\/.*/), true, i, env.currentFileInfo); - } - comment = $re(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/); - if (comment) { - return new(tree.Comment)(comment, false, i, env.currentFileInfo); - } - }, - - comments: function () { - var comment, comments = []; - - while(true) { - comment = this.comment(); - if (!comment) { - break; - } - comments.push(comment); - } - - return comments; - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; } - - if (e) { $char('~'); } - - str = $re(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/); - if (str) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - k = $re(/^%|^[_A-Za-z-][_A-Za-z0-9-]*/); - if (k) { - var color = tree.Color.fromKeyword(k); - if (color) { - return color; - } - return new(tree.Keyword)(k); - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(current); - if (!name) { return; } - - name = name[1]; - nameLC = name.toLowerCase(); - if (nameLC === 'url') { - return null; - } - - i += name.length; - - if (nameLC === 'alpha') { - alpha_ret = parsers.alpha(); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $char('('); // Parse the '(' and consume whitespace. - - args = this.arguments(); - - if (! $char(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (true) { - arg = this.assignment() || parsers.expression(); - if (!arg) { - break; - } - args.push(arg); - if (! $char(',')) { - break; - } - } - return args; - }, - literal: function () { - return this.dimension() || - this.color() || - this.quoted() || - this.unicodeDescriptor(); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - key = $re(/^\w+(?=\s?=)/i); - if (!key) { - return; - } - if (!$char('=')) { - return; - } - value = parsers.entity(); - if (value) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$re(/^url\(/)) { - return; - } - - value = this.quoted() || this.variable() || - $re(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expectChar(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $re(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var curly, index = i; - - if (input.charAt(i) === '@' && (curly = $re(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $re(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - var colorCandidateString = rgb.input.match(/^#([\w]+).*/); // strip colons, brackets, whitespaces and other characters that should not definitely be part of color string - colorCandidateString = colorCandidateString[1]; - if (!colorCandidateString.match(/^[A-Fa-f0-9]+$/)) { // verify if candidate consists only of allowed HEX characters - error("Invalid HEX color code"); - } - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) { - return; - } - - value = $re(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/); - if (value) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - ud = $re(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/); - if (ud) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '`') { return; } - if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) { - error("You are using JavaScript, which has been disabled."); - } - - if (e) { $char('~'); } - - str = $re(/^`([^`]*)`/); - if (str) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*:/))) { return name[1]; } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink(); - // - rulesetCall: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*\(\s*\)\s*;/))) { - return new tree.RulesetCall(name[1]); - } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList, extend; - - if (!(isRule ? $re(/^&:extend\(/) : $re(/^:extend\(/))) { return; } - - do { - option = null; - elements = null; - while (! (option = $re(/^(all)(?=\s*(\)|,))/))) { - e = this.element(); - if (!e) { break; } - if (elements) { elements.push(e); } else { elements = [ e ]; } - } - - option = option && option[1]; - if (!elements) - error("Missing target selector for :extend()."); - extend = new(tree.Extend)(new(tree.Selector)(elements), option, index); - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - - } while($char(",")); - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var s = input.charAt(i), important = false, index = i, elemIndex, - elements, elem, e, c, args; - - if (s !== '.' && s !== '#') { return; } - - save(); // stop us absorbing part of an invalid selector - - while (true) { - elemIndex = i; - e = $re(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/); - if (!e) { - break; - } - elem = new(tree.Element)(c, e, elemIndex, env.currentFileInfo); - if (elements) { elements.push(elem); } else { elements = [ elem ]; } - c = $char('>'); - } - - if (elements) { - if ($char('(')) { - args = this.args(true).args; - expectChar(')'); - } - - if (parsers.important()) { - important = true; - } - - if (parsers.end()) { - forget(); - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - } - - restore(); - }, - args: function (isCall) { - var parsers = parser.parsers, entities = parsers.entities, - returner = { args:null, variadic: false }, - expressions = [], argsSemiColon = [], argsComma = [], - isSemiColonSeperated, expressionContainsNamed, name, nameLoop, value, arg; - - save(); - - while (true) { - if (isCall) { - arg = parsers.detachedRuleset() || parsers.expression(); - } else { - parsers.comments(); - if (input.charAt(i) === '.' && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = entities.variable() || entities.literal() || entities.keyword(); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value && arg.value.length == 1) { - val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($char(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - - // we do not support setting a ruleset as a default variable - it doesn't make sense - // However if we do want to add it, there is nothing blocking it, just don't error - // and remove isCall dependency below - value = (isCall && parsers.detachedRuleset()) || parsers.expression(); - - if (!value) { - if (isCall) { - error("could not understand value for named argument"); - } else { - restore(); - returner.args = []; - return returner; - } - } - nameLoop = (name = val.name); - } else if (!isCall && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($char(',')) { - continue; - } - - if ($char(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - forget(); - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) { - return; - } - - save(); - - match = $re(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/); - if (match) { - name = match[1]; - - var argInfo = this.args(false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. - // also - // .mixincall(@a: {rule: set;}); - // so we have to be nice and restore - if (!$char(')')) { - furthest = i; - restore(); - return; - } - - parsers.comments(); - - if ($re(/^when/)) { // Guard - cond = expect(parsers.conditions, 'expected condition'); - } - - ruleset = parsers.block(); - - if (ruleset) { - forget(); - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } else { - forget(); - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - var entities = this.entities; - - return entities.literal() || entities.variable() || entities.url() || - entities.call() || entities.keyword() || entities.javascript() || - this.comment(); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $char(';') || peekChar('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $re(/^\(opacity=/i)) { return; } - value = $re(/^\d+/) || this.entities.variable(); - if (value) { - expectChar(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, c, v, index = i; - - c = this.combinator(); - - e = $re(/^(?:\d+\.\d+|\d+)%/) || $re(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $char('*') || $char('&') || this.attribute() || $re(/^\([^()@]+\)/) || $re(/^[\.#](?=@)/) || - this.entities.variableCurly(); - - if (! e) { - save(); - if ($char('(')) { - if ((v = this.selector()) && $char(')')) { - e = new(tree.Paren)(v); - forget(); - } else { - restore(); - } - } else { - forget(); - } - } - - if (e) { return new(tree.Element)(c, e, index, env.currentFileInfo); } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|' || c === '^') { - i++; - if (input.charAt(i) === '^') { - c = '^^'; - i++; - } - while (isWhitespace(input, i)) { i++; } - return new(tree.Combinator)(c); - } else if (isWhitespace(input, i - 1)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - // - // A CSS selector (see selector below) - // with less extensions e.g. the ability to extend and guard - // - lessSelector: function () { - return this.selector(true); - }, - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function (isLess) { - var index = i, $re = _$re, elements, extendList, c, e, extend, when, condition; - - while ((isLess && (extend = this.extend())) || (isLess && (when = $re(/^when/))) || (e = this.element())) { - if (when) { - condition = expect(this.conditions, 'expected condition'); - } else if (condition) { - error("CSS guard can only be used at the end of selector"); - } else if (extend) { - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - } else { - if (extendList) { error("Extend can only be used at the end of selector"); } - c = input.charAt(i); - if (elements) { elements.push(e); } else { elements = [ e ]; } - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { - break; - } - } - - if (elements) { return new(tree.Selector)(elements, extendList, condition, index, env.currentFileInfo); } - if (extendList) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - if (! $char('[')) { return; } - - var entities = this.entities, - key, val, op; - - if (!(key = entities.variableCurly())) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - op = $re(/^[|~*$^]?=/); - if (op) { - val = entities.quoted() || $re(/^[0-9]+%/) || $re(/^[\w-]+/) || entities.variableCurly(); - } - - expectChar(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($char('{') && (content = this.primary()) && $char('}')) { - return content; - } - }, - - blockRuleset: function() { - var block = this.block(); - - if (block) { - block = new tree.Ruleset(null, block); - } - return block; - }, - - detachedRuleset: function() { - var blockRuleset = this.blockRuleset(); - if (blockRuleset) { - return new tree.DetachedRuleset(blockRuleset); - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors, s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - while (true) { - s = this.lessSelector(); - if (!s) { - break; - } - if (selectors) { selectors.push(s); } else { selectors = [ s ]; } - this.comments(); - if (s.condition && selectors.length > 1) { - error("Guards are only currently allowed on a single selector."); - } - if (! $char(',')) { break; } - if (s.condition) { - error("Guards are only currently allowed on a single selector."); - } - this.comments(); - } - - if (selectors && (rules = this.block())) { - forget(); - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) { - ruleset.debugInfo = debugInfo; - } - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, startOfRule = i, c = input.charAt(startOfRule), important, merge, isVariable; - - if (c === '.' || c === '#' || c === '&') { return; } - - save(); - - name = this.variable() || this.ruleProperty(); - if (name) { - isVariable = typeof name === "string"; - - if (isVariable) { - value = this.detachedRuleset(); - } - - if (!value) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || isVariable) ? - (this.value() || this.anonymousValue()) : - (this.anonymousValue() || this.value()); - - important = this.important(); - - // a name returned by this.ruleProperty() is always an array of the form: - // [string-1, ..., string-n, ""] or [string-1, ..., string-n, "+"] - // where each item is a tree.Keyword or tree.Variable - merge = !isVariable && name.pop().value; - } - - if (value && this.end()) { - forget(); - return new (tree.Rule)(name, value, important, merge, startOfRule, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } else { - forget(); - } - }, - anonymousValue: function () { - var match; - match = /^([^@+\/'"*`(;{}-]*);/.exec(current); - if (match) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environment, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - var dir = $re(/^@import?\s+/); - - if (dir) { - var options = (dir ? this.importOptions() : null) || {}; - - if ((path = this.entities.quoted() || this.entities.url())) { - features = this.mediaFeatures(); - - if (!$(';')) { - i = index; - error("missing semi-colon or unrecognised media features on import"); - } - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - else - { - i = index; - error("malformed import statement"); - } - } - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $char('(')) { return null; } - do { - o = this.importOption(); - if (o) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $char(',')) { break; } - } - } while (o); - expectChar(')'); - return options; - }, - - importOption: function() { - var opt = $re(/^(less|css|multiple|once|inline|reference)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var entities = this.entities, nodes = [], e, p; - do { - e = entities.keyword() || entities.variable(); - if (e) { - nodes.push(e); - } else if ($char('(')) { - p = this.property(); - e = this.value(); - if ($char(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null; } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var entities = this.entities, features = [], e; - do { - e = this.mediaFeature(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } else { - e = entities.variable(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - if ($re(/^@media/)) { - features = this.mediaFeatures(); - - rules = this.block(); - if (rules) { - media = new(tree.Media)(rules, features, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - media.debugInfo = debugInfo; - } - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var index = i, name, value, rules, nonVendorSpecificName, - hasIdentifier, hasExpression, hasUnknown, hasBlock = true; - - if (input.charAt(i) !== '@') { return; } - - value = this['import']() || this.media(); - if (value) { - return value; - } - - save(); - - name = $re(/^@[a-z-]+/); - - if (!name) { return; } - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - /* - case "@font-face": - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - */ - case "@charset": - hasIdentifier = true; - hasBlock = false; - break; - case "@namespace": - hasExpression = true; - hasBlock = false; - break; - case "@keyframes": - hasIdentifier = true; - break; - case "@host": - case "@page": - case "@document": - case "@supports": - hasUnknown = true; - break; - } - - if (hasIdentifier) { - value = this.entity(); - if (!value) { - error("expected " + name + " identifier"); - } - } else if (hasExpression) { - value = this.expression(); - if (!value) { - error("expected " + name + " expression"); - } - } else if (hasUnknown) { - value = ($re(/^[^{;]+/) || '').trim(); - if (value) { - value = new(tree.Anonymous)(value); - } - } - - if (hasBlock) { - rules = this.blockRuleset(); - } - - if (rules || (!hasBlock && value && $char(';'))) { - forget(); - return new(tree.Directive)(name, value, rules, index, env.currentFileInfo, - env.dumpLineNumbers ? getDebugInfo(index, input, env) : null); - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = []; - - do { - e = this.expression(); - if (e) { - expressions.push(e); - if (! $char(',')) { break; } - } - } while(e); - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $re(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($char('(')) { - a = this.addition(); - if (a) { - e = new(tree.Expression)([a]); - expectChar(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced; - m = this.operand(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - if (peek(/^\/[*\/]/)) { - break; - } - - save(); - - op = $char('/') || $char('*'); - - if (!op) { forget(); break; } - - a = this.operand(); - - if (!a) { restore(); break; } - forget(); - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - m = this.multiplication(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - op = $re(/^[-+]\s+/) || (!isSpaced && ($char('+') || $char('-'))); - if (!op) { - break; - } - a = this.multiplication(); - if (!a) { - break; - } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - a = this.condition(); - if (a) { - while (true) { - if (!peek(/^,\s*(not\s*)?\(/) || !$char(',')) { - break; - } - b = this.condition(); - if (!b) { - break; - } - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var entities = this.entities, index = i, negate = false, - a, b, c, op; - - if ($re(/^not/)) { negate = true; } - expectChar('('); - a = this.addition() || entities.keyword() || entities.quoted(); - if (a) { - op = $re(/^(?:>=|<=|=<|[<=>])/); - if (op) { - b = this.addition() || entities.keyword() || entities.quoted(); - if (b) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expectChar(')'); - return $re(/^and/) ? new(tree.Condition)('and', c, this.condition()) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var entities = this.entities, - p = input.charAt(i + 1), negate; - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $char('-'); } - var o = this.sub() || entities.dimension() || - entities.color() || entities.variable() || - entities.call(); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var entities = [], e, delim; - - do { - e = this.addition() || this.entity(); - if (e) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/)) { - delim = $char('/'); - if (delim) { - entities.push(new(tree.Anonymous)(delim)); - } - } - } - } while (e); - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name = $re(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/); - if (name) { - return name[1]; - } - }, - ruleProperty: function () { - var c = current, name = [], index = [], length = 0, s, k; - - function match(re) { - var a = re.exec(c); - if (a) { - index.push(i + length); - length += a[0].length; - c = c.slice(a[1].length); - return name.push(a[1]); - } - } - - match(/^(\*?)/); - while (match(/^((?:[\w-]+)|(?:@\{[\w-]+\}))/)); // ! - if ((name.length > 1) && match(/^\s*((?:\+_|\+)?)\s*:/)) { - // at last, we have the complete match now. move forward, - // convert name particles to tree objects and return: - skipWhitespace(length); - if (name[0] === '') { - name.shift(); - index.shift(); - } - for (k = 0; k < name.length; k++) { - s = name[k]; - name[k] = (s.charAt(0) !== '@') - ? new(tree.Keyword)(s) - : new(tree.Variable)('@' + s.slice(2, -1), - index[k], env.currentFileInfo); - } - return name; - } - } - } - }; - return parser; -}; -less.Parser.serializeVars = function(vars) { - var s = ''; - - for (var name in vars) { - if (Object.hasOwnProperty.call(vars, name)) { - var value = vars[name]; - s += ((name[0] === '@') ? '' : '@') + name +': '+ value + - ((('' + value).slice(-1) === ';') ? '' : ';'); - } - } - - return s; -}; - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 255); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; } - else if (h * 2 < 1) { return m2; } - else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; } - else { return m1; } - } - - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(color.toHSL().h); - }, - saturation: function (color) { - return new(tree.Dimension)(color.toHSL().s * 100, '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(color.toHSL().l * 100, '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(color.toHSV().h); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(color.toHSV().s * 100, '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(color.toHSV().v * 100, '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(color.luma() * color.alpha * 100, '%'); - }, - luminance: function (color) { - var luminance = - (0.2126 * color.rgb[0] / 255) - + (0.7152 * color.rgb[1] / 255) - + (0.0722 * color.rgb[2] / 255); - - return new(tree.Dimension)(luminance * color.alpha * 100, '%'); - }, - saturate: function (color, amount) { - // filter: saturate(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if (color.luma() < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str.value); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - replace: function (string, pattern, replacement, flags) { - var result = string.value; - - result = result.replace(new RegExp(pattern.value, flags ? flags.value : ''), replacement.value); - return new(tree.Quoted)(string.quote || '', result, string.escaped); - }, - '%': function (string /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - result = string.value; - - for (var i = 0; i < args.length; i++) { - /*jshint loopfunc:true */ - result = result.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - result = result.replace(/%%/g, '%'); - return new(tree.Quoted)(string.quote || '', result, string.escaped); - }, - unit: function (val, unit) { - if(!(val instanceof tree.Dimension)) { - throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") }; - } - if (unit) { - if (unit instanceof tree.Keyword) { - unit = unit.value; - } else { - unit = unit.toCSS(); - } - } else { - unit = ""; - } - return new(tree.Dimension)(val.value, unit); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return _math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _minmax: function (isMin, args) { - args = Array.prototype.slice.call(args); - switch(args.length) { - case 0: throw { type: "Argument", message: "one or more arguments required" }; - } - var i, j, current, currentUnified, referenceUnified, unit, unitStatic, unitClone, - order = [], // elems only contains original argument values. - values = {}; // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - for (i = 0; i < args.length; i++) { - current = args[i]; - if (!(current instanceof tree.Dimension)) { - if(Array.isArray(args[i].value)) { - Array.prototype.push.apply(args, Array.prototype.slice.call(args[i].value)); - } - continue; - } - currentUnified = current.unit.toString() === "" && unitClone !== undefined ? new(tree.Dimension)(current.value, unitClone).unify() : current.unify(); - unit = currentUnified.unit.toString() === "" && unitStatic !== undefined ? unitStatic : currentUnified.unit.toString(); - unitStatic = unit !== "" && unitStatic === undefined || unit !== "" && order[0].unify().unit.toString() === "" ? unit : unitStatic; - unitClone = unit !== "" && unitClone === undefined ? current.unit.toString() : unitClone; - j = values[""] !== undefined && unit !== "" && unit === unitStatic ? values[""] : values[unit]; - if (j === undefined) { - if(unitStatic !== undefined && unit !== unitStatic) { - throw{ type: "Argument", message: "incompatible types" }; - } - values[unit] = order.length; - order.push(current); - continue; - } - referenceUnified = order[j].unit.toString() === "" && unitClone !== undefined ? new(tree.Dimension)(order[j].value, unitClone).unify() : order[j].unify(); - if ( isMin && currentUnified.value < referenceUnified.value || - !isMin && currentUnified.value > referenceUnified.value) { - order[j] = current; - } - } - if (order.length == 1) { - return order[0]; - } - args = order.map(function (a) { return a.toCSS(this.env); }).join(this.env.compress ? "," : ", "); - return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")"); - }, - min: function () { - return this._minmax(true, arguments); - }, - max: function () { - return this._minmax(false, arguments); - }, - "get-unit": function (n) { - return new(tree.Anonymous)(n.unit); - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - var colorCandidate = n.value, - returnColor; - returnColor = tree.Color.fromKeyword(colorCandidate); - if (returnColor) { - return returnColor; - } - if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) { - return new(tree.Color)(colorCandidate.slice(1)); - } - throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" }; - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - return Array.isArray(values.value) - ? values.value[index] : Array(values)[index]; - }, - length: function(values) { - var n = Array.isArray(values.value) ? values.value.length : 1; - return new tree.Dimension(n); - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require('./fs'), - path = require('path'), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) { mimetype += ';base64'; } - } - else { - useBase64 = /;base64$/.test(mimetype); - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "\"data:" + mimetype + ',' + buf + "\""; - return new(tree.URL)(new(tree.Anonymous)(uri)); - }, - - "svg-gradient": function(direction) { - - function throwArgumentDescriptor() { - throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" }; - } - - if (arguments.length < 3) { - throwArgumentDescriptor(); - } - var stops = Array.prototype.slice.call(arguments, 1), - gradientDirectionSvg, - gradientType = "linear", - rectangleDimension = 'x="0" y="0" width="1" height="1"', - useBase64 = true, - renderEnv = {compress: false}, - returner, - directionValue = direction.toCSS(renderEnv), - i, color, position, positionValue, alpha; - - switch (directionValue) { - case "to bottom": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - gradientType = "radial"; - gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" }; - } - returner = '' + - '' + - '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>'; - - for (i = 0; i < stops.length; i+= 1) { - if (stops[i].value) { - color = stops[i].value[0]; - position = stops[i].value[1]; - } else { - color = stops[i]; - position = undefined; - } - - if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) { - throwArgumentDescriptor(); - } - positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%"; - alpha = color.alpha; - returner += ''; - } - returner += '' + - ''; - - if (useBase64) { - try { - returner = require('./encoder').encodeBase64(returner); // TODO browser implementation - } catch(e) { - useBase64 = false; - } - } - - returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'"; - return new(tree.URL)(new(tree.Anonymous)(returner)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -// Math - -var mathFunctions = { - // name, unit - ceil: null, - floor: null, - sqrt: null, - abs: null, - tan: "", - sin: "", - cos: "", - atan: "rad", - asin: "rad", - acos: "rad" -}; - -function _math(fn, unit, n) { - if (!(n instanceof tree.Dimension)) { - throw { type: "Argument", message: "argument must be a number" }; - } - if (unit == null) { - unit = n.unit; - } else { - n = n.unify(); - } - return new(tree.Dimension)(fn(parseFloat(n.value)), unit); -} - -// ~ End of Math - -// Color Blending -// ref: http://www.w3.org/TR/compositing-1 - -function colorBlend(mode, color1, color2) { - var ab = color1.alpha, cb, // backdrop - as = color2.alpha, cs, // source - ar, cr, r = []; // result - - ar = as + ab * (1 - as); - for (var i = 0; i < 3; i++) { - cb = color1.rgb[i] / 255; - cs = color2.rgb[i] / 255; - cr = mode(cb, cs); - if (ar) { - cr = (as * cs + ab * (cb - - as * (cb + cs - cr))) / ar; - } - r[i] = cr * 255; - } - - return new(tree.Color)(r, ar); -} - -var colorBlendMode = { - multiply: function(cb, cs) { - return cb * cs; - }, - screen: function(cb, cs) { - return cb + cs - cb * cs; - }, - overlay: function(cb, cs) { - cb *= 2; - return (cb <= 1) - ? colorBlendMode.multiply(cb, cs) - : colorBlendMode.screen(cb - 1, cs); - }, - softlight: function(cb, cs) { - var d = 1, e = cb; - if (cs > 0.5) { - e = 1; - d = (cb > 0.25) ? Math.sqrt(cb) - : ((16 * cb - 12) * cb + 4) * cb; - } - return cb - (1 - 2 * cs) * e * (d - cb); - }, - hardlight: function(cb, cs) { - return colorBlendMode.overlay(cs, cb); - }, - difference: function(cb, cs) { - return Math.abs(cb - cs); - }, - exclusion: function(cb, cs) { - return cb + cs - 2 * cb * cs; - }, - - // non-w3c functions: - average: function(cb, cs) { - return (cb + cs) / 2; - }, - negation: function(cb, cs) { - return 1 - Math.abs(cb + cs - 1); - } -}; - -// ~ End of Color Blending - -tree.defaultFunc = { - eval: function () { - var v = this.value_, e = this.error_; - if (e) { - throw e; - } - if (v != null) { - return v ? tree.True : tree.False; - } - }, - value: function (v) { - this.value_ = v; - }, - error: function (e) { - this.error_ = e; - }, - reset: function () { - this.value_ = this.error_ = null; - } -}; - -function initFunctions() { - var f, tf = tree.functions; - - // math - for (f in mathFunctions) { - if (mathFunctions.hasOwnProperty(f)) { - tf[f] = _math.bind(null, Math[f], mathFunctions[f]); - } - } - - // color blending - for (f in colorBlendMode) { - if (colorBlendMode.hasOwnProperty(f)) { - tf[f] = colorBlend.bind(null, colorBlendMode[f]); - } - } - - // default - f = tree.defaultFunc; - tf["default"] = f.eval.bind(f); - -} initFunctions(); - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.fround = function(env, value) { - var p = env && env.numPrecision; - //add "epsilon" to ensure numbers like 1.000000005 (represented as 1.000000004999....) are properly rounded... - return (p == null) ? value : Number((value + 2e-16).toFixed(p)); -}; - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); - -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); - -(function (tree) { - -tree.debugInfo = function(env, ctx, lineSeperator) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:\/\\])/g, function (a) { - if (a == '\\') { - a = '\/'; - } - return '\\' + a; - }) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - r = fun.call(obj, obj[i]); - if (r) { return r; } - } - return null; -}; - -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(); }).join(', ') + ']'; - } else { - return obj.toCSS(); - } -}; - -tree.toCSS = function (env) { - var strs = []; - this.genCSS(env, { - add: function(chunk, fileInfo, index) { - strs.push(chunk); - }, - isEmpty: function () { - return strs.length === 0; - } - }); - return strs.join(''); -}; - -tree.outputRuleset = function (env, output, rules) { - var ruleCnt = rules.length, i; - env.tabLevel = (env.tabLevel | 0) + 1; - - // Compressed - if (env.compress) { - output.add('{'); - for (i = 0; i < ruleCnt; i++) { - rules[i].genCSS(env, output); - } - output.add('}'); - env.tabLevel--; - return; - } - - // Non-compressed - var tabSetStr = '\n' + Array(env.tabLevel).join(" "), tabRuleStr = tabSetStr + " "; - if (!ruleCnt) { - output.add(" {" + tabSetStr + '}'); - } else { - output.add(" {" + tabRuleStr); - rules[0].genCSS(env, output); - for (i = 1; i < ruleCnt; i++) { - output.add(tabRuleStr); - rules[i].genCSS(env, output); - } - output.add(tabSetStr + '}'); - } - - env.tabLevel--; -}; - -})(require('./tree')); - -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } - return this; - }, - genCSS: function (env, output) { - output.add("alpha(opacity="); - - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - - output.add(")"); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Anonymous = function (value, index, currentFileInfo, mapLines, rulesetLike) { - this.value = value; - this.index = index; - this.mapLines = mapLines; - this.currentFileInfo = currentFileInfo; - this.rulesetLike = (typeof rulesetLike === 'undefined')? false : rulesetLike; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - eval: function () { - return new tree.Anonymous(this.value, this.index, this.currentFileInfo, this.mapLines, this.rulesetLike); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - }, - isRulesetLike: function() { - return this.rulesetLike; - }, - genCSS: function (env, output) { - output.add(this.value, this.currentFileInfo, this.index, this.mapLines); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - }, - genCSS: function (env, output) { - output.add(this.key + '='); - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - if (this.args) { - this.args = visitor.visitArray(this.args); - } - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - return new tree.Call(this.name, args, this.index, this.currentFileInfo); - }, - - genCSS: function (env, output) { - output.add(this.name + "(", this.currentFileInfo, this.index); - - for(var i = 0; i < this.args.length; i++) { - this.args[i].genCSS(env, output); - if (i + 1 < this.args.length) { - output.add(", "); - } - } - - output.add(")"); - }, - - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; - -var transparentKeyword = "transparent"; - -tree.Color.prototype = { - type: "Color", - eval: function () { return this; }, - luma: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255; - - r = (r <= 0.03928) ? r / 12.92 : Math.pow(((r + 0.055) / 1.055), 2.4); - g = (g <= 0.03928) ? g / 12.92 : Math.pow(((g + 0.055) / 1.055), 2.4); - b = (b <= 0.03928) ? b / 12.92 : Math.pow(((b + 0.055) / 1.055), 2.4); - - return 0.2126 * r + 0.7152 * g + 0.0722 * b; - }, - - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress, - alpha = tree.fround(env, this.alpha); - - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - if (alpha < 1) { - if (alpha === 0 && this.isTransparentKeyword) { - return transparentKeyword; - } - return "rgba(" + this.rgb.map(function (c) { - return clamp(Math.round(c), 255); - }).concat(clamp(alpha, 1)) - .join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.toRGB(); - - if (compress) { - var splitcolor = color.split(''); - - // Convert color to short format - if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) { - color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5]; - } - } - - return color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var rgb = []; - var alpha = this.alpha * (1 - other.alpha) + other.alpha; - for (var c = 0; c < 3; c++) { - rgb[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(rgb, alpha); - }, - - toRGB: function () { - return toHex(this.rgb); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - return toHex([this.alpha * 255].concat(this.rgb)); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - -tree.Color.fromKeyword = function(keyword) { - keyword = keyword.toLowerCase(); - - if (tree.colors.hasOwnProperty(keyword)) { - // detect named color - return new(tree.Color)(tree.colors[keyword].slice(1)); - } - if (keyword === transparentKeyword) { - var transparent = new(tree.Color)([0, 0, 0], 0); - transparent.isTransparentKeyword = true; - return transparent; - } -}; - -function toHex(v) { - return '#' + v.map(function (c) { - c = clamp(Math.round(c), 255); - return (c < 16 ? '0' : '') + c.toString(16); - }).join(''); -} - -function clamp(v, max) { - return Math.min(Math.max(v, 0), max); -} - -})(require('../tree')); - -(function (tree) { - -tree.Comment = function (value, silent, index, currentFileInfo) { - this.value = value; - this.silent = !!silent; - this.currentFileInfo = currentFileInfo; -}; -tree.Comment.prototype = { - type: "Comment", - genCSS: function (env, output) { - if (this.debugInfo) { - output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index); - } - output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n - }, - toCSS: tree.toCSS, - isSilent: function(env) { - var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced), - isCompressed = env.compress && !this.value.match(/^\/\*!/); - return this.silent || isReference || isCompressed; - }, - eval: function () { return this; }, - markReferenced: function () { - this.isReferenced = true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<' || op === '<='; - case 0: return op === '=' || op === '>=' || op === '=<' || op === '<='; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.DetachedRuleset = function (ruleset, frames) { - this.ruleset = ruleset; - this.frames = frames; -}; -tree.DetachedRuleset.prototype = { - type: "DetachedRuleset", - accept: function (visitor) { - this.ruleset = visitor.visit(this.ruleset); - }, - eval: function (env) { - var frames = this.frames || env.frames.slice(0); - return new tree.DetachedRuleset(this.ruleset, frames); - }, - callEval: function (env) { - return this.ruleset.eval(this.frames ? new(tree.evalEnv)(env, this.frames.concat(env.frames)) : env); - } -}; -})(require('../tree')); - -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - genCSS: function (env, output) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = tree.fround(env, this.value), - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && this.unit.isLength()) { - output.add(strValue); - return; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - output.add(strValue); - this.unit.genCSS(env, output); - }, - toCSS: tree.toCSS, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - /*jshint noempty:false */ - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a, b, - aValue, bValue; - - if (this.unit.isEmpty() || other.unit.isEmpty()) { - a = this; - b = other; - } else { - a = this.unify(); - b = other.unify(); - if (a.unit.compare(b.unit) !== 0) { - return -1; - } - } - aValue = a.value; - bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'px', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, targetUnit, derivedConversions = {}, applyUnit; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - applyUnit = function (atomicUnit, denominator) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(applyUnit); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'px': 0.0254 / 96, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - genCSS: function (env, output) { - if (this.numerator.length >= 1) { - output.add(this.numerator[0]); - } else - if (this.denominator.length >= 1) { - output.add(this.denominator[0]); - } else - if ((!env || !env.strictUnits) && this.backupUnit) { - output.add(this.backupUnit); - } - }, - toCSS: tree.toCSS, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isLength: function () { - return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/)); - }, - - isEmpty: function () { - return this.numerator.length === 0 && this.denominator.length === 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length === 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, result = {}, mapUnit; - - mapUnit = function (atomicUnit) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }; - - for (var groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(mapUnit); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Directive = function (name, value, rules, index, currentFileInfo, debugInfo) { - this.name = name; - this.value = value; - if (rules) { - this.rules = rules; - this.rules.allowImports = true; - } - this.index = index; - this.currentFileInfo = currentFileInfo; - this.debugInfo = debugInfo; -}; - -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - var value = this.value, rules = this.rules; - if (rules) { - rules = visitor.visit(rules); - } - if (value) { - value = visitor.visit(value); - } - }, - isRulesetLike: function() { - return "@charset" !== this.name; - }, - genCSS: function (env, output) { - var value = this.value, rules = this.rules; - output.add(this.name, this.currentFileInfo, this.index); - if (value) { - output.add(' '); - value.genCSS(env, output); - } - if (rules) { - tree.outputRuleset(env, output, [rules]); - } else { - output.add(';'); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var value = this.value, rules = this.rules; - if (value) { - value = value.eval(env); - } - if (rules) { - rules = rules.eval(env); - rules.root = true; - } - return new(tree.Directive)(this.name, value, rules, - this.index, this.currentFileInfo, this.debugInfo); - }, - variable: function (name) { if (this.rules) return tree.Ruleset.prototype.variable.call(this.rules, name); }, - find: function () { if (this.rules) return tree.Ruleset.prototype.find.apply(this.rules, arguments); }, - rulesets: function () { if (this.rules) return tree.Ruleset.prototype.rulesets.apply(this.rules); }, - markReferenced: function () { - var i, rules; - this.isReferenced = true; - if (this.rules) { - rules = this.rules.rules; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Element = function (combinator, value, index, currentFileInfo) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - var value = this.value; - this.combinator = visitor.visit(this.combinator); - if (typeof value === "object") { - this.value = visitor.visit(value); - } - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index, - this.currentFileInfo); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env), this.currentFileInfo, this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value === '' && this.combinator.value.charAt(0) === '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - _outputMap: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : ' + ', - '~' : ' ~ ', - '>' : ' > ', - '|' : '|', - '^' : ' ^ ', - '^^' : ' ^^ ' - }, - _outputMapCompressed: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : '+', - '~' : '~', - '>' : '>', - '|' : '|', - '^' : '^', - '^^' : '^^' - }, - genCSS: function (env, output) { - output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - genCSS: function (env, output) { - for(var i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i + 1 < this.value.length) { - output.add(" "); - } - } - }, - toCSS: tree.toCSS, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - this.object_id = tree.Extend.next_id++; - this.parent_ids = [this.object_id]; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; -tree.Extend.next_id = 0; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i, - selectorElements; - - for(i = 0; i < selectors.length; i++) { - selectorElements = selectors[i].elements; - // duplicate the logic in genCSS function inside the selector node. - // future TODO - move both logics into the selector joiner visitor - if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") { - selectorElements[0].combinator.value = ' '; - } - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); - -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined || this.options.inline) { - this.css = !this.options.less || this.options.inline; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - this.path = visitor.visit(this.path); - if (!this.options.inline && this.root) { - this.root = visitor.visit(this.root); - } - }, - genCSS: function (env, output) { - if (this.css) { - output.add("@import ", this.currentFileInfo, this.index); - this.path.genCSS(env, output); - if (this.features) { - output.add(" "); - this.features.genCSS(env, output); - } - output.add(';'); - } - }, - toCSS: tree.toCSS, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - - if (!(path instanceof tree.URL)) { - if (rootpath) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath +pathValue; - } - } - path.value = env.normalizePath(path.value); - } - - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { - if (typeof this.skip === "function") { - this.skip = this.skip(); - } - if (this.skip) { - return []; - } - } - - if (this.options.inline) { - //todo needs to reference css file not import - var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true, true); - return this.features ? new(tree.Media)([contents], this.features.value) : [contents]; - } else if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" , - index: this.index }; - } - - var variables = env.frames[0].variables(); - for (var k in variables) { - if (variables.hasOwnProperty(k)) { - /*jshint loopfunc:true */ - context[k.slice(1)] = { - value: variables[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message.replace(/["]/g, "'") + "'" , - index: this.index }; - } - if (typeof(result) === 'number') { - return new(tree.Dimension)(result); - } else if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Keyword = function (value) { this.value = value; }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - genCSS: function (env, output) { - if (this.value === '%') { throw { type: "Syntax", message: "Invalid % without number" }; } - output.add(this.value); - }, - toCSS: tree.toCSS, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); - -(function (tree) { - -tree.Media = function (value, features, index, currentFileInfo) { - this.index = index; - this.currentFileInfo = currentFileInfo; - - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.rules = [new(tree.Ruleset)(selectors, value)]; - this.rules[0].allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - }, - genCSS: function (env, output) { - output.add('@media ', this.currentFileInfo, this.index); - this.features.genCSS(env, output); - tree.outputRuleset(env, output, this.rules); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)(null, [], this.index, this.currentFileInfo); - if(this.debugInfo) { - this.rules[0].debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.rules[0]); - media.rules = [this.rules[0].eval(env)]; - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env); - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', this.index, this.currentFileInfo), - sels = [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)]; - sels[0].mediaEmpty = true; - return sels; - }, - markReferenced: function () { - var i, rules = this.rules[0].rules; - this.rules[0].markReferenced(); - this.isReferenced = true; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - if (!selectors) - return; - this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])]; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = (args && args.length) ? args : null; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - if (this.selector) { - this.selector = visitor.visit(this.selector); - } - if (this.arguments) { - this.arguments = visitor.visitArray(this.arguments); - } - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule, - candidates = [], candidate, conditionResult = [], defaultFunc = tree.defaultFunc, - defaultResult, defNone = 0, defTrue = 1, defFalse = 2, count, originalRuleset; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - - // To make `default()` function independent of definition order we have two "subpasses" here. - // At first we evaluate each guard *twice* (with `default() == true` and `default() == false`), - // and build candidate list with corresponding flags. Then, when we know all possible matches, - // we make a final decision. - - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - - if (mixin.matchArgs(args, env)) { - candidate = {mixin: mixin, group: defNone}; - - if (mixin.matchCondition) { - for (f = 0; f < 2; f++) { - defaultFunc.value(f); - conditionResult[f] = mixin.matchCondition(args, env); - } - if (conditionResult[0] || conditionResult[1]) { - if (conditionResult[0] != conditionResult[1]) { - candidate.group = conditionResult[1] ? - defTrue : defFalse; - } - - candidates.push(candidate); - } - } - else { - candidates.push(candidate); - } - - match = true; - } - } - - defaultFunc.reset(); - - count = [0, 0, 0]; - for (m = 0; m < candidates.length; m++) { - count[candidates[m].group]++; - } - - if (count[defNone] > 0) { - defaultResult = defFalse; - } else { - defaultResult = defTrue; - if ((count[defTrue] + count[defFalse]) > 1) { - throw { type: 'Runtime', - message: 'Ambiguous use of `default()` found when matching for `' - + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - for (m = 0; m < candidates.length; m++) { - candidate = candidates[m].group; - if ((candidate === defNone) || (candidate === defaultResult)) { - try { - mixin = candidates[m].mixin; - if (!(mixin instanceof tree.mixin.Definition)) { - originalRuleset = mixin.originalRuleset || mixin; - mixin = new tree.mixin.Definition("", [], mixin.rules, null, false); - mixin.originalRuleset = originalRuleset; - } - Array.prototype.push.apply( - rules, mixin.evalCall(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - } - - if (match) { - if (!this.currentFileInfo || !this.currentFileInfo.reference) { - for (i = 0; i < rules.length; i++) { - rule = rules[i]; - if (rule.markReferenced) { - rule.markReferenced(); - } - } - } - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - }, - format: function (args) { - return this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")"; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic, frames) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1; } - else { return count; } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = frames; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - if (this.params && this.params.length) { - this.params = visitor.visitArray(this.params); - } - this.rules = visitor.visitArray(this.rules); - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - /*jshint boss:true */ - var frame = new(tree.Ruleset)(null, null), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex, argsLength = 0; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - argsLength = args.length; - - for(i = 0; i < argsLength; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.prependRule(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) { continue; } - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic) { - varargs = []; - for (j = argIndex; j < argsLength; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.prependRule(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + argsLength + ' for ' + this.arity + ')' }; - } - - frame.prependRule(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < argsLength; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env) { - return new tree.mixin.Definition(this.name, this.params, this.rules, this.condition, this.variadic, this.frames || env.frames.slice(0)); - }, - evalCall: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames ? this.frames.concat(env.frames) : env.frames, - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - rules, ruleset; - - frame.prependRule(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules); - ruleset.originalRuleset = this; - ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames))); - if (important) { - ruleset = this.parent.makeImportant.apply(ruleset); - } - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames ? this.frames.concat(env.frames) : env.frames), args, [])] // the parameter variables - .concat(this.frames) // the parent namespace/mixin frames - .concat(env.frames)))) { // the current environment frames - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (! this.variadic) { - if (argsLength < this.required) { return false; } - if (argsLength > this.params.length) { return false; } - } else { - if (argsLength < (this.required - 1)) { return false; } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('-'); - this.value.genCSS(env, output); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env); - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - a = a.toColor(); - } - if (b instanceof tree.Dimension && a instanceof tree.Color) { - b = b.toColor(); - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - genCSS: function (env, output) { - this.operands[0].genCSS(env, output); - if (this.isSpaced) { - output.add(" "); - } - output.add(this.op); - if (this.isSpaced) { - output.add(" "); - } - this.operands[1].genCSS(env, output); - }, - toCSS: tree.toCSS -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('('); - this.value.genCSS(env, output); - output.add(')'); - }, - toCSS: tree.toCSS, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - genCSS: function (env, output) { - if (!this.escaped) { - output.add(this.quote, this.currentFileInfo, this.index); - } - output.add(this.value); - if (!this.escaped) { - output.add(this.quote); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left, right; - - // when comparing quoted strings allow the quote to differ - if (x.type === "Quoted" && !this.escaped && !x.escaped) { - left = x.value; - right = this.value; - } else { - left = this.toCSS(); - right = x.toCSS(); - } - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value || value instanceof tree.Ruleset) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.merge = merge; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - this.variable = name.charAt && (name.charAt(0) === '@'); -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index); - try { - this.value.genCSS(env, output); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index); - }, - toCSS: tree.toCSS, - eval: function (env) { - var strictMathBypass = false, name = this.name, evaldValue; - if (typeof name !== "string") { - // expand 'primitive' name directly to get - // things faster (~10% for benchmark.less): - name = (name.length === 1) - && (name[0] instanceof tree.Keyword) - ? name[0].value : evalName(env, name); - } - if (name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - evaldValue = this.value.eval(env); - - if (!this.variable && evaldValue.type === "DetachedRuleset") { - throw { message: "Rulesets cannot be evaluated on a property.", - index: this.index, filename: this.currentFileInfo.filename }; - } - - return new(tree.Rule)(name, - evaldValue, - this.important, - this.merge, - this.index, this.currentFileInfo, this.inline); - } - catch(e) { - if (typeof e.index !== 'number') { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - } - throw e; - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.merge, - this.index, this.currentFileInfo, this.inline); - } -}; - -function evalName(env, name) { - var value = "", i, n = name.length, - output = {add: function (s) {value += s;}}; - for (i = 0; i < n; i++) { - name[i].eval(env).genCSS(env, output); - } - return value; -} - -})(require('../tree')); - -(function (tree) { - -tree.RulesetCall = function (variable) { - this.variable = variable; -}; -tree.RulesetCall.prototype = { - type: "RulesetCall", - accept: function (visitor) { - }, - eval: function (env) { - var detachedRuleset = new(tree.Variable)(this.variable).eval(env); - return detachedRuleset.callEval(env); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - if (this.paths) { - visitor.visitArray(this.paths, true); - } else if (this.selectors) { - this.selectors = visitor.visitArray(this.selectors); - } - if (this.rules && this.rules.length) { - this.rules = visitor.visitArray(this.rules); - } - }, - eval: function (env) { - var thisSelectors = this.selectors, selectors, - selCnt, selector, i, defaultFunc = tree.defaultFunc, hasOnePassingSelector = false; - - if (thisSelectors && (selCnt = thisSelectors.length)) { - selectors = []; - defaultFunc.error({ - type: "Syntax", - message: "it is currently only allowed in parametric mixin guards," - }); - for (i = 0; i < selCnt; i++) { - selector = thisSelectors[i].eval(env); - selectors.push(selector); - if (selector.evaldCondition) { - hasOnePassingSelector = true; - } - } - defaultFunc.reset(); - } else { - hasOnePassingSelector = true; - } - - var rules = this.rules ? this.rules.slice(0) : null, - ruleset = new(tree.Ruleset)(selectors, rules, this.strictImports), - rule, subRule; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - if (!hasOnePassingSelector) { - rules.length = 0; - } - - // push the current ruleset to the frames stack - var envFrames = env.frames; - envFrames.unshift(ruleset); - - // currrent selectors - var envSelectors = env.selectors; - if (!envSelectors) { - env.selectors = envSelectors = []; - } - envSelectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - var rsRules = ruleset.rules, rsRuleCnt = rsRules ? rsRules.length : 0; - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Definition || rsRules[i] instanceof tree.DetachedRuleset) { - rsRules[i] = rsRules[i].eval(env); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Call) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } else if (rsRules[i] instanceof tree.RulesetCall) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).rules.filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope at all - return false; - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (i = 0; i < rsRules.length; i++) { - rule = rsRules[i]; - if (! (rule instanceof tree.mixin.Definition || rule instanceof tree.DetachedRuleset)) { - rsRules[i] = rule = rule.eval ? rule.eval(env) : rule; - } - } - - // Evaluate everything else - for (i = 0; i < rsRules.length; i++) { - rule = rsRules[i]; - // for rulesets, check if it is a css guard and can be removed - if (rule instanceof tree.Ruleset && rule.selectors && rule.selectors.length === 1) { - // check if it can be folded in (e.g. & where) - if (rule.selectors[0].isJustParentSelector()) { - rsRules.splice(i--, 1); - - for(var j = 0; j < rule.rules.length; j++) { - subRule = rule.rules[j]; - if (!(subRule instanceof tree.Rule) || !subRule.variable) { - rsRules.splice(++i, 0, subRule); - } - } - } - } - } - - // Pop the stack - envFrames.shift(); - envSelectors.shift(); - - if (env.mediaBlocks) { - for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var rules = this.rules, i, importRules; - if (!rules) { return; } - - for (i = 0; i < rules.length; i++) { - if (rules[i] instanceof tree.Import) { - importRules = rules[i].eval(env); - if (importRules && importRules.length) { - rules.splice.apply(rules, [i, 1].concat(importRules)); - i+= importRules.length-1; - } else { - rules.splice(i, 1, importRules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - // lets you call a css selector with a guard - matchCondition: function (args, env) { - var lastSelector = this.selectors[this.selectors.length-1]; - if (!lastSelector.evaldCondition) { - return false; - } - if (lastSelector.condition && - !lastSelector.condition.eval( - new(tree.evalEnv)(env, - env.frames))) { - return false; - } - return true; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (!this._variables) { - this._variables = !this.rules ? {} : this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - return this._variables; - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (!this.rules) { return null; } - - var _Ruleset = tree.Ruleset, _MixinDefinition = tree.mixin.Definition, - filtRules = [], rules = this.rules, cnt = rules.length, - i, rule; - - for (i = 0; i < cnt; i++) { - rule = rules[i]; - if ((rule instanceof _Ruleset) || (rule instanceof _MixinDefinition)) { - filtRules.push(rule); - } - } - - return filtRules; - }, - prependRule: function (rule) { - var rules = this.rules; - if (rules) { rules.unshift(rule); } else { this.rules = [ rule ]; } - }, - find: function (selector, self) { - self = self || this; - var rules = [], match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key]; } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - match = selector.match(rule.selectors[j]); - if (match) { - if (selector.elements.length > match) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(match)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - this._lookups[key] = rules; - return rules; - }, - genCSS: function (env, output) { - var i, j, - ruleNodes = [], - rulesetNodes = [], - rulesetNodeCnt, - debugInfo, // Line number debugging - rule, - path; - - env.tabLevel = (env.tabLevel || 0); - - if (!this.root) { - env.tabLevel++; - } - - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "), - sep; - - function isRulesetLikeNode(rule, root) { - // if it has nested rules, then it should be treated like a ruleset - if (rule.rules) - return true; - - // medias and comments do not have nested rules, but should be treated like rulesets anyway - if ( (rule instanceof tree.Media) || (root && rule instanceof tree.Comment)) - return true; - - // some directives and anonumoust nodes are ruleset like, others are not - if ((rule instanceof tree.Directive) || (rule instanceof tree.Anonymous)) { - return rule.isRulesetLike(); - } - - //anything else is assumed to be a rule - return false; - } - - for (i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - if (isRulesetLikeNode(rule, this.root)) { - rulesetNodes.push(rule); - } else { - ruleNodes.push(rule); - } - } - - // If this is the root node, we don't render - // a selector, or {}. - if (!this.root) { - debugInfo = tree.debugInfo(env, this, tabSetStr); - - if (debugInfo) { - output.add(debugInfo); - output.add(tabSetStr); - } - - var paths = this.paths, pathCnt = paths.length, - pathSubCnt; - - sep = env.compress ? ',' : (',\n' + tabSetStr); - - for (i = 0; i < pathCnt; i++) { - path = paths[i]; - if (!(pathSubCnt = path.length)) { continue; } - if (i > 0) { output.add(sep); } - - env.firstSelector = true; - path[0].genCSS(env, output); - - env.firstSelector = false; - for (j = 1; j < pathSubCnt; j++) { - path[j].genCSS(env, output); - } - } - - output.add((env.compress ? '{' : ' {\n') + tabRuleStr); - } - - // Compile rules and rulesets - for (i = 0; i < ruleNodes.length; i++) { - rule = ruleNodes[i]; - - // @page{ directive ends up with root elements inside it, a mix of rules and rulesets - // In this instance we do not know whether it is the last property - if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) { - env.lastRule = true; - } - - if (rule.genCSS) { - rule.genCSS(env, output); - } else if (rule.value) { - output.add(rule.value.toString()); - } - - if (!env.lastRule) { - output.add(env.compress ? '' : ('\n' + tabRuleStr)); - } else { - env.lastRule = false; - } - } - - if (!this.root) { - output.add((env.compress ? '}' : '\n' + tabSetStr + '}')); - env.tabLevel--; - } - - sep = (env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr); - rulesetNodeCnt = rulesetNodes.length; - if (rulesetNodeCnt) { - if (ruleNodes.length && sep) { output.add(sep); } - rulesetNodes[0].genCSS(env, output); - for (i = 1; i < rulesetNodeCnt; i++) { - if (sep) { output.add(sep); } - rulesetNodes[i].genCSS(env, output); - } - } - - if (!output.isEmpty() && !env.compress && this.firstRoot) { - output.add('\n'); - } - }, - - toCSS: tree.toCSS, - - markReferenced: function () { - if (!this.selectors) { - return; - } - for (var s = 0; s < this.selectors.length; s++) { - this.selectors[s].markReferenced(); - } - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for (i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for (j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length === 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', el.index, el.currentFileInfo)); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for (k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = selector.createDerived([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for (i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length === 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for (i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); - -(function (tree) { - -tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) { - this.elements = elements; - this.extendList = extendList; - this.condition = condition; - this.currentFileInfo = currentFileInfo || {}; - this.isReferenced = isReferenced; - if (!condition) { - this.evaldCondition = true; - } -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - if (this.elements) { - this.elements = visitor.visitArray(this.elements); - } - if (this.extendList) { - this.extendList = visitor.visitArray(this.extendList); - } - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - createDerived: function(elements, extendList, evaldCondition) { - evaldCondition = (evaldCondition != null) ? evaldCondition : this.evaldCondition; - var newSelector = new(tree.Selector)(elements, extendList || this.extendList, null, this.index, this.currentFileInfo, this.isReferenced); - newSelector.evaldCondition = evaldCondition; - newSelector.mediaEmpty = this.mediaEmpty; - return newSelector; - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - olen, i; - - other.CacheElements(); - - olen = other._elements.length; - if (olen === 0 || len < olen) { - return 0; - } else { - for (i = 0; i < olen; i++) { - if (elements[i].value !== other._elements[i]) { - return 0; - } - } - } - - return olen; // return number of matched elements - }, - CacheElements: function(){ - var css = '', len, v, i; - - if( !this._elements ){ - - len = this.elements.length; - for(i = 0; i < len; i++){ - - v = this.elements[i]; - css += v.combinator.value; - - if( !v.value.value ){ - css += v.value; - continue; - } - - if( typeof v.value.value !== "string" ){ - css = ''; - break; - } - css += v.value.value; - } - - this._elements = css.match(/[,&#\.\w-]([\w-]|(\\.))*/g); - - if (this._elements) { - if (this._elements[0] === "&") { - this._elements.shift(); - } - - } else { - this._elements = []; - } - - } - }, - isJustParentSelector: function() { - return !this.mediaEmpty && - this.elements.length === 1 && - this.elements[0].value === '&' && - (this.elements[0].combinator.value === ' ' || this.elements[0].combinator.value === ''); - }, - eval: function (env) { - var evaldCondition = this.condition && this.condition.eval(env), - elements = this.elements, extendList = this.extendList; - - elements = elements && elements.map(function (e) { return e.eval(env); }); - extendList = extendList && extendList.map(function(extend) { return extend.eval(env); }); - - return this.createDerived(elements, extendList, evaldCondition); - }, - genCSS: function (env, output) { - var i, element; - if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") { - output.add(' ', this.currentFileInfo, this.index); - } - if (!this._css) { - //TODO caching? speed comparison? - for(i = 0; i < this.elements.length; i++) { - element = this.elements[i]; - element.genCSS(env, output); - } - } - }, - toCSS: tree.toCSS, - markReferenced: function () { - this.isReferenced = true; - }, - getIsReferenced: function() { - return !this.currentFileInfo.reference || this.isReferenced; - }, - getIsOutput: function() { - return this.evaldCondition; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - eval: function () { return this; } -}; - -})(require('../tree')); - -(function (tree) { - -tree.URL = function (val, currentFileInfo, isEvald) { - this.value = val; - this.currentFileInfo = currentFileInfo; - this.isEvald = isEvald; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add("url("); - this.value.genCSS(env, output); - output.add(")"); - }, - toCSS: tree.toCSS, - eval: function (ctx) { - var val = this.value.eval(ctx), - rootpath; - - if (!this.isEvald) { - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - val.value = ctx.normalizePath(val.value); - - // Add url args if enabled - if (ctx.urlArgs) { - if (!val.value.match(/^\s*data:/)) { - var delimiter = val.value.indexOf('?') === -1 ? '?' : '&'; - var urlArgs = delimiter + ctx.urlArgs; - if (val.value.indexOf('#') !== -1) { - val.value = val.value.replace('#', urlArgs + '#'); - } else { - val.value += urlArgs; - } - } - } - } - - return new(tree.URL)(val, this.currentFileInfo, true); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - genCSS: function (env, output) { - var i; - for(i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i+1 < this.value.length) { - output.add((env && env.compress) ? ',' : ', '); - } - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { - this.name = name; - this.index = index; - this.currentFileInfo = currentFileInfo || {}; -}; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, name = this.name; - - if (name.indexOf('@@') === 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - variable = tree.find(env.frames, function (frame) { - var v = frame.variable(name); - if (v) { - return v.value.eval(env); - } - }); - if (variable) { - this.evaluating = false; - return variable; - } else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); - -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // map - filename to contents of all the files - 'contentsIgnoredChars', // map - filename to lines at the begining of each file to ignore - 'relativeUrls', // option - whether to adjust URL's to be relative - 'rootpath', // option - rootpath to append to URL's - 'strictImports', // option - - 'insecure', // option - whether to allow imports from insecure ssl hosts - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true - 'mime', // browser only - mime type for sheet import - 'useFileCache', // browser only - whether to use the per file session cache - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' - absolute path to the entry file - // 'reference' - whether the file should not be output and only output parts that are referenced - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.contentsIgnoredChars) { this.contentsIgnoredChars = {}; } - if (!this.files) { this.files = {}; } - - if (typeof this.paths === "string") { this.paths = [this.paths]; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits', // whether units need to evaluate correctly - 'cleancss', // whether to compress with clean-css - 'sourceMap', // whether to output a source map - 'importMultiple', // whether we are currently importing multiple copies - 'urlArgs' // whether to add args into url tokens - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - tree.evalEnv.prototype.normalizePath = function( path ) { - var - segments = path.split("/").reverse(), - segment; - - path = []; - while (segments.length !== 0 ) { - segment = segments.pop(); - switch( segment ) { - case ".": - break; - case "..": - if ((path.length === 0) || (path[path.length - 1] === "..")) { - path.push( segment ); - } else { - path.pop(); - } - break; - default: - path.push( segment ); - break; - } - } - - return path.join("/"); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - }; - -})(require('./tree')); - -(function (tree) { - - var _visitArgs = { visitDeeper: true }, - _hasIndexed = false; - - function _noop(node) { - return node; - } - - function indexNodeTypes(parent, ticker) { - // add .typeIndex to tree node types for lookup table - var key, child; - for (key in parent) { - if (parent.hasOwnProperty(key)) { - child = parent[key]; - switch (typeof child) { - case "function": - // ignore bound functions directly on tree which do not have a prototype - // or aren't nodes - if (child.prototype && child.prototype.type) { - child.prototype.typeIndex = ticker++; - } - break; - case "object": - ticker = indexNodeTypes(child, ticker); - break; - } - } - } - return ticker; - } - - tree.visitor = function(implementation) { - this._implementation = implementation; - this._visitFnCache = []; - - if (!_hasIndexed) { - indexNodeTypes(tree, 1); - _hasIndexed = true; - } - }; - - tree.visitor.prototype = { - visit: function(node) { - if (!node) { - return node; - } - - var nodeTypeIndex = node.typeIndex; - if (!nodeTypeIndex) { - return node; - } - - var visitFnCache = this._visitFnCache, - impl = this._implementation, - aryIndx = nodeTypeIndex << 1, - outAryIndex = aryIndx | 1, - func = visitFnCache[aryIndx], - funcOut = visitFnCache[outAryIndex], - visitArgs = _visitArgs, - fnName; - - visitArgs.visitDeeper = true; - - if (!func) { - fnName = "visit" + node.type; - func = impl[fnName] || _noop; - funcOut = impl[fnName + "Out"] || _noop; - visitFnCache[aryIndx] = func; - visitFnCache[outAryIndex] = funcOut; - } - - if (func !== _noop) { - var newNode = func.call(impl, node, visitArgs); - if (impl.isReplacing) { - node = newNode; - } - } - - if (visitArgs.visitDeeper && node && node.accept) { - node.accept(this); - } - - if (funcOut != _noop) { - funcOut.call(impl, node); - } - - return node; - }, - visitArray: function(nodes, nonReplacing) { - if (!nodes) { - return nodes; - } - - var cnt = nodes.length, i; - - // Non-replacing - if (nonReplacing || !this._implementation.isReplacing) { - for (i = 0; i < cnt; i++) { - this.visit(nodes[i]); - } - return nodes; - } - - // Replacing - var out = []; - for (i = 0; i < cnt; i++) { - var evald = this.visit(nodes[i]); - if (!evald.splice) { - out.push(evald); - } else if (evald.length) { - this.flatten(evald, out); - } - } - return out; - }, - flatten: function(arr, out) { - if (!out) { - out = []; - } - - var cnt, i, item, - nestedCnt, j, nestedItem; - - for (i = 0, cnt = arr.length; i < cnt; i++) { - item = arr[i]; - if (!item.splice) { - out.push(item); - continue; - } - - for (j = 0, nestedCnt = item.length; j < nestedCnt; j++) { - nestedItem = item[j]; - if (!nestedItem.splice) { - out.push(nestedItem); - } else if (nestedItem.length) { - this.flatten(nestedItem, out); - } - } - } - - return out; - } - }; - -})(require('./tree')); -(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv, onceFileDetectionMap, recursionDetector) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - this.onceFileDetectionMap = onceFileDetectionMap || {}; - this.recursionDetector = {}; - if (recursionDetector) { - for(var fullFilename in recursionDetector) { - if (recursionDetector.hasOwnProperty(fullFilename)) { - this.recursionDetector[fullFilename] = true; - } - } - } - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode, - inlineCSS = importNode.options.inline; - - if (!importNode.css || inlineCSS) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - - if (importNode.options.multiple) { - env.importMultiple = true; - } - - this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, importedAtRoot, fullPath) { - if (e && !e.filename) { - e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; - } - - var duplicateImport = importedAtRoot || fullPath in importVisitor.recursionDetector; - if (!env.importMultiple) { - if (duplicateImport) { - importNode.skip = true; - } else { - importNode.skip = function() { - if (fullPath in importVisitor.onceFileDetectionMap) { - return true; - } - importVisitor.onceFileDetectionMap[fullPath] = true; - return false; - }; - } - } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - importNode.importedFilename = fullPath; - - if (!inlineCSS && (env.importMultiple || !duplicateImport)) { - importVisitor.recursionDetector[fullPath] = true; - new(tree.importVisitor)(importVisitor._importer, subFinish, env, importVisitor.onceFileDetectionMap, importVisitor.recursionDetector) - .run(root); - return; - } - } - - subFinish(); - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree')); - -(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1], - paths = [], selectors; - - this.contexts.push(paths); - - if (! rulesetNode.root) { - selectors = rulesetNode.selectors; - if (selectors) { - selectors = selectors.filter(function(selector) { return selector.getIsOutput(); }); - rulesetNode.selectors = selectors.length ? selectors : (selectors = null); - if (selectors) { rulesetNode.joinSelectors(paths, context, selectors); } - } - if (!selectors) { rulesetNode.rules = null; } - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree')); -(function (tree) { - tree.toCSSVisitor = function(env) { - this._visitor = new tree.visitor(this); - this._env = env; - }; - - tree.toCSSVisitor.prototype = { - isReplacing: true, - run: function (root) { - return this._visitor.visit(root); - }, - - visitRule: function (ruleNode, visitArgs) { - if (ruleNode.variable) { - return []; - } - return ruleNode; - }, - - visitMixinDefinition: function (mixinNode, visitArgs) { - // mixin definitions do not get eval'd - this means they keep state - // so we have to clear that state here so it isn't used if toCSS is called twice - mixinNode.frames = []; - return []; - }, - - visitExtend: function (extendNode, visitArgs) { - return []; - }, - - visitComment: function (commentNode, visitArgs) { - if (commentNode.isSilent(this._env)) { - return []; - } - return commentNode; - }, - - visitMedia: function(mediaNode, visitArgs) { - mediaNode.accept(this._visitor); - visitArgs.visitDeeper = false; - - if (!mediaNode.rules.length) { - return []; - } - return mediaNode; - }, - - visitDirective: function(directiveNode, visitArgs) { - if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) { - return []; - } - if (directiveNode.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (this.charset) { - if (directiveNode.debugInfo) { - var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n"); - comment.debugInfo = directiveNode.debugInfo; - return this._visitor.visit(comment); - } - return []; - } - this.charset = true; - } - if (directiveNode.rules && directiveNode.rules.rules) { - this._mergeRules(directiveNode.rules.rules); - } - return directiveNode; - }, - - checkPropertiesInRoot: function(rules) { - var ruleNode; - for(var i = 0; i < rules.length; i++) { - ruleNode = rules[i]; - if (ruleNode instanceof tree.Rule && !ruleNode.variable) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null}; - } - } - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var rule, rulesets = []; - if (rulesetNode.firstRoot) { - this.checkPropertiesInRoot(rulesetNode.rules); - } - if (! rulesetNode.root) { - if (rulesetNode.paths) { - rulesetNode.paths = rulesetNode.paths - .filter(function(p) { - var i; - if (p[0].elements[0].combinator.value === ' ') { - p[0].elements[0].combinator = new(tree.Combinator)(''); - } - for(i = 0; i < p.length; i++) { - if (p[i].getIsReferenced() && p[i].getIsOutput()) { - return true; - } - } - return false; - }); - } - - // Compile rules and rulesets - var nodeRules = rulesetNode.rules, nodeRuleCnt = nodeRules ? nodeRules.length : 0; - for (var i = 0; i < nodeRuleCnt; ) { - rule = nodeRules[i]; - if (rule && rule.rules) { - // visit because we are moving them out from being a child - rulesets.push(this._visitor.visit(rule)); - nodeRules.splice(i, 1); - nodeRuleCnt--; - continue; - } - i++; - } - // accept the visitor to remove rules and refactor itself - // then we can decide now whether we want it or not - if (nodeRuleCnt > 0) { - rulesetNode.accept(this._visitor); - } else { - rulesetNode.rules = null; - } - visitArgs.visitDeeper = false; - - nodeRules = rulesetNode.rules; - if (nodeRules) { - this._mergeRules(nodeRules); - nodeRules = rulesetNode.rules; - } - if (nodeRules) { - this._removeDuplicateRules(nodeRules); - nodeRules = rulesetNode.rules; - } - - // now decide whether we keep the ruleset - if (nodeRules && nodeRules.length > 0 && rulesetNode.paths.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } else { - rulesetNode.accept(this._visitor); - visitArgs.visitDeeper = false; - if (rulesetNode.firstRoot || (rulesetNode.rules && rulesetNode.rules.length > 0)) { - rulesets.splice(0, 0, rulesetNode); - } - } - if (rulesets.length === 1) { - return rulesets[0]; - } - return rulesets; - }, - - _removeDuplicateRules: function(rules) { - if (!rules) { return; } - - // remove duplicates - var ruleCache = {}, - ruleList, rule, i; - - for(i = rules.length - 1; i >= 0 ; i--) { - rule = rules[i]; - if (rule instanceof tree.Rule) { - if (!ruleCache[rule.name]) { - ruleCache[rule.name] = rule; - } else { - ruleList = ruleCache[rule.name]; - if (ruleList instanceof tree.Rule) { - ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)]; - } - var ruleCSS = rule.toCSS(this._env); - if (ruleList.indexOf(ruleCSS) !== -1) { - rules.splice(i, 1); - } else { - ruleList.push(ruleCSS); - } - } - } - } - }, - - _mergeRules: function (rules) { - if (!rules) { return; } - - var groups = {}, - parts, - rule, - key; - - for (var i = 0; i < rules.length; i++) { - rule = rules[i]; - - if ((rule instanceof tree.Rule) && rule.merge) { - key = [rule.name, - rule.important ? "!" : ""].join(","); - - if (!groups[key]) { - groups[key] = []; - } else { - rules.splice(i--, 1); - } - - groups[key].push(rule); - } - } - - Object.keys(groups).map(function (k) { - - function toExpression(values) { - return new (tree.Expression)(values.map(function (p) { - return p.value; - })); - } - - function toValue(values) { - return new (tree.Value)(values.map(function (p) { - return p; - })); - } - - parts = groups[k]; - - if (parts.length > 1) { - rule = parts[0]; - var spacedGroups = []; - var lastSpacedGroup = []; - parts.map(function (p) { - if (p.merge==="+") { - if (lastSpacedGroup.length > 0) { - spacedGroups.push(toExpression(lastSpacedGroup)); - } - lastSpacedGroup = []; - } - lastSpacedGroup.push(p); - }); - spacedGroups.push(toExpression(lastSpacedGroup)); - rule.value = toValue(spacedGroups); - } - }); - } - }; - -})(require('./tree')); -(function (tree) { - /*jshint loopfunc:true */ - - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - var rules = rulesetNode.rules, ruleCnt = rules ? rules.length : 0; - for(i = 0; i < ruleCnt; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rules[i]); - rulesetNode.extendOnEveryPath = true; - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - var paths = rulesetNode.paths; - for(i = 0; i < paths.length; i++) { - var selectorPath = paths[i], - selector = selectorPath[selectorPath.length - 1], - selExtendList = selector.extendList; - - extendList = selExtendList ? selExtendList.slice(0).concat(allSelectorsExtendList) - : allSelectorsExtendList; - - if (extendList) { - extendList = extendList.map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - } - - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if( extend.parent_ids.indexOf( targetExtend.object_id ) >= 0 ){ continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parent_ids = newExtend.parent_ids.concat(targetExtend.parent_ids, extend.parent_ids); - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (rulesetNode.extendOnEveryPath) { continue; } - var extendList = selectorPath[selectorPath.length-1].extendList; - if (extendList && extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator === '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - elementValue1 = elementValue1.value; - elementValue2 = elementValue2.value; - if (elementValue1 instanceof tree.Selector) { - if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) { - return false; - } - for(var i = 0; i currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - newElements = selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)); - - if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) { - path[path.length - 1].elements = - path[path.length - 1].elements.concat(newElements); - } else { - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - newElements - )); - } - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.sourceMapOutput = function (options) { - this._css = []; - this._rootNode = options.rootNode; - this._writeSourceMap = options.writeSourceMap; - this._contentsMap = options.contentsMap; - this._contentsIgnoredCharsMap = options.contentsIgnoredCharsMap; - this._sourceMapFilename = options.sourceMapFilename; - this._outputFilename = options.outputFilename; - this._sourceMapURL = options.sourceMapURL; - if (options.sourceMapBasepath) { - this._sourceMapBasepath = options.sourceMapBasepath.replace(/\\/g, '/'); - } - this._sourceMapRootpath = options.sourceMapRootpath; - this._outputSourceFiles = options.outputSourceFiles; - this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator; - - if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') { - this._sourceMapRootpath += '/'; - } - - this._lineNumber = 0; - this._column = 0; - }; - - tree.sourceMapOutput.prototype.normalizeFilename = function(filename) { - filename = filename.replace(/\\/g, '/'); - - if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) { - filename = filename.substring(this._sourceMapBasepath.length); - if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') { - filename = filename.substring(1); - } - } - return (this._sourceMapRootpath || "") + filename; - }; - - tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) { - - //ignore adding empty strings - if (!chunk) { - return; - } - - var lines, - sourceLines, - columns, - sourceColumns, - i; - - if (fileInfo) { - var inputSource = this._contentsMap[fileInfo.filename]; - - // remove vars/banner added to the top of the file - if (this._contentsIgnoredCharsMap[fileInfo.filename]) { - // adjust the index - index -= this._contentsIgnoredCharsMap[fileInfo.filename]; - if (index < 0) { index = 0; } - // adjust the source - inputSource = inputSource.slice(this._contentsIgnoredCharsMap[fileInfo.filename]); - } - inputSource = inputSource.substring(0, index); - sourceLines = inputSource.split("\n"); - sourceColumns = sourceLines[sourceLines.length-1]; - } - - lines = chunk.split("\n"); - columns = lines[lines.length-1]; - - if (fileInfo) { - if (!mapLines) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column}, - original: { line: sourceLines.length, column: sourceColumns.length}, - source: this.normalizeFilename(fileInfo.filename)}); - } else { - for(i = 0; i < lines.length; i++) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0}, - original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0}, - source: this.normalizeFilename(fileInfo.filename)}); - } - } - } - - if (lines.length === 1) { - this._column += columns.length; - } else { - this._lineNumber += lines.length - 1; - this._column = columns.length; - } - - this._css.push(chunk); - }; - - tree.sourceMapOutput.prototype.isEmpty = function() { - return this._css.length === 0; - }; - - tree.sourceMapOutput.prototype.toCSS = function(env) { - this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null }); - - if (this._outputSourceFiles) { - for(var filename in this._contentsMap) { - if (this._contentsMap.hasOwnProperty(filename)) - { - var source = this._contentsMap[filename]; - if (this._contentsIgnoredCharsMap[filename]) { - source = source.slice(this._contentsIgnoredCharsMap[filename]); - } - this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), source); - } - } - } - - this._rootNode.genCSS(env, this); - - if (this._css.length > 0) { - var sourceMapURL, - sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); - - if (this._sourceMapURL) { - sourceMapURL = this._sourceMapURL; - } else if (this._sourceMapFilename) { - sourceMapURL = this.normalizeFilename(this._sourceMapFilename); - } - - if (this._writeSourceMap) { - this._writeSourceMap(sourceMapContent); - } else { - sourceMapURL = "data:application/json;base64," + require('./encoder.js').encodeBase64(sourceMapContent); - } - - if (sourceMapURL) { - this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */"); - } - } - - return this._css.join(''); - }; - -})(require('./tree')); - -// -// browser.js - client-side engine -// -/*global less, window, document, XMLHttpRequest, location */ - -var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol); - -less.env = less.env || (location.hostname == '127.0.0.1' || - location.hostname == '0.0.0.0' || - location.hostname == 'localhost' || - (location.port && - location.port.length > 0) || - isFileProtocol ? 'development' - : 'production'); - -var logLevel = { - debug: 3, - info: 2, - errors: 1, - none: 0 -}; - -// The amount of logging in the javascript console. -// 3 - Debug, information and errors -// 2 - Information and errors -// 1 - Errors -// 0 - None -// Defaults to 2 -less.logLevel = typeof(less.logLevel) != 'undefined' ? less.logLevel : (less.env === 'development' ? logLevel.debug : logLevel.errors); - -// Load styles asynchronously (default: false) -// -// This is set to `false` by default, so that the body -// doesn't start loading before the stylesheets are parsed. -// Setting this to `true` can result in flickering. -// -less.async = less.async || false; -less.fileAsync = less.fileAsync || false; - -// Interval between watch polls -less.poll = less.poll || (isFileProtocol ? 1000 : 1500); - -//Setup user functions -if (less.functions) { - for(var func in less.functions) { - if (less.functions.hasOwnProperty(func)) { - less.tree.functions[func] = less.functions[func]; - } - } -} - -var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash); -if (dumpLineNumbers) { - less.dumpLineNumbers = dumpLineNumbers[1]; -} - -var typePattern = /^text\/(x-)?less$/; -var cache = null; -var fileCache = {}; - -function log(str, level) { - if (typeof(console) !== 'undefined' && less.logLevel >= level) { - console.log('less: ' + str); - } -} - -function extractId(href) { - return href.replace(/^[a-z-]+:\/+?[^\/]+/, '' ) // Remove protocol & domain - .replace(/^\//, '' ) // Remove root / - .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension - .replace(/[^\.\w-]+/g, '-') // Replace illegal characters - .replace(/\./g, ':'); // Replace dots with colons(for valid id) -} - -function errorConsole(e, rootHref) { - var template = '{line} {content}'; - var filename = e.filename || rootHref; - var errors = []; - var content = (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - " in " + filename + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n' + - errors.join('\n'); - } else if (e.stack) { - content += e.stack; - } - log(content, logLevel.errors); -} - -function createCSS(styles, sheet, lastModified) { - // Strip the query-string - var href = sheet.href || ''; - - // If there is no title set, use the filename, minus the extension - var id = 'less:' + (sheet.title || extractId(href)); - - // If this has already been inserted into the DOM, we may need to replace it - var oldCss = document.getElementById(id); - var keepOldCss = false; - - // Create a new stylesheet node for insertion or (if necessary) replacement - var css = document.createElement('style'); - css.setAttribute('type', 'text/css'); - if (sheet.media) { - css.setAttribute('media', sheet.media); - } - css.id = id; - - if (!css.styleSheet) { - css.appendChild(document.createTextNode(styles)); - - // If new contents match contents of oldCss, don't replace oldCss - keepOldCss = (oldCss !== null && oldCss.childNodes.length > 0 && css.childNodes.length > 0 && - oldCss.firstChild.nodeValue === css.firstChild.nodeValue); - } - - var head = document.getElementsByTagName('head')[0]; - - // If there is no oldCss, just append; otherwise, only append if we need - // to replace oldCss with an updated stylesheet - if (oldCss === null || keepOldCss === false) { - var nextEl = sheet && sheet.nextSibling || null; - if (nextEl) { - nextEl.parentNode.insertBefore(css, nextEl); - } else { - head.appendChild(css); - } - } - if (oldCss && keepOldCss === false) { - oldCss.parentNode.removeChild(oldCss); - } - - // For IE. - // This needs to happen *after* the style element is added to the DOM, otherwise IE 7 and 8 may crash. - // See http://social.msdn.microsoft.com/Forums/en-US/7e081b65-878a-4c22-8e68-c10d39c2ed32/internet-explorer-crashes-appending-style-element-to-head - if (css.styleSheet) { - try { - css.styleSheet.cssText = styles; - } catch (e) { - throw new(Error)("Couldn't reassign styleSheet.cssText."); - } - } - - // Don't update the local store if the file wasn't modified - if (lastModified && cache) { - log('saving ' + href + ' to cache.', logLevel.info); - try { - cache.setItem(href, styles); - cache.setItem(href + ':timestamp', lastModified); - } catch(e) { - //TODO - could do with adding more robust error handling - log('failed to save', logLevel.errors); - } - } -} - -function postProcessCSS(styles) { - if (less.postProcessor && typeof less.postProcessor === 'function') { - styles = less.postProcessor.call(styles, styles) || styles; - } - return styles; -} - -function errorHTML(e, rootHref) { - var id = 'less-error-message:' + extractId(rootHref || ""); - var template = '
  • {content}
    • '; - var elem = document.createElement('div'), timer, content, errors = []; - var filename = e.filename || rootHref; - var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1]; - - elem.id = id; - elem.className = "less-error-message"; - - content = '

    ' + (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') + - '

    ' + '

    in ' + filenameNoPath + " "; - - var errorline = function (e, i, classname) { - if (e.extract[i] !== undefined) { - errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1)) - .replace(/\{class\}/, classname) - .replace(/\{content\}/, e.extract[i])); - } - }; - - if (e.extract) { - errorline(e, 0, ''); - errorline(e, 1, 'line'); - errorline(e, 2, ''); - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + - '
      ' + errors.join('') + '
    '; - } else if (e.stack) { - content += '
    ' + e.stack.split('\n').slice(1).join('
    '); - } - elem.innerHTML = content; - - // CSS for error messages - createCSS([ - '.less-error-message ul, .less-error-message li {', - 'list-style-type: none;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'margin: 0;', - '}', - '.less-error-message label {', - 'font-size: 12px;', - 'margin-right: 15px;', - 'padding: 4px 0;', - 'color: #cc7777;', - '}', - '.less-error-message pre {', - 'color: #dd6666;', - 'padding: 4px 0;', - 'margin: 0;', - 'display: inline-block;', - '}', - '.less-error-message pre.line {', - 'color: #ff0000;', - '}', - '.less-error-message h3 {', - 'font-size: 20px;', - 'font-weight: bold;', - 'padding: 15px 0 5px 0;', - 'margin: 0;', - '}', - '.less-error-message a {', - 'color: #10a', - '}', - '.less-error-message .error {', - 'color: red;', - 'font-weight: bold;', - 'padding-bottom: 2px;', - 'border-bottom: 1px dashed red;', - '}' - ].join('\n'), { title: 'error-message' }); - - elem.style.cssText = [ - "font-family: Arial, sans-serif", - "border: 1px solid #e00", - "background-color: #eee", - "border-radius: 5px", - "-webkit-border-radius: 5px", - "-moz-border-radius: 5px", - "color: #e00", - "padding: 15px", - "margin-bottom: 15px" - ].join(';'); - - if (less.env == 'development') { - timer = setInterval(function () { - if (document.body) { - if (document.getElementById(id)) { - document.body.replaceChild(elem, document.getElementById(id)); - } else { - document.body.insertBefore(elem, document.body.firstChild); - } - clearInterval(timer); - } - }, 10); - } -} - -function error(e, rootHref) { - if (!less.errorReporting || less.errorReporting === "html") { - errorHTML(e, rootHref); - } else if (less.errorReporting === "console") { - errorConsole(e, rootHref); - } else if (typeof less.errorReporting === 'function') { - less.errorReporting("add", e, rootHref); - } -} - -function removeErrorHTML(path) { - var node = document.getElementById('less-error-message:' + extractId(path)); - if (node) { - node.parentNode.removeChild(node); - } -} - -function removeErrorConsole(path) { - //no action -} - -function removeError(path) { - if (!less.errorReporting || less.errorReporting === "html") { - removeErrorHTML(path); - } else if (less.errorReporting === "console") { - removeErrorConsole(path); 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- for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree; - -if (typeof(window) === 'undefined') { - if (typeof(exports) === 'undefined') { - // Rhino - less = {}; - tree = less.tree = {}; - } else { - // Node.js - less = exports, - tree = require('less/tree'); - } -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - mime: env && env.mime, // MIME type of .less files - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (root) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - that.files[path] = root; // Store the root - - callback(root); - - if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, c, index, endIndex, k, mem; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - mem = i += length; - endIndex = i + chunks[j].length - length; - - while (i < endIndex) { - c = input.charCodeAt(i); - if (! (c === 32 || c === 10 || c === 9)) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - chunks = []; - input = str.replace(/\r\n/g, '\n'); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /[^"'`\{\}\/\(\)]+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - level = 0, - match, - chunk = chunks[0], - inParam, - inString; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = i; - - if (!inString && !inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - if (c === '{' && !inString && !inParam) { level ++; - chunk.push(c); - } else if (c === '}' && !inString && !inParam) { level --; - chunk.push(c); - chunks[++j] = chunk = []; - } else if (c === '(' && !inString && !inParam) { - chunk.push(c); - inParam = true; - } else if (c === ')' && !inString && inParam) { - chunk.push(c); - inParam = false; - } else { - if (c === '"' || c === "'" || c === '`') { - if (! inString) { - inString = c; - } else { - inString = inString === c ? false : inString; - } - } - chunk.push(c); - } - } - if (level > 0) { - throw { - type: 'Syntax', - message: "Missing closing `}`", - filename: env.filename - }; - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = []; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false }); - } catch (e) { - lines = input.split('\n'); - line = getLine(e.index); - - for (var n = e.index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - throw { - type: e.type, - message: e.message, - filename: env.filename, - index: e.index, - line: typeof(line) === 'number' ? line + 1 : null, - callLine: e.call && (getLine(e.call) + 1), - callExtract: lines[getLine(e.call)], - stack: e.stack, - column: column, - extract: [ - lines[line - 1], - lines[line], - lines[line + 1] - ] - }; - } - if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - - function getLine(index) { - return index ? (input.slice(0, index).match(/\n/g) || "").length : null; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - name: "ParseError", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function () { callback(error, root) }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - if (k = $(/^[A-Za-z-]+/)) { return new(tree.Keyword)(k) } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, args, index = i; - - if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return; - - name = name[1].toLowerCase(); - - if (name === 'url') { return null } - else { i += name.length } - - if (name === 'alpha') { return $(this.alpha) } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; - if (! $(')')) throw new(Error)("missing closing ) for url()"); - - return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - dataURI: function () { - var obj; - - if ($(/^data:/)) { - obj = {}; - obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; - obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; - obj.base64 = $(/^;\s*base64/) || ''; - obj.data = $(/^,\s*[^)]+/); - - if (obj.data) { return obj } - } - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i); - - if (s !== '.' && s !== '#') { return } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(c, e)); - c = $('>'); - } - $('(') && (args = $(this.entities.arguments)) && $(')'); - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index); - } - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value; - - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { - name = match[1]; - - while (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - if (value = $(this.expression)) { - params.push({ name: param.name, value: value }); - } else { - throw new(Error)("Expected value"); - } - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - if (! $(',')) { break } - } - if (! $(')')) throw new(Error)("Expected )"); - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - if (! $(')')) throw new(Error)("missing closing ) for alpha()"); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c; - - c = $(this.combinator); - e = $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || $('*') || $(this.attribute) || $(/^\([^)@]+\)/); - - if (e) { return new(tree.Element)(c, e) } - - if (c.value && c.value[0] === '&') { - return new(tree.Element)(c, null); - } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~') { - i++; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(c); - } else if (c === '&') { - match = '&'; - i++; - if(input.charAt(i) === ' ') { - match = '& '; - } - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(match); - } else if (c === ':' && input.charAt(i + 1) === ':') { - i += 2; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)('::'); - } else if (input.charAt(i - 1) === ' ') { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match; - save(); - - if (match = /^([.#: \w-]+)[\s\n]*\{/.exec(chunks[j])) { - i += match[0].length - 1; - selectors = [new(tree.Selector)([new(tree.Element)(null, match[1])])]; - } else { - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - } - - if (selectors.length > 0 && (rules = $(this.block))) { - return new(tree.Ruleset)(selectors, rules); - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path; - if ($(/^@import\s+/) && - (path = $(this.entities.quoted) || $(this.entities.url)) && - $(';')) { - return new(tree.Import)(path, imports); - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, types; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import'])) { - return value; - } else if (name = $(/^@media|@page|@-[-a-z]+/)) { - types = ($(/^[^{]+/) || '').trim(); - if (rules = $(this.block)) { - return new(tree.Directive)(name + " " + types, rules); - } - } else if (name = $(/^@[-a-z]+/)) { - if (name === '@font-face') { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while ((op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (typeof(window) !== 'undefined' /* browser */ || typeof(exports) === 'undefined' /* rhino */) { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (path.charAt(0) !== '/' && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math.round(number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math.round(n); - } else { - throw { - error: "RuntimeError", - message: "math functions take numbers as parameters" - }; - } - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('less/tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index) { - this.name = name; - this.args = args; - this.index = index; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { message: "error evaluating function `" + this.name + "`", - index: this.index }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('less/tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else if (rgb.length == 8) { - this.alpha = parseInt(rgb.substring(0,2), 16) / 255.0; - this.rgb = rgb.substr(2).match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - } -}; - - -})(require('less/tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - env.frames.unshift(this); - this.ruleset = this.ruleset && this.ruleset.eval(env); - env.frames.shift(); - return this; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Element = function (combinator, value) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - this.value = value ? value.trim() : ""; -}; -tree.Element.prototype.toCSS = function (env) { - return this.combinator.toCSS(env || {}) + this.value; -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else if (value === '& ') { - this.value = '& '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - '&' : '', - '& ' : ' ', - ':' : ' :', - '::': '::', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('less/tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(' '); - } -}; - -})(require('less/tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports) { - var that = this; - - this._path = path; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (root) { - if (! root) { - throw new(Error)("Error parsing " + that.path); - } - that.root = root; - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function () { - if (this.css) { - return "@import " + this._path.toCSS() + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return ruleset.rules; - } - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('less/tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value } -}; - -})(require('less/tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, args, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(args, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments).rules); - match = true; - } catch (e) { - throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; - } - } - } - if (match) { - return rules; - } else { - throw { message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index }; - } - } - } - throw { message: this.selector.toCSS().trim() + " is undefined", - index: this.index }; - } -}; - -tree.mixin.Definition = function (name, params, rules) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - eval: function (env, args) { - var frame = new(tree.Ruleset)(null, []), context, _arguments = []; - - for (var i = 0, val; i < this.params.length; i++) { - if (this.params[i].name) { - if (val = (args && args[i]) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); - } else { - throw { message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push(args[i] || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (argsLength < this.required) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return v.value || v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + ";"; - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); - - ruleset.root = this.root; - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > 1) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - rule; - - if (! this.root) { - if (context.length === 0) { - paths = this.selectors.map(function (s) { return [s] }); - } else { - this.joinSelectors( paths, context, this.selectors ); - } - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); - css.push(selector, - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function( paths, context, selectors ) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function( paths, context, selector ) { - var before = [], after = [], beforeElements = [], afterElements = [], hasParentSelector = false, el; - - for (var i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.combinator.value[0] === '&') { - hasParentSelector = true; - } - if(!hasParentSelector) { - beforeElements.push(el); - } else { - afterElements.push(el); - } - } - - if(!hasParentSelector) { - afterElements = beforeElements; - beforeElements = []; - } - - if(beforeElements.length > 0) { - before.push(new (tree.Selector)(beforeElements)); - } - if(afterElements.length > 0) { - after.push(new (tree.Selector)(afterElements)); - } - - for (var c = 0; c < context.length; c++) { - paths.push(before.concat(context[c]).concat(after)); - } - } -}; -})(require('less/tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; - if (this.elements[0].combinator.value === "") { - this.elements[0].combinator.value = ' '; - } -}; -tree.Selector.prototype.match = function (other) { - if (this.elements[0].value === other.elements[0].value) { - return true; - } else { - return false; - } -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - return this._css = this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); -}; - -})(require('less/tree')); -(function (tree) { - -tree.URL = function (val, paths) { - if (val.data) { - this.attrs = val; - } else { - // Add the base path if the URL is relative and we are in the browser - if (!/^(?:https?:\/|file:\/|data:\/)?\//.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') { - val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - this.value = val; - this.paths = paths; - } -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data - : this.value.toCSS()) + ")"; - }, - eval: function (ctx) { - return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('less/tree')); -(function (tree) { - -tree.Variable = function (name, index) { this.name = name, this.index = index }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { message: "variable " + name + " is undefined", - index: this.index }; - } - } -}; - -})(require('less/tree')); -require('less/tree').find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -require('less/tree').jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; -var name; - -function loadStyleSheet(sheet, callback, reload, remaining) { - var sheetName = name.slice(0, name.lastIndexOf('/') + 1) + sheet.href; - var input = readFile(sheetName); - var parser = new less.Parser(); - parser.parse(input, function (e, root) { - if (e) { - print("Error: " + e); - quit(1); - } - callback(root, sheet, { local: false, lastModified: 0, remaining: remaining }); - }); - - // callback({}, sheet, { local: true, remaining: remaining }); -} - -function writeFile(filename, content) { - var fstream = new java.io.FileWriter(filename); - var out = new java.io.BufferedWriter(fstream); - out.write(content); - out.close(); -} - -// Command line integration via Rhino -(function (args) { - name = args[0]; - var output = args[1]; - - if (!name) { - print('No files present in the fileset; Check your pattern match in build.xml'); - quit(1); - } - path = name.split("/");path.pop();path=path.join("/") - - var input = readFile(name); - - if (!input) { - print('lesscss: couldn\'t open file ' + name); - quit(1); - } - - var result; - var parser = new less.Parser(); - parser.parse(input, function (e, root) { - if (e) { - quit(1); - } else { - result = root.toCSS(); - if (output) { - writeFile(output, result); - print("Written to " + output); - } else { - print(result); - } - quit(0); - } - }); - print("done"); -}(arguments)); diff --git a/awx/ui/static/lib/less/dist/less-rhino-1.1.5.js b/awx/ui/static/lib/less/dist/less-rhino-1.1.5.js deleted file mode 100644 index e755f63102..0000000000 --- a/awx/ui/static/lib/less/dist/less-rhino-1.1.5.js +++ /dev/null @@ -1,2481 +0,0 @@ -// -// Stub out `require` in rhino -// -function require(arg) { - return less[arg.split('/')[1]]; -}; - - -// ecma-5.js -// -// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License -// -- tlrobinson Tom Robinson -// dantman Daniel Friesen - -// -// Array -// -if (!Array.isArray) { - Array.isArray = function(obj) { - return Object.prototype.toString.call(obj) === "[object Array]" || - (obj instanceof Array); - }; -} -if (!Array.prototype.forEach) { - Array.prototype.forEach = function(block, thisObject) { - var len = this.length >>> 0; - for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - less = {}; - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'rhino'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - mime: env && env.mime, // MIME type of .less files - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (root) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - that.files[path] = root; // Store the root - - callback(root); - - if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, c, index, endIndex, k, mem; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - mem = i += length; - endIndex = i + chunks[j].length - length; - - while (i < endIndex) { - c = input.charCodeAt(i); - if (! (c === 32 || c === 10 || c === 9)) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - chunks = []; - input = str.replace(/\r\n/g, '\n'); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /[^"'`\{\}\/\(\)]+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - level = 0, - match, - chunk = chunks[0], - inParam, - inString; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = i; - - if (!inString && !inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - if (c === '{' && !inString && !inParam) { level ++; - chunk.push(c); - } else if (c === '}' && !inString && !inParam) { level --; - chunk.push(c); - chunks[++j] = chunk = []; - } else if (c === '(' && !inString && !inParam) { - chunk.push(c); - inParam = true; - } else if (c === ')' && !inString && inParam) { - chunk.push(c); - inParam = false; - } else { - if (c === '"' || c === "'" || c === '`') { - if (! inString) { - inString = c; - } else { - inString = inString === c ? false : inString; - } - } - chunk.push(c); - } - } - if (level > 0) { - throw { - type: 'Syntax', - message: "Missing closing `}`", - filename: env.filename - }; - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = []; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false }); - } catch (e) { - lines = input.split('\n'); - line = getLine(e.index); - - for (var n = e.index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - throw { - type: e.type, - message: e.message, - filename: env.filename, - index: e.index, - line: typeof(line) === 'number' ? line + 1 : null, - callLine: e.call && (getLine(e.call) + 1), - callExtract: lines[getLine(e.call)], - stack: e.stack, - column: column, - extract: [ - lines[line - 1], - lines[line], - lines[line + 1] - ] - }; - } - if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - - function getLine(index) { - return index ? (input.slice(0, index).match(/\n/g) || "").length : null; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - name: "ParseError", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function () { callback(error, root) }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { return new(tree.Keyword)(k) } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, args, index = i; - - if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return; - - name = name[1].toLowerCase(); - - if (name === 'url') { return null } - else { i += name.length } - - if (name === 'alpha') { return $(this.alpha) } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; - if (! $(')')) throw new(Error)("missing closing ) for url()"); - - return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - dataURI: function () { - var obj; - - if ($(/^data:/)) { - obj = {}; - obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; - obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; - obj.base64 = $(/^;\s*base64/) || ''; - obj.data = $(/^,\s*[^)]+/); - - if (obj.data) { return obj } - } - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i); - - if (s !== '.' && s !== '#') { return } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - $('(') && (args = $(this.entities.arguments)) && $(')'); - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index); - } - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value; - - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { - name = match[1]; - - while (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - if (value = $(this.expression)) { - params.push({ name: param.name, value: value }); - } else { - throw new(Error)("Expected value"); - } - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - if (! $(',')) { break } - } - if (! $(')')) throw new(Error)("Expected )"); - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - if (! $(')')) throw new(Error)("missing closing ) for alpha()"); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c; - - c = $(this.combinator); - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || - $('*') || $(this.attribute) || $(/^\([^)@]+\)/); - - if (e) { return new(tree.Element)(c, e, i) } - - if (c.value && c.value.charAt(0) === '&') { - return new(tree.Element)(c, null, i); - } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~') { - i++; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(c); - } else if (c === '&') { - match = '&'; - i++; - if(input.charAt(i) === ' ') { - match = '& '; - } - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)(match); - } else if (c === ':' && input.charAt(i + 1) === ':') { - i += 2; - while (input.charAt(i) === ' ') { i++ } - return new(tree.Combinator)('::'); - } else if (input.charAt(i - 1) === ' ') { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match; - save(); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - return new(tree.Ruleset)(selectors, rules); - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path; - if ($(/^@import\s+/) && - (path = $(this.entities.quoted) || $(this.entities.url)) && - $(';')) { - return new(tree.Import)(path, imports); - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, types; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import'])) { - return value; - } else if (name = $(/^@media|@page/) || $(/^@(?:-webkit-|-moz-)?keyframes/)) { - types = ($(/^[^{]+/) || '').trim(); - if (rules = $(this.block)) { - return new(tree.Directive)(name + " " + types, rules); - } - } else if (name = $(/^@[-a-z]+/)) { - if (name === '@font-face') { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while ((op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (path.charAt(0) !== '/' && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math.round(number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math.round(n); - } else { - throw { - error: "RuntimeError", - message: "math functions take numbers as parameters" - }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index) { - this.name = name; - this.args = args; - this.index = index; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { message: "error evaluating function `" + this.name + "`", - index: this.index }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - env.frames.unshift(this); - this.ruleset = this.ruleset && this.ruleset.eval(env); - env.frames.shift(); - return this; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - this.value = value ? value.trim() : ""; - this.index = index; -}; -tree.Element.prototype.toCSS = function (env) { - return this.combinator.toCSS(env || {}) + this.value; -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else if (value === '& ') { - this.value = '& '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - '&' : '', - '& ' : ' ', - ':' : ' :', - '::': '::', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports) { - var that = this; - - this._path = path; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css(\?.*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (root) { - if (! root) { - throw new(Error)("Error parsing " + that.path); - } - that.root = root; - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function () { - if (this.css) { - return "@import " + this._path.toCSS() + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, args, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(args, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments).rules); - match = true; - } catch (e) { - throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; - } - } - } - if (match) { - return rules; - } else { - throw { message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index }; - } - } - } - throw { message: this.selector.toCSS().trim() + " is undefined", - index: this.index }; - } -}; - -tree.mixin.Definition = function (name, params, rules) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - eval: function (env, args) { - var frame = new(tree.Ruleset)(null, []), context, _arguments = []; - - for (var i = 0, val; i < this.params.length; i++) { - if (this.params[i].name) { - if (val = (args && args[i]) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); - } else { - throw { message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push(args[i] || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (argsLength < this.required) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return v.value || v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + ";"; - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); - - ruleset.root = this.root; - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - Array.prototype.splice - .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - rule; - - if (! this.root) { - if (context.length === 0) { - paths = this.selectors.map(function (s) { return [s] }); - } else { - this.joinSelectors( paths, context, this.selectors ); - } - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); - css.push(selector, - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - var before = [], after = [], beforeElements = [], - afterElements = [], hasParentSelector = false, el; - - for (var i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.combinator.value.charAt(0) === '&') { - hasParentSelector = true; - } - if (hasParentSelector) afterElements.push(el); - else beforeElements.push(el); - } - - if (! hasParentSelector) { - afterElements = beforeElements; - beforeElements = []; - } - - if (beforeElements.length > 0) { - before.push(new(tree.Selector)(beforeElements)); - } - - if (afterElements.length > 0) { - after.push(new(tree.Selector)(afterElements)); - } - - for (var c = 0; c < context.length; c++) { - paths.push(before.concat(context[c]).concat(after)); - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; - if (this.elements[0].combinator.value === "") { - this.elements[0].combinator.value = ' '; - } -}; -tree.Selector.prototype.match = function (other) { - var len = this.elements.length, - olen = other.elements.length, - max = Math.min(len, olen); - - if (len < olen) { - return false; - } else { - for (var i = 0; i < max; i++) { - if (this.elements[i].value !== other.elements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - return this._css = this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, paths) { - if (val.data) { - this.attrs = val; - } else { - // Add the base path if the URL is relative and we are in the browser - if (!/^(?:https?:\/\/|file:\/\/|data:)?/.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') { - val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - this.value = val; - this.paths = paths; - } -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data - : this.value.toCSS()) + ")"; - }, - eval: function (ctx) { - return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index) { this.name = name, this.index = index }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { message: "variable " + name + " is undefined", - index: this.index }; - } - } -}; - -})(require('../tree')); -require('./tree').find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -require('./tree').jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; -var name; - -function loadStyleSheet(sheet, callback, reload, remaining) { - var sheetName = name.slice(0, name.lastIndexOf('/') + 1) + sheet.href; - var input = readFile(sheetName); - var parser = new less.Parser(); - parser.parse(input, function (e, root) { - if (e) { - print("Error: " + e); - quit(1); - } - callback(root, sheet, { local: false, lastModified: 0, remaining: remaining }); - }); - - // callback({}, sheet, { local: true, remaining: remaining }); -} - -function writeFile(filename, content) { - var fstream = new java.io.FileWriter(filename); - var out = new java.io.BufferedWriter(fstream); - out.write(content); - out.close(); -} - -// Command line integration via Rhino -(function (args) { - name = args[0]; - var output = args[1]; - - if (!name) { - print('No files present in the fileset; Check your pattern match in build.xml'); - quit(1); - } - path = name.split("/");path.pop();path=path.join("/") - - var input = readFile(name); - - if (!input) { - print('lesscss: couldn\'t open file ' + name); - quit(1); - } - - var result; - var parser = new less.Parser(); - parser.parse(input, function (e, root) { - if (e) { - quit(1); - } else { - result = root.toCSS(); - if (output) { - writeFile(output, result); - print("Written to " + output); - } else { - print(result); - } - quit(0); - } - }); - print("done"); -}(arguments)); diff --git a/awx/ui/static/lib/less/dist/less-rhino-1.3.1.js b/awx/ui/static/lib/less/dist/less-rhino-1.3.1.js deleted file mode 100644 index 1ebe0ea4b6..0000000000 --- a/awx/ui/static/lib/less/dist/less-rhino-1.3.1.js +++ /dev/null @@ -1,3725 +0,0 @@ -// -// Stub out `require` in rhino -// -function require(arg) { - return less[arg.split('/')[1]]; -}; - - -// ecma-5.js -// -// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License -// -- tlrobinson Tom Robinson -// dantman Daniel Friesen - -// -// Array -// -if (!Array.isArray) { - Array.isArray = function(obj) { - return Object.prototype.toString.call(obj) === "[object Array]" || - (obj instanceof Array); - }; -} -if (!Array.prototype.forEach) { - Array.prototype.forEach = function(block, thisObject) { - var len = this.length >>> 0; - for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - if (typeof(window) === 'undefined') { less = {} } - else { less = window.less = {} } - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'node'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed arround by reference. - var env = env || { }; - if (!env.contents) { env.contents={}; } // env.contents must be passed arround with top env - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env && env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: {}, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - mime: env && env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (e, root) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - - var imported = path in that.files; - - that.files[path] = root; // Store the root - - if (e && !that.error) { that.error = e } - - callback(e, root, imported); - - if (that.queue.length === 0) { finish(e) } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - function isWhitespace(c) { - // Could change to \s? - var code = c.charCodeAt(0); - return code === 32 || code === 10 || code === 9; - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, index, k; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - endIndex = i + chunks[j].length, - mem = i += length; - - while (i < endIndex) { - if (! isWhitespace(input.charAt(i))) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - throw { index: i, type: type || 'Syntax', message: msg }; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - function getInput(e, env) { - if (e.filename && env.filename && (e.filename !== env.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, input) { - for (var n = index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function getFileName(e) { - if(less.mode === 'browser' || less.mode === 'rhino') - return e.filename; - else - return require('path').resolve(e.filename); - } - - function getDebugInfo(index, inputStream, e) { - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: getFileName(e) - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input).line + 1); - this.callExtract = lines[getLocation(e.call, input).line]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length; i++) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - c = input.charAt(i); - } - } - } - } - - switch (c) { - case '{': if (! inParam) { level ++; chunk.push(c); break } - case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } - case '(': if (! inParam) { inParam = true; chunk.push(c); break } - case ')': if ( inParam) { inParam = false; chunk.push(c); break } - default: chunk.push(c); - } - } - if (level > 0) { - error = new(LessError)({ - index: i, - type: 'Parse', - message: "missing closing `}`", - filename: env.filename - }, env); - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - if (error) { - return callback(error); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = [], importError; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false, dumpLineNumbers: env.dumpLineNumbers }); - } catch (e) { - throw new(LessError)(e, env); - } - - if ((importError = parser.imports.error)) { // Check if there was an error during importing - if (importError instanceof LessError) throw importError; - else throw new(LessError)(importError, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('./cssmin').compressor.cssmin(css); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function (e) { - if (e) callback(e); - else callback(null, root); - }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null } - else { i += name.length } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index, env.filename) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.ratio) || - $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), imports.paths); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.filename); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var name, curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.filename); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - if ((c > 57 || c < 45) || c === 47) return; - - if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn|dpi|dpcm|dppx|rem|vw|vh|vmin|vm|ch)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A Ratio - // - // 16/9 - // - ratio: function () { - var value, c = input.charCodeAt(i); - if (c > 57 || c < 48) return; - - if (value = $(/^(\d+\/\d+)/)) { - return new(tree.Ratio)(value[1]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - save(); - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - - restore(); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args = [], arg, index = i, s = input.charAt(i), name, value, important = false; - - if (s !== '.' && s !== '#') { return } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - if ($('(')) { - while (arg = $(this.expression)) { - value = arg; - name = null; - - // Variable - if (arg.value.length == 1) { - var val = arg.value[0]; - if (val instanceof tree.Variable) { - if ($(':')) { - if (value = $(this.expression)) { - name = val.name; - } else { - throw new(Error)("Expected value"); - } - } - } - } - - args.push({ name: name, value: value }); - - if (! $(',')) { break } - } - if (! $(')')) throw new(Error)("Expected )"); - } - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.filename, important); - } - - restore(); - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*(;|})/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - do { - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - variadic = true; - break; - } else if (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - value = expect(this.expression, 'expected expression'); - params.push({ name: param.name, value: value }); - } else if ($(/^\.{3}/)) { - params.push({ name: param.name, variadic: true }); - variadic = true; - break; - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - } else { - break; - } - } while ($(',')) - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^)@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(') && (v = ($(this.entities.variableCurly) || $(this.entities.variable))) && $(')')) { - e = new(tree.Paren)(v); - } - } - - if (e) { return new(tree.Element)(c, e, i) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~') { - i++; - while (input.charAt(i).match(/\s/)) { i++ } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - // depreciated, will be removed soon - if ($('(')) { - sel = $(this.entity); - expect(')'); - return new(tree.Selector)([new(tree.Element)('', sel, i)]); - } - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - tag: function () { - return $(/^[A-Za-z][A-Za-z-]*[0-9]?/) || $('*'); - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^(?:[_A-Za-z0-9-]|\\.)+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match, debugInfo; - save(); - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) - ruleset.debugInfo = debugInfo; - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import(?:-(once))?\s+/); - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - return new(tree.Import)(path, imports, features, (dir[1] === 'once'), index); - } - } - - restore(); - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.entity); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features); - if(env.dumpLineNumbers) - media.debugInfo = debugInfo; - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, identifier, e, nodes, nonVendorSpecificName, - hasBlock, hasIdentifier; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - } - - if (hasIdentifier) { - name += " " + ($(/^[^{]+/) || '').trim(); - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else { - if ((value = $(this.entity)) && $(';')) { - return new(tree.Directive)(name, value); - } - } - - restore(); - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (!isWhitespace(input.charAt(i - 1)) && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-z0-9-]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (!/^([a-z-]+:)?\//.test(path) && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - // __ Now using the hack of passing a ref to top parser's content cache in the 1st arg. __ - loadStyleSheet({ href: path, title: path, type: env.mime, contents: env.contents }, function (e) { - if (e && typeof(env.errback) === "function") { - env.errback.call(null, path, paths, callback, env); - } else { - callback.apply(null, arguments); - } - }, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return number(c) }), - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round((0.2126 * (color.rgb[0]/255) + - 0.7152 * (color.rgb[1]/255) + - 0.0722 * (color.rgb[2]/255)) - * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = threshold.value; - } - if (((0.2126 * (color.rgb[0]/255) + 0.7152 * (color.rgb[1]/255) + 0.0722 * (color.rgb[2]/255)) * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(number(n).toFixed(fraction), n.unit); - } else if (typeof(n) === 'number') { - return n.toFixed(fraction); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - ceil: function (n) { - return this._math('ceil', n); - }, - floor: function (n) { - return this._math('floor', n); - }, - _math: function (fn, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(Math[fn](number(n)), n.unit); - } else if (typeof(n) === 'number') { - return Math[fn](n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False; - }, - ispercentage: function (n) { - return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False; - }, - isem: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - - /* Blending modes */ - - multiply: function(color1, color2) { - var r = color1.rgb[0] * color2.rgb[0] / 255; - var g = color1.rgb[1] * color2.rgb[1] / 255; - var b = color1.rgb[2] * color2.rgb[2] / 255; - return this.rgb(r, g, b); - }, - screen: function(color1, color2) { - var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - overlay: function(color1, color2) { - var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - softlight: function(color1, color2) { - var t = color2.rgb[0] * color1.rgb[0] / 255; - var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255; - t = color2.rgb[1] * color1.rgb[1] / 255; - var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255; - t = color2.rgb[2] * color1.rgb[2] / 255; - var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255; - return this.rgb(r, g, b); - }, - hardlight: function(color1, color2) { - var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255; - var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255; - var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - difference: function(color1, color2) { - var r = Math.abs(color1.rgb[0] - color2.rgb[0]); - var g = Math.abs(color1.rgb[1] - color2.rgb[1]); - var b = Math.abs(color1.rgb[2] - color2.rgb[2]); - return this.rgb(r, g, b); - }, - exclusion: function(color1, color2) { - var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255; - var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255; - var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - average: function(color1, color2) { - var r = (color1.rgb[0] + color2.rgb[0]) / 2; - var g = (color1.rgb[1] + color2.rgb[1]) / 2; - var b = (color1.rgb[2] + color2.rgb[2]) / 2; - return this.rgb(r, g, b); - }, - negation: function(color1, color2) { - var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]); - var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]); - var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]); - return this.rgb(r, g, b); - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - } -}; - -function hsla(hsla) { - return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - // 'transparent':'rgba(0,0,0,0)', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, filename) { - this.name = name; - this.args = args; - this.index = index; - this.filename = filename; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.filename }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS(env) }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype.eval = function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - }, - - // TODO: Perform unit conversion before comparing - compare: function (other) { - if (other instanceof tree.Dimension) { - if (other.value > this.value) { - return -1; - } else if (other.value < this.value) { - return 1; - } else { - return 0; - } - } else { - return -1; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - var evaldDirective = this; - if (this.ruleset) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name); - evaldDirective.ruleset = this.ruleset.eval(env); - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype.eval = function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); -}; -tree.Element.prototype.toCSS = function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value == '' && this.combinator.value.charAt(0) == '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports, features, once, index) { - var that = this; - - this.once = once; - this.index = index; - this._path = path; - this.features = features && new(tree.Value)(features); - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css(\?.*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (e, root, imported) { - if (e) { e.index = index } - if (imported && that.once) that.skip = imported; - that.root = root || new(tree.Ruleset)([], []); - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - return "@import " + this._path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) return []; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - Array.prototype - .splice - .apply(ruleset.rules, - [i, 1].concat(ruleset.rules[i].eval(env))); - } - } - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.Media = function (value, features) { - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.ruleset = new(tree.Ruleset)(selectors, value); - this.ruleset.allowImports = true; -}; -tree.Media.prototype = { - toCSS: function (ctx, env) { - var features = this.features.toCSS(env); - - this.ruleset.root = (ctx.length === 0 || ctx[0].multiMedia); - return '@media ' + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - }, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var blockIndex = env.mediaBlocks.length; - env.mediaPath.push(this); - env.mediaBlocks.push(this); - - var media = new(tree.Media)([], []); - if(this.debugInfo) { - this.ruleset.debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - media.features = this.features.eval(env); - - env.frames.unshift(this.ruleset); - media.ruleset = this.ruleset.eval(env); - env.frames.shift(); - - env.mediaBlocks[blockIndex] = media; - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env) - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', 0); - return [new(tree.Selector)([el])]; - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.ruleset = new(tree.Ruleset)(selectors.slice(0), [this.ruleset]); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, filename, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.filename = filename; - this.important = important; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, args, rules = [], match = false; - - for (var i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - for (var m = 0; m < mixins.length; m++) { - if (mixins[m].match(args, env)) { - try { - Array.prototype.push.apply( - rules, mixins[m].eval(env, this.arguments, this.important).rules); - match = true; - } catch (e) { - throw { message: e.message, index: this.index, filename: this.filename, stack: e.stack }; - } - } - } - if (match) { - return rules; - } else { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - this.arguments.map(function (a) { - return a.toCSS(); - }).join(', ') + ")`", - index: this.index, filename: this.filename }; - } - } - } - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.filename }; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - evalParams: function (env, args) { - var frame = new(tree.Ruleset)(null, []), varargs, arg; - - for (var i = 0, val, name; i < this.params.length; i++) { - arg = args && args[i] - - if (arg && arg.name) { - frame.rules.unshift(new(tree.Rule)(arg.name, arg.value.eval(env))); - args.splice(i, 1); - i--; - continue; - } - - if (name = this.params[i].name) { - if (this.params[i].variadic && args) { - varargs = []; - for (var j = i; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else if (val = (arg && arg.value) || this.params[i].value) { - frame.rules.unshift(new(tree.Rule)(name, val.eval(env))); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - } - } - return frame; - }, - eval: function (env, args, important) { - var frame = this.evalParams(env, args), context, _arguments = [], rules, start; - - for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { - _arguments.push((args[i] && args[i].value) || this.params[i].value); - } - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.rules.map(function (r) { - return new(tree.Rule)(r.name, r.value, '!important', r.index); - }) : this.rules.slice(0); - - return new(tree.Ruleset)(null, rules).eval({ - frames: [this, frame].concat(this.frames, env.frames) - }); - }, - match: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (! this.variadic) { - if (argsLength < this.required) { return false } - if (argsLength > this.params.length) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - } - - if (this.condition && !this.condition.eval({ - frames: [this.evalParams(env, args)].concat(env.frames) - })) { return false } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - toCSS: function (env) { - return '(' + this.value.toCSS(env) + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return ('value' in v) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ratio = function (value) { - this.value = value; -}; -tree.Ratio.prototype = { - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, - this.value.eval(context), - this.important, - this.index, this.inline); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules = []; - - ruleset.root = this.root; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.Import) { - rules = rules.concat(ruleset.rules[i].eval(env)); - } else { - rules.push(ruleset.rules[i]); - } - } - ruleset.rules = rules; - rules = []; - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - rules = rules.concat(ruleset.rules[i].eval(env)); - } else { - rules.push(ruleset.rules[i]); - } - } - ruleset.rules = rules; - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - if (env.mediaBlocks) { - for(var i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - match: function (args) { - return !args || args.length === 0; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - _rules = [], // - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - debugInfo, // Line number debugging - rule; - - if (! this.root) { - this.joinSelectors(paths, context, this.selectors); - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Directive) || (rule instanceof tree.Media)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - debugInfo = tree.debugInfo(env, this); - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : ',\n'); - - // Remove duplicates - for (var i = rules.length - 1; i >= 0; i--) { - if (_rules.indexOf(rules[i]) === -1) { - _rules.unshift(rules[i]); - } - } - rules = _rules; - - css.push(debugInfo + selector + - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for(i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for(j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length == 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0)); //new Element(el.Combinator, "")); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for(k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = new(tree.Selector)(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = new(tree.Selector)([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, 0)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for(i = 0; i < newSelectors.length; i++) { - paths.push(newSelectors[i]); - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length == 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for(i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = new(tree.Selector)(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; -}; -tree.Selector.prototype.match = function (other) { - var len = this.elements.length, - olen = other.elements.length, - max = Math.min(len, olen); - - if (len < olen) { - return false; - } else { - for (var i = 0; i < max; i++) { - if (this.elements[i].value !== other.elements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.eval = function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - })); -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - if (this.elements[0].combinator.value === "") { - this._css = ' '; - } else { - this._css = ''; - } - - this._css += this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); - - return this._css; -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, paths) { - this.value = val; - this.paths = paths; -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + this.value.toCSS() + ")"; - }, - eval: function (ctx) { - var val = this.value.eval(ctx); - - // Add the base path if the URL is relative and we are in the browser - if (typeof window !== 'undefined' && typeof val.value === "string" && !/^(?:[a-z-]+:|\/)/.test(val.value) && this.paths.length > 0) { - val.value = this.paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); - } - - return new(tree.URL)(val, this.paths); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { return variable } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.file, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.debugInfo = function(env, ctx) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx)+tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:"' + ctx.debugInfo.fileName + '";}line{font-family:"' + ctx.debugInfo.lineNumber + '";}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -var name; - -function loadStyleSheet(sheet, callback, reload, remaining) { - var endOfPath = Math.max(name.lastIndexOf('/'), name.lastIndexOf('\\')), - sheetName = name.slice(0, endOfPath + 1) + sheet.href, - contents = sheet.contents || {}, - input = readFile(sheetName); - - contents[sheetName] = input; - - var parser = new less.Parser({ - paths: [sheet.href.replace(/[\w\.-]+$/, '')], - contents: contents - }); - parser.parse(input, function (e, root) { - if (e) { - return error(e, sheetName); - } - try { - callback(e, root, sheet, { local: false, lastModified: 0, remaining: remaining }); - } catch(e) { - error(e, sheetName); - } - }); -} - -function writeFile(filename, content) { - var fstream = new java.io.FileWriter(filename); - var out = new java.io.BufferedWriter(fstream); - out.write(content); - out.close(); -} - -// Command line integration via Rhino -(function (args) { - var output, - compress = false, - i; - - for(i = 0; i < args.length; i++) { - switch(args[i]) { - case "-x": - compress = true; - break; - default: - if (!name) { - name = args[i]; - } else if (!output) { - output = args[i]; - } else { - print("unrecognised parameters"); - print("input_file [output_file] [-x]"); - } - } - } - - if (!name) { - print('No files present in the fileset; Check your pattern match in build.xml'); - quit(1); - } - path = name.split("/");path.pop();path=path.join("/") - - var input = readFile(name); - - if (!input) { - print('lesscss: couldn\'t open file ' + name); - quit(1); - } - - var result; - try { - var parser = new less.Parser(); - parser.parse(input, function (e, root) { - if (e) { - error(e, name); - quit(1); - } else { - result = root.toCSS({compress: compress || false}); - if (output) { - writeFile(output, result); - print("Written to " + output); - } else { - print(result); - } - quit(0); - } - }); - } - catch(e) { - error(e, name); - quit(1); - } - print("done"); -}(arguments)); - -function error(e, filename) { - - var content = "Error : " + filename + "\n"; - - filename = e.filename || filename; - - if (e.message) { - content += e.message + "\n"; - } - - var errorline = function (e, i, classname) { - if (e.extract[i]) { - content += - String(parseInt(e.line) + (i - 1)) + - ":" + e.extract[i] + "\n"; - } - }; - - if (e.stack) { - content += e.stack; - } else if (e.extract) { - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n'; - errorline(e, 0); - errorline(e, 1); - errorline(e, 2); - } - print(content); -} \ No newline at end of file diff --git a/awx/ui/static/lib/less/dist/less-rhino-1.3.2.js b/awx/ui/static/lib/less/dist/less-rhino-1.3.2.js deleted file mode 100644 index 4b83596f78..0000000000 --- a/awx/ui/static/lib/less/dist/less-rhino-1.3.2.js +++ /dev/null @@ -1,3990 +0,0 @@ -// -// Stub out `require` in rhino -// -function require(arg) { - return less[arg.split('/')[1]]; -}; - - -// ecma-5.js -// -// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License -// -- tlrobinson Tom Robinson -// dantman Daniel Friesen - -// -// Array -// -if (!Array.isArray) { - Array.isArray = function(obj) { - return Object.prototype.toString.call(obj) === "[object Array]" || - (obj instanceof Array); - }; -} -if (!Array.prototype.forEach) { - Array.prototype.forEach = function(block, thisObject) { - var len = this.length >>> 0; - for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree, charset; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - if (typeof(window) === 'undefined') { less = {} } - else { less = window.less = {} } - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'node'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed arround by reference. - var env = env || { }; - // env.contents and files must be passed arround with top env - if (!env.contents) { env.contents = {}; } - env.rootpath = env.rootpath || ''; // env.rootpath must be initialized to '' if not provided - if (!env.files) { env.files = {}; } - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (e, root, fullPath) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - - var imported = fullPath in that.files; - - that.files[fullPath] = root; // Store the root - - if (e && !that.error) { that.error = e } - - callback(e, root, imported); - - if (that.queue.length === 0) { finish(that.error) } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - function isWhitespace(c) { - // Could change to \s? - var code = c.charCodeAt(0); - return code === 32 || code === 10 || code === 9; - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, index, k; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - endIndex = i + chunks[j].length, - mem = i += length; - - while (i < endIndex) { - if (! isWhitespace(input.charAt(i))) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - function getInput(e, env) { - if (e.filename && env.filename && (e.filename !== env.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, input) { - for (var n = index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function getFileName(e) { - if(less.mode === 'browser' || less.mode === 'rhino') - return e.filename; - else - return require('path').resolve(e.filename); - } - - function getDebugInfo(index, inputStream, e) { - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: getFileName(e) - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input).line + 1); - this.callExtract = lines[getLocation(e.call, input).line]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length;) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - } - } - - switch (c) { - case '{': if (! inParam) { level ++; chunk.push(c); break } - case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } - case '(': if (! inParam) { inParam = true; chunk.push(c); break } - case ')': if ( inParam) { inParam = false; chunk.push(c); break } - default: chunk.push(c); - } - - i++; - } - if (level != 0) { - error = new(LessError)({ - index: i-1, - type: 'Parse', - message: (level > 0) ? "missing closing `}`" : "missing opening `{`", - filename: env.filename - }, env); - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - if (error) { - return callback(error, env); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = [], importError; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false, dumpLineNumbers: env.dumpLineNumbers }); - } catch (e) { - throw new(LessError)(e, env); - } - - if ((importError = parser.imports.error)) { // Check if there was an error during importing - if (importError instanceof LessError) throw importError; - else throw new(LessError)(importError, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('ycssmin').cssmin(css); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function (e) { - e = error || e; - if (e) callback(e); - else callback(null, root); - }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/) || $(/^;+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null } - else { i += name.length } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index, env.filename) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.ratio) || - $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted) || - $(this.entities.unicodeDescriptor); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.rootpath); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.filename); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var name, curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.filename); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) return; - - if (value = $(/^([+-]?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn|dpi|dpcm|dppx|rem|vw|vh|vmin|vm|ch)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A Ratio - // - // 16/9 - // - ratio: function () { - var value, c = input.charCodeAt(i); - if (c > 57 || c < 48) return; - - if (value = $(/^(\d+\/\d+)/)) { - return new(tree.Ratio)(value[1]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - if (ud = $(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/)) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - save(); - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - - restore(); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, argsSemiColon = [], argsComma = [], args, delim, arg, nameLoop, expressions, isSemiColonSeperated, expressionContainsNamed, index = i, s = input.charAt(i), name, value, important = false; - - if (s !== '.' && s !== '#') { return } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - if ($('(')) { - expressions = []; - while (arg = $(this.expression)) { - nameLoop = null; - value = arg; - - // Variable - if (arg.value.length == 1) { - var val = arg.value[0]; - if (val instanceof tree.Variable) { - if ($(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(this.expression); - nameLoop = (name = val.name); - } - } - } - - expressions.push(value); - - argsComma.push({ name: nameLoop, value: value }); - - if ($(',')) { - continue; - } - - if ($(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name: name, value: value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - expect(')'); - } - - args = isSemiColonSeperated ? argsSemiColon : argsComma; - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.filename, important); - } - - restore(); - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - do { - $(this.comment); - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - variadic = true; - params.push({ variadic: true }); - break; - } else if (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - value = expect(this.expression, 'expected expression'); - params.push({ name: param.name, value: value }); - } else if ($(/^\.{3}/)) { - params.push({ name: param.name, variadic: true }); - variadic = true; - break; - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - } else { - break; - } - } while ($(',') || $(';')) - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - $(this.comment); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) ||$(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^()@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(')) { - if ((v = ($(this.entities.variableCurly) || - $(this.entities.variable) || - $(this.selector))) && - $(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, i) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|') { - i++; - while (input.charAt(i).match(/\s/)) { i++ } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - // depreciated, will be removed soon - if ($('(')) { - sel = $(this.entity); - expect(')'); - return new(tree.Selector)([new(tree.Element)('', sel, i)]); - } - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^(?:[_A-Za-z0-9-]|\\.)+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match, debugInfo; - save(); - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) - ruleset.debugInfo = debugInfo; - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import(?:-(once))?\s+/); - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - return new(tree.Import)(path, imports, features, (dir[1] === 'once'), index, env.rootpath); - } - } - - restore(); - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.entity); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features); - if(env.dumpLineNumbers) - media.debugInfo = debugInfo; - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, identifier, e, nodes, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - if (!name) return; - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - name += " " + ($(/^[^{]+/) || '').trim(); - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else { - if ((value = hasExpression ? $(this.expression) : $(this.entity)) && $(';')) { - var directive = new(tree.Directive)(name, value); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while (!peek(/^\/[*\/]/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (!isWhitespace(input.charAt(i - 1)) && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-z0-9-]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (!/^([a-z-]+:)?\//.test(path) && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ - href: path, - title: path, - type: env.mime, - contents: env.contents, - files: env.files, - rootpath: env.rootpath, - entryPath: env.entryPath, - relativeUrls: env.relativeUrls }, - function (e, root, data, sheet, _, path) { - if (e && typeof(env.errback) === "function") { - env.errback.call(null, path, paths, callback, env); - } else { - callback.call(null, e, root, path); - } - }, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 256); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round((0.2126 * (color.rgb[0]/255) + - 0.7152 * (color.rgb[1]/255) + - 0.0722 * (color.rgb[2]/255)) * - color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = threshold.value; - } - if (((0.2126 * (color.rgb[0]/255) + 0.7152 * (color.rgb[1]/255) + 0.0722 * (color.rgb[2]/255)) * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return this._math(function(num) { return num.toFixed(fraction); }, n); - }, - ceil: function (n) { - return this._math(Math.ceil, n); - }, - floor: function (n) { - return this._math(Math.floor, n); - }, - _math: function (fn, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(fn(parseFloat(n.value)), n.unit); - } else if (typeof(n) === 'number') { - return fn(n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False; - }, - ispercentage: function (n) { - return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False; - }, - isem: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - - /* Blending modes */ - - multiply: function(color1, color2) { - var r = color1.rgb[0] * color2.rgb[0] / 255; - var g = color1.rgb[1] * color2.rgb[1] / 255; - var b = color1.rgb[2] * color2.rgb[2] / 255; - return this.rgb(r, g, b); - }, - screen: function(color1, color2) { - var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - overlay: function(color1, color2) { - var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - softlight: function(color1, color2) { - var t = color2.rgb[0] * color1.rgb[0] / 255; - var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255; - t = color2.rgb[1] * color1.rgb[1] / 255; - var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255; - t = color2.rgb[2] * color1.rgb[2] / 255; - var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255; - return this.rgb(r, g, b); - }, - hardlight: function(color1, color2) { - var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255; - var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255; - var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - difference: function(color1, color2) { - var r = Math.abs(color1.rgb[0] - color2.rgb[0]); - var g = Math.abs(color1.rgb[1] - color2.rgb[1]); - var b = Math.abs(color1.rgb[2] - color2.rgb[2]); - return this.rgb(r, g, b); - }, - exclusion: function(color1, color2) { - var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255; - var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255; - var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - average: function(color1, color2) { - var r = (color1.rgb[0] + color2.rgb[0]) / 2; - var g = (color1.rgb[1] + color2.rgb[1]) / 2; - var b = (color1.rgb[2] + color2.rgb[2]) / 2; - return this.rgb(r, g, b); - }, - negation: function(color1, color2) { - var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]); - var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]); - var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]); - return this.rgb(r, g, b); - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - } -}; - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit == '%') { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - // 'transparent':'rgba(0,0,0,0)', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, filename) { - this.name = name; - this.args = args; - this.index = index; - this.filename = filename; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // or we simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }); - - if (this.name in tree.functions) { // 1. - try { - return tree.functions[this.name].apply(tree.functions, args); - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.filename }; - } - } else { // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS(env) }).join(', ') + ")"); - } - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype.eval = function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - if (other.value > this.value) { - return -1; - } else if (other.value < this.value) { - return 1; - } else { - if (other.unit && this.unit !== other.unit) { - return -1; - } - return 0; - } - } else { - return -1; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - var evaldDirective = this; - if (this.ruleset) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name); - evaldDirective.ruleset = this.ruleset.eval(env); - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype.eval = function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); -}; -tree.Element.prototype.toCSS = function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value == '' && this.combinator.value.charAt(0) == '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ', - '|' : env.compress ? '|' : ' | ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports, features, once, index, rootpath) { - var that = this; - - this.once = once; - this.index = index; - this._path = path; - this.features = features && new(tree.Value)(features); - this.rootpath = rootpath; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /(\.[a-z]*$)|([\?;].*)$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css([\?;].*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (e, root, imported) { - if (e) { e.index = index } - if (imported && that.once) that.skip = imported; - that.root = root || new(tree.Ruleset)([], []); - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - // Add the base path if the import is relative - if (typeof this._path.value === "string" && !/^(?:[a-z-]+:|\/)/.test(this._path.value)) { - this._path.value = this.rootpath + this._path.value; - } - return "@import " + this._path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) return []; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.Media = function (value, features) { - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.ruleset = new(tree.Ruleset)(selectors, value); - this.ruleset.allowImports = true; -}; -tree.Media.prototype = { - toCSS: function (ctx, env) { - var features = this.features.toCSS(env); - - this.ruleset.root = (ctx.length === 0 || ctx[0].multiMedia); - return '@media ' + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - }, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)([], []); - if(this.debugInfo) { - this.ruleset.debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - media.features = this.features.eval(env); - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.ruleset); - media.ruleset = this.ruleset.eval(env); - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env) - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', 0); - return [new(tree.Selector)([el])]; - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.ruleset = new(tree.Ruleset)(selectors.slice(0), [this.ruleset]); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, filename, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.filename = filename; - this.important = important; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - if (mixin.matchArgs(args, env)) { - if (!mixin.matchCondition || mixin.matchCondition(args, env)) { - try { - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.filename, stack: e.stack }; - } - } - match = true; - } - } - if (match) { - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")`", - index: this.index, filename: this.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.filename }; - } - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - var frame = new(tree.Ruleset)(null, []), varargs, arg, params = this.params.slice(0), i, j, val, name, isNamedFound, argIndex; - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.rules.unshift(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) continue; - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.rules.unshift(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, {frames: mixinFrames}, args, _arguments), - context, rules, start, ruleset; - - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.parent.makeImportant.apply(this).rules : this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules).eval({ - frames: [this, frame].concat(mixinFrames) - }); - ruleset.originalRuleset = this; - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval({ - frames: [this.evalParams(env, {frames: this.frames.concat(env.frames)}, args, [])].concat(env.frames) - })) { return false } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (! this.variadic) { - if (argsLength < this.required) { return false } - if (argsLength > this.params.length) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - if (!a.operate) { - throw { name: "OperationError", - message: "Operation on an invalid type" }; - } - - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - toCSS: function (env) { - return '(' + this.value.toCSS(env) + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ratio = function (value) { - this.value = value; -}; -tree.Ratio.prototype = { - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, - this.value.eval(context), - this.important, - this.index, this.inline); -}; - -tree.Rule.prototype.makeImportant = function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.index, this.inline); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - rules = ruleset.rules[i].eval(env); - ruleset.rules.splice.apply(ruleset.rules, [i, 1].concat(rules)); - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - if (env.mediaBlocks) { - for(var i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var i, rules; - for (i = 0; i < this.rules.length; i++) { - if (this.rules[i] instanceof tree.Import) { - rules = this.rules[i].eval(env); - if (typeof rules.length === "number") { - this.rules.splice.apply(this.rules, [i, 1].concat(rules)); - i+= rules.length-1; - } else { - this.rules.splice(i, 1, rules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - _rules = [], // - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - debugInfo, // Line number debugging - rule; - - if (! this.root) { - this.joinSelectors(paths, context, this.selectors); - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Media)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Directive) { - var cssValue = rule.toCSS(paths, env); - // Output only the first @charset definition as such - convert the others - // to comments in case debug is enabled - if (rule.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (env.charset) { - if (rule.debugInfo) { - rulesets.push(tree.debugInfo(env, rule)); - rulesets.push(new tree.Comment("/* "+cssValue.replace(/\n/g, "")+" */\n").toCSS(env)); - } - continue; - } - env.charset = true; - } - rulesets.push(cssValue); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - debugInfo = tree.debugInfo(env, this); - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : ',\n'); - - // Remove duplicates - for (var i = rules.length - 1; i >= 0; i--) { - if (_rules.indexOf(rules[i]) === -1) { - _rules.unshift(rules[i]); - } - } - rules = _rules; - - css.push(debugInfo + selector + - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for(i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for(j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length == 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0)); //new Element(el.Combinator, "")); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for(k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = new(tree.Selector)(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = new(tree.Selector)([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, 0)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for(i = 0; i < newSelectors.length; i++) { - paths.push(newSelectors[i]); - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length == 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for(i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = new(tree.Selector)(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; -}; -tree.Selector.prototype.match = function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, max, i; - - oelements = other.elements.slice( - (other.elements.length && other.elements[0].value === "&") ? 1 : 0); - olen = oelements.length; - max = Math.min(len, olen) - - if (olen === 0 || len < olen) { - return false; - } else { - for (i = 0; i < max; i++) { - if (elements[i].value !== oelements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.eval = function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - })); -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - if (this.elements[0].combinator.value === "") { - this._css = ' '; - } else { - this._css = ''; - } - - this._css += this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); - - return this._css; -}; - -})(require('../tree')); -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, rootpath) { - this.value = val; - this.rootpath = rootpath; -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + this.value.toCSS() + ")"; - }, - eval: function (ctx) { - var val = this.value.eval(ctx), rootpath; - - // Add the base path if the URL is relative - if (typeof val.value === "string" && !/^(?:[a-z-]+:|\/)/.test(val.value)) { - rootpath = this.rootpath; - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - return new(tree.URL)(val, this.rootpath); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.file, - index: this.index }; - } - - this.evaluating = true; - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { - this.evaluating = false; - return variable; - } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.file, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.debugInfo = function(env, ctx) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx)+tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/[\/:.]/g, '\\$&') + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -var name; - -function loadStyleSheet(sheet, callback, reload, remaining) { - var endOfPath = Math.max(name.lastIndexOf('/'), name.lastIndexOf('\\')), - sheetName = name.slice(0, endOfPath + 1) + sheet.href, - contents = sheet.contents || {}, - input = readFile(sheetName); - - contents[sheetName] = input; - - var parser = new less.Parser({ - paths: [sheet.href.replace(/[\w\.-]+$/, '')], - contents: contents - }); - parser.parse(input, function (e, root) { - if (e) { - return error(e, sheetName); - } - try { - callback(e, root, input, sheet, { local: false, lastModified: 0, remaining: remaining }, sheetName); - } catch(e) { - error(e, sheetName); - } - }); -} - -function writeFile(filename, content) { - var fstream = new java.io.FileWriter(filename); - var out = new java.io.BufferedWriter(fstream); - out.write(content); - out.close(); -} - -// Command line integration via Rhino -(function (args) { - var output, - compress = false, - i; - - for(i = 0; i < args.length; i++) { - switch(args[i]) { - case "-x": - compress = true; - break; - default: - if (!name) { - name = args[i]; - } else if (!output) { - output = args[i]; - } else { - print("unrecognised parameters"); - print("input_file [output_file] [-x]"); - } - } - } - - if (!name) { - print('No files present in the fileset; Check your pattern match in build.xml'); - quit(1); - } - path = name.split("/");path.pop();path=path.join("/") - - var input = readFile(name); - - if (!input) { - print('lesscss: couldn\'t open file ' + name); - quit(1); - } - - var result; - try { - var parser = new less.Parser(); - parser.parse(input, function (e, root) { - if (e) { - error(e, name); - quit(1); - } else { - result = root.toCSS({compress: compress || false}); - if (output) { - writeFile(output, result); - print("Written to " + output); - } else { - print(result); - } - quit(0); - } - }); - } - catch(e) { - error(e, name); - quit(1); - } - print("done"); -}(arguments)); - -function error(e, filename) { - - var content = "Error : " + filename + "\n"; - - filename = e.filename || filename; - - if (e.message) { - content += e.message + "\n"; - } - - var errorline = function (e, i, classname) { - if (e.extract[i]) { - content += - String(parseInt(e.line) + (i - 1)) + - ":" + e.extract[i] + "\n"; - } - }; - - if (e.stack) { - content += e.stack; - } else if (e.extract) { - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n'; - errorline(e, 0); - errorline(e, 1); - errorline(e, 2); - } - print(content); -} \ No newline at end of file diff --git a/awx/ui/static/lib/less/dist/less-rhino-1.3.3.js b/awx/ui/static/lib/less/dist/less-rhino-1.3.3.js deleted file mode 100644 index 857a97c941..0000000000 --- a/awx/ui/static/lib/less/dist/less-rhino-1.3.3.js +++ /dev/null @@ -1,4002 +0,0 @@ -// -// Stub out `require` in rhino -// -function require(arg) { - return less[arg.split('/')[1]]; -}; - - -// ecma-5.js -// -// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License -// -- tlrobinson Tom Robinson -// dantman Daniel Friesen - -// -// Array -// -if (!Array.isArray) { - Array.isArray = function(obj) { - return Object.prototype.toString.call(obj) === "[object Array]" || - (obj instanceof Array); - }; -} -if (!Array.prototype.forEach) { - Array.prototype.forEach = function(block, thisObject) { - var len = this.length >>> 0; - for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree, charset; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - if (typeof(window) === 'undefined') { less = {} } - else { less = window.less = {} } - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'node'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed arround by reference. - var env = env || { }; - // env.contents and files must be passed arround with top env - if (!env.contents) { env.contents = {}; } - env.rootpath = env.rootpath || ''; // env.rootpath must be initialized to '' if not provided - if (!env.files) { env.files = {}; } - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (e, root, fullPath) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - - var imported = fullPath in that.files; - - that.files[fullPath] = root; // Store the root - - if (e && !that.error) { that.error = e } - - callback(e, root, imported); - - if (that.queue.length === 0) { finish(that.error) } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - function isWhitespace(c) { - // Could change to \s? - var code = c.charCodeAt(0); - return code === 32 || code === 10 || code === 9; - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, index, k; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - endIndex = i + chunks[j].length, - mem = i += length; - - while (i < endIndex) { - if (! isWhitespace(input.charAt(i))) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - function getInput(e, env) { - if (e.filename && env.filename && (e.filename !== env.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, input) { - for (var n = index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function getFileName(e) { - if(less.mode === 'browser' || less.mode === 'rhino') - return e.filename; - else - return require('path').resolve(e.filename); - } - - function getDebugInfo(index, inputStream, e) { - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: getFileName(e) - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input).line + 1); - this.callExtract = lines[getLocation(e.call, input).line]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length;) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - } - } - - switch (c) { - case '{': if (! inParam) { level ++; chunk.push(c); break } - case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } - case '(': if (! inParam) { inParam = true; chunk.push(c); break } - case ')': if ( inParam) { inParam = false; chunk.push(c); break } - default: chunk.push(c); - } - - i++; - } - if (level != 0) { - error = new(LessError)({ - index: i-1, - type: 'Parse', - message: (level > 0) ? "missing closing `}`" : "missing opening `{`", - filename: env.filename - }, env); - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - if (error) { - return callback(error, env); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = [], importError; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false, dumpLineNumbers: env.dumpLineNumbers }); - } catch (e) { - throw new(LessError)(e, env); - } - - if ((importError = parser.imports.error)) { // Check if there was an error during importing - if (importError instanceof LessError) throw importError; - else throw new(LessError)(importError, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('ycssmin').cssmin(css); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function (e) { - e = error || e; - if (e) callback(e); - else callback(null, root); - }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/) || $(/^;+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null } - else { i += name.length } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index, env.filename) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.ratio) || - $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted) || - $(this.entities.unicodeDescriptor); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.rootpath); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.filename); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var name, curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.filename); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) return; - - if (value = $(/^([+-]?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn|dpi|dpcm|dppx|rem|vw|vh|vmin|vm|ch)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A Ratio - // - // 16/9 - // - ratio: function () { - var value, c = input.charCodeAt(i); - if (c > 57 || c < 48) return; - - if (value = $(/^(\d+\/\d+)/)) { - return new(tree.Ratio)(value[1]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - if (ud = $(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/)) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - save(); - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - - restore(); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, argsSemiColon = [], argsComma = [], args, delim, arg, nameLoop, expressions, isSemiColonSeperated, expressionContainsNamed, index = i, s = input.charAt(i), name, value, important = false; - - if (s !== '.' && s !== '#') { return } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - if ($('(')) { - expressions = []; - while (arg = $(this.expression)) { - nameLoop = null; - value = arg; - - // Variable - if (arg.value.length == 1) { - var val = arg.value[0]; - if (val instanceof tree.Variable) { - if ($(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(this.expression); - nameLoop = (name = val.name); - } - } - } - - expressions.push(value); - - argsComma.push({ name: nameLoop, value: value }); - - if ($(',')) { - continue; - } - - if ($(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name: name, value: value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - expect(')'); - } - - args = isSemiColonSeperated ? argsSemiColon : argsComma; - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.filename, important); - } - - restore(); - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - do { - $(this.comment); - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - variadic = true; - params.push({ variadic: true }); - break; - } else if (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - value = expect(this.expression, 'expected expression'); - params.push({ name: param.name, value: value }); - } else if ($(/^\.{3}/)) { - params.push({ name: param.name, variadic: true }); - variadic = true; - break; - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - } else { - break; - } - } while ($(',') || $(';')) - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - $(this.comment); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) ||$(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^()@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(')) { - if ((v = ($(this.entities.variableCurly) || - $(this.entities.variable) || - $(this.selector))) && - $(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, i) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|') { - i++; - while (input.charAt(i).match(/\s/)) { i++ } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match; - - // depreciated, will be removed soon - if ($('(')) { - sel = $(this.entity); - if (!$(')')) { return null; } - return new(tree.Selector)([new(tree.Element)('', sel, i)]); - } - - while (e = $(this.element)) { - c = input.charAt(i); - elements.push(e) - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements) } - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^(?:[_A-Za-z0-9-]|\\.)+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match, debugInfo; - - save(); - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) - ruleset.debugInfo = debugInfo; - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import(?:-(once))?\s+/); - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - return new(tree.Import)(path, imports, features, (dir[1] === 'once'), index, env.rootpath); - } - } - - restore(); - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.entity); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features); - if(env.dumpLineNumbers) - media.debugInfo = debugInfo; - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, identifier, e, nodes, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - if (!name) return; - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - name += " " + ($(/^[^{]+/) || '').trim(); - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else { - if ((value = hasExpression ? $(this.expression) : $(this.entity)) && $(';')) { - var directive = new(tree.Directive)(name, value); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while (!peek(/^\/[*\/]/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (!isWhitespace(input.charAt(i - 1)) && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-z0-9-]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (!/^([a-z-]+:)?\//.test(path) && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ - href: path, - title: path, - type: env.mime, - contents: env.contents, - files: env.files, - rootpath: env.rootpath, - entryPath: env.entryPath, - relativeUrls: env.relativeUrls }, - function (e, root, data, sheet, _, path) { - if (e && typeof(env.errback) === "function") { - env.errback.call(null, path, paths, callback, env); - } else { - callback.call(null, e, root, path); - } - }, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 256); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round((0.2126 * (color.rgb[0]/255) + - 0.7152 * (color.rgb[1]/255) + - 0.0722 * (color.rgb[2]/255)) * - color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = threshold.value; - } - if (((0.2126 * (color.rgb[0]/255) + 0.7152 * (color.rgb[1]/255) + 0.0722 * (color.rgb[2]/255)) * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return this._math(function(num) { return num.toFixed(fraction); }, n); - }, - ceil: function (n) { - return this._math(Math.ceil, n); - }, - floor: function (n) { - return this._math(Math.floor, n); - }, - _math: function (fn, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(fn(parseFloat(n.value)), n.unit); - } else if (typeof(n) === 'number') { - return fn(n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False; - }, - ispercentage: function (n) { - return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False; - }, - isem: function (n) { - return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - - /* Blending modes */ - - multiply: function(color1, color2) { - var r = color1.rgb[0] * color2.rgb[0] / 255; - var g = color1.rgb[1] * color2.rgb[1] / 255; - var b = color1.rgb[2] * color2.rgb[2] / 255; - return this.rgb(r, g, b); - }, - screen: function(color1, color2) { - var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - overlay: function(color1, color2) { - var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - softlight: function(color1, color2) { - var t = color2.rgb[0] * color1.rgb[0] / 255; - var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255; - t = color2.rgb[1] * color1.rgb[1] / 255; - var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255; - t = color2.rgb[2] * color1.rgb[2] / 255; - var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255; - return this.rgb(r, g, b); - }, - hardlight: function(color1, color2) { - var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255; - var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255; - var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - difference: function(color1, color2) { - var r = Math.abs(color1.rgb[0] - color2.rgb[0]); - var g = Math.abs(color1.rgb[1] - color2.rgb[1]); - var b = Math.abs(color1.rgb[2] - color2.rgb[2]); - return this.rgb(r, g, b); - }, - exclusion: function(color1, color2) { - var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255; - var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255; - var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - average: function(color1, color2) { - var r = (color1.rgb[0] + color2.rgb[0]) / 2; - var g = (color1.rgb[1] + color2.rgb[1]) / 2; - var b = (color1.rgb[2] + color2.rgb[2]) / 2; - return this.rgb(r, g, b); - }, - negation: function(color1, color2) { - var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]); - var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]); - var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]); - return this.rgb(r, g, b); - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - } -}; - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit == '%') { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit == '%' ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - // 'transparent':'rgba(0,0,0,0)', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, filename) { - this.name = name; - this.args = args; - this.index = index; - this.filename = filename; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }), - result; - - if (this.name in tree.functions) { // 1. - try { - result = tree.functions[this.name].apply(tree.functions, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.filename }; - } - } - - // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS(env) }).join(', ') + ")"); - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype.eval = function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = unit || null; -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - var css = this.value + this.unit; - return css; - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2em` will yield `3px`. - // In the future, we could implement some unit - // conversions such that `100cm + 10mm` would yield - // `101cm`. - operate: function (op, other) { - return new(tree.Dimension) - (tree.operate(op, this.value, other.value), - this.unit || other.unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - if (other.value > this.value) { - return -1; - } else if (other.value < this.value) { - return 1; - } else { - if (other.unit && this.unit !== other.unit) { - return -1; - } - return 0; - } - } else { - return -1; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - var evaldDirective = this; - if (this.ruleset) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name); - evaldDirective.ruleset = this.ruleset.eval(env); - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype.eval = function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); -}; -tree.Element.prototype.toCSS = function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value == '' && this.combinator.value.charAt(0) == '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ', - '|' : env.compress ? '|' : ' | ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports, features, once, index, rootpath) { - var that = this; - - this.once = once; - this.index = index; - this._path = path; - this.features = features && new(tree.Value)(features); - this.rootpath = rootpath; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /(\.[a-z]*$)|([\?;].*)$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css([\?;].*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (e, root, imported) { - if (e) { e.index = index } - if (imported && that.once) that.skip = imported; - that.root = root || new(tree.Ruleset)([], []); - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - // Add the base path if the import is relative - if (typeof this._path.value === "string" && !/^(?:[a-z-]+:|\/)/.test(this._path.value)) { - this._path.value = this.rootpath + this._path.value; - } - return "@import " + this._path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) return []; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.Media = function (value, features) { - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.ruleset = new(tree.Ruleset)(selectors, value); - this.ruleset.allowImports = true; -}; -tree.Media.prototype = { - toCSS: function (ctx, env) { - var features = this.features.toCSS(env); - - this.ruleset.root = (ctx.length === 0 || ctx[0].multiMedia); - return '@media ' + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - }, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)([], []); - if(this.debugInfo) { - this.ruleset.debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - media.features = this.features.eval(env); - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.ruleset); - media.ruleset = this.ruleset.eval(env); - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env) - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', 0); - return [new(tree.Selector)([el])]; - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.ruleset = new(tree.Ruleset)(selectors.slice(0), [this.ruleset]); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, filename, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.filename = filename; - this.important = important; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - if (mixin.matchArgs(args, env)) { - if (!mixin.matchCondition || mixin.matchCondition(args, env)) { - try { - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.filename, stack: e.stack }; - } - } - match = true; - } - } - if (match) { - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")`", - index: this.index, filename: this.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.filename }; - } - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - var frame = new(tree.Ruleset)(null, []), varargs, arg, params = this.params.slice(0), i, j, val, name, isNamedFound, argIndex; - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.rules.unshift(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) continue; - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.rules.unshift(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, {frames: mixinFrames}, args, _arguments), - context, rules, start, ruleset; - - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.parent.makeImportant.apply(this).rules : this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules).eval({ - frames: [this, frame].concat(mixinFrames) - }); - ruleset.originalRuleset = this; - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval({ - frames: [this.evalParams(env, {frames: this.frames.concat(env.frames)}, args, [])].concat(env.frames) - })) { return false } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (! this.variadic) { - if (argsLength < this.required) { return false } - if (argsLength > this.params.length) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - if (!a.operate) { - throw { name: "OperationError", - message: "Operation on an invalid type" }; - } - - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - toCSS: function (env) { - return '(' + this.value.toCSS(env) + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ratio = function (value) { - this.value = value; -}; -tree.Ratio.prototype = { - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, - this.value.eval(context), - this.important, - this.index, this.inline); -}; - -tree.Rule.prototype.makeImportant = function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.index, this.inline); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - rules = ruleset.rules[i].eval(env); - ruleset.rules.splice.apply(ruleset.rules, [i, 1].concat(rules)); - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - - if (env.mediaBlocks) { - for(var i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var i, rules; - for (i = 0; i < this.rules.length; i++) { - if (this.rules[i] instanceof tree.Import) { - rules = this.rules[i].eval(env); - if (typeof rules.length === "number") { - this.rules.splice.apply(this.rules, [i, 1].concat(rules)); - i+= rules.length-1; - } else { - this.rules.splice(i, 1, rules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (this._rulesets) { return this._rulesets } - else { - return this._rulesets = this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - } - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - _rules = [], // - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - debugInfo, // Line number debugging - rule; - - if (! this.root) { - this.joinSelectors(paths, context, this.selectors); - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Media)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Directive) { - var cssValue = rule.toCSS(paths, env); - // Output only the first @charset definition as such - convert the others - // to comments in case debug is enabled - if (rule.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (env.charset) { - if (rule.debugInfo) { - rulesets.push(tree.debugInfo(env, rule)); - rulesets.push(new tree.Comment("/* "+cssValue.replace(/\n/g, "")+" */\n").toCSS(env)); - } - continue; - } - env.charset = true; - } - rulesets.push(cssValue); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - debugInfo = tree.debugInfo(env, this); - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : ',\n'); - - // Remove duplicates - for (var i = rules.length - 1; i >= 0; i--) { - if (_rules.indexOf(rules[i]) === -1) { - _rules.unshift(rules[i]); - } - } - rules = _rules; - - css.push(debugInfo + selector + - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for(i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for(j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length == 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0)); //new Element(el.Combinator, "")); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for(k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = new(tree.Selector)(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = new(tree.Selector)([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, 0)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for(i = 0; i < newSelectors.length; i++) { - paths.push(newSelectors[i]); - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length == 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for(i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = new(tree.Selector)(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements) { - this.elements = elements; -}; -tree.Selector.prototype.match = function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, max, i; - - oelements = other.elements.slice( - (other.elements.length && other.elements[0].value === "&") ? 1 : 0); - olen = oelements.length; - max = Math.min(len, olen) - - if (olen === 0 || len < olen) { - return false; - } else { - for (i = 0; i < max; i++) { - if (elements[i].value !== oelements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.eval = function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - })); -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - if (this.elements[0].combinator.value === "") { - this._css = ' '; - } else { - this._css = ''; - } - - this._css += this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); - - return this._css; -}; - -})(require('../tree')); -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, rootpath) { - this.value = val; - this.rootpath = rootpath; -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + this.value.toCSS() + ")"; - }, - eval: function (ctx) { - var val = this.value.eval(ctx), rootpath; - - // Add the base path if the URL is relative - if (typeof val.value === "string" && !/^(?:[a-z-]+:|\/)/.test(val.value)) { - rootpath = this.rootpath; - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - return new(tree.URL)(val, this.rootpath); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.file, - index: this.index }; - } - - this.evaluating = true; - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { - this.evaluating = false; - return variable; - } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.file, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.debugInfo = function(env, ctx) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx)+tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/[\/:.]/g, '\\$&') + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -var name; - -function loadStyleSheet(sheet, callback, reload, remaining) { - var endOfPath = Math.max(name.lastIndexOf('/'), name.lastIndexOf('\\')), - sheetName = name.slice(0, endOfPath + 1) + sheet.href, - contents = sheet.contents || {}, - input = readFile(sheetName); - - contents[sheetName] = input; - - var parser = new less.Parser({ - paths: [sheet.href.replace(/[\w\.-]+$/, '')], - contents: contents - }); - parser.parse(input, function (e, root) { - if (e) { - return error(e, sheetName); - } - try { - callback(e, root, input, sheet, { local: false, lastModified: 0, remaining: remaining }, sheetName); - } catch(e) { - error(e, sheetName); - } - }); -} - -function writeFile(filename, content) { - var fstream = new java.io.FileWriter(filename); - var out = new java.io.BufferedWriter(fstream); - out.write(content); - out.close(); -} - -// Command line integration via Rhino -(function (args) { - var output, - compress = false, - i; - - for(i = 0; i < args.length; i++) { - switch(args[i]) { - case "-x": - compress = true; - break; - default: - if (!name) { - name = args[i]; - } else if (!output) { - output = args[i]; - } else { - print("unrecognised parameters"); - print("input_file [output_file] [-x]"); - } - } - } - - if (!name) { - print('No files present in the fileset; Check your pattern match in build.xml'); - quit(1); - } - path = name.split("/");path.pop();path=path.join("/") - - var input = readFile(name); - - if (!input) { - print('lesscss: couldn\'t open file ' + name); - quit(1); - } - - var result; - try { - var parser = new less.Parser(); - parser.parse(input, function (e, root) { - if (e) { - error(e, name); - quit(1); - } else { - result = root.toCSS({compress: compress || false}); - if (output) { - writeFile(output, result); - print("Written to " + output); - } else { - print(result); - } - quit(0); - } - }); - } - catch(e) { - error(e, name); - quit(1); - } - print("done"); -}(arguments)); - -function error(e, filename) { - - var content = "Error : " + filename + "\n"; - - filename = e.filename || filename; - - if (e.message) { - content += e.message + "\n"; - } - - var errorline = function (e, i, classname) { - if (e.extract[i]) { - content += - String(parseInt(e.line) + (i - 1)) + - ":" + e.extract[i] + "\n"; - } - }; - - if (e.stack) { - content += e.stack; - } else if (e.extract) { - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n'; - errorline(e, 0); - errorline(e, 1); - errorline(e, 2); - } - print(content); -} \ No newline at end of file diff --git a/awx/ui/static/lib/less/dist/less-rhino-1.4.0.js b/awx/ui/static/lib/less/dist/less-rhino-1.4.0.js deleted file mode 100644 index a90573f7f3..0000000000 --- a/awx/ui/static/lib/less/dist/less-rhino-1.4.0.js +++ /dev/null @@ -1,4273 +0,0 @@ -// -// Stub out `require` in rhino -// -function require(arg) { - return less[arg.split('/')[1]]; -}; - - -// ecma-5.js -// -// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License -// -- tlrobinson Tom Robinson -// dantman Daniel Friesen - -// -// Array -// -if (!Array.isArray) { - Array.isArray = function(obj) { - return Object.prototype.toString.call(obj) === "[object Array]" || - (obj instanceof Array); - }; -} -if (!Array.prototype.forEach) { - Array.prototype.forEach = function(block, thisObject) { - var len = this.length >>> 0; - for (var i = 0; i < len; i++) { - if (i in this) { - block.call(thisObject, this[i], i, this); - } - } - }; -} -if (!Array.prototype.map) { - Array.prototype.map = function(fun /*, thisp*/) { - var len = this.length >>> 0; - var res = new Array(len); - var thisp = arguments[1]; - - for (var i = 0; i < len; i++) { - if (i in this) { - res[i] = fun.call(thisp, this[i], i, this); - } - } - return res; - }; -} -if (!Array.prototype.filter) { - Array.prototype.filter = function (block /*, thisp */) { - var values = []; - var thisp = arguments[1]; - for (var i = 0; i < this.length; i++) { - if (block.call(thisp, this[i])) { - values.push(this[i]); - } - } - return values; - }; -} -if (!Array.prototype.reduce) { - Array.prototype.reduce = function(fun /*, initial*/) { - var len = this.length >>> 0; - var i = 0; - - // no value to return if no initial value and an empty array - if (len === 0 && arguments.length === 1) throw new TypeError(); - - if (arguments.length >= 2) { - var rv = arguments[1]; - } else { - do { - if (i in this) { - rv = this[i++]; - break; - } - // if array contains no values, no initial value to return - if (++i >= len) throw new TypeError(); - } while (true); - } - for (; i < len; i++) { - if (i in this) { - rv = fun.call(null, rv, this[i], i, this); - } - } - return rv; - }; -} -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (value /*, fromIndex */ ) { - var length = this.length; - var i = arguments[1] || 0; - - if (!length) return -1; - if (i >= length) return -1; - if (i < 0) i += length; - - for (; i < length; i++) { - if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } - if (value === this[i]) return i; - } - return -1; - }; -} - -// -// Object -// -if (!Object.keys) { - Object.keys = function (object) { - var keys = []; - for (var name in object) { - if (Object.prototype.hasOwnProperty.call(object, name)) { - keys.push(name); - } - } - return keys; - }; -} - -// -// String -// -if (!String.prototype.trim) { - String.prototype.trim = function () { - return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); - }; -} -var less, tree, charset; - -if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { - // Rhino - // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 - if (typeof(window) === 'undefined') { less = {} } - else { less = window.less = {} } - tree = less.tree = {}; - less.mode = 'rhino'; -} else if (typeof(window) === 'undefined') { - // Node.js - less = exports, - tree = require('./tree'); - less.mode = 'node'; -} else { - // Browser - if (typeof(window.less) === 'undefined') { window.less = {} } - less = window.less, - tree = window.less.tree = {}; - less.mode = 'browser'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser; - - var that = this; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed arround by reference. - var env = env || { }; - // env.contents and files must be passed arround with top env - if (!env.contents) { env.contents = {}; } - env.rootpath = env.rootpath || ''; // env.rootpath must be initialized to '' if not provided - if (!env.files) { env.files = {}; } - - // This function is called after all files - // have been imported through `@import`. - var finish = function () {}; - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, callback) { - var that = this; - this.queue.push(path); - - // - // Import a file asynchronously - // - less.Parser.importer(path, this.paths, function (e, root, fullPath) { - that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue - - var imported = fullPath in that.files; - - that.files[fullPath] = root; // Store the root - - if (e && !that.error) { that.error = e } - - callback(e, root, imported); - - if (that.queue.length === 0) { finish(that.error) } // Call `finish` if we're done importing - }, env); - } - }; - - function save() { temp = chunks[j], memo = i, current = i } - function restore() { chunks[j] = temp, i = memo, current = i } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - function isWhitespace(c) { - // Could change to \s? - var code = c.charCodeAt(0); - return code === 32 || code === 10 || code === 9; - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, args, length, index, k; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - endIndex = i + chunks[j].length, - mem = i += length; - - while (i < endIndex) { - if (! isWhitespace(input.charAt(i))) { break } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - if (tok.test(chunks[j])) { - return true; - } else { - return false; - } - } - } - - function getInput(e, env) { - if (e.filename && env.filename && (e.filename !== env.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, input) { - for (var n = index, column = -1; - n >= 0 && input.charAt(n) !== '\n'; - n--) { column++ } - - return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null, - column: column }; - } - - function getFileName(e) { - if(less.mode === 'browser' || less.mode === 'rhino') - return e.filename; - else - return require('path').resolve(e.filename); - } - - function getDebugInfo(index, inputStream, e) { - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: getFileName(e) - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = e.call && (getLocation(e.call, input).line + 1); - this.callExtract = lines[getLocation(e.call, input).line]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - this.env.filename = this.env.filename || null; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, start, end, zone, line, lines, buff = [], c, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length;) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - } - } - - switch (c) { - case '{': if (! inParam) { level ++; chunk.push(c); break } - case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } - case '(': if (! inParam) { inParam = true; chunk.push(c); break } - case ')': if ( inParam) { inParam = false; chunk.push(c); break } - default: chunk.push(c); - } - - i++; - } - if (level != 0) { - error = new(LessError)({ - index: i-1, - type: 'Parse', - message: (level > 0) ? "missing closing `}`" : "missing opening `{`", - filename: env.filename - }, env); - } - - return chunks.map(function (c) { return c.join('') });; - })([[]]); - - if (error) { - return callback(error, env); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - var line, lines, column; - - return function (options, variables) { - var frames = [], importError; - - options = options || {}; - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, 0); - }); - frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var css = evaluate.call(this, { frames: frames }) - .toCSS([], { compress: options.compress || false, dumpLineNumbers: env.dumpLineNumbers }); - } catch (e) { - throw new(LessError)(e, env); - } - - if ((importError = parser.imports.error)) { // Check if there was an error during importing - if (importError instanceof LessError) throw importError; - else throw new(LessError)(importError, env); - } - - if (options.yuicompress && less.mode === 'node') { - return require('ycssmin').cssmin(css); - } else if (options.compress) { - return css.replace(/(\s)+/g, "$1"); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - lines = input.split('\n'); - line = (input.slice(0, i).match(/\n/g) || "").length + 1; - - for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } - - error = { - type: "Parse", - message: "Syntax Error on line " + line, - index: i, - filename: env.filename, - line: line, - column: column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - if (this.imports.queue.length > 0) { - finish = function (e) { - e = error || e; - if (e) callback(e); - else callback(null, root); - }; - } else { - callback(error, root); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.extendRule) || $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/) || $(/^;+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') return; - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment); - } - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - if (tree.colors.hasOwnProperty(k)) { - // detect named color - return new(tree.Color)(tree.colors[k].slice(1)); - } else { - return new(tree.Keyword)(k); - } - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null } - else { i += name.length } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) return; - - if (name) { return new(tree.Call)(name, args, index, env.filename) } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { break } - } - return args; - }, - literal: function () { - return $(this.entities.ratio) || - $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted) || - $(this.entities.unicodeDescriptor); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.rootpath); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.filename); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var name, curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.filename); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) return; - - if (value = $(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A Ratio - // - // 16/9 - // - ratio: function () { - var value, c = input.charCodeAt(i); - if (c > 57 || c < 48) return; - - if (value = $(/^(\d+\/\d+)/)) { - return new(tree.Ratio)(value[1]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - if (ud = $(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/)) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++, e = true } // Escaped strings - if (input.charAt(j) !== '`') { return } - - e && $('~'); - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } - }, - - // - // A font size/line-height shorthand - // - // small/12px - // - // We need to peek first, or we'll match on keywords and dimensions - // - shorthand: function () { - var a, b; - - if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; - - save(); - - if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { - return new(tree.Shorthand)(a, b); - } - - restore(); - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements = [], e, args, index = i; - - if (!$(isRule ? /^&:extend\(/ : /^:extend\(/)) { return; } - - while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { - elements.push(new(tree.Element)(null, e, i)); - } - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return new(tree.Extend)(elements, index); - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, argsSemiColon = [], argsComma = [], args, delim, arg, nameLoop, expressions, isSemiColonSeperated, expressionContainsNamed, index = i, s = input.charAt(i), name, value, important = false; - - if (s !== '.' && s !== '#') { return } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i)); - c = $('>'); - } - if ($('(')) { - expressions = []; - while (arg = $(this.expression)) { - nameLoop = null; - value = arg; - - // Variable - if (arg.value.length == 1) { - var val = arg.value[0]; - if (val instanceof tree.Variable) { - if ($(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(this.expression); - nameLoop = (name = val.name); - } - } - } - - expressions.push(value); - - argsComma.push({ name: nameLoop, value: value }); - - if ($(',')) { - continue; - } - - if ($(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name: name, value: value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - expect(')'); - } - - args = isSemiColonSeperated ? argsSemiColon : argsComma; - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.filename, important); - } - - restore(); - }, - - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, param, value, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) return; - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - do { - $(this.comment); - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - variadic = true; - params.push({ variadic: true }); - break; - } else if (param = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword)) { - // Variable - if (param instanceof tree.Variable) { - if ($(':')) { - value = expect(this.expression, 'expected expression'); - params.push({ name: param.name, value: value }); - } else if ($(/^\.{3}/)) { - params.push({ name: param.name, variadic: true }); - variadic = true; - break; - } else { - params.push({ name: param.name }); - } - } else { - params.push({ value: param }); - } - } else { - break; - } - } while ($(',') || $(';')) - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - $(this.comment); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) ||$(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) return; - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, t, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^()@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(')) { - if ((v = (//$(this.entities.variableCurly) || - $(this.selector))) && - $(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, i) } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var match, c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|') { - i++; - while (input.charAt(i).match(/\s/)) { i++ } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function () { - var sel, e, elements = [], c, match, extend; - - while ((extend = $(this.extend)) || (e = $(this.element))) { - if (!e) { - break; - } - c = input.charAt(i); - elements.push(e) - e = null; - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { break } - } - - if (elements.length > 0) { return new(tree.Selector)(elements, extend) } - if (extend) { error("Extend must be used to extend a selector"); } - }, - attribute: function () { - var attr = '', key, val, op; - - if (! $('[')) return; - - if (key = $(/^(?:[_A-Za-z0-9-]|\\.)+/) || $(this.entities.quoted)) { - if ((op = $(/^[|~*$^]?=/)) && - (val = $(this.entities.quoted) || $(/^[\w-]+/))) { - attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); - } else { attr = key } - } - - if (! $(']')) return; - - if (attr) { return "[" + attr + "]" } - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, match, debugInfo; - - save(); - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - while (s = $(this.selector)) { - selectors.push(s); - $(this.comment); - if (! $(',')) { break } - $(this.comment); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) - ruleset.debugInfo = debugInfo; - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function () { - var name, value, c = input.charAt(i), important, match; - save(); - - if (c === '.' || c === '#' || c === '&') { return } - - if (name = $(this.variable) || $(this.property)) { - if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { - i += match[0].length - 1; - value = new(tree.Anonymous)(match[1]); - } else if (name === "font") { - value = $(this.font); - } else { - value = $(this.value); - } - important = $(this.important); - - if (value && $(this.end)) { - return new(tree.Rule)(name, value, important, memo); - } else { - furthest = i; - restore(); - } - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import(?:-(once|multiple))?\s+/); - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - var importOnce = dir[1] !== 'multiple'; - return new(tree.Import)(path, imports, features, importOnce, index, env.rootpath); - } - } - - restore(); - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = $(this.entities.keyword)) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.entity); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) - debugInfo = getDebugInfo(i, input, env); - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features); - if(env.dumpLineNumbers) - media.debugInfo = debugInfo; - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, identifier, e, nodes, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression; - - if (input.charAt(i) !== '@') return; - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - if (!name) return; - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - name += " " + ($(/^[^{]+/) || '').trim(); - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules); - } - } else { - if ((value = hasExpression ? $(this.expression) : $(this.entity)) && $(';')) { - var directive = new(tree.Directive)(name, value); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - font: function () { - var value = [], expression = [], weight, shorthand, font, e; - - while (e = $(this.shorthand) || $(this.entity)) { - expression.push(e); - } - value.push(new(tree.Expression)(expression)); - - if ($(',')) { - while (e = $(this.expression)) { - value.push(e); - if (! $(',')) { break } - } - } - return new(tree.Value)(value); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = [], important; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var e; - - if ($('(') && (e = $(this.expression)) && $(')')) { - return e; - } - }, - multiplication: function () { - var m, a, op, operation; - if (m = $(this.operand)) { - while (!peek(/^\/[*\/]/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation; - if (m = $(this.multiplication)) { - while ((op = $(/^[-+]\s+/) || (!isWhitespace(input.charAt(i - 1)) && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - operation = new(tree.Operation)(op, [operation || m, a]); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while ($(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) - : o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = [], d; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-z0-9-]+)\s*:/)) { - return name[1]; - } - } - } - }; -}; - -if (less.mode === 'browser' || less.mode === 'rhino') { - // - // Used by `@import` directives - // - less.Parser.importer = function (path, paths, callback, env) { - if (!/^([a-z-]+:)?\//.test(path) && paths.length > 0) { - path = paths[0] + path; - } - // We pass `true` as 3rd argument, to force the reload of the import. - // This is so we can get the syntax tree as opposed to just the CSS output, - // as we need this to evaluate the current stylesheet. - loadStyleSheet({ - href: path, - title: path, - type: env.mime, - contents: env.contents, - files: env.files, - rootpath: env.rootpath, - entryPath: env.entryPath, - relativeUrls: env.relativeUrls }, - function (e, root, data, sheet, _, path) { - if (e && typeof(env.errback) === "function") { - env.errback.call(null, path, paths, callback, env); - } else { - callback.call(null, e, root, path); - } - }, true); - }; -} - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 256); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - h = (number(h) % 360) / 360; - s = number(s); l = number(l); a = number(a); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; - else if (h * 2 < 1) return m2; - else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; - else return m1; - } - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round((0.2126 * (color.rgb[0]/255) + - 0.7152 * (color.rgb[1]/255) + - 0.0722 * (color.rgb[2]/255)) * - color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = threshold.value; - } - if (((0.2126 * (color.rgb[0]/255) + 0.7152 * (color.rgb[1]/255) + 0.0722 * (color.rgb[2]/255)) * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return this._math(function(num) { return num.toFixed(fraction); }, n); - }, - ceil: function (n) { - return this._math(Math.ceil, n); - }, - floor: function (n) { - return this._math(Math.floor, n); - }, - _math: function (fn, n) { - if (n instanceof tree.Dimension) { - return new(tree.Dimension)(fn(parseFloat(n.value)), n.unit); - } else if (typeof(n) === 'number') { - return fn(n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - return new(tree.Color)(n.value.slice(1)); - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return (n instanceof tree.Dimension) && n.unit.is('px') ? tree.True : tree.False; - }, - ispercentage: function (n) { - return (n instanceof tree.Dimension) && n.unit.is('%') ? tree.True : tree.False; - }, - isem: function (n) { - return (n instanceof tree.Dimension) && n.unit.is('em') ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - - /* Blending modes */ - - multiply: function(color1, color2) { - var r = color1.rgb[0] * color2.rgb[0] / 255; - var g = color1.rgb[1] * color2.rgb[1] / 255; - var b = color1.rgb[2] * color2.rgb[2] / 255; - return this.rgb(r, g, b); - }, - screen: function(color1, color2) { - var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - overlay: function(color1, color2) { - var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255; - var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255; - var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - softlight: function(color1, color2) { - var t = color2.rgb[0] * color1.rgb[0] / 255; - var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255; - t = color2.rgb[1] * color1.rgb[1] / 255; - var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255; - t = color2.rgb[2] * color1.rgb[2] / 255; - var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255; - return this.rgb(r, g, b); - }, - hardlight: function(color1, color2) { - var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255; - var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255; - var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - difference: function(color1, color2) { - var r = Math.abs(color1.rgb[0] - color2.rgb[0]); - var g = Math.abs(color1.rgb[1] - color2.rgb[1]); - var b = Math.abs(color1.rgb[2] - color2.rgb[2]); - return this.rgb(r, g, b); - }, - exclusion: function(color1, color2) { - var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255; - var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255; - var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255; - return this.rgb(r, g, b); - }, - average: function(color1, color2) { - var r = (color1.rgb[0] + color2.rgb[0]) / 2; - var g = (color1.rgb[1] + color2.rgb[1]) / 2; - var b = (color1.rgb[2] + color2.rgb[2]) / 2; - return this.rgb(r, g, b); - }, - negation: function(color1, color2) { - var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]); - var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]); - var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]); - return this.rgb(r, g, b); - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - } -}; - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -})(require('./tree')); -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - // 'transparent':'rgba(0,0,0,0)', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - toCSS: function () { - return "alpha(opacity=" + - (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; - }, - eval: function (env) { - if (this.value.eval) { this.value = this.value.eval(env) } - return this; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Anonymous = function (string) { - this.value = string.value || string; -}; -tree.Anonymous.prototype = { - toCSS: function () { - return this.value; - }, - eval: function () { return this }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - toCSS: function () { - return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - } -}; - -})(require('../tree'));(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, filename) { - this.name = name; - this.args = args; - this.index = index; - this.filename = filename; -}; -tree.Call.prototype = { - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env) }), - result; - - if (this.name in tree.functions) { // 1. - try { - result = tree.functions[this.name].apply(tree.functions, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.filename }; - } - } - - // 2. - return new(tree.Anonymous)(this.name + - "(" + args.map(function (a) { return a.toCSS(env) }).join(', ') + ")"); - }, - - toCSS: function (env) { - return this.eval(env).toCSS(); - } -}; - -})(require('../tree')); -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; -tree.Color.prototype = { - eval: function () { return this }, - - // - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - // - toCSS: function () { - if (this.alpha < 1.0) { - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(', ') + ")"; - } else { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (op, other) { - var result = []; - - if (! (other instanceof tree.Color)) { - other = other.toColor(); - } - - for (var c = 0; c < 3; c++) { - result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(result, this.alpha + other.alpha); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - - -})(require('../tree')); -(function (tree) { - -tree.Comment = function (value, silent) { - this.value = value; - this.silent = !!silent; -}; -tree.Comment.prototype = { - toCSS: function (env) { - return env.compress ? '' : this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype.eval = function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - var result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<'; - case 0: return op === '=' || op === '>=' || op === '=<'; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; -}; - -})(require('../tree')); -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - eval: function () { return this }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - toCSS: function () { - return this.unit.isEmpty() ? this.value : - (String(this.value) + this.unit.toCSS()); - }, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (op, other) { - var value = tree.operate(op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length == 0 && unit.denominator.length == 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(other.unit.toCSS() !== unit.toCSS()) { - throw new Error("Incompatible units: '" + unit.toCSS() + - "' and '" + other.unit.toCSS() + "'."); - } - - value = tree.operate(op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a = this.unify(), b = other.unify(), - aValue = a.value, bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - if (!b.unit.isEmpty() && a.unit.compare(b) !== 0) { - return -1; - } - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'm', duration: 's' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, conversion, targetUnit; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(function (atomicUnit, denominator) { - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - } -}; - -tree.Unit = function (numerator, denominator) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; -}; - -tree.Unit.prototype = { - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0)); - }, - - toCSS: function () { - var i, css = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - css += "/" + this.denominator[i]; - } - return css; - }, - - compare: function (other) { - return this.is(other.toCSS()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toCSS() === unitString; - }, - - isEmpty: function () { - return this.numerator.length == 0 && this.denominator.length == 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, groupName, result = {}; - - for (groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(function (atomicUnit) { - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Directive = function (name, value) { - this.name = name; - - if (Array.isArray(value)) { - this.ruleset = new(tree.Ruleset)([], value); - this.ruleset.allowImports = true; - } else { - this.value = value; - } -}; -tree.Directive.prototype = { - toCSS: function (ctx, env) { - if (this.ruleset) { - this.ruleset.root = true; - return this.name + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - } else { - return this.name + ' ' + this.value.toCSS() + ';\n'; - } - }, - eval: function (env) { - var evaldDirective = this; - if (this.ruleset) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name); - evaldDirective.ruleset = this.ruleset.eval(env); - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } -}; - -})(require('../tree')); -(function (tree) { - -tree.Element = function (combinator, value, index) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; -}; -tree.Element.prototype.eval = function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index); -}; -tree.Element.prototype.toCSS = function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value == '' && this.combinator.value.charAt(0) == '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype.toCSS = function (env) { - return { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : env.compress ? '+' : ' + ', - '~' : env.compress ? '~' : ' ~ ', - '>' : env.compress ? '>' : ' > ', - '|' : env.compress ? '|' : ' | ' - }[this.value]; -}; - -})(require('../tree')); -(function (tree) { - -tree.Expression = function (value) { this.value = value }; -tree.Expression.prototype = { - eval: function (env) { - if (this.value.length > 1) { - return new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return this; - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS ? e.toCSS(env) : ''; - }).join(' '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Extend = function Extend(elements, index) { - this.selector = new(tree.Selector)(elements); - this.index = index; -}; - -tree.Extend.prototype.eval = function Extend_eval(env, selectors) { - var selfSelectors = findSelfSelectors(selectors || env.selectors), - targetValue = this.selector.elements[0].value; - - env.frames.forEach(function(frame) { - frame.rulesets().forEach(function(rule) { - rule.selectors.forEach(function(selector) { - selector.elements.forEach(function(element, idx) { - if (element.value === targetValue) { - selfSelectors.forEach(function(_selector) { - _selector.elements[0] = new tree.Element( - element.combinator, - _selector.elements[0].value, - _selector.elements[0].index - ); - rule.selectors.push(new tree.Selector( - selector.elements - .slice(0, idx) - .concat(_selector.elements) - .concat(selector.elements.slice(idx + 1)) - )); - }); - } - }); - }); - }); - }); - return this; -}; - -function findSelfSelectors(selectors) { - var ret = []; - - (function loop(elem, i) { - if (selectors[i] && selectors[i].length) { - selectors[i].forEach(function(s) { - loop(s.elements.concat(elem), i + 1); - }); - } - else { - ret.push({ elements: elem }); - } - })([], 0); - - return ret; -} - - -})(require('../tree')); -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, imports, features, once, index, rootpath) { - var that = this; - - this.once = once; - this.index = index; - this._path = path; - this.features = features && new(tree.Value)(features); - this.rootpath = rootpath; - - // The '.less' extension is optional - if (path instanceof tree.Quoted) { - this.path = /(\.[a-z]*$)|([\?;].*)$/.test(path.value) ? path.value : path.value + '.less'; - } else { - this.path = path.value.value || path.value; - } - - this.css = /css([\?;].*)?$/.test(this.path); - - // Only pre-compile .less files - if (! this.css) { - imports.push(this.path, function (e, root, imported) { - if (e) { e.index = index } - if (imported && that.once) that.skip = imported; - that.root = root || new(tree.Ruleset)([], []); - }); - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - toCSS: function (env) { - var features = this.features ? ' ' + this.features.toCSS(env) : ''; - - if (this.css) { - // Add the base path if the import is relative - if (typeof this._path.value === "string" && !/^(?:[a-z-]+:|\/)/.test(this._path.value)) { - this._path.value = this.rootpath + this._path.value; - } - return "@import " + this._path.toCSS() + features + ';\n'; - } else { - return ""; - } - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) return []; - - if (this.css) { - return this; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Keyword = function (value) { this.value = value }; -tree.Keyword.prototype = { - eval: function () { return this }, - toCSS: function () { return this.value }, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); -(function (tree) { - -tree.Media = function (value, features) { - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.ruleset = new(tree.Ruleset)(selectors, value); - this.ruleset.allowImports = true; -}; -tree.Media.prototype = { - toCSS: function (ctx, env) { - var features = this.features.toCSS(env); - - this.ruleset.root = (ctx.length === 0 || ctx[0].multiMedia); - return '@media ' + features + (env.compress ? '{' : ' {\n ') + - this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + - (env.compress ? '}': '\n}\n'); - }, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)([], []); - if(this.debugInfo) { - this.ruleset.debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - media.features = this.features.eval(env); - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.ruleset); - media.ruleset = this.ruleset.eval(env); - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env) - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, - find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', 0); - return [new(tree.Selector)([el])]; - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.ruleset = new(tree.Ruleset)(selectors.slice(0), [this.ruleset]); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, filename, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.filename = filename; - this.important = important; -}; -tree.mixin.Call.prototype = { - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - if (mixin.matchArgs(args, env)) { - if (!mixin.matchCondition || mixin.matchCondition(args, env)) { - try { - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.filename, stack: e.stack }; - } - } - match = true; - } - } - if (match) { - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")`", - index: this.index, filename: this.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.filename }; - } - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1 } - else { return count } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - toCSS: function () { return "" }, - variable: function (name) { return this.parent.variable.call(this, name) }, - variables: function () { return this.parent.variables.call(this) }, - find: function () { return this.parent.find.apply(this, arguments) }, - rulesets: function () { return this.parent.rulesets.apply(this) }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - var frame = new(tree.Ruleset)(null, []), varargs, arg, params = this.params.slice(0), i, j, val, name, isNamedFound, argIndex; - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.rules.unshift(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) continue; - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.rules.unshift(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, {frames: mixinFrames}, args, _arguments), - context, rules, start, ruleset; - - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = important ? - this.parent.makeImportant.apply(this).rules : this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules).eval({ - frames: [this, frame].concat(mixinFrames) - }); - ruleset.originalRuleset = this; - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval({ - frames: [this.evalParams(env, {frames: this.frames.concat(env.frames)}, args, [])].concat(env.frames) - })) { return false } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len, frame; - - if (! this.variadic) { - if (argsLength < this.required) { return false } - if (argsLength > this.params.length) { return false } - if ((this.required > 0) && (argsLength > this.params.length)) { return false } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Operation = function (op, operands) { - this.op = op.trim(); - this.operands = operands; -}; -tree.Operation.prototype.eval = function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env), - temp; - - if (a instanceof tree.Dimension && b instanceof tree.Color) { - if (this.op === '*' || this.op === '+') { - temp = b, b = a, a = temp; - } else { - throw { name: "OperationError", - message: "Can't substract or divide a color from a number" }; - } - } - if (!a.operate) { - throw { name: "OperationError", - message: "Operation on an invalid type" }; - } - - return a.operate(this.op, b); -}; - -tree.operate = function (op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - toCSS: function (env) { - return '(' + this.value.toCSS(env).trim() + ')'; - }, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Quoted = function (str, content, escaped, i) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = i; -}; -tree.Quoted.prototype = { - toCSS: function () { - if (this.escaped) { - return this.value; - } else { - return this.quote + this.value + this.quote; - } - }, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index).eval(env); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ratio = function (value) { - this.value = value; -}; -tree.Ratio.prototype = { - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Rule = function (name, value, important, index, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.index = index; - this.inline = inline || false; - - if (name.charAt(0) === '@') { - this.variable = true; - } else { this.variable = false } -}; -tree.Rule.prototype.toCSS = function (env) { - if (this.variable) { return "" } - else { - return this.name + (env.compress ? ':' : ': ') + - this.value.toCSS(env) + - this.important + (this.inline ? "" : ";"); - } -}; - -tree.Rule.prototype.eval = function (context) { - return new(tree.Rule)(this.name, - this.value.eval(context), - this.important, - this.index, this.inline); -}; - -tree.Rule.prototype.makeImportant = function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.index, this.inline); -}; - -tree.Shorthand = function (a, b) { - this.a = a; - this.b = b; -}; - -tree.Shorthand.prototype = { - toCSS: function (env) { - return this.a.toCSS(env) + "/" + this.b.toCSS(env); - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // currrent selectors - if (!env.selectors) { - env.selectors = []; - } - env.selectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (var i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - rules = ruleset.rules[i].eval(env); - ruleset.rules.splice.apply(ruleset.rules, [i, 1].concat(rules)); - i += rules.length-1; - ruleset.resetCache(); - } - } - - if (this.selectors) { - for (var i = 0; i < this.selectors.length; i++) { - if (this.selectors[i].extend) { - this.selectors[i].extend.eval(env, [[this.selectors[i]]].concat(env.selectors.slice(1))); - } - } - } - - // Evaluate everything else - for (var i = 0, rule; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - env.selectors.shift(); - - if (env.mediaBlocks) { - for(var i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var i, rules; - for (i = 0; i < this.rules.length; i++) { - if (this.rules[i] instanceof tree.Import) { - rules = this.rules[i].eval(env); - if (typeof rules.length === "number") { - this.rules.splice.apply(this.rules, [i, 1].concat(rules)); - i+= rules.length-1; - } else { - this.rules.splice(i, 1, rules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (this._variables) { return this._variables } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - return this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - }, - find: function (selector, self) { - self = self || this; - var rules = [], rule, match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key] } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > rule.selectors[j].elements.length) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(1)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - // - // Entry point for code generation - // - // `context` holds an array of arrays. - // - toCSS: function (context, env) { - var css = [], // The CSS output - rules = [], // node.Rule instances - _rules = [], // - rulesets = [], // node.Ruleset instances - paths = [], // Current selectors - selector, // The fully rendered selector - debugInfo, // Line number debugging - rule; - - if (! this.root) { - this.joinSelectors(paths, context, this.selectors); - } - - // Compile rules and rulesets - for (var i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - - if (rule.rules || (rule instanceof tree.Media)) { - rulesets.push(rule.toCSS(paths, env)); - } else if (rule instanceof tree.Directive) { - var cssValue = rule.toCSS(paths, env); - // Output only the first @charset definition as such - convert the others - // to comments in case debug is enabled - if (rule.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (env.charset) { - if (rule.debugInfo) { - rulesets.push(tree.debugInfo(env, rule)); - rulesets.push(new tree.Comment("/* "+cssValue.replace(/\n/g, "")+" */\n").toCSS(env)); - } - continue; - } - env.charset = true; - } - rulesets.push(cssValue); - } else if (rule instanceof tree.Comment) { - if (!rule.silent) { - if (this.root) { - rulesets.push(rule.toCSS(env)); - } else { - rules.push(rule.toCSS(env)); - } - } - } else { - if (rule.toCSS && !rule.variable) { - rules.push(rule.toCSS(env)); - } else if (rule.value && !rule.variable) { - rules.push(rule.value.toString()); - } - } - } - - rulesets = rulesets.join(''); - - // If this is the root node, we don't render - // a selector, or {}. - // Otherwise, only output if this ruleset has rules. - if (this.root) { - css.push(rules.join(env.compress ? '' : '\n')); - } else { - if (rules.length > 0) { - debugInfo = tree.debugInfo(env, this); - selector = paths.map(function (p) { - return p.map(function (s) { - return s.toCSS(env); - }).join('').trim(); - }).join(env.compress ? ',' : ',\n'); - - // Remove duplicates - for (var i = rules.length - 1; i >= 0; i--) { - if (_rules.indexOf(rules[i]) === -1) { - _rules.unshift(rules[i]); - } - } - rules = _rules; - - css.push(debugInfo + selector + - (env.compress ? '{' : ' {\n ') + - rules.join(env.compress ? '' : '\n ') + - (env.compress ? '}' : '\n}\n')); - } - } - css.push(rulesets); - - return css.join('') + (env.compress ? '\n' : ''); - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for(i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for(j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length == 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0)); //new Element(el.Combinator, "")); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for(k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = new(tree.Selector)(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = new(tree.Selector)([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, 0)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for(i = 0; i < newSelectors.length; i++) { - paths.push(newSelectors[i]); - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length == 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for(i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = new(tree.Selector)(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); -(function (tree) { - -tree.Selector = function (elements, extend) { - this.elements = elements; - this.extend = extend; -}; -tree.Selector.prototype.match = function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, max, i; - - oelements = other.elements.slice( - (other.elements.length && other.elements[0].value === "&") ? 1 : 0); - olen = oelements.length; - max = Math.min(len, olen) - - if (olen === 0 || len < olen) { - return false; - } else { - for (i = 0; i < max; i++) { - if (elements[i].value !== oelements[i].value) { - return false; - } - } - } - return true; -}; -tree.Selector.prototype.eval = function (env) { - return new(tree.Selector)(this.elements.map(function (e) { - return e.eval(env); - }), this.extend); -}; -tree.Selector.prototype.toCSS = function (env) { - if (this._css) { return this._css } - - if (this.elements[0].combinator.value === "") { - this._css = ' '; - } else { - this._css = ''; - } - - this._css += this.elements.map(function (e) { - if (typeof(e) === 'string') { - return ' ' + e.trim(); - } else { - return e.toCSS(env); - } - }).join(''); - - return this._css; -}; - -})(require('../tree')); -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - toCSS: function (env) { - return this.value; - }, - eval: function () { return this } -}; - -})(require('../tree')); -(function (tree) { - -tree.URL = function (val, rootpath) { - this.value = val; - this.rootpath = rootpath; -}; -tree.URL.prototype = { - toCSS: function () { - return "url(" + this.value.toCSS() + ")"; - }, - eval: function (ctx) { - var val = this.value.eval(ctx), rootpath; - - // Add the base path if the URL is relative - if (typeof val.value === "string" && !/^(?:[a-z-]+:|\/)/.test(val.value)) { - rootpath = this.rootpath; - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - return new(tree.URL)(val, this.rootpath); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Value = function (value) { - this.value = value; - this.is = 'value'; -}; -tree.Value.prototype = { - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - toCSS: function (env) { - return this.value.map(function (e) { - return e.toCSS(env); - }).join(env.compress ? ',' : ', '); - } -}; - -})(require('../tree')); -(function (tree) { - -tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file }; -tree.Variable.prototype = { - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') == 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.file, - index: this.index }; - } - - this.evaluating = true; - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { - this.evaluating = false; - return variable; - } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.file, - index: this.index }; - } - } -}; - -})(require('../tree')); -(function (tree) { - -tree.debugInfo = function(env, ctx) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx)+tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/[\/:.]/g, '\\$&') + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r } - } - return null; -}; -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -})(require('./tree')); -var name; - -function loadStyleSheet(sheet, callback, reload, remaining) { - var endOfPath = Math.max(name.lastIndexOf('/'), name.lastIndexOf('\\')), - sheetName = name.slice(0, endOfPath + 1) + sheet.href, - contents = sheet.contents || {}, - input = readFile(sheetName); - - contents[sheetName] = input; - - var parser = new less.Parser({ - paths: [sheet.href.replace(/[\w\.-]+$/, '')], - contents: contents - }); - parser.parse(input, function (e, root) { - if (e) { - return error(e, sheetName); - } - try { - callback(e, root, input, sheet, { local: false, lastModified: 0, remaining: remaining }, sheetName); - } catch(e) { - error(e, sheetName); - } - }); -} - -function writeFile(filename, content) { - var fstream = new java.io.FileWriter(filename); - var out = new java.io.BufferedWriter(fstream); - out.write(content); - out.close(); -} - -// Command line integration via Rhino -(function (args) { - var output, - compress = false, - i; - - for(i = 0; i < args.length; i++) { - switch(args[i]) { - case "-x": - compress = true; - break; - default: - if (!name) { - name = args[i]; - } else if (!output) { - output = args[i]; - } else { - print("unrecognised parameters"); - print("input_file [output_file] [-x]"); - } - } - } - - if (!name) { - print('No files present in the fileset; Check your pattern match in build.xml'); - quit(1); - } - path = name.split("/");path.pop();path=path.join("/") - - var input = readFile(name); - - if (!input) { - print('lesscss: couldn\'t open file ' + name); - quit(1); - } - - var result; - try { - var parser = new less.Parser(); - parser.parse(input, function (e, root) { - if (e) { - error(e, name); - quit(1); - } else { - result = root.toCSS({compress: compress || false}); - if (output) { - writeFile(output, result); - print("Written to " + output); - } else { - print(result); - } - quit(0); - } - }); - } - catch(e) { - error(e, name); - quit(1); - } - print("done"); -}(arguments)); - -function error(e, filename) { - - var content = "Error : " + filename + "\n"; - - filename = e.filename || filename; - - if (e.message) { - content += e.message + "\n"; - } - - var errorline = function (e, i, classname) { - if (e.extract[i]) { - content += - String(parseInt(e.line) + (i - 1)) + - ":" + e.extract[i] + "\n"; - } - }; - - if (e.stack) { - content += e.stack; - } else if (e.extract) { - content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n'; - errorline(e, 0); - errorline(e, 1); - errorline(e, 2); - } - print(content); -} \ No newline at end of file diff --git a/awx/ui/static/lib/less/dist/less-rhino-1.5.1.js b/awx/ui/static/lib/less/dist/less-rhino-1.5.1.js deleted file mode 100644 index 4f4c4b63ac..0000000000 --- a/awx/ui/static/lib/less/dist/less-rhino-1.5.1.js +++ /dev/null @@ -1,6831 +0,0 @@ -/* LESS.js v1.5.1 RHINO | Copyright (c) 2009-2013, Alexis Sellier */ - -// -// Stub out `require` in rhino -// -function require(arg) { - var split = arg.split('/'); - var resultModule = split.length == 1 ? less.modules[split[0]] : less[split[1]]; - if (!resultModule) { - throw { message: "Cannot find module '" + arg + "'"}; - } - return resultModule; -} - - -if (typeof(window) === 'undefined') { less = {} } -else { less = window.less = {} } -tree = less.tree = {}; -less.mode = 'rhino'; - -(function() { - - console = function() { - var stdout = java.lang.System.out; - var stderr = java.lang.System.err; - - function doLog(out, type) { - return function() { - var args = java.lang.reflect.Array.newInstance(java.lang.Object, arguments.length - 1); - var format = arguments[0]; - var conversionIndex = 0; - // need to look for %d (integer) conversions because in Javascript all numbers are doubles - for (var i = 1; i < arguments.length; i++) { - var arg = arguments[i]; - if (conversionIndex != -1) { - conversionIndex = format.indexOf('%', conversionIndex); - } - if (conversionIndex >= 0 && conversionIndex < format.length) { - var conversion = format.charAt(conversionIndex + 1); - if (conversion === 'd' && typeof arg === 'number') { - arg = new java.lang.Integer(new java.lang.Double(arg).intValue()); - } - conversionIndex++; - } - args[i-1] = arg; - } - try { - out.println(type + java.lang.String.format(format, args)); - } catch(ex) { - stderr.println(ex); - } - } - } - return { - log: doLog(stdout, ''), - info: doLog(stdout, 'INFO: '), - error: doLog(stderr, 'ERROR: '), - warn: doLog(stderr, 'WARN: ') - }; - }(); - - less.modules = {}; - - less.modules.path = { - join: function() { - var parts = []; - for (i in arguments) { - parts = parts.concat(arguments[i].split(/\/|\\/)); - } - var result = []; - for (i in parts) { - var part = parts[i]; - if (part === '..' && result.length > 0) { - result.pop(); - } else if (part === '' && result.length > 0) { - // skip - } else if (part !== '.') { - if (part.slice(-1)==='\\' || part.slice(-1)==='/') { - part = part.slice(0, -1); - } - result.push(part); - } - } - return result.join('/'); - }, - dirname: function(p) { - var path = p.split('/'); - path.pop(); - return path.join('/'); - }, - basename: function(p, ext) { - var base = p.split('/').pop(); - if (ext) { - var index = base.lastIndexOf(ext); - if (base.length === index + ext.length) { - base = base.substr(0, index); - } - } - return base; - }, - extname: function(p) { - var index = p.lastIndexOf('.'); - return index > 0 ? p.substring(index) : ''; - } - }; - - less.modules.fs = { - readFileSync: function(name) { - // read a file into a byte array - var file = new java.io.File(name); - var stream = new java.io.FileInputStream(file); - var buffer = []; - var c; - while ((c = stream.read()) != -1) { - buffer.push(c); - } - stream.close(); - return { - length: buffer.length, - toString: function(enc) { - if (enc === 'base64') { - return encodeBase64Bytes(buffer); - } else if (enc) { - return java.lang.String["(byte[],java.lang.String)"](buffer, enc); - } else { - return java.lang.String["(byte[])"](buffer); - } - } - }; - } - }; - - less.encoder = { - encodeBase64: function(str) { - return encodeBase64String(str); - } - }; - - // --------------------------------------------------------------------------------------------- - // private helper functions - // --------------------------------------------------------------------------------------------- - - function encodeBase64Bytes(bytes) { - // requires at least a JRE Platform 6 (or JAXB 1.0 on the classpath) - return javax.xml.bind.DatatypeConverter.printBase64Binary(bytes) - } - function encodeBase64String(str) { - return encodeBase64Bytes(new java.lang.String(str).getBytes()); - } - -})(); - -var less, tree; - -// Node.js does not have a header file added which defines less -if (less === undefined) { - less = exports; - tree = require('./tree'); - less.mode = 'node'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `current` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // index of current chunk, in `input` - parser, - rootFilename = env && env.filename; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed around by reference. - if (!(env instanceof tree.parseEnv)) { - env = new tree.parseEnv(env); - } - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, currentFileInfo, importOptions, callback) { - var parserImports = this; - this.queue.push(path); - - var fileParsedFunc = function (e, root, fullPath) { - parserImports.queue.splice(parserImports.queue.indexOf(path), 1); // Remove the path from the queue - - var importedPreviously = fullPath in parserImports.files || fullPath === rootFilename; - - parserImports.files[fullPath] = root; // Store the root - - if (e && !parserImports.error) { parserImports.error = e; } - - callback(e, root, importedPreviously, fullPath); - }; - - if (less.Parser.importer) { - less.Parser.importer(path, currentFileInfo, fileParsedFunc, env); - } else { - less.Parser.fileLoader(path, currentFileInfo, function(e, contents, fullPath, newFileInfo) { - if (e) {fileParsedFunc(e); return;} - - var newEnv = new tree.parseEnv(env); - - newEnv.currentFileInfo = newFileInfo; - newEnv.processImports = false; - newEnv.contents[fullPath] = contents; - - if (currentFileInfo.reference || importOptions.reference) { - newFileInfo.reference = true; - } - - if (importOptions.inline) { - fileParsedFunc(null, contents, fullPath); - } else { - new(less.Parser)(newEnv).parse(contents, function (e, root) { - fileParsedFunc(e, root, fullPath); - }); - } - }, env); - } - } - }; - - function save() { temp = chunks[j], memo = i, current = i; } - function restore() { chunks[j] = temp, i = memo, current = i; } - - function sync() { - if (i > current) { - chunks[j] = chunks[j].slice(i - current); - current = i; - } - } - function isWhitespace(c) { - // Could change to \s? - var code = c.charCodeAt(0); - return code === 32 || code === 10 || code === 9; - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var match, length; - - // - // Non-terminal - // - if (tok instanceof Function) { - return tok.call(parser.parsers); - // - // Terminal - // - // Either match a single character in the input, - // or match a regexp in the current chunk (chunk[j]). - // - } else if (typeof(tok) === 'string') { - match = input.charAt(i) === tok ? tok : null; - length = 1; - sync (); - } else { - sync (); - - if (match = tok.exec(chunks[j])) { - length = match[0].length; - } else { - return null; - } - } - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - if (match) { - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - endIndex = i + chunks[j].length, - mem = i += length; - - while (i < endIndex) { - if (! isWhitespace(input.charAt(i))) { break; } - i++; - } - chunks[j] = chunks[j].slice(length + (i - mem)); - current = i; - - if (chunks[j].length === 0 && j < chunks.length - 1) { j++; } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - var result = $(arg); - if (! result) { - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } else { - return result; - } - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - return tok.test(chunks[j]); - } - } - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, inputStream) { - var n = index + 1, - line = null, - column = -1; - - while (--n >= 0 && inputStream.charAt(n) !== '\n') { - column++; - } - - if (typeof index === 'number') { - line = (inputStream.slice(0, index).match(/\n/g) || "").length; - } - - return { - line: line, - column: column - }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - callLine = e.call && getLocation(e.call, input).line, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = callLine + 1; - this.callExtract = lines[callLine]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - return parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // call `callback` when done. - // - parse: function (str, callback) { - var root, line, lines, error = null; - - i = j = current = furthest = 0; - input = str.replace(/\r\n/g, '\n'); - - // Remove potential UTF Byte Order Mark - input = input.replace(/^\uFEFF/, ''); - - parser.imports.contents[env.currentFileInfo.filename] = input; - - // Split the input into chunks. - chunks = (function (chunks) { - var j = 0, - skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\(\)\\])+/g, - comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, - string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g, - level = 0, - match, - chunk = chunks[0], - inParam; - - for (var i = 0, c, cc; i < input.length;) { - skip.lastIndex = i; - if (match = skip.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - } - } - c = input.charAt(i); - comment.lastIndex = string.lastIndex = i; - - if (match = string.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - - if (!inParam && c === '/') { - cc = input.charAt(i + 1); - if (cc === '/' || cc === '*') { - if (match = comment.exec(input)) { - if (match.index === i) { - i += match[0].length; - chunk.push(match[0]); - continue; - } - } - } - } - - switch (c) { - case '{': - if (!inParam) { - level++; - chunk.push(c); - break; - } - /* falls through */ - case '}': - if (!inParam) { - level--; - chunk.push(c); - chunks[++j] = chunk = []; - break; - } - /* falls through */ - case '(': - if (!inParam) { - inParam = true; - chunk.push(c); - break; - } - /* falls through */ - case ')': - if (inParam) { - inParam = false; - chunk.push(c); - break; - } - /* falls through */ - default: - chunk.push(c); - } - - i++; - } - if (level !== 0) { - error = new(LessError)({ - index: i-1, - type: 'Parse', - message: (level > 0) ? "missing closing `}`" : "missing opening `{`", - filename: env.currentFileInfo.filename - }, env); - } - - return chunks.map(function (c) { return c.join(''); }); - })([[]]); - - if (error) { - return callback(new(LessError)(error, env)); - } - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)([], $(this.parsers.primary)); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - return function (options, variables) { - options = options || {}; - var evaldRoot, - css, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, null, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var preEvalVisitors = [], - visitors = [ - new(tree.joinSelectorVisitor)(), - new(tree.processExtendsVisitor)(), - new(tree.toCSSVisitor)({compress: Boolean(options.compress)}) - ], i, root = this; - - if (options.plugins) { - for(i =0; i < options.plugins.length; i++) { - if (options.plugins[i].isPreEvalVisitor) { - preEvalVisitors.push(options.plugins[i]); - } else { - if (options.plugins[i].isPreVisitor) { - visitors.splice(0, 0, options.plugins[i]); - } else { - visitors.push(options.plugins[i]); - } - } - } - } - - for(i = 0; i < preEvalVisitors.length; i++) { - preEvalVisitors[i].run(root); - } - - evaldRoot = evaluate.call(root, evalEnv); - - for(i = 0; i < visitors.length; i++) { - visitors[i].run(evaldRoot); - } - - if (options.sourceMap) { - evaldRoot = new tree.sourceMapOutput( - { - writeSourceMap: options.writeSourceMap, - rootNode: evaldRoot, - contentsMap: parser.imports.contents, - sourceMapFilename: options.sourceMapFilename, - sourceMapURL: options.sourceMapURL, - outputFilename: options.sourceMapOutputFilename, - sourceMapBasepath: options.sourceMapBasepath, - sourceMapRootpath: options.sourceMapRootpath, - outputSourceFiles: options.outputSourceFiles, - sourceMapGenerator: options.sourceMapGenerator - }); - } - - css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits)}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.cleancss && less.mode === 'node') { - var CleanCSS = require('clean-css'), - cleancssOptions = options.cleancssOptions || {}; - - if (cleancssOptions.keepSpecialComments === undefined) { - cleancssOptions.keepSpecialComments = "*"; - } - cleancssOptions.processImport = false; - cleancssOptions.noRebase = true; - if (cleancssOptions.noAdvanced === undefined) { - cleancssOptions.noAdvanced = true; - } - - return new CleanCSS(cleancssOptions).minify(css); - } else if (options.compress) { - return css.replace(/(^(\s)+)|((\s)+$)/g, ""); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - var loc = getLocation(i, input); - lines = input.split('\n'); - line = loc.line + 1; - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: loc.column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - return callback(e); - } - else { - return callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - return finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var node, root = []; - - while ((node = $(this.extendRule) || $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || - $(this.mixin.call) || $(this.comment) || $(this.directive)) - || $(/^[\s\n]+/) || $(/^;+/)) { - node && root.push(node); - } - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') { return; } - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($(/^\/\/.*/), true, i, env.currentFileInfo); - } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { - return new(tree.Comment)(comment, false, i, env.currentFileInfo); - } - }, - - comments: function () { - var comment, comments = []; - - while(comment = $(this.comment)) { - comments.push(comment); - } - - return comments; - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++, e = true; } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; } - - e && $('~'); - - if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { - var color = tree.Color.fromKeyword(k); - if (color) { - return color; - } - return new(tree.Keyword)(k); - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) { return; } - - name = name[1]; - nameLC = name.toLowerCase(); - - if (nameLC === 'url') { return null; } - else { i += name.length; } - - if (nameLC === 'alpha') { - alpha_ret = $(this.alpha); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $('('); // Parse the '(' and consume whitespace. - - args = $(this.entities.arguments); - - if (! $(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (arg = $(this.entities.assignment) || $(this.expression)) { - args.push(arg); - if (! $(',')) { - break; - } - } - return args; - }, - literal: function () { - return $(this.entities.dimension) || - $(this.entities.color) || - $(this.entities.quoted) || - $(this.entities.unicodeDescriptor); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$(/^url\(/)) { - return; - } - - value = $(this.entities.quoted) || $(this.entities.variable) || - $(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expect(')'); - - /*jshint eqnull:true */ - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var curly, index = i; - - if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) { - return; - } - - if (value = $(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/)) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - if (ud = $(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/)) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '`') { return; } - if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) { - error("You are using JavaScript, which has been disabled."); - } - - if (e) { $('~'); } - - if (str = $(/^`([^`]*)`/)) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1]; } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList = []; - - if (!$(isRule ? /^&:extend\(/ : /^:extend\(/)) { return; } - - do { - option = null; - elements = []; - while (true) { - option = $(/^(all)(?=\s*(\)|,))/); - if (option) { break; } - e = $(this.element); - if (!e) { break; } - elements.push(e); - } - - option = option && option[1]; - - extendList.push(new(tree.Extend)(new(tree.Selector)(elements), option, index)); - - } while($(",")); - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var elements = [], e, c, args, index = i, s = input.charAt(i), important = false; - - if (s !== '.' && s !== '#') { return; } - - save(); // stop us absorbing part of an invalid selector - - while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) { - elements.push(new(tree.Element)(c, e, i, env.currentFileInfo)); - c = $('>'); - } - if ($('(')) { - args = this.mixin.args.call(this, true).args; - expect(')'); - } - - args = args || []; - - if ($(this.important)) { - important = true; - } - - if (elements.length > 0 && ($(';') || peek('}'))) { - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - - restore(); - }, - args: function (isCall) { - var expressions = [], argsSemiColon = [], isSemiColonSeperated, argsComma = [], expressionContainsNamed, name, nameLoop, value, arg, - returner = {args:null, variadic: false}; - while (true) { - if (isCall) { - arg = $(this.expression); - } else { - $(this.comments); - if (input.charAt(i) === '.' && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = $(this.entities.variable) || $(this.entities.literal) - || $(this.entities.keyword); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value.length == 1) { - val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(this.expression); - nameLoop = (name = val.name); - } else if (!isCall && $(/^\.{3}/)) { - returner.variadic = true; - if ($(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($(',')) { - continue; - } - - if ($(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) { - return; - } - - save(); - - if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) { - name = match[1]; - - var argInfo = this.mixin.args.call(this, false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$(')')) { - furthest = i; - restore(); - } - - $(this.comments); - - if ($(/^when/)) { // Guard - cond = expect(this.conditions, 'expected condition'); - } - - ruleset = $(this.block); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || - $(this.entities.call) || $(this.entities.keyword) ||$(this.entities.javascript) || - $(this.comment); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $(';') || peek('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $(/^\(opacity=/i)) { return; } - if (value = $(/^\d+/) || $(this.entities.variable)) { - expect(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, c, v; - - c = $(this.combinator); - - e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $('*') || $('&') || $(this.attribute) || $(/^\([^()@]+\)/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly); - - if (! e) { - if ($('(')) { - if ((v = ($(this.selector))) && - $(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, i, env.currentFileInfo); } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|') { - i++; - while (input.charAt(i).match(/\s/)) { i++; } - return new(tree.Combinator)(c); - } else if (input.charAt(i - 1).match(/\s/)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - // - // A CSS selector (see selector below) - // with less extensions e.g. the ability to extend and guard - // - lessSelector: function () { - return this.selector(true); - }, - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function (isLess) { - var e, elements = [], c, extend, extendList = [], when, condition; - - while ((isLess && (extend = $(this.extend))) || (isLess && (when = $(/^when/))) || (e = $(this.element))) { - if (when) { - condition = expect(this.conditions, 'expected condition'); - } else if (condition) { - error("CSS guard can only be used at the end of selector"); - } else if (extend) { - extendList.push.apply(extendList, extend); - } else { - if (extendList.length) { - error("Extend can only be used at the end of selector"); - } - c = input.charAt(i); - elements.push(e); - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { - break; - } - } - - if (elements.length > 0) { return new(tree.Selector)(elements, extendList, condition, i, env.currentFileInfo); } - if (extendList.length) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - var key, val, op; - - if (! $('[')) { return; } - - if (!(key = $(this.entities.variableCurly))) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - if ((op = $(/^[|~*$^]?=/))) { - val = $(this.entities.quoted) || $(/^[0-9]+%/) || $(/^[\w-]+/) || $(this.entities.variableCurly); - } - - expect(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($('{') && (content = $(this.primary)) && $('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors = [], s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - while (s = $(this.lessSelector)) { - selectors.push(s); - $(this.comments); - if (! $(',')) { break; } - if (s.condition) { - error("Guards are only currently allowed on a single selector."); - } - $(this.comments); - } - - if (selectors.length > 0 && (rules = $(this.block))) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) { - ruleset.debugInfo = debugInfo; - } - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, c = input.charAt(i), important, merge = false; - save(); - - if (c === '.' || c === '#' || c === '&') { return; } - - if (name = $(this.variable) || $(this.ruleProperty)) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || (name.charAt(0) === '@')) ? - ($(this.value) || $(this.anonymousValue)) : - ($(this.anonymousValue) || $(this.value)); - - - important = $(this.important); - if (name[name.length-1] === "+") { - merge = true; - name = name.substr(0, name.length - 1); - } - - if (value && $(this.end)) { - return new (tree.Rule)(name, value, important, merge, memo, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } - }, - anonymousValue: function () { - var match; - if (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j])) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $(/^@import?\s+/); - - var options = (dir ? $(this.importOptions) : null) || {}; - - if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) { - features = $(this.mediaFeatures); - if ($(';')) { - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $('(')) { return null; } - do { - if (o = $(this.importOption)) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $(',')) { break; } - } - } while (o); - expect(')'); - return options; - }, - - importOption: function() { - var opt = $(/^(less|css|multiple|once|inline|reference)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var e, p, nodes = []; - - do { - if (e = ($(this.entities.keyword) || $(this.entities.variable))) { - nodes.push(e); - } else if ($('(')) { - p = $(this.property); - e = $(this.value); - if ($(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null; } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var e, features = []; - - do { - if (e = $(this.mediaFeature)) { - features.push(e); - if (! $(',')) { break; } - } else if (e = $(this.entities.variable)) { - features.push(e); - if (! $(',')) { break; } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - if ($(/^@media/)) { - features = $(this.mediaFeatures); - - if (rules = $(this.block)) { - media = new(tree.Media)(rules, features, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - media.debugInfo = debugInfo; - } - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var name, value, rules, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression, identifier; - - if (input.charAt(i) !== '@') { return; } - - if (value = $(this['import']) || $(this.media)) { - return value; - } - - save(); - - name = $(/^@[a-z-]+/); - - if (!name) { return; } - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@host": - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - identifier = ($(/^[^{]+/) || '').trim(); - if (identifier) { - name += " " + identifier; - } - } - - if (hasBlock) - { - if (rules = $(this.block)) { - return new(tree.Directive)(name, rules, i, env.currentFileInfo); - } - } else { - if ((value = hasExpression ? $(this.expression) : $(this.entity)) && $(';')) { - var directive = new(tree.Directive)(name, value, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = []; - - while (e = $(this.expression)) { - expressions.push(e); - if (! $(',')) { break; } - } - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($('(')) { - if (a = $(this.addition)) { - e = new(tree.Expression)([a]); - expect(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced; - if (m = $(this.operand)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while (!peek(/^\/[*\/]/) && (op = ($('/') || $('*')))) { - if (a = $(this.operand)) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } else { - break; - } - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - if (m = $(this.multiplication)) { - isSpaced = isWhitespace(input.charAt(i - 1)); - while ((op = $(/^[-+]\s+/) || (!isSpaced && ($('+') || $('-')))) && - (a = $(this.multiplication))) { - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input.charAt(i - 1)); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - if (a = $(this.condition)) { - while (peek(/^,\s*(not\s*)?\(/) && $(',') && (b = $(this.condition))) { - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var a, b, c, op, index = i, negate = false; - - if ($(/^not/)) { negate = true; } - expect('('); - if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - if (op = $(/^(?:>=|<=|=<|[<=>])/)) { - if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expect(')'); - return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var negate, p = input.charAt(i + 1); - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-'); } - var o = $(this.sub) || $(this.entities.dimension) || - $(this.entities.color) || $(this.entities.variable) || - $(this.entities.call); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var e, delim, entities = []; - - while (e = $(this.addition) || $(this.entity)) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/) && (delim = $('/'))) { - entities.push(new(tree.Anonymous)(delim)); - } - } - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name; - - if (name = $(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/)) { - return name[1]; - } - }, - ruleProperty: function () { - var name; - - if (name = $(/^(\*?-?[_a-zA-Z0-9-]+)\s*(\+?)\s*:/)) { - return name[1] + (name[2] || ""); - } - } - } - }; -}; - - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 255); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; } - else if (h * 2 < 1) { return m2; } - else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; } - else { return m1; } - } - - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - // filter: saturate(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if ((color.luma() * color.alpha) < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - /*jshint loopfunc:true */ - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - if(!(val instanceof tree.Dimension)) { - throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") }; - } - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return this._math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _math: function (fn, unit, n) { - if (n instanceof tree.Dimension) { - /*jshint eqnull:true */ - return new(tree.Dimension)(fn(parseFloat(n.value)), unit == null ? n.unit : unit); - } else if (typeof(n) === 'number') { - return fn(n); - } else { - throw { type: "Argument", message: "argument must be a number" }; - } - }, - _minmax: function (isMin, args) { - args = Array.prototype.slice.call(args); - switch(args.length) { - case 0: throw { type: "Argument", message: "one or more arguments required" }; - case 1: return args[0]; - } - var i, j, current, currentUnified, referenceUnified, unit, - order = [], // elems only contains original argument values. - values = {}; // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - for (i = 0; i < args.length; i++) { - current = args[i]; - if (!(current instanceof tree.Dimension)) { - order.push(current); - continue; - } - currentUnified = current.unify(); - unit = currentUnified.unit.toString(); - j = values[unit]; - if (j === undefined) { - values[unit] = order.length; - order.push(current); - continue; - } - referenceUnified = order[j].unify(); - if ( isMin && currentUnified.value < referenceUnified.value || - !isMin && currentUnified.value > referenceUnified.value) { - order[j] = current; - } - } - if (order.length == 1) { - return order[0]; - } - args = order.map(function (a) { return a.toCSS(this.env); }) - .join(this.env.compress ? "," : ", "); - return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")"); - }, - min: function () { - return this._minmax(true, arguments); - }, - max: function () { - return this._minmax(false, arguments); - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - var colorCandidate = n.value, - returnColor; - returnColor = tree.Color.fromKeyword(colorCandidate); - if (returnColor) { - return returnColor; - } - if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) { - return new(tree.Color)(colorCandidate.slice(1)); - } - throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" }; - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - return Array.isArray(values.value) - ? values.value[index] : Array(values)[index]; - }, - length: function(values) { - var n = Array.isArray(values.value) ? values.value.length : 1; - return new tree.Dimension(n); - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require('fs'), - path = require('path'), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) { mimetype += ';base64'; } - } - else { - useBase64 = /;base64$/.test(mimetype); - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "'data:" + mimetype + ',' + buf + "'"; - return new(tree.URL)(new(tree.Anonymous)(uri)); - }, - - "svg-gradient": function(direction) { - - function throwArgumentDescriptor() { - throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" }; - } - - if (arguments.length < 3) { - throwArgumentDescriptor(); - } - var stops = Array.prototype.slice.call(arguments, 1), - gradientDirectionSvg, - gradientType = "linear", - rectangleDimension = 'x="0" y="0" width="1" height="1"', - useBase64 = true, - renderEnv = {compress: false}, - returner, - directionValue = direction.toCSS(renderEnv), - i, color, position, positionValue, alpha; - - switch (directionValue) { - case "to bottom": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - gradientType = "radial"; - gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" }; - } - returner = '' + - '' + - '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>'; - - for (i = 0; i < stops.length; i+= 1) { - if (stops[i].value) { - color = stops[i].value[0]; - position = stops[i].value[1]; - } else { - color = stops[i]; - position = undefined; - } - - if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) { - throwArgumentDescriptor(); - } - positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%"; - alpha = color.alpha; - returner += ''; - } - returner += '' + - ''; - - if (useBase64) { - try { - returner = require('./encoder').encodeBase64(returner); // TODO browser implementation - } catch(e) { - useBase64 = false; - } - } - - returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'"; - return new(tree.URL)(new(tree.Anonymous)(returner)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -var mathFunctions = [{name:"ceil"}, {name:"floor"}, {name: "sqrt"}, {name:"abs"}, - {name:"tan", unit: ""}, {name:"sin", unit: ""}, {name:"cos", unit: ""}, - {name:"atan", unit: "rad"}, {name:"asin", unit: "rad"}, {name:"acos", unit: "rad"}], - createMathFunction = function(name, unit) { - return function(n) { - /*jshint eqnull:true */ - if (unit != null) { - n = n.unify(); - } - return this._math(Math[name], unit, n); - }; - }; - -for(var i = 0; i < mathFunctions.length; i++) { - tree.functions[mathFunctions[i].name] = createMathFunction(mathFunctions[i].name, mathFunctions[i].unit); -} - -// Color Blending -// ref: http://www.w3.org/TR/compositing-1 - -function colorBlend(mode, color1, color2) { - var ab = color1.alpha, cb, // backdrop - as = color2.alpha, cs, // source - ar, cr, r = []; // result - - ar = as + ab * (1 - as); - for (var i = 0; i < 3; i++) { - cb = color1.rgb[i] / 255; - cs = color2.rgb[i] / 255; - cr = mode(cb, cs); - if (ar) { - cr = (as * cs + ab * (cb - - as * (cb + cs - cr))) / ar; - } - r[i] = cr * 255; - } - - return new(tree.Color)(r, ar); -} - -var colorBlendMode = { - multiply: function(cb, cs) { - return cb * cs; - }, - screen: function(cb, cs) { - return cb + cs - cb * cs; - }, - overlay: function(cb, cs) { - cb *= 2; - return (cb <= 1) - ? colorBlendMode.multiply(cb, cs) - : colorBlendMode.screen(cb - 1, cs); - }, - softlight: function(cb, cs) { - var d = 1, e = cb; - if (cs > 0.5) { - e = 1; - d = (cb > 0.25) ? Math.sqrt(cb) - : ((16 * cb - 12) * cb + 4) * cb; - } - return cb - (1 - 2 * cs) * e * (d - cb); - }, - hardlight: function(cb, cs) { - return colorBlendMode.overlay(cs, cb); - }, - difference: function(cb, cs) { - return Math.abs(cb - cs); - }, - exclusion: function(cb, cs) { - return cb + cs - 2 * cb * cs; - }, - - // non-w3c functions: - average: function(cb, cs) { - return (cb + cs) / 2; - }, - negation: function(cb, cs) { - return 1 - Math.abs(cb + cs - 1); - } -}; - -function colorBlendInit() { - for (var f in colorBlendMode) { - tree.functions[f] = colorBlend.bind(null, colorBlendMode[f]); - } -} colorBlendInit(); - -// ~ End of Color Blending - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); - -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); - -(function (tree) { - -tree.debugInfo = function(env, ctx, lineSeperator) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:/\\])/g, function (a) { - if (a == '\\') { - a = '\/'; - } - return '\\' + a; - }) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - if (r = fun.call(obj, obj[i])) { return r; } - } - return null; -}; - -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false); }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -tree.toCSS = function (env) { - var strs = []; - this.genCSS(env, { - add: function(chunk, fileInfo, index) { - strs.push(chunk); - }, - isEmpty: function () { - return strs.length === 0; - } - }); - return strs.join(''); -}; - -tree.outputRuleset = function (env, output, rules) { - output.add((env.compress ? '{' : ' {\n')); - env.tabLevel = (env.tabLevel || 0) + 1; - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "); - for(var i = 0; i < rules.length; i++) { - output.add(tabRuleStr); - rules[i].genCSS(env, output); - output.add(env.compress ? '' : '\n'); - } - env.tabLevel--; - output.add(tabSetStr + "}"); -}; - -})(require('./tree')); - -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } - return this; - }, - genCSS: function (env, output) { - output.add("alpha(opacity="); - - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - - output.add(")"); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Anonymous = function (string, index, currentFileInfo, mapLines) { - this.value = string.value || string; - this.index = index; - this.mapLines = mapLines; - this.currentFileInfo = currentFileInfo; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - eval: function () { return this; }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - }, - genCSS: function (env, output) { - output.add(this.value, this.currentFileInfo, this.index, this.mapLines); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - }, - genCSS: function (env, output) { - output.add(this.key + '='); - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - this.args = visitor.visit(this.args); - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - /*jshint eqnull:true */ - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - return new tree.Call(this.name, args, this.index, this.currentFileInfo); - }, - - genCSS: function (env, output) { - output.add(this.name + "(", this.currentFileInfo, this.index); - - for(var i = 0; i < this.args.length; i++) { - this.args[i].genCSS(env, output); - if (i + 1 < this.args.length) { - output.add(", "); - } - } - - output.add(")"); - }, - - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; - -var transparentKeyword = "transparent"; - -tree.Color.prototype = { - type: "Color", - eval: function () { return this; }, - luma: function () { return (0.2126 * this.rgb[0] / 255) + (0.7152 * this.rgb[1] / 255) + (0.0722 * this.rgb[2] / 255); }, - - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress; - - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - if (this.alpha < 1.0) { - if (this.alpha === 0 && this.isTransparentKeyword) { - return transparentKeyword; - } - return "rgba(" + this.rgb.map(function (c) { - return Math.round(c); - }).concat(this.alpha).join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.toRGB(); - - if (compress) { - var splitcolor = color.split(''); - - // Convert color to short format - if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) { - color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5]; - } - } - - return color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var rgb = []; - var alpha = this.alpha * (1 - other.alpha) + other.alpha; - for (var c = 0; c < 3; c++) { - rgb[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(rgb, alpha); - }, - - toRGB: function () { - return '#' + this.rgb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - var argb = [Math.round(this.alpha * 255)].concat(this.rgb); - return '#' + argb.map(function (i) { - i = Math.round(i); - i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); - return i.length === 1 ? '0' + i : i; - }).join(''); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - -tree.Color.fromKeyword = function(keyword) { - if (tree.colors.hasOwnProperty(keyword)) { - // detect named color - return new(tree.Color)(tree.colors[keyword].slice(1)); - } - if (keyword === transparentKeyword) { - var transparent = new(tree.Color)([0, 0, 0], 0); - transparent.isTransparentKeyword = true; - return transparent; - } -}; - - -})(require('../tree')); - -(function (tree) { - -tree.Comment = function (value, silent, index, currentFileInfo) { - this.value = value; - this.silent = !!silent; - this.currentFileInfo = currentFileInfo; -}; -tree.Comment.prototype = { - type: "Comment", - genCSS: function (env, output) { - if (this.debugInfo) { - output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index); - } - output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n - }, - toCSS: tree.toCSS, - isSilent: function(env) { - var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced), - isCompressed = env.compress && !this.value.match(/^\/\*!/); - return this.silent || isReference || isCompressed; - }, - eval: function () { return this; }, - markReferenced: function () { - this.isReferenced = true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<' || op === '<='; - case 0: return op === '=' || op === '>=' || op === '=<' || op === '<='; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); - -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - genCSS: function (env, output) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = this.value, - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && this.unit.isLength()) { - output.add(strValue); - return; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - output.add(strValue); - this.unit.genCSS(env, output); - }, - toCSS: tree.toCSS, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - /*jshint noempty:false */ - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a = this.unify(), b = other.unify(), - aValue = a.value, bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - if (!b.unit.isEmpty() && a.unit.compare(b.unit) !== 0) { - return -1; - } - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'm', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, targetUnit, derivedConversions = {}, applyUnit; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - applyUnit = function (atomicUnit, denominator) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(applyUnit); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - genCSS: function (env, output) { - if (this.numerator.length >= 1) { - output.add(this.numerator[0]); - } else - if (this.denominator.length >= 1) { - output.add(this.denominator[0]); - } else - if ((!env || !env.strictUnits) && this.backupUnit) { - output.add(this.backupUnit); - } - }, - toCSS: tree.toCSS, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isLength: function () { - return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/)); - }, - - isEmpty: function () { - return this.numerator.length === 0 && this.denominator.length === 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length === 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, result = {}, mapUnit; - - mapUnit = function (atomicUnit) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }; - - for (var groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(mapUnit); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Directive = function (name, value, index, currentFileInfo) { - this.name = name; - - if (Array.isArray(value)) { - this.rules = [new(tree.Ruleset)([], value)]; - this.rules[0].allowImports = true; - } else { - this.value = value; - } - this.currentFileInfo = currentFileInfo; - -}; -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - this.rules = visitor.visit(this.rules); - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name, this.currentFileInfo, this.index); - if (this.rules) { - tree.outputRuleset(env, output, this.rules); - } else { - output.add(' '); - this.value.genCSS(env, output); - output.add(';'); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var evaldDirective = this; - if (this.rules) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name, null, this.index, this.currentFileInfo); - evaldDirective.rules = [this.rules[0].eval(env)]; - evaldDirective.rules[0].root = true; - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - markReferenced: function () { - var i, rules; - this.isReferenced = true; - if (this.rules) { - rules = this.rules[0].rules; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Element = function (combinator, value, index, currentFileInfo) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - this.combinator = visitor.visit(this.combinator); - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index, - this.currentFileInfo); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env), this.currentFileInfo, this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value === '' && this.combinator.value.charAt(0) === '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - _outputMap: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : ' + ', - '~' : ' ~ ', - '>' : ' > ', - '|' : '|' - }, - _outputMapCompressed: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : '+', - '~' : '~', - '>' : '>', - '|' : '|' - }, - genCSS: function (env, output) { - output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - genCSS: function (env, output) { - for(var i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i + 1 < this.value.length) { - output.add(" "); - } - } - }, - toCSS: tree.toCSS, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i, - selectorElements; - - for(i = 0; i < selectors.length; i++) { - selectorElements = selectors[i].elements; - // duplicate the logic in genCSS function inside the selector node. - // future TODO - move both logics into the selector joiner visitor - if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") { - selectorElements[0].combinator.value = ' '; - } - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); - -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined || this.options.inline) { - this.css = !this.options.less || this.options.inline; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.path = visitor.visit(this.path); - if (!this.options.inline) { - this.root = visitor.visit(this.root); - } - }, - genCSS: function (env, output) { - if (this.css) { - output.add("@import ", this.currentFileInfo, this.index); - this.path.genCSS(env, output); - if (this.features) { - output.add(" "); - this.features.genCSS(env, output); - } - output.add(';'); - } - }, - toCSS: tree.toCSS, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - - if (!(path instanceof tree.URL)) { - if (rootpath) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath +pathValue; - } - } - path.value = env.normalizePath(path.value); - } - - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { return []; } - - if (this.options.inline) { - //todo needs to reference css file not import - var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true); - return this.features ? new(tree.Media)([contents], this.features.value) : [contents]; - } else if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" , - index: this.index }; - } - - for (var k in env.frames[0].variables()) { - /*jshint loopfunc:true */ - context[k.slice(1)] = { - value: env.frames[0].variables()[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message.replace(/["]/g, "'") + "'" , - index: this.index }; - } - if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Keyword = function (value) { this.value = value; }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); - -(function (tree) { - -tree.Media = function (value, features, index, currentFileInfo) { - this.index = index; - this.currentFileInfo = currentFileInfo; - - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.rules = [new(tree.Ruleset)(selectors, value)]; - this.rules[0].allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - this.features = visitor.visit(this.features); - this.rules = visitor.visit(this.rules); - }, - genCSS: function (env, output) { - output.add('@media ', this.currentFileInfo, this.index); - this.features.genCSS(env, output); - tree.outputRuleset(env, output, this.rules); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)([], [], this.index, this.currentFileInfo); - if(this.debugInfo) { - this.rules[0].debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.rules[0]); - media.rules = [this.rules[0].eval(env)]; - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env); - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', this.index, this.currentFileInfo); - return [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)]; - }, - markReferenced: function () { - var i, rules = this.rules[0].rules; - this.isReferenced = true; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])]; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = args; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - this.arguments = visitor.visit(this.arguments); - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - if (mixin.matchArgs(args, env)) { - if (!mixin.matchCondition || mixin.matchCondition(args, env)) { - try { - if (!(mixin instanceof tree.mixin.Definition)) { - mixin = new tree.mixin.Definition("", [], mixin.rules, null, false); - mixin.originalRuleset = mixins[m].originalRuleset || mixins[m]; - } - //if (this.important) { - // isImportant = env.isImportant; - // env.isImportant = true; - //} - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - //if (this.important) { - // env.isImportant = isImportant; - //} - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - match = true; - } - } - if (match) { - if (!this.currentFileInfo || !this.currentFileInfo.reference) { - for (i = 0; i < rules.length; i++) { - rule = rules[i]; - if (rule.markReferenced) { - rule.markReferenced(); - } - } - } - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + - this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")`", - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1; } - else { return count; } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - this.params = visitor.visit(this.params); - this.rules = visitor.visit(this.rules); - this.condition = visitor.visit(this.condition); - }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - /*jshint boss:true */ - var frame = new(tree.Ruleset)(null, []), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.rules.unshift(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) { continue; } - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.rules.unshift(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - rules, ruleset; - - frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules); - ruleset.originalRuleset = this; - ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames))); - if (important) { - ruleset = this.parent.makeImportant.apply(ruleset); - } - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] // the parameter variables - .concat(this.frames) // the parent namespace/mixin frames - .concat(env.frames)))) { // the current environment frames - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (! this.variadic) { - if (argsLength < this.required) { return false; } - if (argsLength > this.params.length) { return false; } - } else { - if (argsLength < (this.required - 1)) { return false; } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('-'); - this.value.genCSS(env, output); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env); - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - a = a.toColor(); - } - if (b instanceof tree.Dimension && a instanceof tree.Color) { - b = b.toColor(); - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - genCSS: function (env, output) { - this.operands[0].genCSS(env, output); - if (this.isSpaced) { - output.add(" "); - } - output.add(this.op); - if (this.isSpaced) { - output.add(" "); - } - this.operands[1].genCSS(env, output); - }, - toCSS: tree.toCSS -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('('); - this.value.genCSS(env, output); - output.add(')'); - }, - toCSS: tree.toCSS, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - genCSS: function (env, output) { - if (!this.escaped) { - output.add(this.quote, this.currentFileInfo, this.index); - } - output.add(this.value); - if (!this.escaped) { - output.add(this.quote); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.merge = merge; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - this.variable = (name.charAt(0) === '@'); -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index); - try { - this.value.genCSS(env, output); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index); - }, - toCSS: tree.toCSS, - eval: function (env) { - var strictMathBypass = false; - if (this.name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - return new(tree.Rule)(this.name, - this.value.eval(env), - this.important, - this.merge, - this.index, this.currentFileInfo, this.inline); - } - catch(e) { - if (e.index === undefined) { - e.index = this.index; - } - throw e; - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.merge, - this.index, this.currentFileInfo, this.inline); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - if (this.paths) { - for(var i = 0; i < this.paths.length; i++) { - this.paths[i] = visitor.visit(this.paths[i]); - } - } else { - this.selectors = visitor.visit(this.selectors); - } - this.rules = visitor.visit(this.rules); - }, - eval: function (env) { - var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env); }); - var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); - var rules; - var rule; - var i; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - env.frames.unshift(ruleset); - - // currrent selectors - if (!env.selectors) { - env.selectors = []; - } - env.selectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - for (i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Definition) { - ruleset.rules[i].frames = env.frames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (i = 0; i < ruleset.rules.length; i++) { - if (ruleset.rules[i] instanceof tree.mixin.Call) { - /*jshint loopfunc:true */ - rules = ruleset.rules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - ruleset.rules.splice.apply(ruleset.rules, [i, 1].concat(rules)); - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (i = 0; i < ruleset.rules.length; i++) { - rule = ruleset.rules[i]; - - if (! (rule instanceof tree.mixin.Definition)) { - ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; - } - } - - // Pop the stack - env.frames.shift(); - env.selectors.shift(); - - if (env.mediaBlocks) { - for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var i, rules; - for (i = 0; i < this.rules.length; i++) { - if (this.rules[i] instanceof tree.Import) { - rules = this.rules[i].eval(env); - if (typeof rules.length === "number") { - this.rules.splice.apply(this.rules, [i, 1].concat(rules)); - i+= rules.length-1; - } else { - this.rules.splice(i, 1, rules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - matchCondition: function (args, env) { - var lastSelector = this.selectors[this.selectors.length-1]; - if (lastSelector.condition && - !lastSelector.condition.eval( - new(tree.evalEnv)(env, - env.frames))) { - return false; - } - return true; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (this._variables) { return this._variables; } - else { - return this._variables = this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - return this.rules.filter(function (r) { - return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); - }); - }, - find: function (selector, self) { - self = self || this; - var rules = [], match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key]; } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - if (match = selector.match(rule.selectors[j])) { - if (selector.elements.length > match) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(match)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - return this._lookups[key] = rules; - }, - genCSS: function (env, output) { - var i, j, - ruleNodes = [], - rulesetNodes = [], - debugInfo, // Line number debugging - rule, - firstRuleset = true, - path; - - env.tabLevel = (env.tabLevel || 0); - - if (!this.root) { - env.tabLevel++; - } - - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "); - - for (i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - if (rule.rules || (rule instanceof tree.Media) || rule instanceof tree.Directive || (this.root && rule instanceof tree.Comment)) { - rulesetNodes.push(rule); - } else { - ruleNodes.push(rule); - } - } - - // If this is the root node, we don't render - // a selector, or {}. - if (!this.root) { - debugInfo = tree.debugInfo(env, this, tabSetStr); - - if (debugInfo) { - output.add(debugInfo); - output.add(tabSetStr); - } - - for(i = 0; i < this.paths.length; i++) { - path = this.paths[i]; - env.firstSelector = true; - for(j = 0; j < path.length; j++) { - path[j].genCSS(env, output); - env.firstSelector = false; - } - if (i + 1 < this.paths.length) { - output.add(env.compress ? ',' : (',\n' + tabSetStr)); - } - } - - output.add((env.compress ? '{' : ' {\n') + tabRuleStr); - } - - // Compile rules and rulesets - for (i = 0; i < ruleNodes.length; i++) { - rule = ruleNodes[i]; - - // @page{ directive ends up with root elements inside it, a mix of rules and rulesets - // In this instance we do not know whether it is the last property - if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) { - env.lastRule = true; - } - - if (rule.genCSS) { - rule.genCSS(env, output); - } else if (rule.value) { - output.add(rule.value.toString()); - } - - if (!env.lastRule) { - output.add(env.compress ? '' : ('\n' + tabRuleStr)); - } else { - env.lastRule = false; - } - } - - if (!this.root) { - output.add((env.compress ? '}' : '\n' + tabSetStr + '}')); - env.tabLevel--; - } - - for (i = 0; i < rulesetNodes.length; i++) { - if (ruleNodes.length && firstRuleset) { - output.add((env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr)); - } - if (!firstRuleset) { - output.add((env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr)); - } - firstRuleset = false; - rulesetNodes[i].genCSS(env, output); - } - - if (!output.isEmpty() && !env.compress && this.firstRoot) { - output.add('\n'); - } - }, - - toCSS: tree.toCSS, - - markReferenced: function () { - for (var s = 0; s < this.selectors.length; s++) { - this.selectors[s].markReferenced(); - } - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for (i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for (j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length === 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', 0, el.index, el.currentFileInfo)); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for (k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = selector.createDerived([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for (i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length === 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for (i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); - -(function (tree) { - -tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) { - this.elements = elements; - this.extendList = extendList || []; - this.condition = condition; - this.currentFileInfo = currentFileInfo || {}; - this.isReferenced = isReferenced; - if (!condition) { - this.evaldCondition = true; - } -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - this.elements = visitor.visit(this.elements); - this.extendList = visitor.visit(this.extendList); - this.condition = visitor.visit(this.condition); - }, - createDerived: function(elements, extendList, evaldCondition) { - /*jshint eqnull:true */ - evaldCondition = evaldCondition != null ? evaldCondition : this.evaldCondition; - var newSelector = new(tree.Selector)(elements, extendList || this.extendList, this.condition, this.index, this.currentFileInfo, this.isReferenced); - newSelector.evaldCondition = evaldCondition; - return newSelector; - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - oelements, olen, max, i; - - oelements = other.elements.slice( - (other.elements.length && other.elements[0].value === "&") ? 1 : 0); - olen = oelements.length; - max = Math.min(len, olen); - - if (olen === 0 || len < olen) { - return 0; - } else { - for (i = 0; i < max; i++) { - if (elements[i].value !== oelements[i].value) { - return 0; - } - } - } - return max; // return number of matched selectors - }, - eval: function (env) { - var evaldCondition = this.condition && this.condition.eval(env); - - return this.createDerived(this.elements.map(function (e) { - return e.eval(env); - }), this.extendList.map(function(extend) { - return extend.eval(env); - }), evaldCondition); - }, - genCSS: function (env, output) { - var i, element; - if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") { - output.add(' ', this.currentFileInfo, this.index); - } - if (!this._css) { - //TODO caching? speed comparison? - for(i = 0; i < this.elements.length; i++) { - element = this.elements[i]; - element.genCSS(env, output); - } - } - }, - toCSS: tree.toCSS, - markReferenced: function () { - this.isReferenced = true; - }, - getIsReferenced: function() { - return !this.currentFileInfo.reference || this.isReferenced; - }, - getIsOutput: function() { - return this.evaldCondition; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - eval: function () { return this; } -}; - -})(require('../tree')); - -(function (tree) { - -tree.URL = function (val, currentFileInfo) { - this.value = val; - this.currentFileInfo = currentFileInfo; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add("url("); - this.value.genCSS(env, output); - output.add(")"); - }, - toCSS: tree.toCSS, - eval: function (ctx) { - var val = this.value.eval(ctx), rootpath; - - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - val.value = ctx.normalizePath(val.value); - - return new(tree.URL)(val, null); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - genCSS: function (env, output) { - var i; - for(i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i+1 < this.value.length) { - output.add((env && env.compress) ? ',' : ', '); - } - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { - this.name = name; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, v, name = this.name; - - if (name.indexOf('@@') === 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - if (variable = tree.find(env.frames, function (frame) { - if (v = frame.variable(name)) { - return v.value.eval(env); - } - })) { - this.evaluating = false; - return variable; - } - else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); - -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // browser-only, contents of all the files - 'relativeUrls', // option - whether to adjust URL's to be relative - 'rootpath', // option - rootpath to append to URL's - 'strictImports', // option - - 'insecure', // option - whether to allow imports from insecure ssl hosts - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true - 'mime', // browser only - mime type for sheet import - 'useFileCache', // browser only - whether to use the per file session cache - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' - absolute path to the entry file - // 'reference' - whether the file should not be output and only output parts that are referenced - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits', // whether units need to evaluate correctly - 'cleancss', // whether to compress with clean-css - 'sourceMap', // whether to output a source map - 'importMultiple'// whether we are currently importing multiple copies - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - tree.evalEnv.prototype.normalizePath = function( path ) { - var - segments = path.split("/").reverse(), - segment; - - path = []; - while (segments.length !== 0 ) { - segment = segments.pop(); - switch( segment ) { - case ".": - break; - case "..": - if ((path.length === 0) || (path[path.length - 1] === "..")) { - path.push( segment ); - } else { - path.pop(); - } - break; - default: - path.push( segment ); - break; - } - } - - return path.join("/"); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.visitor = function(implementation) { - this._implementation = implementation; - }; - - tree.visitor.prototype = { - visit: function(node) { - - if (node instanceof Array) { - return this.visitArray(node); - } - - if (!node || !node.type) { - return node; - } - - var funcName = "visit" + node.type, - func = this._implementation[funcName], - visitArgs, newNode; - if (func) { - visitArgs = {visitDeeper: true}; - newNode = func.call(this._implementation, node, visitArgs); - if (this._implementation.isReplacing) { - node = newNode; - } - } - if ((!visitArgs || visitArgs.visitDeeper) && node && node.accept) { - node.accept(this); - } - funcName = funcName + "Out"; - if (this._implementation[funcName]) { - this._implementation[funcName](node); - } - return node; - }, - visitArray: function(nodes) { - var i, newNodes = []; - for(i = 0; i < nodes.length; i++) { - var evald = this.visit(nodes[i]); - if (evald instanceof Array) { - evald = this.flatten(evald); - newNodes = newNodes.concat(evald); - } else { - newNodes.push(evald); - } - } - if (this._implementation.isReplacing) { - return newNodes; - } - return nodes; - }, - doAccept: function (node) { - node.accept(this); - }, - flatten: function(arr, master) { - return arr.reduce(this.flattenReduce.bind(this), master || []); - }, - flattenReduce: function(sum, element) { - if (element instanceof Array) { - sum = this.flatten(element, sum); - } else { - sum.push(element); - } - return sum; - } - }; - -})(require('./tree')); -(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode, - inlineCSS = importNode.options.inline; - - if (!importNode.css || inlineCSS) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - - if (importNode.options.multiple) { - env.importMultiple = true; - } - - this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, imported, fullPath) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - - if (imported && !env.importMultiple) { importNode.skip = imported; } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - importNode.importedFilename = fullPath; - if (!inlineCSS && !importNode.skip) { - new(tree.importVisitor)(importVisitor._importer, subFinish, env) - .run(root); - return; - } - } - - subFinish(); - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree')); -(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - var paths = []; - this.contexts.push(paths); - - if (! rulesetNode.root) { - rulesetNode.selectors = rulesetNode.selectors.filter(function(selector) { return selector.getIsOutput(); }); - if (rulesetNode.selectors.length === 0) { - rulesetNode.rules.length = 0; - } - rulesetNode.joinSelectors(paths, context, rulesetNode.selectors); - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree')); -(function (tree) { - tree.toCSSVisitor = function(env) { - this._visitor = new tree.visitor(this); - this._env = env; - }; - - tree.toCSSVisitor.prototype = { - isReplacing: true, - run: function (root) { - return this._visitor.visit(root); - }, - - visitRule: function (ruleNode, visitArgs) { - if (ruleNode.variable) { - return []; - } - return ruleNode; - }, - - visitMixinDefinition: function (mixinNode, visitArgs) { - return []; - }, - - visitExtend: function (extendNode, visitArgs) { - return []; - }, - - visitComment: function (commentNode, visitArgs) { - if (commentNode.isSilent(this._env)) { - return []; - } - return commentNode; - }, - - visitMedia: function(mediaNode, visitArgs) { - mediaNode.accept(this._visitor); - visitArgs.visitDeeper = false; - - if (!mediaNode.rules.length) { - return []; - } - return mediaNode; - }, - - visitDirective: function(directiveNode, visitArgs) { - if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) { - return []; - } - if (directiveNode.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (this.charset) { - if (directiveNode.debugInfo) { - var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n"); - comment.debugInfo = directiveNode.debugInfo; - return this._visitor.visit(comment); - } - return []; - } - this.charset = true; - } - return directiveNode; - }, - - checkPropertiesInRoot: function(rules) { - var ruleNode; - for(var i = 0; i < rules.length; i++) { - ruleNode = rules[i]; - if (ruleNode instanceof tree.Rule && !ruleNode.variable) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null}; - } - } - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var rule, rulesets = []; - if (rulesetNode.firstRoot) { - this.checkPropertiesInRoot(rulesetNode.rules); - } - if (! rulesetNode.root) { - - rulesetNode.paths = rulesetNode.paths - .filter(function(p) { - var i; - if (p[0].elements[0].combinator.value === ' ') { - p[0].elements[0].combinator = new(tree.Combinator)(''); - } - for(i = 0; i < p.length; i++) { - if (p[i].getIsReferenced() && p[i].getIsOutput()) { - return true; - } - } - return false; - }); - - // Compile rules and rulesets - for (var i = 0; i < rulesetNode.rules.length; i++) { - rule = rulesetNode.rules[i]; - - if (rule.rules) { - // visit because we are moving them out from being a child - rulesets.push(this._visitor.visit(rule)); - rulesetNode.rules.splice(i, 1); - i--; - continue; - } - } - // accept the visitor to remove rules and refactor itself - // then we can decide now whether we want it or not - if (rulesetNode.rules.length > 0) { - rulesetNode.accept(this._visitor); - } - visitArgs.visitDeeper = false; - - this._mergeRules(rulesetNode.rules); - this._removeDuplicateRules(rulesetNode.rules); - - // now decide whether we keep the ruleset - if (rulesetNode.rules.length > 0 && rulesetNode.paths.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } else { - rulesetNode.accept(this._visitor); - visitArgs.visitDeeper = false; - if (rulesetNode.firstRoot || rulesetNode.rules.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } - if (rulesets.length === 1) { - return rulesets[0]; - } - return rulesets; - }, - - _removeDuplicateRules: function(rules) { - // remove duplicates - var ruleCache = {}, - ruleList, rule, i; - for(i = rules.length - 1; i >= 0 ; i--) { - rule = rules[i]; - if (rule instanceof tree.Rule) { - if (!ruleCache[rule.name]) { - ruleCache[rule.name] = rule; - } else { - ruleList = ruleCache[rule.name]; - if (ruleList instanceof tree.Rule) { - ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)]; - } - var ruleCSS = rule.toCSS(this._env); - if (ruleList.indexOf(ruleCSS) !== -1) { - rules.splice(i, 1); - } else { - ruleList.push(ruleCSS); - } - } - } - } - }, - - _mergeRules: function (rules) { - var groups = {}, - parts, - rule, - key; - - for (var i = 0; i < rules.length; i++) { - rule = rules[i]; - - if ((rule instanceof tree.Rule) && rule.merge) { - key = [rule.name, - rule.important ? "!" : ""].join(","); - - if (!groups[key]) { - parts = groups[key] = []; - } else { - rules.splice(i--, 1); - } - - parts.push(rule); - } - } - - Object.keys(groups).map(function (k) { - parts = groups[k]; - - if (parts.length > 1) { - rule = parts[0]; - - rule.value = new (tree.Value)(parts.map(function (p) { - return p.value; - })); - } - }); - } - }; - -})(require('./tree')); -(function (tree) { - /*jshint loopfunc:true */ - - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - for(i = 0; i < rulesetNode.rules.length; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rulesetNode.rules[i]); - rulesetNode.extendOnEveryPath = true; - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - for(i = 0; i < rulesetNode.paths.length; i++) { - var selectorPath = rulesetNode.paths[i], - selector = selectorPath[selectorPath.length-1]; - extendList = selector.extendList.slice(0).concat(allSelectorsExtendList).map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if (this.inInheritanceChain(targetExtend, extend)) { continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parents = [targetExtend, extend]; - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - inInheritanceChain: function (possibleParent, possibleChild) { - if (possibleParent === possibleChild) { - return true; - } - if (possibleChild.parents) { - if (this.inInheritanceChain(possibleParent, possibleChild.parents[0])) { - return true; - } - if (this.inInheritanceChain(possibleParent, possibleChild.parents[1])) { - return true; - } - } - return false; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (rulesetNode.extendOnEveryPath || selectorPath[selectorPath.length-1].extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator === '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - elementValue1 = elementValue1.value; - elementValue2 = elementValue2.value; - if (elementValue1 instanceof tree.Selector) { - if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) { - return false; - } - for(var i = 0; i currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - newElements = selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)); - - if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) { - path[path.length - 1].elements = - path[path.length - 1].elements.concat(newElements); - } else { - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - newElements - )); - } - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.sourceMapOutput = function (options) { - this._css = []; - this._rootNode = options.rootNode; - this._writeSourceMap = options.writeSourceMap; - this._contentsMap = options.contentsMap; - this._sourceMapFilename = options.sourceMapFilename; - this._outputFilename = options.outputFilename; - this._sourceMapURL = options.sourceMapURL; - this._sourceMapBasepath = options.sourceMapBasepath; - this._sourceMapRootpath = options.sourceMapRootpath; - this._outputSourceFiles = options.outputSourceFiles; - this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator; - - if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') { - this._sourceMapRootpath += '/'; - } - - this._lineNumber = 0; - this._column = 0; - }; - - tree.sourceMapOutput.prototype.normalizeFilename = function(filename) { - if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) { - filename = filename.substring(this._sourceMapBasepath.length); - if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') { - filename = filename.substring(1); - } - } - return (this._sourceMapRootpath || "") + filename.replace(/\\/g, '/'); - }; - - tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) { - - //ignore adding empty strings - if (!chunk) { - return; - } - - var lines, - sourceLines, - columns, - sourceColumns, - i; - - if (fileInfo) { - var inputSource = this._contentsMap[fileInfo.filename].substring(0, index); - sourceLines = inputSource.split("\n"); - sourceColumns = sourceLines[sourceLines.length-1]; - } - - lines = chunk.split("\n"); - columns = lines[lines.length-1]; - - if (fileInfo) { - if (!mapLines) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column}, - original: { line: sourceLines.length, column: sourceColumns.length}, - source: this.normalizeFilename(fileInfo.filename)}); - } else { - for(i = 0; i < lines.length; i++) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0}, - original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0}, - source: this.normalizeFilename(fileInfo.filename)}); - } - } - } - - if (lines.length === 1) { - this._column += columns.length; - } else { - this._lineNumber += lines.length - 1; - this._column = columns.length; - } - - this._css.push(chunk); - }; - - tree.sourceMapOutput.prototype.isEmpty = function() { - return this._css.length === 0; - }; - - tree.sourceMapOutput.prototype.toCSS = function(env) { - this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null }); - - if (this._outputSourceFiles) { - for(var filename in this._contentsMap) { - this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), this._contentsMap[filename]); - } - } - - this._rootNode.genCSS(env, this); - - if (this._css.length > 0) { - var sourceMapURL, - sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); - - if (this._sourceMapURL) { - sourceMapURL = this._sourceMapURL; - } else if (this._sourceMapFilename) { - sourceMapURL = this.normalizeFilename(this._sourceMapFilename); - } - - if (this._writeSourceMap) { - this._writeSourceMap(sourceMapContent); - } else { - sourceMapURL = "data:application/json," + encodeURIComponent(sourceMapContent); - } - - if (sourceMapURL) { - this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */"); - } - } - - return this._css.join(''); - }; - -})(require('./tree')); - -/*global name:true, less, loadStyleSheet, initRhinoTest, os */ - -if (typeof initRhinoTest === 'function') { // definition of additional test functions (see rhino/test-header.js) - initRhinoTest(); -} - -function formatError(ctx, options) { - options = options || {}; - - var message = ""; - var extract = ctx.extract; - var error = []; -// var stylize = options.color ? require('./lessc_helper').stylize : function (str) { return str; }; - var stylize = function (str) { return str; }; - - // only output a stack if it isn't a less error - if (ctx.stack && !ctx.type) { return stylize(ctx.stack, 'red'); } - - if (!ctx.hasOwnProperty('index') || !extract) { - return ctx.stack || ctx.message; - } - - if (typeof(extract[0]) === 'string') { - error.push(stylize((ctx.line - 1) + ' ' + extract[0], 'grey')); - } - - if (typeof(extract[1]) === 'string') { - var errorTxt = ctx.line + ' '; - if (extract[1]) { - errorTxt += extract[1].slice(0, ctx.column) + - stylize(stylize(stylize(extract[1][ctx.column], 'bold') + - extract[1].slice(ctx.column + 1), 'red'), 'inverse'); - } - error.push(errorTxt); - } - - if (typeof(extract[2]) === 'string') { - error.push(stylize((ctx.line + 1) + ' ' + extract[2], 'grey')); - } - error = error.join('\n') + stylize('', 'reset') + '\n'; - - message += stylize(ctx.type + 'Error: ' + ctx.message, 'red'); - ctx.filename && (message += stylize(' in ', 'red') + ctx.filename + - stylize(' on line ' + ctx.line + ', column ' + (ctx.column + 1) + ':', 'grey')); - - message += '\n' + error; - - if (ctx.callLine) { - message += stylize('from ', 'red') + (ctx.filename || '') + '/n'; - message += stylize(ctx.callLine, 'grey') + ' ' + ctx.callExtract + '/n'; - } - - return message; -} - -function writeError(ctx, options) { - options = options || {}; - if (options.silent) { return; } - print(formatError(ctx, options)); -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - var endOfPath = Math.max(name.lastIndexOf('/'), name.lastIndexOf('\\')), - sheetName = name.slice(0, endOfPath + 1) + sheet.href, - contents = sheet.contents || {}, - input = readFile(sheetName); - - input = input.replace(/^\xEF\xBB\xBF/, ''); - - contents[sheetName] = input; - - var parser = new less.Parser({ - paths: [sheet.href.replace(/[\w\.-]+$/, '')], - contents: contents - }); - parser.parse(input, function (e, root) { - if (e) { - return writeError(e); - } - try { - callback(e, root, input, sheet, { local: false, lastModified: 0, remaining: remaining }, sheetName); - } catch(e) { - writeError(e); - } - }); -} - -less.Parser.fileLoader = function (file, currentFileInfo, callback, env) { - - var href = file; - if (currentFileInfo && currentFileInfo.currentDirectory && !/^\//.test(file)) { - href = less.modules.path.join(currentFileInfo.currentDirectory, file); - } - - var path = less.modules.path.dirname(href); - - var newFileInfo = { - currentDirectory: path + '/', - filename: href - }; - - if (currentFileInfo) { - newFileInfo.entryPath = currentFileInfo.entryPath; - newFileInfo.rootpath = currentFileInfo.rootpath; - newFileInfo.rootFilename = currentFileInfo.rootFilename; - newFileInfo.relativeUrls = currentFileInfo.relativeUrls; - } else { - newFileInfo.entryPath = path; - newFileInfo.rootpath = less.rootpath || path; - newFileInfo.rootFilename = href; - newFileInfo.relativeUrls = env.relativeUrls; - } - - var j = file.lastIndexOf('/'); - if(newFileInfo.relativeUrls && !/^(?:[a-z-]+:|\/)/.test(file) && j != -1) { - var relativeSubDirectory = file.slice(0, j+1); - newFileInfo.rootpath = newFileInfo.rootpath + relativeSubDirectory; // append (sub|sup) directory path of imported file - } - newFileInfo.currentDirectory = path; - newFileInfo.filename = href; - - var data = null; - try { - data = readFile(href); - } catch (e) { - callback({ type: 'File', message: "'" + less.modules.path.basename(href) + "' wasn't found" }); - return; - } - - try { - callback(null, data, href, newFileInfo, { lastModified: 0 }); - } catch (e) { - callback(e, null, href); - } -}; - - -function writeFile(filename, content) { - var fstream = new java.io.FileWriter(filename); - var out = new java.io.BufferedWriter(fstream); - out.write(content); - out.close(); -} - -// Command line integration via Rhino -(function (args) { - - var options = { - depends: false, - compress: false, - cleancss: false, - max_line_len: -1, - optimization: 1, - silent: false, - verbose: false, - lint: false, - paths: [], - color: true, - strictImports: false, - rootpath: '', - relativeUrls: false, - ieCompat: true, - strictMath: false, - strictUnits: false - }; - var continueProcessing = true, - currentErrorcode; - - var checkArgFunc = function(arg, option) { - if (!option) { - print(arg + " option requires a parameter"); - continueProcessing = false; - return false; - } - return true; - }; - - var checkBooleanArg = function(arg) { - var onOff = /^((on|t|true|y|yes)|(off|f|false|n|no))$/i.exec(arg); - if (!onOff) { - print(" unable to parse "+arg+" as a boolean. use one of on/t/true/y/yes/off/f/false/n/no"); - continueProcessing = false; - return false; - } - return Boolean(onOff[2]); - }; - - var warningMessages = ""; - - args = args.filter(function (arg) { - var match; - - if (match = arg.match(/^-I(.+)$/)) { - options.paths.push(match[1]); - return false; - } - - if (match = arg.match(/^--?([a-z][0-9a-z-]*)(?:=(.*))?$/i)) { arg = match[1]; } // was (?:=([^\s]*)), check! - else { return arg; } - - switch (arg) { - case 'v': - case 'version': - console.log("lessc " + less.version.join('.') + " (LESS Compiler) [JavaScript]"); - continueProcessing = false; - break; - case 'verbose': - options.verbose = true; - break; - case 's': - case 'silent': - options.silent = true; - break; - case 'l': - case 'lint': - options.lint = true; - break; - case 'strict-imports': - options.strictImports = true; - break; - case 'h': - case 'help': - //TODO -// require('../lib/less/lessc_helper').printUsage(); - continueProcessing = false; - break; - case 'x': - case 'compress': - options.compress = true; - break; - case 'M': - case 'depends': - options.depends = true; - break; - case 'yui-compress': - warningMessages += "yui-compress option has been removed. assuming clean-css."; - options.cleancss = true; - break; - case 'clean-css': - options.cleancss = true; - break; - case 'max-line-len': - if (checkArgFunc(arg, match[2])) { - options.maxLineLen = parseInt(match[2], 10); - if (options.maxLineLen <= 0) { - options.maxLineLen = -1; - } - } - break; - case 'no-color': - options.color = false; - break; - case 'no-ie-compat': - options.ieCompat = false; - break; - case 'no-js': - options.javascriptEnabled = false; - break; - case 'include-path': - if (checkArgFunc(arg, match[2])) { - options.paths = match[2].split(os.type().match(/Windows/) ? ';' : ':') - .map(function(p) { - if (p) { -// return path.resolve(process.cwd(), p); - return p; - } - }); - } - break; - case 'O0': options.optimization = 0; break; - case 'O1': options.optimization = 1; break; - case 'O2': options.optimization = 2; break; - case 'line-numbers': - if (checkArgFunc(arg, match[2])) { - options.dumpLineNumbers = match[2]; - } - break; - case 'source-map': - if (!match[2]) { - options.sourceMap = true; - } else { - options.sourceMap = match[2]; - } - break; - case 'source-map-rootpath': - if (checkArgFunc(arg, match[2])) { - options.sourceMapRootpath = match[2]; - } - break; - case 'source-map-inline': - options.outputSourceFiles = true; - break; - case 'rp': - case 'rootpath': - if (checkArgFunc(arg, match[2])) { - options.rootpath = match[2].replace(/\\/g, '/'); - } - break; - case "ru": - case "relative-urls": - options.relativeUrls = true; - break; - case "sm": - case "strict-math": - if (checkArgFunc(arg, match[2])) { - options.strictMath = checkBooleanArg(match[2]); - } - break; - case "su": - case "strict-units": - if (checkArgFunc(arg, match[2])) { - options.strictUnits = checkBooleanArg(match[2]); - } - break; - default: - console.log('invalid option ' + arg); - continueProcessing = false; - } - }); - - if (!continueProcessing) { - return; - } - - var name = args[0]; - if (name && name != '-') { -// name = path.resolve(process.cwd(), name); - } - var output = args[1]; - var outputbase = args[1]; - if (output) { - options.sourceMapOutputFilename = output; -// output = path.resolve(process.cwd(), output); - if (warningMessages) { - console.log(warningMessages); - } - } - -// options.sourceMapBasepath = process.cwd(); - options.sourceMapBasepath = ''; - - if (options.sourceMap === true) { - if (!output) { - console.log("the sourcemap option only has an optional filename if the css filename is given"); - return; - } - options.sourceMapFullFilename = options.sourceMapOutputFilename + ".map"; - options.sourceMap = less.modules.path.basename(options.sourceMapFullFilename); - } - - if (!name) { - console.log("lessc: no inout files"); - console.log(""); - // TODO -// require('../lib/less/lessc_helper').printUsage(); - currentErrorcode = 1; - return; - } - -// var ensureDirectory = function (filepath) { -// var dir = path.dirname(filepath), -// cmd, -// existsSync = fs.existsSync || path.existsSync; -// if (!existsSync(dir)) { -// if (mkdirp === undefined) { -// try {mkdirp = require('mkdirp');} -// catch(e) { mkdirp = null; } -// } -// cmd = mkdirp && mkdirp.sync || fs.mkdirSync; -// cmd(dir); -// } -// }; - - if (options.depends) { - if (!outputbase) { - console.log("option --depends requires an output path to be specified"); - return; - } - console.log(outputbase + ": "); - } - - if (!name) { - console.log('No files present in the fileset'); - quit(1); - } - - var input = readFile(name, 'utf-8'); - - if (!input) { - console.log('lesscss: couldn\'t open file ' + name); - quit(1); - } - - options.filename = name; - var result; - try { - var parser = new less.Parser(options); - parser.parse(input, function (e, root) { - if (e) { - writeError(e, options); - quit(1); - } else { - result = root.toCSS(options); - if (output) { - writeFile(output, result); - console.log("Written to " + output); - } else { - print(result); - } - quit(0); - } - }); - } - catch(e) { - writeError(e, options); - quit(1); - } - console.log("done"); -}(arguments)); diff --git a/awx/ui/static/lib/less/dist/less-rhino-1.6.2.js b/awx/ui/static/lib/less/dist/less-rhino-1.6.2.js deleted file mode 100644 index e9e7839728..0000000000 --- a/awx/ui/static/lib/less/dist/less-rhino-1.6.2.js +++ /dev/null @@ -1,9017 +0,0 @@ -/* LESS.js v1.6.2 RHINO | Copyright (c) 2009-2014, Alexis Sellier */ - -// -// Stub out `require` in rhino -// -function require(arg) { - var split = arg.split('/'); - var resultModule = split.length == 1 ? less.modules[split[0]] : less[split[1]]; - if (!resultModule) { - throw { message: "Cannot find module '" + arg + "'"}; - } - return resultModule; -} - - -if (typeof(window) === 'undefined') { less = {} } -else { less = window.less = {} } -tree = less.tree = {}; -less.mode = 'rhino'; - -(function() { - - console = function() { - var stdout = java.lang.System.out; - var stderr = java.lang.System.err; - - function doLog(out, type) { - return function() { - var args = java.lang.reflect.Array.newInstance(java.lang.Object, arguments.length - 1); - var format = arguments[0]; - var conversionIndex = 0; - // need to look for %d (integer) conversions because in Javascript all numbers are doubles - for (var i = 1; i < arguments.length; i++) { - var arg = arguments[i]; - if (conversionIndex != -1) { - conversionIndex = format.indexOf('%', conversionIndex); - } - if (conversionIndex >= 0 && conversionIndex < format.length) { - var conversion = format.charAt(conversionIndex + 1); - if (conversion === 'd' && typeof arg === 'number') { - arg = new java.lang.Integer(new java.lang.Double(arg).intValue()); - } - conversionIndex++; - } - args[i-1] = arg; - } - try { - out.println(type + java.lang.String.format(format, args)); - } catch(ex) { - stderr.println(ex); - } - } - } - return { - log: doLog(stdout, ''), - info: doLog(stdout, 'INFO: '), - error: doLog(stderr, 'ERROR: '), - warn: doLog(stderr, 'WARN: ') - }; - }(); - - less.modules = {}; - - less.modules.path = { - join: function() { - var parts = []; - for (i in arguments) { - parts = parts.concat(arguments[i].split(/\/|\\/)); - } - var result = []; - for (i in parts) { - var part = parts[i]; - if (part === '..' && result.length > 0) { - result.pop(); - } else if (part === '' && result.length > 0) { - // skip - } else if (part !== '.') { - if (part.slice(-1)==='\\' || part.slice(-1)==='/') { - part = part.slice(0, -1); - } - result.push(part); - } - } - return result.join('/'); - }, - dirname: function(p) { - var path = p.split('/'); - path.pop(); - return path.join('/'); - }, - basename: function(p, ext) { - var base = p.split('/').pop(); - if (ext) { - var index = base.lastIndexOf(ext); - if (base.length === index + ext.length) { - base = base.substr(0, index); - } - } - return base; - }, - extname: function(p) { - var index = p.lastIndexOf('.'); - return index > 0 ? p.substring(index) : ''; - } - }; - - less.modules.fs = { - readFileSync: function(name) { - // read a file into a byte array - var file = new java.io.File(name); - var stream = new java.io.FileInputStream(file); - var buffer = []; - var c; - while ((c = stream.read()) != -1) { - buffer.push(c); - } - stream.close(); - return { - length: buffer.length, - toString: function(enc) { - if (enc === 'base64') { - return encodeBase64Bytes(buffer); - } else if (enc) { - return java.lang.String["(byte[],java.lang.String)"](buffer, enc); - } else { - return java.lang.String["(byte[])"](buffer); - } - } - }; - } - }; - - less.encoder = { - encodeBase64: function(str) { - return encodeBase64String(str); - } - }; - - // --------------------------------------------------------------------------------------------- - // private helper functions - // --------------------------------------------------------------------------------------------- - - function encodeBase64Bytes(bytes) { - // requires at least a JRE Platform 6 (or JAXB 1.0 on the classpath) - return javax.xml.bind.DatatypeConverter.printBase64Binary(bytes) - } - function encodeBase64String(str) { - return encodeBase64Bytes(new java.lang.String(str).getBytes()); - } - -})(); - -var less, tree; - -// Node.js does not have a header file added which defines less -if (less === undefined) { - less = exports; - tree = require('./tree'); - less.mode = 'node'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `currentPos` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // current chunk - currentPos, // index of current chunk, in `input` - parser, - parsers, - rootFilename = env && env.filename; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed around by reference. - if (!(env instanceof tree.parseEnv)) { - env = new tree.parseEnv(env); - } - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - contentsIgnoredChars: env.contentsIgnoredChars, // lines inserted, not in the original less - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, currentFileInfo, importOptions, callback) { - var parserImports = this; - this.queue.push(path); - - var fileParsedFunc = function (e, root, fullPath) { - parserImports.queue.splice(parserImports.queue.indexOf(path), 1); // Remove the path from the queue - - var importedPreviously = fullPath in parserImports.files || fullPath === rootFilename; - - parserImports.files[fullPath] = root; // Store the root - - if (e && !parserImports.error) { parserImports.error = e; } - - callback(e, root, importedPreviously, fullPath); - }; - - if (less.Parser.importer) { - less.Parser.importer(path, currentFileInfo, fileParsedFunc, env); - } else { - less.Parser.fileLoader(path, currentFileInfo, function(e, contents, fullPath, newFileInfo) { - if (e) {fileParsedFunc(e); return;} - - var newEnv = new tree.parseEnv(env); - - newEnv.currentFileInfo = newFileInfo; - newEnv.processImports = false; - newEnv.contents[fullPath] = contents; - - if (currentFileInfo.reference || importOptions.reference) { - newFileInfo.reference = true; - } - - if (importOptions.inline) { - fileParsedFunc(null, contents, fullPath); - } else { - new(less.Parser)(newEnv).parse(contents, function (e, root) { - fileParsedFunc(e, root, fullPath); - }); - } - }, env); - } - } - }; - - function save() { temp = current; memo = currentPos = i; } - function restore() { current = temp; currentPos = i = memo; } - - function sync() { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - } - function isWhitespace(str, pos) { - var code = str.charCodeAt(pos | 0); - return (code <= 32) && (code === 32 || code === 10 || code === 9); - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var tokType = typeof tok, - match, length; - - // Either match a single character in the input, - // or match a regexp in the current chunk (`current`). - // - if (tokType === "string") { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - // regexp - sync (); - if (! (match = tok.exec(current))) { - return null; - } - - length = match[0].length; - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - - // Specialization of $(tok) - function $re(tok) { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - var m = tok.exec(current); - if (!m) { - return null; - } - - skipWhitespace(m[0].length); - if(typeof m === "string") { - return m; - } - - return m.length === 1 ? m[0] : m; - } - - var _$re = $re; - - // Specialization of $(tok) - function $char(tok) { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - curr = i - currentPos, - endIndex = i + current.length - curr, - mem = (i += length), - inp = input, - c; - - for (; i < endIndex; i++) { - c = inp.charCodeAt(i); - if (c > 32) { - break; - } - - if ((c !== 32) && (c !== 10) && (c !== 9) && (c !== 13)) { - break; - } - } - - current = current.slice(length + i - mem + curr); - currentPos = i; - - if (!current.length && (j < chunks.length - 1)) { - current = chunks[++j]; - skipWhitespace(0); // skip space at the beginning of a chunk - return true; // things changed - } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - // some older browsers return typeof 'function' for RegExp - var result = (Object.prototype.toString.call(arg) === '[object Function]') ? arg.call(parsers) : $(arg); - if (result) { - return result; - } - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } - - // Specialization of expect() - function expectChar(arg, msg) { - if (input.charAt(i) === arg) { - skipWhitespace(1); - return arg; - } - error(msg || "expected '" + arg + "' got '" + input.charAt(i) + "'"); - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - return tok.test(current); - } - } - - // Specialization of peek() - function peekChar(tok) { - return input.charAt(i) === tok; - } - - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, inputStream) { - var n = index + 1, - line = null, - column = -1; - - while (--n >= 0 && inputStream.charAt(n) !== '\n') { - column++; - } - - if (typeof index === 'number') { - line = (inputStream.slice(0, index).match(/\n/g) || "").length; - } - - return { - line: line, - column: column - }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - callLine = e.call && getLocation(e.call, input).line, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = callLine + 1; - this.callExtract = lines[callLine]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // @param str A string containing 'less' markup - // @param callback call `callback` when done. - // @param [additionalData] An optional map which can contains vars - a map (key, value) of variables to apply - // - parse: function (str, callback, additionalData) { - var root, line, lines, error = null, globalVars, modifyVars, preText = ""; - - i = j = currentPos = furthest = 0; - - globalVars = (additionalData && additionalData.globalVars) ? less.Parser.serializeVars(additionalData.globalVars) + '\n' : ''; - modifyVars = (additionalData && additionalData.modifyVars) ? '\n' + less.Parser.serializeVars(additionalData.modifyVars) : ''; - - if (globalVars || (additionalData && additionalData.banner)) { - preText = ((additionalData && additionalData.banner) ? additionalData.banner : "") + globalVars; - parser.imports.contentsIgnoredChars[env.currentFileInfo.filename] = preText.length; - } - - str = str.replace(/\r\n/g, '\n'); - // Remove potential UTF Byte Order Mark - input = str = preText + str.replace(/^\uFEFF/, '') + modifyVars; - parser.imports.contents[env.currentFileInfo.filename] = str; - - // Split the input into chunks. - chunks = (function (input) { - var len = input.length, level = 0, parenLevel = 0, - lastOpening, lastOpeningParen, lastMultiComment, lastMultiCommentEndBrace, - chunks = [], emitFrom = 0, - parserCurrentIndex, currentChunkStartIndex, cc, cc2, matched; - - function fail(msg, index) { - error = new(LessError)({ - index: index || parserCurrentIndex, - type: 'Parse', - message: msg, - filename: env.currentFileInfo.filename - }, env); - } - - function emitChunk(force) { - var len = parserCurrentIndex - emitFrom; - if (((len < 512) && !force) || !len) { - return; - } - chunks.push(input.slice(emitFrom, parserCurrentIndex + 1)); - emitFrom = parserCurrentIndex + 1; - } - - for (parserCurrentIndex = 0; parserCurrentIndex < len; parserCurrentIndex++) { - cc = input.charCodeAt(parserCurrentIndex); - if (((cc >= 97) && (cc <= 122)) || (cc < 34)) { - // a-z or whitespace - continue; - } - - switch (cc) { - case 40: // ( - parenLevel++; - lastOpeningParen = parserCurrentIndex; - continue; - case 41: // ) - if (--parenLevel < 0) { - return fail("missing opening `(`"); - } - continue; - case 59: // ; - if (!parenLevel) { emitChunk(); } - continue; - case 123: // { - level++; - lastOpening = parserCurrentIndex; - continue; - case 125: // } - if (--level < 0) { - return fail("missing opening `{`"); - } - if (!level) { emitChunk(); } - continue; - case 92: // \ - if (parserCurrentIndex < len - 1) { parserCurrentIndex++; continue; } - return fail("unescaped `\\`"); - case 34: - case 39: - case 96: // ", ' and ` - matched = 0; - currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 1; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 > 96) { continue; } - if (cc2 == cc) { matched = 1; break; } - if (cc2 == 92) { // \ - if (parserCurrentIndex == len - 1) { - return fail("unescaped `\\`"); - } - parserCurrentIndex++; - } - } - if (matched) { continue; } - return fail("unmatched `" + String.fromCharCode(cc) + "`", currentChunkStartIndex); - case 47: // /, check for comment - if (parenLevel || (parserCurrentIndex == len - 1)) { continue; } - cc2 = input.charCodeAt(parserCurrentIndex + 1); - if (cc2 == 47) { - // //, find lnfeed - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if ((cc2 <= 13) && ((cc2 == 10) || (cc2 == 13))) { break; } - } - } else if (cc2 == 42) { - // /*, find */ - lastMultiComment = currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len - 1; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 == 125) { lastMultiCommentEndBrace = parserCurrentIndex; } - if (cc2 != 42) { continue; } - if (input.charCodeAt(parserCurrentIndex + 1) == 47) { break; } - } - if (parserCurrentIndex == len - 1) { - return fail("missing closing `*/`", currentChunkStartIndex); - } - parserCurrentIndex++; - } - continue; - case 42: // *, check for unmatched */ - if ((parserCurrentIndex < len - 1) && (input.charCodeAt(parserCurrentIndex + 1) == 47)) { - return fail("unmatched `/*`"); - } - continue; - } - } - - if (level !== 0) { - if ((lastMultiComment > lastOpening) && (lastMultiCommentEndBrace > lastMultiComment)) { - return fail("missing closing `}` or `*/`", lastOpening); - } else { - return fail("missing closing `}`", lastOpening); - } - } else if (parenLevel !== 0) { - return fail("missing closing `)`", lastOpeningParen); - } - - emitChunk(true); - return chunks; - })(str); - - if (error) { - return callback(new(LessError)(error, env)); - } - - current = chunks[0]; - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)(null, this.parsers.primary()); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - return function (options, variables) { - options = options || {}; - var evaldRoot, - css, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, null, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var preEvalVisitors = [], - visitors = [ - new(tree.joinSelectorVisitor)(), - new(tree.processExtendsVisitor)(), - new(tree.toCSSVisitor)({compress: Boolean(options.compress)}) - ], i, root = this; - - if (options.plugins) { - for(i =0; i < options.plugins.length; i++) { - if (options.plugins[i].isPreEvalVisitor) { - preEvalVisitors.push(options.plugins[i]); - } else { - if (options.plugins[i].isPreVisitor) { - visitors.splice(0, 0, options.plugins[i]); - } else { - visitors.push(options.plugins[i]); - } - } - } - } - - for(i = 0; i < preEvalVisitors.length; i++) { - preEvalVisitors[i].run(root); - } - - evaldRoot = evaluate.call(root, evalEnv); - - for(i = 0; i < visitors.length; i++) { - visitors[i].run(evaldRoot); - } - - if (options.sourceMap) { - evaldRoot = new tree.sourceMapOutput( - { - contentsIgnoredCharsMap: parser.imports.contentsIgnoredChars, - writeSourceMap: options.writeSourceMap, - rootNode: evaldRoot, - contentsMap: parser.imports.contents, - sourceMapFilename: options.sourceMapFilename, - sourceMapURL: options.sourceMapURL, - outputFilename: options.sourceMapOutputFilename, - sourceMapBasepath: options.sourceMapBasepath, - sourceMapRootpath: options.sourceMapRootpath, - outputSourceFiles: options.outputSourceFiles, - sourceMapGenerator: options.sourceMapGenerator - }); - } - - css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits), - numPrecision: 8}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.cleancss && less.mode === 'node') { - var CleanCSS = require('clean-css'), - cleancssOptions = options.cleancssOptions || {}; - - if (cleancssOptions.keepSpecialComments === undefined) { - cleancssOptions.keepSpecialComments = "*"; - } - cleancssOptions.processImport = false; - cleancssOptions.noRebase = true; - if (cleancssOptions.noAdvanced === undefined) { - cleancssOptions.noAdvanced = true; - } - - return new CleanCSS(cleancssOptions).minify(css); - } else if (options.compress) { - return css.replace(/(^(\s)+)|((\s)+$)/g, ""); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - var loc = getLocation(i, input); - lines = input.split('\n'); - line = loc.line + 1; - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: loc.column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - return callback(e); - } - else { - return callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - return finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: parsers = { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var mixin = this.mixin, $re = _$re, root = [], node; - - while (current) - { - node = this.extendRule() || mixin.definition() || this.rule() || this.ruleset() || - mixin.call() || this.comment() || this.directive(); - if (node) { - root.push(node); - } else { - if (!($re(/^[\s\n]+/) || $re(/^;+/))) { - break; - } - } - } - - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') { return; } - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($re(/^\/\/.*/), true, i, env.currentFileInfo); - } - comment = $re(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/); - if (comment) { - return new(tree.Comment)(comment, false, i, env.currentFileInfo); - } - }, - - comments: function () { - var comment, comments = []; - - while(true) { - comment = this.comment(); - if (!comment) { - break; - } - comments.push(comment); - } - - return comments; - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; } - - if (e) { $char('~'); } - - str = $re(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/); - if (str) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - k = $re(/^[_A-Za-z-][_A-Za-z0-9-]*/); - if (k) { - var color = tree.Color.fromKeyword(k); - if (color) { - return color; - } - return new(tree.Keyword)(k); - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(current); - if (!name) { return; } - - name = name[1]; - nameLC = name.toLowerCase(); - if (nameLC === 'url') { - return null; - } - - i += name.length; - - if (nameLC === 'alpha') { - alpha_ret = parsers.alpha(); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $char('('); // Parse the '(' and consume whitespace. - - args = this.arguments(); - - if (! $char(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (true) { - arg = this.assignment() || parsers.expression(); - if (!arg) { - break; - } - args.push(arg); - if (! $char(',')) { - break; - } - } - return args; - }, - literal: function () { - return this.dimension() || - this.color() || - this.quoted() || - this.unicodeDescriptor(); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - key = $re(/^\w+(?=\s?=)/i); - if (!key) { - return; - } - if (!$char('=')) { - return; - } - value = parsers.entity(); - if (value) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$re(/^url\(/)) { - return; - } - - value = this.quoted() || this.variable() || - $re(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expectChar(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $re(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var curly, index = i; - - if (input.charAt(i) === '@' && (curly = $re(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $re(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) { - return; - } - - value = $re(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/); - if (value) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - ud = $re(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/); - if (ud) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '`') { return; } - if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) { - error("You are using JavaScript, which has been disabled."); - } - - if (e) { $char('~'); } - - str = $re(/^`([^`]*)`/); - if (str) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*:/))) { return name[1]; } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList, extend; - - if (!(isRule ? $re(/^&:extend\(/) : $re(/^:extend\(/))) { return; } - - do { - option = null; - elements = null; - while (! (option = $re(/^(all)(?=\s*(\)|,))/))) { - e = this.element(); - if (!e) { break; } - if (elements) { elements.push(e); } else { elements = [ e ]; } - } - - option = option && option[1]; - - extend = new(tree.Extend)(new(tree.Selector)(elements), option, index); - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - - } while($char(",")); - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var s = input.charAt(i), important = false, index = i, elemIndex, - elements, elem, e, c, args; - - if (s !== '.' && s !== '#') { return; } - - save(); // stop us absorbing part of an invalid selector - - while (true) { - elemIndex = i; - e = $re(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/); - if (!e) { - break; - } - elem = new(tree.Element)(c, e, elemIndex, env.currentFileInfo); - if (elements) { elements.push(elem); } else { elements = [ elem ]; } - c = $char('>'); - } - - if (elements) { - if ($char('(')) { - args = this.args(true).args; - expectChar(')'); - } - - if (parsers.important()) { - important = true; - } - - if (parsers.end()) { - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - } - - restore(); - }, - args: function (isCall) { - var parsers = parser.parsers, entities = parsers.entities, - returner = { args:null, variadic: false }, - expressions = [], argsSemiColon = [], argsComma = [], - isSemiColonSeperated, expressionContainsNamed, name, nameLoop, value, arg; - - while (true) { - if (isCall) { - arg = parsers.expression(); - } else { - parsers.comments(); - if (input.charAt(i) === '.' && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = entities.variable() || entities.literal() || entities.keyword(); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value.length == 1) { - val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($char(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(parsers.expression); - nameLoop = (name = val.name); - } else if (!isCall && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($char(',')) { - continue; - } - - if ($char(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) { - return; - } - - save(); - - match = $re(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/); - if (match) { - name = match[1]; - - var argInfo = this.args(false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$char(')')) { - furthest = i; - restore(); - } - - parsers.comments(); - - if ($re(/^when/)) { // Guard - cond = expect(parsers.conditions, 'expected condition'); - } - - ruleset = parsers.block(); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - var entities = this.entities; - - return entities.literal() || entities.variable() || entities.url() || - entities.call() || entities.keyword() || entities.javascript() || - this.comment(); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $char(';') || peekChar('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $re(/^\(opacity=/i)) { return; } - value = $re(/^\d+/) || this.entities.variable(); - if (value) { - expectChar(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, c, v, index = i; - - c = this.combinator(); - - e = $re(/^(?:\d+\.\d+|\d+)%/) || $re(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $char('*') || $char('&') || this.attribute() || $re(/^\([^()@]+\)/) || $re(/^[\.#](?=@)/) || - this.entities.variableCurly(); - - if (! e) { - if ($char('(')) { - if ((v = this.selector()) && $char(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, index, env.currentFileInfo); } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|' || c === '^') { - i++; - if (input.charAt(i) === '^') { - c = '^^'; - i++; - } - while (isWhitespace(input, i)) { i++; } - return new(tree.Combinator)(c); - } else if (isWhitespace(input, i - 1)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - // - // A CSS selector (see selector below) - // with less extensions e.g. the ability to extend and guard - // - lessSelector: function () { - return this.selector(true); - }, - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function (isLess) { - var index = i, $re = _$re, elements, extendList, c, e, extend, when, condition; - - while ((isLess && (extend = this.extend())) || (isLess && (when = $re(/^when/))) || (e = this.element())) { - if (when) { - condition = expect(this.conditions, 'expected condition'); - } else if (condition) { - error("CSS guard can only be used at the end of selector"); - } else if (extend) { - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - } else { - if (extendList) { error("Extend can only be used at the end of selector"); } - c = input.charAt(i); - if (elements) { elements.push(e); } else { elements = [ e ]; } - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { - break; - } - } - - if (elements) { return new(tree.Selector)(elements, extendList, condition, index, env.currentFileInfo); } - if (extendList) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - if (! $char('[')) { return; } - - var entities = this.entities, - key, val, op; - - if (!(key = entities.variableCurly())) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - op = $re(/^[|~*$^]?=/); - if (op) { - val = entities.quoted() || $re(/^[0-9]+%/) || $re(/^[\w-]+/) || entities.variableCurly(); - } - - expectChar(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($char('{') && (content = this.primary()) && $char('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors, s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - while (true) { - s = this.lessSelector(); - if (!s) { - break; - } - if (selectors) { selectors.push(s); } else { selectors = [ s ]; } - this.comments(); - if (s.condition && selectors.length > 1) { - error("Guards are only currently allowed on a single selector."); - } - if (! $char(',')) { break; } - if (s.condition) { - error("Guards are only currently allowed on a single selector."); - } - this.comments(); - } - - if (selectors && (rules = this.block())) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) { - ruleset.debugInfo = debugInfo; - } - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, c = input.charAt(i), important, merge = false; - save(); - - if (c === '.' || c === '#' || c === '&') { return; } - - name = this.variable() || this.ruleProperty(); - if (name) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || (name.charAt && (name.charAt(0) === '@'))) ? - (this.value() || this.anonymousValue()) : - (this.anonymousValue() || this.value()); - - important = this.important(); - - // a name returned by this.ruleProperty() is always an array of the form: - // [string-1, ..., string-n, ""] or [string-1, ..., string-n, "+"] - // where each item is a tree.Keyword or tree.Variable - merge = name.pop && (name.pop().value === "+"); - - if (value && this.end()) { - return new (tree.Rule)(name, value, important, merge, memo, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } - }, - anonymousValue: function () { - var match; - match = /^([^@+\/'"*`(;{}-]*);/.exec(current); - if (match) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $re(/^@import?\s+/); - - var options = (dir ? this.importOptions() : null) || {}; - - if (dir && (path = this.entities.quoted() || this.entities.url())) { - features = this.mediaFeatures(); - if ($char(';')) { - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $char('(')) { return null; } - do { - o = this.importOption(); - if (o) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $char(',')) { break; } - } - } while (o); - expectChar(')'); - return options; - }, - - importOption: function() { - var opt = $re(/^(less|css|multiple|once|inline|reference)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var entities = this.entities, nodes = [], e, p; - do { - e = entities.keyword() || entities.variable(); - if (e) { - nodes.push(e); - } else if ($char('(')) { - p = this.property(); - e = this.value(); - if ($char(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null; } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var entities = this.entities, features = [], e; - do { - e = this.mediaFeature(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } else { - e = entities.variable(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - if ($re(/^@media/)) { - features = this.mediaFeatures(); - - rules = this.block(); - if (rules) { - media = new(tree.Media)(rules, features, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - media.debugInfo = debugInfo; - } - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var index = i, name, value, rules, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression, identifier; - - if (input.charAt(i) !== '@') { return; } - - value = this['import']() || this.media(); - if (value) { - return value; - } - - save(); - - name = $re(/^@[a-z-]+/); - - if (!name) { return; } - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@host": - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - identifier = ($re(/^[^{]+/) || '').trim(); - if (identifier) { - name += " " + identifier; - } - } - - if (hasBlock) { - rules = this.block(); - if (rules) { - return new(tree.Directive)(name, rules, index, env.currentFileInfo); - } - } else { - value = hasExpression ? this.expression() : this.entity(); - if (value && $char(';')) { - var directive = new(tree.Directive)(name, value, index, env.currentFileInfo); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = []; - - do { - e = this.expression(); - if (e) { - expressions.push(e); - if (! $char(',')) { break; } - } - } while(e); - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $re(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($char('(')) { - a = this.addition(); - if (a) { - e = new(tree.Expression)([a]); - expectChar(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced; - m = this.operand(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - if (peek(/^\/[*\/]/)) { - break; - } - op = $char('/') || $char('*'); - - if (!op) { break; } - - a = this.operand(); - - if (!a) { break; } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - m = this.multiplication(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - op = $re(/^[-+]\s+/) || (!isSpaced && ($char('+') || $char('-'))); - if (!op) { - break; - } - a = this.multiplication(); - if (!a) { - break; - } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - a = this.condition(); - if (a) { - while (true) { - if (!peek(/^,\s*(not\s*)?\(/) || !$char(',')) { - break; - } - b = this.condition(); - if (!b) { - break; - } - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var entities = this.entities, index = i, negate = false, - a, b, c, op; - - if ($re(/^not/)) { negate = true; } - expectChar('('); - a = this.addition() || entities.keyword() || entities.quoted(); - if (a) { - op = $re(/^(?:>=|<=|=<|[<=>])/); - if (op) { - b = this.addition() || entities.keyword() || entities.quoted(); - if (b) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expectChar(')'); - return $re(/^and/) ? new(tree.Condition)('and', c, this.condition()) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var entities = this.entities, - p = input.charAt(i + 1), negate; - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $char('-'); } - var o = this.sub() || entities.dimension() || - entities.color() || entities.variable() || - entities.call(); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var entities = [], e, delim; - - do { - e = this.addition() || this.entity(); - if (e) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/)) { - delim = $char('/'); - if (delim) { - entities.push(new(tree.Anonymous)(delim)); - } - } - } - } while (e); - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name = $re(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/); - if (name) { - return name[1]; - } - }, - ruleProperty: function () { - var c = current, name = [], index = [], length = 0, s, k; - - function match(re) { - var a = re.exec(c); - if (a) { - index.push(i + length); - length += a[0].length; - c = c.slice(a[1].length); - return name.push(a[1]); - } - } - - match(/^(\*?)/); - while (match(/^((?:[\w-]+)|(?:@\{[\w-]+\}))/)); // ! - if ((name.length > 1) && match(/^\s*(\+?)\s*:/)) { - // at last, we have the complete match now. move forward, - // convert name particles to tree objects and return: - skipWhitespace(length); - if (name[0] === '') { - name.shift(); - index.shift(); - } - for (k = 0; k < name.length; k++) { - s = name[k]; - name[k] = (s.charAt(0) !== '@') - ? new(tree.Keyword)(s) - : new(tree.Variable)('@' + s.slice(2, -1), - index[k], env.currentFileInfo); - } - return name; - } - } - } - }; - return parser; -}; -less.Parser.serializeVars = function(vars) { - var s = ''; - - for (var name in vars) { - if (Object.hasOwnProperty.call(vars, name)) { - var value = vars[name]; - s += ((name[0] === '@') ? '' : '@') + name +': '+ value + - ((('' + value).slice(-1) === ';') ? '' : ';'); - } - } - - return s; -}; - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 255); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; } - else if (h * 2 < 1) { return m2; } - else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; } - else { return m1; } - } - - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - // filter: saturate(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if (color.luma() < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - /*jshint loopfunc:true */ - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - if(!(val instanceof tree.Dimension)) { - throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") }; - } - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return _math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _minmax: function (isMin, args) { - args = Array.prototype.slice.call(args); - switch(args.length) { - case 0: throw { type: "Argument", message: "one or more arguments required" }; - case 1: return args[0]; - } - var i, j, current, currentUnified, referenceUnified, unit, - order = [], // elems only contains original argument values. - values = {}; // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - for (i = 0; i < args.length; i++) { - current = args[i]; - if (!(current instanceof tree.Dimension)) { - order.push(current); - continue; - } - currentUnified = current.unify(); - unit = currentUnified.unit.toString(); - j = values[unit]; - if (j === undefined) { - values[unit] = order.length; - order.push(current); - continue; - } - referenceUnified = order[j].unify(); - if ( isMin && currentUnified.value < referenceUnified.value || - !isMin && currentUnified.value > referenceUnified.value) { - order[j] = current; - } - } - if (order.length == 1) { - return order[0]; - } - args = order.map(function (a) { return a.toCSS(this.env); }) - .join(this.env.compress ? "," : ", "); - return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")"); - }, - min: function () { - return this._minmax(true, arguments); - }, - max: function () { - return this._minmax(false, arguments); - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - var colorCandidate = n.value, - returnColor; - returnColor = tree.Color.fromKeyword(colorCandidate); - if (returnColor) { - return returnColor; - } - if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) { - return new(tree.Color)(colorCandidate.slice(1)); - } - throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" }; - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - return Array.isArray(values.value) - ? values.value[index] : Array(values)[index]; - }, - length: function(values) { - var n = Array.isArray(values.value) ? values.value.length : 1; - return new tree.Dimension(n); - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require('fs'), - path = require('path'), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) { mimetype += ';base64'; } - } - else { - useBase64 = /;base64$/.test(mimetype); - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "\"data:" + mimetype + ',' + buf + "\""; - return new(tree.URL)(new(tree.Anonymous)(uri)); - }, - - "svg-gradient": function(direction) { - - function throwArgumentDescriptor() { - throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" }; - } - - if (arguments.length < 3) { - throwArgumentDescriptor(); - } - var stops = Array.prototype.slice.call(arguments, 1), - gradientDirectionSvg, - gradientType = "linear", - rectangleDimension = 'x="0" y="0" width="1" height="1"', - useBase64 = true, - renderEnv = {compress: false}, - returner, - directionValue = direction.toCSS(renderEnv), - i, color, position, positionValue, alpha; - - switch (directionValue) { - case "to bottom": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - gradientType = "radial"; - gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" }; - } - returner = '' + - '' + - '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>'; - - for (i = 0; i < stops.length; i+= 1) { - if (stops[i].value) { - color = stops[i].value[0]; - position = stops[i].value[1]; - } else { - color = stops[i]; - position = undefined; - } - - if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) { - throwArgumentDescriptor(); - } - positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%"; - alpha = color.alpha; - returner += ''; - } - returner += '' + - ''; - - if (useBase64) { - try { - returner = require('./encoder').encodeBase64(returner); // TODO browser implementation - } catch(e) { - useBase64 = false; - } - } - - returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'"; - return new(tree.URL)(new(tree.Anonymous)(returner)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -// Math - -var mathFunctions = { - // name, unit - ceil: null, - floor: null, - sqrt: null, - abs: null, - tan: "", - sin: "", - cos: "", - atan: "rad", - asin: "rad", - acos: "rad" -}; - -function _math(fn, unit, n) { - if (!(n instanceof tree.Dimension)) { - throw { type: "Argument", message: "argument must be a number" }; - } - if (unit == null) { - unit = n.unit; - } else { - n = n.unify(); - } - return new(tree.Dimension)(fn(parseFloat(n.value)), unit); -} - -// ~ End of Math - -// Color Blending -// ref: http://www.w3.org/TR/compositing-1 - -function colorBlend(mode, color1, color2) { - var ab = color1.alpha, cb, // backdrop - as = color2.alpha, cs, // source - ar, cr, r = []; // result - - ar = as + ab * (1 - as); - for (var i = 0; i < 3; i++) { - cb = color1.rgb[i] / 255; - cs = color2.rgb[i] / 255; - cr = mode(cb, cs); - if (ar) { - cr = (as * cs + ab * (cb - - as * (cb + cs - cr))) / ar; - } - r[i] = cr * 255; - } - - return new(tree.Color)(r, ar); -} - -var colorBlendMode = { - multiply: function(cb, cs) { - return cb * cs; - }, - screen: function(cb, cs) { - return cb + cs - cb * cs; - }, - overlay: function(cb, cs) { - cb *= 2; - return (cb <= 1) - ? colorBlendMode.multiply(cb, cs) - : colorBlendMode.screen(cb - 1, cs); - }, - softlight: function(cb, cs) { - var d = 1, e = cb; - if (cs > 0.5) { - e = 1; - d = (cb > 0.25) ? Math.sqrt(cb) - : ((16 * cb - 12) * cb + 4) * cb; - } - return cb - (1 - 2 * cs) * e * (d - cb); - }, - hardlight: function(cb, cs) { - return colorBlendMode.overlay(cs, cb); - }, - difference: function(cb, cs) { - return Math.abs(cb - cs); - }, - exclusion: function(cb, cs) { - return cb + cs - 2 * cb * cs; - }, - - // non-w3c functions: - average: function(cb, cs) { - return (cb + cs) / 2; - }, - negation: function(cb, cs) { - return 1 - Math.abs(cb + cs - 1); - } -}; - -// ~ End of Color Blending - -tree.defaultFunc = { - eval: function () { - var v = this.value_, e = this.error_; - if (e) { - throw e; - } - if (v != null) { - return v ? tree.True : tree.False; - } - }, - value: function (v) { - this.value_ = v; - }, - error: function (e) { - this.error_ = e; - }, - reset: function () { - this.value_ = this.error_ = null; - } -}; - -function initFunctions() { - var f, tf = tree.functions; - - // math - for (f in mathFunctions) { - if (mathFunctions.hasOwnProperty(f)) { - tf[f] = _math.bind(null, Math[f], mathFunctions[f]); - } - } - - // color blending - for (f in colorBlendMode) { - if (colorBlendMode.hasOwnProperty(f)) { - tf[f] = colorBlend.bind(null, colorBlendMode[f]); - } - } - - // default - f = tree.defaultFunc; - tf["default"] = f.eval.bind(f); - -} initFunctions(); - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.fround = function(env, value) { - var p; - if (env && (env.numPrecision != null)) { - p = Math.pow(10, env.numPrecision); - return Math.round(value * p) / p; - } else { - return value; - } -}; - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); - -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); - -(function (tree) { - -tree.debugInfo = function(env, ctx, lineSeperator) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:\/\\])/g, function (a) { - if (a == '\\') { - a = '\/'; - } - return '\\' + a; - }) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - r = fun.call(obj, obj[i]); - if (r) { return r; } - } - return null; -}; - -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false); }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -tree.toCSS = function (env) { - var strs = []; - this.genCSS(env, { - add: function(chunk, fileInfo, index) { - strs.push(chunk); - }, - isEmpty: function () { - return strs.length === 0; - } - }); - return strs.join(''); -}; - -tree.outputRuleset = function (env, output, rules) { - var ruleCnt = rules.length, i; - env.tabLevel = (env.tabLevel | 0) + 1; - - // Compressed - if (env.compress) { - output.add('{'); - for (i = 0; i < ruleCnt; i++) { - rules[i].genCSS(env, output); - } - output.add('}'); - env.tabLevel--; - return; - } - - // Non-compressed - var tabSetStr = '\n' + Array(env.tabLevel).join(" "), tabRuleStr = tabSetStr + " "; - if (!ruleCnt) { - output.add(" {" + tabSetStr + '}'); - } else { - output.add(" {" + tabRuleStr); - rules[0].genCSS(env, output); - for (i = 1; i < ruleCnt; i++) { - output.add(tabRuleStr); - rules[i].genCSS(env, output); - } - output.add(tabSetStr + '}'); - } - - env.tabLevel--; -}; - -})(require('./tree')); - -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } - return this; - }, - genCSS: function (env, output) { - output.add("alpha(opacity="); - - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - - output.add(")"); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Anonymous = function (string, index, currentFileInfo, mapLines) { - this.value = string.value || string; - this.index = index; - this.mapLines = mapLines; - this.currentFileInfo = currentFileInfo; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - eval: function () { - return new tree.Anonymous(this.value, this.index, this.currentFileInfo, this.mapLines); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - }, - genCSS: function (env, output) { - output.add(this.value, this.currentFileInfo, this.index, this.mapLines); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - }, - genCSS: function (env, output) { - output.add(this.key + '='); - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - if (this.args) { - this.args = visitor.visitArray(this.args); - } - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - return new tree.Call(this.name, args, this.index, this.currentFileInfo); - }, - - genCSS: function (env, output) { - output.add(this.name + "(", this.currentFileInfo, this.index); - - for(var i = 0; i < this.args.length; i++) { - this.args[i].genCSS(env, output); - if (i + 1 < this.args.length) { - output.add(", "); - } - } - - output.add(")"); - }, - - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; - -var transparentKeyword = "transparent"; - -tree.Color.prototype = { - type: "Color", - eval: function () { return this; }, - luma: function () { return (0.2126 * this.rgb[0] / 255) + (0.7152 * this.rgb[1] / 255) + (0.0722 * this.rgb[2] / 255); }, - - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress, - alpha = tree.fround(env, this.alpha); - - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - if (alpha < 1) { - if (alpha === 0 && this.isTransparentKeyword) { - return transparentKeyword; - } - return "rgba(" + this.rgb.map(function (c) { - return clamp(Math.round(c), 255); - }).concat(clamp(alpha, 1)) - .join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.toRGB(); - - if (compress) { - var splitcolor = color.split(''); - - // Convert color to short format - if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) { - color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5]; - } - } - - return color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var rgb = []; - var alpha = this.alpha * (1 - other.alpha) + other.alpha; - for (var c = 0; c < 3; c++) { - rgb[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(rgb, alpha); - }, - - toRGB: function () { - return toHex(this.rgb); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - return toHex([this.alpha * 255].concat(this.rgb)); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - -tree.Color.fromKeyword = function(keyword) { - keyword = keyword.toLowerCase(); - - if (tree.colors.hasOwnProperty(keyword)) { - // detect named color - return new(tree.Color)(tree.colors[keyword].slice(1)); - } - if (keyword === transparentKeyword) { - var transparent = new(tree.Color)([0, 0, 0], 0); - transparent.isTransparentKeyword = true; - return transparent; - } -}; - -function toHex(v) { - return '#' + v.map(function (c) { - c = clamp(Math.round(c), 255); - return (c < 16 ? '0' : '') + c.toString(16); - }).join(''); -} - -function clamp(v, max) { - return Math.min(Math.max(v, 0), max); -} - -})(require('../tree')); - -(function (tree) { - -tree.Comment = function (value, silent, index, currentFileInfo) { - this.value = value; - this.silent = !!silent; - this.currentFileInfo = currentFileInfo; -}; -tree.Comment.prototype = { - type: "Comment", - genCSS: function (env, output) { - if (this.debugInfo) { - output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index); - } - output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n - }, - toCSS: tree.toCSS, - isSilent: function(env) { - var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced), - isCompressed = env.compress && !this.value.match(/^\/\*!/); - return this.silent || isReference || isCompressed; - }, - eval: function () { return this; }, - markReferenced: function () { - this.isReferenced = true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<' || op === '<='; - case 0: return op === '=' || op === '>=' || op === '=<' || op === '<='; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); - -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - genCSS: function (env, output) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = tree.fround(env, this.value), - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && this.unit.isLength()) { - output.add(strValue); - return; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - output.add(strValue); - this.unit.genCSS(env, output); - }, - toCSS: tree.toCSS, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - /*jshint noempty:false */ - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a = this.unify(), b = other.unify(), - aValue = a.value, bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - if (!b.unit.isEmpty() && a.unit.compare(b.unit) !== 0) { - return -1; - } - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'm', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, targetUnit, derivedConversions = {}, applyUnit; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - applyUnit = function (atomicUnit, denominator) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(applyUnit); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - genCSS: function (env, output) { - if (this.numerator.length >= 1) { - output.add(this.numerator[0]); - } else - if (this.denominator.length >= 1) { - output.add(this.denominator[0]); - } else - if ((!env || !env.strictUnits) && this.backupUnit) { - output.add(this.backupUnit); - } - }, - toCSS: tree.toCSS, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isLength: function () { - return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/)); - }, - - isEmpty: function () { - return this.numerator.length === 0 && this.denominator.length === 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length === 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, result = {}, mapUnit; - - mapUnit = function (atomicUnit) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }; - - for (var groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(mapUnit); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Directive = function (name, value, index, currentFileInfo) { - this.name = name; - - if (Array.isArray(value)) { - this.rules = [new(tree.Ruleset)(null, value)]; - this.rules[0].allowImports = true; - } else { - this.value = value; - } - this.index = index; - this.currentFileInfo = currentFileInfo; - -}; -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - if (this.value) { - this.value = visitor.visit(this.value); - } - }, - genCSS: function (env, output) { - output.add(this.name, this.currentFileInfo, this.index); - if (this.rules) { - tree.outputRuleset(env, output, this.rules); - } else { - output.add(' '); - this.value.genCSS(env, output); - output.add(';'); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var evaldDirective = this; - if (this.rules) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name, null, this.index, this.currentFileInfo); - evaldDirective.rules = [this.rules[0].eval(env)]; - evaldDirective.rules[0].root = true; - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - markReferenced: function () { - var i, rules; - this.isReferenced = true; - if (this.rules) { - rules = this.rules[0].rules; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Element = function (combinator, value, index, currentFileInfo) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - var value = this.value; - this.combinator = visitor.visit(this.combinator); - if (typeof value === "object") { - this.value = visitor.visit(value); - } - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index, - this.currentFileInfo); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env), this.currentFileInfo, this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value === '' && this.combinator.value.charAt(0) === '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - _outputMap: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : ' + ', - '~' : ' ~ ', - '>' : ' > ', - '|' : '|', - '^' : ' ^ ', - '^^' : ' ^^ ' - }, - _outputMapCompressed: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : '+', - '~' : '~', - '>' : '>', - '|' : '|', - '^' : '^', - '^^' : '^^' - }, - genCSS: function (env, output) { - output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - genCSS: function (env, output) { - for(var i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i + 1 < this.value.length) { - output.add(" "); - } - } - }, - toCSS: tree.toCSS, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - this.object_id = tree.Extend.next_id++; - this.parent_ids = [this.object_id]; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; -tree.Extend.next_id = 0; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i, - selectorElements; - - for(i = 0; i < selectors.length; i++) { - selectorElements = selectors[i].elements; - // duplicate the logic in genCSS function inside the selector node. - // future TODO - move both logics into the selector joiner visitor - if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") { - selectorElements[0].combinator.value = ' '; - } - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); - -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined || this.options.inline) { - this.css = !this.options.less || this.options.inline; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - this.path = visitor.visit(this.path); - if (!this.options.inline && this.root) { - this.root = visitor.visit(this.root); - } - }, - genCSS: function (env, output) { - if (this.css) { - output.add("@import ", this.currentFileInfo, this.index); - this.path.genCSS(env, output); - if (this.features) { - output.add(" "); - this.features.genCSS(env, output); - } - output.add(';'); - } - }, - toCSS: tree.toCSS, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - - if (!(path instanceof tree.URL)) { - if (rootpath) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath +pathValue; - } - } - path.value = env.normalizePath(path.value); - } - - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { return []; } - - if (this.options.inline) { - //todo needs to reference css file not import - var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true); - return this.features ? new(tree.Media)([contents], this.features.value) : [contents]; - } else if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" , - index: this.index }; - } - - var variables = env.frames[0].variables(); - for (var k in variables) { - if (variables.hasOwnProperty(k)) { - /*jshint loopfunc:true */ - context[k.slice(1)] = { - value: variables[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message.replace(/["]/g, "'") + "'" , - index: this.index }; - } - if (typeof(result) === 'number') { - return new(tree.Dimension)(result); - } else if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Keyword = function (value) { this.value = value; }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); - -(function (tree) { - -tree.Media = function (value, features, index, currentFileInfo) { - this.index = index; - this.currentFileInfo = currentFileInfo; - - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.rules = [new(tree.Ruleset)(selectors, value)]; - this.rules[0].allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - }, - genCSS: function (env, output) { - output.add('@media ', this.currentFileInfo, this.index); - this.features.genCSS(env, output); - tree.outputRuleset(env, output, this.rules); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)(null, [], this.index, this.currentFileInfo); - if(this.debugInfo) { - this.rules[0].debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.rules[0]); - media.rules = [this.rules[0].eval(env)]; - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env); - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', this.index, this.currentFileInfo), - sels = [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)]; - sels[0].mediaEmpty = true; - return sels; - }, - markReferenced: function () { - var i, rules = this.rules[0].rules; - this.isReferenced = true; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])]; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = (args && args.length) ? args : null; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - if (this.selector) { - this.selector = visitor.visit(this.selector); - } - if (this.arguments) { - this.arguments = visitor.visitArray(this.arguments); - } - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule, - candidates = [], candidate, conditionResult = [], defaultFunc = tree.defaultFunc, - defaultResult, defNone = 0, defTrue = 1, defFalse = 2, count; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - - // To make `default()` function independent of definition order we have two "subpasses" here. - // At first we evaluate each guard *twice* (with `default() == true` and `default() == false`), - // and build candidate list with corresponding flags. Then, when we know all possible matches, - // we make a final decision. - - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - - if (mixin.matchArgs(args, env)) { - candidate = {mixin: mixin, group: defNone}; - - if (mixin.matchCondition) { - for (f = 0; f < 2; f++) { - defaultFunc.value(f); - conditionResult[f] = mixin.matchCondition(args, env); - } - if (conditionResult[0] || conditionResult[1]) { - if (conditionResult[0] != conditionResult[1]) { - candidate.group = conditionResult[1] ? - defTrue : defFalse; - } - - candidates.push(candidate); - } - } - else { - candidates.push(candidate); - } - - match = true; - } - } - - defaultFunc.reset(); - - count = [0, 0, 0]; - for (m = 0; m < candidates.length; m++) { - count[candidates[m].group]++; - } - - if (count[defNone] > 0) { - defaultResult = defFalse; - } else { - defaultResult = defTrue; - if ((count[defTrue] + count[defFalse]) > 1) { - throw { type: 'Runtime', - message: 'Ambiguous use of `default()` found when matching for `' - + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - for (m = 0; m < candidates.length; m++) { - candidate = candidates[m].group; - if ((candidate === defNone) || (candidate === defaultResult)) { - try { - mixin = candidates[m].mixin; - if (!(mixin instanceof tree.mixin.Definition)) { - mixin = new tree.mixin.Definition("", [], mixin.rules, null, false); - mixin.originalRuleset = mixins[m].originalRuleset || mixins[m]; - } - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - } - - if (match) { - if (!this.currentFileInfo || !this.currentFileInfo.reference) { - for (i = 0; i < rules.length; i++) { - rule = rules[i]; - if (rule.markReferenced) { - rule.markReferenced(); - } - } - } - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - }, - format: function (args) { - return this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")"; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1; } - else { return count; } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - if (this.params && this.params.length) { - this.params = visitor.visitArray(this.params); - } - this.rules = visitor.visitArray(this.rules); - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - /*jshint boss:true */ - var frame = new(tree.Ruleset)(null, null), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.prependRule(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) { continue; } - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.prependRule(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.prependRule(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - rules, ruleset; - - frame.prependRule(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules); - ruleset.originalRuleset = this; - ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames))); - if (important) { - ruleset = this.parent.makeImportant.apply(ruleset); - } - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] // the parameter variables - .concat(this.frames) // the parent namespace/mixin frames - .concat(env.frames)))) { // the current environment frames - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (! this.variadic) { - if (argsLength < this.required) { return false; } - if (argsLength > this.params.length) { return false; } - } else { - if (argsLength < (this.required - 1)) { return false; } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('-'); - this.value.genCSS(env, output); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env); - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - a = a.toColor(); - } - if (b instanceof tree.Dimension && a instanceof tree.Color) { - b = b.toColor(); - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - genCSS: function (env, output) { - this.operands[0].genCSS(env, output); - if (this.isSpaced) { - output.add(" "); - } - output.add(this.op); - if (this.isSpaced) { - output.add(" "); - } - this.operands[1].genCSS(env, output); - }, - toCSS: tree.toCSS -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('('); - this.value.genCSS(env, output); - output.add(')'); - }, - toCSS: tree.toCSS, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - genCSS: function (env, output) { - if (!this.escaped) { - output.add(this.quote, this.currentFileInfo, this.index); - } - output.add(this.value); - if (!this.escaped) { - output.add(this.quote); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.merge = merge; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - this.variable = name.charAt && (name.charAt(0) === '@'); -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index); - try { - this.value.genCSS(env, output); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index); - }, - toCSS: tree.toCSS, - eval: function (env) { - var strictMathBypass = false, name = this.name; - if (typeof name !== "string") { - // expand 'primitive' name directly to get - // things faster (~10% for benchmark.less): - name = (name.length === 1) - && (name[0] instanceof tree.Keyword) - ? name[0].value : evalName(env, name); - } - if (name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - return new(tree.Rule)(name, - this.value.eval(env), - this.important, - this.merge, - this.index, this.currentFileInfo, this.inline); - } - catch(e) { - e.index = e.index || this.index; - throw e; - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.merge, - this.index, this.currentFileInfo, this.inline); - } -}; - -function evalName(env, name) { - var value = "", i, n = name.length, - output = {add: function (s) {value += s;}}; - for (i = 0; i < n; i++) { - name[i].eval(env).genCSS(env, output); - } - return value; -} - -})(require('../tree')); - -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - if (this.paths) { - visitor.visitArray(this.paths, true); - } else if (this.selectors) { - this.selectors = visitor.visitArray(this.selectors); - } - if (this.rules && this.rules.length) { - this.rules = visitor.visitArray(this.rules); - } - }, - eval: function (env) { - var thisSelectors = this.selectors, selectors, - selCnt, i, defaultFunc = tree.defaultFunc; - if (thisSelectors && (selCnt = thisSelectors.length)) { - selectors = []; - defaultFunc.error({ - type: "Syntax", - message: "it is currently only allowed in parametric mixin guards," - }); - for (i = 0; i < selCnt; i++) { - selectors.push(thisSelectors[i].eval(env)); - } - defaultFunc.reset(); - } - - var rules = this.rules ? this.rules.slice(0) : null, - ruleset = new(tree.Ruleset)(selectors, rules, this.strictImports), - rule, subRule; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - var envFrames = env.frames; - envFrames.unshift(ruleset); - - // currrent selectors - var envSelectors = env.selectors; - if (!envSelectors) { - env.selectors = envSelectors = []; - } - envSelectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - var rsRules = ruleset.rules, rsRuleCnt = rsRules ? rsRules.length : 0; - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Definition) { - rsRules[i].frames = envFrames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Call) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (i = 0; i < rsRules.length; i++) { - rule = rsRules[i]; - if (! (rule instanceof tree.mixin.Definition)) { - rsRules[i] = rule = rule.eval ? rule.eval(env) : rule; - // for rulesets, check if it is a css guard and can be removed - if (rule instanceof tree.Ruleset && rule.selectors && rule.selectors.length === 1) { - // check if it can be folded in (e.g. & where) - if (rule.selectors[0].isJustParentSelector()) { - rsRules.splice(i--, 1); - // cannot call if there is no selector, so we can just continue - if (!rule.selectors[0].evaldCondition) { - continue; - } - for(var j = 0; j < rule.rules.length; j++) { - subRule = rule.rules[j]; - if (!(subRule instanceof tree.Rule) || !subRule.variable) { - rsRules.splice(++i, 0, subRule); - } - } - } - } - } - } - - // Pop the stack - envFrames.shift(); - envSelectors.shift(); - - if (env.mediaBlocks) { - for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var rules = this.rules, i, importRules; - if (!rules) { return; } - - for (i = 0; i < rules.length; i++) { - if (rules[i] instanceof tree.Import) { - importRules = rules[i].eval(env); - if (importRules && importRules.length) { - rules.splice.apply(rules, [i, 1].concat(importRules)); - i+= importRules.length-1; - } else { - rules.splice(i, 1, importRules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - // lets you call a css selector with a guard - matchCondition: function (args, env) { - var lastSelector = this.selectors[this.selectors.length-1]; - if (!lastSelector.evaldCondition) { - return false; - } - if (lastSelector.condition && - !lastSelector.condition.eval( - new(tree.evalEnv)(env, - env.frames))) { - return false; - } - return true; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (!this._variables) { - this._variables = !this.rules ? {} : this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - return this._variables; - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (!this.rules) { return null; } - - var _Ruleset = tree.Ruleset, _MixinDefinition = tree.mixin.Definition, - filtRules = [], rules = this.rules, cnt = rules.length, - i, rule; - - for (i = 0; i < cnt; i++) { - rule = rules[i]; - if ((rule instanceof _Ruleset) || (rule instanceof _MixinDefinition)) { - filtRules.push(rule); - } - } - - return filtRules; - }, - prependRule: function (rule) { - var rules = this.rules; - if (rules) { rules.unshift(rule); } else { this.rules = [ rule ]; } - }, - find: function (selector, self) { - self = self || this; - var rules = [], match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key]; } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - match = selector.match(rule.selectors[j]); - if (match) { - if (selector.elements.length > match) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(match)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - this._lookups[key] = rules; - return rules; - }, - genCSS: function (env, output) { - var i, j, - ruleNodes = [], - rulesetNodes = [], - rulesetNodeCnt, - debugInfo, // Line number debugging - rule, - path; - - env.tabLevel = (env.tabLevel || 0); - - if (!this.root) { - env.tabLevel++; - } - - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "), - sep; - - for (i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - if (rule.rules || (rule instanceof tree.Media) || rule instanceof tree.Directive || (this.root && rule instanceof tree.Comment)) { - rulesetNodes.push(rule); - } else { - ruleNodes.push(rule); - } - } - - // If this is the root node, we don't render - // a selector, or {}. - if (!this.root) { - debugInfo = tree.debugInfo(env, this, tabSetStr); - - if (debugInfo) { - output.add(debugInfo); - output.add(tabSetStr); - } - - var paths = this.paths, pathCnt = paths.length, - pathSubCnt; - - sep = env.compress ? ',' : (',\n' + tabSetStr); - - for (i = 0; i < pathCnt; i++) { - path = paths[i]; - if (!(pathSubCnt = path.length)) { continue; } - if (i > 0) { output.add(sep); } - - env.firstSelector = true; - path[0].genCSS(env, output); - - env.firstSelector = false; - for (j = 1; j < pathSubCnt; j++) { - path[j].genCSS(env, output); - } - } - - output.add((env.compress ? '{' : ' {\n') + tabRuleStr); - } - - // Compile rules and rulesets - for (i = 0; i < ruleNodes.length; i++) { - rule = ruleNodes[i]; - - // @page{ directive ends up with root elements inside it, a mix of rules and rulesets - // In this instance we do not know whether it is the last property - if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) { - env.lastRule = true; - } - - if (rule.genCSS) { - rule.genCSS(env, output); - } else if (rule.value) { - output.add(rule.value.toString()); - } - - if (!env.lastRule) { - output.add(env.compress ? '' : ('\n' + tabRuleStr)); - } else { - env.lastRule = false; - } - } - - if (!this.root) { - output.add((env.compress ? '}' : '\n' + tabSetStr + '}')); - env.tabLevel--; - } - - sep = (env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr); - rulesetNodeCnt = rulesetNodes.length; - if (rulesetNodeCnt) { - if (ruleNodes.length && sep) { output.add(sep); } - rulesetNodes[0].genCSS(env, output); - for (i = 1; i < rulesetNodeCnt; i++) { - if (sep) { output.add(sep); } - rulesetNodes[i].genCSS(env, output); - } - } - - if (!output.isEmpty() && !env.compress && this.firstRoot) { - output.add('\n'); - } - }, - - toCSS: tree.toCSS, - - markReferenced: function () { - for (var s = 0; s < this.selectors.length; s++) { - this.selectors[s].markReferenced(); - } - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for (i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for (j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length === 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', el.index, el.currentFileInfo)); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for (k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = selector.createDerived([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for (i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length === 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for (i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); - -(function (tree) { - -tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) { - this.elements = elements; - this.extendList = extendList; - this.condition = condition; - this.currentFileInfo = currentFileInfo || {}; - this.isReferenced = isReferenced; - if (!condition) { - this.evaldCondition = true; - } -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - if (this.elements) { - this.elements = visitor.visitArray(this.elements); - } - if (this.extendList) { - this.extendList = visitor.visitArray(this.extendList); - } - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - createDerived: function(elements, extendList, evaldCondition) { - evaldCondition = (evaldCondition != null) ? evaldCondition : this.evaldCondition; - var newSelector = new(tree.Selector)(elements, extendList || this.extendList, null, this.index, this.currentFileInfo, this.isReferenced); - newSelector.evaldCondition = evaldCondition; - newSelector.mediaEmpty = this.mediaEmpty; - return newSelector; - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - olen, i; - - other.CacheElements(); - - olen = other._elements.length; - if (olen === 0 || len < olen) { - return 0; - } else { - for (i = 0; i < olen; i++) { - if (elements[i].value !== other._elements[i]) { - return 0; - } - } - } - - return olen; // return number of matched elements - }, - CacheElements: function(){ - var css = '', len, v, i; - - if( !this._elements ){ - - len = this.elements.length; - for(i = 0; i < len; i++){ - - v = this.elements[i]; - css += v.combinator.value; - - if( !v.value.value ){ - css += v.value; - continue; - } - - if( typeof v.value.value !== "string" ){ - css = ''; - break; - } - css += v.value.value; - } - - this._elements = css.match(/[,&#\.\w-]([\w-]|(\\.))*/g); - - if (this._elements) { - if (this._elements[0] === "&") { - this._elements.shift(); - } - - } else { - this._elements = []; - } - - } - }, - isJustParentSelector: function() { - return !this.mediaEmpty && - this.elements.length === 1 && - this.elements[0].value === '&' && - (this.elements[0].combinator.value === ' ' || this.elements[0].combinator.value === ''); - }, - eval: function (env) { - var evaldCondition = this.condition && this.condition.eval(env), - elements = this.elements, extendList = this.extendList; - - elements = elements && elements.map(function (e) { return e.eval(env); }); - extendList = extendList && extendList.map(function(extend) { return extend.eval(env); }); - - return this.createDerived(elements, extendList, evaldCondition); - }, - genCSS: function (env, output) { - var i, element; - if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") { - output.add(' ', this.currentFileInfo, this.index); - } - if (!this._css) { - //TODO caching? speed comparison? - for(i = 0; i < this.elements.length; i++) { - element = this.elements[i]; - element.genCSS(env, output); - } - } - }, - toCSS: tree.toCSS, - markReferenced: function () { - this.isReferenced = true; - }, - getIsReferenced: function() { - return !this.currentFileInfo.reference || this.isReferenced; - }, - getIsOutput: function() { - return this.evaldCondition; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - eval: function () { return this; } -}; - -})(require('../tree')); - -(function (tree) { - -tree.URL = function (val, currentFileInfo, isEvald) { - this.value = val; - this.currentFileInfo = currentFileInfo; - this.isEvald = isEvald; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add("url("); - this.value.genCSS(env, output); - output.add(")"); - }, - toCSS: tree.toCSS, - eval: function (ctx) { - var val = this.value.eval(ctx), - rootpath; - - if (!this.isEvald) { - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - val.value = ctx.normalizePath(val.value); - - // Add url args if enabled - if (ctx.urlArgs) { - if (!val.value.match(/^\s*data:/)) { - var delimiter = val.value.indexOf('?') === -1 ? '?' : '&'; - var urlArgs = delimiter + ctx.urlArgs; - if (val.value.indexOf('#') !== -1) { - val.value = val.value.replace('#', urlArgs + '#'); - } else { - val.value += urlArgs; - } - } - } - } - - return new(tree.URL)(val, this.currentFileInfo, true); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - genCSS: function (env, output) { - var i; - for(i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i+1 < this.value.length) { - output.add((env && env.compress) ? ',' : ', '); - } - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { - this.name = name; - this.index = index; - this.currentFileInfo = currentFileInfo || {}; -}; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, name = this.name; - - if (name.indexOf('@@') === 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - variable = tree.find(env.frames, function (frame) { - var v = frame.variable(name); - if (v) { - return v.value.eval(env); - } - }); - if (variable) { - this.evaluating = false; - return variable; - } else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); - -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // map - filename to contents of all the files - 'contentsIgnoredChars', // map - filename to lines at the begining of each file to ignore - 'relativeUrls', // option - whether to adjust URL's to be relative - 'rootpath', // option - rootpath to append to URL's - 'strictImports', // option - - 'insecure', // option - whether to allow imports from insecure ssl hosts - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true - 'mime', // browser only - mime type for sheet import - 'useFileCache', // browser only - whether to use the per file session cache - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' - absolute path to the entry file - // 'reference' - whether the file should not be output and only output parts that are referenced - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.contentsIgnoredChars) { this.contentsIgnoredChars = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits', // whether units need to evaluate correctly - 'cleancss', // whether to compress with clean-css - 'sourceMap', // whether to output a source map - 'importMultiple', // whether we are currently importing multiple copies - 'urlArgs' // whether to add args into url tokens - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - tree.evalEnv.prototype.normalizePath = function( path ) { - var - segments = path.split("/").reverse(), - segment; - - path = []; - while (segments.length !== 0 ) { - segment = segments.pop(); - switch( segment ) { - case ".": - break; - case "..": - if ((path.length === 0) || (path[path.length - 1] === "..")) { - path.push( segment ); - } else { - path.pop(); - } - break; - default: - path.push( segment ); - break; - } - } - - return path.join("/"); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - }; - -})(require('./tree')); - -(function (tree) { - - var _visitArgs = { visitDeeper: true }, - _hasIndexed = false; - - function _noop(node) { - return node; - } - - function indexNodeTypes(parent, ticker) { - // add .typeIndex to tree node types for lookup table - var key, child; - for (key in parent) { - if (parent.hasOwnProperty(key)) { - child = parent[key]; - switch (typeof child) { - case "function": - // ignore bound functions directly on tree which do not have a prototype - // or aren't nodes - if (child.prototype && child.prototype.type) { - child.prototype.typeIndex = ticker++; - } - break; - case "object": - ticker = indexNodeTypes(child, ticker); - break; - } - } - } - return ticker; - } - - tree.visitor = function(implementation) { - this._implementation = implementation; - this._visitFnCache = []; - - if (!_hasIndexed) { - indexNodeTypes(tree, 1); - _hasIndexed = true; - } - }; - - tree.visitor.prototype = { - visit: function(node) { - if (!node) { - return node; - } - - var nodeTypeIndex = node.typeIndex; - if (!nodeTypeIndex) { - return node; - } - - var visitFnCache = this._visitFnCache, - impl = this._implementation, - aryIndx = nodeTypeIndex << 1, - outAryIndex = aryIndx | 1, - func = visitFnCache[aryIndx], - funcOut = visitFnCache[outAryIndex], - visitArgs = _visitArgs, - fnName; - - visitArgs.visitDeeper = true; - - if (!func) { - fnName = "visit" + node.type; - func = impl[fnName] || _noop; - funcOut = impl[fnName + "Out"] || _noop; - visitFnCache[aryIndx] = func; - visitFnCache[outAryIndex] = funcOut; - } - - if (func !== _noop) { - var newNode = func.call(impl, node, visitArgs); - if (impl.isReplacing) { - node = newNode; - } - } - - if (visitArgs.visitDeeper && node && node.accept) { - node.accept(this); - } - - if (funcOut != _noop) { - funcOut.call(impl, node); - } - - return node; - }, - visitArray: function(nodes, nonReplacing) { - if (!nodes) { - return nodes; - } - - var cnt = nodes.length, i; - - // Non-replacing - if (nonReplacing || !this._implementation.isReplacing) { - for (i = 0; i < cnt; i++) { - this.visit(nodes[i]); - } - return nodes; - } - - // Replacing - var out = []; - for (i = 0; i < cnt; i++) { - var evald = this.visit(nodes[i]); - if (!evald.splice) { - out.push(evald); - } else if (evald.length) { - this.flatten(evald, out); - } - } - return out; - }, - flatten: function(arr, out) { - if (!out) { - out = []; - } - - var cnt, i, item, - nestedCnt, j, nestedItem; - - for (i = 0, cnt = arr.length; i < cnt; i++) { - item = arr[i]; - if (!item.splice) { - out.push(item); - continue; - } - - for (j = 0, nestedCnt = item.length; j < nestedCnt; j++) { - nestedItem = item[j]; - if (!nestedItem.splice) { - out.push(nestedItem); - } else if (nestedItem.length) { - this.flatten(nestedItem, out); - } - } - } - - return out; - } - }; - -})(require('./tree')); -(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode, - inlineCSS = importNode.options.inline; - - if (!importNode.css || inlineCSS) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - - if (importNode.options.multiple) { - env.importMultiple = true; - } - - this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, imported, fullPath) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - - if (imported && !env.importMultiple) { importNode.skip = imported; } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - importNode.importedFilename = fullPath; - if (!inlineCSS && !importNode.skip) { - new(tree.importVisitor)(importVisitor._importer, subFinish, env) - .run(root); - return; - } - } - - subFinish(); - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree')); -(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1], - paths = [], selectors; - - this.contexts.push(paths); - - if (! rulesetNode.root) { - selectors = rulesetNode.selectors; - if (selectors) { - selectors = selectors.filter(function(selector) { return selector.getIsOutput(); }); - rulesetNode.selectors = selectors.length ? selectors : (selectors = null); - if (selectors) { rulesetNode.joinSelectors(paths, context, selectors); } - } - if (!selectors) { rulesetNode.rules = null; } - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree')); -(function (tree) { - tree.toCSSVisitor = function(env) { - this._visitor = new tree.visitor(this); - this._env = env; - }; - - tree.toCSSVisitor.prototype = { - isReplacing: true, - run: function (root) { - return this._visitor.visit(root); - }, - - visitRule: function (ruleNode, visitArgs) { - if (ruleNode.variable) { - return []; - } - return ruleNode; - }, - - visitMixinDefinition: function (mixinNode, visitArgs) { - return []; - }, - - visitExtend: function (extendNode, visitArgs) { - return []; - }, - - visitComment: function (commentNode, visitArgs) { - if (commentNode.isSilent(this._env)) { - return []; - } - return commentNode; - }, - - visitMedia: function(mediaNode, visitArgs) { - mediaNode.accept(this._visitor); - visitArgs.visitDeeper = false; - - if (!mediaNode.rules.length) { - return []; - } - return mediaNode; - }, - - visitDirective: function(directiveNode, visitArgs) { - if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) { - return []; - } - if (directiveNode.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (this.charset) { - if (directiveNode.debugInfo) { - var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n"); - comment.debugInfo = directiveNode.debugInfo; - return this._visitor.visit(comment); - } - return []; - } - this.charset = true; - } - return directiveNode; - }, - - checkPropertiesInRoot: function(rules) { - var ruleNode; - for(var i = 0; i < rules.length; i++) { - ruleNode = rules[i]; - if (ruleNode instanceof tree.Rule && !ruleNode.variable) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null}; - } - } - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var rule, rulesets = []; - if (rulesetNode.firstRoot) { - this.checkPropertiesInRoot(rulesetNode.rules); - } - if (! rulesetNode.root) { - if (rulesetNode.paths) { - rulesetNode.paths = rulesetNode.paths - .filter(function(p) { - var i; - if (p[0].elements[0].combinator.value === ' ') { - p[0].elements[0].combinator = new(tree.Combinator)(''); - } - for(i = 0; i < p.length; i++) { - if (p[i].getIsReferenced() && p[i].getIsOutput()) { - return true; - } - } - return false; - }); - } - - // Compile rules and rulesets - var nodeRules = rulesetNode.rules, nodeRuleCnt = nodeRules ? nodeRules.length : 0; - for (var i = 0; i < nodeRuleCnt; ) { - rule = nodeRules[i]; - if (rule && rule.rules) { - // visit because we are moving them out from being a child - rulesets.push(this._visitor.visit(rule)); - nodeRules.splice(i, 1); - nodeRuleCnt--; - continue; - } - i++; - } - // accept the visitor to remove rules and refactor itself - // then we can decide now whether we want it or not - if (nodeRuleCnt > 0) { - rulesetNode.accept(this._visitor); - } else { - rulesetNode.rules = null; - } - visitArgs.visitDeeper = false; - - nodeRules = rulesetNode.rules; - if (nodeRules) { - this._mergeRules(nodeRules); - nodeRules = rulesetNode.rules; - } - if (nodeRules) { - this._removeDuplicateRules(nodeRules); - nodeRules = rulesetNode.rules; - } - - // now decide whether we keep the ruleset - if (nodeRules && nodeRules.length > 0 && rulesetNode.paths.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } else { - rulesetNode.accept(this._visitor); - visitArgs.visitDeeper = false; - if (rulesetNode.firstRoot || (rulesetNode.rules && rulesetNode.rules.length > 0)) { - rulesets.splice(0, 0, rulesetNode); - } - } - if (rulesets.length === 1) { - return rulesets[0]; - } - return rulesets; - }, - - _removeDuplicateRules: function(rules) { - if (!rules) { return; } - - // remove duplicates - var ruleCache = {}, - ruleList, rule, i; - - for(i = rules.length - 1; i >= 0 ; i--) { - rule = rules[i]; - if (rule instanceof tree.Rule) { - if (!ruleCache[rule.name]) { - ruleCache[rule.name] = rule; - } else { - ruleList = ruleCache[rule.name]; - if (ruleList instanceof tree.Rule) { - ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)]; - } - var ruleCSS = rule.toCSS(this._env); - if (ruleList.indexOf(ruleCSS) !== -1) { - rules.splice(i, 1); - } else { - ruleList.push(ruleCSS); - } - } - } - } - }, - - _mergeRules: function (rules) { - if (!rules) { return; } - - var groups = {}, - parts, - rule, - key; - - for (var i = 0; i < rules.length; i++) { - rule = rules[i]; - - if ((rule instanceof tree.Rule) && rule.merge) { - key = [rule.name, - rule.important ? "!" : ""].join(","); - - if (!groups[key]) { - groups[key] = []; - } else { - rules.splice(i--, 1); - } - - groups[key].push(rule); - } - } - - Object.keys(groups).map(function (k) { - parts = groups[k]; - - if (parts.length > 1) { - rule = parts[0]; - - rule.value = new (tree.Value)(parts.map(function (p) { - return p.value; - })); - } - }); - } - }; - -})(require('./tree')); -(function (tree) { - /*jshint loopfunc:true */ - - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - var rules = rulesetNode.rules, ruleCnt = rules ? rules.length : 0; - for(i = 0; i < ruleCnt; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rules[i]); - rulesetNode.extendOnEveryPath = true; - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - var paths = rulesetNode.paths; - for(i = 0; i < paths.length; i++) { - var selectorPath = paths[i], - selector = selectorPath[selectorPath.length - 1], - selExtendList = selector.extendList; - - extendList = selExtendList ? selExtendList.slice(0).concat(allSelectorsExtendList) - : allSelectorsExtendList; - - if (extendList) { - extendList = extendList.map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - } - - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if( extend.parent_ids.indexOf( targetExtend.object_id ) >= 0 ){ continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parent_ids = newExtend.parent_ids.concat(targetExtend.parent_ids, extend.parent_ids); - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (rulesetNode.extendOnEveryPath) { continue; } - var extendList = selectorPath[selectorPath.length-1].extendList; - if (extendList && extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator === '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - elementValue1 = elementValue1.value; - elementValue2 = elementValue2.value; - if (elementValue1 instanceof tree.Selector) { - if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) { - return false; - } - for(var i = 0; i currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - newElements = selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)); - - if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) { - path[path.length - 1].elements = - path[path.length - 1].elements.concat(newElements); - } else { - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - newElements - )); - } - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.sourceMapOutput = function (options) { - this._css = []; - this._rootNode = options.rootNode; - this._writeSourceMap = options.writeSourceMap; - this._contentsMap = options.contentsMap; - this._contentsIgnoredCharsMap = options.contentsIgnoredCharsMap; - this._sourceMapFilename = options.sourceMapFilename; - this._outputFilename = options.outputFilename; - this._sourceMapURL = options.sourceMapURL; - if (options.sourceMapBasepath) { - this._sourceMapBasepath = options.sourceMapBasepath.replace(/\\/g, '/'); - } - this._sourceMapRootpath = options.sourceMapRootpath; - this._outputSourceFiles = options.outputSourceFiles; - this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator; - - if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') { - this._sourceMapRootpath += '/'; - } - - this._lineNumber = 0; - this._column = 0; - }; - - tree.sourceMapOutput.prototype.normalizeFilename = function(filename) { - filename = filename.replace(/\\/g, '/'); - - if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) { - filename = filename.substring(this._sourceMapBasepath.length); - if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') { - filename = filename.substring(1); - } - } - return (this._sourceMapRootpath || "") + filename; - }; - - tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) { - - //ignore adding empty strings - if (!chunk) { - return; - } - - var lines, - sourceLines, - columns, - sourceColumns, - i; - - if (fileInfo) { - var inputSource = this._contentsMap[fileInfo.filename]; - - // remove vars/banner added to the top of the file - if (this._contentsIgnoredCharsMap[fileInfo.filename]) { - // adjust the index - index -= this._contentsIgnoredCharsMap[fileInfo.filename]; - if (index < 0) { index = 0; } - // adjust the source - inputSource = inputSource.slice(this._contentsIgnoredCharsMap[fileInfo.filename]); - } - inputSource = inputSource.substring(0, index); - sourceLines = inputSource.split("\n"); - sourceColumns = sourceLines[sourceLines.length-1]; - } - - lines = chunk.split("\n"); - columns = lines[lines.length-1]; - - if (fileInfo) { - if (!mapLines) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column}, - original: { line: sourceLines.length, column: sourceColumns.length}, - source: this.normalizeFilename(fileInfo.filename)}); - } else { - for(i = 0; i < lines.length; i++) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0}, - original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0}, - source: this.normalizeFilename(fileInfo.filename)}); - } - } - } - - if (lines.length === 1) { - this._column += columns.length; - } else { - this._lineNumber += lines.length - 1; - this._column = columns.length; - } - - this._css.push(chunk); - }; - - tree.sourceMapOutput.prototype.isEmpty = function() { - return this._css.length === 0; - }; - - tree.sourceMapOutput.prototype.toCSS = function(env) { - this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null }); - - if (this._outputSourceFiles) { - for(var filename in this._contentsMap) { - if (this._contentsMap.hasOwnProperty(filename)) - { - var source = this._contentsMap[filename]; - if (this._contentsIgnoredCharsMap[filename]) { - source = source.slice(this._contentsIgnoredCharsMap[filename]); - } - this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), source); - } - } - } - - this._rootNode.genCSS(env, this); - - if (this._css.length > 0) { - var sourceMapURL, - sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); - - if (this._sourceMapURL) { - sourceMapURL = this._sourceMapURL; - } else if (this._sourceMapFilename) { - sourceMapURL = this.normalizeFilename(this._sourceMapFilename); - } - - if (this._writeSourceMap) { - this._writeSourceMap(sourceMapContent); - } else { - sourceMapURL = "data:application/json," + encodeURIComponent(sourceMapContent); - } - - if (sourceMapURL) { - this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */"); - } - } - - return this._css.join(''); - }; - -})(require('./tree')); - -// wraps the source-map code in a less module -(function() { - less.modules["source-map"] = function() { - -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ - -/** - * Define a module along with a payload. - * @param {string} moduleName Name for the payload - * @param {ignored} deps Ignored. For compatibility with CommonJS AMD Spec - * @param {function} payload Function with (require, exports, module) params - */ -function define(moduleName, deps, payload) { - if (typeof moduleName != "string") { - throw new TypeError('Expected string, got: ' + moduleName); - } - - if (arguments.length == 2) { - payload = deps; - } - - if (moduleName in define.modules) { - throw new Error("Module already defined: " + moduleName); - } - define.modules[moduleName] = payload; -}; - -/** - * The global store of un-instantiated modules - */ -define.modules = {}; - - -/** - * We invoke require() in the context of a Domain so we can have multiple - * sets of modules running separate from each other. - * This contrasts with JSMs which are singletons, Domains allows us to - * optionally load a CommonJS module twice with separate data each time. - * Perhaps you want 2 command lines with a different set of commands in each, - * for example. - */ -function Domain() { - this.modules = {}; - this._currentModule = null; -} - -(function () { - - /** - * Lookup module names and resolve them by calling the definition function if - * needed. - * There are 2 ways to call this, either with an array of dependencies and a - * callback to call when the dependencies are found (which can happen - * asynchronously in an in-page context) or with a single string an no callback - * where the dependency is resolved synchronously and returned. - * The API is designed to be compatible with the CommonJS AMD spec and - * RequireJS. - * @param {string[]|string} deps A name, or names for the payload - * @param {function|undefined} callback Function to call when the dependencies - * are resolved - * @return {undefined|object} The module required or undefined for - * array/callback method - */ - Domain.prototype.require = function(deps, callback) { - if (Array.isArray(deps)) { - var params = deps.map(function(dep) { - return this.lookup(dep); - }, this); - if (callback) { - callback.apply(null, params); - } - return undefined; - } - else { - return this.lookup(deps); - } - }; - - function normalize(path) { - var bits = path.split('/'); - var i = 1; - while (i < bits.length) { - if (bits[i] === '..') { - bits.splice(i-1, 1); - } else if (bits[i] === '.') { - bits.splice(i, 1); - } else { - i++; - } - } - return bits.join('/'); - } - - function join(a, b) { - a = a.trim(); - b = b.trim(); - if (/^\//.test(b)) { - return b; - } else { - return a.replace(/\/*$/, '/') + b; - } - } - - function dirname(path) { - var bits = path.split('/'); - bits.pop(); - return bits.join('/'); - } - - /** - * Lookup module names and resolve them by calling the definition function if - * needed. - * @param {string} moduleName A name for the payload to lookup - * @return {object} The module specified by aModuleName or null if not found. - */ - Domain.prototype.lookup = function(moduleName) { - if (/^\./.test(moduleName)) { - moduleName = normalize(join(dirname(this._currentModule), moduleName)); - } - - if (moduleName in this.modules) { - var module = this.modules[moduleName]; - return module; - } - - if (!(moduleName in define.modules)) { - throw new Error("Module not defined: " + moduleName); - } - - var module = define.modules[moduleName]; - - if (typeof module == "function") { - var exports = {}; - var previousModule = this._currentModule; - this._currentModule = moduleName; - module(this.require.bind(this), exports, { id: moduleName, uri: "" }); - this._currentModule = previousModule; - module = exports; - } - - // cache the resulting module object for next time - this.modules[moduleName] = module; - - return module; - }; - -}()); - -define.Domain = Domain; -define.globalDomain = new Domain(); -var require = define.globalDomain.require.bind(define.globalDomain); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/source-map-generator', ['require', 'exports', 'module' , 'source-map/base64-vlq', 'source-map/util', 'source-map/array-set'], function(require, exports, module) { - - var base64VLQ = require('./base64-vlq'); - var util = require('./util'); - var ArraySet = require('./array-set').ArraySet; - - /** - * An instance of the SourceMapGenerator represents a source map which is - * being built incrementally. To create a new one, you must pass an object - * with the following properties: - * - * - file: The filename of the generated source. - * - sourceRoot: An optional root for all URLs in this source map. - */ - function SourceMapGenerator(aArgs) { - this._file = util.getArg(aArgs, 'file'); - this._sourceRoot = util.getArg(aArgs, 'sourceRoot', null); - this._sources = new ArraySet(); - this._names = new ArraySet(); - this._mappings = []; - this._sourcesContents = null; - } - - SourceMapGenerator.prototype._version = 3; - - /** - * Creates a new SourceMapGenerator based on a SourceMapConsumer - * - * @param aSourceMapConsumer The SourceMap. - */ - SourceMapGenerator.fromSourceMap = - function SourceMapGenerator_fromSourceMap(aSourceMapConsumer) { - var sourceRoot = aSourceMapConsumer.sourceRoot; - var generator = new SourceMapGenerator({ - file: aSourceMapConsumer.file, - sourceRoot: sourceRoot - }); - aSourceMapConsumer.eachMapping(function (mapping) { - var newMapping = { - generated: { - line: mapping.generatedLine, - column: mapping.generatedColumn - } - }; - - if (mapping.source) { - newMapping.source = mapping.source; - if (sourceRoot) { - newMapping.source = util.relative(sourceRoot, newMapping.source); - } - - newMapping.original = { - line: mapping.originalLine, - column: mapping.originalColumn - }; - - if (mapping.name) { - newMapping.name = mapping.name; - } - } - - generator.addMapping(newMapping); - }); - aSourceMapConsumer.sources.forEach(function (sourceFile) { - var content = aSourceMapConsumer.sourceContentFor(sourceFile); - if (content) { - generator.setSourceContent(sourceFile, content); - } - }); - return generator; - }; - - /** - * Add a single mapping from original source line and column to the generated - * source's line and column for this source map being created. The mapping - * object should have the following properties: - * - * - generated: An object with the generated line and column positions. - * - original: An object with the original line and column positions. - * - source: The original source file (relative to the sourceRoot). - * - name: An optional original token name for this mapping. - */ - SourceMapGenerator.prototype.addMapping = - function SourceMapGenerator_addMapping(aArgs) { - var generated = util.getArg(aArgs, 'generated'); - var original = util.getArg(aArgs, 'original', null); - var source = util.getArg(aArgs, 'source', null); - var name = util.getArg(aArgs, 'name', null); - - this._validateMapping(generated, original, source, name); - - if (source && !this._sources.has(source)) { - this._sources.add(source); - } - - if (name && !this._names.has(name)) { - this._names.add(name); - } - - this._mappings.push({ - generatedLine: generated.line, - generatedColumn: generated.column, - originalLine: original != null && original.line, - originalColumn: original != null && original.column, - source: source, - name: name - }); - }; - - /** - * Set the source content for a source file. - */ - SourceMapGenerator.prototype.setSourceContent = - function SourceMapGenerator_setSourceContent(aSourceFile, aSourceContent) { - var source = aSourceFile; - if (this._sourceRoot) { - source = util.relative(this._sourceRoot, source); - } - - if (aSourceContent !== null) { - // Add the source content to the _sourcesContents map. - // Create a new _sourcesContents map if the property is null. - if (!this._sourcesContents) { - this._sourcesContents = {}; - } - this._sourcesContents[util.toSetString(source)] = aSourceContent; - } else { - // Remove the source file from the _sourcesContents map. - // If the _sourcesContents map is empty, set the property to null. - delete this._sourcesContents[util.toSetString(source)]; - if (Object.keys(this._sourcesContents).length === 0) { - this._sourcesContents = null; - } - } - }; - - /** - * Applies the mappings of a sub-source-map for a specific source file to the - * source map being generated. Each mapping to the supplied source file is - * rewritten using the supplied source map. Note: The resolution for the - * resulting mappings is the minimium of this map and the supplied map. - * - * @param aSourceMapConsumer The source map to be applied. - * @param aSourceFile Optional. The filename of the source file. - * If omitted, SourceMapConsumer's file property will be used. - */ - SourceMapGenerator.prototype.applySourceMap = - function SourceMapGenerator_applySourceMap(aSourceMapConsumer, aSourceFile) { - // If aSourceFile is omitted, we will use the file property of the SourceMap - if (!aSourceFile) { - aSourceFile = aSourceMapConsumer.file; - } - var sourceRoot = this._sourceRoot; - // Make "aSourceFile" relative if an absolute Url is passed. - if (sourceRoot) { - aSourceFile = util.relative(sourceRoot, aSourceFile); - } - // Applying the SourceMap can add and remove items from the sources and - // the names array. - var newSources = new ArraySet(); - var newNames = new ArraySet(); - - // Find mappings for the "aSourceFile" - this._mappings.forEach(function (mapping) { - if (mapping.source === aSourceFile && mapping.originalLine) { - // Check if it can be mapped by the source map, then update the mapping. - var original = aSourceMapConsumer.originalPositionFor({ - line: mapping.originalLine, - column: mapping.originalColumn - }); - if (original.source !== null) { - // Copy mapping - if (sourceRoot) { - mapping.source = util.relative(sourceRoot, original.source); - } else { - mapping.source = original.source; - } - mapping.originalLine = original.line; - mapping.originalColumn = original.column; - if (original.name !== null && mapping.name !== null) { - // Only use the identifier name if it's an identifier - // in both SourceMaps - mapping.name = original.name; - } - } - } - - var source = mapping.source; - if (source && !newSources.has(source)) { - newSources.add(source); - } - - var name = mapping.name; - if (name && !newNames.has(name)) { - newNames.add(name); - } - - }, this); - this._sources = newSources; - this._names = newNames; - - // Copy sourcesContents of applied map. - aSourceMapConsumer.sources.forEach(function (sourceFile) { - var content = aSourceMapConsumer.sourceContentFor(sourceFile); - if (content) { - if (sourceRoot) { - sourceFile = util.relative(sourceRoot, sourceFile); - } - this.setSourceContent(sourceFile, content); - } - }, this); - }; - - /** - * A mapping can have one of the three levels of data: - * - * 1. Just the generated position. - * 2. The Generated position, original position, and original source. - * 3. Generated and original position, original source, as well as a name - * token. - * - * To maintain consistency, we validate that any new mapping being added falls - * in to one of these categories. - */ - SourceMapGenerator.prototype._validateMapping = - function SourceMapGenerator_validateMapping(aGenerated, aOriginal, aSource, - aName) { - if (aGenerated && 'line' in aGenerated && 'column' in aGenerated - && aGenerated.line > 0 && aGenerated.column >= 0 - && !aOriginal && !aSource && !aName) { - // Case 1. - return; - } - else if (aGenerated && 'line' in aGenerated && 'column' in aGenerated - && aOriginal && 'line' in aOriginal && 'column' in aOriginal - && aGenerated.line > 0 && aGenerated.column >= 0 - && aOriginal.line > 0 && aOriginal.column >= 0 - && aSource) { - // Cases 2 and 3. - return; - } - else { - throw new Error('Invalid mapping: ' + JSON.stringify({ - generated: aGenerated, - source: aSource, - original: aOriginal, - name: aName - })); - } - }; - - /** - * Serialize the accumulated mappings in to the stream of base 64 VLQs - * specified by the source map format. - */ - SourceMapGenerator.prototype._serializeMappings = - function SourceMapGenerator_serializeMappings() { - var previousGeneratedColumn = 0; - var previousGeneratedLine = 1; - var previousOriginalColumn = 0; - var previousOriginalLine = 0; - var previousName = 0; - var previousSource = 0; - var result = ''; - var mapping; - - // The mappings must be guaranteed to be in sorted order before we start - // serializing them or else the generated line numbers (which are defined - // via the ';' separators) will be all messed up. Note: it might be more - // performant to maintain the sorting as we insert them, rather than as we - // serialize them, but the big O is the same either way. - this._mappings.sort(util.compareByGeneratedPositions); - - for (var i = 0, len = this._mappings.length; i < len; i++) { - mapping = this._mappings[i]; - - if (mapping.generatedLine !== previousGeneratedLine) { - previousGeneratedColumn = 0; - while (mapping.generatedLine !== previousGeneratedLine) { - result += ';'; - previousGeneratedLine++; - } - } - else { - if (i > 0) { - if (!util.compareByGeneratedPositions(mapping, this._mappings[i - 1])) { - continue; - } - result += ','; - } - } - - result += base64VLQ.encode(mapping.generatedColumn - - previousGeneratedColumn); - previousGeneratedColumn = mapping.generatedColumn; - - if (mapping.source) { - result += base64VLQ.encode(this._sources.indexOf(mapping.source) - - previousSource); - previousSource = this._sources.indexOf(mapping.source); - - // lines are stored 0-based in SourceMap spec version 3 - result += base64VLQ.encode(mapping.originalLine - 1 - - previousOriginalLine); - previousOriginalLine = mapping.originalLine - 1; - - result += base64VLQ.encode(mapping.originalColumn - - previousOriginalColumn); - previousOriginalColumn = mapping.originalColumn; - - if (mapping.name) { - result += base64VLQ.encode(this._names.indexOf(mapping.name) - - previousName); - previousName = this._names.indexOf(mapping.name); - } - } - } - - return result; - }; - - SourceMapGenerator.prototype._generateSourcesContent = - function SourceMapGenerator_generateSourcesContent(aSources, aSourceRoot) { - return aSources.map(function (source) { - if (!this._sourcesContents) { - return null; - } - if (aSourceRoot) { - source = util.relative(aSourceRoot, source); - } - var key = util.toSetString(source); - return Object.prototype.hasOwnProperty.call(this._sourcesContents, - key) - ? this._sourcesContents[key] - : null; - }, this); - }; - - /** - * Externalize the source map. - */ - SourceMapGenerator.prototype.toJSON = - function SourceMapGenerator_toJSON() { - var map = { - version: this._version, - file: this._file, - sources: this._sources.toArray(), - names: this._names.toArray(), - mappings: this._serializeMappings() - }; - if (this._sourceRoot) { - map.sourceRoot = this._sourceRoot; - } - if (this._sourcesContents) { - map.sourcesContent = this._generateSourcesContent(map.sources, map.sourceRoot); - } - - return map; - }; - - /** - * Render the source map being generated to a string. - */ - SourceMapGenerator.prototype.toString = - function SourceMapGenerator_toString() { - return JSON.stringify(this); - }; - - exports.SourceMapGenerator = SourceMapGenerator; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - * - * Based on the Base 64 VLQ implementation in Closure Compiler: - * https://code.google.com/p/closure-compiler/source/browse/trunk/src/com/google/debugging/sourcemap/Base64VLQ.java - * - * Copyright 2011 The Closure Compiler Authors. All rights reserved. - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following - * disclaimer in the documentation and/or other materials provided - * with the distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ -define('source-map/base64-vlq', ['require', 'exports', 'module' , 'source-map/base64'], function(require, exports, module) { - - var base64 = require('./base64'); - - // A single base 64 digit can contain 6 bits of data. For the base 64 variable - // length quantities we use in the source map spec, the first bit is the sign, - // the next four bits are the actual value, and the 6th bit is the - // continuation bit. The continuation bit tells us whether there are more - // digits in this value following this digit. - // - // Continuation - // | Sign - // | | - // V V - // 101011 - - var VLQ_BASE_SHIFT = 5; - - // binary: 100000 - var VLQ_BASE = 1 << VLQ_BASE_SHIFT; - - // binary: 011111 - var VLQ_BASE_MASK = VLQ_BASE - 1; - - // binary: 100000 - var VLQ_CONTINUATION_BIT = VLQ_BASE; - - /** - * Converts from a two-complement value to a value where the sign bit is - * is placed in the least significant bit. For example, as decimals: - * 1 becomes 2 (10 binary), -1 becomes 3 (11 binary) - * 2 becomes 4 (100 binary), -2 becomes 5 (101 binary) - */ - function toVLQSigned(aValue) { - return aValue < 0 - ? ((-aValue) << 1) + 1 - : (aValue << 1) + 0; - } - - /** - * Converts to a two-complement value from a value where the sign bit is - * is placed in the least significant bit. For example, as decimals: - * 2 (10 binary) becomes 1, 3 (11 binary) becomes -1 - * 4 (100 binary) becomes 2, 5 (101 binary) becomes -2 - */ - function fromVLQSigned(aValue) { - var isNegative = (aValue & 1) === 1; - var shifted = aValue >> 1; - return isNegative - ? -shifted - : shifted; - } - - /** - * Returns the base 64 VLQ encoded value. - */ - exports.encode = function base64VLQ_encode(aValue) { - var encoded = ""; - var digit; - - var vlq = toVLQSigned(aValue); - - do { - digit = vlq & VLQ_BASE_MASK; - vlq >>>= VLQ_BASE_SHIFT; - if (vlq > 0) { - // There are still more digits in this value, so we must make sure the - // continuation bit is marked. - digit |= VLQ_CONTINUATION_BIT; - } - encoded += base64.encode(digit); - } while (vlq > 0); - - return encoded; - }; - - /** - * Decodes the next base 64 VLQ value from the given string and returns the - * value and the rest of the string. - */ - exports.decode = function base64VLQ_decode(aStr) { - var i = 0; - var strLen = aStr.length; - var result = 0; - var shift = 0; - var continuation, digit; - - do { - if (i >= strLen) { - throw new Error("Expected more digits in base 64 VLQ value."); - } - digit = base64.decode(aStr.charAt(i++)); - continuation = !!(digit & VLQ_CONTINUATION_BIT); - digit &= VLQ_BASE_MASK; - result = result + (digit << shift); - shift += VLQ_BASE_SHIFT; - } while (continuation); - - return { - value: fromVLQSigned(result), - rest: aStr.slice(i) - }; - }; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/base64', ['require', 'exports', 'module' , ], function(require, exports, module) { - - var charToIntMap = {}; - var intToCharMap = {}; - - 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/' - .split('') - .forEach(function (ch, index) { - charToIntMap[ch] = index; - intToCharMap[index] = ch; - }); - - /** - * Encode an integer in the range of 0 to 63 to a single base 64 digit. - */ - exports.encode = function base64_encode(aNumber) { - if (aNumber in intToCharMap) { - return intToCharMap[aNumber]; - } - throw new TypeError("Must be between 0 and 63: " + aNumber); - }; - - /** - * Decode a single base 64 digit to an integer. - */ - exports.decode = function base64_decode(aChar) { - if (aChar in charToIntMap) { - return charToIntMap[aChar]; - } - throw new TypeError("Not a valid base 64 digit: " + aChar); - }; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/util', ['require', 'exports', 'module' , ], function(require, exports, module) { - - /** - * This is a helper function for getting values from parameter/options - * objects. - * - * @param args The object we are extracting values from - * @param name The name of the property we are getting. - * @param defaultValue An optional value to return if the property is missing - * from the object. If this is not specified and the property is missing, an - * error will be thrown. - */ - function getArg(aArgs, aName, aDefaultValue) { - if (aName in aArgs) { - return aArgs[aName]; - } else if (arguments.length === 3) { - return aDefaultValue; - } else { - throw new Error('"' + aName + '" is a required argument.'); - } - } - exports.getArg = getArg; - - var urlRegexp = /([\w+\-.]+):\/\/((\w+:\w+)@)?([\w.]+)?(:(\d+))?(\S+)?/; - var dataUrlRegexp = /^data:.+\,.+/; - - function urlParse(aUrl) { - var match = aUrl.match(urlRegexp); - if (!match) { - return null; - } - return { - scheme: match[1], - auth: match[3], - host: match[4], - port: match[6], - path: match[7] - }; - } - exports.urlParse = urlParse; - - function urlGenerate(aParsedUrl) { - var url = aParsedUrl.scheme + "://"; - if (aParsedUrl.auth) { - url += aParsedUrl.auth + "@" - } - if (aParsedUrl.host) { - url += aParsedUrl.host; - } - if (aParsedUrl.port) { - url += ":" + aParsedUrl.port - } - if (aParsedUrl.path) { - url += aParsedUrl.path; - } - return url; - } - exports.urlGenerate = urlGenerate; - - function join(aRoot, aPath) { - var url; - - if (aPath.match(urlRegexp) || aPath.match(dataUrlRegexp)) { - return aPath; - } - - if (aPath.charAt(0) === '/' && (url = urlParse(aRoot))) { - url.path = aPath; - return urlGenerate(url); - } - - return aRoot.replace(/\/$/, '') + '/' + aPath; - } - exports.join = join; - - /** - * Because behavior goes wacky when you set `__proto__` on objects, we - * have to prefix all the strings in our set with an arbitrary character. - * - * See https://github.com/mozilla/source-map/pull/31 and - * https://github.com/mozilla/source-map/issues/30 - * - * @param String aStr - */ - function toSetString(aStr) { - return '$' + aStr; - } - exports.toSetString = toSetString; - - function fromSetString(aStr) { - return aStr.substr(1); - } - exports.fromSetString = fromSetString; - - function relative(aRoot, aPath) { - aRoot = aRoot.replace(/\/$/, ''); - - var url = urlParse(aRoot); - if (aPath.charAt(0) == "/" && url && url.path == "/") { - return aPath.slice(1); - } - - return aPath.indexOf(aRoot + '/') === 0 - ? aPath.substr(aRoot.length + 1) - : aPath; - } - exports.relative = relative; - - function strcmp(aStr1, aStr2) { - var s1 = aStr1 || ""; - var s2 = aStr2 || ""; - return (s1 > s2) - (s1 < s2); - } - - /** - * Comparator between two mappings where the original positions are compared. - * - * Optionally pass in `true` as `onlyCompareGenerated` to consider two - * mappings with the same original source/line/column, but different generated - * line and column the same. Useful when searching for a mapping with a - * stubbed out mapping. - */ - function compareByOriginalPositions(mappingA, mappingB, onlyCompareOriginal) { - var cmp; - - cmp = strcmp(mappingA.source, mappingB.source); - if (cmp) { - return cmp; - } - - cmp = mappingA.originalLine - mappingB.originalLine; - if (cmp) { - return cmp; - } - - cmp = mappingA.originalColumn - mappingB.originalColumn; - if (cmp || onlyCompareOriginal) { - return cmp; - } - - cmp = strcmp(mappingA.name, mappingB.name); - if (cmp) { - return cmp; - } - - cmp = mappingA.generatedLine - mappingB.generatedLine; - if (cmp) { - return cmp; - } - - return mappingA.generatedColumn - mappingB.generatedColumn; - }; - exports.compareByOriginalPositions = compareByOriginalPositions; - - /** - * Comparator between two mappings where the generated positions are - * compared. - * - * Optionally pass in `true` as `onlyCompareGenerated` to consider two - * mappings with the same generated line and column, but different - * source/name/original line and column the same. Useful when searching for a - * mapping with a stubbed out mapping. - */ - function compareByGeneratedPositions(mappingA, mappingB, onlyCompareGenerated) { - var cmp; - - cmp = mappingA.generatedLine - mappingB.generatedLine; - if (cmp) { - return cmp; - } - - cmp = mappingA.generatedColumn - mappingB.generatedColumn; - if (cmp || onlyCompareGenerated) { - return cmp; - } - - cmp = strcmp(mappingA.source, mappingB.source); - if (cmp) { - return cmp; - } - - cmp = mappingA.originalLine - mappingB.originalLine; - if (cmp) { - return cmp; - } - - cmp = mappingA.originalColumn - mappingB.originalColumn; - if (cmp) { - return cmp; - } - - return strcmp(mappingA.name, mappingB.name); - }; - exports.compareByGeneratedPositions = compareByGeneratedPositions; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/array-set', ['require', 'exports', 'module' , 'source-map/util'], function(require, exports, module) { - - var util = require('./util'); - - /** - * A data structure which is a combination of an array and a set. Adding a new - * member is O(1), testing for membership is O(1), and finding the index of an - * element is O(1). Removing elements from the set is not supported. Only - * strings are supported for membership. - */ - function ArraySet() { - this._array = []; - this._set = {}; - } - - /** - * Static method for creating ArraySet instances from an existing array. - */ - ArraySet.fromArray = function ArraySet_fromArray(aArray, aAllowDuplicates) { - var set = new ArraySet(); - for (var i = 0, len = aArray.length; i < len; i++) { - set.add(aArray[i], aAllowDuplicates); - } - return set; - }; - - /** - * Add the given string to this set. - * - * @param String aStr - */ - ArraySet.prototype.add = function ArraySet_add(aStr, aAllowDuplicates) { - var isDuplicate = this.has(aStr); - var idx = this._array.length; - if (!isDuplicate || aAllowDuplicates) { - this._array.push(aStr); - } - if (!isDuplicate) { - this._set[util.toSetString(aStr)] = idx; - } - }; - - /** - * Is the given string a member of this set? - * - * @param String aStr - */ - ArraySet.prototype.has = function ArraySet_has(aStr) { - return Object.prototype.hasOwnProperty.call(this._set, - util.toSetString(aStr)); - }; - - /** - * What is the index of the given string in the array? - * - * @param String aStr - */ - ArraySet.prototype.indexOf = function ArraySet_indexOf(aStr) { - if (this.has(aStr)) { - return this._set[util.toSetString(aStr)]; - } - throw new Error('"' + aStr + '" is not in the set.'); - }; - - /** - * What is the element at the given index? - * - * @param Number aIdx - */ - ArraySet.prototype.at = function ArraySet_at(aIdx) { - if (aIdx >= 0 && aIdx < this._array.length) { - return this._array[aIdx]; - } - throw new Error('No element indexed by ' + aIdx); - }; - - /** - * Returns the array representation of this set (which has the proper indices - * indicated by indexOf). Note that this is a copy of the internal array used - * for storing the members so that no one can mess with internal state. - */ - ArraySet.prototype.toArray = function ArraySet_toArray() { - return this._array.slice(); - }; - - exports.ArraySet = ArraySet; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/source-map-consumer', ['require', 'exports', 'module' , 'source-map/util', 'source-map/binary-search', 'source-map/array-set', 'source-map/base64-vlq'], function(require, exports, module) { - - var util = require('./util'); - var binarySearch = require('./binary-search'); - var ArraySet = require('./array-set').ArraySet; - var base64VLQ = require('./base64-vlq'); - - /** - * A SourceMapConsumer instance represents a parsed source map which we can - * query for information about the original file positions by giving it a file - * position in the generated source. - * - * The only parameter is the raw source map (either as a JSON string, or - * already parsed to an object). According to the spec, source maps have the - * following attributes: - * - * - version: Which version of the source map spec this map is following. - * - sources: An array of URLs to the original source files. - * - names: An array of identifiers which can be referrenced by individual mappings. - * - sourceRoot: Optional. The URL root from which all sources are relative. - * - sourcesContent: Optional. An array of contents of the original source files. - * - mappings: A string of base64 VLQs which contain the actual mappings. - * - file: The generated file this source map is associated with. - * - * Here is an example source map, taken from the source map spec[0]: - * - * { - * version : 3, - * file: "out.js", - * sourceRoot : "", - * sources: ["foo.js", "bar.js"], - * names: ["src", "maps", "are", "fun"], - * mappings: "AA,AB;;ABCDE;" - * } - * - * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit?pli=1# - */ - function SourceMapConsumer(aSourceMap) { - var sourceMap = aSourceMap; - if (typeof aSourceMap === 'string') { - sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, '')); - } - - var version = util.getArg(sourceMap, 'version'); - var sources = util.getArg(sourceMap, 'sources'); - // Sass 3.3 leaves out the 'names' array, so we deviate from the spec (which - // requires the array) to play nice here. - var names = util.getArg(sourceMap, 'names', []); - var sourceRoot = util.getArg(sourceMap, 'sourceRoot', null); - var sourcesContent = util.getArg(sourceMap, 'sourcesContent', null); - var mappings = util.getArg(sourceMap, 'mappings'); - var file = util.getArg(sourceMap, 'file', null); - - // Once again, Sass deviates from the spec and supplies the version as a - // string rather than a number, so we use loose equality checking here. - if (version != this._version) { - throw new Error('Unsupported version: ' + version); - } - - // Pass `true` below to allow duplicate names and sources. While source maps - // are intended to be compressed and deduplicated, the TypeScript compiler - // sometimes generates source maps with duplicates in them. See Github issue - // #72 and bugzil.la/889492. - this._names = ArraySet.fromArray(names, true); - this._sources = ArraySet.fromArray(sources, true); - - this.sourceRoot = sourceRoot; - this.sourcesContent = sourcesContent; - this._mappings = mappings; - this.file = file; - } - - /** - * Create a SourceMapConsumer from a SourceMapGenerator. - * - * @param SourceMapGenerator aSourceMap - * The source map that will be consumed. - * @returns SourceMapConsumer - */ - SourceMapConsumer.fromSourceMap = - function SourceMapConsumer_fromSourceMap(aSourceMap) { - var smc = Object.create(SourceMapConsumer.prototype); - - smc._names = ArraySet.fromArray(aSourceMap._names.toArray(), true); - smc._sources = ArraySet.fromArray(aSourceMap._sources.toArray(), true); - smc.sourceRoot = aSourceMap._sourceRoot; - smc.sourcesContent = aSourceMap._generateSourcesContent(smc._sources.toArray(), - smc.sourceRoot); - smc.file = aSourceMap._file; - - smc.__generatedMappings = aSourceMap._mappings.slice() - .sort(util.compareByGeneratedPositions); - smc.__originalMappings = aSourceMap._mappings.slice() - .sort(util.compareByOriginalPositions); - - return smc; - }; - - /** - * The version of the source mapping spec that we are consuming. - */ - SourceMapConsumer.prototype._version = 3; - - /** - * The list of original sources. - */ - Object.defineProperty(SourceMapConsumer.prototype, 'sources', { - get: function () { - return this._sources.toArray().map(function (s) { - return this.sourceRoot ? util.join(this.sourceRoot, s) : s; - }, this); - } - }); - - // `__generatedMappings` and `__originalMappings` are arrays that hold the - // parsed mapping coordinates from the source map's "mappings" attribute. They - // are lazily instantiated, accessed via the `_generatedMappings` and - // `_originalMappings` getters respectively, and we only parse the mappings - // and create these arrays once queried for a source location. We jump through - // these hoops because there can be many thousands of mappings, and parsing - // them is expensive, so we only want to do it if we must. - // - // Each object in the arrays is of the form: - // - // { - // generatedLine: The line number in the generated code, - // generatedColumn: The column number in the generated code, - // source: The path to the original source file that generated this - // chunk of code, - // originalLine: The line number in the original source that - // corresponds to this chunk of generated code, - // originalColumn: The column number in the original source that - // corresponds to this chunk of generated code, - // name: The name of the original symbol which generated this chunk of - // code. - // } - // - // All properties except for `generatedLine` and `generatedColumn` can be - // `null`. - // - // `_generatedMappings` is ordered by the generated positions. - // - // `_originalMappings` is ordered by the original positions. - - SourceMapConsumer.prototype.__generatedMappings = null; - Object.defineProperty(SourceMapConsumer.prototype, '_generatedMappings', { - get: function () { - if (!this.__generatedMappings) { - this.__generatedMappings = []; - this.__originalMappings = []; - this._parseMappings(this._mappings, this.sourceRoot); - } - - return this.__generatedMappings; - } - }); - - SourceMapConsumer.prototype.__originalMappings = null; - Object.defineProperty(SourceMapConsumer.prototype, '_originalMappings', { - get: function () { - if (!this.__originalMappings) { - this.__generatedMappings = []; - this.__originalMappings = []; - this._parseMappings(this._mappings, this.sourceRoot); - } - - return this.__originalMappings; - } - }); - - /** - * Parse the mappings in a string in to a data structure which we can easily - * query (the ordered arrays in the `this.__generatedMappings` and - * `this.__originalMappings` properties). - */ - SourceMapConsumer.prototype._parseMappings = - function SourceMapConsumer_parseMappings(aStr, aSourceRoot) { - var generatedLine = 1; - var previousGeneratedColumn = 0; - var previousOriginalLine = 0; - var previousOriginalColumn = 0; - var previousSource = 0; - var previousName = 0; - var mappingSeparator = /^[,;]/; - var str = aStr; - var mapping; - var temp; - - while (str.length > 0) { - if (str.charAt(0) === ';') { - generatedLine++; - str = str.slice(1); - previousGeneratedColumn = 0; - } - else if (str.charAt(0) === ',') { - str = str.slice(1); - } - else { - mapping = {}; - mapping.generatedLine = generatedLine; - - // Generated column. - temp = base64VLQ.decode(str); - mapping.generatedColumn = previousGeneratedColumn + temp.value; - previousGeneratedColumn = mapping.generatedColumn; - str = temp.rest; - - if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) { - // Original source. - temp = base64VLQ.decode(str); - mapping.source = this._sources.at(previousSource + temp.value); - previousSource += temp.value; - str = temp.rest; - if (str.length === 0 || mappingSeparator.test(str.charAt(0))) { - throw new Error('Found a source, but no line and column'); - } - - // Original line. - temp = base64VLQ.decode(str); - mapping.originalLine = previousOriginalLine + temp.value; - previousOriginalLine = mapping.originalLine; - // Lines are stored 0-based - mapping.originalLine += 1; - str = temp.rest; - if (str.length === 0 || mappingSeparator.test(str.charAt(0))) { - throw new Error('Found a source and line, but no column'); - } - - // Original column. - temp = base64VLQ.decode(str); - mapping.originalColumn = previousOriginalColumn + temp.value; - previousOriginalColumn = mapping.originalColumn; - str = temp.rest; - - if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) { - // Original name. - temp = base64VLQ.decode(str); - mapping.name = this._names.at(previousName + temp.value); - previousName += temp.value; - str = temp.rest; - } - } - - this.__generatedMappings.push(mapping); - if (typeof mapping.originalLine === 'number') { - this.__originalMappings.push(mapping); - } - } - } - - this.__originalMappings.sort(util.compareByOriginalPositions); - }; - - /** - * Find the mapping that best matches the hypothetical "needle" mapping that - * we are searching for in the given "haystack" of mappings. - */ - SourceMapConsumer.prototype._findMapping = - function SourceMapConsumer_findMapping(aNeedle, aMappings, aLineName, - aColumnName, aComparator) { - // To return the position we are searching for, we must first find the - // mapping for the given position and then return the opposite position it - // points to. Because the mappings are sorted, we can use binary search to - // find the best mapping. - - if (aNeedle[aLineName] <= 0) { - throw new TypeError('Line must be greater than or equal to 1, got ' - + aNeedle[aLineName]); - } - if (aNeedle[aColumnName] < 0) { - throw new TypeError('Column must be greater than or equal to 0, got ' - + aNeedle[aColumnName]); - } - - return binarySearch.search(aNeedle, aMappings, aComparator); - }; - - /** - * Returns the original source, line, and column information for the generated - * source's line and column positions provided. The only argument is an object - * with the following properties: - * - * - line: The line number in the generated source. - * - column: The column number in the generated source. - * - * and an object is returned with the following properties: - * - * - source: The original source file, or null. - * - line: The line number in the original source, or null. - * - column: The column number in the original source, or null. - * - name: The original identifier, or null. - */ - SourceMapConsumer.prototype.originalPositionFor = - function SourceMapConsumer_originalPositionFor(aArgs) { - var needle = { - generatedLine: util.getArg(aArgs, 'line'), - generatedColumn: util.getArg(aArgs, 'column') - }; - - var mapping = this._findMapping(needle, - this._generatedMappings, - "generatedLine", - "generatedColumn", - util.compareByGeneratedPositions); - - if (mapping) { - var source = util.getArg(mapping, 'source', null); - if (source && this.sourceRoot) { - source = util.join(this.sourceRoot, source); - } - return { - source: source, - line: util.getArg(mapping, 'originalLine', null), - column: util.getArg(mapping, 'originalColumn', null), - name: util.getArg(mapping, 'name', null) - }; - } - - return { - source: null, - line: null, - column: null, - name: null - }; - }; - - /** - * Returns the original source content. The only argument is the url of the - * original source file. Returns null if no original source content is - * availible. - */ - SourceMapConsumer.prototype.sourceContentFor = - function SourceMapConsumer_sourceContentFor(aSource) { - if (!this.sourcesContent) { - return null; - } - - if (this.sourceRoot) { - aSource = util.relative(this.sourceRoot, aSource); - } - - if (this._sources.has(aSource)) { - return this.sourcesContent[this._sources.indexOf(aSource)]; - } - - var url; - if (this.sourceRoot - && (url = util.urlParse(this.sourceRoot))) { - // XXX: file:// URIs and absolute paths lead to unexpected behavior for - // many users. We can help them out when they expect file:// URIs to - // behave like it would if they were running a local HTTP server. See - // https://bugzilla.mozilla.org/show_bug.cgi?id=885597. - var fileUriAbsPath = aSource.replace(/^file:\/\//, ""); - if (url.scheme == "file" - && this._sources.has(fileUriAbsPath)) { - return this.sourcesContent[this._sources.indexOf(fileUriAbsPath)] - } - - if ((!url.path || url.path == "/") - && this._sources.has("/" + aSource)) { - return this.sourcesContent[this._sources.indexOf("/" + aSource)]; - } - } - - throw new Error('"' + aSource + '" is not in the SourceMap.'); - }; - - /** - * Returns the generated line and column information for the original source, - * line, and column positions provided. The only argument is an object with - * the following properties: - * - * - source: The filename of the original source. - * - line: The line number in the original source. - * - column: The column number in the original source. - * - * and an object is returned with the following properties: - * - * - line: The line number in the generated source, or null. - * - column: The column number in the generated source, or null. - */ - SourceMapConsumer.prototype.generatedPositionFor = - function SourceMapConsumer_generatedPositionFor(aArgs) { - var needle = { - source: util.getArg(aArgs, 'source'), - originalLine: util.getArg(aArgs, 'line'), - originalColumn: util.getArg(aArgs, 'column') - }; - - if (this.sourceRoot) { - needle.source = util.relative(this.sourceRoot, needle.source); - } - - var mapping = this._findMapping(needle, - this._originalMappings, - "originalLine", - "originalColumn", - util.compareByOriginalPositions); - - if (mapping) { - return { - line: util.getArg(mapping, 'generatedLine', null), - column: util.getArg(mapping, 'generatedColumn', null) - }; - } - - return { - line: null, - column: null - }; - }; - - SourceMapConsumer.GENERATED_ORDER = 1; - SourceMapConsumer.ORIGINAL_ORDER = 2; - - /** - * Iterate over each mapping between an original source/line/column and a - * generated line/column in this source map. - * - * @param Function aCallback - * The function that is called with each mapping. - * @param Object aContext - * Optional. If specified, this object will be the value of `this` every - * time that `aCallback` is called. - * @param aOrder - * Either `SourceMapConsumer.GENERATED_ORDER` or - * `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to - * iterate over the mappings sorted by the generated file's line/column - * order or the original's source/line/column order, respectively. Defaults to - * `SourceMapConsumer.GENERATED_ORDER`. - */ - SourceMapConsumer.prototype.eachMapping = - function SourceMapConsumer_eachMapping(aCallback, aContext, aOrder) { - var context = aContext || null; - var order = aOrder || SourceMapConsumer.GENERATED_ORDER; - - var mappings; - switch (order) { - case SourceMapConsumer.GENERATED_ORDER: - mappings = this._generatedMappings; - break; - case SourceMapConsumer.ORIGINAL_ORDER: - mappings = this._originalMappings; - break; - default: - throw new Error("Unknown order of iteration."); - } - - var sourceRoot = this.sourceRoot; - mappings.map(function (mapping) { - var source = mapping.source; - if (source && sourceRoot) { - source = util.join(sourceRoot, source); - } - return { - source: source, - generatedLine: mapping.generatedLine, - generatedColumn: mapping.generatedColumn, - originalLine: mapping.originalLine, - originalColumn: mapping.originalColumn, - name: mapping.name - }; - }).forEach(aCallback, context); - }; - - exports.SourceMapConsumer = SourceMapConsumer; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/binary-search', ['require', 'exports', 'module' , ], function(require, exports, module) { - - /** - * Recursive implementation of binary search. - * - * @param aLow Indices here and lower do not contain the needle. - * @param aHigh Indices here and higher do not contain the needle. - * @param aNeedle The element being searched for. - * @param aHaystack The non-empty array being searched. - * @param aCompare Function which takes two elements and returns -1, 0, or 1. - */ - function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare) { - // This function terminates when one of the following is true: - // - // 1. We find the exact element we are looking for. - // - // 2. We did not find the exact element, but we can return the next - // closest element that is less than that element. - // - // 3. We did not find the exact element, and there is no next-closest - // element which is less than the one we are searching for, so we - // return null. - var mid = Math.floor((aHigh - aLow) / 2) + aLow; - var cmp = aCompare(aNeedle, aHaystack[mid], true); - if (cmp === 0) { - // Found the element we are looking for. - return aHaystack[mid]; - } - else if (cmp > 0) { - // aHaystack[mid] is greater than our needle. - if (aHigh - mid > 1) { - // The element is in the upper half. - return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare); - } - // We did not find an exact match, return the next closest one - // (termination case 2). - return aHaystack[mid]; - } - else { - // aHaystack[mid] is less than our needle. - if (mid - aLow > 1) { - // The element is in the lower half. - return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare); - } - // The exact needle element was not found in this haystack. Determine if - // we are in termination case (2) or (3) and return the appropriate thing. - return aLow < 0 - ? null - : aHaystack[aLow]; - } - } - - /** - * This is an implementation of binary search which will always try and return - * the next lowest value checked if there is no exact hit. This is because - * mappings between original and generated line/col pairs are single points, - * and there is an implicit region between each of them, so a miss just means - * that you aren't on the very start of a region. - * - * @param aNeedle The element you are looking for. - * @param aHaystack The array that is being searched. - * @param aCompare A function which takes the needle and an element in the - * array and returns -1, 0, or 1 depending on whether the needle is less - * than, equal to, or greater than the element, respectively. - */ - exports.search = function search(aNeedle, aHaystack, aCompare) { - return aHaystack.length > 0 - ? recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack, aCompare) - : null; - }; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/source-node', ['require', 'exports', 'module' , 'source-map/source-map-generator', 'source-map/util'], function(require, exports, module) { - - var SourceMapGenerator = require('./source-map-generator').SourceMapGenerator; - var util = require('./util'); - - /** - * SourceNodes provide a way to abstract over interpolating/concatenating - * snippets of generated JavaScript source code while maintaining the line and - * column information associated with the original source code. - * - * @param aLine The original line number. - * @param aColumn The original column number. - * @param aSource The original source's filename. - * @param aChunks Optional. An array of strings which are snippets of - * generated JS, or other SourceNodes. - * @param aName The original identifier. - */ - function SourceNode(aLine, aColumn, aSource, aChunks, aName) { - this.children = []; - this.sourceContents = {}; - this.line = aLine === undefined ? null : aLine; - this.column = aColumn === undefined ? null : aColumn; - this.source = aSource === undefined ? null : aSource; - this.name = aName === undefined ? null : aName; - if (aChunks != null) this.add(aChunks); - } - - /** - * Creates a SourceNode from generated code and a SourceMapConsumer. - * - * @param aGeneratedCode The generated code - * @param aSourceMapConsumer The SourceMap for the generated code - */ - SourceNode.fromStringWithSourceMap = - function SourceNode_fromStringWithSourceMap(aGeneratedCode, aSourceMapConsumer) { - // The SourceNode we want to fill with the generated code - // and the SourceMap - var node = new SourceNode(); - - // The generated code - // Processed fragments are removed from this array. - var remainingLines = aGeneratedCode.split('\n'); - - // We need to remember the position of "remainingLines" - var lastGeneratedLine = 1, lastGeneratedColumn = 0; - - // The generate SourceNodes we need a code range. - // To extract it current and last mapping is used. - // Here we store the last mapping. - var lastMapping = null; - - aSourceMapConsumer.eachMapping(function (mapping) { - if (lastMapping === null) { - // We add the generated code until the first mapping - // to the SourceNode without any mapping. - // Each line is added as separate string. - while (lastGeneratedLine < mapping.generatedLine) { - node.add(remainingLines.shift() + "\n"); - lastGeneratedLine++; - } - if (lastGeneratedColumn < mapping.generatedColumn) { - var nextLine = remainingLines[0]; - node.add(nextLine.substr(0, mapping.generatedColumn)); - remainingLines[0] = nextLine.substr(mapping.generatedColumn); - lastGeneratedColumn = mapping.generatedColumn; - } - } else { - // We add the code from "lastMapping" to "mapping": - // First check if there is a new line in between. - if (lastGeneratedLine < mapping.generatedLine) { - var code = ""; - // Associate full lines with "lastMapping" - do { - code += remainingLines.shift() + "\n"; - lastGeneratedLine++; - lastGeneratedColumn = 0; - } while (lastGeneratedLine < mapping.generatedLine); - // When we reached the correct line, we add code until we - // reach the correct column too. - if (lastGeneratedColumn < mapping.generatedColumn) { - var nextLine = remainingLines[0]; - code += nextLine.substr(0, mapping.generatedColumn); - remainingLines[0] = nextLine.substr(mapping.generatedColumn); - lastGeneratedColumn = mapping.generatedColumn; - } - // Create the SourceNode. - addMappingWithCode(lastMapping, code); - } else { - // There is no new line in between. - // Associate the code between "lastGeneratedColumn" and - // "mapping.generatedColumn" with "lastMapping" - var nextLine = remainingLines[0]; - var code = nextLine.substr(0, mapping.generatedColumn - - lastGeneratedColumn); - remainingLines[0] = nextLine.substr(mapping.generatedColumn - - lastGeneratedColumn); - lastGeneratedColumn = mapping.generatedColumn; - addMappingWithCode(lastMapping, code); - } - } - lastMapping = mapping; - }, this); - // We have processed all mappings. - // Associate the remaining code in the current line with "lastMapping" - // and add the remaining lines without any mapping - addMappingWithCode(lastMapping, remainingLines.join("\n")); - - // Copy sourcesContent into SourceNode - aSourceMapConsumer.sources.forEach(function (sourceFile) { - var content = aSourceMapConsumer.sourceContentFor(sourceFile); - if (content) { - node.setSourceContent(sourceFile, content); - } - }); - - return node; - - function addMappingWithCode(mapping, code) { - if (mapping === null || mapping.source === undefined) { - node.add(code); - } else { - node.add(new SourceNode(mapping.originalLine, - mapping.originalColumn, - mapping.source, - code, - mapping.name)); - } - } - }; - - /** - * Add a chunk of generated JS to this source node. - * - * @param aChunk A string snippet of generated JS code, another instance of - * SourceNode, or an array where each member is one of those things. - */ - SourceNode.prototype.add = function SourceNode_add(aChunk) { - if (Array.isArray(aChunk)) { - aChunk.forEach(function (chunk) { - this.add(chunk); - }, this); - } - else if (aChunk instanceof SourceNode || typeof aChunk === "string") { - if (aChunk) { - this.children.push(aChunk); - } - } - else { - throw new TypeError( - "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk - ); - } - return this; - }; - - /** - * Add a chunk of generated JS to the beginning of this source node. - * - * @param aChunk A string snippet of generated JS code, another instance of - * SourceNode, or an array where each member is one of those things. - */ - SourceNode.prototype.prepend = function SourceNode_prepend(aChunk) { - if (Array.isArray(aChunk)) { - for (var i = aChunk.length-1; i >= 0; i--) { - this.prepend(aChunk[i]); - } - } - else if (aChunk instanceof SourceNode || typeof aChunk === "string") { - this.children.unshift(aChunk); - } - else { - throw new TypeError( - "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk - ); - } - return this; - }; - - /** - * Walk over the tree of JS snippets in this node and its children. The - * walking function is called once for each snippet of JS and is passed that - * snippet and the its original associated source's line/column location. - * - * @param aFn The traversal function. - */ - SourceNode.prototype.walk = function SourceNode_walk(aFn) { - var chunk; - for (var i = 0, len = this.children.length; i < len; i++) { - chunk = this.children[i]; - if (chunk instanceof SourceNode) { - chunk.walk(aFn); - } - else { - if (chunk !== '') { - aFn(chunk, { source: this.source, - line: this.line, - column: this.column, - name: this.name }); - } - } - } - }; - - /** - * Like `String.prototype.join` except for SourceNodes. Inserts `aStr` between - * each of `this.children`. - * - * @param aSep The separator. - */ - SourceNode.prototype.join = function SourceNode_join(aSep) { - var newChildren; - var i; - var len = this.children.length; - if (len > 0) { - newChildren = []; - for (i = 0; i < len-1; i++) { - newChildren.push(this.children[i]); - newChildren.push(aSep); - } - newChildren.push(this.children[i]); - this.children = newChildren; - } - return this; - }; - - /** - * Call String.prototype.replace on the very right-most source snippet. Useful - * for trimming whitespace from the end of a source node, etc. - * - * @param aPattern The pattern to replace. - * @param aReplacement The thing to replace the pattern with. - */ - SourceNode.prototype.replaceRight = function SourceNode_replaceRight(aPattern, aReplacement) { - var lastChild = this.children[this.children.length - 1]; - if (lastChild instanceof SourceNode) { - lastChild.replaceRight(aPattern, aReplacement); - } - else if (typeof lastChild === 'string') { - this.children[this.children.length - 1] = lastChild.replace(aPattern, aReplacement); - } - else { - this.children.push(''.replace(aPattern, aReplacement)); - } - return this; - }; - - /** - * Set the source content for a source file. This will be added to the SourceMapGenerator - * in the sourcesContent field. - * - * @param aSourceFile The filename of the source file - * @param aSourceContent The content of the source file - */ - SourceNode.prototype.setSourceContent = - function SourceNode_setSourceContent(aSourceFile, aSourceContent) { - this.sourceContents[util.toSetString(aSourceFile)] = aSourceContent; - }; - - /** - * Walk over the tree of SourceNodes. The walking function is called for each - * source file content and is passed the filename and source content. - * - * @param aFn The traversal function. - */ - SourceNode.prototype.walkSourceContents = - function SourceNode_walkSourceContents(aFn) { - for (var i = 0, len = this.children.length; i < len; i++) { - if (this.children[i] instanceof SourceNode) { - this.children[i].walkSourceContents(aFn); - } - } - - var sources = Object.keys(this.sourceContents); - for (var i = 0, len = sources.length; i < len; i++) { - aFn(util.fromSetString(sources[i]), this.sourceContents[sources[i]]); - } - }; - - /** - * Return the string representation of this source node. Walks over the tree - * and concatenates all the various snippets together to one string. - */ - SourceNode.prototype.toString = function SourceNode_toString() { - var str = ""; - this.walk(function (chunk) { - str += chunk; - }); - return str; - }; - - /** - * Returns the string representation of this source node along with a source - * map. - */ - SourceNode.prototype.toStringWithSourceMap = function SourceNode_toStringWithSourceMap(aArgs) { - var generated = { - code: "", - line: 1, - column: 0 - }; - var map = new SourceMapGenerator(aArgs); - var sourceMappingActive = false; - var lastOriginalSource = null; - var lastOriginalLine = null; - var lastOriginalColumn = null; - var lastOriginalName = null; - this.walk(function (chunk, original) { - generated.code += chunk; - if (original.source !== null - && original.line !== null - && original.column !== null) { - if(lastOriginalSource !== original.source - || lastOriginalLine !== original.line - || lastOriginalColumn !== original.column - || lastOriginalName !== original.name) { - map.addMapping({ - source: original.source, - original: { - line: original.line, - column: original.column - }, - generated: { - line: generated.line, - column: generated.column - }, - name: original.name - }); - } - lastOriginalSource = original.source; - lastOriginalLine = original.line; - lastOriginalColumn = original.column; - lastOriginalName = original.name; - sourceMappingActive = true; - } else if (sourceMappingActive) { - map.addMapping({ - generated: { - line: generated.line, - column: generated.column - } - }); - lastOriginalSource = null; - sourceMappingActive = false; - } - chunk.split('').forEach(function (ch) { - if (ch === '\n') { - generated.line++; - generated.column = 0; - } else { - generated.column++; - } - }); - }); - this.walkSourceContents(function (sourceFile, sourceContent) { - map.setSourceContent(sourceFile, sourceContent); - }); - - return { code: generated.code, map: map }; - }; - - exports.SourceNode = SourceNode; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/////////////////////////////////////////////////////////////////////////////// - -this.sourceMap = { - SourceMapConsumer: require('source-map/source-map-consumer').SourceMapConsumer, - SourceMapGenerator: require('source-map/source-map-generator').SourceMapGenerator, - SourceNode: require('source-map/source-node').SourceNode -}; - -// footer to wrap "source-map" module - return this.sourceMap; - }(); -})(); \ No newline at end of file diff --git a/awx/ui/static/lib/less/dist/less-rhino-1.6.3.js b/awx/ui/static/lib/less/dist/less-rhino-1.6.3.js deleted file mode 100644 index 69cf4a354b..0000000000 --- a/awx/ui/static/lib/less/dist/less-rhino-1.6.3.js +++ /dev/null @@ -1,9020 +0,0 @@ -/* LESS.js v1.6.3 RHINO | Copyright (c) 2009-2014, Alexis Sellier */ - -// -// Stub out `require` in rhino -// -function require(arg) { - var split = arg.split('/'); - var resultModule = split.length == 1 ? less.modules[split[0]] : less[split[1]]; - if (!resultModule) { - throw { message: "Cannot find module '" + arg + "'"}; - } - return resultModule; -} - - -if (typeof(window) === 'undefined') { less = {} } -else { less = window.less = {} } -tree = less.tree = {}; -less.mode = 'rhino'; - -(function() { - - console = function() { - var stdout = java.lang.System.out; - var stderr = java.lang.System.err; - - function doLog(out, type) { - return function() { - var args = java.lang.reflect.Array.newInstance(java.lang.Object, arguments.length - 1); - var format = arguments[0]; - var conversionIndex = 0; - // need to look for %d (integer) conversions because in Javascript all numbers are doubles - for (var i = 1; i < arguments.length; i++) { - var arg = arguments[i]; - if (conversionIndex != -1) { - conversionIndex = format.indexOf('%', conversionIndex); - } - if (conversionIndex >= 0 && conversionIndex < format.length) { - var conversion = format.charAt(conversionIndex + 1); - if (conversion === 'd' && typeof arg === 'number') { - arg = new java.lang.Integer(new java.lang.Double(arg).intValue()); - } - conversionIndex++; - } - args[i-1] = arg; - } - try { - out.println(type + java.lang.String.format(format, args)); - } catch(ex) { - stderr.println(ex); - } - } - } - return { - log: doLog(stdout, ''), - info: doLog(stdout, 'INFO: '), - error: doLog(stderr, 'ERROR: '), - warn: doLog(stderr, 'WARN: ') - }; - }(); - - less.modules = {}; - - less.modules.path = { - join: function() { - var parts = []; - for (i in arguments) { - parts = parts.concat(arguments[i].split(/\/|\\/)); - } - var result = []; - for (i in parts) { - var part = parts[i]; - if (part === '..' && result.length > 0) { - result.pop(); - } else if (part === '' && result.length > 0) { - // skip - } else if (part !== '.') { - if (part.slice(-1)==='\\' || part.slice(-1)==='/') { - part = part.slice(0, -1); - } - result.push(part); - } - } - return result.join('/'); - }, - dirname: function(p) { - var path = p.split('/'); - path.pop(); - return path.join('/'); - }, - basename: function(p, ext) { - var base = p.split('/').pop(); - if (ext) { - var index = base.lastIndexOf(ext); - if (base.length === index + ext.length) { - base = base.substr(0, index); - } - } - return base; - }, - extname: function(p) { - var index = p.lastIndexOf('.'); - return index > 0 ? p.substring(index) : ''; - } - }; - - less.modules.fs = { - readFileSync: function(name) { - // read a file into a byte array - var file = new java.io.File(name); - var stream = new java.io.FileInputStream(file); - var buffer = []; - var c; - while ((c = stream.read()) != -1) { - buffer.push(c); - } - stream.close(); - return { - length: buffer.length, - toString: function(enc) { - if (enc === 'base64') { - return encodeBase64Bytes(buffer); - } else if (enc) { - return java.lang.String["(byte[],java.lang.String)"](buffer, enc); - } else { - return java.lang.String["(byte[])"](buffer); - } - } - }; - } - }; - - less.encoder = { - encodeBase64: function(str) { - return encodeBase64String(str); - } - }; - - // --------------------------------------------------------------------------------------------- - // private helper functions - // --------------------------------------------------------------------------------------------- - - function encodeBase64Bytes(bytes) { - // requires at least a JRE Platform 6 (or JAXB 1.0 on the classpath) - return javax.xml.bind.DatatypeConverter.printBase64Binary(bytes) - } - function encodeBase64String(str) { - return encodeBase64Bytes(new java.lang.String(str).getBytes()); - } - -})(); - -var less, tree; - -// Node.js does not have a header file added which defines less -if (less === undefined) { - less = exports; - tree = require('./tree'); - less.mode = 'node'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `currentPos` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - temp, // temporarily holds a chunk's state, for backtracking - memo, // temporarily holds `i`, when backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // current chunk - currentPos, // index of current chunk, in `input` - parser, - parsers, - rootFilename = env && env.filename; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed around by reference. - if (!(env instanceof tree.parseEnv)) { - env = new tree.parseEnv(env); - } - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - contentsIgnoredChars: env.contentsIgnoredChars, // lines inserted, not in the original less - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, currentFileInfo, importOptions, callback) { - var parserImports = this; - this.queue.push(path); - - var fileParsedFunc = function (e, root, fullPath) { - parserImports.queue.splice(parserImports.queue.indexOf(path), 1); // Remove the path from the queue - - var importedPreviously = fullPath in parserImports.files || fullPath === rootFilename; - - parserImports.files[fullPath] = root; // Store the root - - if (e && !parserImports.error) { parserImports.error = e; } - - callback(e, root, importedPreviously, fullPath); - }; - - if (less.Parser.importer) { - less.Parser.importer(path, currentFileInfo, fileParsedFunc, env); - } else { - less.Parser.fileLoader(path, currentFileInfo, function(e, contents, fullPath, newFileInfo) { - if (e) {fileParsedFunc(e); return;} - - var newEnv = new tree.parseEnv(env); - - newEnv.currentFileInfo = newFileInfo; - newEnv.processImports = false; - newEnv.contents[fullPath] = contents; - - if (currentFileInfo.reference || importOptions.reference) { - newFileInfo.reference = true; - } - - if (importOptions.inline) { - fileParsedFunc(null, contents, fullPath); - } else { - new(less.Parser)(newEnv).parse(contents, function (e, root) { - fileParsedFunc(e, root, fullPath); - }); - } - }, env); - } - } - }; - - function save() { temp = current; memo = currentPos = i; } - function restore() { current = temp; currentPos = i = memo; } - - function sync() { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - } - function isWhitespace(str, pos) { - var code = str.charCodeAt(pos | 0); - return (code <= 32) && (code === 32 || code === 10 || code === 9); - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var tokType = typeof tok, - match, length; - - // Either match a single character in the input, - // or match a regexp in the current chunk (`current`). - // - if (tokType === "string") { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - // regexp - sync (); - if (! (match = tok.exec(current))) { - return null; - } - - length = match[0].length; - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - - // Specialization of $(tok) - function $re(tok) { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - var m = tok.exec(current); - if (!m) { - return null; - } - - skipWhitespace(m[0].length); - if(typeof m === "string") { - return m; - } - - return m.length === 1 ? m[0] : m; - } - - var _$re = $re; - - // Specialization of $(tok) - function $char(tok) { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - curr = i - currentPos, - endIndex = i + current.length - curr, - mem = (i += length), - inp = input, - c; - - for (; i < endIndex; i++) { - c = inp.charCodeAt(i); - if (c > 32) { - break; - } - - if ((c !== 32) && (c !== 10) && (c !== 9) && (c !== 13)) { - break; - } - } - - current = current.slice(length + i - mem + curr); - currentPos = i; - - if (!current.length && (j < chunks.length - 1)) { - current = chunks[++j]; - skipWhitespace(0); // skip space at the beginning of a chunk - return true; // things changed - } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - // some older browsers return typeof 'function' for RegExp - var result = (Object.prototype.toString.call(arg) === '[object Function]') ? arg.call(parsers) : $(arg); - if (result) { - return result; - } - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } - - // Specialization of expect() - function expectChar(arg, msg) { - if (input.charAt(i) === arg) { - skipWhitespace(1); - return arg; - } - error(msg || "expected '" + arg + "' got '" + input.charAt(i) + "'"); - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - return tok.test(current); - } - } - - // Specialization of peek() - function peekChar(tok) { - return input.charAt(i) === tok; - } - - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, inputStream) { - var n = index + 1, - line = null, - column = -1; - - while (--n >= 0 && inputStream.charAt(n) !== '\n') { - column++; - } - - if (typeof index === 'number') { - line = (inputStream.slice(0, index).match(/\n/g) || "").length; - } - - return { - line: line, - column: column - }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - callLine = e.call && getLocation(e.call, input).line, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = callLine + 1; - this.callExtract = lines[callLine]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // @param str A string containing 'less' markup - // @param callback call `callback` when done. - // @param [additionalData] An optional map which can contains vars - a map (key, value) of variables to apply - // - parse: function (str, callback, additionalData) { - var root, line, lines, error = null, globalVars, modifyVars, preText = ""; - - i = j = currentPos = furthest = 0; - - globalVars = (additionalData && additionalData.globalVars) ? less.Parser.serializeVars(additionalData.globalVars) + '\n' : ''; - modifyVars = (additionalData && additionalData.modifyVars) ? '\n' + less.Parser.serializeVars(additionalData.modifyVars) : ''; - - if (globalVars || (additionalData && additionalData.banner)) { - preText = ((additionalData && additionalData.banner) ? additionalData.banner : "") + globalVars; - parser.imports.contentsIgnoredChars[env.currentFileInfo.filename] = preText.length; - } - - str = str.replace(/\r\n/g, '\n'); - // Remove potential UTF Byte Order Mark - input = str = preText + str.replace(/^\uFEFF/, '') + modifyVars; - parser.imports.contents[env.currentFileInfo.filename] = str; - - // Split the input into chunks. - chunks = (function (input) { - var len = input.length, level = 0, parenLevel = 0, - lastOpening, lastOpeningParen, lastMultiComment, lastMultiCommentEndBrace, - chunks = [], emitFrom = 0, - parserCurrentIndex, currentChunkStartIndex, cc, cc2, matched; - - function fail(msg, index) { - error = new(LessError)({ - index: index || parserCurrentIndex, - type: 'Parse', - message: msg, - filename: env.currentFileInfo.filename - }, env); - } - - function emitChunk(force) { - var len = parserCurrentIndex - emitFrom; - if (((len < 512) && !force) || !len) { - return; - } - chunks.push(input.slice(emitFrom, parserCurrentIndex + 1)); - emitFrom = parserCurrentIndex + 1; - } - - for (parserCurrentIndex = 0; parserCurrentIndex < len; parserCurrentIndex++) { - cc = input.charCodeAt(parserCurrentIndex); - if (((cc >= 97) && (cc <= 122)) || (cc < 34)) { - // a-z or whitespace - continue; - } - - switch (cc) { - case 40: // ( - parenLevel++; - lastOpeningParen = parserCurrentIndex; - continue; - case 41: // ) - if (--parenLevel < 0) { - return fail("missing opening `(`"); - } - continue; - case 59: // ; - if (!parenLevel) { emitChunk(); } - continue; - case 123: // { - level++; - lastOpening = parserCurrentIndex; - continue; - case 125: // } - if (--level < 0) { - return fail("missing opening `{`"); - } - if (!level) { emitChunk(); } - continue; - case 92: // \ - if (parserCurrentIndex < len - 1) { parserCurrentIndex++; continue; } - return fail("unescaped `\\`"); - case 34: - case 39: - case 96: // ", ' and ` - matched = 0; - currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 1; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 > 96) { continue; } - if (cc2 == cc) { matched = 1; break; } - if (cc2 == 92) { // \ - if (parserCurrentIndex == len - 1) { - return fail("unescaped `\\`"); - } - parserCurrentIndex++; - } - } - if (matched) { continue; } - return fail("unmatched `" + String.fromCharCode(cc) + "`", currentChunkStartIndex); - case 47: // /, check for comment - if (parenLevel || (parserCurrentIndex == len - 1)) { continue; } - cc2 = input.charCodeAt(parserCurrentIndex + 1); - if (cc2 == 47) { - // //, find lnfeed - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if ((cc2 <= 13) && ((cc2 == 10) || (cc2 == 13))) { break; } - } - } else if (cc2 == 42) { - // /*, find */ - lastMultiComment = currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len - 1; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 == 125) { lastMultiCommentEndBrace = parserCurrentIndex; } - if (cc2 != 42) { continue; } - if (input.charCodeAt(parserCurrentIndex + 1) == 47) { break; } - } - if (parserCurrentIndex == len - 1) { - return fail("missing closing `*/`", currentChunkStartIndex); - } - parserCurrentIndex++; - } - continue; - case 42: // *, check for unmatched */ - if ((parserCurrentIndex < len - 1) && (input.charCodeAt(parserCurrentIndex + 1) == 47)) { - return fail("unmatched `/*`"); - } - continue; - } - } - - if (level !== 0) { - if ((lastMultiComment > lastOpening) && (lastMultiCommentEndBrace > lastMultiComment)) { - return fail("missing closing `}` or `*/`", lastOpening); - } else { - return fail("missing closing `}`", lastOpening); - } - } else if (parenLevel !== 0) { - return fail("missing closing `)`", lastOpeningParen); - } - - emitChunk(true); - return chunks; - })(str); - - if (error) { - return callback(new(LessError)(error, env)); - } - - current = chunks[0]; - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)(null, this.parsers.primary()); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - return function (options, variables) { - options = options || {}; - var evaldRoot, - css, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, null, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var preEvalVisitors = [], - visitors = [ - new(tree.joinSelectorVisitor)(), - new(tree.processExtendsVisitor)(), - new(tree.toCSSVisitor)({compress: Boolean(options.compress)}) - ], i, root = this; - - if (options.plugins) { - for(i =0; i < options.plugins.length; i++) { - if (options.plugins[i].isPreEvalVisitor) { - preEvalVisitors.push(options.plugins[i]); - } else { - if (options.plugins[i].isPreVisitor) { - visitors.splice(0, 0, options.plugins[i]); - } else { - visitors.push(options.plugins[i]); - } - } - } - } - - for(i = 0; i < preEvalVisitors.length; i++) { - preEvalVisitors[i].run(root); - } - - evaldRoot = evaluate.call(root, evalEnv); - - for(i = 0; i < visitors.length; i++) { - visitors[i].run(evaldRoot); - } - - if (options.sourceMap) { - evaldRoot = new tree.sourceMapOutput( - { - contentsIgnoredCharsMap: parser.imports.contentsIgnoredChars, - writeSourceMap: options.writeSourceMap, - rootNode: evaldRoot, - contentsMap: parser.imports.contents, - sourceMapFilename: options.sourceMapFilename, - sourceMapURL: options.sourceMapURL, - outputFilename: options.sourceMapOutputFilename, - sourceMapBasepath: options.sourceMapBasepath, - sourceMapRootpath: options.sourceMapRootpath, - outputSourceFiles: options.outputSourceFiles, - sourceMapGenerator: options.sourceMapGenerator - }); - } - - css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits), - numPrecision: 8}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.cleancss && less.mode === 'node') { - var CleanCSS = require('clean-css'), - cleancssOptions = options.cleancssOptions || {}; - - if (cleancssOptions.keepSpecialComments === undefined) { - cleancssOptions.keepSpecialComments = "*"; - } - cleancssOptions.processImport = false; - cleancssOptions.noRebase = true; - if (cleancssOptions.noAdvanced === undefined) { - cleancssOptions.noAdvanced = true; - } - - return new CleanCSS(cleancssOptions).minify(css); - } else if (options.compress) { - return css.replace(/(^(\s)+)|((\s)+$)/g, ""); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - var loc = getLocation(i, input); - lines = input.split('\n'); - line = loc.line + 1; - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: loc.column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - return callback(e); - } - else { - return callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - return finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: parsers = { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var mixin = this.mixin, $re = _$re, root = [], node; - - while (current) - { - node = this.extendRule() || mixin.definition() || this.rule() || this.ruleset() || - mixin.call() || this.comment() || this.directive(); - if (node) { - root.push(node); - } else { - if (!($re(/^[\s\n]+/) || $re(/^;+/))) { - break; - } - } - } - - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') { return; } - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($re(/^\/\/.*/), true, i, env.currentFileInfo); - } - comment = $re(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/); - if (comment) { - return new(tree.Comment)(comment, false, i, env.currentFileInfo); - } - }, - - comments: function () { - var comment, comments = []; - - while(true) { - comment = this.comment(); - if (!comment) { - break; - } - comments.push(comment); - } - - return comments; - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; } - - if (e) { $char('~'); } - - str = $re(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/); - if (str) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - k = $re(/^[_A-Za-z-][_A-Za-z0-9-]*/); - if (k) { - var color = tree.Color.fromKeyword(k); - if (color) { - return color; - } - return new(tree.Keyword)(k); - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(current); - if (!name) { return; } - - name = name[1]; - nameLC = name.toLowerCase(); - if (nameLC === 'url') { - return null; - } - - i += name.length; - - if (nameLC === 'alpha') { - alpha_ret = parsers.alpha(); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $char('('); // Parse the '(' and consume whitespace. - - args = this.arguments(); - - if (! $char(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (true) { - arg = this.assignment() || parsers.expression(); - if (!arg) { - break; - } - args.push(arg); - if (! $char(',')) { - break; - } - } - return args; - }, - literal: function () { - return this.dimension() || - this.color() || - this.quoted() || - this.unicodeDescriptor(); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - key = $re(/^\w+(?=\s?=)/i); - if (!key) { - return; - } - if (!$char('=')) { - return; - } - value = parsers.entity(); - if (value) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$re(/^url\(/)) { - return; - } - - value = this.quoted() || this.variable() || - $re(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expectChar(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $re(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var curly, index = i; - - if (input.charAt(i) === '@' && (curly = $re(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $re(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) { - return; - } - - value = $re(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/); - if (value) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - ud = $re(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/); - if (ud) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '`') { return; } - if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) { - error("You are using JavaScript, which has been disabled."); - } - - if (e) { $char('~'); } - - str = $re(/^`([^`]*)`/); - if (str) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*:/))) { return name[1]; } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList, extend; - - if (!(isRule ? $re(/^&:extend\(/) : $re(/^:extend\(/))) { return; } - - do { - option = null; - elements = null; - while (! (option = $re(/^(all)(?=\s*(\)|,))/))) { - e = this.element(); - if (!e) { break; } - if (elements) { elements.push(e); } else { elements = [ e ]; } - } - - option = option && option[1]; - - extend = new(tree.Extend)(new(tree.Selector)(elements), option, index); - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - - } while($char(",")); - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var s = input.charAt(i), important = false, index = i, elemIndex, - elements, elem, e, c, args; - - if (s !== '.' && s !== '#') { return; } - - save(); // stop us absorbing part of an invalid selector - - while (true) { - elemIndex = i; - e = $re(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/); - if (!e) { - break; - } - elem = new(tree.Element)(c, e, elemIndex, env.currentFileInfo); - if (elements) { elements.push(elem); } else { elements = [ elem ]; } - c = $char('>'); - } - - if (elements) { - if ($char('(')) { - args = this.args(true).args; - expectChar(')'); - } - - if (parsers.important()) { - important = true; - } - - if (parsers.end()) { - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - } - - restore(); - }, - args: function (isCall) { - var parsers = parser.parsers, entities = parsers.entities, - returner = { args:null, variadic: false }, - expressions = [], argsSemiColon = [], argsComma = [], - isSemiColonSeperated, expressionContainsNamed, name, nameLoop, value, arg; - - while (true) { - if (isCall) { - arg = parsers.expression(); - } else { - parsers.comments(); - if (input.charAt(i) === '.' && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = entities.variable() || entities.literal() || entities.keyword(); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value.length == 1) { - val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($char(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - value = expect(parsers.expression); - nameLoop = (name = val.name); - } else if (!isCall && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($char(',')) { - continue; - } - - if ($char(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) { - return; - } - - save(); - - match = $re(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/); - if (match) { - name = match[1]; - - var argInfo = this.args(false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. so we have to be nice and restore - if (!$char(')')) { - furthest = i; - restore(); - } - - parsers.comments(); - - if ($re(/^when/)) { // Guard - cond = expect(parsers.conditions, 'expected condition'); - } - - ruleset = parsers.block(); - - if (ruleset) { - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - var entities = this.entities; - - return entities.literal() || entities.variable() || entities.url() || - entities.call() || entities.keyword() || entities.javascript() || - this.comment(); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $char(';') || peekChar('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $re(/^\(opacity=/i)) { return; } - value = $re(/^\d+/) || this.entities.variable(); - if (value) { - expectChar(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, c, v, index = i; - - c = this.combinator(); - - e = $re(/^(?:\d+\.\d+|\d+)%/) || $re(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $char('*') || $char('&') || this.attribute() || $re(/^\([^()@]+\)/) || $re(/^[\.#](?=@)/) || - this.entities.variableCurly(); - - if (! e) { - if ($char('(')) { - if ((v = this.selector()) && $char(')')) { - e = new(tree.Paren)(v); - } - } - } - - if (e) { return new(tree.Element)(c, e, index, env.currentFileInfo); } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|' || c === '^') { - i++; - if (input.charAt(i) === '^') { - c = '^^'; - i++; - } - while (isWhitespace(input, i)) { i++; } - return new(tree.Combinator)(c); - } else if (isWhitespace(input, i - 1)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - // - // A CSS selector (see selector below) - // with less extensions e.g. the ability to extend and guard - // - lessSelector: function () { - return this.selector(true); - }, - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function (isLess) { - var index = i, $re = _$re, elements, extendList, c, e, extend, when, condition; - - while ((isLess && (extend = this.extend())) || (isLess && (when = $re(/^when/))) || (e = this.element())) { - if (when) { - condition = expect(this.conditions, 'expected condition'); - } else if (condition) { - error("CSS guard can only be used at the end of selector"); - } else if (extend) { - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - } else { - if (extendList) { error("Extend can only be used at the end of selector"); } - c = input.charAt(i); - if (elements) { elements.push(e); } else { elements = [ e ]; } - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { - break; - } - } - - if (elements) { return new(tree.Selector)(elements, extendList, condition, index, env.currentFileInfo); } - if (extendList) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - if (! $char('[')) { return; } - - var entities = this.entities, - key, val, op; - - if (!(key = entities.variableCurly())) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - op = $re(/^[|~*$^]?=/); - if (op) { - val = entities.quoted() || $re(/^[0-9]+%/) || $re(/^[\w-]+/) || entities.variableCurly(); - } - - expectChar(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($char('{') && (content = this.primary()) && $char('}')) { - return content; - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors, s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - while (true) { - s = this.lessSelector(); - if (!s) { - break; - } - if (selectors) { selectors.push(s); } else { selectors = [ s ]; } - this.comments(); - if (s.condition && selectors.length > 1) { - error("Guards are only currently allowed on a single selector."); - } - if (! $char(',')) { break; } - if (s.condition) { - error("Guards are only currently allowed on a single selector."); - } - this.comments(); - } - - if (selectors && (rules = this.block())) { - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) { - ruleset.debugInfo = debugInfo; - } - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, c = input.charAt(i), important, merge = false; - save(); - - if (c === '.' || c === '#' || c === '&') { return; } - - name = this.variable() || this.ruleProperty(); - if (name) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || (name.charAt && (name.charAt(0) === '@'))) ? - (this.value() || this.anonymousValue()) : - (this.anonymousValue() || this.value()); - - important = this.important(); - - // a name returned by this.ruleProperty() is always an array of the form: - // [string-1, ..., string-n, ""] or [string-1, ..., string-n, "+"] - // where each item is a tree.Keyword or tree.Variable - merge = name.pop && (name.pop().value === "+"); - - if (value && this.end()) { - return new (tree.Rule)(name, value, important, merge, memo, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } - }, - anonymousValue: function () { - var match; - match = /^([^@+\/'"*`(;{}-]*);/.exec(current); - if (match) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $re(/^@import?\s+/); - - var options = (dir ? this.importOptions() : null) || {}; - - if (dir && (path = this.entities.quoted() || this.entities.url())) { - features = this.mediaFeatures(); - if ($char(';')) { - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $char('(')) { return null; } - do { - o = this.importOption(); - if (o) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $char(',')) { break; } - } - } while (o); - expectChar(')'); - return options; - }, - - importOption: function() { - var opt = $re(/^(less|css|multiple|once|inline|reference)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var entities = this.entities, nodes = [], e, p; - do { - e = entities.keyword() || entities.variable(); - if (e) { - nodes.push(e); - } else if ($char('(')) { - p = this.property(); - e = this.value(); - if ($char(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null; } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var entities = this.entities, features = [], e; - do { - e = this.mediaFeature(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } else { - e = entities.variable(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - if ($re(/^@media/)) { - features = this.mediaFeatures(); - - rules = this.block(); - if (rules) { - media = new(tree.Media)(rules, features, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - media.debugInfo = debugInfo; - } - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var index = i, name, value, rules, nonVendorSpecificName, - hasBlock, hasIdentifier, hasExpression, identifier; - - if (input.charAt(i) !== '@') { return; } - - value = this['import']() || this.media(); - if (value) { - return value; - } - - save(); - - name = $re(/^@[a-z-]+/); - - if (!name) { return; } - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - case "@font-face": - hasBlock = true; - break; - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - case "@host": - case "@page": - case "@document": - case "@supports": - case "@keyframes": - hasBlock = true; - hasIdentifier = true; - break; - case "@namespace": - hasExpression = true; - break; - } - - if (hasIdentifier) { - identifier = ($re(/^[^{]+/) || '').trim(); - if (identifier) { - name += " " + identifier; - } - } - - if (hasBlock) { - rules = this.block(); - if (rules) { - return new(tree.Directive)(name, rules, index, env.currentFileInfo); - } - } else { - value = hasExpression ? this.expression() : this.entity(); - if (value && $char(';')) { - var directive = new(tree.Directive)(name, value, index, env.currentFileInfo); - if (env.dumpLineNumbers) { - directive.debugInfo = getDebugInfo(i, input, env); - } - return directive; - } - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = []; - - do { - e = this.expression(); - if (e) { - expressions.push(e); - if (! $char(',')) { break; } - } - } while(e); - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $re(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($char('(')) { - a = this.addition(); - if (a) { - e = new(tree.Expression)([a]); - expectChar(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced; - m = this.operand(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - if (peek(/^\/[*\/]/)) { - break; - } - op = $char('/') || $char('*'); - - if (!op) { break; } - - a = this.operand(); - - if (!a) { break; } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - m = this.multiplication(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - op = $re(/^[-+]\s+/) || (!isSpaced && ($char('+') || $char('-'))); - if (!op) { - break; - } - a = this.multiplication(); - if (!a) { - break; - } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - a = this.condition(); - if (a) { - while (true) { - if (!peek(/^,\s*(not\s*)?\(/) || !$char(',')) { - break; - } - b = this.condition(); - if (!b) { - break; - } - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var entities = this.entities, index = i, negate = false, - a, b, c, op; - - if ($re(/^not/)) { negate = true; } - expectChar('('); - a = this.addition() || entities.keyword() || entities.quoted(); - if (a) { - op = $re(/^(?:>=|<=|=<|[<=>])/); - if (op) { - b = this.addition() || entities.keyword() || entities.quoted(); - if (b) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expectChar(')'); - return $re(/^and/) ? new(tree.Condition)('and', c, this.condition()) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var entities = this.entities, - p = input.charAt(i + 1), negate; - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $char('-'); } - var o = this.sub() || entities.dimension() || - entities.color() || entities.variable() || - entities.call(); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var entities = [], e, delim; - - do { - e = this.addition() || this.entity(); - if (e) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/)) { - delim = $char('/'); - if (delim) { - entities.push(new(tree.Anonymous)(delim)); - } - } - } - } while (e); - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name = $re(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/); - if (name) { - return name[1]; - } - }, - ruleProperty: function () { - var c = current, name = [], index = [], length = 0, s, k; - - function match(re) { - var a = re.exec(c); - if (a) { - index.push(i + length); - length += a[0].length; - c = c.slice(a[1].length); - return name.push(a[1]); - } - } - - match(/^(\*?)/); - while (match(/^((?:[\w-]+)|(?:@\{[\w-]+\}))/)); // ! - if ((name.length > 1) && match(/^\s*(\+?)\s*:/)) { - // at last, we have the complete match now. move forward, - // convert name particles to tree objects and return: - skipWhitespace(length); - if (name[0] === '') { - name.shift(); - index.shift(); - } - for (k = 0; k < name.length; k++) { - s = name[k]; - name[k] = (s.charAt(0) !== '@') - ? new(tree.Keyword)(s) - : new(tree.Variable)('@' + s.slice(2, -1), - index[k], env.currentFileInfo); - } - return name; - } - } - } - }; - return parser; -}; -less.Parser.serializeVars = function(vars) { - var s = ''; - - for (var name in vars) { - if (Object.hasOwnProperty.call(vars, name)) { - var value = vars[name]; - s += ((name[0] === '@') ? '' : '@') + name +': '+ value + - ((('' + value).slice(-1) === ';') ? '' : ';'); - } - } - - return s; -}; - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 255); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; } - else if (h * 2 < 1) { return m2; } - else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; } - else { return m1; } - } - - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - // filter: saturate(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if (color.luma() < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - '%': function (quoted /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - str = quoted.value; - - for (var i = 0; i < args.length; i++) { - /*jshint loopfunc:true */ - str = str.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - str = str.replace(/%%/g, '%'); - return new(tree.Quoted)('"' + str + '"', str); - }, - unit: function (val, unit) { - if(!(val instanceof tree.Dimension)) { - throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") }; - } - return new(tree.Dimension)(val.value, unit ? unit.toCSS() : ""); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return _math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _minmax: function (isMin, args) { - args = Array.prototype.slice.call(args); - switch(args.length) { - case 0: throw { type: "Argument", message: "one or more arguments required" }; - case 1: return args[0]; - } - var i, j, current, currentUnified, referenceUnified, unit, - order = [], // elems only contains original argument values. - values = {}; // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - for (i = 0; i < args.length; i++) { - current = args[i]; - if (!(current instanceof tree.Dimension)) { - order.push(current); - continue; - } - currentUnified = current.unify(); - unit = currentUnified.unit.toString(); - j = values[unit]; - if (j === undefined) { - values[unit] = order.length; - order.push(current); - continue; - } - referenceUnified = order[j].unify(); - if ( isMin && currentUnified.value < referenceUnified.value || - !isMin && currentUnified.value > referenceUnified.value) { - order[j] = current; - } - } - if (order.length == 1) { - return order[0]; - } - args = order.map(function (a) { return a.toCSS(this.env); }) - .join(this.env.compress ? "," : ", "); - return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")"); - }, - min: function () { - return this._minmax(true, arguments); - }, - max: function () { - return this._minmax(false, arguments); - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - var colorCandidate = n.value, - returnColor; - returnColor = tree.Color.fromKeyword(colorCandidate); - if (returnColor) { - return returnColor; - } - if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) { - return new(tree.Color)(colorCandidate.slice(1)); - } - throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" }; - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - return Array.isArray(values.value) - ? values.value[index] : Array(values)[index]; - }, - length: function(values) { - var n = Array.isArray(values.value) ? values.value.length : 1; - return new tree.Dimension(n); - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require('fs'), - path = require('path'), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) { mimetype += ';base64'; } - } - else { - useBase64 = /;base64$/.test(mimetype); - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "\"data:" + mimetype + ',' + buf + "\""; - return new(tree.URL)(new(tree.Anonymous)(uri)); - }, - - "svg-gradient": function(direction) { - - function throwArgumentDescriptor() { - throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" }; - } - - if (arguments.length < 3) { - throwArgumentDescriptor(); - } - var stops = Array.prototype.slice.call(arguments, 1), - gradientDirectionSvg, - gradientType = "linear", - rectangleDimension = 'x="0" y="0" width="1" height="1"', - useBase64 = true, - renderEnv = {compress: false}, - returner, - directionValue = direction.toCSS(renderEnv), - i, color, position, positionValue, alpha; - - switch (directionValue) { - case "to bottom": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - gradientType = "radial"; - gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" }; - } - returner = '' + - '' + - '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>'; - - for (i = 0; i < stops.length; i+= 1) { - if (stops[i].value) { - color = stops[i].value[0]; - position = stops[i].value[1]; - } else { - color = stops[i]; - position = undefined; - } - - if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) { - throwArgumentDescriptor(); - } - positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%"; - alpha = color.alpha; - returner += ''; - } - returner += '' + - ''; - - if (useBase64) { - try { - returner = require('./encoder').encodeBase64(returner); // TODO browser implementation - } catch(e) { - useBase64 = false; - } - } - - returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'"; - return new(tree.URL)(new(tree.Anonymous)(returner)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -// Math - -var mathFunctions = { - // name, unit - ceil: null, - floor: null, - sqrt: null, - abs: null, - tan: "", - sin: "", - cos: "", - atan: "rad", - asin: "rad", - acos: "rad" -}; - -function _math(fn, unit, n) { - if (!(n instanceof tree.Dimension)) { - throw { type: "Argument", message: "argument must be a number" }; - } - if (unit == null) { - unit = n.unit; - } else { - n = n.unify(); - } - return new(tree.Dimension)(fn(parseFloat(n.value)), unit); -} - -// ~ End of Math - -// Color Blending -// ref: http://www.w3.org/TR/compositing-1 - -function colorBlend(mode, color1, color2) { - var ab = color1.alpha, cb, // backdrop - as = color2.alpha, cs, // source - ar, cr, r = []; // result - - ar = as + ab * (1 - as); - for (var i = 0; i < 3; i++) { - cb = color1.rgb[i] / 255; - cs = color2.rgb[i] / 255; - cr = mode(cb, cs); - if (ar) { - cr = (as * cs + ab * (cb - - as * (cb + cs - cr))) / ar; - } - r[i] = cr * 255; - } - - return new(tree.Color)(r, ar); -} - -var colorBlendMode = { - multiply: function(cb, cs) { - return cb * cs; - }, - screen: function(cb, cs) { - return cb + cs - cb * cs; - }, - overlay: function(cb, cs) { - cb *= 2; - return (cb <= 1) - ? colorBlendMode.multiply(cb, cs) - : colorBlendMode.screen(cb - 1, cs); - }, - softlight: function(cb, cs) { - var d = 1, e = cb; - if (cs > 0.5) { - e = 1; - d = (cb > 0.25) ? Math.sqrt(cb) - : ((16 * cb - 12) * cb + 4) * cb; - } - return cb - (1 - 2 * cs) * e * (d - cb); - }, - hardlight: function(cb, cs) { - return colorBlendMode.overlay(cs, cb); - }, - difference: function(cb, cs) { - return Math.abs(cb - cs); - }, - exclusion: function(cb, cs) { - return cb + cs - 2 * cb * cs; - }, - - // non-w3c functions: - average: function(cb, cs) { - return (cb + cs) / 2; - }, - negation: function(cb, cs) { - return 1 - Math.abs(cb + cs - 1); - } -}; - -// ~ End of Color Blending - -tree.defaultFunc = { - eval: function () { - var v = this.value_, e = this.error_; - if (e) { - throw e; - } - if (v != null) { - return v ? tree.True : tree.False; - } - }, - value: function (v) { - this.value_ = v; - }, - error: function (e) { - this.error_ = e; - }, - reset: function () { - this.value_ = this.error_ = null; - } -}; - -function initFunctions() { - var f, tf = tree.functions; - - // math - for (f in mathFunctions) { - if (mathFunctions.hasOwnProperty(f)) { - tf[f] = _math.bind(null, Math[f], mathFunctions[f]); - } - } - - // color blending - for (f in colorBlendMode) { - if (colorBlendMode.hasOwnProperty(f)) { - tf[f] = colorBlend.bind(null, colorBlendMode[f]); - } - } - - // default - f = tree.defaultFunc; - tf["default"] = f.eval.bind(f); - -} initFunctions(); - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.fround = function(env, value) { - var p; - if (env && (env.numPrecision != null)) { - p = Math.pow(10, env.numPrecision); - return Math.round(value * p) / p; - } else { - return value; - } -}; - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); - -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); - -(function (tree) { - -tree.debugInfo = function(env, ctx, lineSeperator) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:\/\\])/g, function (a) { - if (a == '\\') { - a = '\/'; - } - return '\\' + a; - }) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - r = fun.call(obj, obj[i]); - if (r) { return r; } - } - return null; -}; - -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false); }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -tree.toCSS = function (env) { - var strs = []; - this.genCSS(env, { - add: function(chunk, fileInfo, index) { - strs.push(chunk); - }, - isEmpty: function () { - return strs.length === 0; - } - }); - return strs.join(''); -}; - -tree.outputRuleset = function (env, output, rules) { - var ruleCnt = rules.length, i; - env.tabLevel = (env.tabLevel | 0) + 1; - - // Compressed - if (env.compress) { - output.add('{'); - for (i = 0; i < ruleCnt; i++) { - rules[i].genCSS(env, output); - } - output.add('}'); - env.tabLevel--; - return; - } - - // Non-compressed - var tabSetStr = '\n' + Array(env.tabLevel).join(" "), tabRuleStr = tabSetStr + " "; - if (!ruleCnt) { - output.add(" {" + tabSetStr + '}'); - } else { - output.add(" {" + tabRuleStr); - rules[0].genCSS(env, output); - for (i = 1; i < ruleCnt; i++) { - output.add(tabRuleStr); - rules[i].genCSS(env, output); - } - output.add(tabSetStr + '}'); - } - - env.tabLevel--; -}; - -})(require('./tree')); - -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } - return this; - }, - genCSS: function (env, output) { - output.add("alpha(opacity="); - - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - - output.add(")"); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Anonymous = function (string, index, currentFileInfo, mapLines) { - this.value = string.value || string; - this.index = index; - this.mapLines = mapLines; - this.currentFileInfo = currentFileInfo; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - eval: function () { - return new tree.Anonymous(this.value, this.index, this.currentFileInfo, this.mapLines); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - }, - genCSS: function (env, output) { - output.add(this.value, this.currentFileInfo, this.index, this.mapLines); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - }, - genCSS: function (env, output) { - output.add(this.key + '='); - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - if (this.args) { - this.args = visitor.visitArray(this.args); - } - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - return new tree.Call(this.name, args, this.index, this.currentFileInfo); - }, - - genCSS: function (env, output) { - output.add(this.name + "(", this.currentFileInfo, this.index); - - for(var i = 0; i < this.args.length; i++) { - this.args[i].genCSS(env, output); - if (i + 1 < this.args.length) { - output.add(", "); - } - } - - output.add(")"); - }, - - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; - -var transparentKeyword = "transparent"; - -tree.Color.prototype = { - type: "Color", - eval: function () { return this; }, - luma: function () { return (0.2126 * this.rgb[0] / 255) + (0.7152 * this.rgb[1] / 255) + (0.0722 * this.rgb[2] / 255); }, - - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress, - alpha = tree.fround(env, this.alpha); - - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - if (alpha < 1) { - if (alpha === 0 && this.isTransparentKeyword) { - return transparentKeyword; - } - return "rgba(" + this.rgb.map(function (c) { - return clamp(Math.round(c), 255); - }).concat(clamp(alpha, 1)) - .join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.toRGB(); - - if (compress) { - var splitcolor = color.split(''); - - // Convert color to short format - if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) { - color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5]; - } - } - - return color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var rgb = []; - var alpha = this.alpha * (1 - other.alpha) + other.alpha; - for (var c = 0; c < 3; c++) { - rgb[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(rgb, alpha); - }, - - toRGB: function () { - return toHex(this.rgb); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - return toHex([this.alpha * 255].concat(this.rgb)); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - -tree.Color.fromKeyword = function(keyword) { - keyword = keyword.toLowerCase(); - - if (tree.colors.hasOwnProperty(keyword)) { - // detect named color - return new(tree.Color)(tree.colors[keyword].slice(1)); - } - if (keyword === transparentKeyword) { - var transparent = new(tree.Color)([0, 0, 0], 0); - transparent.isTransparentKeyword = true; - return transparent; - } -}; - -function toHex(v) { - return '#' + v.map(function (c) { - c = clamp(Math.round(c), 255); - return (c < 16 ? '0' : '') + c.toString(16); - }).join(''); -} - -function clamp(v, max) { - return Math.min(Math.max(v, 0), max); -} - -})(require('../tree')); - -(function (tree) { - -tree.Comment = function (value, silent, index, currentFileInfo) { - this.value = value; - this.silent = !!silent; - this.currentFileInfo = currentFileInfo; -}; -tree.Comment.prototype = { - type: "Comment", - genCSS: function (env, output) { - if (this.debugInfo) { - output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index); - } - output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n - }, - toCSS: tree.toCSS, - isSilent: function(env) { - var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced), - isCompressed = env.compress && !this.value.match(/^\/\*!/); - return this.silent || isReference || isCompressed; - }, - eval: function () { return this; }, - markReferenced: function () { - this.isReferenced = true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<' || op === '<='; - case 0: return op === '=' || op === '>=' || op === '=<' || op === '<='; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); - -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - genCSS: function (env, output) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = tree.fround(env, this.value), - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && this.unit.isLength()) { - output.add(strValue); - return; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - output.add(strValue); - this.unit.genCSS(env, output); - }, - toCSS: tree.toCSS, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - /*jshint noempty:false */ - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a = this.unify(), b = other.unify(), - aValue = a.value, bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - if (!b.unit.isEmpty() && a.unit.compare(b.unit) !== 0) { - return -1; - } - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'm', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, targetUnit, derivedConversions = {}, applyUnit; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - applyUnit = function (atomicUnit, denominator) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(applyUnit); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - genCSS: function (env, output) { - if (this.numerator.length >= 1) { - output.add(this.numerator[0]); - } else - if (this.denominator.length >= 1) { - output.add(this.denominator[0]); - } else - if ((!env || !env.strictUnits) && this.backupUnit) { - output.add(this.backupUnit); - } - }, - toCSS: tree.toCSS, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isLength: function () { - return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/)); - }, - - isEmpty: function () { - return this.numerator.length === 0 && this.denominator.length === 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length === 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, result = {}, mapUnit; - - mapUnit = function (atomicUnit) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }; - - for (var groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(mapUnit); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Directive = function (name, value, index, currentFileInfo) { - this.name = name; - - if (Array.isArray(value)) { - this.rules = [new(tree.Ruleset)(null, value)]; - this.rules[0].allowImports = true; - } else { - this.value = value; - } - this.index = index; - this.currentFileInfo = currentFileInfo; - -}; -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - if (this.value) { - this.value = visitor.visit(this.value); - } - }, - genCSS: function (env, output) { - output.add(this.name, this.currentFileInfo, this.index); - if (this.rules) { - tree.outputRuleset(env, output, this.rules); - } else { - output.add(' '); - this.value.genCSS(env, output); - output.add(';'); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var evaldDirective = this; - if (this.rules) { - env.frames.unshift(this); - evaldDirective = new(tree.Directive)(this.name, null, this.index, this.currentFileInfo); - evaldDirective.rules = [this.rules[0].eval(env)]; - evaldDirective.rules[0].root = true; - env.frames.shift(); - } - return evaldDirective; - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - markReferenced: function () { - var i, rules; - this.isReferenced = true; - if (this.rules) { - rules = this.rules[0].rules; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Element = function (combinator, value, index, currentFileInfo) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - var value = this.value; - this.combinator = visitor.visit(this.combinator); - if (typeof value === "object") { - this.value = visitor.visit(value); - } - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index, - this.currentFileInfo); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env), this.currentFileInfo, this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value === '' && this.combinator.value.charAt(0) === '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - _outputMap: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : ' + ', - '~' : ' ~ ', - '>' : ' > ', - '|' : '|', - '^' : ' ^ ', - '^^' : ' ^^ ' - }, - _outputMapCompressed: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : '+', - '~' : '~', - '>' : '>', - '|' : '|', - '^' : '^', - '^^' : '^^' - }, - genCSS: function (env, output) { - output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - genCSS: function (env, output) { - for(var i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i + 1 < this.value.length) { - output.add(" "); - } - } - }, - toCSS: tree.toCSS, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - this.object_id = tree.Extend.next_id++; - this.parent_ids = [this.object_id]; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; -tree.Extend.next_id = 0; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i, - selectorElements; - - for(i = 0; i < selectors.length; i++) { - selectorElements = selectors[i].elements; - // duplicate the logic in genCSS function inside the selector node. - // future TODO - move both logics into the selector joiner visitor - if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") { - selectorElements[0].combinator.value = ' '; - } - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); - -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined || this.options.inline) { - this.css = !this.options.less || this.options.inline; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - this.path = visitor.visit(this.path); - if (!this.options.inline && this.root) { - this.root = visitor.visit(this.root); - } - }, - genCSS: function (env, output) { - if (this.css) { - output.add("@import ", this.currentFileInfo, this.index); - this.path.genCSS(env, output); - if (this.features) { - output.add(" "); - this.features.genCSS(env, output); - } - output.add(';'); - } - }, - toCSS: tree.toCSS, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - - if (!(path instanceof tree.URL)) { - if (rootpath) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath +pathValue; - } - } - path.value = env.normalizePath(path.value); - } - - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { return []; } - - if (this.options.inline) { - //todo needs to reference css file not import - var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true); - return this.features ? new(tree.Media)([contents], this.features.value) : [contents]; - } else if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" , - index: this.index }; - } - - var variables = env.frames[0].variables(); - for (var k in variables) { - if (variables.hasOwnProperty(k)) { - /*jshint loopfunc:true */ - context[k.slice(1)] = { - value: variables[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message.replace(/["]/g, "'") + "'" , - index: this.index }; - } - if (typeof(result) === 'number') { - return new(tree.Dimension)(result); - } else if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Keyword = function (value) { this.value = value; }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); - -(function (tree) { - -tree.Media = function (value, features, index, currentFileInfo) { - this.index = index; - this.currentFileInfo = currentFileInfo; - - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.rules = [new(tree.Ruleset)(selectors, value)]; - this.rules[0].allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - }, - genCSS: function (env, output) { - output.add('@media ', this.currentFileInfo, this.index); - this.features.genCSS(env, output); - tree.outputRuleset(env, output, this.rules); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)(null, [], this.index, this.currentFileInfo); - if(this.debugInfo) { - this.rules[0].debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.rules[0]); - media.rules = [this.rules[0].eval(env)]; - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env); - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', this.index, this.currentFileInfo), - sels = [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)]; - sels[0].mediaEmpty = true; - return sels; - }, - markReferenced: function () { - var i, rules = this.rules[0].rules; - this.isReferenced = true; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])]; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = (args && args.length) ? args : null; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - if (this.selector) { - this.selector = visitor.visit(this.selector); - } - if (this.arguments) { - this.arguments = visitor.visitArray(this.arguments); - } - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule, - candidates = [], candidate, conditionResult = [], defaultFunc = tree.defaultFunc, - defaultResult, defNone = 0, defTrue = 1, defFalse = 2, count; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - - // To make `default()` function independent of definition order we have two "subpasses" here. - // At first we evaluate each guard *twice* (with `default() == true` and `default() == false`), - // and build candidate list with corresponding flags. Then, when we know all possible matches, - // we make a final decision. - - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - - if (mixin.matchArgs(args, env)) { - candidate = {mixin: mixin, group: defNone}; - - if (mixin.matchCondition) { - for (f = 0; f < 2; f++) { - defaultFunc.value(f); - conditionResult[f] = mixin.matchCondition(args, env); - } - if (conditionResult[0] || conditionResult[1]) { - if (conditionResult[0] != conditionResult[1]) { - candidate.group = conditionResult[1] ? - defTrue : defFalse; - } - - candidates.push(candidate); - } - } - else { - candidates.push(candidate); - } - - match = true; - } - } - - defaultFunc.reset(); - - count = [0, 0, 0]; - for (m = 0; m < candidates.length; m++) { - count[candidates[m].group]++; - } - - if (count[defNone] > 0) { - defaultResult = defFalse; - } else { - defaultResult = defTrue; - if ((count[defTrue] + count[defFalse]) > 1) { - throw { type: 'Runtime', - message: 'Ambiguous use of `default()` found when matching for `' - + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - for (m = 0; m < candidates.length; m++) { - candidate = candidates[m].group; - if ((candidate === defNone) || (candidate === defaultResult)) { - try { - mixin = candidates[m].mixin; - if (!(mixin instanceof tree.mixin.Definition)) { - mixin = new tree.mixin.Definition("", [], mixin.rules, null, false); - mixin.originalRuleset = mixins[m].originalRuleset || mixins[m]; - } - Array.prototype.push.apply( - rules, mixin.eval(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - } - - if (match) { - if (!this.currentFileInfo || !this.currentFileInfo.reference) { - for (i = 0; i < rules.length; i++) { - rule = rules[i]; - if (rule.markReferenced) { - rule.markReferenced(); - } - } - } - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - }, - format: function (args) { - return this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")"; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1; } - else { return count; } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = []; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - if (this.params && this.params.length) { - this.params = visitor.visitArray(this.params); - } - this.rules = visitor.visitArray(this.rules); - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - /*jshint boss:true */ - var frame = new(tree.Ruleset)(null, null), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - - for(i = 0; i < args.length; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.prependRule(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) { continue; } - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic && args) { - varargs = []; - for (j = argIndex; j < args.length; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.prependRule(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + args.length + ' for ' + this.arity + ')' }; - } - - frame.prependRule(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < args.length; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames.concat(env.frames), - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - rules, ruleset; - - frame.prependRule(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules); - ruleset.originalRuleset = this; - ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames))); - if (important) { - ruleset = this.parent.makeImportant.apply(ruleset); - } - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] // the parameter variables - .concat(this.frames) // the parent namespace/mixin frames - .concat(env.frames)))) { // the current environment frames - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (! this.variadic) { - if (argsLength < this.required) { return false; } - if (argsLength > this.params.length) { return false; } - } else { - if (argsLength < (this.required - 1)) { return false; } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('-'); - this.value.genCSS(env, output); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env); - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - a = a.toColor(); - } - if (b instanceof tree.Dimension && a instanceof tree.Color) { - b = b.toColor(); - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - genCSS: function (env, output) { - this.operands[0].genCSS(env, output); - if (this.isSpaced) { - output.add(" "); - } - output.add(this.op); - if (this.isSpaced) { - output.add(" "); - } - this.operands[1].genCSS(env, output); - }, - toCSS: tree.toCSS -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('('); - this.value.genCSS(env, output); - output.add(')'); - }, - toCSS: tree.toCSS, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - genCSS: function (env, output) { - if (!this.escaped) { - output.add(this.quote, this.currentFileInfo, this.index); - } - output.add(this.value); - if (!this.escaped) { - output.add(this.quote); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.merge = merge; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - this.variable = name.charAt && (name.charAt(0) === '@'); -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index); - try { - this.value.genCSS(env, output); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index); - }, - toCSS: tree.toCSS, - eval: function (env) { - var strictMathBypass = false, name = this.name; - if (typeof name !== "string") { - // expand 'primitive' name directly to get - // things faster (~10% for benchmark.less): - name = (name.length === 1) - && (name[0] instanceof tree.Keyword) - ? name[0].value : evalName(env, name); - } - if (name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - return new(tree.Rule)(name, - this.value.eval(env), - this.important, - this.merge, - this.index, this.currentFileInfo, this.inline); - } - catch(e) { - e.index = e.index || this.index; - throw e; - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.merge, - this.index, this.currentFileInfo, this.inline); - } -}; - -function evalName(env, name) { - var value = "", i, n = name.length, - output = {add: function (s) {value += s;}}; - for (i = 0; i < n; i++) { - name[i].eval(env).genCSS(env, output); - } - return value; -} - -})(require('../tree')); - -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - if (this.paths) { - visitor.visitArray(this.paths, true); - } else if (this.selectors) { - this.selectors = visitor.visitArray(this.selectors); - } - if (this.rules && this.rules.length) { - this.rules = visitor.visitArray(this.rules); - } - }, - eval: function (env) { - var thisSelectors = this.selectors, selectors, - selCnt, i, defaultFunc = tree.defaultFunc; - if (thisSelectors && (selCnt = thisSelectors.length)) { - selectors = []; - defaultFunc.error({ - type: "Syntax", - message: "it is currently only allowed in parametric mixin guards," - }); - for (i = 0; i < selCnt; i++) { - selectors.push(thisSelectors[i].eval(env)); - } - defaultFunc.reset(); - } - - var rules = this.rules ? this.rules.slice(0) : null, - ruleset = new(tree.Ruleset)(selectors, rules, this.strictImports), - rule, subRule; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - // push the current ruleset to the frames stack - var envFrames = env.frames; - envFrames.unshift(ruleset); - - // currrent selectors - var envSelectors = env.selectors; - if (!envSelectors) { - env.selectors = envSelectors = []; - } - envSelectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - var rsRules = ruleset.rules, rsRuleCnt = rsRules ? rsRules.length : 0; - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Definition) { - rsRules[i].frames = envFrames.slice(0); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Call) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (i = 0; i < rsRules.length; i++) { - rule = rsRules[i]; - if (! (rule instanceof tree.mixin.Definition)) { - rsRules[i] = rule = rule.eval ? rule.eval(env) : rule; - // for rulesets, check if it is a css guard and can be removed - if (rule instanceof tree.Ruleset && rule.selectors && rule.selectors.length === 1) { - // check if it can be folded in (e.g. & where) - if (rule.selectors[0].isJustParentSelector()) { - rsRules.splice(i--, 1); - // cannot call if there is no selector, so we can just continue - if (!rule.selectors[0].evaldCondition) { - continue; - } - for(var j = 0; j < rule.rules.length; j++) { - subRule = rule.rules[j]; - if (!(subRule instanceof tree.Rule) || !subRule.variable) { - rsRules.splice(++i, 0, subRule); - } - } - } - } - } - } - - // Pop the stack - envFrames.shift(); - envSelectors.shift(); - - if (env.mediaBlocks) { - for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var rules = this.rules, i, importRules; - if (!rules) { return; } - - for (i = 0; i < rules.length; i++) { - if (rules[i] instanceof tree.Import) { - importRules = rules[i].eval(env); - if (importRules && importRules.length) { - rules.splice.apply(rules, [i, 1].concat(importRules)); - i+= importRules.length-1; - } else { - rules.splice(i, 1, importRules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - // lets you call a css selector with a guard - matchCondition: function (args, env) { - var lastSelector = this.selectors[this.selectors.length-1]; - if (!lastSelector.evaldCondition) { - return false; - } - if (lastSelector.condition && - !lastSelector.condition.eval( - new(tree.evalEnv)(env, - env.frames))) { - return false; - } - return true; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (!this._variables) { - this._variables = !this.rules ? {} : this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - return this._variables; - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (!this.rules) { return null; } - - var _Ruleset = tree.Ruleset, _MixinDefinition = tree.mixin.Definition, - filtRules = [], rules = this.rules, cnt = rules.length, - i, rule; - - for (i = 0; i < cnt; i++) { - rule = rules[i]; - if ((rule instanceof _Ruleset) || (rule instanceof _MixinDefinition)) { - filtRules.push(rule); - } - } - - return filtRules; - }, - prependRule: function (rule) { - var rules = this.rules; - if (rules) { rules.unshift(rule); } else { this.rules = [ rule ]; } - }, - find: function (selector, self) { - self = self || this; - var rules = [], match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key]; } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - match = selector.match(rule.selectors[j]); - if (match) { - if (selector.elements.length > match) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(match)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - this._lookups[key] = rules; - return rules; - }, - genCSS: function (env, output) { - var i, j, - ruleNodes = [], - rulesetNodes = [], - rulesetNodeCnt, - debugInfo, // Line number debugging - rule, - path; - - env.tabLevel = (env.tabLevel || 0); - - if (!this.root) { - env.tabLevel++; - } - - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "), - sep; - - for (i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - if (rule.rules || (rule instanceof tree.Media) || rule instanceof tree.Directive || (this.root && rule instanceof tree.Comment)) { - rulesetNodes.push(rule); - } else { - ruleNodes.push(rule); - } - } - - // If this is the root node, we don't render - // a selector, or {}. - if (!this.root) { - debugInfo = tree.debugInfo(env, this, tabSetStr); - - if (debugInfo) { - output.add(debugInfo); - output.add(tabSetStr); - } - - var paths = this.paths, pathCnt = paths.length, - pathSubCnt; - - sep = env.compress ? ',' : (',\n' + tabSetStr); - - for (i = 0; i < pathCnt; i++) { - path = paths[i]; - if (!(pathSubCnt = path.length)) { continue; } - if (i > 0) { output.add(sep); } - - env.firstSelector = true; - path[0].genCSS(env, output); - - env.firstSelector = false; - for (j = 1; j < pathSubCnt; j++) { - path[j].genCSS(env, output); - } - } - - output.add((env.compress ? '{' : ' {\n') + tabRuleStr); - } - - // Compile rules and rulesets - for (i = 0; i < ruleNodes.length; i++) { - rule = ruleNodes[i]; - - // @page{ directive ends up with root elements inside it, a mix of rules and rulesets - // In this instance we do not know whether it is the last property - if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) { - env.lastRule = true; - } - - if (rule.genCSS) { - rule.genCSS(env, output); - } else if (rule.value) { - output.add(rule.value.toString()); - } - - if (!env.lastRule) { - output.add(env.compress ? '' : ('\n' + tabRuleStr)); - } else { - env.lastRule = false; - } - } - - if (!this.root) { - output.add((env.compress ? '}' : '\n' + tabSetStr + '}')); - env.tabLevel--; - } - - sep = (env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr); - rulesetNodeCnt = rulesetNodes.length; - if (rulesetNodeCnt) { - if (ruleNodes.length && sep) { output.add(sep); } - rulesetNodes[0].genCSS(env, output); - for (i = 1; i < rulesetNodeCnt; i++) { - if (sep) { output.add(sep); } - rulesetNodes[i].genCSS(env, output); - } - } - - if (!output.isEmpty() && !env.compress && this.firstRoot) { - output.add('\n'); - } - }, - - toCSS: tree.toCSS, - - markReferenced: function () { - for (var s = 0; s < this.selectors.length; s++) { - this.selectors[s].markReferenced(); - } - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for (i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for (j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length === 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', el.index, el.currentFileInfo)); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for (k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = selector.createDerived([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for (i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length === 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for (i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); - -(function (tree) { - -tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) { - this.elements = elements; - this.extendList = extendList; - this.condition = condition; - this.currentFileInfo = currentFileInfo || {}; - this.isReferenced = isReferenced; - if (!condition) { - this.evaldCondition = true; - } -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - if (this.elements) { - this.elements = visitor.visitArray(this.elements); - } - if (this.extendList) { - this.extendList = visitor.visitArray(this.extendList); - } - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - createDerived: function(elements, extendList, evaldCondition) { - evaldCondition = (evaldCondition != null) ? evaldCondition : this.evaldCondition; - var newSelector = new(tree.Selector)(elements, extendList || this.extendList, null, this.index, this.currentFileInfo, this.isReferenced); - newSelector.evaldCondition = evaldCondition; - newSelector.mediaEmpty = this.mediaEmpty; - return newSelector; - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - olen, i; - - other.CacheElements(); - - olen = other._elements.length; - if (olen === 0 || len < olen) { - return 0; - } else { - for (i = 0; i < olen; i++) { - if (elements[i].value !== other._elements[i]) { - return 0; - } - } - } - - return olen; // return number of matched elements - }, - CacheElements: function(){ - var css = '', len, v, i; - - if( !this._elements ){ - - len = this.elements.length; - for(i = 0; i < len; i++){ - - v = this.elements[i]; - css += v.combinator.value; - - if( !v.value.value ){ - css += v.value; - continue; - } - - if( typeof v.value.value !== "string" ){ - css = ''; - break; - } - css += v.value.value; - } - - this._elements = css.match(/[,&#\.\w-]([\w-]|(\\.))*/g); - - if (this._elements) { - if (this._elements[0] === "&") { - this._elements.shift(); - } - - } else { - this._elements = []; - } - - } - }, - isJustParentSelector: function() { - return !this.mediaEmpty && - this.elements.length === 1 && - this.elements[0].value === '&' && - (this.elements[0].combinator.value === ' ' || this.elements[0].combinator.value === ''); - }, - eval: function (env) { - var evaldCondition = this.condition && this.condition.eval(env), - elements = this.elements, extendList = this.extendList; - - elements = elements && elements.map(function (e) { return e.eval(env); }); - extendList = extendList && extendList.map(function(extend) { return extend.eval(env); }); - - return this.createDerived(elements, extendList, evaldCondition); - }, - genCSS: function (env, output) { - var i, element; - if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") { - output.add(' ', this.currentFileInfo, this.index); - } - if (!this._css) { - //TODO caching? speed comparison? - for(i = 0; i < this.elements.length; i++) { - element = this.elements[i]; - element.genCSS(env, output); - } - } - }, - toCSS: tree.toCSS, - markReferenced: function () { - this.isReferenced = true; - }, - getIsReferenced: function() { - return !this.currentFileInfo.reference || this.isReferenced; - }, - getIsOutput: function() { - return this.evaldCondition; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - eval: function () { return this; } -}; - -})(require('../tree')); - -(function (tree) { - -tree.URL = function (val, currentFileInfo, isEvald) { - this.value = val; - this.currentFileInfo = currentFileInfo; - this.isEvald = isEvald; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add("url("); - this.value.genCSS(env, output); - output.add(")"); - }, - toCSS: tree.toCSS, - eval: function (ctx) { - var val = this.value.eval(ctx), - rootpath; - - if (!this.isEvald) { - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - val.value = ctx.normalizePath(val.value); - - // Add url args if enabled - if (ctx.urlArgs) { - if (!val.value.match(/^\s*data:/)) { - var delimiter = val.value.indexOf('?') === -1 ? '?' : '&'; - var urlArgs = delimiter + ctx.urlArgs; - if (val.value.indexOf('#') !== -1) { - val.value = val.value.replace('#', urlArgs + '#'); - } else { - val.value += urlArgs; - } - } - } - } - - return new(tree.URL)(val, this.currentFileInfo, true); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - genCSS: function (env, output) { - var i; - for(i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i+1 < this.value.length) { - output.add((env && env.compress) ? ',' : ', '); - } - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { - this.name = name; - this.index = index; - this.currentFileInfo = currentFileInfo || {}; -}; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, name = this.name; - - if (name.indexOf('@@') === 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - variable = tree.find(env.frames, function (frame) { - var v = frame.variable(name); - if (v) { - return v.value.eval(env); - } - }); - if (variable) { - this.evaluating = false; - return variable; - } else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); - -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // map - filename to contents of all the files - 'contentsIgnoredChars', // map - filename to lines at the begining of each file to ignore - 'relativeUrls', // option - whether to adjust URL's to be relative - 'rootpath', // option - rootpath to append to URL's - 'strictImports', // option - - 'insecure', // option - whether to allow imports from insecure ssl hosts - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true - 'mime', // browser only - mime type for sheet import - 'useFileCache', // browser only - whether to use the per file session cache - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' - absolute path to the entry file - // 'reference' - whether the file should not be output and only output parts that are referenced - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.contentsIgnoredChars) { this.contentsIgnoredChars = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits', // whether units need to evaluate correctly - 'cleancss', // whether to compress with clean-css - 'sourceMap', // whether to output a source map - 'importMultiple', // whether we are currently importing multiple copies - 'urlArgs' // whether to add args into url tokens - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - tree.evalEnv.prototype.normalizePath = function( path ) { - var - segments = path.split("/").reverse(), - segment; - - path = []; - while (segments.length !== 0 ) { - segment = segments.pop(); - switch( segment ) { - case ".": - break; - case "..": - if ((path.length === 0) || (path[path.length - 1] === "..")) { - path.push( segment ); - } else { - path.pop(); - } - break; - default: - path.push( segment ); - break; - } - } - - return path.join("/"); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - }; - -})(require('./tree')); - -(function (tree) { - - var _visitArgs = { visitDeeper: true }, - _hasIndexed = false; - - function _noop(node) { - return node; - } - - function indexNodeTypes(parent, ticker) { - // add .typeIndex to tree node types for lookup table - var key, child; - for (key in parent) { - if (parent.hasOwnProperty(key)) { - child = parent[key]; - switch (typeof child) { - case "function": - // ignore bound functions directly on tree which do not have a prototype - // or aren't nodes - if (child.prototype && child.prototype.type) { - child.prototype.typeIndex = ticker++; - } - break; - case "object": - ticker = indexNodeTypes(child, ticker); - break; - } - } - } - return ticker; - } - - tree.visitor = function(implementation) { - this._implementation = implementation; - this._visitFnCache = []; - - if (!_hasIndexed) { - indexNodeTypes(tree, 1); - _hasIndexed = true; - } - }; - - tree.visitor.prototype = { - visit: function(node) { - if (!node) { - return node; - } - - var nodeTypeIndex = node.typeIndex; - if (!nodeTypeIndex) { - return node; - } - - var visitFnCache = this._visitFnCache, - impl = this._implementation, - aryIndx = nodeTypeIndex << 1, - outAryIndex = aryIndx | 1, - func = visitFnCache[aryIndx], - funcOut = visitFnCache[outAryIndex], - visitArgs = _visitArgs, - fnName; - - visitArgs.visitDeeper = true; - - if (!func) { - fnName = "visit" + node.type; - func = impl[fnName] || _noop; - funcOut = impl[fnName + "Out"] || _noop; - visitFnCache[aryIndx] = func; - visitFnCache[outAryIndex] = funcOut; - } - - if (func !== _noop) { - var newNode = func.call(impl, node, visitArgs); - if (impl.isReplacing) { - node = newNode; - } - } - - if (visitArgs.visitDeeper && node && node.accept) { - node.accept(this); - } - - if (funcOut != _noop) { - funcOut.call(impl, node); - } - - return node; - }, - visitArray: function(nodes, nonReplacing) { - if (!nodes) { - return nodes; - } - - var cnt = nodes.length, i; - - // Non-replacing - if (nonReplacing || !this._implementation.isReplacing) { - for (i = 0; i < cnt; i++) { - this.visit(nodes[i]); - } - return nodes; - } - - // Replacing - var out = []; - for (i = 0; i < cnt; i++) { - var evald = this.visit(nodes[i]); - if (!evald.splice) { - out.push(evald); - } else if (evald.length) { - this.flatten(evald, out); - } - } - return out; - }, - flatten: function(arr, out) { - if (!out) { - out = []; - } - - var cnt, i, item, - nestedCnt, j, nestedItem; - - for (i = 0, cnt = arr.length; i < cnt; i++) { - item = arr[i]; - if (!item.splice) { - out.push(item); - continue; - } - - for (j = 0, nestedCnt = item.length; j < nestedCnt; j++) { - nestedItem = item[j]; - if (!nestedItem.splice) { - out.push(nestedItem); - } else if (nestedItem.length) { - this.flatten(nestedItem, out); - } - } - } - - return out; - } - }; - -})(require('./tree')); -(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode, - inlineCSS = importNode.options.inline; - - if (!importNode.css || inlineCSS) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - - if (importNode.options.multiple) { - env.importMultiple = true; - } - - this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, imported, fullPath) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - - if (imported && !env.importMultiple) { importNode.skip = imported; } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - importNode.importedFilename = fullPath; - if (!inlineCSS && !importNode.skip) { - new(tree.importVisitor)(importVisitor._importer, subFinish, env) - .run(root); - return; - } - } - - subFinish(); - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree')); -(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1], - paths = [], selectors; - - this.contexts.push(paths); - - if (! rulesetNode.root) { - selectors = rulesetNode.selectors; - if (selectors) { - selectors = selectors.filter(function(selector) { return selector.getIsOutput(); }); - rulesetNode.selectors = selectors.length ? selectors : (selectors = null); - if (selectors) { rulesetNode.joinSelectors(paths, context, selectors); } - } - if (!selectors) { rulesetNode.rules = null; } - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree')); -(function (tree) { - tree.toCSSVisitor = function(env) { - this._visitor = new tree.visitor(this); - this._env = env; - }; - - tree.toCSSVisitor.prototype = { - isReplacing: true, - run: function (root) { - return this._visitor.visit(root); - }, - - visitRule: function (ruleNode, visitArgs) { - if (ruleNode.variable) { - return []; - } - return ruleNode; - }, - - visitMixinDefinition: function (mixinNode, visitArgs) { - // mixin definitions do not get eval'd - this means they keep state - // so we have to clear that state here so it isn't used if toCSS is called twice - mixinNode.frames = []; - return []; - }, - - visitExtend: function (extendNode, visitArgs) { - return []; - }, - - visitComment: function (commentNode, visitArgs) { - if (commentNode.isSilent(this._env)) { - return []; - } - return commentNode; - }, - - visitMedia: function(mediaNode, visitArgs) { - mediaNode.accept(this._visitor); - visitArgs.visitDeeper = false; - - if (!mediaNode.rules.length) { - return []; - } - return mediaNode; - }, - - visitDirective: function(directiveNode, visitArgs) { - if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) { - return []; - } - if (directiveNode.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (this.charset) { - if (directiveNode.debugInfo) { - var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n"); - comment.debugInfo = directiveNode.debugInfo; - return this._visitor.visit(comment); - } - return []; - } - this.charset = true; - } - return directiveNode; - }, - - checkPropertiesInRoot: function(rules) { - var ruleNode; - for(var i = 0; i < rules.length; i++) { - ruleNode = rules[i]; - if (ruleNode instanceof tree.Rule && !ruleNode.variable) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null}; - } - } - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var rule, rulesets = []; - if (rulesetNode.firstRoot) { - this.checkPropertiesInRoot(rulesetNode.rules); - } - if (! rulesetNode.root) { - if (rulesetNode.paths) { - rulesetNode.paths = rulesetNode.paths - .filter(function(p) { - var i; - if (p[0].elements[0].combinator.value === ' ') { - p[0].elements[0].combinator = new(tree.Combinator)(''); - } - for(i = 0; i < p.length; i++) { - if (p[i].getIsReferenced() && p[i].getIsOutput()) { - return true; - } - } - return false; - }); - } - - // Compile rules and rulesets - var nodeRules = rulesetNode.rules, nodeRuleCnt = nodeRules ? nodeRules.length : 0; - for (var i = 0; i < nodeRuleCnt; ) { - rule = nodeRules[i]; - if (rule && rule.rules) { - // visit because we are moving them out from being a child - rulesets.push(this._visitor.visit(rule)); - nodeRules.splice(i, 1); - nodeRuleCnt--; - continue; - } - i++; - } - // accept the visitor to remove rules and refactor itself - // then we can decide now whether we want it or not - if (nodeRuleCnt > 0) { - rulesetNode.accept(this._visitor); - } else { - rulesetNode.rules = null; - } - visitArgs.visitDeeper = false; - - nodeRules = rulesetNode.rules; - if (nodeRules) { - this._mergeRules(nodeRules); - nodeRules = rulesetNode.rules; - } - if (nodeRules) { - this._removeDuplicateRules(nodeRules); - nodeRules = rulesetNode.rules; - } - - // now decide whether we keep the ruleset - if (nodeRules && nodeRules.length > 0 && rulesetNode.paths.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } else { - rulesetNode.accept(this._visitor); - visitArgs.visitDeeper = false; - if (rulesetNode.firstRoot || (rulesetNode.rules && rulesetNode.rules.length > 0)) { - rulesets.splice(0, 0, rulesetNode); - } - } - if (rulesets.length === 1) { - return rulesets[0]; - } - return rulesets; - }, - - _removeDuplicateRules: function(rules) { - if (!rules) { return; } - - // remove duplicates - var ruleCache = {}, - ruleList, rule, i; - - for(i = rules.length - 1; i >= 0 ; i--) { - rule = rules[i]; - if (rule instanceof tree.Rule) { - if (!ruleCache[rule.name]) { - ruleCache[rule.name] = rule; - } else { - ruleList = ruleCache[rule.name]; - if (ruleList instanceof tree.Rule) { - ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)]; - } - var ruleCSS = rule.toCSS(this._env); - if (ruleList.indexOf(ruleCSS) !== -1) { - rules.splice(i, 1); - } else { - ruleList.push(ruleCSS); - } - } - } - } - }, - - _mergeRules: function (rules) { - if (!rules) { return; } - - var groups = {}, - parts, - rule, - key; - - for (var i = 0; i < rules.length; i++) { - rule = rules[i]; - - if ((rule instanceof tree.Rule) && rule.merge) { - key = [rule.name, - rule.important ? "!" : ""].join(","); - - if (!groups[key]) { - groups[key] = []; - } else { - rules.splice(i--, 1); - } - - groups[key].push(rule); - } - } - - Object.keys(groups).map(function (k) { - parts = groups[k]; - - if (parts.length > 1) { - rule = parts[0]; - - rule.value = new (tree.Value)(parts.map(function (p) { - return p.value; - })); - } - }); - } - }; - -})(require('./tree')); -(function (tree) { - /*jshint loopfunc:true */ - - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - var rules = rulesetNode.rules, ruleCnt = rules ? rules.length : 0; - for(i = 0; i < ruleCnt; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rules[i]); - rulesetNode.extendOnEveryPath = true; - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - var paths = rulesetNode.paths; - for(i = 0; i < paths.length; i++) { - var selectorPath = paths[i], - selector = selectorPath[selectorPath.length - 1], - selExtendList = selector.extendList; - - extendList = selExtendList ? selExtendList.slice(0).concat(allSelectorsExtendList) - : allSelectorsExtendList; - - if (extendList) { - extendList = extendList.map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - } - - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if( extend.parent_ids.indexOf( targetExtend.object_id ) >= 0 ){ continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parent_ids = newExtend.parent_ids.concat(targetExtend.parent_ids, extend.parent_ids); - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (rulesetNode.extendOnEveryPath) { continue; } - var extendList = selectorPath[selectorPath.length-1].extendList; - if (extendList && extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator === '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - elementValue1 = elementValue1.value; - elementValue2 = elementValue2.value; - if (elementValue1 instanceof tree.Selector) { - if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) { - return false; - } - for(var i = 0; i currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - newElements = selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)); - - if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) { - path[path.length - 1].elements = - path[path.length - 1].elements.concat(newElements); - } else { - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - newElements - )); - } - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.sourceMapOutput = function (options) { - this._css = []; - this._rootNode = options.rootNode; - this._writeSourceMap = options.writeSourceMap; - this._contentsMap = options.contentsMap; - this._contentsIgnoredCharsMap = options.contentsIgnoredCharsMap; - this._sourceMapFilename = options.sourceMapFilename; - this._outputFilename = options.outputFilename; - this._sourceMapURL = options.sourceMapURL; - if (options.sourceMapBasepath) { - this._sourceMapBasepath = options.sourceMapBasepath.replace(/\\/g, '/'); - } - this._sourceMapRootpath = options.sourceMapRootpath; - this._outputSourceFiles = options.outputSourceFiles; - this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator; - - if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') { - this._sourceMapRootpath += '/'; - } - - this._lineNumber = 0; - this._column = 0; - }; - - tree.sourceMapOutput.prototype.normalizeFilename = function(filename) { - filename = filename.replace(/\\/g, '/'); - - if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) { - filename = filename.substring(this._sourceMapBasepath.length); - if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') { - filename = filename.substring(1); - } - } - return (this._sourceMapRootpath || "") + filename; - }; - - tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) { - - //ignore adding empty strings - if (!chunk) { - return; - } - - var lines, - sourceLines, - columns, - sourceColumns, - i; - - if (fileInfo) { - var inputSource = this._contentsMap[fileInfo.filename]; - - // remove vars/banner added to the top of the file - if (this._contentsIgnoredCharsMap[fileInfo.filename]) { - // adjust the index - index -= this._contentsIgnoredCharsMap[fileInfo.filename]; - if (index < 0) { index = 0; } - // adjust the source - inputSource = inputSource.slice(this._contentsIgnoredCharsMap[fileInfo.filename]); - } - inputSource = inputSource.substring(0, index); - sourceLines = inputSource.split("\n"); - sourceColumns = sourceLines[sourceLines.length-1]; - } - - lines = chunk.split("\n"); - columns = lines[lines.length-1]; - - if (fileInfo) { - if (!mapLines) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column}, - original: { line: sourceLines.length, column: sourceColumns.length}, - source: this.normalizeFilename(fileInfo.filename)}); - } else { - for(i = 0; i < lines.length; i++) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0}, - original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0}, - source: this.normalizeFilename(fileInfo.filename)}); - } - } - } - - if (lines.length === 1) { - this._column += columns.length; - } else { - this._lineNumber += lines.length - 1; - this._column = columns.length; - } - - this._css.push(chunk); - }; - - tree.sourceMapOutput.prototype.isEmpty = function() { - return this._css.length === 0; - }; - - tree.sourceMapOutput.prototype.toCSS = function(env) { - this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null }); - - if (this._outputSourceFiles) { - for(var filename in this._contentsMap) { - if (this._contentsMap.hasOwnProperty(filename)) - { - var source = this._contentsMap[filename]; - if (this._contentsIgnoredCharsMap[filename]) { - source = source.slice(this._contentsIgnoredCharsMap[filename]); - } - this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), source); - } - } - } - - this._rootNode.genCSS(env, this); - - if (this._css.length > 0) { - var sourceMapURL, - sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); - - if (this._sourceMapURL) { - sourceMapURL = this._sourceMapURL; - } else if (this._sourceMapFilename) { - sourceMapURL = this.normalizeFilename(this._sourceMapFilename); - } - - if (this._writeSourceMap) { - this._writeSourceMap(sourceMapContent); - } else { - sourceMapURL = "data:application/json," + encodeURIComponent(sourceMapContent); - } - - if (sourceMapURL) { - this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */"); - } - } - - return this._css.join(''); - }; - -})(require('./tree')); - -// wraps the source-map code in a less module -(function() { - less.modules["source-map"] = function() { - -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ - -/** - * Define a module along with a payload. - * @param {string} moduleName Name for the payload - * @param {ignored} deps Ignored. For compatibility with CommonJS AMD Spec - * @param {function} payload Function with (require, exports, module) params - */ -function define(moduleName, deps, payload) { - if (typeof moduleName != "string") { - throw new TypeError('Expected string, got: ' + moduleName); - } - - if (arguments.length == 2) { - payload = deps; - } - - if (moduleName in define.modules) { - throw new Error("Module already defined: " + moduleName); - } - define.modules[moduleName] = payload; -}; - -/** - * The global store of un-instantiated modules - */ -define.modules = {}; - - -/** - * We invoke require() in the context of a Domain so we can have multiple - * sets of modules running separate from each other. - * This contrasts with JSMs which are singletons, Domains allows us to - * optionally load a CommonJS module twice with separate data each time. - * Perhaps you want 2 command lines with a different set of commands in each, - * for example. - */ -function Domain() { - this.modules = {}; - this._currentModule = null; -} - -(function () { - - /** - * Lookup module names and resolve them by calling the definition function if - * needed. - * There are 2 ways to call this, either with an array of dependencies and a - * callback to call when the dependencies are found (which can happen - * asynchronously in an in-page context) or with a single string an no callback - * where the dependency is resolved synchronously and returned. - * The API is designed to be compatible with the CommonJS AMD spec and - * RequireJS. - * @param {string[]|string} deps A name, or names for the payload - * @param {function|undefined} callback Function to call when the dependencies - * are resolved - * @return {undefined|object} The module required or undefined for - * array/callback method - */ - Domain.prototype.require = function(deps, callback) { - if (Array.isArray(deps)) { - var params = deps.map(function(dep) { - return this.lookup(dep); - }, this); - if (callback) { - callback.apply(null, params); - } - return undefined; - } - else { - return this.lookup(deps); - } - }; - - function normalize(path) { - var bits = path.split('/'); - var i = 1; - while (i < bits.length) { - if (bits[i] === '..') { - bits.splice(i-1, 1); - } else if (bits[i] === '.') { - bits.splice(i, 1); - } else { - i++; - } - } - return bits.join('/'); - } - - function join(a, b) { - a = a.trim(); - b = b.trim(); - if (/^\//.test(b)) { - return b; - } else { - return a.replace(/\/*$/, '/') + b; - } - } - - function dirname(path) { - var bits = path.split('/'); - bits.pop(); - return bits.join('/'); - } - - /** - * Lookup module names and resolve them by calling the definition function if - * needed. - * @param {string} moduleName A name for the payload to lookup - * @return {object} The module specified by aModuleName or null if not found. - */ - Domain.prototype.lookup = function(moduleName) { - if (/^\./.test(moduleName)) { - moduleName = normalize(join(dirname(this._currentModule), moduleName)); - } - - if (moduleName in this.modules) { - var module = this.modules[moduleName]; - return module; - } - - if (!(moduleName in define.modules)) { - throw new Error("Module not defined: " + moduleName); - } - - var module = define.modules[moduleName]; - - if (typeof module == "function") { - var exports = {}; - var previousModule = this._currentModule; - this._currentModule = moduleName; - module(this.require.bind(this), exports, { id: moduleName, uri: "" }); - this._currentModule = previousModule; - module = exports; - } - - // cache the resulting module object for next time - this.modules[moduleName] = module; - - return module; - }; - -}()); - -define.Domain = Domain; -define.globalDomain = new Domain(); -var require = define.globalDomain.require.bind(define.globalDomain); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/source-map-generator', ['require', 'exports', 'module' , 'source-map/base64-vlq', 'source-map/util', 'source-map/array-set'], function(require, exports, module) { - - var base64VLQ = require('./base64-vlq'); - var util = require('./util'); - var ArraySet = require('./array-set').ArraySet; - - /** - * An instance of the SourceMapGenerator represents a source map which is - * being built incrementally. To create a new one, you must pass an object - * with the following properties: - * - * - file: The filename of the generated source. - * - sourceRoot: An optional root for all URLs in this source map. - */ - function SourceMapGenerator(aArgs) { - this._file = util.getArg(aArgs, 'file'); - this._sourceRoot = util.getArg(aArgs, 'sourceRoot', null); - this._sources = new ArraySet(); - this._names = new ArraySet(); - this._mappings = []; - this._sourcesContents = null; - } - - SourceMapGenerator.prototype._version = 3; - - /** - * Creates a new SourceMapGenerator based on a SourceMapConsumer - * - * @param aSourceMapConsumer The SourceMap. - */ - SourceMapGenerator.fromSourceMap = - function SourceMapGenerator_fromSourceMap(aSourceMapConsumer) { - var sourceRoot = aSourceMapConsumer.sourceRoot; - var generator = new SourceMapGenerator({ - file: aSourceMapConsumer.file, - sourceRoot: sourceRoot - }); - aSourceMapConsumer.eachMapping(function (mapping) { - var newMapping = { - generated: { - line: mapping.generatedLine, - column: mapping.generatedColumn - } - }; - - if (mapping.source) { - newMapping.source = mapping.source; - if (sourceRoot) { - newMapping.source = util.relative(sourceRoot, newMapping.source); - } - - newMapping.original = { - line: mapping.originalLine, - column: mapping.originalColumn - }; - - if (mapping.name) { - newMapping.name = mapping.name; - } - } - - generator.addMapping(newMapping); - }); - aSourceMapConsumer.sources.forEach(function (sourceFile) { - var content = aSourceMapConsumer.sourceContentFor(sourceFile); - if (content) { - generator.setSourceContent(sourceFile, content); - } - }); - return generator; - }; - - /** - * Add a single mapping from original source line and column to the generated - * source's line and column for this source map being created. The mapping - * object should have the following properties: - * - * - generated: An object with the generated line and column positions. - * - original: An object with the original line and column positions. - * - source: The original source file (relative to the sourceRoot). - * - name: An optional original token name for this mapping. - */ - SourceMapGenerator.prototype.addMapping = - function SourceMapGenerator_addMapping(aArgs) { - var generated = util.getArg(aArgs, 'generated'); - var original = util.getArg(aArgs, 'original', null); - var source = util.getArg(aArgs, 'source', null); - var name = util.getArg(aArgs, 'name', null); - - this._validateMapping(generated, original, source, name); - - if (source && !this._sources.has(source)) { - this._sources.add(source); - } - - if (name && !this._names.has(name)) { - this._names.add(name); - } - - this._mappings.push({ - generatedLine: generated.line, - generatedColumn: generated.column, - originalLine: original != null && original.line, - originalColumn: original != null && original.column, - source: source, - name: name - }); - }; - - /** - * Set the source content for a source file. - */ - SourceMapGenerator.prototype.setSourceContent = - function SourceMapGenerator_setSourceContent(aSourceFile, aSourceContent) { - var source = aSourceFile; - if (this._sourceRoot) { - source = util.relative(this._sourceRoot, source); - } - - if (aSourceContent !== null) { - // Add the source content to the _sourcesContents map. - // Create a new _sourcesContents map if the property is null. - if (!this._sourcesContents) { - this._sourcesContents = {}; - } - this._sourcesContents[util.toSetString(source)] = aSourceContent; - } else { - // Remove the source file from the _sourcesContents map. - // If the _sourcesContents map is empty, set the property to null. - delete this._sourcesContents[util.toSetString(source)]; - if (Object.keys(this._sourcesContents).length === 0) { - this._sourcesContents = null; - } - } - }; - - /** - * Applies the mappings of a sub-source-map for a specific source file to the - * source map being generated. Each mapping to the supplied source file is - * rewritten using the supplied source map. Note: The resolution for the - * resulting mappings is the minimium of this map and the supplied map. - * - * @param aSourceMapConsumer The source map to be applied. - * @param aSourceFile Optional. The filename of the source file. - * If omitted, SourceMapConsumer's file property will be used. - */ - SourceMapGenerator.prototype.applySourceMap = - function SourceMapGenerator_applySourceMap(aSourceMapConsumer, aSourceFile) { - // If aSourceFile is omitted, we will use the file property of the SourceMap - if (!aSourceFile) { - aSourceFile = aSourceMapConsumer.file; - } - var sourceRoot = this._sourceRoot; - // Make "aSourceFile" relative if an absolute Url is passed. - if (sourceRoot) { - aSourceFile = util.relative(sourceRoot, aSourceFile); - } - // Applying the SourceMap can add and remove items from the sources and - // the names array. - var newSources = new ArraySet(); - var newNames = new ArraySet(); - - // Find mappings for the "aSourceFile" - this._mappings.forEach(function (mapping) { - if (mapping.source === aSourceFile && mapping.originalLine) { - // Check if it can be mapped by the source map, then update the mapping. - var original = aSourceMapConsumer.originalPositionFor({ - line: mapping.originalLine, - column: mapping.originalColumn - }); - if (original.source !== null) { - // Copy mapping - if (sourceRoot) { - mapping.source = util.relative(sourceRoot, original.source); - } else { - mapping.source = original.source; - } - mapping.originalLine = original.line; - mapping.originalColumn = original.column; - if (original.name !== null && mapping.name !== null) { - // Only use the identifier name if it's an identifier - // in both SourceMaps - mapping.name = original.name; - } - } - } - - var source = mapping.source; - if (source && !newSources.has(source)) { - newSources.add(source); - } - - var name = mapping.name; - if (name && !newNames.has(name)) { - newNames.add(name); - } - - }, this); - this._sources = newSources; - this._names = newNames; - - // Copy sourcesContents of applied map. - aSourceMapConsumer.sources.forEach(function (sourceFile) { - var content = aSourceMapConsumer.sourceContentFor(sourceFile); - if (content) { - if (sourceRoot) { - sourceFile = util.relative(sourceRoot, sourceFile); - } - this.setSourceContent(sourceFile, content); - } - }, this); - }; - - /** - * A mapping can have one of the three levels of data: - * - * 1. Just the generated position. - * 2. The Generated position, original position, and original source. - * 3. Generated and original position, original source, as well as a name - * token. - * - * To maintain consistency, we validate that any new mapping being added falls - * in to one of these categories. - */ - SourceMapGenerator.prototype._validateMapping = - function SourceMapGenerator_validateMapping(aGenerated, aOriginal, aSource, - aName) { - if (aGenerated && 'line' in aGenerated && 'column' in aGenerated - && aGenerated.line > 0 && aGenerated.column >= 0 - && !aOriginal && !aSource && !aName) { - // Case 1. - return; - } - else if (aGenerated && 'line' in aGenerated && 'column' in aGenerated - && aOriginal && 'line' in aOriginal && 'column' in aOriginal - && aGenerated.line > 0 && aGenerated.column >= 0 - && aOriginal.line > 0 && aOriginal.column >= 0 - && aSource) { - // Cases 2 and 3. - return; - } - else { - throw new Error('Invalid mapping: ' + JSON.stringify({ - generated: aGenerated, - source: aSource, - original: aOriginal, - name: aName - })); - } - }; - - /** - * Serialize the accumulated mappings in to the stream of base 64 VLQs - * specified by the source map format. - */ - SourceMapGenerator.prototype._serializeMappings = - function SourceMapGenerator_serializeMappings() { - var previousGeneratedColumn = 0; - var previousGeneratedLine = 1; - var previousOriginalColumn = 0; - var previousOriginalLine = 0; - var previousName = 0; - var previousSource = 0; - var result = ''; - var mapping; - - // The mappings must be guaranteed to be in sorted order before we start - // serializing them or else the generated line numbers (which are defined - // via the ';' separators) will be all messed up. Note: it might be more - // performant to maintain the sorting as we insert them, rather than as we - // serialize them, but the big O is the same either way. - this._mappings.sort(util.compareByGeneratedPositions); - - for (var i = 0, len = this._mappings.length; i < len; i++) { - mapping = this._mappings[i]; - - if (mapping.generatedLine !== previousGeneratedLine) { - previousGeneratedColumn = 0; - while (mapping.generatedLine !== previousGeneratedLine) { - result += ';'; - previousGeneratedLine++; - } - } - else { - if (i > 0) { - if (!util.compareByGeneratedPositions(mapping, this._mappings[i - 1])) { - continue; - } - result += ','; - } - } - - result += base64VLQ.encode(mapping.generatedColumn - - previousGeneratedColumn); - previousGeneratedColumn = mapping.generatedColumn; - - if (mapping.source) { - result += base64VLQ.encode(this._sources.indexOf(mapping.source) - - previousSource); - previousSource = this._sources.indexOf(mapping.source); - - // lines are stored 0-based in SourceMap spec version 3 - result += base64VLQ.encode(mapping.originalLine - 1 - - previousOriginalLine); - previousOriginalLine = mapping.originalLine - 1; - - result += base64VLQ.encode(mapping.originalColumn - - previousOriginalColumn); - previousOriginalColumn = mapping.originalColumn; - - if (mapping.name) { - result += base64VLQ.encode(this._names.indexOf(mapping.name) - - previousName); - previousName = this._names.indexOf(mapping.name); - } - } - } - - return result; - }; - - SourceMapGenerator.prototype._generateSourcesContent = - function SourceMapGenerator_generateSourcesContent(aSources, aSourceRoot) { - return aSources.map(function (source) { - if (!this._sourcesContents) { - return null; - } - if (aSourceRoot) { - source = util.relative(aSourceRoot, source); - } - var key = util.toSetString(source); - return Object.prototype.hasOwnProperty.call(this._sourcesContents, - key) - ? this._sourcesContents[key] - : null; - }, this); - }; - - /** - * Externalize the source map. - */ - SourceMapGenerator.prototype.toJSON = - function SourceMapGenerator_toJSON() { - var map = { - version: this._version, - file: this._file, - sources: this._sources.toArray(), - names: this._names.toArray(), - mappings: this._serializeMappings() - }; - if (this._sourceRoot) { - map.sourceRoot = this._sourceRoot; - } - if (this._sourcesContents) { - map.sourcesContent = this._generateSourcesContent(map.sources, map.sourceRoot); - } - - return map; - }; - - /** - * Render the source map being generated to a string. - */ - SourceMapGenerator.prototype.toString = - function SourceMapGenerator_toString() { - return JSON.stringify(this); - }; - - exports.SourceMapGenerator = SourceMapGenerator; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - * - * Based on the Base 64 VLQ implementation in Closure Compiler: - * https://code.google.com/p/closure-compiler/source/browse/trunk/src/com/google/debugging/sourcemap/Base64VLQ.java - * - * Copyright 2011 The Closure Compiler Authors. All rights reserved. - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following - * disclaimer in the documentation and/or other materials provided - * with the distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ -define('source-map/base64-vlq', ['require', 'exports', 'module' , 'source-map/base64'], function(require, exports, module) { - - var base64 = require('./base64'); - - // A single base 64 digit can contain 6 bits of data. For the base 64 variable - // length quantities we use in the source map spec, the first bit is the sign, - // the next four bits are the actual value, and the 6th bit is the - // continuation bit. The continuation bit tells us whether there are more - // digits in this value following this digit. - // - // Continuation - // | Sign - // | | - // V V - // 101011 - - var VLQ_BASE_SHIFT = 5; - - // binary: 100000 - var VLQ_BASE = 1 << VLQ_BASE_SHIFT; - - // binary: 011111 - var VLQ_BASE_MASK = VLQ_BASE - 1; - - // binary: 100000 - var VLQ_CONTINUATION_BIT = VLQ_BASE; - - /** - * Converts from a two-complement value to a value where the sign bit is - * is placed in the least significant bit. For example, as decimals: - * 1 becomes 2 (10 binary), -1 becomes 3 (11 binary) - * 2 becomes 4 (100 binary), -2 becomes 5 (101 binary) - */ - function toVLQSigned(aValue) { - return aValue < 0 - ? ((-aValue) << 1) + 1 - : (aValue << 1) + 0; - } - - /** - * Converts to a two-complement value from a value where the sign bit is - * is placed in the least significant bit. For example, as decimals: - * 2 (10 binary) becomes 1, 3 (11 binary) becomes -1 - * 4 (100 binary) becomes 2, 5 (101 binary) becomes -2 - */ - function fromVLQSigned(aValue) { - var isNegative = (aValue & 1) === 1; - var shifted = aValue >> 1; - return isNegative - ? -shifted - : shifted; - } - - /** - * Returns the base 64 VLQ encoded value. - */ - exports.encode = function base64VLQ_encode(aValue) { - var encoded = ""; - var digit; - - var vlq = toVLQSigned(aValue); - - do { - digit = vlq & VLQ_BASE_MASK; - vlq >>>= VLQ_BASE_SHIFT; - if (vlq > 0) { - // There are still more digits in this value, so we must make sure the - // continuation bit is marked. - digit |= VLQ_CONTINUATION_BIT; - } - encoded += base64.encode(digit); - } while (vlq > 0); - - return encoded; - }; - - /** - * Decodes the next base 64 VLQ value from the given string and returns the - * value and the rest of the string. - */ - exports.decode = function base64VLQ_decode(aStr) { - var i = 0; - var strLen = aStr.length; - var result = 0; - var shift = 0; - var continuation, digit; - - do { - if (i >= strLen) { - throw new Error("Expected more digits in base 64 VLQ value."); - } - digit = base64.decode(aStr.charAt(i++)); - continuation = !!(digit & VLQ_CONTINUATION_BIT); - digit &= VLQ_BASE_MASK; - result = result + (digit << shift); - shift += VLQ_BASE_SHIFT; - } while (continuation); - - return { - value: fromVLQSigned(result), - rest: aStr.slice(i) - }; - }; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/base64', ['require', 'exports', 'module' , ], function(require, exports, module) { - - var charToIntMap = {}; - var intToCharMap = {}; - - 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/' - .split('') - .forEach(function (ch, index) { - charToIntMap[ch] = index; - intToCharMap[index] = ch; - }); - - /** - * Encode an integer in the range of 0 to 63 to a single base 64 digit. - */ - exports.encode = function base64_encode(aNumber) { - if (aNumber in intToCharMap) { - return intToCharMap[aNumber]; - } - throw new TypeError("Must be between 0 and 63: " + aNumber); - }; - - /** - * Decode a single base 64 digit to an integer. - */ - exports.decode = function base64_decode(aChar) { - if (aChar in charToIntMap) { - return charToIntMap[aChar]; - } - throw new TypeError("Not a valid base 64 digit: " + aChar); - }; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/util', ['require', 'exports', 'module' , ], function(require, exports, module) { - - /** - * This is a helper function for getting values from parameter/options - * objects. - * - * @param args The object we are extracting values from - * @param name The name of the property we are getting. - * @param defaultValue An optional value to return if the property is missing - * from the object. If this is not specified and the property is missing, an - * error will be thrown. - */ - function getArg(aArgs, aName, aDefaultValue) { - if (aName in aArgs) { - return aArgs[aName]; - } else if (arguments.length === 3) { - return aDefaultValue; - } else { - throw new Error('"' + aName + '" is a required argument.'); - } - } - exports.getArg = getArg; - - var urlRegexp = /([\w+\-.]+):\/\/((\w+:\w+)@)?([\w.]+)?(:(\d+))?(\S+)?/; - var dataUrlRegexp = /^data:.+\,.+/; - - function urlParse(aUrl) { - var match = aUrl.match(urlRegexp); - if (!match) { - return null; - } - return { - scheme: match[1], - auth: match[3], - host: match[4], - port: match[6], - path: match[7] - }; - } - exports.urlParse = urlParse; - - function urlGenerate(aParsedUrl) { - var url = aParsedUrl.scheme + "://"; - if (aParsedUrl.auth) { - url += aParsedUrl.auth + "@" - } - if (aParsedUrl.host) { - url += aParsedUrl.host; - } - if (aParsedUrl.port) { - url += ":" + aParsedUrl.port - } - if (aParsedUrl.path) { - url += aParsedUrl.path; - } - return url; - } - exports.urlGenerate = urlGenerate; - - function join(aRoot, aPath) { - var url; - - if (aPath.match(urlRegexp) || aPath.match(dataUrlRegexp)) { - return aPath; - } - - if (aPath.charAt(0) === '/' && (url = urlParse(aRoot))) { - url.path = aPath; - return urlGenerate(url); - } - - return aRoot.replace(/\/$/, '') + '/' + aPath; - } - exports.join = join; - - /** - * Because behavior goes wacky when you set `__proto__` on objects, we - * have to prefix all the strings in our set with an arbitrary character. - * - * See https://github.com/mozilla/source-map/pull/31 and - * https://github.com/mozilla/source-map/issues/30 - * - * @param String aStr - */ - function toSetString(aStr) { - return '$' + aStr; - } - exports.toSetString = toSetString; - - function fromSetString(aStr) { - return aStr.substr(1); - } - exports.fromSetString = fromSetString; - - function relative(aRoot, aPath) { - aRoot = aRoot.replace(/\/$/, ''); - - var url = urlParse(aRoot); - if (aPath.charAt(0) == "/" && url && url.path == "/") { - return aPath.slice(1); - } - - return aPath.indexOf(aRoot + '/') === 0 - ? aPath.substr(aRoot.length + 1) - : aPath; - } - exports.relative = relative; - - function strcmp(aStr1, aStr2) { - var s1 = aStr1 || ""; - var s2 = aStr2 || ""; - return (s1 > s2) - (s1 < s2); - } - - /** - * Comparator between two mappings where the original positions are compared. - * - * Optionally pass in `true` as `onlyCompareGenerated` to consider two - * mappings with the same original source/line/column, but different generated - * line and column the same. Useful when searching for a mapping with a - * stubbed out mapping. - */ - function compareByOriginalPositions(mappingA, mappingB, onlyCompareOriginal) { - var cmp; - - cmp = strcmp(mappingA.source, mappingB.source); - if (cmp) { - return cmp; - } - - cmp = mappingA.originalLine - mappingB.originalLine; - if (cmp) { - return cmp; - } - - cmp = mappingA.originalColumn - mappingB.originalColumn; - if (cmp || onlyCompareOriginal) { - return cmp; - } - - cmp = strcmp(mappingA.name, mappingB.name); - if (cmp) { - return cmp; - } - - cmp = mappingA.generatedLine - mappingB.generatedLine; - if (cmp) { - return cmp; - } - - return mappingA.generatedColumn - mappingB.generatedColumn; - }; - exports.compareByOriginalPositions = compareByOriginalPositions; - - /** - * Comparator between two mappings where the generated positions are - * compared. - * - * Optionally pass in `true` as `onlyCompareGenerated` to consider two - * mappings with the same generated line and column, but different - * source/name/original line and column the same. Useful when searching for a - * mapping with a stubbed out mapping. - */ - function compareByGeneratedPositions(mappingA, mappingB, onlyCompareGenerated) { - var cmp; - - cmp = mappingA.generatedLine - mappingB.generatedLine; - if (cmp) { - return cmp; - } - - cmp = mappingA.generatedColumn - mappingB.generatedColumn; - if (cmp || onlyCompareGenerated) { - return cmp; - } - - cmp = strcmp(mappingA.source, mappingB.source); - if (cmp) { - return cmp; - } - - cmp = mappingA.originalLine - mappingB.originalLine; - if (cmp) { - return cmp; - } - - cmp = mappingA.originalColumn - mappingB.originalColumn; - if (cmp) { - return cmp; - } - - return strcmp(mappingA.name, mappingB.name); - }; - exports.compareByGeneratedPositions = compareByGeneratedPositions; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/array-set', ['require', 'exports', 'module' , 'source-map/util'], function(require, exports, module) { - - var util = require('./util'); - - /** - * A data structure which is a combination of an array and a set. Adding a new - * member is O(1), testing for membership is O(1), and finding the index of an - * element is O(1). Removing elements from the set is not supported. Only - * strings are supported for membership. - */ - function ArraySet() { - this._array = []; - this._set = {}; - } - - /** - * Static method for creating ArraySet instances from an existing array. - */ - ArraySet.fromArray = function ArraySet_fromArray(aArray, aAllowDuplicates) { - var set = new ArraySet(); - for (var i = 0, len = aArray.length; i < len; i++) { - set.add(aArray[i], aAllowDuplicates); - } - return set; - }; - - /** - * Add the given string to this set. - * - * @param String aStr - */ - ArraySet.prototype.add = function ArraySet_add(aStr, aAllowDuplicates) { - var isDuplicate = this.has(aStr); - var idx = this._array.length; - if (!isDuplicate || aAllowDuplicates) { - this._array.push(aStr); - } - if (!isDuplicate) { - this._set[util.toSetString(aStr)] = idx; - } - }; - - /** - * Is the given string a member of this set? - * - * @param String aStr - */ - ArraySet.prototype.has = function ArraySet_has(aStr) { - return Object.prototype.hasOwnProperty.call(this._set, - util.toSetString(aStr)); - }; - - /** - * What is the index of the given string in the array? - * - * @param String aStr - */ - ArraySet.prototype.indexOf = function ArraySet_indexOf(aStr) { - if (this.has(aStr)) { - return this._set[util.toSetString(aStr)]; - } - throw new Error('"' + aStr + '" is not in the set.'); - }; - - /** - * What is the element at the given index? - * - * @param Number aIdx - */ - ArraySet.prototype.at = function ArraySet_at(aIdx) { - if (aIdx >= 0 && aIdx < this._array.length) { - return this._array[aIdx]; - } - throw new Error('No element indexed by ' + aIdx); - }; - - /** - * Returns the array representation of this set (which has the proper indices - * indicated by indexOf). Note that this is a copy of the internal array used - * for storing the members so that no one can mess with internal state. - */ - ArraySet.prototype.toArray = function ArraySet_toArray() { - return this._array.slice(); - }; - - exports.ArraySet = ArraySet; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/source-map-consumer', ['require', 'exports', 'module' , 'source-map/util', 'source-map/binary-search', 'source-map/array-set', 'source-map/base64-vlq'], function(require, exports, module) { - - var util = require('./util'); - var binarySearch = require('./binary-search'); - var ArraySet = require('./array-set').ArraySet; - var base64VLQ = require('./base64-vlq'); - - /** - * A SourceMapConsumer instance represents a parsed source map which we can - * query for information about the original file positions by giving it a file - * position in the generated source. - * - * The only parameter is the raw source map (either as a JSON string, or - * already parsed to an object). According to the spec, source maps have the - * following attributes: - * - * - version: Which version of the source map spec this map is following. - * - sources: An array of URLs to the original source files. - * - names: An array of identifiers which can be referrenced by individual mappings. - * - sourceRoot: Optional. The URL root from which all sources are relative. - * - sourcesContent: Optional. An array of contents of the original source files. - * - mappings: A string of base64 VLQs which contain the actual mappings. - * - file: The generated file this source map is associated with. - * - * Here is an example source map, taken from the source map spec[0]: - * - * { - * version : 3, - * file: "out.js", - * sourceRoot : "", - * sources: ["foo.js", "bar.js"], - * names: ["src", "maps", "are", "fun"], - * mappings: "AA,AB;;ABCDE;" - * } - * - * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit?pli=1# - */ - function SourceMapConsumer(aSourceMap) { - var sourceMap = aSourceMap; - if (typeof aSourceMap === 'string') { - sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, '')); - } - - var version = util.getArg(sourceMap, 'version'); - var sources = util.getArg(sourceMap, 'sources'); - // Sass 3.3 leaves out the 'names' array, so we deviate from the spec (which - // requires the array) to play nice here. - var names = util.getArg(sourceMap, 'names', []); - var sourceRoot = util.getArg(sourceMap, 'sourceRoot', null); - var sourcesContent = util.getArg(sourceMap, 'sourcesContent', null); - var mappings = util.getArg(sourceMap, 'mappings'); - var file = util.getArg(sourceMap, 'file', null); - - // Once again, Sass deviates from the spec and supplies the version as a - // string rather than a number, so we use loose equality checking here. - if (version != this._version) { - throw new Error('Unsupported version: ' + version); - } - - // Pass `true` below to allow duplicate names and sources. While source maps - // are intended to be compressed and deduplicated, the TypeScript compiler - // sometimes generates source maps with duplicates in them. See Github issue - // #72 and bugzil.la/889492. - this._names = ArraySet.fromArray(names, true); - this._sources = ArraySet.fromArray(sources, true); - - this.sourceRoot = sourceRoot; - this.sourcesContent = sourcesContent; - this._mappings = mappings; - this.file = file; - } - - /** - * Create a SourceMapConsumer from a SourceMapGenerator. - * - * @param SourceMapGenerator aSourceMap - * The source map that will be consumed. - * @returns SourceMapConsumer - */ - SourceMapConsumer.fromSourceMap = - function SourceMapConsumer_fromSourceMap(aSourceMap) { - var smc = Object.create(SourceMapConsumer.prototype); - - smc._names = ArraySet.fromArray(aSourceMap._names.toArray(), true); - smc._sources = ArraySet.fromArray(aSourceMap._sources.toArray(), true); - smc.sourceRoot = aSourceMap._sourceRoot; - smc.sourcesContent = aSourceMap._generateSourcesContent(smc._sources.toArray(), - smc.sourceRoot); - smc.file = aSourceMap._file; - - smc.__generatedMappings = aSourceMap._mappings.slice() - .sort(util.compareByGeneratedPositions); - smc.__originalMappings = aSourceMap._mappings.slice() - .sort(util.compareByOriginalPositions); - - return smc; - }; - - /** - * The version of the source mapping spec that we are consuming. - */ - SourceMapConsumer.prototype._version = 3; - - /** - * The list of original sources. - */ - Object.defineProperty(SourceMapConsumer.prototype, 'sources', { - get: function () { - return this._sources.toArray().map(function (s) { - return this.sourceRoot ? util.join(this.sourceRoot, s) : s; - }, this); - } - }); - - // `__generatedMappings` and `__originalMappings` are arrays that hold the - // parsed mapping coordinates from the source map's "mappings" attribute. They - // are lazily instantiated, accessed via the `_generatedMappings` and - // `_originalMappings` getters respectively, and we only parse the mappings - // and create these arrays once queried for a source location. We jump through - // these hoops because there can be many thousands of mappings, and parsing - // them is expensive, so we only want to do it if we must. - // - // Each object in the arrays is of the form: - // - // { - // generatedLine: The line number in the generated code, - // generatedColumn: The column number in the generated code, - // source: The path to the original source file that generated this - // chunk of code, - // originalLine: The line number in the original source that - // corresponds to this chunk of generated code, - // originalColumn: The column number in the original source that - // corresponds to this chunk of generated code, - // name: The name of the original symbol which generated this chunk of - // code. - // } - // - // All properties except for `generatedLine` and `generatedColumn` can be - // `null`. - // - // `_generatedMappings` is ordered by the generated positions. - // - // `_originalMappings` is ordered by the original positions. - - SourceMapConsumer.prototype.__generatedMappings = null; - Object.defineProperty(SourceMapConsumer.prototype, '_generatedMappings', { - get: function () { - if (!this.__generatedMappings) { - this.__generatedMappings = []; - this.__originalMappings = []; - this._parseMappings(this._mappings, this.sourceRoot); - } - - return this.__generatedMappings; - } - }); - - SourceMapConsumer.prototype.__originalMappings = null; - Object.defineProperty(SourceMapConsumer.prototype, '_originalMappings', { - get: function () { - if (!this.__originalMappings) { - this.__generatedMappings = []; - this.__originalMappings = []; - this._parseMappings(this._mappings, this.sourceRoot); - } - - return this.__originalMappings; - } - }); - - /** - * Parse the mappings in a string in to a data structure which we can easily - * query (the ordered arrays in the `this.__generatedMappings` and - * `this.__originalMappings` properties). - */ - SourceMapConsumer.prototype._parseMappings = - function SourceMapConsumer_parseMappings(aStr, aSourceRoot) { - var generatedLine = 1; - var previousGeneratedColumn = 0; - var previousOriginalLine = 0; - var previousOriginalColumn = 0; - var previousSource = 0; - var previousName = 0; - var mappingSeparator = /^[,;]/; - var str = aStr; - var mapping; - var temp; - - while (str.length > 0) { - if (str.charAt(0) === ';') { - generatedLine++; - str = str.slice(1); - previousGeneratedColumn = 0; - } - else if (str.charAt(0) === ',') { - str = str.slice(1); - } - else { - mapping = {}; - mapping.generatedLine = generatedLine; - - // Generated column. - temp = base64VLQ.decode(str); - mapping.generatedColumn = previousGeneratedColumn + temp.value; - previousGeneratedColumn = mapping.generatedColumn; - str = temp.rest; - - if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) { - // Original source. - temp = base64VLQ.decode(str); - mapping.source = this._sources.at(previousSource + temp.value); - previousSource += temp.value; - str = temp.rest; - if (str.length === 0 || mappingSeparator.test(str.charAt(0))) { - throw new Error('Found a source, but no line and column'); - } - - // Original line. - temp = base64VLQ.decode(str); - mapping.originalLine = previousOriginalLine + temp.value; - previousOriginalLine = mapping.originalLine; - // Lines are stored 0-based - mapping.originalLine += 1; - str = temp.rest; - if (str.length === 0 || mappingSeparator.test(str.charAt(0))) { - throw new Error('Found a source and line, but no column'); - } - - // Original column. - temp = base64VLQ.decode(str); - mapping.originalColumn = previousOriginalColumn + temp.value; - previousOriginalColumn = mapping.originalColumn; - str = temp.rest; - - if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) { - // Original name. - temp = base64VLQ.decode(str); - mapping.name = this._names.at(previousName + temp.value); - previousName += temp.value; - str = temp.rest; - } - } - - this.__generatedMappings.push(mapping); - if (typeof mapping.originalLine === 'number') { - this.__originalMappings.push(mapping); - } - } - } - - this.__originalMappings.sort(util.compareByOriginalPositions); - }; - - /** - * Find the mapping that best matches the hypothetical "needle" mapping that - * we are searching for in the given "haystack" of mappings. - */ - SourceMapConsumer.prototype._findMapping = - function SourceMapConsumer_findMapping(aNeedle, aMappings, aLineName, - aColumnName, aComparator) { - // To return the position we are searching for, we must first find the - // mapping for the given position and then return the opposite position it - // points to. Because the mappings are sorted, we can use binary search to - // find the best mapping. - - if (aNeedle[aLineName] <= 0) { - throw new TypeError('Line must be greater than or equal to 1, got ' - + aNeedle[aLineName]); - } - if (aNeedle[aColumnName] < 0) { - throw new TypeError('Column must be greater than or equal to 0, got ' - + aNeedle[aColumnName]); - } - - return binarySearch.search(aNeedle, aMappings, aComparator); - }; - - /** - * Returns the original source, line, and column information for the generated - * source's line and column positions provided. The only argument is an object - * with the following properties: - * - * - line: The line number in the generated source. - * - column: The column number in the generated source. - * - * and an object is returned with the following properties: - * - * - source: The original source file, or null. - * - line: The line number in the original source, or null. - * - column: The column number in the original source, or null. - * - name: The original identifier, or null. - */ - SourceMapConsumer.prototype.originalPositionFor = - function SourceMapConsumer_originalPositionFor(aArgs) { - var needle = { - generatedLine: util.getArg(aArgs, 'line'), - generatedColumn: util.getArg(aArgs, 'column') - }; - - var mapping = this._findMapping(needle, - this._generatedMappings, - "generatedLine", - "generatedColumn", - util.compareByGeneratedPositions); - - if (mapping) { - var source = util.getArg(mapping, 'source', null); - if (source && this.sourceRoot) { - source = util.join(this.sourceRoot, source); - } - return { - source: source, - line: util.getArg(mapping, 'originalLine', null), - column: util.getArg(mapping, 'originalColumn', null), - name: util.getArg(mapping, 'name', null) - }; - } - - return { - source: null, - line: null, - column: null, - name: null - }; - }; - - /** - * Returns the original source content. The only argument is the url of the - * original source file. Returns null if no original source content is - * availible. - */ - SourceMapConsumer.prototype.sourceContentFor = - function SourceMapConsumer_sourceContentFor(aSource) { - if (!this.sourcesContent) { - return null; - } - - if (this.sourceRoot) { - aSource = util.relative(this.sourceRoot, aSource); - } - - if (this._sources.has(aSource)) { - return this.sourcesContent[this._sources.indexOf(aSource)]; - } - - var url; - if (this.sourceRoot - && (url = util.urlParse(this.sourceRoot))) { - // XXX: file:// URIs and absolute paths lead to unexpected behavior for - // many users. We can help them out when they expect file:// URIs to - // behave like it would if they were running a local HTTP server. See - // https://bugzilla.mozilla.org/show_bug.cgi?id=885597. - var fileUriAbsPath = aSource.replace(/^file:\/\//, ""); - if (url.scheme == "file" - && this._sources.has(fileUriAbsPath)) { - return this.sourcesContent[this._sources.indexOf(fileUriAbsPath)] - } - - if ((!url.path || url.path == "/") - && this._sources.has("/" + aSource)) { - return this.sourcesContent[this._sources.indexOf("/" + aSource)]; - } - } - - throw new Error('"' + aSource + '" is not in the SourceMap.'); - }; - - /** - * Returns the generated line and column information for the original source, - * line, and column positions provided. The only argument is an object with - * the following properties: - * - * - source: The filename of the original source. - * - line: The line number in the original source. - * - column: The column number in the original source. - * - * and an object is returned with the following properties: - * - * - line: The line number in the generated source, or null. - * - column: The column number in the generated source, or null. - */ - SourceMapConsumer.prototype.generatedPositionFor = - function SourceMapConsumer_generatedPositionFor(aArgs) { - var needle = { - source: util.getArg(aArgs, 'source'), - originalLine: util.getArg(aArgs, 'line'), - originalColumn: util.getArg(aArgs, 'column') - }; - - if (this.sourceRoot) { - needle.source = util.relative(this.sourceRoot, needle.source); - } - - var mapping = this._findMapping(needle, - this._originalMappings, - "originalLine", - "originalColumn", - util.compareByOriginalPositions); - - if (mapping) { - return { - line: util.getArg(mapping, 'generatedLine', null), - column: util.getArg(mapping, 'generatedColumn', null) - }; - } - - return { - line: null, - column: null - }; - }; - - SourceMapConsumer.GENERATED_ORDER = 1; - SourceMapConsumer.ORIGINAL_ORDER = 2; - - /** - * Iterate over each mapping between an original source/line/column and a - * generated line/column in this source map. - * - * @param Function aCallback - * The function that is called with each mapping. - * @param Object aContext - * Optional. If specified, this object will be the value of `this` every - * time that `aCallback` is called. - * @param aOrder - * Either `SourceMapConsumer.GENERATED_ORDER` or - * `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to - * iterate over the mappings sorted by the generated file's line/column - * order or the original's source/line/column order, respectively. Defaults to - * `SourceMapConsumer.GENERATED_ORDER`. - */ - SourceMapConsumer.prototype.eachMapping = - function SourceMapConsumer_eachMapping(aCallback, aContext, aOrder) { - var context = aContext || null; - var order = aOrder || SourceMapConsumer.GENERATED_ORDER; - - var mappings; - switch (order) { - case SourceMapConsumer.GENERATED_ORDER: - mappings = this._generatedMappings; - break; - case SourceMapConsumer.ORIGINAL_ORDER: - mappings = this._originalMappings; - break; - default: - throw new Error("Unknown order of iteration."); - } - - var sourceRoot = this.sourceRoot; - mappings.map(function (mapping) { - var source = mapping.source; - if (source && sourceRoot) { - source = util.join(sourceRoot, source); - } - return { - source: source, - generatedLine: mapping.generatedLine, - generatedColumn: mapping.generatedColumn, - originalLine: mapping.originalLine, - originalColumn: mapping.originalColumn, - name: mapping.name - }; - }).forEach(aCallback, context); - }; - - exports.SourceMapConsumer = SourceMapConsumer; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/binary-search', ['require', 'exports', 'module' , ], function(require, exports, module) { - - /** - * Recursive implementation of binary search. - * - * @param aLow Indices here and lower do not contain the needle. - * @param aHigh Indices here and higher do not contain the needle. - * @param aNeedle The element being searched for. - * @param aHaystack The non-empty array being searched. - * @param aCompare Function which takes two elements and returns -1, 0, or 1. - */ - function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare) { - // This function terminates when one of the following is true: - // - // 1. We find the exact element we are looking for. - // - // 2. We did not find the exact element, but we can return the next - // closest element that is less than that element. - // - // 3. We did not find the exact element, and there is no next-closest - // element which is less than the one we are searching for, so we - // return null. - var mid = Math.floor((aHigh - aLow) / 2) + aLow; - var cmp = aCompare(aNeedle, aHaystack[mid], true); - if (cmp === 0) { - // Found the element we are looking for. - return aHaystack[mid]; - } - else if (cmp > 0) { - // aHaystack[mid] is greater than our needle. - if (aHigh - mid > 1) { - // The element is in the upper half. - return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare); - } - // We did not find an exact match, return the next closest one - // (termination case 2). - return aHaystack[mid]; - } - else { - // aHaystack[mid] is less than our needle. - if (mid - aLow > 1) { - // The element is in the lower half. - return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare); - } - // The exact needle element was not found in this haystack. Determine if - // we are in termination case (2) or (3) and return the appropriate thing. - return aLow < 0 - ? null - : aHaystack[aLow]; - } - } - - /** - * This is an implementation of binary search which will always try and return - * the next lowest value checked if there is no exact hit. This is because - * mappings between original and generated line/col pairs are single points, - * and there is an implicit region between each of them, so a miss just means - * that you aren't on the very start of a region. - * - * @param aNeedle The element you are looking for. - * @param aHaystack The array that is being searched. - * @param aCompare A function which takes the needle and an element in the - * array and returns -1, 0, or 1 depending on whether the needle is less - * than, equal to, or greater than the element, respectively. - */ - exports.search = function search(aNeedle, aHaystack, aCompare) { - return aHaystack.length > 0 - ? recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack, aCompare) - : null; - }; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/source-node', ['require', 'exports', 'module' , 'source-map/source-map-generator', 'source-map/util'], function(require, exports, module) { - - var SourceMapGenerator = require('./source-map-generator').SourceMapGenerator; - var util = require('./util'); - - /** - * SourceNodes provide a way to abstract over interpolating/concatenating - * snippets of generated JavaScript source code while maintaining the line and - * column information associated with the original source code. - * - * @param aLine The original line number. - * @param aColumn The original column number. - * @param aSource The original source's filename. - * @param aChunks Optional. An array of strings which are snippets of - * generated JS, or other SourceNodes. - * @param aName The original identifier. - */ - function SourceNode(aLine, aColumn, aSource, aChunks, aName) { - this.children = []; - this.sourceContents = {}; - this.line = aLine === undefined ? null : aLine; - this.column = aColumn === undefined ? null : aColumn; - this.source = aSource === undefined ? null : aSource; - this.name = aName === undefined ? null : aName; - if (aChunks != null) this.add(aChunks); - } - - /** - * Creates a SourceNode from generated code and a SourceMapConsumer. - * - * @param aGeneratedCode The generated code - * @param aSourceMapConsumer The SourceMap for the generated code - */ - SourceNode.fromStringWithSourceMap = - function SourceNode_fromStringWithSourceMap(aGeneratedCode, aSourceMapConsumer) { - // The SourceNode we want to fill with the generated code - // and the SourceMap - var node = new SourceNode(); - - // The generated code - // Processed fragments are removed from this array. - var remainingLines = aGeneratedCode.split('\n'); - - // We need to remember the position of "remainingLines" - var lastGeneratedLine = 1, lastGeneratedColumn = 0; - - // The generate SourceNodes we need a code range. - // To extract it current and last mapping is used. - // Here we store the last mapping. - var lastMapping = null; - - aSourceMapConsumer.eachMapping(function (mapping) { - if (lastMapping === null) { - // We add the generated code until the first mapping - // to the SourceNode without any mapping. - // Each line is added as separate string. - while (lastGeneratedLine < mapping.generatedLine) { - node.add(remainingLines.shift() + "\n"); - lastGeneratedLine++; - } - if (lastGeneratedColumn < mapping.generatedColumn) { - var nextLine = remainingLines[0]; - node.add(nextLine.substr(0, mapping.generatedColumn)); - remainingLines[0] = nextLine.substr(mapping.generatedColumn); - lastGeneratedColumn = mapping.generatedColumn; - } - } else { - // We add the code from "lastMapping" to "mapping": - // First check if there is a new line in between. - if (lastGeneratedLine < mapping.generatedLine) { - var code = ""; - // Associate full lines with "lastMapping" - do { - code += remainingLines.shift() + "\n"; - lastGeneratedLine++; - lastGeneratedColumn = 0; - } while (lastGeneratedLine < mapping.generatedLine); - // When we reached the correct line, we add code until we - // reach the correct column too. - if (lastGeneratedColumn < mapping.generatedColumn) { - var nextLine = remainingLines[0]; - code += nextLine.substr(0, mapping.generatedColumn); - remainingLines[0] = nextLine.substr(mapping.generatedColumn); - lastGeneratedColumn = mapping.generatedColumn; - } - // Create the SourceNode. - addMappingWithCode(lastMapping, code); - } else { - // There is no new line in between. - // Associate the code between "lastGeneratedColumn" and - // "mapping.generatedColumn" with "lastMapping" - var nextLine = remainingLines[0]; - var code = nextLine.substr(0, mapping.generatedColumn - - lastGeneratedColumn); - remainingLines[0] = nextLine.substr(mapping.generatedColumn - - lastGeneratedColumn); - lastGeneratedColumn = mapping.generatedColumn; - addMappingWithCode(lastMapping, code); - } - } - lastMapping = mapping; - }, this); - // We have processed all mappings. - // Associate the remaining code in the current line with "lastMapping" - // and add the remaining lines without any mapping - addMappingWithCode(lastMapping, remainingLines.join("\n")); - - // Copy sourcesContent into SourceNode - aSourceMapConsumer.sources.forEach(function (sourceFile) { - var content = aSourceMapConsumer.sourceContentFor(sourceFile); - if (content) { - node.setSourceContent(sourceFile, content); - } - }); - - return node; - - function addMappingWithCode(mapping, code) { - if (mapping === null || mapping.source === undefined) { - node.add(code); - } else { - node.add(new SourceNode(mapping.originalLine, - mapping.originalColumn, - mapping.source, - code, - mapping.name)); - } - } - }; - - /** - * Add a chunk of generated JS to this source node. - * - * @param aChunk A string snippet of generated JS code, another instance of - * SourceNode, or an array where each member is one of those things. - */ - SourceNode.prototype.add = function SourceNode_add(aChunk) { - if (Array.isArray(aChunk)) { - aChunk.forEach(function (chunk) { - this.add(chunk); - }, this); - } - else if (aChunk instanceof SourceNode || typeof aChunk === "string") { - if (aChunk) { - this.children.push(aChunk); - } - } - else { - throw new TypeError( - "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk - ); - } - return this; - }; - - /** - * Add a chunk of generated JS to the beginning of this source node. - * - * @param aChunk A string snippet of generated JS code, another instance of - * SourceNode, or an array where each member is one of those things. - */ - SourceNode.prototype.prepend = function SourceNode_prepend(aChunk) { - if (Array.isArray(aChunk)) { - for (var i = aChunk.length-1; i >= 0; i--) { - this.prepend(aChunk[i]); - } - } - else if (aChunk instanceof SourceNode || typeof aChunk === "string") { - this.children.unshift(aChunk); - } - else { - throw new TypeError( - "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk - ); - } - return this; - }; - - /** - * Walk over the tree of JS snippets in this node and its children. The - * walking function is called once for each snippet of JS and is passed that - * snippet and the its original associated source's line/column location. - * - * @param aFn The traversal function. - */ - SourceNode.prototype.walk = function SourceNode_walk(aFn) { - var chunk; - for (var i = 0, len = this.children.length; i < len; i++) { - chunk = this.children[i]; - if (chunk instanceof SourceNode) { - chunk.walk(aFn); - } - else { - if (chunk !== '') { - aFn(chunk, { source: this.source, - line: this.line, - column: this.column, - name: this.name }); - } - } - } - }; - - /** - * Like `String.prototype.join` except for SourceNodes. Inserts `aStr` between - * each of `this.children`. - * - * @param aSep The separator. - */ - SourceNode.prototype.join = function SourceNode_join(aSep) { - var newChildren; - var i; - var len = this.children.length; - if (len > 0) { - newChildren = []; - for (i = 0; i < len-1; i++) { - newChildren.push(this.children[i]); - newChildren.push(aSep); - } - newChildren.push(this.children[i]); - this.children = newChildren; - } - return this; - }; - - /** - * Call String.prototype.replace on the very right-most source snippet. Useful - * for trimming whitespace from the end of a source node, etc. - * - * @param aPattern The pattern to replace. - * @param aReplacement The thing to replace the pattern with. - */ - SourceNode.prototype.replaceRight = function SourceNode_replaceRight(aPattern, aReplacement) { - var lastChild = this.children[this.children.length - 1]; - if (lastChild instanceof SourceNode) { - lastChild.replaceRight(aPattern, aReplacement); - } - else if (typeof lastChild === 'string') { - this.children[this.children.length - 1] = lastChild.replace(aPattern, aReplacement); - } - else { - this.children.push(''.replace(aPattern, aReplacement)); - } - return this; - }; - - /** - * Set the source content for a source file. This will be added to the SourceMapGenerator - * in the sourcesContent field. - * - * @param aSourceFile The filename of the source file - * @param aSourceContent The content of the source file - */ - SourceNode.prototype.setSourceContent = - function SourceNode_setSourceContent(aSourceFile, aSourceContent) { - this.sourceContents[util.toSetString(aSourceFile)] = aSourceContent; - }; - - /** - * Walk over the tree of SourceNodes. The walking function is called for each - * source file content and is passed the filename and source content. - * - * @param aFn The traversal function. - */ - SourceNode.prototype.walkSourceContents = - function SourceNode_walkSourceContents(aFn) { - for (var i = 0, len = this.children.length; i < len; i++) { - if (this.children[i] instanceof SourceNode) { - this.children[i].walkSourceContents(aFn); - } - } - - var sources = Object.keys(this.sourceContents); - for (var i = 0, len = sources.length; i < len; i++) { - aFn(util.fromSetString(sources[i]), this.sourceContents[sources[i]]); - } - }; - - /** - * Return the string representation of this source node. Walks over the tree - * and concatenates all the various snippets together to one string. - */ - SourceNode.prototype.toString = function SourceNode_toString() { - var str = ""; - this.walk(function (chunk) { - str += chunk; - }); - return str; - }; - - /** - * Returns the string representation of this source node along with a source - * map. - */ - SourceNode.prototype.toStringWithSourceMap = function SourceNode_toStringWithSourceMap(aArgs) { - var generated = { - code: "", - line: 1, - column: 0 - }; - var map = new SourceMapGenerator(aArgs); - var sourceMappingActive = false; - var lastOriginalSource = null; - var lastOriginalLine = null; - var lastOriginalColumn = null; - var lastOriginalName = null; - this.walk(function (chunk, original) { - generated.code += chunk; - if (original.source !== null - && original.line !== null - && original.column !== null) { - if(lastOriginalSource !== original.source - || lastOriginalLine !== original.line - || lastOriginalColumn !== original.column - || lastOriginalName !== original.name) { - map.addMapping({ - source: original.source, - original: { - line: original.line, - column: original.column - }, - generated: { - line: generated.line, - column: generated.column - }, - name: original.name - }); - } - lastOriginalSource = original.source; - lastOriginalLine = original.line; - lastOriginalColumn = original.column; - lastOriginalName = original.name; - sourceMappingActive = true; - } else if (sourceMappingActive) { - map.addMapping({ - generated: { - line: generated.line, - column: generated.column - } - }); - lastOriginalSource = null; - sourceMappingActive = false; - } - chunk.split('').forEach(function (ch) { - if (ch === '\n') { - generated.line++; - generated.column = 0; - } else { - generated.column++; - } - }); - }); - this.walkSourceContents(function (sourceFile, sourceContent) { - map.setSourceContent(sourceFile, sourceContent); - }); - - return { code: generated.code, map: map }; - }; - - exports.SourceNode = SourceNode; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/////////////////////////////////////////////////////////////////////////////// - -this.sourceMap = { - SourceMapConsumer: require('source-map/source-map-consumer').SourceMapConsumer, - SourceMapGenerator: require('source-map/source-map-generator').SourceMapGenerator, - SourceNode: require('source-map/source-node').SourceNode -}; - -// footer to wrap "source-map" module - return this.sourceMap; - }(); -})(); \ No newline at end of file diff --git a/awx/ui/static/lib/less/dist/less-rhino-1.7.0.js b/awx/ui/static/lib/less/dist/less-rhino-1.7.0.js deleted file mode 100644 index e95026f701..0000000000 --- a/awx/ui/static/lib/less/dist/less-rhino-1.7.0.js +++ /dev/null @@ -1,9301 +0,0 @@ -/* LESS.js v1.7.0 RHINO | Copyright (c) 2009-2014, Alexis Sellier */ - -// -// Stub out `require` in rhino -// -function require(arg) { - var split = arg.split('/'); - var resultModule = split.length == 1 ? less.modules[split[0]] : less[split[1]]; - if (!resultModule) { - throw { message: "Cannot find module '" + arg + "'"}; - } - return resultModule; -} - - -if (typeof(window) === 'undefined') { less = {} } -else { less = window.less = {} } -tree = less.tree = {}; -less.mode = 'rhino'; - -(function() { - - console = function() { - var stdout = java.lang.System.out; - var stderr = java.lang.System.err; - - function doLog(out, type) { - return function() { - var args = java.lang.reflect.Array.newInstance(java.lang.Object, arguments.length - 1); - var format = arguments[0]; - var conversionIndex = 0; - // need to look for %d (integer) conversions because in Javascript all numbers are doubles - for (var i = 1; i < arguments.length; i++) { - var arg = arguments[i]; - if (conversionIndex != -1) { - conversionIndex = format.indexOf('%', conversionIndex); - } - if (conversionIndex >= 0 && conversionIndex < format.length) { - var conversion = format.charAt(conversionIndex + 1); - if (conversion === 'd' && typeof arg === 'number') { - arg = new java.lang.Integer(new java.lang.Double(arg).intValue()); - } - conversionIndex++; - } - args[i-1] = arg; - } - try { - out.println(type + java.lang.String.format(format, args)); - } catch(ex) { - stderr.println(ex); - } - } - } - return { - log: doLog(stdout, ''), - info: doLog(stdout, 'INFO: '), - error: doLog(stderr, 'ERROR: '), - warn: doLog(stderr, 'WARN: ') - }; - }(); - - less.modules = {}; - - less.modules.path = { - join: function() { - var parts = []; - for (i in arguments) { - parts = parts.concat(arguments[i].split(/\/|\\/)); - } - var result = []; - for (i in parts) { - var part = parts[i]; - if (part === '..' && result.length > 0) { - result.pop(); - } else if (part === '' && result.length > 0) { - // skip - } else if (part !== '.') { - if (part.slice(-1)==='\\' || part.slice(-1)==='/') { - part = part.slice(0, -1); - } - result.push(part); - } - } - return result.join('/'); - }, - dirname: function(p) { - var path = p.split('/'); - path.pop(); - return path.join('/'); - }, - basename: function(p, ext) { - var base = p.split('/').pop(); - if (ext) { - var index = base.lastIndexOf(ext); - if (base.length === index + ext.length) { - base = base.substr(0, index); - } - } - return base; - }, - extname: function(p) { - var index = p.lastIndexOf('.'); - return index > 0 ? p.substring(index) : ''; - } - }; - - less.modules.fs = { - readFileSync: function(name) { - // read a file into a byte array - var file = new java.io.File(name); - var stream = new java.io.FileInputStream(file); - var buffer = []; - var c; - while ((c = stream.read()) != -1) { - buffer.push(c); - } - stream.close(); - return { - length: buffer.length, - toString: function(enc) { - if (enc === 'base64') { - return encodeBase64Bytes(buffer); - } else if (enc) { - return java.lang.String["(byte[],java.lang.String)"](buffer, enc); - } else { - return java.lang.String["(byte[])"](buffer); - } - } - }; - } - }; - - less.encoder = { - encodeBase64: function(str) { - return encodeBase64String(str); - } - }; - - // --------------------------------------------------------------------------------------------- - // private helper functions - // --------------------------------------------------------------------------------------------- - - function encodeBase64Bytes(bytes) { - // requires at least a JRE Platform 6 (or JAXB 1.0 on the classpath) - return javax.xml.bind.DatatypeConverter.printBase64Binary(bytes) - } - function encodeBase64String(str) { - return encodeBase64Bytes(new java.lang.String(str).getBytes()); - } - -})(); - -var less, tree; - -// Node.js does not have a header file added which defines less -if (less === undefined) { - less = exports; - tree = require('./tree'); - less.mode = 'node'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `currentPos` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - saveStack = [], // holds state for backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // current chunk - currentPos, // index of current chunk, in `input` - parser, - parsers, - rootFilename = env && env.filename; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed around by reference. - if (!(env instanceof tree.parseEnv)) { - env = new tree.parseEnv(env); - } - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - contentsIgnoredChars: env.contentsIgnoredChars, // lines inserted, not in the original less - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, currentFileInfo, importOptions, callback) { - var parserImports = this; - this.queue.push(path); - - var fileParsedFunc = function (e, root, fullPath) { - parserImports.queue.splice(parserImports.queue.indexOf(path), 1); // Remove the path from the queue - - var importedPreviously = fullPath === rootFilename; - - parserImports.files[fullPath] = root; // Store the root - - if (e && !parserImports.error) { parserImports.error = e; } - - callback(e, root, importedPreviously, fullPath); - }; - - if (less.Parser.importer) { - less.Parser.importer(path, currentFileInfo, fileParsedFunc, env); - } else { - less.Parser.fileLoader(path, currentFileInfo, function(e, contents, fullPath, newFileInfo) { - if (e) {fileParsedFunc(e); return;} - - var newEnv = new tree.parseEnv(env); - - newEnv.currentFileInfo = newFileInfo; - newEnv.processImports = false; - newEnv.contents[fullPath] = contents; - - if (currentFileInfo.reference || importOptions.reference) { - newFileInfo.reference = true; - } - - if (importOptions.inline) { - fileParsedFunc(null, contents, fullPath); - } else { - new(less.Parser)(newEnv).parse(contents, function (e, root) { - fileParsedFunc(e, root, fullPath); - }); - } - }, env); - } - } - }; - - function save() { currentPos = i; saveStack.push( { current: current, i: i, j: j }); } - function restore() { var state = saveStack.pop(); current = state.current; currentPos = i = state.i; j = state.j; } - function forget() { saveStack.pop(); } - - function sync() { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - } - function isWhitespace(str, pos) { - var code = str.charCodeAt(pos | 0); - return (code <= 32) && (code === 32 || code === 10 || code === 9); - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var tokType = typeof tok, - match, length; - - // Either match a single character in the input, - // or match a regexp in the current chunk (`current`). - // - if (tokType === "string") { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - // regexp - sync (); - if (! (match = tok.exec(current))) { - return null; - } - - length = match[0].length; - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - - // Specialization of $(tok) - function $re(tok) { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - var m = tok.exec(current); - if (!m) { - return null; - } - - skipWhitespace(m[0].length); - if(typeof m === "string") { - return m; - } - - return m.length === 1 ? m[0] : m; - } - - var _$re = $re; - - // Specialization of $(tok) - function $char(tok) { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - curr = i - currentPos, - endIndex = i + current.length - curr, - mem = (i += length), - inp = input, - c; - - for (; i < endIndex; i++) { - c = inp.charCodeAt(i); - if (c > 32) { - break; - } - - if ((c !== 32) && (c !== 10) && (c !== 9) && (c !== 13)) { - break; - } - } - - current = current.slice(length + i - mem + curr); - currentPos = i; - - if (!current.length && (j < chunks.length - 1)) { - current = chunks[++j]; - skipWhitespace(0); // skip space at the beginning of a chunk - return true; // things changed - } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - // some older browsers return typeof 'function' for RegExp - var result = (Object.prototype.toString.call(arg) === '[object Function]') ? arg.call(parsers) : $(arg); - if (result) { - return result; - } - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } - - // Specialization of expect() - function expectChar(arg, msg) { - if (input.charAt(i) === arg) { - skipWhitespace(1); - return arg; - } - error(msg || "expected '" + arg + "' got '" + input.charAt(i) + "'"); - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - return tok.test(current); - } - } - - // Specialization of peek() - function peekChar(tok) { - return input.charAt(i) === tok; - } - - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, inputStream) { - var n = index + 1, - line = null, - column = -1; - - while (--n >= 0 && inputStream.charAt(n) !== '\n') { - column++; - } - - if (typeof index === 'number') { - line = (inputStream.slice(0, index).match(/\n/g) || "").length; - } - - return { - line: line, - column: column - }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - callLine = e.call && getLocation(e.call, input).line, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = callLine + 1; - this.callExtract = lines[callLine]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // @param str A string containing 'less' markup - // @param callback call `callback` when done. - // @param [additionalData] An optional map which can contains vars - a map (key, value) of variables to apply - // - parse: function (str, callback, additionalData) { - var root, line, lines, error = null, globalVars, modifyVars, preText = ""; - - i = j = currentPos = furthest = 0; - - globalVars = (additionalData && additionalData.globalVars) ? less.Parser.serializeVars(additionalData.globalVars) + '\n' : ''; - modifyVars = (additionalData && additionalData.modifyVars) ? '\n' + less.Parser.serializeVars(additionalData.modifyVars) : ''; - - if (globalVars || (additionalData && additionalData.banner)) { - preText = ((additionalData && additionalData.banner) ? additionalData.banner : "") + globalVars; - parser.imports.contentsIgnoredChars[env.currentFileInfo.filename] = preText.length; - } - - str = str.replace(/\r\n/g, '\n'); - // Remove potential UTF Byte Order Mark - input = str = preText + str.replace(/^\uFEFF/, '') + modifyVars; - parser.imports.contents[env.currentFileInfo.filename] = str; - - // Split the input into chunks. - chunks = (function (input) { - var len = input.length, level = 0, parenLevel = 0, - lastOpening, lastOpeningParen, lastMultiComment, lastMultiCommentEndBrace, - chunks = [], emitFrom = 0, - parserCurrentIndex, currentChunkStartIndex, cc, cc2, matched; - - function fail(msg, index) { - error = new(LessError)({ - index: index || parserCurrentIndex, - type: 'Parse', - message: msg, - filename: env.currentFileInfo.filename - }, env); - } - - function emitChunk(force) { - var len = parserCurrentIndex - emitFrom; - if (((len < 512) && !force) || !len) { - return; - } - chunks.push(input.slice(emitFrom, parserCurrentIndex + 1)); - emitFrom = parserCurrentIndex + 1; - } - - for (parserCurrentIndex = 0; parserCurrentIndex < len; parserCurrentIndex++) { - cc = input.charCodeAt(parserCurrentIndex); - if (((cc >= 97) && (cc <= 122)) || (cc < 34)) { - // a-z or whitespace - continue; - } - - switch (cc) { - case 40: // ( - parenLevel++; - lastOpeningParen = parserCurrentIndex; - continue; - case 41: // ) - if (--parenLevel < 0) { - return fail("missing opening `(`"); - } - continue; - case 59: // ; - if (!parenLevel) { emitChunk(); } - continue; - case 123: // { - level++; - lastOpening = parserCurrentIndex; - continue; - case 125: // } - if (--level < 0) { - return fail("missing opening `{`"); - } - if (!level && !parenLevel) { emitChunk(); } - continue; - case 92: // \ - if (parserCurrentIndex < len - 1) { parserCurrentIndex++; continue; } - return fail("unescaped `\\`"); - case 34: - case 39: - case 96: // ", ' and ` - matched = 0; - currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 1; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 > 96) { continue; } - if (cc2 == cc) { matched = 1; break; } - if (cc2 == 92) { // \ - if (parserCurrentIndex == len - 1) { - return fail("unescaped `\\`"); - } - parserCurrentIndex++; - } - } - if (matched) { continue; } - return fail("unmatched `" + String.fromCharCode(cc) + "`", currentChunkStartIndex); - case 47: // /, check for comment - if (parenLevel || (parserCurrentIndex == len - 1)) { continue; } - cc2 = input.charCodeAt(parserCurrentIndex + 1); - if (cc2 == 47) { - // //, find lnfeed - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if ((cc2 <= 13) && ((cc2 == 10) || (cc2 == 13))) { break; } - } - } else if (cc2 == 42) { - // /*, find */ - lastMultiComment = currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len - 1; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 == 125) { lastMultiCommentEndBrace = parserCurrentIndex; } - if (cc2 != 42) { continue; } - if (input.charCodeAt(parserCurrentIndex + 1) == 47) { break; } - } - if (parserCurrentIndex == len - 1) { - return fail("missing closing `*/`", currentChunkStartIndex); - } - parserCurrentIndex++; - } - continue; - case 42: // *, check for unmatched */ - if ((parserCurrentIndex < len - 1) && (input.charCodeAt(parserCurrentIndex + 1) == 47)) { - return fail("unmatched `/*`"); - } - continue; - } - } - - if (level !== 0) { - if ((lastMultiComment > lastOpening) && (lastMultiCommentEndBrace > lastMultiComment)) { - return fail("missing closing `}` or `*/`", lastOpening); - } else { - return fail("missing closing `}`", lastOpening); - } - } else if (parenLevel !== 0) { - return fail("missing closing `)`", lastOpeningParen); - } - - emitChunk(true); - return chunks; - })(str); - - if (error) { - return callback(new(LessError)(error, env)); - } - - current = chunks[0]; - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)(null, this.parsers.primary()); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - return function (options, variables) { - options = options || {}; - var evaldRoot, - css, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, null, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var preEvalVisitors = [], - visitors = [ - new(tree.joinSelectorVisitor)(), - new(tree.processExtendsVisitor)(), - new(tree.toCSSVisitor)({compress: Boolean(options.compress)}) - ], i, root = this; - - if (options.plugins) { - for(i =0; i < options.plugins.length; i++) { - if (options.plugins[i].isPreEvalVisitor) { - preEvalVisitors.push(options.plugins[i]); - } else { - if (options.plugins[i].isPreVisitor) { - visitors.splice(0, 0, options.plugins[i]); - } else { - visitors.push(options.plugins[i]); - } - } - } - } - - for(i = 0; i < preEvalVisitors.length; i++) { - preEvalVisitors[i].run(root); - } - - evaldRoot = evaluate.call(root, evalEnv); - - for(i = 0; i < visitors.length; i++) { - visitors[i].run(evaldRoot); - } - - if (options.sourceMap) { - evaldRoot = new tree.sourceMapOutput( - { - contentsIgnoredCharsMap: parser.imports.contentsIgnoredChars, - writeSourceMap: options.writeSourceMap, - rootNode: evaldRoot, - contentsMap: parser.imports.contents, - sourceMapFilename: options.sourceMapFilename, - sourceMapURL: options.sourceMapURL, - outputFilename: options.sourceMapOutputFilename, - sourceMapBasepath: options.sourceMapBasepath, - sourceMapRootpath: options.sourceMapRootpath, - outputSourceFiles: options.outputSourceFiles, - sourceMapGenerator: options.sourceMapGenerator - }); - } - - css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits), - numPrecision: 8}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.cleancss && less.mode === 'node') { - var CleanCSS = require('clean-css'), - cleancssOptions = options.cleancssOptions || {}; - - if (cleancssOptions.keepSpecialComments === undefined) { - cleancssOptions.keepSpecialComments = "*"; - } - cleancssOptions.processImport = false; - cleancssOptions.noRebase = true; - if (cleancssOptions.noAdvanced === undefined) { - cleancssOptions.noAdvanced = true; - } - - return new CleanCSS(cleancssOptions).minify(css); - } else if (options.compress) { - return css.replace(/(^(\s)+)|((\s)+$)/g, ""); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - var loc = getLocation(i, input); - lines = input.split('\n'); - line = loc.line + 1; - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: loc.column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - return callback(e); - } - else { - return callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - return finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some LESS code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: parsers = { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var mixin = this.mixin, $re = _$re, root = [], node; - - while (current) - { - node = this.extendRule() || mixin.definition() || this.rule() || this.ruleset() || - mixin.call() || this.comment() || this.rulesetCall() || this.directive(); - if (node) { - root.push(node); - } else { - if (!($re(/^[\s\n]+/) || $re(/^;+/))) { - break; - } - } - if (peekChar('}')) { - break; - } - } - - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') { return; } - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($re(/^\/\/.*/), true, i, env.currentFileInfo); - } - comment = $re(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/); - if (comment) { - return new(tree.Comment)(comment, false, i, env.currentFileInfo); - } - }, - - comments: function () { - var comment, comments = []; - - while(true) { - comment = this.comment(); - if (!comment) { - break; - } - comments.push(comment); - } - - return comments; - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; } - - if (e) { $char('~'); } - - str = $re(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/); - if (str) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - k = $re(/^%|^[_A-Za-z-][_A-Za-z0-9-]*/); - if (k) { - var color = tree.Color.fromKeyword(k); - if (color) { - return color; - } - return new(tree.Keyword)(k); - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(current); - if (!name) { return; } - - name = name[1]; - nameLC = name.toLowerCase(); - if (nameLC === 'url') { - return null; - } - - i += name.length; - - if (nameLC === 'alpha') { - alpha_ret = parsers.alpha(); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $char('('); // Parse the '(' and consume whitespace. - - args = this.arguments(); - - if (! $char(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (true) { - arg = this.assignment() || parsers.expression(); - if (!arg) { - break; - } - args.push(arg); - if (! $char(',')) { - break; - } - } - return args; - }, - literal: function () { - return this.dimension() || - this.color() || - this.quoted() || - this.unicodeDescriptor(); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - key = $re(/^\w+(?=\s?=)/i); - if (!key) { - return; - } - if (!$char('=')) { - return; - } - value = parsers.entity(); - if (value) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$re(/^url\(/)) { - return; - } - - value = this.quoted() || this.variable() || - $re(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expectChar(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $re(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var curly, index = i; - - if (input.charAt(i) === '@' && (curly = $re(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $re(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) { - return; - } - - value = $re(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/); - if (value) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - ud = $re(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/); - if (ud) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '`') { return; } - if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) { - error("You are using JavaScript, which has been disabled."); - } - - if (e) { $char('~'); } - - str = $re(/^`([^`]*)`/); - if (str) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*:/))) { return name[1]; } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink(); - // - rulesetCall: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*\(\s*\)\s*;/))) { - return new tree.RulesetCall(name[1]); - } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList, extend; - - if (!(isRule ? $re(/^&:extend\(/) : $re(/^:extend\(/))) { return; } - - do { - option = null; - elements = null; - while (! (option = $re(/^(all)(?=\s*(\)|,))/))) { - e = this.element(); - if (!e) { break; } - if (elements) { elements.push(e); } else { elements = [ e ]; } - } - - option = option && option[1]; - - extend = new(tree.Extend)(new(tree.Selector)(elements), option, index); - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - - } while($char(",")); - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var s = input.charAt(i), important = false, index = i, elemIndex, - elements, elem, e, c, args; - - if (s !== '.' && s !== '#') { return; } - - save(); // stop us absorbing part of an invalid selector - - while (true) { - elemIndex = i; - e = $re(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/); - if (!e) { - break; - } - elem = new(tree.Element)(c, e, elemIndex, env.currentFileInfo); - if (elements) { elements.push(elem); } else { elements = [ elem ]; } - c = $char('>'); - } - - if (elements) { - if ($char('(')) { - args = this.args(true).args; - expectChar(')'); - } - - if (parsers.important()) { - important = true; - } - - if (parsers.end()) { - forget(); - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - } - - restore(); - }, - args: function (isCall) { - var parsers = parser.parsers, entities = parsers.entities, - returner = { args:null, variadic: false }, - expressions = [], argsSemiColon = [], argsComma = [], - isSemiColonSeperated, expressionContainsNamed, name, nameLoop, value, arg; - - save(); - - while (true) { - if (isCall) { - arg = parsers.detachedRuleset() || parsers.expression(); - } else { - parsers.comments(); - if (input.charAt(i) === '.' && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = entities.variable() || entities.literal() || entities.keyword(); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value && arg.value.length == 1) { - val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($char(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - - // we do not support setting a ruleset as a default variable - it doesn't make sense - // However if we do want to add it, there is nothing blocking it, just don't error - // and remove isCall dependency below - value = (isCall && parsers.detachedRuleset()) || parsers.expression(); - - if (!value) { - if (isCall) { - error("could not understand value for named argument"); - } else { - restore(); - returner.args = []; - return returner; - } - } - nameLoop = (name = val.name); - } else if (!isCall && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($char(',')) { - continue; - } - - if ($char(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - forget(); - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) { - return; - } - - save(); - - match = $re(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/); - if (match) { - name = match[1]; - - var argInfo = this.args(false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. - // also - // .mixincall(@a: {rule: set;}); - // so we have to be nice and restore - if (!$char(')')) { - furthest = i; - restore(); - return; - } - - parsers.comments(); - - if ($re(/^when/)) { // Guard - cond = expect(parsers.conditions, 'expected condition'); - } - - ruleset = parsers.block(); - - if (ruleset) { - forget(); - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } else { - forget(); - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - var entities = this.entities; - - return entities.literal() || entities.variable() || entities.url() || - entities.call() || entities.keyword() || entities.javascript() || - this.comment(); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $char(';') || peekChar('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $re(/^\(opacity=/i)) { return; } - value = $re(/^\d+/) || this.entities.variable(); - if (value) { - expectChar(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, c, v, index = i; - - c = this.combinator(); - - e = $re(/^(?:\d+\.\d+|\d+)%/) || $re(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $char('*') || $char('&') || this.attribute() || $re(/^\([^()@]+\)/) || $re(/^[\.#](?=@)/) || - this.entities.variableCurly(); - - if (! e) { - save(); - if ($char('(')) { - if ((v = this.selector()) && $char(')')) { - e = new(tree.Paren)(v); - forget(); - } else { - restore(); - } - } else { - forget(); - } - } - - if (e) { return new(tree.Element)(c, e, index, env.currentFileInfo); } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|' || c === '^') { - i++; - if (input.charAt(i) === '^') { - c = '^^'; - i++; - } - while (isWhitespace(input, i)) { i++; } - return new(tree.Combinator)(c); - } else if (isWhitespace(input, i - 1)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - // - // A CSS selector (see selector below) - // with less extensions e.g. the ability to extend and guard - // - lessSelector: function () { - return this.selector(true); - }, - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function (isLess) { - var index = i, $re = _$re, elements, extendList, c, e, extend, when, condition; - - while ((isLess && (extend = this.extend())) || (isLess && (when = $re(/^when/))) || (e = this.element())) { - if (when) { - condition = expect(this.conditions, 'expected condition'); - } else if (condition) { - error("CSS guard can only be used at the end of selector"); - } else if (extend) { - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - } else { - if (extendList) { error("Extend can only be used at the end of selector"); } - c = input.charAt(i); - if (elements) { elements.push(e); } else { elements = [ e ]; } - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { - break; - } - } - - if (elements) { return new(tree.Selector)(elements, extendList, condition, index, env.currentFileInfo); } - if (extendList) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - if (! $char('[')) { return; } - - var entities = this.entities, - key, val, op; - - if (!(key = entities.variableCurly())) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - op = $re(/^[|~*$^]?=/); - if (op) { - val = entities.quoted() || $re(/^[0-9]+%/) || $re(/^[\w-]+/) || entities.variableCurly(); - } - - expectChar(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($char('{') && (content = this.primary()) && $char('}')) { - return content; - } - }, - - blockRuleset: function() { - var block = this.block(); - - if (block) { - block = new tree.Ruleset(null, block); - } - return block; - }, - - detachedRuleset: function() { - var blockRuleset = this.blockRuleset(); - if (blockRuleset) { - return new tree.DetachedRuleset(blockRuleset); - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors, s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - while (true) { - s = this.lessSelector(); - if (!s) { - break; - } - if (selectors) { selectors.push(s); } else { selectors = [ s ]; } - this.comments(); - if (s.condition && selectors.length > 1) { - error("Guards are only currently allowed on a single selector."); - } - if (! $char(',')) { break; } - if (s.condition) { - error("Guards are only currently allowed on a single selector."); - } - this.comments(); - } - - if (selectors && (rules = this.block())) { - forget(); - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) { - ruleset.debugInfo = debugInfo; - } - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, startOfRule = i, c = input.charAt(startOfRule), important, merge, isVariable; - - if (c === '.' || c === '#' || c === '&') { return; } - - save(); - - name = this.variable() || this.ruleProperty(); - if (name) { - isVariable = typeof name === "string"; - - if (isVariable) { - value = this.detachedRuleset(); - } - - if (!value) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || isVariable) ? - (this.value() || this.anonymousValue()) : - (this.anonymousValue() || this.value()); - - important = this.important(); - - // a name returned by this.ruleProperty() is always an array of the form: - // [string-1, ..., string-n, ""] or [string-1, ..., string-n, "+"] - // where each item is a tree.Keyword or tree.Variable - merge = !isVariable && name.pop().value; - } - - if (value && this.end()) { - forget(); - return new (tree.Rule)(name, value, important, merge, startOfRule, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } else { - forget(); - } - }, - anonymousValue: function () { - var match; - match = /^([^@+\/'"*`(;{}-]*);/.exec(current); - if (match) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $re(/^@import?\s+/); - - var options = (dir ? this.importOptions() : null) || {}; - - if (dir && (path = this.entities.quoted() || this.entities.url())) { - features = this.mediaFeatures(); - if ($char(';')) { - forget(); - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $char('(')) { return null; } - do { - o = this.importOption(); - if (o) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $char(',')) { break; } - } - } while (o); - expectChar(')'); - return options; - }, - - importOption: function() { - var opt = $re(/^(less|css|multiple|once|inline|reference)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var entities = this.entities, nodes = [], e, p; - do { - e = entities.keyword() || entities.variable(); - if (e) { - nodes.push(e); - } else if ($char('(')) { - p = this.property(); - e = this.value(); - if ($char(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null; } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var entities = this.entities, features = [], e; - do { - e = this.mediaFeature(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } else { - e = entities.variable(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - if ($re(/^@media/)) { - features = this.mediaFeatures(); - - rules = this.block(); - if (rules) { - media = new(tree.Media)(rules, features, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - media.debugInfo = debugInfo; - } - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var index = i, name, value, rules, nonVendorSpecificName, - hasIdentifier, hasExpression, hasUnknown, hasBlock = true; - - if (input.charAt(i) !== '@') { return; } - - value = this['import']() || this.media(); - if (value) { - return value; - } - - save(); - - name = $re(/^@[a-z-]+/); - - if (!name) { return; } - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - /* - case "@font-face": - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - */ - case "@charset": - hasIdentifier = true; - hasBlock = false; - break; - case "@namespace": - hasExpression = true; - hasBlock = false; - break; - case "@keyframes": - hasIdentifier = true; - break; - case "@host": - case "@page": - case "@document": - case "@supports": - hasUnknown = true; - break; - } - - if (hasIdentifier) { - value = this.entity(); - if (!value) { - error("expected " + name + " identifier"); - } - } else if (hasExpression) { - value = this.expression(); - if (!value) { - error("expected " + name + " expression"); - } - } else if (hasUnknown) { - value = ($re(/^[^{;]+/) || '').trim(); - if (value) { - value = new(tree.Anonymous)(value); - } - } - - if (hasBlock) { - rules = this.blockRuleset(); - } - - if (rules || (!hasBlock && value && $char(';'))) { - forget(); - return new(tree.Directive)(name, value, rules, index, env.currentFileInfo, - env.dumpLineNumbers ? getDebugInfo(index, input, env) : null); - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = []; - - do { - e = this.expression(); - if (e) { - expressions.push(e); - if (! $char(',')) { break; } - } - } while(e); - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $re(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($char('(')) { - a = this.addition(); - if (a) { - e = new(tree.Expression)([a]); - expectChar(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced; - m = this.operand(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - if (peek(/^\/[*\/]/)) { - break; - } - op = $char('/') || $char('*'); - - if (!op) { break; } - - a = this.operand(); - - if (!a) { break; } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - m = this.multiplication(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - op = $re(/^[-+]\s+/) || (!isSpaced && ($char('+') || $char('-'))); - if (!op) { - break; - } - a = this.multiplication(); - if (!a) { - break; - } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - a = this.condition(); - if (a) { - while (true) { - if (!peek(/^,\s*(not\s*)?\(/) || !$char(',')) { - break; - } - b = this.condition(); - if (!b) { - break; - } - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var entities = this.entities, index = i, negate = false, - a, b, c, op; - - if ($re(/^not/)) { negate = true; } - expectChar('('); - a = this.addition() || entities.keyword() || entities.quoted(); - if (a) { - op = $re(/^(?:>=|<=|=<|[<=>])/); - if (op) { - b = this.addition() || entities.keyword() || entities.quoted(); - if (b) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expectChar(')'); - return $re(/^and/) ? new(tree.Condition)('and', c, this.condition()) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var entities = this.entities, - p = input.charAt(i + 1), negate; - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $char('-'); } - var o = this.sub() || entities.dimension() || - entities.color() || entities.variable() || - entities.call(); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var entities = [], e, delim; - - do { - e = this.addition() || this.entity(); - if (e) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/)) { - delim = $char('/'); - if (delim) { - entities.push(new(tree.Anonymous)(delim)); - } - } - } - } while (e); - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name = $re(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/); - if (name) { - return name[1]; - } - }, - ruleProperty: function () { - var c = current, name = [], index = [], length = 0, s, k; - - function match(re) { - var a = re.exec(c); - if (a) { - index.push(i + length); - length += a[0].length; - c = c.slice(a[1].length); - return name.push(a[1]); - } - } - - match(/^(\*?)/); - while (match(/^((?:[\w-]+)|(?:@\{[\w-]+\}))/)); // ! - if ((name.length > 1) && match(/^\s*((?:\+_|\+)?)\s*:/)) { - // at last, we have the complete match now. move forward, - // convert name particles to tree objects and return: - skipWhitespace(length); - if (name[0] === '') { - name.shift(); - index.shift(); - } - for (k = 0; k < name.length; k++) { - s = name[k]; - name[k] = (s.charAt(0) !== '@') - ? new(tree.Keyword)(s) - : new(tree.Variable)('@' + s.slice(2, -1), - index[k], env.currentFileInfo); - } - return name; - } - } - } - }; - return parser; -}; -less.Parser.serializeVars = function(vars) { - var s = ''; - - for (var name in vars) { - if (Object.hasOwnProperty.call(vars, name)) { - var value = vars[name]; - s += ((name[0] === '@') ? '' : '@') + name +': '+ value + - ((('' + value).slice(-1) === ';') ? '' : ';'); - } - } - - return s; -}; - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 255); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; } - else if (h * 2 < 1) { return m2; } - else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; } - else { return m1; } - } - - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - luminance: function (color) { - var luminance = - (0.2126 * color.rgb[0] / 255) - + (0.7152 * color.rgb[1] / 255) - + (0.0722 * color.rgb[2] / 255); - - return new(tree.Dimension)(Math.round(luminance * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - // filter: saturate(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if (color.luma() < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - replace: function (string, pattern, replacement, flags) { - var result = string.value; - - result = result.replace(new RegExp(pattern.value, flags ? flags.value : ''), replacement.value); - return new(tree.Quoted)(string.quote || '', result, string.escaped); - }, - '%': function (string /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - result = string.value; - - for (var i = 0; i < args.length; i++) { - /*jshint loopfunc:true */ - result = result.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - result = result.replace(/%%/g, '%'); - return new(tree.Quoted)(string.quote || '', result, string.escaped); - }, - unit: function (val, unit) { - if(!(val instanceof tree.Dimension)) { - throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") }; - } - if (unit) { - if (unit instanceof tree.Keyword) { - unit = unit.value; - } else { - unit = unit.toCSS(); - } - } else { - unit = ""; - } - return new(tree.Dimension)(val.value, unit); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return _math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _minmax: function (isMin, args) { - args = Array.prototype.slice.call(args); - switch(args.length) { - case 0: throw { type: "Argument", message: "one or more arguments required" }; - } - var i, j, current, currentUnified, referenceUnified, unit, unitStatic, unitClone, - order = [], // elems only contains original argument values. - values = {}; // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - for (i = 0; i < args.length; i++) { - current = args[i]; - if (!(current instanceof tree.Dimension)) { - if(Array.isArray(args[i].value)) { - Array.prototype.push.apply(args, Array.prototype.slice.call(args[i].value)); - } - continue; - } - currentUnified = current.unit.toString() === "" && unitClone !== undefined ? new(tree.Dimension)(current.value, unitClone).unify() : current.unify(); - unit = currentUnified.unit.toString() === "" && unitStatic !== undefined ? unitStatic : currentUnified.unit.toString(); - unitStatic = unit !== "" && unitStatic === undefined || unit !== "" && order[0].unify().unit.toString() === "" ? unit : unitStatic; - unitClone = unit !== "" && unitClone === undefined ? current.unit.toString() : unitClone; - j = values[""] !== undefined && unit !== "" && unit === unitStatic ? values[""] : values[unit]; - if (j === undefined) { - if(unitStatic !== undefined && unit !== unitStatic) { - throw{ type: "Argument", message: "incompatible types" }; - } - values[unit] = order.length; - order.push(current); - continue; - } - referenceUnified = order[j].unit.toString() === "" && unitClone !== undefined ? new(tree.Dimension)(order[j].value, unitClone).unify() : order[j].unify(); - if ( isMin && currentUnified.value < referenceUnified.value || - !isMin && currentUnified.value > referenceUnified.value) { - order[j] = current; - } - } - if (order.length == 1) { - return order[0]; - } - args = order.map(function (a) { return a.toCSS(this.env); }).join(this.env.compress ? "," : ", "); - return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")"); - }, - min: function () { - return this._minmax(true, arguments); - }, - max: function () { - return this._minmax(false, arguments); - }, - "get-unit": function (n) { - return new(tree.Anonymous)(n.unit); - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - var colorCandidate = n.value, - returnColor; - returnColor = tree.Color.fromKeyword(colorCandidate); - if (returnColor) { - return returnColor; - } - if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) { - return new(tree.Color)(colorCandidate.slice(1)); - } - throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" }; - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - return Array.isArray(values.value) - ? values.value[index] : Array(values)[index]; - }, - length: function(values) { - var n = Array.isArray(values.value) ? values.value.length : 1; - return new tree.Dimension(n); - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require('fs'), - path = require('path'), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) { mimetype += ';base64'; } - } - else { - useBase64 = /;base64$/.test(mimetype); - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "\"data:" + mimetype + ',' + buf + "\""; - return new(tree.URL)(new(tree.Anonymous)(uri)); - }, - - "svg-gradient": function(direction) { - - function throwArgumentDescriptor() { - throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" }; - } - - if (arguments.length < 3) { - throwArgumentDescriptor(); - } - var stops = Array.prototype.slice.call(arguments, 1), - gradientDirectionSvg, - gradientType = "linear", - rectangleDimension = 'x="0" y="0" width="1" height="1"', - useBase64 = true, - renderEnv = {compress: false}, - returner, - directionValue = direction.toCSS(renderEnv), - i, color, position, positionValue, alpha; - - switch (directionValue) { - case "to bottom": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - gradientType = "radial"; - gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" }; - } - returner = '' + - '' + - '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>'; - - for (i = 0; i < stops.length; i+= 1) { - if (stops[i].value) { - color = stops[i].value[0]; - position = stops[i].value[1]; - } else { - color = stops[i]; - position = undefined; - } - - if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) { - throwArgumentDescriptor(); - } - positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%"; - alpha = color.alpha; - returner += ''; - } - returner += '' + - ''; - - if (useBase64) { - try { - returner = require('./encoder').encodeBase64(returner); // TODO browser implementation - } catch(e) { - useBase64 = false; - } - } - - returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'"; - return new(tree.URL)(new(tree.Anonymous)(returner)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -// Math - -var mathFunctions = { - // name, unit - ceil: null, - floor: null, - sqrt: null, - abs: null, - tan: "", - sin: "", - cos: "", - atan: "rad", - asin: "rad", - acos: "rad" -}; - -function _math(fn, unit, n) { - if (!(n instanceof tree.Dimension)) { - throw { type: "Argument", message: "argument must be a number" }; - } - if (unit == null) { - unit = n.unit; - } else { - n = n.unify(); - } - return new(tree.Dimension)(fn(parseFloat(n.value)), unit); -} - -// ~ End of Math - -// Color Blending -// ref: http://www.w3.org/TR/compositing-1 - -function colorBlend(mode, color1, color2) { - var ab = color1.alpha, cb, // backdrop - as = color2.alpha, cs, // source - ar, cr, r = []; // result - - ar = as + ab * (1 - as); - for (var i = 0; i < 3; i++) { - cb = color1.rgb[i] / 255; - cs = color2.rgb[i] / 255; - cr = mode(cb, cs); - if (ar) { - cr = (as * cs + ab * (cb - - as * (cb + cs - cr))) / ar; - } - r[i] = cr * 255; - } - - return new(tree.Color)(r, ar); -} - -var colorBlendMode = { - multiply: function(cb, cs) { - return cb * cs; - }, - screen: function(cb, cs) { - return cb + cs - cb * cs; - }, - overlay: function(cb, cs) { - cb *= 2; - return (cb <= 1) - ? colorBlendMode.multiply(cb, cs) - : colorBlendMode.screen(cb - 1, cs); - }, - softlight: function(cb, cs) { - var d = 1, e = cb; - if (cs > 0.5) { - e = 1; - d = (cb > 0.25) ? Math.sqrt(cb) - : ((16 * cb - 12) * cb + 4) * cb; - } - return cb - (1 - 2 * cs) * e * (d - cb); - }, - hardlight: function(cb, cs) { - return colorBlendMode.overlay(cs, cb); - }, - difference: function(cb, cs) { - return Math.abs(cb - cs); - }, - exclusion: function(cb, cs) { - return cb + cs - 2 * cb * cs; - }, - - // non-w3c functions: - average: function(cb, cs) { - return (cb + cs) / 2; - }, - negation: function(cb, cs) { - return 1 - Math.abs(cb + cs - 1); - } -}; - -// ~ End of Color Blending - -tree.defaultFunc = { - eval: function () { - var v = this.value_, e = this.error_; - if (e) { - throw e; - } - if (v != null) { - return v ? tree.True : tree.False; - } - }, - value: function (v) { - this.value_ = v; - }, - error: function (e) { - this.error_ = e; - }, - reset: function () { - this.value_ = this.error_ = null; - } -}; - -function initFunctions() { - var f, tf = tree.functions; - - // math - for (f in mathFunctions) { - if (mathFunctions.hasOwnProperty(f)) { - tf[f] = _math.bind(null, Math[f], mathFunctions[f]); - } - } - - // color blending - for (f in colorBlendMode) { - if (colorBlendMode.hasOwnProperty(f)) { - tf[f] = colorBlend.bind(null, colorBlendMode[f]); - } - } - - // default - f = tree.defaultFunc; - tf["default"] = f.eval.bind(f); - -} initFunctions(); - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.fround = function(env, value) { - var p; - if (env && (env.numPrecision != null)) { - p = Math.pow(10, env.numPrecision); - return Math.round(value * p) / p; - } else { - return value; - } -}; - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); - -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); - -(function (tree) { - -tree.debugInfo = function(env, ctx, lineSeperator) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:\/\\])/g, function (a) { - if (a == '\\') { - a = '\/'; - } - return '\\' + a; - }) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - r = fun.call(obj, obj[i]); - if (r) { return r; } - } - return null; -}; - -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false); }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -tree.toCSS = function (env) { - var strs = []; - this.genCSS(env, { - add: function(chunk, fileInfo, index) { - strs.push(chunk); - }, - isEmpty: function () { - return strs.length === 0; - } - }); - return strs.join(''); -}; - -tree.outputRuleset = function (env, output, rules) { - var ruleCnt = rules.length, i; - env.tabLevel = (env.tabLevel | 0) + 1; - - // Compressed - if (env.compress) { - output.add('{'); - for (i = 0; i < ruleCnt; i++) { - rules[i].genCSS(env, output); - } - output.add('}'); - env.tabLevel--; - return; - } - - // Non-compressed - var tabSetStr = '\n' + Array(env.tabLevel).join(" "), tabRuleStr = tabSetStr + " "; - if (!ruleCnt) { - output.add(" {" + tabSetStr + '}'); - } else { - output.add(" {" + tabRuleStr); - rules[0].genCSS(env, output); - for (i = 1; i < ruleCnt; i++) { - output.add(tabRuleStr); - rules[i].genCSS(env, output); - } - output.add(tabSetStr + '}'); - } - - env.tabLevel--; -}; - -})(require('./tree')); - -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } - return this; - }, - genCSS: function (env, output) { - output.add("alpha(opacity="); - - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - - output.add(")"); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Anonymous = function (string, index, currentFileInfo, mapLines) { - this.value = string.value || string; - this.index = index; - this.mapLines = mapLines; - this.currentFileInfo = currentFileInfo; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - eval: function () { - return new tree.Anonymous(this.value, this.index, this.currentFileInfo, this.mapLines); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - }, - genCSS: function (env, output) { - output.add(this.value, this.currentFileInfo, this.index, this.mapLines); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - }, - genCSS: function (env, output) { - output.add(this.key + '='); - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - if (this.args) { - this.args = visitor.visitArray(this.args); - } - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - return new tree.Call(this.name, args, this.index, this.currentFileInfo); - }, - - genCSS: function (env, output) { - output.add(this.name + "(", this.currentFileInfo, this.index); - - for(var i = 0; i < this.args.length; i++) { - this.args[i].genCSS(env, output); - if (i + 1 < this.args.length) { - output.add(", "); - } - } - - output.add(")"); - }, - - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; - -var transparentKeyword = "transparent"; - -tree.Color.prototype = { - type: "Color", - eval: function () { return this; }, - luma: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255; - - r = (r <= 0.03928) ? r / 12.92 : Math.pow(((r + 0.055) / 1.055), 2.4); - g = (g <= 0.03928) ? g / 12.92 : Math.pow(((g + 0.055) / 1.055), 2.4); - b = (b <= 0.03928) ? b / 12.92 : Math.pow(((b + 0.055) / 1.055), 2.4); - - return 0.2126 * r + 0.7152 * g + 0.0722 * b; - }, - - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress, - alpha = tree.fround(env, this.alpha); - - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - if (alpha < 1) { - if (alpha === 0 && this.isTransparentKeyword) { - return transparentKeyword; - } - return "rgba(" + this.rgb.map(function (c) { - return clamp(Math.round(c), 255); - }).concat(clamp(alpha, 1)) - .join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.toRGB(); - - if (compress) { - var splitcolor = color.split(''); - - // Convert color to short format - if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) { - color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5]; - } - } - - return color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var rgb = []; - var alpha = this.alpha * (1 - other.alpha) + other.alpha; - for (var c = 0; c < 3; c++) { - rgb[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(rgb, alpha); - }, - - toRGB: function () { - return toHex(this.rgb); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - return toHex([this.alpha * 255].concat(this.rgb)); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - -tree.Color.fromKeyword = function(keyword) { - keyword = keyword.toLowerCase(); - - if (tree.colors.hasOwnProperty(keyword)) { - // detect named color - return new(tree.Color)(tree.colors[keyword].slice(1)); - } - if (keyword === transparentKeyword) { - var transparent = new(tree.Color)([0, 0, 0], 0); - transparent.isTransparentKeyword = true; - return transparent; - } -}; - -function toHex(v) { - return '#' + v.map(function (c) { - c = clamp(Math.round(c), 255); - return (c < 16 ? '0' : '') + c.toString(16); - }).join(''); -} - -function clamp(v, max) { - return Math.min(Math.max(v, 0), max); -} - -})(require('../tree')); - -(function (tree) { - -tree.Comment = function (value, silent, index, currentFileInfo) { - this.value = value; - this.silent = !!silent; - this.currentFileInfo = currentFileInfo; -}; -tree.Comment.prototype = { - type: "Comment", - genCSS: function (env, output) { - if (this.debugInfo) { - output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index); - } - output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n - }, - toCSS: tree.toCSS, - isSilent: function(env) { - var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced), - isCompressed = env.compress && !this.value.match(/^\/\*!/); - return this.silent || isReference || isCompressed; - }, - eval: function () { return this; }, - markReferenced: function () { - this.isReferenced = true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<' || op === '<='; - case 0: return op === '=' || op === '>=' || op === '=<' || op === '<='; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.DetachedRuleset = function (ruleset, frames) { - this.ruleset = ruleset; - this.frames = frames; -}; -tree.DetachedRuleset.prototype = { - type: "DetachedRuleset", - accept: function (visitor) { - this.ruleset = visitor.visit(this.ruleset); - }, - eval: function (env) { - var frames = this.frames || env.frames.slice(0); - return new tree.DetachedRuleset(this.ruleset, frames); - }, - callEval: function (env) { - return this.ruleset.eval(this.frames ? new(tree.evalEnv)(env, this.frames.concat(env.frames)) : env); - } -}; -})(require('../tree')); - -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - genCSS: function (env, output) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = tree.fround(env, this.value), - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && this.unit.isLength()) { - output.add(strValue); - return; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - output.add(strValue); - this.unit.genCSS(env, output); - }, - toCSS: tree.toCSS, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - /*jshint noempty:false */ - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a, b, - aValue, bValue; - - if (this.unit.isEmpty() || other.unit.isEmpty()) { - a = this; - b = other; - } else { - a = this.unify(); - b = other.unify(); - if (a.unit.compare(b.unit) !== 0) { - return -1; - } - } - aValue = a.value; - bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'px', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, targetUnit, derivedConversions = {}, applyUnit; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - applyUnit = function (atomicUnit, denominator) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(applyUnit); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'px': 0.0254 / 96, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - genCSS: function (env, output) { - if (this.numerator.length >= 1) { - output.add(this.numerator[0]); - } else - if (this.denominator.length >= 1) { - output.add(this.denominator[0]); - } else - if ((!env || !env.strictUnits) && this.backupUnit) { - output.add(this.backupUnit); - } - }, - toCSS: tree.toCSS, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isLength: function () { - return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/)); - }, - - isEmpty: function () { - return this.numerator.length === 0 && this.denominator.length === 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length === 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, result = {}, mapUnit; - - mapUnit = function (atomicUnit) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }; - - for (var groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(mapUnit); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Directive = function (name, value, rules, index, currentFileInfo, debugInfo) { - this.name = name; - this.value = value; - if (rules) { - this.rules = rules; - this.rules.allowImports = true; - } - this.index = index; - this.currentFileInfo = currentFileInfo; - this.debugInfo = debugInfo; -}; - -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - var value = this.value, rules = this.rules; - if (rules) { - rules = visitor.visit(rules); - } - if (value) { - value = visitor.visit(value); - } - }, - genCSS: function (env, output) { - var value = this.value, rules = this.rules; - output.add(this.name, this.currentFileInfo, this.index); - if (value) { - output.add(' '); - value.genCSS(env, output); - } - if (rules) { - tree.outputRuleset(env, output, [rules]); - } else { - output.add(';'); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var value = this.value, rules = this.rules; - if (value) { - value = value.eval(env); - } - if (rules) { - rules = rules.eval(env); - rules.root = true; - } - return new(tree.Directive)(this.name, value, rules, - this.index, this.currentFileInfo, this.debugInfo); - }, - variable: function (name) { if (this.rules) return tree.Ruleset.prototype.variable.call(this.rules, name); }, - find: function () { if (this.rules) return tree.Ruleset.prototype.find.apply(this.rules, arguments); }, - rulesets: function () { if (this.rules) return tree.Ruleset.prototype.rulesets.apply(this.rules); }, - markReferenced: function () { - var i, rules; - this.isReferenced = true; - if (this.rules) { - rules = this.rules.rules; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Element = function (combinator, value, index, currentFileInfo) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - var value = this.value; - this.combinator = visitor.visit(this.combinator); - if (typeof value === "object") { - this.value = visitor.visit(value); - } - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index, - this.currentFileInfo); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env), this.currentFileInfo, this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value === '' && this.combinator.value.charAt(0) === '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - _outputMap: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : ' + ', - '~' : ' ~ ', - '>' : ' > ', - '|' : '|', - '^' : ' ^ ', - '^^' : ' ^^ ' - }, - _outputMapCompressed: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : '+', - '~' : '~', - '>' : '>', - '|' : '|', - '^' : '^', - '^^' : '^^' - }, - genCSS: function (env, output) { - output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - genCSS: function (env, output) { - for(var i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i + 1 < this.value.length) { - output.add(" "); - } - } - }, - toCSS: tree.toCSS, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - this.object_id = tree.Extend.next_id++; - this.parent_ids = [this.object_id]; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; -tree.Extend.next_id = 0; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i, - selectorElements; - - for(i = 0; i < selectors.length; i++) { - selectorElements = selectors[i].elements; - // duplicate the logic in genCSS function inside the selector node. - // future TODO - move both logics into the selector joiner visitor - if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") { - selectorElements[0].combinator.value = ' '; - } - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); - -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined || this.options.inline) { - this.css = !this.options.less || this.options.inline; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - this.path = visitor.visit(this.path); - if (!this.options.inline && this.root) { - this.root = visitor.visit(this.root); - } - }, - genCSS: function (env, output) { - if (this.css) { - output.add("@import ", this.currentFileInfo, this.index); - this.path.genCSS(env, output); - if (this.features) { - output.add(" "); - this.features.genCSS(env, output); - } - output.add(';'); - } - }, - toCSS: tree.toCSS, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - - if (!(path instanceof tree.URL)) { - if (rootpath) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath +pathValue; - } - } - path.value = env.normalizePath(path.value); - } - - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { - if (typeof this.skip === "function") { - this.skip = this.skip(); - } - if (this.skip) { - return []; - } - } - - if (this.options.inline) { - //todo needs to reference css file not import - var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true); - return this.features ? new(tree.Media)([contents], this.features.value) : [contents]; - } else if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" , - index: this.index }; - } - - var variables = env.frames[0].variables(); - for (var k in variables) { - if (variables.hasOwnProperty(k)) { - /*jshint loopfunc:true */ - context[k.slice(1)] = { - value: variables[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message.replace(/["]/g, "'") + "'" , - index: this.index }; - } - if (typeof(result) === 'number') { - return new(tree.Dimension)(result); - } else if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Keyword = function (value) { this.value = value; }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - genCSS: function (env, output) { - if (this.value === '%') { throw { type: "Syntax", message: "Invalid % without number" }; } - output.add(this.value); - }, - toCSS: tree.toCSS, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); - -(function (tree) { - -tree.Media = function (value, features, index, currentFileInfo) { - this.index = index; - this.currentFileInfo = currentFileInfo; - - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.rules = [new(tree.Ruleset)(selectors, value)]; - this.rules[0].allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - }, - genCSS: function (env, output) { - output.add('@media ', this.currentFileInfo, this.index); - this.features.genCSS(env, output); - tree.outputRuleset(env, output, this.rules); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)(null, [], this.index, this.currentFileInfo); - if(this.debugInfo) { - this.rules[0].debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.rules[0]); - media.rules = [this.rules[0].eval(env)]; - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env); - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', this.index, this.currentFileInfo), - sels = [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)]; - sels[0].mediaEmpty = true; - return sels; - }, - markReferenced: function () { - var i, rules = this.rules[0].rules; - this.rules[0].markReferenced(); - this.isReferenced = true; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - if (!selectors) - return; - this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])]; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = (args && args.length) ? args : null; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - if (this.selector) { - this.selector = visitor.visit(this.selector); - } - if (this.arguments) { - this.arguments = visitor.visitArray(this.arguments); - } - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule, - candidates = [], candidate, conditionResult = [], defaultFunc = tree.defaultFunc, - defaultResult, defNone = 0, defTrue = 1, defFalse = 2, count; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - - // To make `default()` function independent of definition order we have two "subpasses" here. - // At first we evaluate each guard *twice* (with `default() == true` and `default() == false`), - // and build candidate list with corresponding flags. Then, when we know all possible matches, - // we make a final decision. - - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - - if (mixin.matchArgs(args, env)) { - candidate = {mixin: mixin, group: defNone}; - - if (mixin.matchCondition) { - for (f = 0; f < 2; f++) { - defaultFunc.value(f); - conditionResult[f] = mixin.matchCondition(args, env); - } - if (conditionResult[0] || conditionResult[1]) { - if (conditionResult[0] != conditionResult[1]) { - candidate.group = conditionResult[1] ? - defTrue : defFalse; - } - - candidates.push(candidate); - } - } - else { - candidates.push(candidate); - } - - match = true; - } - } - - defaultFunc.reset(); - - count = [0, 0, 0]; - for (m = 0; m < candidates.length; m++) { - count[candidates[m].group]++; - } - - if (count[defNone] > 0) { - defaultResult = defFalse; - } else { - defaultResult = defTrue; - if ((count[defTrue] + count[defFalse]) > 1) { - throw { type: 'Runtime', - message: 'Ambiguous use of `default()` found when matching for `' - + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - for (m = 0; m < candidates.length; m++) { - candidate = candidates[m].group; - if ((candidate === defNone) || (candidate === defaultResult)) { - try { - mixin = candidates[m].mixin; - if (!(mixin instanceof tree.mixin.Definition)) { - mixin = new tree.mixin.Definition("", [], mixin.rules, null, false); - mixin.originalRuleset = mixins[m].originalRuleset || mixins[m]; - } - Array.prototype.push.apply( - rules, mixin.evalCall(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - } - - if (match) { - if (!this.currentFileInfo || !this.currentFileInfo.reference) { - for (i = 0; i < rules.length; i++) { - rule = rules[i]; - if (rule.markReferenced) { - rule.markReferenced(); - } - } - } - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - }, - format: function (args) { - return this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")"; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic, frames) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1; } - else { return count; } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = frames; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - if (this.params && this.params.length) { - this.params = visitor.visitArray(this.params); - } - this.rules = visitor.visitArray(this.rules); - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - /*jshint boss:true */ - var frame = new(tree.Ruleset)(null, null), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex, argsLength = 0; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - argsLength = args.length; - - for(i = 0; i < argsLength; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.prependRule(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) { continue; } - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic) { - varargs = []; - for (j = argIndex; j < argsLength; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.prependRule(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + argsLength + ' for ' + this.arity + ')' }; - } - - frame.prependRule(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < argsLength; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env) { - return new tree.mixin.Definition(this.name, this.params, this.rules, this.condition, this.variadic, this.frames || env.frames.slice(0)); - }, - evalCall: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames ? this.frames.concat(env.frames) : env.frames, - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - rules, ruleset; - - frame.prependRule(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules); - ruleset.originalRuleset = this; - ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames))); - if (important) { - ruleset = this.parent.makeImportant.apply(ruleset); - } - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames.concat(env.frames)), args, [])] // the parameter variables - .concat(this.frames) // the parent namespace/mixin frames - .concat(env.frames)))) { // the current environment frames - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (! this.variadic) { - if (argsLength < this.required) { return false; } - if (argsLength > this.params.length) { return false; } - } else { - if (argsLength < (this.required - 1)) { return false; } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('-'); - this.value.genCSS(env, output); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env); - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - a = a.toColor(); - } - if (b instanceof tree.Dimension && a instanceof tree.Color) { - b = b.toColor(); - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - genCSS: function (env, output) { - this.operands[0].genCSS(env, output); - if (this.isSpaced) { - output.add(" "); - } - output.add(this.op); - if (this.isSpaced) { - output.add(" "); - } - this.operands[1].genCSS(env, output); - }, - toCSS: tree.toCSS -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('('); - this.value.genCSS(env, output); - output.add(')'); - }, - toCSS: tree.toCSS, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - genCSS: function (env, output) { - if (!this.escaped) { - output.add(this.quote, this.currentFileInfo, this.index); - } - output.add(this.value); - if (!this.escaped) { - output.add(this.quote); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value || value instanceof tree.Ruleset) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.merge = merge; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - this.variable = name.charAt && (name.charAt(0) === '@'); -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index); - try { - this.value.genCSS(env, output); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index); - }, - toCSS: tree.toCSS, - eval: function (env) { - var strictMathBypass = false, name = this.name, evaldValue; - if (typeof name !== "string") { - // expand 'primitive' name directly to get - // things faster (~10% for benchmark.less): - name = (name.length === 1) - && (name[0] instanceof tree.Keyword) - ? name[0].value : evalName(env, name); - } - if (name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - evaldValue = this.value.eval(env); - - if (!this.variable && evaldValue.type === "DetachedRuleset") { - throw { message: "Rulesets cannot be evaluated on a property.", - index: this.index, filename: this.currentFileInfo.filename }; - } - - return new(tree.Rule)(name, - evaldValue, - this.important, - this.merge, - this.index, this.currentFileInfo, this.inline); - } - catch(e) { - if (typeof e.index !== 'number') { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - } - throw e; - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.merge, - this.index, this.currentFileInfo, this.inline); - } -}; - -function evalName(env, name) { - var value = "", i, n = name.length, - output = {add: function (s) {value += s;}}; - for (i = 0; i < n; i++) { - name[i].eval(env).genCSS(env, output); - } - return value; -} - -})(require('../tree')); - -(function (tree) { - -tree.RulesetCall = function (variable) { - this.variable = variable; -}; -tree.RulesetCall.prototype = { - type: "RulesetCall", - accept: function (visitor) { - }, - eval: function (env) { - var detachedRuleset = new(tree.Variable)(this.variable).eval(env); - return detachedRuleset.callEval(env); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - if (this.paths) { - visitor.visitArray(this.paths, true); - } else if (this.selectors) { - this.selectors = visitor.visitArray(this.selectors); - } - if (this.rules && this.rules.length) { - this.rules = visitor.visitArray(this.rules); - } - }, - eval: function (env) { - var thisSelectors = this.selectors, selectors, - selCnt, selector, i, defaultFunc = tree.defaultFunc, hasOnePassingSelector = false; - - if (thisSelectors && (selCnt = thisSelectors.length)) { - selectors = []; - defaultFunc.error({ - type: "Syntax", - message: "it is currently only allowed in parametric mixin guards," - }); - for (i = 0; i < selCnt; i++) { - selector = thisSelectors[i].eval(env); - selectors.push(selector); - if (selector.evaldCondition) { - hasOnePassingSelector = true; - } - } - defaultFunc.reset(); - } else { - hasOnePassingSelector = true; - } - - var rules = this.rules ? this.rules.slice(0) : null, - ruleset = new(tree.Ruleset)(selectors, rules, this.strictImports), - rule, subRule; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - if (!hasOnePassingSelector) { - rules.length = 0; - } - - // push the current ruleset to the frames stack - var envFrames = env.frames; - envFrames.unshift(ruleset); - - // currrent selectors - var envSelectors = env.selectors; - if (!envSelectors) { - env.selectors = envSelectors = []; - } - envSelectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - var rsRules = ruleset.rules, rsRuleCnt = rsRules ? rsRules.length : 0; - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Definition || rsRules[i] instanceof tree.DetachedRuleset) { - rsRules[i] = rsRules[i].eval(env); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Call) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } else if (rsRules[i] instanceof tree.RulesetCall) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).rules.filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope at all - return false; - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (i = 0; i < rsRules.length; i++) { - rule = rsRules[i]; - if (! (rule instanceof tree.mixin.Definition || rule instanceof tree.DetachedRuleset)) { - rsRules[i] = rule = rule.eval ? rule.eval(env) : rule; - } - } - - // Evaluate everything else - for (i = 0; i < rsRules.length; i++) { - rule = rsRules[i]; - // for rulesets, check if it is a css guard and can be removed - if (rule instanceof tree.Ruleset && rule.selectors && rule.selectors.length === 1) { - // check if it can be folded in (e.g. & where) - if (rule.selectors[0].isJustParentSelector()) { - rsRules.splice(i--, 1); - - for(var j = 0; j < rule.rules.length; j++) { - subRule = rule.rules[j]; - if (!(subRule instanceof tree.Rule) || !subRule.variable) { - rsRules.splice(++i, 0, subRule); - } - } - } - } - } - - // Pop the stack - envFrames.shift(); - envSelectors.shift(); - - if (env.mediaBlocks) { - for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var rules = this.rules, i, importRules; - if (!rules) { return; } - - for (i = 0; i < rules.length; i++) { - if (rules[i] instanceof tree.Import) { - importRules = rules[i].eval(env); - if (importRules && importRules.length) { - rules.splice.apply(rules, [i, 1].concat(importRules)); - i+= importRules.length-1; - } else { - rules.splice(i, 1, importRules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - // lets you call a css selector with a guard - matchCondition: function (args, env) { - var lastSelector = this.selectors[this.selectors.length-1]; - if (!lastSelector.evaldCondition) { - return false; - } - if (lastSelector.condition && - !lastSelector.condition.eval( - new(tree.evalEnv)(env, - env.frames))) { - return false; - } - return true; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (!this._variables) { - this._variables = !this.rules ? {} : this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - return this._variables; - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (!this.rules) { return null; } - - var _Ruleset = tree.Ruleset, _MixinDefinition = tree.mixin.Definition, - filtRules = [], rules = this.rules, cnt = rules.length, - i, rule; - - for (i = 0; i < cnt; i++) { - rule = rules[i]; - if ((rule instanceof _Ruleset) || (rule instanceof _MixinDefinition)) { - filtRules.push(rule); - } - } - - return filtRules; - }, - prependRule: function (rule) { - var rules = this.rules; - if (rules) { rules.unshift(rule); } else { this.rules = [ rule ]; } - }, - find: function (selector, self) { - self = self || this; - var rules = [], match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key]; } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - match = selector.match(rule.selectors[j]); - if (match) { - if (selector.elements.length > match) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(match)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - this._lookups[key] = rules; - return rules; - }, - genCSS: function (env, output) { - var i, j, - ruleNodes = [], - rulesetNodes = [], - rulesetNodeCnt, - debugInfo, // Line number debugging - rule, - path; - - env.tabLevel = (env.tabLevel || 0); - - if (!this.root) { - env.tabLevel++; - } - - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "), - sep; - - for (i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - if (rule.rules || (rule instanceof tree.Media) || rule instanceof tree.Directive || (this.root && rule instanceof tree.Comment)) { - rulesetNodes.push(rule); - } else { - ruleNodes.push(rule); - } - } - - // If this is the root node, we don't render - // a selector, or {}. - if (!this.root) { - debugInfo = tree.debugInfo(env, this, tabSetStr); - - if (debugInfo) { - output.add(debugInfo); - output.add(tabSetStr); - } - - var paths = this.paths, pathCnt = paths.length, - pathSubCnt; - - sep = env.compress ? ',' : (',\n' + tabSetStr); - - for (i = 0; i < pathCnt; i++) { - path = paths[i]; - if (!(pathSubCnt = path.length)) { continue; } - if (i > 0) { output.add(sep); } - - env.firstSelector = true; - path[0].genCSS(env, output); - - env.firstSelector = false; - for (j = 1; j < pathSubCnt; j++) { - path[j].genCSS(env, output); - } - } - - output.add((env.compress ? '{' : ' {\n') + tabRuleStr); - } - - // Compile rules and rulesets - for (i = 0; i < ruleNodes.length; i++) { - rule = ruleNodes[i]; - - // @page{ directive ends up with root elements inside it, a mix of rules and rulesets - // In this instance we do not know whether it is the last property - if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) { - env.lastRule = true; - } - - if (rule.genCSS) { - rule.genCSS(env, output); - } else if (rule.value) { - output.add(rule.value.toString()); - } - - if (!env.lastRule) { - output.add(env.compress ? '' : ('\n' + tabRuleStr)); - } else { - env.lastRule = false; - } - } - - if (!this.root) { - output.add((env.compress ? '}' : '\n' + tabSetStr + '}')); - env.tabLevel--; - } - - sep = (env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr); - rulesetNodeCnt = rulesetNodes.length; - if (rulesetNodeCnt) { - if (ruleNodes.length && sep) { output.add(sep); } - rulesetNodes[0].genCSS(env, output); - for (i = 1; i < rulesetNodeCnt; i++) { - if (sep) { output.add(sep); } - rulesetNodes[i].genCSS(env, output); - } - } - - if (!output.isEmpty() && !env.compress && this.firstRoot) { - output.add('\n'); - } - }, - - toCSS: tree.toCSS, - - markReferenced: function () { - if (!this.selectors) { - return; - } - for (var s = 0; s < this.selectors.length; s++) { - this.selectors[s].markReferenced(); - } - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for (i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for (j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length === 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', el.index, el.currentFileInfo)); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for (k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = selector.createDerived([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for (i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length === 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for (i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); - -(function (tree) { - -tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) { - this.elements = elements; - this.extendList = extendList; - this.condition = condition; - this.currentFileInfo = currentFileInfo || {}; - this.isReferenced = isReferenced; - if (!condition) { - this.evaldCondition = true; - } -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - if (this.elements) { - this.elements = visitor.visitArray(this.elements); - } - if (this.extendList) { - this.extendList = visitor.visitArray(this.extendList); - } - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - createDerived: function(elements, extendList, evaldCondition) { - evaldCondition = (evaldCondition != null) ? evaldCondition : this.evaldCondition; - var newSelector = new(tree.Selector)(elements, extendList || this.extendList, null, this.index, this.currentFileInfo, this.isReferenced); - newSelector.evaldCondition = evaldCondition; - newSelector.mediaEmpty = this.mediaEmpty; - return newSelector; - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - olen, i; - - other.CacheElements(); - - olen = other._elements.length; - if (olen === 0 || len < olen) { - return 0; - } else { - for (i = 0; i < olen; i++) { - if (elements[i].value !== other._elements[i]) { - return 0; - } - } - } - - return olen; // return number of matched elements - }, - CacheElements: function(){ - var css = '', len, v, i; - - if( !this._elements ){ - - len = this.elements.length; - for(i = 0; i < len; i++){ - - v = this.elements[i]; - css += v.combinator.value; - - if( !v.value.value ){ - css += v.value; - continue; - } - - if( typeof v.value.value !== "string" ){ - css = ''; - break; - } - css += v.value.value; - } - - this._elements = css.match(/[,&#\.\w-]([\w-]|(\\.))*/g); - - if (this._elements) { - if (this._elements[0] === "&") { - this._elements.shift(); - } - - } else { - this._elements = []; - } - - } - }, - isJustParentSelector: function() { - return !this.mediaEmpty && - this.elements.length === 1 && - this.elements[0].value === '&' && - (this.elements[0].combinator.value === ' ' || this.elements[0].combinator.value === ''); - }, - eval: function (env) { - var evaldCondition = this.condition && this.condition.eval(env), - elements = this.elements, extendList = this.extendList; - - elements = elements && elements.map(function (e) { return e.eval(env); }); - extendList = extendList && extendList.map(function(extend) { return extend.eval(env); }); - - return this.createDerived(elements, extendList, evaldCondition); - }, - genCSS: function (env, output) { - var i, element; - if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") { - output.add(' ', this.currentFileInfo, this.index); - } - if (!this._css) { - //TODO caching? speed comparison? - for(i = 0; i < this.elements.length; i++) { - element = this.elements[i]; - element.genCSS(env, output); - } - } - }, - toCSS: tree.toCSS, - markReferenced: function () { - this.isReferenced = true; - }, - getIsReferenced: function() { - return !this.currentFileInfo.reference || this.isReferenced; - }, - getIsOutput: function() { - return this.evaldCondition; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - eval: function () { return this; } -}; - -})(require('../tree')); - -(function (tree) { - -tree.URL = function (val, currentFileInfo, isEvald) { - this.value = val; - this.currentFileInfo = currentFileInfo; - this.isEvald = isEvald; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add("url("); - this.value.genCSS(env, output); - output.add(")"); - }, - toCSS: tree.toCSS, - eval: function (ctx) { - var val = this.value.eval(ctx), - rootpath; - - if (!this.isEvald) { - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - val.value = ctx.normalizePath(val.value); - - // Add url args if enabled - if (ctx.urlArgs) { - if (!val.value.match(/^\s*data:/)) { - var delimiter = val.value.indexOf('?') === -1 ? '?' : '&'; - var urlArgs = delimiter + ctx.urlArgs; - if (val.value.indexOf('#') !== -1) { - val.value = val.value.replace('#', urlArgs + '#'); - } else { - val.value += urlArgs; - } - } - } - } - - return new(tree.URL)(val, this.currentFileInfo, true); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - genCSS: function (env, output) { - var i; - for(i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i+1 < this.value.length) { - output.add((env && env.compress) ? ',' : ', '); - } - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { - this.name = name; - this.index = index; - this.currentFileInfo = currentFileInfo || {}; -}; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, name = this.name; - - if (name.indexOf('@@') === 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - variable = tree.find(env.frames, function (frame) { - var v = frame.variable(name); - if (v) { - return v.value.eval(env); - } - }); - if (variable) { - this.evaluating = false; - return variable; - } else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); - -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // map - filename to contents of all the files - 'contentsIgnoredChars', // map - filename to lines at the begining of each file to ignore - 'relativeUrls', // option - whether to adjust URL's to be relative - 'rootpath', // option - rootpath to append to URL's - 'strictImports', // option - - 'insecure', // option - whether to allow imports from insecure ssl hosts - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true - 'mime', // browser only - mime type for sheet import - 'useFileCache', // browser only - whether to use the per file session cache - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' - absolute path to the entry file - // 'reference' - whether the file should not be output and only output parts that are referenced - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.contentsIgnoredChars) { this.contentsIgnoredChars = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits', // whether units need to evaluate correctly - 'cleancss', // whether to compress with clean-css - 'sourceMap', // whether to output a source map - 'importMultiple', // whether we are currently importing multiple copies - 'urlArgs' // whether to add args into url tokens - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - tree.evalEnv.prototype.normalizePath = function( path ) { - var - segments = path.split("/").reverse(), - segment; - - path = []; - while (segments.length !== 0 ) { - segment = segments.pop(); - switch( segment ) { - case ".": - break; - case "..": - if ((path.length === 0) || (path[path.length - 1] === "..")) { - path.push( segment ); - } else { - path.pop(); - } - break; - default: - path.push( segment ); - break; - } - } - - return path.join("/"); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - }; - -})(require('./tree')); - -(function (tree) { - - var _visitArgs = { visitDeeper: true }, - _hasIndexed = false; - - function _noop(node) { - return node; - } - - function indexNodeTypes(parent, ticker) { - // add .typeIndex to tree node types for lookup table - var key, child; - for (key in parent) { - if (parent.hasOwnProperty(key)) { - child = parent[key]; - switch (typeof child) { - case "function": - // ignore bound functions directly on tree which do not have a prototype - // or aren't nodes - if (child.prototype && child.prototype.type) { - child.prototype.typeIndex = ticker++; - } - break; - case "object": - ticker = indexNodeTypes(child, ticker); - break; - } - } - } - return ticker; - } - - tree.visitor = function(implementation) { - this._implementation = implementation; - this._visitFnCache = []; - - if (!_hasIndexed) { - indexNodeTypes(tree, 1); - _hasIndexed = true; - } - }; - - tree.visitor.prototype = { - visit: function(node) { - if (!node) { - return node; - } - - var nodeTypeIndex = node.typeIndex; - if (!nodeTypeIndex) { - return node; - } - - var visitFnCache = this._visitFnCache, - impl = this._implementation, - aryIndx = nodeTypeIndex << 1, - outAryIndex = aryIndx | 1, - func = visitFnCache[aryIndx], - funcOut = visitFnCache[outAryIndex], - visitArgs = _visitArgs, - fnName; - - visitArgs.visitDeeper = true; - - if (!func) { - fnName = "visit" + node.type; - func = impl[fnName] || _noop; - funcOut = impl[fnName + "Out"] || _noop; - visitFnCache[aryIndx] = func; - visitFnCache[outAryIndex] = funcOut; - } - - if (func !== _noop) { - var newNode = func.call(impl, node, visitArgs); - if (impl.isReplacing) { - node = newNode; - } - } - - if (visitArgs.visitDeeper && node && node.accept) { - node.accept(this); - } - - if (funcOut != _noop) { - funcOut.call(impl, node); - } - - return node; - }, - visitArray: function(nodes, nonReplacing) { - if (!nodes) { - return nodes; - } - - var cnt = nodes.length, i; - - // Non-replacing - if (nonReplacing || !this._implementation.isReplacing) { - for (i = 0; i < cnt; i++) { - this.visit(nodes[i]); - } - return nodes; - } - - // Replacing - var out = []; - for (i = 0; i < cnt; i++) { - var evald = this.visit(nodes[i]); - if (!evald.splice) { - out.push(evald); - } else if (evald.length) { - this.flatten(evald, out); - } - } - return out; - }, - flatten: function(arr, out) { - if (!out) { - out = []; - } - - var cnt, i, item, - nestedCnt, j, nestedItem; - - for (i = 0, cnt = arr.length; i < cnt; i++) { - item = arr[i]; - if (!item.splice) { - out.push(item); - continue; - } - - for (j = 0, nestedCnt = item.length; j < nestedCnt; j++) { - nestedItem = item[j]; - if (!nestedItem.splice) { - out.push(nestedItem); - } else if (nestedItem.length) { - this.flatten(nestedItem, out); - } - } - } - - return out; - } - }; - -})(require('./tree')); -(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv, onceFileDetectionMap, recursionDetector) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - this.onceFileDetectionMap = onceFileDetectionMap || {}; - this.recursionDetector = {}; - if (recursionDetector) { - for(var fullFilename in recursionDetector) { - if (recursionDetector.hasOwnProperty(fullFilename)) { - this.recursionDetector[fullFilename] = true; - } - } - } - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode, - inlineCSS = importNode.options.inline; - - if (!importNode.css || inlineCSS) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - - if (importNode.options.multiple) { - env.importMultiple = true; - } - - this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, importedAtRoot, fullPath) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - - if (!env.importMultiple) { - if (importedAtRoot) { - importNode.skip = true; - } else { - importNode.skip = function() { - if (fullPath in importVisitor.onceFileDetectionMap) { - return true; - } - importVisitor.onceFileDetectionMap[fullPath] = true; - return false; - }; - } - } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - importNode.importedFilename = fullPath; - var duplicateImport = importedAtRoot || fullPath in importVisitor.recursionDetector; - - if (!inlineCSS && (env.importMultiple || !duplicateImport)) { - importVisitor.recursionDetector[fullPath] = true; - new(tree.importVisitor)(importVisitor._importer, subFinish, env, importVisitor.onceFileDetectionMap, importVisitor.recursionDetector) - .run(root); - return; - } - } - - subFinish(); - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree')); -(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1], - paths = [], selectors; - - this.contexts.push(paths); - - if (! rulesetNode.root) { - selectors = rulesetNode.selectors; - if (selectors) { - selectors = selectors.filter(function(selector) { return selector.getIsOutput(); }); - rulesetNode.selectors = selectors.length ? selectors : (selectors = null); - if (selectors) { rulesetNode.joinSelectors(paths, context, selectors); } - } - if (!selectors) { rulesetNode.rules = null; } - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree')); -(function (tree) { - tree.toCSSVisitor = function(env) { - this._visitor = new tree.visitor(this); - this._env = env; - }; - - tree.toCSSVisitor.prototype = { - isReplacing: true, - run: function (root) { - return this._visitor.visit(root); - }, - - visitRule: function (ruleNode, visitArgs) { - if (ruleNode.variable) { - return []; - } - return ruleNode; - }, - - visitMixinDefinition: function (mixinNode, visitArgs) { - // mixin definitions do not get eval'd - this means they keep state - // so we have to clear that state here so it isn't used if toCSS is called twice - mixinNode.frames = []; - return []; - }, - - visitExtend: function (extendNode, visitArgs) { - return []; - }, - - visitComment: function (commentNode, visitArgs) { - if (commentNode.isSilent(this._env)) { - return []; - } - return commentNode; - }, - - visitMedia: function(mediaNode, visitArgs) { - mediaNode.accept(this._visitor); - visitArgs.visitDeeper = false; - - if (!mediaNode.rules.length) { - return []; - } - return mediaNode; - }, - - visitDirective: function(directiveNode, visitArgs) { - if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) { - return []; - } - if (directiveNode.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (this.charset) { - if (directiveNode.debugInfo) { - var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n"); - comment.debugInfo = directiveNode.debugInfo; - return this._visitor.visit(comment); - } - return []; - } - this.charset = true; - } - return directiveNode; - }, - - checkPropertiesInRoot: function(rules) { - var ruleNode; - for(var i = 0; i < rules.length; i++) { - ruleNode = rules[i]; - if (ruleNode instanceof tree.Rule && !ruleNode.variable) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null}; - } - } - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var rule, rulesets = []; - if (rulesetNode.firstRoot) { - this.checkPropertiesInRoot(rulesetNode.rules); - } - if (! rulesetNode.root) { - if (rulesetNode.paths) { - rulesetNode.paths = rulesetNode.paths - .filter(function(p) { - var i; - if (p[0].elements[0].combinator.value === ' ') { - p[0].elements[0].combinator = new(tree.Combinator)(''); - } - for(i = 0; i < p.length; i++) { - if (p[i].getIsReferenced() && p[i].getIsOutput()) { - return true; - } - } - return false; - }); - } - - // Compile rules and rulesets - var nodeRules = rulesetNode.rules, nodeRuleCnt = nodeRules ? nodeRules.length : 0; - for (var i = 0; i < nodeRuleCnt; ) { - rule = nodeRules[i]; - if (rule && rule.rules) { - // visit because we are moving them out from being a child - rulesets.push(this._visitor.visit(rule)); - nodeRules.splice(i, 1); - nodeRuleCnt--; - continue; - } - i++; - } - // accept the visitor to remove rules and refactor itself - // then we can decide now whether we want it or not - if (nodeRuleCnt > 0) { - rulesetNode.accept(this._visitor); - } else { - rulesetNode.rules = null; - } - visitArgs.visitDeeper = false; - - nodeRules = rulesetNode.rules; - if (nodeRules) { - this._mergeRules(nodeRules); - nodeRules = rulesetNode.rules; - } - if (nodeRules) { - this._removeDuplicateRules(nodeRules); - nodeRules = rulesetNode.rules; - } - - // now decide whether we keep the ruleset - if (nodeRules && nodeRules.length > 0 && rulesetNode.paths.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } else { - rulesetNode.accept(this._visitor); - visitArgs.visitDeeper = false; - if (rulesetNode.firstRoot || (rulesetNode.rules && rulesetNode.rules.length > 0)) { - rulesets.splice(0, 0, rulesetNode); - } - } - if (rulesets.length === 1) { - return rulesets[0]; - } - return rulesets; - }, - - _removeDuplicateRules: function(rules) { - if (!rules) { return; } - - // remove duplicates - var ruleCache = {}, - ruleList, rule, i; - - for(i = rules.length - 1; i >= 0 ; i--) { - rule = rules[i]; - if (rule instanceof tree.Rule) { - if (!ruleCache[rule.name]) { - ruleCache[rule.name] = rule; - } else { - ruleList = ruleCache[rule.name]; - if (ruleList instanceof tree.Rule) { - ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)]; - } - var ruleCSS = rule.toCSS(this._env); - if (ruleList.indexOf(ruleCSS) !== -1) { - rules.splice(i, 1); - } else { - ruleList.push(ruleCSS); - } - } - } - } - }, - - _mergeRules: function (rules) { - if (!rules) { return; } - - var groups = {}, - parts, - rule, - key; - - for (var i = 0; i < rules.length; i++) { - rule = rules[i]; - - if ((rule instanceof tree.Rule) && rule.merge) { - key = [rule.name, - rule.important ? "!" : ""].join(","); - - if (!groups[key]) { - groups[key] = []; - } else { - rules.splice(i--, 1); - } - - groups[key].push(rule); - } - } - - Object.keys(groups).map(function (k) { - - function toExpression(values) { - return new (tree.Expression)(values.map(function (p) { - return p.value; - })); - } - - function toValue(values) { - return new (tree.Value)(values.map(function (p) { - return p; - })); - } - - parts = groups[k]; - - if (parts.length > 1) { - rule = parts[0]; - var spacedGroups = []; - var lastSpacedGroup = []; - parts.map(function (p) { - if (p.merge==="+") { - if (lastSpacedGroup.length > 0) { - spacedGroups.push(toExpression(lastSpacedGroup)); - } - lastSpacedGroup = []; - } - lastSpacedGroup.push(p); - }); - spacedGroups.push(toExpression(lastSpacedGroup)); - rule.value = toValue(spacedGroups); - } - }); - } - }; - -})(require('./tree')); -(function (tree) { - /*jshint loopfunc:true */ - - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - var rules = rulesetNode.rules, ruleCnt = rules ? rules.length : 0; - for(i = 0; i < ruleCnt; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rules[i]); - rulesetNode.extendOnEveryPath = true; - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - var paths = rulesetNode.paths; - for(i = 0; i < paths.length; i++) { - var selectorPath = paths[i], - selector = selectorPath[selectorPath.length - 1], - selExtendList = selector.extendList; - - extendList = selExtendList ? selExtendList.slice(0).concat(allSelectorsExtendList) - : allSelectorsExtendList; - - if (extendList) { - extendList = extendList.map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - } - - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if( extend.parent_ids.indexOf( targetExtend.object_id ) >= 0 ){ continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parent_ids = newExtend.parent_ids.concat(targetExtend.parent_ids, extend.parent_ids); - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (rulesetNode.extendOnEveryPath) { continue; } - var extendList = selectorPath[selectorPath.length-1].extendList; - if (extendList && extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator === '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - elementValue1 = elementValue1.value; - elementValue2 = elementValue2.value; - if (elementValue1 instanceof tree.Selector) { - if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) { - return false; - } - for(var i = 0; i currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - newElements = selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)); - - if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) { - path[path.length - 1].elements = - path[path.length - 1].elements.concat(newElements); - } else { - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - newElements - )); - } - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.sourceMapOutput = function (options) { - this._css = []; - this._rootNode = options.rootNode; - this._writeSourceMap = options.writeSourceMap; - this._contentsMap = options.contentsMap; - this._contentsIgnoredCharsMap = options.contentsIgnoredCharsMap; - this._sourceMapFilename = options.sourceMapFilename; - this._outputFilename = options.outputFilename; - this._sourceMapURL = options.sourceMapURL; - if (options.sourceMapBasepath) { - this._sourceMapBasepath = options.sourceMapBasepath.replace(/\\/g, '/'); - } - this._sourceMapRootpath = options.sourceMapRootpath; - this._outputSourceFiles = options.outputSourceFiles; - this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator; - - if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') { - this._sourceMapRootpath += '/'; - } - - this._lineNumber = 0; - this._column = 0; - }; - - tree.sourceMapOutput.prototype.normalizeFilename = function(filename) { - filename = filename.replace(/\\/g, '/'); - - if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) { - filename = filename.substring(this._sourceMapBasepath.length); - if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') { - filename = filename.substring(1); - } - } - return (this._sourceMapRootpath || "") + filename; - }; - - tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) { - - //ignore adding empty strings - if (!chunk) { - return; - } - - var lines, - sourceLines, - columns, - sourceColumns, - i; - - if (fileInfo) { - var inputSource = this._contentsMap[fileInfo.filename]; - - // remove vars/banner added to the top of the file - if (this._contentsIgnoredCharsMap[fileInfo.filename]) { - // adjust the index - index -= this._contentsIgnoredCharsMap[fileInfo.filename]; - if (index < 0) { index = 0; } - // adjust the source - inputSource = inputSource.slice(this._contentsIgnoredCharsMap[fileInfo.filename]); - } - inputSource = inputSource.substring(0, index); - sourceLines = inputSource.split("\n"); - sourceColumns = sourceLines[sourceLines.length-1]; - } - - lines = chunk.split("\n"); - columns = lines[lines.length-1]; - - if (fileInfo) { - if (!mapLines) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column}, - original: { line: sourceLines.length, column: sourceColumns.length}, - source: this.normalizeFilename(fileInfo.filename)}); - } else { - for(i = 0; i < lines.length; i++) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0}, - original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0}, - source: this.normalizeFilename(fileInfo.filename)}); - } - } - } - - if (lines.length === 1) { - this._column += columns.length; - } else { - this._lineNumber += lines.length - 1; - this._column = columns.length; - } - - this._css.push(chunk); - }; - - tree.sourceMapOutput.prototype.isEmpty = function() { - return this._css.length === 0; - }; - - tree.sourceMapOutput.prototype.toCSS = function(env) { - this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null }); - - if (this._outputSourceFiles) { - for(var filename in this._contentsMap) { - if (this._contentsMap.hasOwnProperty(filename)) - { - var source = this._contentsMap[filename]; - if (this._contentsIgnoredCharsMap[filename]) { - source = source.slice(this._contentsIgnoredCharsMap[filename]); - } - this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), source); - } - } - } - - this._rootNode.genCSS(env, this); - - if (this._css.length > 0) { - var sourceMapURL, - sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); - - if (this._sourceMapURL) { - sourceMapURL = this._sourceMapURL; - } else if (this._sourceMapFilename) { - sourceMapURL = this.normalizeFilename(this._sourceMapFilename); - } - - if (this._writeSourceMap) { - this._writeSourceMap(sourceMapContent); - } else { - sourceMapURL = "data:application/json," + encodeURIComponent(sourceMapContent); - } - - if (sourceMapURL) { - this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */"); - } - } - - return this._css.join(''); - }; - -})(require('./tree')); - -// wraps the source-map code in a less module -(function() { - less.modules["source-map"] = function() { - -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ - -/** - * Define a module along with a payload. - * @param {string} moduleName Name for the payload - * @param {ignored} deps Ignored. For compatibility with CommonJS AMD Spec - * @param {function} payload Function with (require, exports, module) params - */ -function define(moduleName, deps, payload) { - if (typeof moduleName != "string") { - throw new TypeError('Expected string, got: ' + moduleName); - } - - if (arguments.length == 2) { - payload = deps; - } - - if (moduleName in define.modules) { - throw new Error("Module already defined: " + moduleName); - } - define.modules[moduleName] = payload; -}; - -/** - * The global store of un-instantiated modules - */ -define.modules = {}; - - -/** - * We invoke require() in the context of a Domain so we can have multiple - * sets of modules running separate from each other. - * This contrasts with JSMs which are singletons, Domains allows us to - * optionally load a CommonJS module twice with separate data each time. - * Perhaps you want 2 command lines with a different set of commands in each, - * for example. - */ -function Domain() { - this.modules = {}; - this._currentModule = null; -} - -(function () { - - /** - * Lookup module names and resolve them by calling the definition function if - * needed. - * There are 2 ways to call this, either with an array of dependencies and a - * callback to call when the dependencies are found (which can happen - * asynchronously in an in-page context) or with a single string an no callback - * where the dependency is resolved synchronously and returned. - * The API is designed to be compatible with the CommonJS AMD spec and - * RequireJS. - * @param {string[]|string} deps A name, or names for the payload - * @param {function|undefined} callback Function to call when the dependencies - * are resolved - * @return {undefined|object} The module required or undefined for - * array/callback method - */ - Domain.prototype.require = function(deps, callback) { - if (Array.isArray(deps)) { - var params = deps.map(function(dep) { - return this.lookup(dep); - }, this); - if (callback) { - callback.apply(null, params); - } - return undefined; - } - else { - return this.lookup(deps); - } - }; - - function normalize(path) { - var bits = path.split('/'); - var i = 1; - while (i < bits.length) { - if (bits[i] === '..') { - bits.splice(i-1, 1); - } else if (bits[i] === '.') { - bits.splice(i, 1); - } else { - i++; - } - } - return bits.join('/'); - } - - function join(a, b) { - a = a.trim(); - b = b.trim(); - if (/^\//.test(b)) { - return b; - } else { - return a.replace(/\/*$/, '/') + b; - } - } - - function dirname(path) { - var bits = path.split('/'); - bits.pop(); - return bits.join('/'); - } - - /** - * Lookup module names and resolve them by calling the definition function if - * needed. - * @param {string} moduleName A name for the payload to lookup - * @return {object} The module specified by aModuleName or null if not found. - */ - Domain.prototype.lookup = function(moduleName) { - if (/^\./.test(moduleName)) { - moduleName = normalize(join(dirname(this._currentModule), moduleName)); - } - - if (moduleName in this.modules) { - var module = this.modules[moduleName]; - return module; - } - - if (!(moduleName in define.modules)) { - throw new Error("Module not defined: " + moduleName); - } - - var module = define.modules[moduleName]; - - if (typeof module == "function") { - var exports = {}; - var previousModule = this._currentModule; - this._currentModule = moduleName; - module(this.require.bind(this), exports, { id: moduleName, uri: "" }); - this._currentModule = previousModule; - module = exports; - } - - // cache the resulting module object for next time - this.modules[moduleName] = module; - - return module; - }; - -}()); - -define.Domain = Domain; -define.globalDomain = new Domain(); -var require = define.globalDomain.require.bind(define.globalDomain); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/source-map-generator', ['require', 'exports', 'module' , 'source-map/base64-vlq', 'source-map/util', 'source-map/array-set'], function(require, exports, module) { - - var base64VLQ = require('./base64-vlq'); - var util = require('./util'); - var ArraySet = require('./array-set').ArraySet; - - /** - * An instance of the SourceMapGenerator represents a source map which is - * being built incrementally. To create a new one, you must pass an object - * with the following properties: - * - * - file: The filename of the generated source. - * - sourceRoot: An optional root for all URLs in this source map. - */ - function SourceMapGenerator(aArgs) { - this._file = util.getArg(aArgs, 'file'); - this._sourceRoot = util.getArg(aArgs, 'sourceRoot', null); - this._sources = new ArraySet(); - this._names = new ArraySet(); - this._mappings = []; - this._sourcesContents = null; - } - - SourceMapGenerator.prototype._version = 3; - - /** - * Creates a new SourceMapGenerator based on a SourceMapConsumer - * - * @param aSourceMapConsumer The SourceMap. - */ - SourceMapGenerator.fromSourceMap = - function SourceMapGenerator_fromSourceMap(aSourceMapConsumer) { - var sourceRoot = aSourceMapConsumer.sourceRoot; - var generator = new SourceMapGenerator({ - file: aSourceMapConsumer.file, - sourceRoot: sourceRoot - }); - aSourceMapConsumer.eachMapping(function (mapping) { - var newMapping = { - generated: { - line: mapping.generatedLine, - column: mapping.generatedColumn - } - }; - - if (mapping.source) { - newMapping.source = mapping.source; - if (sourceRoot) { - newMapping.source = util.relative(sourceRoot, newMapping.source); - } - - newMapping.original = { - line: mapping.originalLine, - column: mapping.originalColumn - }; - - if (mapping.name) { - newMapping.name = mapping.name; - } - } - - generator.addMapping(newMapping); - }); - aSourceMapConsumer.sources.forEach(function (sourceFile) { - var content = aSourceMapConsumer.sourceContentFor(sourceFile); - if (content) { - generator.setSourceContent(sourceFile, content); - } - }); - return generator; - }; - - /** - * Add a single mapping from original source line and column to the generated - * source's line and column for this source map being created. The mapping - * object should have the following properties: - * - * - generated: An object with the generated line and column positions. - * - original: An object with the original line and column positions. - * - source: The original source file (relative to the sourceRoot). - * - name: An optional original token name for this mapping. - */ - SourceMapGenerator.prototype.addMapping = - function SourceMapGenerator_addMapping(aArgs) { - var generated = util.getArg(aArgs, 'generated'); - var original = util.getArg(aArgs, 'original', null); - var source = util.getArg(aArgs, 'source', null); - var name = util.getArg(aArgs, 'name', null); - - this._validateMapping(generated, original, source, name); - - if (source && !this._sources.has(source)) { - this._sources.add(source); - } - - if (name && !this._names.has(name)) { - this._names.add(name); - } - - this._mappings.push({ - generatedLine: generated.line, - generatedColumn: generated.column, - originalLine: original != null && original.line, - originalColumn: original != null && original.column, - source: source, - name: name - }); - }; - - /** - * Set the source content for a source file. - */ - SourceMapGenerator.prototype.setSourceContent = - function SourceMapGenerator_setSourceContent(aSourceFile, aSourceContent) { - var source = aSourceFile; - if (this._sourceRoot) { - source = util.relative(this._sourceRoot, source); - } - - if (aSourceContent !== null) { - // Add the source content to the _sourcesContents map. - // Create a new _sourcesContents map if the property is null. - if (!this._sourcesContents) { - this._sourcesContents = {}; - } - this._sourcesContents[util.toSetString(source)] = aSourceContent; - } else { - // Remove the source file from the _sourcesContents map. - // If the _sourcesContents map is empty, set the property to null. - delete this._sourcesContents[util.toSetString(source)]; - if (Object.keys(this._sourcesContents).length === 0) { - this._sourcesContents = null; - } - } - }; - - /** - * Applies the mappings of a sub-source-map for a specific source file to the - * source map being generated. Each mapping to the supplied source file is - * rewritten using the supplied source map. Note: The resolution for the - * resulting mappings is the minimium of this map and the supplied map. - * - * @param aSourceMapConsumer The source map to be applied. - * @param aSourceFile Optional. The filename of the source file. - * If omitted, SourceMapConsumer's file property will be used. - */ - SourceMapGenerator.prototype.applySourceMap = - function SourceMapGenerator_applySourceMap(aSourceMapConsumer, aSourceFile) { - // If aSourceFile is omitted, we will use the file property of the SourceMap - if (!aSourceFile) { - aSourceFile = aSourceMapConsumer.file; - } - var sourceRoot = this._sourceRoot; - // Make "aSourceFile" relative if an absolute Url is passed. - if (sourceRoot) { - aSourceFile = util.relative(sourceRoot, aSourceFile); - } - // Applying the SourceMap can add and remove items from the sources and - // the names array. - var newSources = new ArraySet(); - var newNames = new ArraySet(); - - // Find mappings for the "aSourceFile" - this._mappings.forEach(function (mapping) { - if (mapping.source === aSourceFile && mapping.originalLine) { - // Check if it can be mapped by the source map, then update the mapping. - var original = aSourceMapConsumer.originalPositionFor({ - line: mapping.originalLine, - column: mapping.originalColumn - }); - if (original.source !== null) { - // Copy mapping - if (sourceRoot) { - mapping.source = util.relative(sourceRoot, original.source); - } else { - mapping.source = original.source; - } - mapping.originalLine = original.line; - mapping.originalColumn = original.column; - if (original.name !== null && mapping.name !== null) { - // Only use the identifier name if it's an identifier - // in both SourceMaps - mapping.name = original.name; - } - } - } - - var source = mapping.source; - if (source && !newSources.has(source)) { - newSources.add(source); - } - - var name = mapping.name; - if (name && !newNames.has(name)) { - newNames.add(name); - } - - }, this); - this._sources = newSources; - this._names = newNames; - - // Copy sourcesContents of applied map. - aSourceMapConsumer.sources.forEach(function (sourceFile) { - var content = aSourceMapConsumer.sourceContentFor(sourceFile); - if (content) { - if (sourceRoot) { - sourceFile = util.relative(sourceRoot, sourceFile); - } - this.setSourceContent(sourceFile, content); - } - }, this); - }; - - /** - * A mapping can have one of the three levels of data: - * - * 1. Just the generated position. - * 2. The Generated position, original position, and original source. - * 3. Generated and original position, original source, as well as a name - * token. - * - * To maintain consistency, we validate that any new mapping being added falls - * in to one of these categories. - */ - SourceMapGenerator.prototype._validateMapping = - function SourceMapGenerator_validateMapping(aGenerated, aOriginal, aSource, - aName) { - if (aGenerated && 'line' in aGenerated && 'column' in aGenerated - && aGenerated.line > 0 && aGenerated.column >= 0 - && !aOriginal && !aSource && !aName) { - // Case 1. - return; - } - else if (aGenerated && 'line' in aGenerated && 'column' in aGenerated - && aOriginal && 'line' in aOriginal && 'column' in aOriginal - && aGenerated.line > 0 && aGenerated.column >= 0 - && aOriginal.line > 0 && aOriginal.column >= 0 - && aSource) { - // Cases 2 and 3. - return; - } - else { - throw new Error('Invalid mapping: ' + JSON.stringify({ - generated: aGenerated, - source: aSource, - original: aOriginal, - name: aName - })); - } - }; - - /** - * Serialize the accumulated mappings in to the stream of base 64 VLQs - * specified by the source map format. - */ - SourceMapGenerator.prototype._serializeMappings = - function SourceMapGenerator_serializeMappings() { - var previousGeneratedColumn = 0; - var previousGeneratedLine = 1; - var previousOriginalColumn = 0; - var previousOriginalLine = 0; - var previousName = 0; - var previousSource = 0; - var result = ''; - var mapping; - - // The mappings must be guaranteed to be in sorted order before we start - // serializing them or else the generated line numbers (which are defined - // via the ';' separators) will be all messed up. Note: it might be more - // performant to maintain the sorting as we insert them, rather than as we - // serialize them, but the big O is the same either way. - this._mappings.sort(util.compareByGeneratedPositions); - - for (var i = 0, len = this._mappings.length; i < len; i++) { - mapping = this._mappings[i]; - - if (mapping.generatedLine !== previousGeneratedLine) { - previousGeneratedColumn = 0; - while (mapping.generatedLine !== previousGeneratedLine) { - result += ';'; - previousGeneratedLine++; - } - } - else { - if (i > 0) { - if (!util.compareByGeneratedPositions(mapping, this._mappings[i - 1])) { - continue; - } - result += ','; - } - } - - result += base64VLQ.encode(mapping.generatedColumn - - previousGeneratedColumn); - previousGeneratedColumn = mapping.generatedColumn; - - if (mapping.source) { - result += base64VLQ.encode(this._sources.indexOf(mapping.source) - - previousSource); - previousSource = this._sources.indexOf(mapping.source); - - // lines are stored 0-based in SourceMap spec version 3 - result += base64VLQ.encode(mapping.originalLine - 1 - - previousOriginalLine); - previousOriginalLine = mapping.originalLine - 1; - - result += base64VLQ.encode(mapping.originalColumn - - previousOriginalColumn); - previousOriginalColumn = mapping.originalColumn; - - if (mapping.name) { - result += base64VLQ.encode(this._names.indexOf(mapping.name) - - previousName); - previousName = this._names.indexOf(mapping.name); - } - } - } - - return result; - }; - - SourceMapGenerator.prototype._generateSourcesContent = - function SourceMapGenerator_generateSourcesContent(aSources, aSourceRoot) { - return aSources.map(function (source) { - if (!this._sourcesContents) { - return null; - } - if (aSourceRoot) { - source = util.relative(aSourceRoot, source); - } - var key = util.toSetString(source); - return Object.prototype.hasOwnProperty.call(this._sourcesContents, - key) - ? this._sourcesContents[key] - : null; - }, this); - }; - - /** - * Externalize the source map. - */ - SourceMapGenerator.prototype.toJSON = - function SourceMapGenerator_toJSON() { - var map = { - version: this._version, - file: this._file, - sources: this._sources.toArray(), - names: this._names.toArray(), - mappings: this._serializeMappings() - }; - if (this._sourceRoot) { - map.sourceRoot = this._sourceRoot; - } - if (this._sourcesContents) { - map.sourcesContent = this._generateSourcesContent(map.sources, map.sourceRoot); - } - - return map; - }; - - /** - * Render the source map being generated to a string. - */ - SourceMapGenerator.prototype.toString = - function SourceMapGenerator_toString() { - return JSON.stringify(this); - }; - - exports.SourceMapGenerator = SourceMapGenerator; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - * - * Based on the Base 64 VLQ implementation in Closure Compiler: - * https://code.google.com/p/closure-compiler/source/browse/trunk/src/com/google/debugging/sourcemap/Base64VLQ.java - * - * Copyright 2011 The Closure Compiler Authors. All rights reserved. - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following - * disclaimer in the documentation and/or other materials provided - * with the distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ -define('source-map/base64-vlq', ['require', 'exports', 'module' , 'source-map/base64'], function(require, exports, module) { - - var base64 = require('./base64'); - - // A single base 64 digit can contain 6 bits of data. For the base 64 variable - // length quantities we use in the source map spec, the first bit is the sign, - // the next four bits are the actual value, and the 6th bit is the - // continuation bit. The continuation bit tells us whether there are more - // digits in this value following this digit. - // - // Continuation - // | Sign - // | | - // V V - // 101011 - - var VLQ_BASE_SHIFT = 5; - - // binary: 100000 - var VLQ_BASE = 1 << VLQ_BASE_SHIFT; - - // binary: 011111 - var VLQ_BASE_MASK = VLQ_BASE - 1; - - // binary: 100000 - var VLQ_CONTINUATION_BIT = VLQ_BASE; - - /** - * Converts from a two-complement value to a value where the sign bit is - * is placed in the least significant bit. For example, as decimals: - * 1 becomes 2 (10 binary), -1 becomes 3 (11 binary) - * 2 becomes 4 (100 binary), -2 becomes 5 (101 binary) - */ - function toVLQSigned(aValue) { - return aValue < 0 - ? ((-aValue) << 1) + 1 - : (aValue << 1) + 0; - } - - /** - * Converts to a two-complement value from a value where the sign bit is - * is placed in the least significant bit. For example, as decimals: - * 2 (10 binary) becomes 1, 3 (11 binary) becomes -1 - * 4 (100 binary) becomes 2, 5 (101 binary) becomes -2 - */ - function fromVLQSigned(aValue) { - var isNegative = (aValue & 1) === 1; - var shifted = aValue >> 1; - return isNegative - ? -shifted - : shifted; - } - - /** - * Returns the base 64 VLQ encoded value. - */ - exports.encode = function base64VLQ_encode(aValue) { - var encoded = ""; - var digit; - - var vlq = toVLQSigned(aValue); - - do { - digit = vlq & VLQ_BASE_MASK; - vlq >>>= VLQ_BASE_SHIFT; - if (vlq > 0) { - // There are still more digits in this value, so we must make sure the - // continuation bit is marked. - digit |= VLQ_CONTINUATION_BIT; - } - encoded += base64.encode(digit); - } while (vlq > 0); - - return encoded; - }; - - /** - * Decodes the next base 64 VLQ value from the given string and returns the - * value and the rest of the string. - */ - exports.decode = function base64VLQ_decode(aStr) { - var i = 0; - var strLen = aStr.length; - var result = 0; - var shift = 0; - var continuation, digit; - - do { - if (i >= strLen) { - throw new Error("Expected more digits in base 64 VLQ value."); - } - digit = base64.decode(aStr.charAt(i++)); - continuation = !!(digit & VLQ_CONTINUATION_BIT); - digit &= VLQ_BASE_MASK; - result = result + (digit << shift); - shift += VLQ_BASE_SHIFT; - } while (continuation); - - return { - value: fromVLQSigned(result), - rest: aStr.slice(i) - }; - }; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/base64', ['require', 'exports', 'module' , ], function(require, exports, module) { - - var charToIntMap = {}; - var intToCharMap = {}; - - 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/' - .split('') - .forEach(function (ch, index) { - charToIntMap[ch] = index; - intToCharMap[index] = ch; - }); - - /** - * Encode an integer in the range of 0 to 63 to a single base 64 digit. - */ - exports.encode = function base64_encode(aNumber) { - if (aNumber in intToCharMap) { - return intToCharMap[aNumber]; - } - throw new TypeError("Must be between 0 and 63: " + aNumber); - }; - - /** - * Decode a single base 64 digit to an integer. - */ - exports.decode = function base64_decode(aChar) { - if (aChar in charToIntMap) { - return charToIntMap[aChar]; - } - throw new TypeError("Not a valid base 64 digit: " + aChar); - }; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/util', ['require', 'exports', 'module' , ], function(require, exports, module) { - - /** - * This is a helper function for getting values from parameter/options - * objects. - * - * @param args The object we are extracting values from - * @param name The name of the property we are getting. - * @param defaultValue An optional value to return if the property is missing - * from the object. If this is not specified and the property is missing, an - * error will be thrown. - */ - function getArg(aArgs, aName, aDefaultValue) { - if (aName in aArgs) { - return aArgs[aName]; - } else if (arguments.length === 3) { - return aDefaultValue; - } else { - throw new Error('"' + aName + '" is a required argument.'); - } - } - exports.getArg = getArg; - - var urlRegexp = /([\w+\-.]+):\/\/((\w+:\w+)@)?([\w.]+)?(:(\d+))?(\S+)?/; - var dataUrlRegexp = /^data:.+\,.+/; - - function urlParse(aUrl) { - var match = aUrl.match(urlRegexp); - if (!match) { - return null; - } - return { - scheme: match[1], - auth: match[3], - host: match[4], - port: match[6], - path: match[7] - }; - } - exports.urlParse = urlParse; - - function urlGenerate(aParsedUrl) { - var url = aParsedUrl.scheme + "://"; - if (aParsedUrl.auth) { - url += aParsedUrl.auth + "@" - } - if (aParsedUrl.host) { - url += aParsedUrl.host; - } - if (aParsedUrl.port) { - url += ":" + aParsedUrl.port - } - if (aParsedUrl.path) { - url += aParsedUrl.path; - } - return url; - } - exports.urlGenerate = urlGenerate; - - function join(aRoot, aPath) { - var url; - - if (aPath.match(urlRegexp) || aPath.match(dataUrlRegexp)) { - return aPath; - } - - if (aPath.charAt(0) === '/' && (url = urlParse(aRoot))) { - url.path = aPath; - return urlGenerate(url); - } - - return aRoot.replace(/\/$/, '') + '/' + aPath; - } - exports.join = join; - - /** - * Because behavior goes wacky when you set `__proto__` on objects, we - * have to prefix all the strings in our set with an arbitrary character. - * - * See https://github.com/mozilla/source-map/pull/31 and - * https://github.com/mozilla/source-map/issues/30 - * - * @param String aStr - */ - function toSetString(aStr) { - return '$' + aStr; - } - exports.toSetString = toSetString; - - function fromSetString(aStr) { - return aStr.substr(1); - } - exports.fromSetString = fromSetString; - - function relative(aRoot, aPath) { - aRoot = aRoot.replace(/\/$/, ''); - - var url = urlParse(aRoot); - if (aPath.charAt(0) == "/" && url && url.path == "/") { - return aPath.slice(1); - } - - return aPath.indexOf(aRoot + '/') === 0 - ? aPath.substr(aRoot.length + 1) - : aPath; - } - exports.relative = relative; - - function strcmp(aStr1, aStr2) { - var s1 = aStr1 || ""; - var s2 = aStr2 || ""; - return (s1 > s2) - (s1 < s2); - } - - /** - * Comparator between two mappings where the original positions are compared. - * - * Optionally pass in `true` as `onlyCompareGenerated` to consider two - * mappings with the same original source/line/column, but different generated - * line and column the same. Useful when searching for a mapping with a - * stubbed out mapping. - */ - function compareByOriginalPositions(mappingA, mappingB, onlyCompareOriginal) { - var cmp; - - cmp = strcmp(mappingA.source, mappingB.source); - if (cmp) { - return cmp; - } - - cmp = mappingA.originalLine - mappingB.originalLine; - if (cmp) { - return cmp; - } - - cmp = mappingA.originalColumn - mappingB.originalColumn; - if (cmp || onlyCompareOriginal) { - return cmp; - } - - cmp = strcmp(mappingA.name, mappingB.name); - if (cmp) { - return cmp; - } - - cmp = mappingA.generatedLine - mappingB.generatedLine; - if (cmp) { - return cmp; - } - - return mappingA.generatedColumn - mappingB.generatedColumn; - }; - exports.compareByOriginalPositions = compareByOriginalPositions; - - /** - * Comparator between two mappings where the generated positions are - * compared. - * - * Optionally pass in `true` as `onlyCompareGenerated` to consider two - * mappings with the same generated line and column, but different - * source/name/original line and column the same. Useful when searching for a - * mapping with a stubbed out mapping. - */ - function compareByGeneratedPositions(mappingA, mappingB, onlyCompareGenerated) { - var cmp; - - cmp = mappingA.generatedLine - mappingB.generatedLine; - if (cmp) { - return cmp; - } - - cmp = mappingA.generatedColumn - mappingB.generatedColumn; - if (cmp || onlyCompareGenerated) { - return cmp; - } - - cmp = strcmp(mappingA.source, mappingB.source); - if (cmp) { - return cmp; - } - - cmp = mappingA.originalLine - mappingB.originalLine; - if (cmp) { - return cmp; - } - - cmp = mappingA.originalColumn - mappingB.originalColumn; - if (cmp) { - return cmp; - } - - return strcmp(mappingA.name, mappingB.name); - }; - exports.compareByGeneratedPositions = compareByGeneratedPositions; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/array-set', ['require', 'exports', 'module' , 'source-map/util'], function(require, exports, module) { - - var util = require('./util'); - - /** - * A data structure which is a combination of an array and a set. Adding a new - * member is O(1), testing for membership is O(1), and finding the index of an - * element is O(1). Removing elements from the set is not supported. Only - * strings are supported for membership. - */ - function ArraySet() { - this._array = []; - this._set = {}; - } - - /** - * Static method for creating ArraySet instances from an existing array. - */ - ArraySet.fromArray = function ArraySet_fromArray(aArray, aAllowDuplicates) { - var set = new ArraySet(); - for (var i = 0, len = aArray.length; i < len; i++) { - set.add(aArray[i], aAllowDuplicates); - } - return set; - }; - - /** - * Add the given string to this set. - * - * @param String aStr - */ - ArraySet.prototype.add = function ArraySet_add(aStr, aAllowDuplicates) { - var isDuplicate = this.has(aStr); - var idx = this._array.length; - if (!isDuplicate || aAllowDuplicates) { - this._array.push(aStr); - } - if (!isDuplicate) { - this._set[util.toSetString(aStr)] = idx; - } - }; - - /** - * Is the given string a member of this set? - * - * @param String aStr - */ - ArraySet.prototype.has = function ArraySet_has(aStr) { - return Object.prototype.hasOwnProperty.call(this._set, - util.toSetString(aStr)); - }; - - /** - * What is the index of the given string in the array? - * - * @param String aStr - */ - ArraySet.prototype.indexOf = function ArraySet_indexOf(aStr) { - if (this.has(aStr)) { - return this._set[util.toSetString(aStr)]; - } - throw new Error('"' + aStr + '" is not in the set.'); - }; - - /** - * What is the element at the given index? - * - * @param Number aIdx - */ - ArraySet.prototype.at = function ArraySet_at(aIdx) { - if (aIdx >= 0 && aIdx < this._array.length) { - return this._array[aIdx]; - } - throw new Error('No element indexed by ' + aIdx); - }; - - /** - * Returns the array representation of this set (which has the proper indices - * indicated by indexOf). Note that this is a copy of the internal array used - * for storing the members so that no one can mess with internal state. - */ - ArraySet.prototype.toArray = function ArraySet_toArray() { - return this._array.slice(); - }; - - exports.ArraySet = ArraySet; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/source-map-consumer', ['require', 'exports', 'module' , 'source-map/util', 'source-map/binary-search', 'source-map/array-set', 'source-map/base64-vlq'], function(require, exports, module) { - - var util = require('./util'); - var binarySearch = require('./binary-search'); - var ArraySet = require('./array-set').ArraySet; - var base64VLQ = require('./base64-vlq'); - - /** - * A SourceMapConsumer instance represents a parsed source map which we can - * query for information about the original file positions by giving it a file - * position in the generated source. - * - * The only parameter is the raw source map (either as a JSON string, or - * already parsed to an object). According to the spec, source maps have the - * following attributes: - * - * - version: Which version of the source map spec this map is following. - * - sources: An array of URLs to the original source files. - * - names: An array of identifiers which can be referrenced by individual mappings. - * - sourceRoot: Optional. The URL root from which all sources are relative. - * - sourcesContent: Optional. An array of contents of the original source files. - * - mappings: A string of base64 VLQs which contain the actual mappings. - * - file: The generated file this source map is associated with. - * - * Here is an example source map, taken from the source map spec[0]: - * - * { - * version : 3, - * file: "out.js", - * sourceRoot : "", - * sources: ["foo.js", "bar.js"], - * names: ["src", "maps", "are", "fun"], - * mappings: "AA,AB;;ABCDE;" - * } - * - * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit?pli=1# - */ - function SourceMapConsumer(aSourceMap) { - var sourceMap = aSourceMap; - if (typeof aSourceMap === 'string') { - sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, '')); - } - - var version = util.getArg(sourceMap, 'version'); - var sources = util.getArg(sourceMap, 'sources'); - // Sass 3.3 leaves out the 'names' array, so we deviate from the spec (which - // requires the array) to play nice here. - var names = util.getArg(sourceMap, 'names', []); - var sourceRoot = util.getArg(sourceMap, 'sourceRoot', null); - var sourcesContent = util.getArg(sourceMap, 'sourcesContent', null); - var mappings = util.getArg(sourceMap, 'mappings'); - var file = util.getArg(sourceMap, 'file', null); - - // Once again, Sass deviates from the spec and supplies the version as a - // string rather than a number, so we use loose equality checking here. - if (version != this._version) { - throw new Error('Unsupported version: ' + version); - } - - // Pass `true` below to allow duplicate names and sources. While source maps - // are intended to be compressed and deduplicated, the TypeScript compiler - // sometimes generates source maps with duplicates in them. See Github issue - // #72 and bugzil.la/889492. - this._names = ArraySet.fromArray(names, true); - this._sources = ArraySet.fromArray(sources, true); - - this.sourceRoot = sourceRoot; - this.sourcesContent = sourcesContent; - this._mappings = mappings; - this.file = file; - } - - /** - * Create a SourceMapConsumer from a SourceMapGenerator. - * - * @param SourceMapGenerator aSourceMap - * The source map that will be consumed. - * @returns SourceMapConsumer - */ - SourceMapConsumer.fromSourceMap = - function SourceMapConsumer_fromSourceMap(aSourceMap) { - var smc = Object.create(SourceMapConsumer.prototype); - - smc._names = ArraySet.fromArray(aSourceMap._names.toArray(), true); - smc._sources = ArraySet.fromArray(aSourceMap._sources.toArray(), true); - smc.sourceRoot = aSourceMap._sourceRoot; - smc.sourcesContent = aSourceMap._generateSourcesContent(smc._sources.toArray(), - smc.sourceRoot); - smc.file = aSourceMap._file; - - smc.__generatedMappings = aSourceMap._mappings.slice() - .sort(util.compareByGeneratedPositions); - smc.__originalMappings = aSourceMap._mappings.slice() - .sort(util.compareByOriginalPositions); - - return smc; - }; - - /** - * The version of the source mapping spec that we are consuming. - */ - SourceMapConsumer.prototype._version = 3; - - /** - * The list of original sources. - */ - Object.defineProperty(SourceMapConsumer.prototype, 'sources', { - get: function () { - return this._sources.toArray().map(function (s) { - return this.sourceRoot ? util.join(this.sourceRoot, s) : s; - }, this); - } - }); - - // `__generatedMappings` and `__originalMappings` are arrays that hold the - // parsed mapping coordinates from the source map's "mappings" attribute. They - // are lazily instantiated, accessed via the `_generatedMappings` and - // `_originalMappings` getters respectively, and we only parse the mappings - // and create these arrays once queried for a source location. We jump through - // these hoops because there can be many thousands of mappings, and parsing - // them is expensive, so we only want to do it if we must. - // - // Each object in the arrays is of the form: - // - // { - // generatedLine: The line number in the generated code, - // generatedColumn: The column number in the generated code, - // source: The path to the original source file that generated this - // chunk of code, - // originalLine: The line number in the original source that - // corresponds to this chunk of generated code, - // originalColumn: The column number in the original source that - // corresponds to this chunk of generated code, - // name: The name of the original symbol which generated this chunk of - // code. - // } - // - // All properties except for `generatedLine` and `generatedColumn` can be - // `null`. - // - // `_generatedMappings` is ordered by the generated positions. - // - // `_originalMappings` is ordered by the original positions. - - SourceMapConsumer.prototype.__generatedMappings = null; - Object.defineProperty(SourceMapConsumer.prototype, '_generatedMappings', { - get: function () { - if (!this.__generatedMappings) { - this.__generatedMappings = []; - this.__originalMappings = []; - this._parseMappings(this._mappings, this.sourceRoot); - } - - return this.__generatedMappings; - } - }); - - SourceMapConsumer.prototype.__originalMappings = null; - Object.defineProperty(SourceMapConsumer.prototype, '_originalMappings', { - get: function () { - if (!this.__originalMappings) { - this.__generatedMappings = []; - this.__originalMappings = []; - this._parseMappings(this._mappings, this.sourceRoot); - } - - return this.__originalMappings; - } - }); - - /** - * Parse the mappings in a string in to a data structure which we can easily - * query (the ordered arrays in the `this.__generatedMappings` and - * `this.__originalMappings` properties). - */ - SourceMapConsumer.prototype._parseMappings = - function SourceMapConsumer_parseMappings(aStr, aSourceRoot) { - var generatedLine = 1; - var previousGeneratedColumn = 0; - var previousOriginalLine = 0; - var previousOriginalColumn = 0; - var previousSource = 0; - var previousName = 0; - var mappingSeparator = /^[,;]/; - var str = aStr; - var mapping; - var temp; - - while (str.length > 0) { - if (str.charAt(0) === ';') { - generatedLine++; - str = str.slice(1); - previousGeneratedColumn = 0; - } - else if (str.charAt(0) === ',') { - str = str.slice(1); - } - else { - mapping = {}; - mapping.generatedLine = generatedLine; - - // Generated column. - temp = base64VLQ.decode(str); - mapping.generatedColumn = previousGeneratedColumn + temp.value; - previousGeneratedColumn = mapping.generatedColumn; - str = temp.rest; - - if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) { - // Original source. - temp = base64VLQ.decode(str); - mapping.source = this._sources.at(previousSource + temp.value); - previousSource += temp.value; - str = temp.rest; - if (str.length === 0 || mappingSeparator.test(str.charAt(0))) { - throw new Error('Found a source, but no line and column'); - } - - // Original line. - temp = base64VLQ.decode(str); - mapping.originalLine = previousOriginalLine + temp.value; - previousOriginalLine = mapping.originalLine; - // Lines are stored 0-based - mapping.originalLine += 1; - str = temp.rest; - if (str.length === 0 || mappingSeparator.test(str.charAt(0))) { - throw new Error('Found a source and line, but no column'); - } - - // Original column. - temp = base64VLQ.decode(str); - mapping.originalColumn = previousOriginalColumn + temp.value; - previousOriginalColumn = mapping.originalColumn; - str = temp.rest; - - if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) { - // Original name. - temp = base64VLQ.decode(str); - mapping.name = this._names.at(previousName + temp.value); - previousName += temp.value; - str = temp.rest; - } - } - - this.__generatedMappings.push(mapping); - if (typeof mapping.originalLine === 'number') { - this.__originalMappings.push(mapping); - } - } - } - - this.__originalMappings.sort(util.compareByOriginalPositions); - }; - - /** - * Find the mapping that best matches the hypothetical "needle" mapping that - * we are searching for in the given "haystack" of mappings. - */ - SourceMapConsumer.prototype._findMapping = - function SourceMapConsumer_findMapping(aNeedle, aMappings, aLineName, - aColumnName, aComparator) { - // To return the position we are searching for, we must first find the - // mapping for the given position and then return the opposite position it - // points to. Because the mappings are sorted, we can use binary search to - // find the best mapping. - - if (aNeedle[aLineName] <= 0) { - throw new TypeError('Line must be greater than or equal to 1, got ' - + aNeedle[aLineName]); - } - if (aNeedle[aColumnName] < 0) { - throw new TypeError('Column must be greater than or equal to 0, got ' - + aNeedle[aColumnName]); - } - - return binarySearch.search(aNeedle, aMappings, aComparator); - }; - - /** - * Returns the original source, line, and column information for the generated - * source's line and column positions provided. The only argument is an object - * with the following properties: - * - * - line: The line number in the generated source. - * - column: The column number in the generated source. - * - * and an object is returned with the following properties: - * - * - source: The original source file, or null. - * - line: The line number in the original source, or null. - * - column: The column number in the original source, or null. - * - name: The original identifier, or null. - */ - SourceMapConsumer.prototype.originalPositionFor = - function SourceMapConsumer_originalPositionFor(aArgs) { - var needle = { - generatedLine: util.getArg(aArgs, 'line'), - generatedColumn: util.getArg(aArgs, 'column') - }; - - var mapping = this._findMapping(needle, - this._generatedMappings, - "generatedLine", - "generatedColumn", - util.compareByGeneratedPositions); - - if (mapping) { - var source = util.getArg(mapping, 'source', null); - if (source && this.sourceRoot) { - source = util.join(this.sourceRoot, source); - } - return { - source: source, - line: util.getArg(mapping, 'originalLine', null), - column: util.getArg(mapping, 'originalColumn', null), - name: util.getArg(mapping, 'name', null) - }; - } - - return { - source: null, - line: null, - column: null, - name: null - }; - }; - - /** - * Returns the original source content. The only argument is the url of the - * original source file. Returns null if no original source content is - * availible. - */ - SourceMapConsumer.prototype.sourceContentFor = - function SourceMapConsumer_sourceContentFor(aSource) { - if (!this.sourcesContent) { - return null; - } - - if (this.sourceRoot) { - aSource = util.relative(this.sourceRoot, aSource); - } - - if (this._sources.has(aSource)) { - return this.sourcesContent[this._sources.indexOf(aSource)]; - } - - var url; - if (this.sourceRoot - && (url = util.urlParse(this.sourceRoot))) { - // XXX: file:// URIs and absolute paths lead to unexpected behavior for - // many users. We can help them out when they expect file:// URIs to - // behave like it would if they were running a local HTTP server. See - // https://bugzilla.mozilla.org/show_bug.cgi?id=885597. - var fileUriAbsPath = aSource.replace(/^file:\/\//, ""); - if (url.scheme == "file" - && this._sources.has(fileUriAbsPath)) { - return this.sourcesContent[this._sources.indexOf(fileUriAbsPath)] - } - - if ((!url.path || url.path == "/") - && this._sources.has("/" + aSource)) { - return this.sourcesContent[this._sources.indexOf("/" + aSource)]; - } - } - - throw new Error('"' + aSource + '" is not in the SourceMap.'); - }; - - /** - * Returns the generated line and column information for the original source, - * line, and column positions provided. The only argument is an object with - * the following properties: - * - * - source: The filename of the original source. - * - line: The line number in the original source. - * - column: The column number in the original source. - * - * and an object is returned with the following properties: - * - * - line: The line number in the generated source, or null. - * - column: The column number in the generated source, or null. - */ - SourceMapConsumer.prototype.generatedPositionFor = - function SourceMapConsumer_generatedPositionFor(aArgs) { - var needle = { - source: util.getArg(aArgs, 'source'), - originalLine: util.getArg(aArgs, 'line'), - originalColumn: util.getArg(aArgs, 'column') - }; - - if (this.sourceRoot) { - needle.source = util.relative(this.sourceRoot, needle.source); - } - - var mapping = this._findMapping(needle, - this._originalMappings, - "originalLine", - "originalColumn", - util.compareByOriginalPositions); - - if (mapping) { - return { - line: util.getArg(mapping, 'generatedLine', null), - column: util.getArg(mapping, 'generatedColumn', null) - }; - } - - return { - line: null, - column: null - }; - }; - - SourceMapConsumer.GENERATED_ORDER = 1; - SourceMapConsumer.ORIGINAL_ORDER = 2; - - /** - * Iterate over each mapping between an original source/line/column and a - * generated line/column in this source map. - * - * @param Function aCallback - * The function that is called with each mapping. - * @param Object aContext - * Optional. If specified, this object will be the value of `this` every - * time that `aCallback` is called. - * @param aOrder - * Either `SourceMapConsumer.GENERATED_ORDER` or - * `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to - * iterate over the mappings sorted by the generated file's line/column - * order or the original's source/line/column order, respectively. Defaults to - * `SourceMapConsumer.GENERATED_ORDER`. - */ - SourceMapConsumer.prototype.eachMapping = - function SourceMapConsumer_eachMapping(aCallback, aContext, aOrder) { - var context = aContext || null; - var order = aOrder || SourceMapConsumer.GENERATED_ORDER; - - var mappings; - switch (order) { - case SourceMapConsumer.GENERATED_ORDER: - mappings = this._generatedMappings; - break; - case SourceMapConsumer.ORIGINAL_ORDER: - mappings = this._originalMappings; - break; - default: - throw new Error("Unknown order of iteration."); - } - - var sourceRoot = this.sourceRoot; - mappings.map(function (mapping) { - var source = mapping.source; - if (source && sourceRoot) { - source = util.join(sourceRoot, source); - } - return { - source: source, - generatedLine: mapping.generatedLine, - generatedColumn: mapping.generatedColumn, - originalLine: mapping.originalLine, - originalColumn: mapping.originalColumn, - name: mapping.name - }; - }).forEach(aCallback, context); - }; - - exports.SourceMapConsumer = SourceMapConsumer; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/binary-search', ['require', 'exports', 'module' , ], function(require, exports, module) { - - /** - * Recursive implementation of binary search. - * - * @param aLow Indices here and lower do not contain the needle. - * @param aHigh Indices here and higher do not contain the needle. - * @param aNeedle The element being searched for. - * @param aHaystack The non-empty array being searched. - * @param aCompare Function which takes two elements and returns -1, 0, or 1. - */ - function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare) { - // This function terminates when one of the following is true: - // - // 1. We find the exact element we are looking for. - // - // 2. We did not find the exact element, but we can return the next - // closest element that is less than that element. - // - // 3. We did not find the exact element, and there is no next-closest - // element which is less than the one we are searching for, so we - // return null. - var mid = Math.floor((aHigh - aLow) / 2) + aLow; - var cmp = aCompare(aNeedle, aHaystack[mid], true); - if (cmp === 0) { - // Found the element we are looking for. - return aHaystack[mid]; - } - else if (cmp > 0) { - // aHaystack[mid] is greater than our needle. - if (aHigh - mid > 1) { - // The element is in the upper half. - return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare); - } - // We did not find an exact match, return the next closest one - // (termination case 2). - return aHaystack[mid]; - } - else { - // aHaystack[mid] is less than our needle. - if (mid - aLow > 1) { - // The element is in the lower half. - return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare); - } - // The exact needle element was not found in this haystack. Determine if - // we are in termination case (2) or (3) and return the appropriate thing. - return aLow < 0 - ? null - : aHaystack[aLow]; - } - } - - /** - * This is an implementation of binary search which will always try and return - * the next lowest value checked if there is no exact hit. This is because - * mappings between original and generated line/col pairs are single points, - * and there is an implicit region between each of them, so a miss just means - * that you aren't on the very start of a region. - * - * @param aNeedle The element you are looking for. - * @param aHaystack The array that is being searched. - * @param aCompare A function which takes the needle and an element in the - * array and returns -1, 0, or 1 depending on whether the needle is less - * than, equal to, or greater than the element, respectively. - */ - exports.search = function search(aNeedle, aHaystack, aCompare) { - return aHaystack.length > 0 - ? recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack, aCompare) - : null; - }; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/source-node', ['require', 'exports', 'module' , 'source-map/source-map-generator', 'source-map/util'], function(require, exports, module) { - - var SourceMapGenerator = require('./source-map-generator').SourceMapGenerator; - var util = require('./util'); - - /** - * SourceNodes provide a way to abstract over interpolating/concatenating - * snippets of generated JavaScript source code while maintaining the line and - * column information associated with the original source code. - * - * @param aLine The original line number. - * @param aColumn The original column number. - * @param aSource The original source's filename. - * @param aChunks Optional. An array of strings which are snippets of - * generated JS, or other SourceNodes. - * @param aName The original identifier. - */ - function SourceNode(aLine, aColumn, aSource, aChunks, aName) { - this.children = []; - this.sourceContents = {}; - this.line = aLine === undefined ? null : aLine; - this.column = aColumn === undefined ? null : aColumn; - this.source = aSource === undefined ? null : aSource; - this.name = aName === undefined ? null : aName; - if (aChunks != null) this.add(aChunks); - } - - /** - * Creates a SourceNode from generated code and a SourceMapConsumer. - * - * @param aGeneratedCode The generated code - * @param aSourceMapConsumer The SourceMap for the generated code - */ - SourceNode.fromStringWithSourceMap = - function SourceNode_fromStringWithSourceMap(aGeneratedCode, aSourceMapConsumer) { - // The SourceNode we want to fill with the generated code - // and the SourceMap - var node = new SourceNode(); - - // The generated code - // Processed fragments are removed from this array. - var remainingLines = aGeneratedCode.split('\n'); - - // We need to remember the position of "remainingLines" - var lastGeneratedLine = 1, lastGeneratedColumn = 0; - - // The generate SourceNodes we need a code range. - // To extract it current and last mapping is used. - // Here we store the last mapping. - var lastMapping = null; - - aSourceMapConsumer.eachMapping(function (mapping) { - if (lastMapping === null) { - // We add the generated code until the first mapping - // to the SourceNode without any mapping. - // Each line is added as separate string. - while (lastGeneratedLine < mapping.generatedLine) { - node.add(remainingLines.shift() + "\n"); - lastGeneratedLine++; - } - if (lastGeneratedColumn < mapping.generatedColumn) { - var nextLine = remainingLines[0]; - node.add(nextLine.substr(0, mapping.generatedColumn)); - remainingLines[0] = nextLine.substr(mapping.generatedColumn); - lastGeneratedColumn = mapping.generatedColumn; - } - } else { - // We add the code from "lastMapping" to "mapping": - // First check if there is a new line in between. - if (lastGeneratedLine < mapping.generatedLine) { - var code = ""; - // Associate full lines with "lastMapping" - do { - code += remainingLines.shift() + "\n"; - lastGeneratedLine++; - lastGeneratedColumn = 0; - } while (lastGeneratedLine < mapping.generatedLine); - // When we reached the correct line, we add code until we - // reach the correct column too. - if (lastGeneratedColumn < mapping.generatedColumn) { - var nextLine = remainingLines[0]; - code += nextLine.substr(0, mapping.generatedColumn); - remainingLines[0] = nextLine.substr(mapping.generatedColumn); - lastGeneratedColumn = mapping.generatedColumn; - } - // Create the SourceNode. - addMappingWithCode(lastMapping, code); - } else { - // There is no new line in between. - // Associate the code between "lastGeneratedColumn" and - // "mapping.generatedColumn" with "lastMapping" - var nextLine = remainingLines[0]; - var code = nextLine.substr(0, mapping.generatedColumn - - lastGeneratedColumn); - remainingLines[0] = nextLine.substr(mapping.generatedColumn - - lastGeneratedColumn); - lastGeneratedColumn = mapping.generatedColumn; - addMappingWithCode(lastMapping, code); - } - } - lastMapping = mapping; - }, this); - // We have processed all mappings. - // Associate the remaining code in the current line with "lastMapping" - // and add the remaining lines without any mapping - addMappingWithCode(lastMapping, remainingLines.join("\n")); - - // Copy sourcesContent into SourceNode - aSourceMapConsumer.sources.forEach(function (sourceFile) { - var content = aSourceMapConsumer.sourceContentFor(sourceFile); - if (content) { - node.setSourceContent(sourceFile, content); - } - }); - - return node; - - function addMappingWithCode(mapping, code) { - if (mapping === null || mapping.source === undefined) { - node.add(code); - } else { - node.add(new SourceNode(mapping.originalLine, - mapping.originalColumn, - mapping.source, - code, - mapping.name)); - } - } - }; - - /** - * Add a chunk of generated JS to this source node. - * - * @param aChunk A string snippet of generated JS code, another instance of - * SourceNode, or an array where each member is one of those things. - */ - SourceNode.prototype.add = function SourceNode_add(aChunk) { - if (Array.isArray(aChunk)) { - aChunk.forEach(function (chunk) { - this.add(chunk); - }, this); - } - else if (aChunk instanceof SourceNode || typeof aChunk === "string") { - if (aChunk) { - this.children.push(aChunk); - } - } - else { - throw new TypeError( - "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk - ); - } - return this; - }; - - /** - * Add a chunk of generated JS to the beginning of this source node. - * - * @param aChunk A string snippet of generated JS code, another instance of - * SourceNode, or an array where each member is one of those things. - */ - SourceNode.prototype.prepend = function SourceNode_prepend(aChunk) { - if (Array.isArray(aChunk)) { - for (var i = aChunk.length-1; i >= 0; i--) { - this.prepend(aChunk[i]); - } - } - else if (aChunk instanceof SourceNode || typeof aChunk === "string") { - this.children.unshift(aChunk); - } - else { - throw new TypeError( - "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk - ); - } - return this; - }; - - /** - * Walk over the tree of JS snippets in this node and its children. The - * walking function is called once for each snippet of JS and is passed that - * snippet and the its original associated source's line/column location. - * - * @param aFn The traversal function. - */ - SourceNode.prototype.walk = function SourceNode_walk(aFn) { - var chunk; - for (var i = 0, len = this.children.length; i < len; i++) { - chunk = this.children[i]; - if (chunk instanceof SourceNode) { - chunk.walk(aFn); - } - else { - if (chunk !== '') { - aFn(chunk, { source: this.source, - line: this.line, - column: this.column, - name: this.name }); - } - } - } - }; - - /** - * Like `String.prototype.join` except for SourceNodes. Inserts `aStr` between - * each of `this.children`. - * - * @param aSep The separator. - */ - SourceNode.prototype.join = function SourceNode_join(aSep) { - var newChildren; - var i; - var len = this.children.length; - if (len > 0) { - newChildren = []; - for (i = 0; i < len-1; i++) { - newChildren.push(this.children[i]); - newChildren.push(aSep); - } - newChildren.push(this.children[i]); - this.children = newChildren; - } - return this; - }; - - /** - * Call String.prototype.replace on the very right-most source snippet. Useful - * for trimming whitespace from the end of a source node, etc. - * - * @param aPattern The pattern to replace. - * @param aReplacement The thing to replace the pattern with. - */ - SourceNode.prototype.replaceRight = function SourceNode_replaceRight(aPattern, aReplacement) { - var lastChild = this.children[this.children.length - 1]; - if (lastChild instanceof SourceNode) { - lastChild.replaceRight(aPattern, aReplacement); - } - else if (typeof lastChild === 'string') { - this.children[this.children.length - 1] = lastChild.replace(aPattern, aReplacement); - } - else { - this.children.push(''.replace(aPattern, aReplacement)); - } - return this; - }; - - /** - * Set the source content for a source file. This will be added to the SourceMapGenerator - * in the sourcesContent field. - * - * @param aSourceFile The filename of the source file - * @param aSourceContent The content of the source file - */ - SourceNode.prototype.setSourceContent = - function SourceNode_setSourceContent(aSourceFile, aSourceContent) { - this.sourceContents[util.toSetString(aSourceFile)] = aSourceContent; - }; - - /** - * Walk over the tree of SourceNodes. The walking function is called for each - * source file content and is passed the filename and source content. - * - * @param aFn The traversal function. - */ - SourceNode.prototype.walkSourceContents = - function SourceNode_walkSourceContents(aFn) { - for (var i = 0, len = this.children.length; i < len; i++) { - if (this.children[i] instanceof SourceNode) { - this.children[i].walkSourceContents(aFn); - } - } - - var sources = Object.keys(this.sourceContents); - for (var i = 0, len = sources.length; i < len; i++) { - aFn(util.fromSetString(sources[i]), this.sourceContents[sources[i]]); - } - }; - - /** - * Return the string representation of this source node. Walks over the tree - * and concatenates all the various snippets together to one string. - */ - SourceNode.prototype.toString = function SourceNode_toString() { - var str = ""; - this.walk(function (chunk) { - str += chunk; - }); - return str; - }; - - /** - * Returns the string representation of this source node along with a source - * map. - */ - SourceNode.prototype.toStringWithSourceMap = function SourceNode_toStringWithSourceMap(aArgs) { - var generated = { - code: "", - line: 1, - column: 0 - }; - var map = new SourceMapGenerator(aArgs); - var sourceMappingActive = false; - var lastOriginalSource = null; - var lastOriginalLine = null; - var lastOriginalColumn = null; - var lastOriginalName = null; - this.walk(function (chunk, original) { - generated.code += chunk; - if (original.source !== null - && original.line !== null - && original.column !== null) { - if(lastOriginalSource !== original.source - || lastOriginalLine !== original.line - || lastOriginalColumn !== original.column - || lastOriginalName !== original.name) { - map.addMapping({ - source: original.source, - original: { - line: original.line, - column: original.column - }, - generated: { - line: generated.line, - column: generated.column - }, - name: original.name - }); - } - lastOriginalSource = original.source; - lastOriginalLine = original.line; - lastOriginalColumn = original.column; - lastOriginalName = original.name; - sourceMappingActive = true; - } else if (sourceMappingActive) { - map.addMapping({ - generated: { - line: generated.line, - column: generated.column - } - }); - lastOriginalSource = null; - sourceMappingActive = false; - } - chunk.split('').forEach(function (ch) { - if (ch === '\n') { - generated.line++; - generated.column = 0; - } else { - generated.column++; - } - }); - }); - this.walkSourceContents(function (sourceFile, sourceContent) { - map.setSourceContent(sourceFile, sourceContent); - }); - - return { code: generated.code, map: map }; - }; - - exports.SourceNode = SourceNode; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/////////////////////////////////////////////////////////////////////////////// - -this.sourceMap = { - SourceMapConsumer: require('source-map/source-map-consumer').SourceMapConsumer, - SourceMapGenerator: require('source-map/source-map-generator').SourceMapGenerator, - SourceNode: require('source-map/source-node').SourceNode -}; - -// footer to wrap "source-map" module - return this.sourceMap; - }(); -})(); \ No newline at end of file diff --git a/awx/ui/static/lib/less/dist/less-rhino-1.7.1.js b/awx/ui/static/lib/less/dist/less-rhino-1.7.1.js deleted file mode 100644 index b661f75abb..0000000000 --- a/awx/ui/static/lib/less/dist/less-rhino-1.7.1.js +++ /dev/null @@ -1,9311 +0,0 @@ -/* Less.js v1.7.1 RHINO | Copyright (c) 2009-2014, Alexis Sellier */ - -// -// Stub out `require` in rhino -// -function require(arg) { - var split = arg.split('/'); - var resultModule = split.length == 1 ? less.modules[split[0]] : less[split[1]]; - if (!resultModule) { - throw { message: "Cannot find module '" + arg + "'"}; - } - return resultModule; -} - - -if (typeof(window) === 'undefined') { less = {} } -else { less = window.less = {} } -tree = less.tree = {}; -less.mode = 'rhino'; - -(function() { - - console = function() { - var stdout = java.lang.System.out; - var stderr = java.lang.System.err; - - function doLog(out, type) { - return function() { - var args = java.lang.reflect.Array.newInstance(java.lang.Object, arguments.length - 1); - var format = arguments[0]; - var conversionIndex = 0; - // need to look for %d (integer) conversions because in Javascript all numbers are doubles - for (var i = 1; i < arguments.length; i++) { - var arg = arguments[i]; - if (conversionIndex != -1) { - conversionIndex = format.indexOf('%', conversionIndex); - } - if (conversionIndex >= 0 && conversionIndex < format.length) { - var conversion = format.charAt(conversionIndex + 1); - if (conversion === 'd' && typeof arg === 'number') { - arg = new java.lang.Integer(new java.lang.Double(arg).intValue()); - } - conversionIndex++; - } - args[i-1] = arg; - } - try { - out.println(type + java.lang.String.format(format, args)); - } catch(ex) { - stderr.println(ex); - } - } - } - return { - log: doLog(stdout, ''), - info: doLog(stdout, 'INFO: '), - error: doLog(stderr, 'ERROR: '), - warn: doLog(stderr, 'WARN: ') - }; - }(); - - less.modules = {}; - - less.modules.path = { - join: function() { - var parts = []; - for (i in arguments) { - parts = parts.concat(arguments[i].split(/\/|\\/)); - } - var result = []; - for (i in parts) { - var part = parts[i]; - if (part === '..' && result.length > 0 && result[result.length-1] !== '..') { - result.pop(); - } else if (part === '' && result.length > 0) { - // skip - } else if (part !== '.') { - if (part.slice(-1)==='\\' || part.slice(-1)==='/') { - part = part.slice(0, -1); - } - result.push(part); - } - } - return result.join('/'); - }, - dirname: function(p) { - var path = p.split('/'); - path.pop(); - return path.join('/'); - }, - basename: function(p, ext) { - var base = p.split('/').pop(); - if (ext) { - var index = base.lastIndexOf(ext); - if (base.length === index + ext.length) { - base = base.substr(0, index); - } - } - return base; - }, - extname: function(p) { - var index = p.lastIndexOf('.'); - return index > 0 ? p.substring(index) : ''; - } - }; - - less.modules.fs = { - readFileSync: function(name) { - // read a file into a byte array - var file = new java.io.File(name); - var stream = new java.io.FileInputStream(file); - var buffer = []; - var c; - while ((c = stream.read()) != -1) { - buffer.push(c); - } - stream.close(); - return { - length: buffer.length, - toString: function(enc) { - if (enc === 'base64') { - return encodeBase64Bytes(buffer); - } else if (enc) { - return java.lang.String["(byte[],java.lang.String)"](buffer, enc); - } else { - return java.lang.String["(byte[])"](buffer); - } - } - }; - } - }; - - less.encoder = { - encodeBase64: function(str) { - return encodeBase64String(str); - } - }; - - // --------------------------------------------------------------------------------------------- - // private helper functions - // --------------------------------------------------------------------------------------------- - - function encodeBase64Bytes(bytes) { - // requires at least a JRE Platform 6 (or JAXB 1.0 on the classpath) - return javax.xml.bind.DatatypeConverter.printBase64Binary(bytes) - } - function encodeBase64String(str) { - return encodeBase64Bytes(new java.lang.String(str).getBytes()); - } - -})(); - -var less, tree; - -// Node.js does not have a header file added which defines less -if (less === undefined) { - less = exports; - tree = require('./tree'); - less.mode = 'node'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `currentPos` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - saveStack = [], // holds state for backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // current chunk - currentPos, // index of current chunk, in `input` - parser, - parsers, - rootFilename = env && env.filename; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed around by reference. - if (!(env instanceof tree.parseEnv)) { - env = new tree.parseEnv(env); - } - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - contentsIgnoredChars: env.contentsIgnoredChars, // lines inserted, not in the original less - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, currentFileInfo, importOptions, callback) { - var parserImports = this; - this.queue.push(path); - - var fileParsedFunc = function (e, root, fullPath) { - parserImports.queue.splice(parserImports.queue.indexOf(path), 1); // Remove the path from the queue - - var importedPreviously = fullPath === rootFilename; - - parserImports.files[fullPath] = root; // Store the root - - if (e && !parserImports.error) { parserImports.error = e; } - - callback(e, root, importedPreviously, fullPath); - }; - - if (less.Parser.importer) { - less.Parser.importer(path, currentFileInfo, fileParsedFunc, env); - } else { - less.Parser.fileLoader(path, currentFileInfo, function(e, contents, fullPath, newFileInfo) { - if (e) {fileParsedFunc(e); return;} - - var newEnv = new tree.parseEnv(env); - - newEnv.currentFileInfo = newFileInfo; - newEnv.processImports = false; - newEnv.contents[fullPath] = contents; - - if (currentFileInfo.reference || importOptions.reference) { - newFileInfo.reference = true; - } - - if (importOptions.inline) { - fileParsedFunc(null, contents, fullPath); - } else { - new(less.Parser)(newEnv).parse(contents, function (e, root) { - fileParsedFunc(e, root, fullPath); - }); - } - }, env); - } - } - }; - - function save() { currentPos = i; saveStack.push( { current: current, i: i, j: j }); } - function restore() { var state = saveStack.pop(); current = state.current; currentPos = i = state.i; j = state.j; } - function forget() { saveStack.pop(); } - - function sync() { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - } - function isWhitespace(str, pos) { - var code = str.charCodeAt(pos | 0); - return (code <= 32) && (code === 32 || code === 10 || code === 9); - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var tokType = typeof tok, - match, length; - - // Either match a single character in the input, - // or match a regexp in the current chunk (`current`). - // - if (tokType === "string") { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - // regexp - sync (); - if (! (match = tok.exec(current))) { - return null; - } - - length = match[0].length; - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - - // Specialization of $(tok) - function $re(tok) { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - var m = tok.exec(current); - if (!m) { - return null; - } - - skipWhitespace(m[0].length); - if(typeof m === "string") { - return m; - } - - return m.length === 1 ? m[0] : m; - } - - var _$re = $re; - - // Specialization of $(tok) - function $char(tok) { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - curr = i - currentPos, - endIndex = i + current.length - curr, - mem = (i += length), - inp = input, - c; - - for (; i < endIndex; i++) { - c = inp.charCodeAt(i); - if (c > 32) { - break; - } - - if ((c !== 32) && (c !== 10) && (c !== 9) && (c !== 13)) { - break; - } - } - - current = current.slice(length + i - mem + curr); - currentPos = i; - - if (!current.length && (j < chunks.length - 1)) { - current = chunks[++j]; - skipWhitespace(0); // skip space at the beginning of a chunk - return true; // things changed - } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - // some older browsers return typeof 'function' for RegExp - var result = (Object.prototype.toString.call(arg) === '[object Function]') ? arg.call(parsers) : $(arg); - if (result) { - return result; - } - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } - - // Specialization of expect() - function expectChar(arg, msg) { - if (input.charAt(i) === arg) { - skipWhitespace(1); - return arg; - } - error(msg || "expected '" + arg + "' got '" + input.charAt(i) + "'"); - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - return tok.test(current); - } - } - - // Specialization of peek() - function peekChar(tok) { - return input.charAt(i) === tok; - } - - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, inputStream) { - var n = index + 1, - line = null, - column = -1; - - while (--n >= 0 && inputStream.charAt(n) !== '\n') { - column++; - } - - if (typeof index === 'number') { - line = (inputStream.slice(0, index).match(/\n/g) || "").length; - } - - return { - line: line, - column: column - }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - callLine = e.call && getLocation(e.call, input).line, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = callLine + 1; - this.callExtract = lines[callLine]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // @param str A string containing 'less' markup - // @param callback call `callback` when done. - // @param [additionalData] An optional map which can contains vars - a map (key, value) of variables to apply - // - parse: function (str, callback, additionalData) { - var root, line, lines, error = null, globalVars, modifyVars, preText = ""; - - i = j = currentPos = furthest = 0; - - globalVars = (additionalData && additionalData.globalVars) ? less.Parser.serializeVars(additionalData.globalVars) + '\n' : ''; - modifyVars = (additionalData && additionalData.modifyVars) ? '\n' + less.Parser.serializeVars(additionalData.modifyVars) : ''; - - if (globalVars || (additionalData && additionalData.banner)) { - preText = ((additionalData && additionalData.banner) ? additionalData.banner : "") + globalVars; - parser.imports.contentsIgnoredChars[env.currentFileInfo.filename] = preText.length; - } - - str = str.replace(/\r\n/g, '\n'); - // Remove potential UTF Byte Order Mark - input = str = preText + str.replace(/^\uFEFF/, '') + modifyVars; - parser.imports.contents[env.currentFileInfo.filename] = str; - - // Split the input into chunks. - chunks = (function (input) { - var len = input.length, level = 0, parenLevel = 0, - lastOpening, lastOpeningParen, lastMultiComment, lastMultiCommentEndBrace, - chunks = [], emitFrom = 0, - parserCurrentIndex, currentChunkStartIndex, cc, cc2, matched; - - function fail(msg, index) { - error = new(LessError)({ - index: index || parserCurrentIndex, - type: 'Parse', - message: msg, - filename: env.currentFileInfo.filename - }, env); - } - - function emitChunk(force) { - var len = parserCurrentIndex - emitFrom; - if (((len < 512) && !force) || !len) { - return; - } - chunks.push(input.slice(emitFrom, parserCurrentIndex + 1)); - emitFrom = parserCurrentIndex + 1; - } - - for (parserCurrentIndex = 0; parserCurrentIndex < len; parserCurrentIndex++) { - cc = input.charCodeAt(parserCurrentIndex); - if (((cc >= 97) && (cc <= 122)) || (cc < 34)) { - // a-z or whitespace - continue; - } - - switch (cc) { - case 40: // ( - parenLevel++; - lastOpeningParen = parserCurrentIndex; - continue; - case 41: // ) - if (--parenLevel < 0) { - return fail("missing opening `(`"); - } - continue; - case 59: // ; - if (!parenLevel) { emitChunk(); } - continue; - case 123: // { - level++; - lastOpening = parserCurrentIndex; - continue; - case 125: // } - if (--level < 0) { - return fail("missing opening `{`"); - } - if (!level && !parenLevel) { emitChunk(); } - continue; - case 92: // \ - if (parserCurrentIndex < len - 1) { parserCurrentIndex++; continue; } - return fail("unescaped `\\`"); - case 34: - case 39: - case 96: // ", ' and ` - matched = 0; - currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 1; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 > 96) { continue; } - if (cc2 == cc) { matched = 1; break; } - if (cc2 == 92) { // \ - if (parserCurrentIndex == len - 1) { - return fail("unescaped `\\`"); - } - parserCurrentIndex++; - } - } - if (matched) { continue; } - return fail("unmatched `" + String.fromCharCode(cc) + "`", currentChunkStartIndex); - case 47: // /, check for comment - if (parenLevel || (parserCurrentIndex == len - 1)) { continue; } - cc2 = input.charCodeAt(parserCurrentIndex + 1); - if (cc2 == 47) { - // //, find lnfeed - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if ((cc2 <= 13) && ((cc2 == 10) || (cc2 == 13))) { break; } - } - } else if (cc2 == 42) { - // /*, find */ - lastMultiComment = currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len - 1; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 == 125) { lastMultiCommentEndBrace = parserCurrentIndex; } - if (cc2 != 42) { continue; } - if (input.charCodeAt(parserCurrentIndex + 1) == 47) { break; } - } - if (parserCurrentIndex == len - 1) { - return fail("missing closing `*/`", currentChunkStartIndex); - } - parserCurrentIndex++; - } - continue; - case 42: // *, check for unmatched */ - if ((parserCurrentIndex < len - 1) && (input.charCodeAt(parserCurrentIndex + 1) == 47)) { - return fail("unmatched `/*`"); - } - continue; - } - } - - if (level !== 0) { - if ((lastMultiComment > lastOpening) && (lastMultiCommentEndBrace > lastMultiComment)) { - return fail("missing closing `}` or `*/`", lastOpening); - } else { - return fail("missing closing `}`", lastOpening); - } - } else if (parenLevel !== 0) { - return fail("missing closing `)`", lastOpeningParen); - } - - emitChunk(true); - return chunks; - })(str); - - if (error) { - return callback(new(LessError)(error, env)); - } - - current = chunks[0]; - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)(null, this.parsers.primary()); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - return function (options, variables) { - options = options || {}; - var evaldRoot, - css, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, null, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var preEvalVisitors = [], - visitors = [ - new(tree.joinSelectorVisitor)(), - new(tree.processExtendsVisitor)(), - new(tree.toCSSVisitor)({compress: Boolean(options.compress)}) - ], i, root = this; - - if (options.plugins) { - for(i =0; i < options.plugins.length; i++) { - if (options.plugins[i].isPreEvalVisitor) { - preEvalVisitors.push(options.plugins[i]); - } else { - if (options.plugins[i].isPreVisitor) { - visitors.splice(0, 0, options.plugins[i]); - } else { - visitors.push(options.plugins[i]); - } - } - } - } - - for(i = 0; i < preEvalVisitors.length; i++) { - preEvalVisitors[i].run(root); - } - - evaldRoot = evaluate.call(root, evalEnv); - - for(i = 0; i < visitors.length; i++) { - visitors[i].run(evaldRoot); - } - - if (options.sourceMap) { - evaldRoot = new tree.sourceMapOutput( - { - contentsIgnoredCharsMap: parser.imports.contentsIgnoredChars, - writeSourceMap: options.writeSourceMap, - rootNode: evaldRoot, - contentsMap: parser.imports.contents, - sourceMapFilename: options.sourceMapFilename, - sourceMapURL: options.sourceMapURL, - outputFilename: options.sourceMapOutputFilename, - sourceMapBasepath: options.sourceMapBasepath, - sourceMapRootpath: options.sourceMapRootpath, - outputSourceFiles: options.outputSourceFiles, - sourceMapGenerator: options.sourceMapGenerator - }); - } - - css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits), - numPrecision: 8}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.cleancss && less.mode === 'node') { - var CleanCSS = require('clean-css'), - cleancssOptions = options.cleancssOptions || {}; - - if (cleancssOptions.keepSpecialComments === undefined) { - cleancssOptions.keepSpecialComments = "*"; - } - cleancssOptions.processImport = false; - cleancssOptions.noRebase = true; - if (cleancssOptions.noAdvanced === undefined) { - cleancssOptions.noAdvanced = true; - } - - return new CleanCSS(cleancssOptions).minify(css); - } else if (options.compress) { - return css.replace(/(^(\s)+)|((\s)+$)/g, ""); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - var loc = getLocation(i, input); - lines = input.split('\n'); - line = loc.line + 1; - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: loc.column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - return callback(e); - } - else { - return callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - return finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some Less code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: parsers = { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var mixin = this.mixin, $re = _$re, root = [], node; - - while (current) - { - node = this.extendRule() || mixin.definition() || this.rule() || this.ruleset() || - mixin.call() || this.comment() || this.rulesetCall() || this.directive(); - if (node) { - root.push(node); - } else { - if (!($re(/^[\s\n]+/) || $re(/^;+/))) { - break; - } - } - if (peekChar('}')) { - break; - } - } - - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') { return; } - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($re(/^\/\/.*/), true, i, env.currentFileInfo); - } - comment = $re(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/); - if (comment) { - return new(tree.Comment)(comment, false, i, env.currentFileInfo); - } - }, - - comments: function () { - var comment, comments = []; - - while(true) { - comment = this.comment(); - if (!comment) { - break; - } - comments.push(comment); - } - - return comments; - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; } - - if (e) { $char('~'); } - - str = $re(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/); - if (str) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - k = $re(/^%|^[_A-Za-z-][_A-Za-z0-9-]*/); - if (k) { - var color = tree.Color.fromKeyword(k); - if (color) { - return color; - } - return new(tree.Keyword)(k); - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(current); - if (!name) { return; } - - name = name[1]; - nameLC = name.toLowerCase(); - if (nameLC === 'url') { - return null; - } - - i += name.length; - - if (nameLC === 'alpha') { - alpha_ret = parsers.alpha(); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $char('('); // Parse the '(' and consume whitespace. - - args = this.arguments(); - - if (! $char(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (true) { - arg = this.assignment() || parsers.expression(); - if (!arg) { - break; - } - args.push(arg); - if (! $char(',')) { - break; - } - } - return args; - }, - literal: function () { - return this.dimension() || - this.color() || - this.quoted() || - this.unicodeDescriptor(); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - key = $re(/^\w+(?=\s?=)/i); - if (!key) { - return; - } - if (!$char('=')) { - return; - } - value = parsers.entity(); - if (value) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$re(/^url\(/)) { - return; - } - - value = this.quoted() || this.variable() || - $re(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expectChar(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $re(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var curly, index = i; - - if (input.charAt(i) === '@' && (curly = $re(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $re(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - var colorCandidateString = rgb.input.match(/^#([\w]+).*/); // strip colons, brackets, whitespaces and other characters that should not definitely be part of color string - colorCandidateString = colorCandidateString[1]; - if (!colorCandidateString.match(/^[A-Fa-f0-9]+$/)) { // verify if candidate consists only of allowed HEX characters - error("Invalid HEX color code"); - } - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) { - return; - } - - value = $re(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/); - if (value) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - ud = $re(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/); - if (ud) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '`') { return; } - if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) { - error("You are using JavaScript, which has been disabled."); - } - - if (e) { $char('~'); } - - str = $re(/^`([^`]*)`/); - if (str) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*:/))) { return name[1]; } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink(); - // - rulesetCall: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*\(\s*\)\s*;/))) { - return new tree.RulesetCall(name[1]); - } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList, extend; - - if (!(isRule ? $re(/^&:extend\(/) : $re(/^:extend\(/))) { return; } - - do { - option = null; - elements = null; - while (! (option = $re(/^(all)(?=\s*(\)|,))/))) { - e = this.element(); - if (!e) { break; } - if (elements) { elements.push(e); } else { elements = [ e ]; } - } - - option = option && option[1]; - - extend = new(tree.Extend)(new(tree.Selector)(elements), option, index); - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - - } while($char(",")); - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var s = input.charAt(i), important = false, index = i, elemIndex, - elements, elem, e, c, args; - - if (s !== '.' && s !== '#') { return; } - - save(); // stop us absorbing part of an invalid selector - - while (true) { - elemIndex = i; - e = $re(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/); - if (!e) { - break; - } - elem = new(tree.Element)(c, e, elemIndex, env.currentFileInfo); - if (elements) { elements.push(elem); } else { elements = [ elem ]; } - c = $char('>'); - } - - if (elements) { - if ($char('(')) { - args = this.args(true).args; - expectChar(')'); - } - - if (parsers.important()) { - important = true; - } - - if (parsers.end()) { - forget(); - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - } - - restore(); - }, - args: function (isCall) { - var parsers = parser.parsers, entities = parsers.entities, - returner = { args:null, variadic: false }, - expressions = [], argsSemiColon = [], argsComma = [], - isSemiColonSeperated, expressionContainsNamed, name, nameLoop, value, arg; - - save(); - - while (true) { - if (isCall) { - arg = parsers.detachedRuleset() || parsers.expression(); - } else { - parsers.comments(); - if (input.charAt(i) === '.' && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = entities.variable() || entities.literal() || entities.keyword(); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value && arg.value.length == 1) { - val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($char(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - - // we do not support setting a ruleset as a default variable - it doesn't make sense - // However if we do want to add it, there is nothing blocking it, just don't error - // and remove isCall dependency below - value = (isCall && parsers.detachedRuleset()) || parsers.expression(); - - if (!value) { - if (isCall) { - error("could not understand value for named argument"); - } else { - restore(); - returner.args = []; - return returner; - } - } - nameLoop = (name = val.name); - } else if (!isCall && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($char(',')) { - continue; - } - - if ($char(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - forget(); - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) { - return; - } - - save(); - - match = $re(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/); - if (match) { - name = match[1]; - - var argInfo = this.args(false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. - // also - // .mixincall(@a: {rule: set;}); - // so we have to be nice and restore - if (!$char(')')) { - furthest = i; - restore(); - return; - } - - parsers.comments(); - - if ($re(/^when/)) { // Guard - cond = expect(parsers.conditions, 'expected condition'); - } - - ruleset = parsers.block(); - - if (ruleset) { - forget(); - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } else { - forget(); - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - var entities = this.entities; - - return entities.literal() || entities.variable() || entities.url() || - entities.call() || entities.keyword() || entities.javascript() || - this.comment(); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $char(';') || peekChar('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $re(/^\(opacity=/i)) { return; } - value = $re(/^\d+/) || this.entities.variable(); - if (value) { - expectChar(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, c, v, index = i; - - c = this.combinator(); - - e = $re(/^(?:\d+\.\d+|\d+)%/) || $re(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $char('*') || $char('&') || this.attribute() || $re(/^\([^()@]+\)/) || $re(/^[\.#](?=@)/) || - this.entities.variableCurly(); - - if (! e) { - save(); - if ($char('(')) { - if ((v = this.selector()) && $char(')')) { - e = new(tree.Paren)(v); - forget(); - } else { - restore(); - } - } else { - forget(); - } - } - - if (e) { return new(tree.Element)(c, e, index, env.currentFileInfo); } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|' || c === '^') { - i++; - if (input.charAt(i) === '^') { - c = '^^'; - i++; - } - while (isWhitespace(input, i)) { i++; } - return new(tree.Combinator)(c); - } else if (isWhitespace(input, i - 1)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - // - // A CSS selector (see selector below) - // with less extensions e.g. the ability to extend and guard - // - lessSelector: function () { - return this.selector(true); - }, - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function (isLess) { - var index = i, $re = _$re, elements, extendList, c, e, extend, when, condition; - - while ((isLess && (extend = this.extend())) || (isLess && (when = $re(/^when/))) || (e = this.element())) { - if (when) { - condition = expect(this.conditions, 'expected condition'); - } else if (condition) { - error("CSS guard can only be used at the end of selector"); - } else if (extend) { - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - } else { - if (extendList) { error("Extend can only be used at the end of selector"); } - c = input.charAt(i); - if (elements) { elements.push(e); } else { elements = [ e ]; } - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { - break; - } - } - - if (elements) { return new(tree.Selector)(elements, extendList, condition, index, env.currentFileInfo); } - if (extendList) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - if (! $char('[')) { return; } - - var entities = this.entities, - key, val, op; - - if (!(key = entities.variableCurly())) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - op = $re(/^[|~*$^]?=/); - if (op) { - val = entities.quoted() || $re(/^[0-9]+%/) || $re(/^[\w-]+/) || entities.variableCurly(); - } - - expectChar(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($char('{') && (content = this.primary()) && $char('}')) { - return content; - } - }, - - blockRuleset: function() { - var block = this.block(); - - if (block) { - block = new tree.Ruleset(null, block); - } - return block; - }, - - detachedRuleset: function() { - var blockRuleset = this.blockRuleset(); - if (blockRuleset) { - return new tree.DetachedRuleset(blockRuleset); - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors, s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - while (true) { - s = this.lessSelector(); - if (!s) { - break; - } - if (selectors) { selectors.push(s); } else { selectors = [ s ]; } - this.comments(); - if (s.condition && selectors.length > 1) { - error("Guards are only currently allowed on a single selector."); - } - if (! $char(',')) { break; } - if (s.condition) { - error("Guards are only currently allowed on a single selector."); - } - this.comments(); - } - - if (selectors && (rules = this.block())) { - forget(); - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) { - ruleset.debugInfo = debugInfo; - } - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, startOfRule = i, c = input.charAt(startOfRule), important, merge, isVariable; - - if (c === '.' || c === '#' || c === '&') { return; } - - save(); - - name = this.variable() || this.ruleProperty(); - if (name) { - isVariable = typeof name === "string"; - - if (isVariable) { - value = this.detachedRuleset(); - } - - if (!value) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || isVariable) ? - (this.value() || this.anonymousValue()) : - (this.anonymousValue() || this.value()); - - important = this.important(); - - // a name returned by this.ruleProperty() is always an array of the form: - // [string-1, ..., string-n, ""] or [string-1, ..., string-n, "+"] - // where each item is a tree.Keyword or tree.Variable - merge = !isVariable && name.pop().value; - } - - if (value && this.end()) { - forget(); - return new (tree.Rule)(name, value, important, merge, startOfRule, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } else { - forget(); - } - }, - anonymousValue: function () { - var match; - match = /^([^@+\/'"*`(;{}-]*);/.exec(current); - if (match) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $re(/^@import?\s+/); - - var options = (dir ? this.importOptions() : null) || {}; - - if (dir && (path = this.entities.quoted() || this.entities.url())) { - features = this.mediaFeatures(); - if ($char(';')) { - forget(); - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $char('(')) { return null; } - do { - o = this.importOption(); - if (o) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $char(',')) { break; } - } - } while (o); - expectChar(')'); - return options; - }, - - importOption: function() { - var opt = $re(/^(less|css|multiple|once|inline|reference)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var entities = this.entities, nodes = [], e, p; - do { - e = entities.keyword() || entities.variable(); - if (e) { - nodes.push(e); - } else if ($char('(')) { - p = this.property(); - e = this.value(); - if ($char(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null; } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var entities = this.entities, features = [], e; - do { - e = this.mediaFeature(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } else { - e = entities.variable(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - if ($re(/^@media/)) { - features = this.mediaFeatures(); - - rules = this.block(); - if (rules) { - media = new(tree.Media)(rules, features, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - media.debugInfo = debugInfo; - } - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var index = i, name, value, rules, nonVendorSpecificName, - hasIdentifier, hasExpression, hasUnknown, hasBlock = true; - - if (input.charAt(i) !== '@') { return; } - - value = this['import']() || this.media(); - if (value) { - return value; - } - - save(); - - name = $re(/^@[a-z-]+/); - - if (!name) { return; } - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - /* - case "@font-face": - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - */ - case "@charset": - hasIdentifier = true; - hasBlock = false; - break; - case "@namespace": - hasExpression = true; - hasBlock = false; - break; - case "@keyframes": - hasIdentifier = true; - break; - case "@host": - case "@page": - case "@document": - case "@supports": - hasUnknown = true; - break; - } - - if (hasIdentifier) { - value = this.entity(); - if (!value) { - error("expected " + name + " identifier"); - } - } else if (hasExpression) { - value = this.expression(); - if (!value) { - error("expected " + name + " expression"); - } - } else if (hasUnknown) { - value = ($re(/^[^{;]+/) || '').trim(); - if (value) { - value = new(tree.Anonymous)(value); - } - } - - if (hasBlock) { - rules = this.blockRuleset(); - } - - if (rules || (!hasBlock && value && $char(';'))) { - forget(); - return new(tree.Directive)(name, value, rules, index, env.currentFileInfo, - env.dumpLineNumbers ? getDebugInfo(index, input, env) : null); - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = []; - - do { - e = this.expression(); - if (e) { - expressions.push(e); - if (! $char(',')) { break; } - } - } while(e); - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $re(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($char('(')) { - a = this.addition(); - if (a) { - e = new(tree.Expression)([a]); - expectChar(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced; - m = this.operand(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - if (peek(/^\/[*\/]/)) { - break; - } - op = $char('/') || $char('*'); - - if (!op) { break; } - - a = this.operand(); - - if (!a) { break; } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - m = this.multiplication(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - op = $re(/^[-+]\s+/) || (!isSpaced && ($char('+') || $char('-'))); - if (!op) { - break; - } - a = this.multiplication(); - if (!a) { - break; - } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - a = this.condition(); - if (a) { - while (true) { - if (!peek(/^,\s*(not\s*)?\(/) || !$char(',')) { - break; - } - b = this.condition(); - if (!b) { - break; - } - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var entities = this.entities, index = i, negate = false, - a, b, c, op; - - if ($re(/^not/)) { negate = true; } - expectChar('('); - a = this.addition() || entities.keyword() || entities.quoted(); - if (a) { - op = $re(/^(?:>=|<=|=<|[<=>])/); - if (op) { - b = this.addition() || entities.keyword() || entities.quoted(); - if (b) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expectChar(')'); - return $re(/^and/) ? new(tree.Condition)('and', c, this.condition()) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var entities = this.entities, - p = input.charAt(i + 1), negate; - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $char('-'); } - var o = this.sub() || entities.dimension() || - entities.color() || entities.variable() || - entities.call(); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var entities = [], e, delim; - - do { - e = this.addition() || this.entity(); - if (e) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/)) { - delim = $char('/'); - if (delim) { - entities.push(new(tree.Anonymous)(delim)); - } - } - } - } while (e); - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name = $re(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/); - if (name) { - return name[1]; - } - }, - ruleProperty: function () { - var c = current, name = [], index = [], length = 0, s, k; - - function match(re) { - var a = re.exec(c); - if (a) { - index.push(i + length); - length += a[0].length; - c = c.slice(a[1].length); - return name.push(a[1]); - } - } - - match(/^(\*?)/); - while (match(/^((?:[\w-]+)|(?:@\{[\w-]+\}))/)); // ! - if ((name.length > 1) && match(/^\s*((?:\+_|\+)?)\s*:/)) { - // at last, we have the complete match now. move forward, - // convert name particles to tree objects and return: - skipWhitespace(length); - if (name[0] === '') { - name.shift(); - index.shift(); - } - for (k = 0; k < name.length; k++) { - s = name[k]; - name[k] = (s.charAt(0) !== '@') - ? new(tree.Keyword)(s) - : new(tree.Variable)('@' + s.slice(2, -1), - index[k], env.currentFileInfo); - } - return name; - } - } - } - }; - return parser; -}; -less.Parser.serializeVars = function(vars) { - var s = ''; - - for (var name in vars) { - if (Object.hasOwnProperty.call(vars, name)) { - var value = vars[name]; - s += ((name[0] === '@') ? '' : '@') + name +': '+ value + - ((('' + value).slice(-1) === ';') ? '' : ';'); - } - } - - return s; -}; - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 255); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; } - else if (h * 2 < 1) { return m2; } - else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; } - else { return m1; } - } - - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - luminance: function (color) { - var luminance = - (0.2126 * color.rgb[0] / 255) - + (0.7152 * color.rgb[1] / 255) - + (0.0722 * color.rgb[2] / 255); - - return new(tree.Dimension)(Math.round(luminance * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - // filter: saturate(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if (color.luma() < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str.value); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - replace: function (string, pattern, replacement, flags) { - var result = string.value; - - result = result.replace(new RegExp(pattern.value, flags ? flags.value : ''), replacement.value); - return new(tree.Quoted)(string.quote || '', result, string.escaped); - }, - '%': function (string /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - result = string.value; - - for (var i = 0; i < args.length; i++) { - /*jshint loopfunc:true */ - result = result.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - result = result.replace(/%%/g, '%'); - return new(tree.Quoted)(string.quote || '', result, string.escaped); - }, - unit: function (val, unit) { - if(!(val instanceof tree.Dimension)) { - throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") }; - } - if (unit) { - if (unit instanceof tree.Keyword) { - unit = unit.value; - } else { - unit = unit.toCSS(); - } - } else { - unit = ""; - } - return new(tree.Dimension)(val.value, unit); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return _math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _minmax: function (isMin, args) { - args = Array.prototype.slice.call(args); - switch(args.length) { - case 0: throw { type: "Argument", message: "one or more arguments required" }; - } - var i, j, current, currentUnified, referenceUnified, unit, unitStatic, unitClone, - order = [], // elems only contains original argument values. - values = {}; // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - for (i = 0; i < args.length; i++) { - current = args[i]; - if (!(current instanceof tree.Dimension)) { - if(Array.isArray(args[i].value)) { - Array.prototype.push.apply(args, Array.prototype.slice.call(args[i].value)); - } - continue; - } - currentUnified = current.unit.toString() === "" && unitClone !== undefined ? new(tree.Dimension)(current.value, unitClone).unify() : current.unify(); - unit = currentUnified.unit.toString() === "" && unitStatic !== undefined ? unitStatic : currentUnified.unit.toString(); - unitStatic = unit !== "" && unitStatic === undefined || unit !== "" && order[0].unify().unit.toString() === "" ? unit : unitStatic; - unitClone = unit !== "" && unitClone === undefined ? current.unit.toString() : unitClone; - j = values[""] !== undefined && unit !== "" && unit === unitStatic ? values[""] : values[unit]; - if (j === undefined) { - if(unitStatic !== undefined && unit !== unitStatic) { - throw{ type: "Argument", message: "incompatible types" }; - } - values[unit] = order.length; - order.push(current); - continue; - } - referenceUnified = order[j].unit.toString() === "" && unitClone !== undefined ? new(tree.Dimension)(order[j].value, unitClone).unify() : order[j].unify(); - if ( isMin && currentUnified.value < referenceUnified.value || - !isMin && currentUnified.value > referenceUnified.value) { - order[j] = current; - } - } - if (order.length == 1) { - return order[0]; - } - args = order.map(function (a) { return a.toCSS(this.env); }).join(this.env.compress ? "," : ", "); - return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")"); - }, - min: function () { - return this._minmax(true, arguments); - }, - max: function () { - return this._minmax(false, arguments); - }, - "get-unit": function (n) { - return new(tree.Anonymous)(n.unit); - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - var colorCandidate = n.value, - returnColor; - returnColor = tree.Color.fromKeyword(colorCandidate); - if (returnColor) { - return returnColor; - } - if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) { - return new(tree.Color)(colorCandidate.slice(1)); - } - throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" }; - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - return Array.isArray(values.value) - ? values.value[index] : Array(values)[index]; - }, - length: function(values) { - var n = Array.isArray(values.value) ? values.value.length : 1; - return new tree.Dimension(n); - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require('./fs'), - path = require('path'), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) { mimetype += ';base64'; } - } - else { - useBase64 = /;base64$/.test(mimetype); - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "\"data:" + mimetype + ',' + buf + "\""; - return new(tree.URL)(new(tree.Anonymous)(uri)); - }, - - "svg-gradient": function(direction) { - - function throwArgumentDescriptor() { - throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" }; - } - - if (arguments.length < 3) { - throwArgumentDescriptor(); - } - var stops = Array.prototype.slice.call(arguments, 1), - gradientDirectionSvg, - gradientType = "linear", - rectangleDimension = 'x="0" y="0" width="1" height="1"', - useBase64 = true, - renderEnv = {compress: false}, - returner, - directionValue = direction.toCSS(renderEnv), - i, color, position, positionValue, alpha; - - switch (directionValue) { - case "to bottom": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - gradientType = "radial"; - gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" }; - } - returner = '' + - '' + - '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>'; - - for (i = 0; i < stops.length; i+= 1) { - if (stops[i].value) { - color = stops[i].value[0]; - position = stops[i].value[1]; - } else { - color = stops[i]; - position = undefined; - } - - if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) { - throwArgumentDescriptor(); - } - positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%"; - alpha = color.alpha; - returner += ''; - } - returner += '' + - ''; - - if (useBase64) { - try { - returner = require('./encoder').encodeBase64(returner); // TODO browser implementation - } catch(e) { - useBase64 = false; - } - } - - returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'"; - return new(tree.URL)(new(tree.Anonymous)(returner)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -// Math - -var mathFunctions = { - // name, unit - ceil: null, - floor: null, - sqrt: null, - abs: null, - tan: "", - sin: "", - cos: "", - atan: "rad", - asin: "rad", - acos: "rad" -}; - -function _math(fn, unit, n) { - if (!(n instanceof tree.Dimension)) { - throw { type: "Argument", message: "argument must be a number" }; - } - if (unit == null) { - unit = n.unit; - } else { - n = n.unify(); - } - return new(tree.Dimension)(fn(parseFloat(n.value)), unit); -} - -// ~ End of Math - -// Color Blending -// ref: http://www.w3.org/TR/compositing-1 - -function colorBlend(mode, color1, color2) { - var ab = color1.alpha, cb, // backdrop - as = color2.alpha, cs, // source - ar, cr, r = []; // result - - ar = as + ab * (1 - as); - for (var i = 0; i < 3; i++) { - cb = color1.rgb[i] / 255; - cs = color2.rgb[i] / 255; - cr = mode(cb, cs); - if (ar) { - cr = (as * cs + ab * (cb - - as * (cb + cs - cr))) / ar; - } - r[i] = cr * 255; - } - - return new(tree.Color)(r, ar); -} - -var colorBlendMode = { - multiply: function(cb, cs) { - return cb * cs; - }, - screen: function(cb, cs) { - return cb + cs - cb * cs; - }, - overlay: function(cb, cs) { - cb *= 2; - return (cb <= 1) - ? colorBlendMode.multiply(cb, cs) - : colorBlendMode.screen(cb - 1, cs); - }, - softlight: function(cb, cs) { - var d = 1, e = cb; - if (cs > 0.5) { - e = 1; - d = (cb > 0.25) ? Math.sqrt(cb) - : ((16 * cb - 12) * cb + 4) * cb; - } - return cb - (1 - 2 * cs) * e * (d - cb); - }, - hardlight: function(cb, cs) { - return colorBlendMode.overlay(cs, cb); - }, - difference: function(cb, cs) { - return Math.abs(cb - cs); - }, - exclusion: function(cb, cs) { - return cb + cs - 2 * cb * cs; - }, - - // non-w3c functions: - average: function(cb, cs) { - return (cb + cs) / 2; - }, - negation: function(cb, cs) { - return 1 - Math.abs(cb + cs - 1); - } -}; - -// ~ End of Color Blending - -tree.defaultFunc = { - eval: function () { - var v = this.value_, e = this.error_; - if (e) { - throw e; - } - if (v != null) { - return v ? tree.True : tree.False; - } - }, - value: function (v) { - this.value_ = v; - }, - error: function (e) { - this.error_ = e; - }, - reset: function () { - this.value_ = this.error_ = null; - } -}; - -function initFunctions() { - var f, tf = tree.functions; - - // math - for (f in mathFunctions) { - if (mathFunctions.hasOwnProperty(f)) { - tf[f] = _math.bind(null, Math[f], mathFunctions[f]); - } - } - - // color blending - for (f in colorBlendMode) { - if (colorBlendMode.hasOwnProperty(f)) { - tf[f] = colorBlend.bind(null, colorBlendMode[f]); - } - } - - // default - f = tree.defaultFunc; - tf["default"] = f.eval.bind(f); - -} initFunctions(); - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.fround = function(env, value) { - var p = env && env.numPrecision; - //add "epsilon" to ensure numbers like 1.000000005 (represented as 1.000000004999....) are properly rounded... - return (p == null) ? value : Number((value + 2e-16).toFixed(p)); -}; - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); - -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); - -(function (tree) { - -tree.debugInfo = function(env, ctx, lineSeperator) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:\/\\])/g, function (a) { - if (a == '\\') { - a = '\/'; - } - return '\\' + a; - }) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - r = fun.call(obj, obj[i]); - if (r) { return r; } - } - return null; -}; - -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(false); }).join(', ') + ']'; - } else { - return obj.toCSS(false); - } -}; - -tree.toCSS = function (env) { - var strs = []; - this.genCSS(env, { - add: function(chunk, fileInfo, index) { - strs.push(chunk); - }, - isEmpty: function () { - return strs.length === 0; - } - }); - return strs.join(''); -}; - -tree.outputRuleset = function (env, output, rules) { - var ruleCnt = rules.length, i; - env.tabLevel = (env.tabLevel | 0) + 1; - - // Compressed - if (env.compress) { - output.add('{'); - for (i = 0; i < ruleCnt; i++) { - rules[i].genCSS(env, output); - } - output.add('}'); - env.tabLevel--; - return; - } - - // Non-compressed - var tabSetStr = '\n' + Array(env.tabLevel).join(" "), tabRuleStr = tabSetStr + " "; - if (!ruleCnt) { - output.add(" {" + tabSetStr + '}'); - } else { - output.add(" {" + tabRuleStr); - rules[0].genCSS(env, output); - for (i = 1; i < ruleCnt; i++) { - output.add(tabRuleStr); - rules[i].genCSS(env, output); - } - output.add(tabSetStr + '}'); - } - - env.tabLevel--; -}; - -})(require('./tree')); - -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } - return this; - }, - genCSS: function (env, output) { - output.add("alpha(opacity="); - - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - - output.add(")"); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Anonymous = function (value, index, currentFileInfo, mapLines) { - this.value = value; - this.index = index; - this.mapLines = mapLines; - this.currentFileInfo = currentFileInfo; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - eval: function () { - return new tree.Anonymous(this.value, this.index, this.currentFileInfo, this.mapLines); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - }, - genCSS: function (env, output) { - output.add(this.value, this.currentFileInfo, this.index, this.mapLines); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - }, - genCSS: function (env, output) { - output.add(this.key + '='); - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - if (this.args) { - this.args = visitor.visitArray(this.args); - } - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - return new tree.Call(this.name, args, this.index, this.currentFileInfo); - }, - - genCSS: function (env, output) { - output.add(this.name + "(", this.currentFileInfo, this.index); - - for(var i = 0; i < this.args.length; i++) { - this.args[i].genCSS(env, output); - if (i + 1 < this.args.length) { - output.add(", "); - } - } - - output.add(")"); - }, - - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; - -var transparentKeyword = "transparent"; - -tree.Color.prototype = { - type: "Color", - eval: function () { return this; }, - luma: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255; - - r = (r <= 0.03928) ? r / 12.92 : Math.pow(((r + 0.055) / 1.055), 2.4); - g = (g <= 0.03928) ? g / 12.92 : Math.pow(((g + 0.055) / 1.055), 2.4); - b = (b <= 0.03928) ? b / 12.92 : Math.pow(((b + 0.055) / 1.055), 2.4); - - return 0.2126 * r + 0.7152 * g + 0.0722 * b; - }, - - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress, - alpha = tree.fround(env, this.alpha); - - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - if (alpha < 1) { - if (alpha === 0 && this.isTransparentKeyword) { - return transparentKeyword; - } - return "rgba(" + this.rgb.map(function (c) { - return clamp(Math.round(c), 255); - }).concat(clamp(alpha, 1)) - .join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.toRGB(); - - if (compress) { - var splitcolor = color.split(''); - - // Convert color to short format - if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) { - color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5]; - } - } - - return color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var rgb = []; - var alpha = this.alpha * (1 - other.alpha) + other.alpha; - for (var c = 0; c < 3; c++) { - rgb[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(rgb, alpha); - }, - - toRGB: function () { - return toHex(this.rgb); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - return toHex([this.alpha * 255].concat(this.rgb)); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - -tree.Color.fromKeyword = function(keyword) { - keyword = keyword.toLowerCase(); - - if (tree.colors.hasOwnProperty(keyword)) { - // detect named color - return new(tree.Color)(tree.colors[keyword].slice(1)); - } - if (keyword === transparentKeyword) { - var transparent = new(tree.Color)([0, 0, 0], 0); - transparent.isTransparentKeyword = true; - return transparent; - } -}; - -function toHex(v) { - return '#' + v.map(function (c) { - c = clamp(Math.round(c), 255); - return (c < 16 ? '0' : '') + c.toString(16); - }).join(''); -} - -function clamp(v, max) { - return Math.min(Math.max(v, 0), max); -} - -})(require('../tree')); - -(function (tree) { - -tree.Comment = function (value, silent, index, currentFileInfo) { - this.value = value; - this.silent = !!silent; - this.currentFileInfo = currentFileInfo; -}; -tree.Comment.prototype = { - type: "Comment", - genCSS: function (env, output) { - if (this.debugInfo) { - output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index); - } - output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n - }, - toCSS: tree.toCSS, - isSilent: function(env) { - var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced), - isCompressed = env.compress && !this.value.match(/^\/\*!/); - return this.silent || isReference || isCompressed; - }, - eval: function () { return this; }, - markReferenced: function () { - this.isReferenced = true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<' || op === '<='; - case 0: return op === '=' || op === '>=' || op === '=<' || op === '<='; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.DetachedRuleset = function (ruleset, frames) { - this.ruleset = ruleset; - this.frames = frames; -}; -tree.DetachedRuleset.prototype = { - type: "DetachedRuleset", - accept: function (visitor) { - this.ruleset = visitor.visit(this.ruleset); - }, - eval: function (env) { - var frames = this.frames || env.frames.slice(0); - return new tree.DetachedRuleset(this.ruleset, frames); - }, - callEval: function (env) { - return this.ruleset.eval(this.frames ? new(tree.evalEnv)(env, this.frames.concat(env.frames)) : env); - } -}; -})(require('../tree')); - -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - genCSS: function (env, output) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = tree.fround(env, this.value), - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && this.unit.isLength()) { - output.add(strValue); - return; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - output.add(strValue); - this.unit.genCSS(env, output); - }, - toCSS: tree.toCSS, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - /*jshint noempty:false */ - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a, b, - aValue, bValue; - - if (this.unit.isEmpty() || other.unit.isEmpty()) { - a = this; - b = other; - } else { - a = this.unify(); - b = other.unify(); - if (a.unit.compare(b.unit) !== 0) { - return -1; - } - } - aValue = a.value; - bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'px', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, targetUnit, derivedConversions = {}, applyUnit; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - applyUnit = function (atomicUnit, denominator) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(applyUnit); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'px': 0.0254 / 96, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - genCSS: function (env, output) { - if (this.numerator.length >= 1) { - output.add(this.numerator[0]); - } else - if (this.denominator.length >= 1) { - output.add(this.denominator[0]); - } else - if ((!env || !env.strictUnits) && this.backupUnit) { - output.add(this.backupUnit); - } - }, - toCSS: tree.toCSS, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isLength: function () { - return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/)); - }, - - isEmpty: function () { - return this.numerator.length === 0 && this.denominator.length === 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length === 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, result = {}, mapUnit; - - mapUnit = function (atomicUnit) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }; - - for (var groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(mapUnit); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Directive = function (name, value, rules, index, currentFileInfo, debugInfo) { - this.name = name; - this.value = value; - if (rules) { - this.rules = rules; - this.rules.allowImports = true; - } - this.index = index; - this.currentFileInfo = currentFileInfo; - this.debugInfo = debugInfo; -}; - -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - var value = this.value, rules = this.rules; - if (rules) { - rules = visitor.visit(rules); - } - if (value) { - value = visitor.visit(value); - } - }, - genCSS: function (env, output) { - var value = this.value, rules = this.rules; - output.add(this.name, this.currentFileInfo, this.index); - if (value) { - output.add(' '); - value.genCSS(env, output); - } - if (rules) { - tree.outputRuleset(env, output, [rules]); - } else { - output.add(';'); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var value = this.value, rules = this.rules; - if (value) { - value = value.eval(env); - } - if (rules) { - rules = rules.eval(env); - rules.root = true; - } - return new(tree.Directive)(this.name, value, rules, - this.index, this.currentFileInfo, this.debugInfo); - }, - variable: function (name) { if (this.rules) return tree.Ruleset.prototype.variable.call(this.rules, name); }, - find: function () { if (this.rules) return tree.Ruleset.prototype.find.apply(this.rules, arguments); }, - rulesets: function () { if (this.rules) return tree.Ruleset.prototype.rulesets.apply(this.rules); }, - markReferenced: function () { - var i, rules; - this.isReferenced = true; - if (this.rules) { - rules = this.rules.rules; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Element = function (combinator, value, index, currentFileInfo) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - var value = this.value; - this.combinator = visitor.visit(this.combinator); - if (typeof value === "object") { - this.value = visitor.visit(value); - } - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index, - this.currentFileInfo); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env), this.currentFileInfo, this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value === '' && this.combinator.value.charAt(0) === '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - _outputMap: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : ' + ', - '~' : ' ~ ', - '>' : ' > ', - '|' : '|', - '^' : ' ^ ', - '^^' : ' ^^ ' - }, - _outputMapCompressed: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : '+', - '~' : '~', - '>' : '>', - '|' : '|', - '^' : '^', - '^^' : '^^' - }, - genCSS: function (env, output) { - output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - genCSS: function (env, output) { - for(var i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i + 1 < this.value.length) { - output.add(" "); - } - } - }, - toCSS: tree.toCSS, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - this.object_id = tree.Extend.next_id++; - this.parent_ids = [this.object_id]; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; -tree.Extend.next_id = 0; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i, - selectorElements; - - for(i = 0; i < selectors.length; i++) { - selectorElements = selectors[i].elements; - // duplicate the logic in genCSS function inside the selector node. - // future TODO - move both logics into the selector joiner visitor - if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") { - selectorElements[0].combinator.value = ' '; - } - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); - -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined || this.options.inline) { - this.css = !this.options.less || this.options.inline; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - this.path = visitor.visit(this.path); - if (!this.options.inline && this.root) { - this.root = visitor.visit(this.root); - } - }, - genCSS: function (env, output) { - if (this.css) { - output.add("@import ", this.currentFileInfo, this.index); - this.path.genCSS(env, output); - if (this.features) { - output.add(" "); - this.features.genCSS(env, output); - } - output.add(';'); - } - }, - toCSS: tree.toCSS, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - - if (!(path instanceof tree.URL)) { - if (rootpath) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath +pathValue; - } - } - path.value = env.normalizePath(path.value); - } - - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { - if (typeof this.skip === "function") { - this.skip = this.skip(); - } - if (this.skip) { - return []; - } - } - - if (this.options.inline) { - //todo needs to reference css file not import - var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true); - return this.features ? new(tree.Media)([contents], this.features.value) : [contents]; - } else if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" , - index: this.index }; - } - - var variables = env.frames[0].variables(); - for (var k in variables) { - if (variables.hasOwnProperty(k)) { - /*jshint loopfunc:true */ - context[k.slice(1)] = { - value: variables[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message.replace(/["]/g, "'") + "'" , - index: this.index }; - } - if (typeof(result) === 'number') { - return new(tree.Dimension)(result); - } else if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Keyword = function (value) { this.value = value; }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - genCSS: function (env, output) { - if (this.value === '%') { throw { type: "Syntax", message: "Invalid % without number" }; } - output.add(this.value); - }, - toCSS: tree.toCSS, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); - -(function (tree) { - -tree.Media = function (value, features, index, currentFileInfo) { - this.index = index; - this.currentFileInfo = currentFileInfo; - - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.rules = [new(tree.Ruleset)(selectors, value)]; - this.rules[0].allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - }, - genCSS: function (env, output) { - output.add('@media ', this.currentFileInfo, this.index); - this.features.genCSS(env, output); - tree.outputRuleset(env, output, this.rules); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)(null, [], this.index, this.currentFileInfo); - if(this.debugInfo) { - this.rules[0].debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.rules[0]); - media.rules = [this.rules[0].eval(env)]; - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env); - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', this.index, this.currentFileInfo), - sels = [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)]; - sels[0].mediaEmpty = true; - return sels; - }, - markReferenced: function () { - var i, rules = this.rules[0].rules; - this.rules[0].markReferenced(); - this.isReferenced = true; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - if (!selectors) - return; - this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])]; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = (args && args.length) ? args : null; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - if (this.selector) { - this.selector = visitor.visit(this.selector); - } - if (this.arguments) { - this.arguments = visitor.visitArray(this.arguments); - } - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule, - candidates = [], candidate, conditionResult = [], defaultFunc = tree.defaultFunc, - defaultResult, defNone = 0, defTrue = 1, defFalse = 2, count, originalRuleset; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - - // To make `default()` function independent of definition order we have two "subpasses" here. - // At first we evaluate each guard *twice* (with `default() == true` and `default() == false`), - // and build candidate list with corresponding flags. Then, when we know all possible matches, - // we make a final decision. - - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - - if (mixin.matchArgs(args, env)) { - candidate = {mixin: mixin, group: defNone}; - - if (mixin.matchCondition) { - for (f = 0; f < 2; f++) { - defaultFunc.value(f); - conditionResult[f] = mixin.matchCondition(args, env); - } - if (conditionResult[0] || conditionResult[1]) { - if (conditionResult[0] != conditionResult[1]) { - candidate.group = conditionResult[1] ? - defTrue : defFalse; - } - - candidates.push(candidate); - } - } - else { - candidates.push(candidate); - } - - match = true; - } - } - - defaultFunc.reset(); - - count = [0, 0, 0]; - for (m = 0; m < candidates.length; m++) { - count[candidates[m].group]++; - } - - if (count[defNone] > 0) { - defaultResult = defFalse; - } else { - defaultResult = defTrue; - if ((count[defTrue] + count[defFalse]) > 1) { - throw { type: 'Runtime', - message: 'Ambiguous use of `default()` found when matching for `' - + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - for (m = 0; m < candidates.length; m++) { - candidate = candidates[m].group; - if ((candidate === defNone) || (candidate === defaultResult)) { - try { - mixin = candidates[m].mixin; - if (!(mixin instanceof tree.mixin.Definition)) { - originalRuleset = mixin.originalRuleset || mixin; - mixin = new tree.mixin.Definition("", [], mixin.rules, null, false); - mixin.originalRuleset = originalRuleset; - } - Array.prototype.push.apply( - rules, mixin.evalCall(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - } - - if (match) { - if (!this.currentFileInfo || !this.currentFileInfo.reference) { - for (i = 0; i < rules.length; i++) { - rule = rules[i]; - if (rule.markReferenced) { - rule.markReferenced(); - } - } - } - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - }, - format: function (args) { - return this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")"; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic, frames) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1; } - else { return count; } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = frames; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - if (this.params && this.params.length) { - this.params = visitor.visitArray(this.params); - } - this.rules = visitor.visitArray(this.rules); - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - /*jshint boss:true */ - var frame = new(tree.Ruleset)(null, null), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex, argsLength = 0; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - argsLength = args.length; - - for(i = 0; i < argsLength; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.prependRule(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) { continue; } - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic) { - varargs = []; - for (j = argIndex; j < argsLength; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.prependRule(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + argsLength + ' for ' + this.arity + ')' }; - } - - frame.prependRule(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < argsLength; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env) { - return new tree.mixin.Definition(this.name, this.params, this.rules, this.condition, this.variadic, this.frames || env.frames.slice(0)); - }, - evalCall: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames ? this.frames.concat(env.frames) : env.frames, - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - rules, ruleset; - - frame.prependRule(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules); - ruleset.originalRuleset = this; - ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames))); - if (important) { - ruleset = this.parent.makeImportant.apply(ruleset); - } - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames ? this.frames.concat(env.frames) : env.frames), args, [])] // the parameter variables - .concat(this.frames) // the parent namespace/mixin frames - .concat(env.frames)))) { // the current environment frames - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (! this.variadic) { - if (argsLength < this.required) { return false; } - if (argsLength > this.params.length) { return false; } - } else { - if (argsLength < (this.required - 1)) { return false; } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('-'); - this.value.genCSS(env, output); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env); - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - a = a.toColor(); - } - if (b instanceof tree.Dimension && a instanceof tree.Color) { - b = b.toColor(); - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - genCSS: function (env, output) { - this.operands[0].genCSS(env, output); - if (this.isSpaced) { - output.add(" "); - } - output.add(this.op); - if (this.isSpaced) { - output.add(" "); - } - this.operands[1].genCSS(env, output); - }, - toCSS: tree.toCSS -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('('); - this.value.genCSS(env, output); - output.add(')'); - }, - toCSS: tree.toCSS, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - genCSS: function (env, output) { - if (!this.escaped) { - output.add(this.quote, this.currentFileInfo, this.index); - } - output.add(this.value); - if (!this.escaped) { - output.add(this.quote); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left, right; - - // when comparing quoted strings allow the quote to differ - if (x.type === "Quoted" && !this.escaped && !x.escaped) { - left = x.value; - right = this.value; - } else { - left = this.toCSS(); - right = x.toCSS(); - } - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value || value instanceof tree.Ruleset) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.merge = merge; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - this.variable = name.charAt && (name.charAt(0) === '@'); -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index); - try { - this.value.genCSS(env, output); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index); - }, - toCSS: tree.toCSS, - eval: function (env) { - var strictMathBypass = false, name = this.name, evaldValue; - if (typeof name !== "string") { - // expand 'primitive' name directly to get - // things faster (~10% for benchmark.less): - name = (name.length === 1) - && (name[0] instanceof tree.Keyword) - ? name[0].value : evalName(env, name); - } - if (name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - evaldValue = this.value.eval(env); - - if (!this.variable && evaldValue.type === "DetachedRuleset") { - throw { message: "Rulesets cannot be evaluated on a property.", - index: this.index, filename: this.currentFileInfo.filename }; - } - - return new(tree.Rule)(name, - evaldValue, - this.important, - this.merge, - this.index, this.currentFileInfo, this.inline); - } - catch(e) { - if (typeof e.index !== 'number') { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - } - throw e; - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.merge, - this.index, this.currentFileInfo, this.inline); - } -}; - -function evalName(env, name) { - var value = "", i, n = name.length, - output = {add: function (s) {value += s;}}; - for (i = 0; i < n; i++) { - name[i].eval(env).genCSS(env, output); - } - return value; -} - -})(require('../tree')); - -(function (tree) { - -tree.RulesetCall = function (variable) { - this.variable = variable; -}; -tree.RulesetCall.prototype = { - type: "RulesetCall", - accept: function (visitor) { - }, - eval: function (env) { - var detachedRuleset = new(tree.Variable)(this.variable).eval(env); - return detachedRuleset.callEval(env); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - if (this.paths) { - visitor.visitArray(this.paths, true); - } else if (this.selectors) { - this.selectors = visitor.visitArray(this.selectors); - } - if (this.rules && this.rules.length) { - this.rules = visitor.visitArray(this.rules); - } - }, - eval: function (env) { - var thisSelectors = this.selectors, selectors, - selCnt, selector, i, defaultFunc = tree.defaultFunc, hasOnePassingSelector = false; - - if (thisSelectors && (selCnt = thisSelectors.length)) { - selectors = []; - defaultFunc.error({ - type: "Syntax", - message: "it is currently only allowed in parametric mixin guards," - }); - for (i = 0; i < selCnt; i++) { - selector = thisSelectors[i].eval(env); - selectors.push(selector); - if (selector.evaldCondition) { - hasOnePassingSelector = true; - } - } - defaultFunc.reset(); - } else { - hasOnePassingSelector = true; - } - - var rules = this.rules ? this.rules.slice(0) : null, - ruleset = new(tree.Ruleset)(selectors, rules, this.strictImports), - rule, subRule; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - if (!hasOnePassingSelector) { - rules.length = 0; - } - - // push the current ruleset to the frames stack - var envFrames = env.frames; - envFrames.unshift(ruleset); - - // currrent selectors - var envSelectors = env.selectors; - if (!envSelectors) { - env.selectors = envSelectors = []; - } - envSelectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - var rsRules = ruleset.rules, rsRuleCnt = rsRules ? rsRules.length : 0; - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Definition || rsRules[i] instanceof tree.DetachedRuleset) { - rsRules[i] = rsRules[i].eval(env); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Call) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } else if (rsRules[i] instanceof tree.RulesetCall) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).rules.filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope at all - return false; - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (i = 0; i < rsRules.length; i++) { - rule = rsRules[i]; - if (! (rule instanceof tree.mixin.Definition || rule instanceof tree.DetachedRuleset)) { - rsRules[i] = rule = rule.eval ? rule.eval(env) : rule; - } - } - - // Evaluate everything else - for (i = 0; i < rsRules.length; i++) { - rule = rsRules[i]; - // for rulesets, check if it is a css guard and can be removed - if (rule instanceof tree.Ruleset && rule.selectors && rule.selectors.length === 1) { - // check if it can be folded in (e.g. & where) - if (rule.selectors[0].isJustParentSelector()) { - rsRules.splice(i--, 1); - - for(var j = 0; j < rule.rules.length; j++) { - subRule = rule.rules[j]; - if (!(subRule instanceof tree.Rule) || !subRule.variable) { - rsRules.splice(++i, 0, subRule); - } - } - } - } - } - - // Pop the stack - envFrames.shift(); - envSelectors.shift(); - - if (env.mediaBlocks) { - for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var rules = this.rules, i, importRules; - if (!rules) { return; } - - for (i = 0; i < rules.length; i++) { - if (rules[i] instanceof tree.Import) { - importRules = rules[i].eval(env); - if (importRules && importRules.length) { - rules.splice.apply(rules, [i, 1].concat(importRules)); - i+= importRules.length-1; - } else { - rules.splice(i, 1, importRules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - // lets you call a css selector with a guard - matchCondition: function (args, env) { - var lastSelector = this.selectors[this.selectors.length-1]; - if (!lastSelector.evaldCondition) { - return false; - } - if (lastSelector.condition && - !lastSelector.condition.eval( - new(tree.evalEnv)(env, - env.frames))) { - return false; - } - return true; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (!this._variables) { - this._variables = !this.rules ? {} : this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - return this._variables; - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (!this.rules) { return null; } - - var _Ruleset = tree.Ruleset, _MixinDefinition = tree.mixin.Definition, - filtRules = [], rules = this.rules, cnt = rules.length, - i, rule; - - for (i = 0; i < cnt; i++) { - rule = rules[i]; - if ((rule instanceof _Ruleset) || (rule instanceof _MixinDefinition)) { - filtRules.push(rule); - } - } - - return filtRules; - }, - prependRule: function (rule) { - var rules = this.rules; - if (rules) { rules.unshift(rule); } else { this.rules = [ rule ]; } - }, - find: function (selector, self) { - self = self || this; - var rules = [], match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key]; } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - match = selector.match(rule.selectors[j]); - if (match) { - if (selector.elements.length > match) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(match)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - this._lookups[key] = rules; - return rules; - }, - genCSS: function (env, output) { - var i, j, - ruleNodes = [], - rulesetNodes = [], - rulesetNodeCnt, - debugInfo, // Line number debugging - rule, - path; - - env.tabLevel = (env.tabLevel || 0); - - if (!this.root) { - env.tabLevel++; - } - - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "), - sep; - - for (i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - if (rule.rules || (rule instanceof tree.Media) || rule instanceof tree.Directive || (this.root && rule instanceof tree.Comment)) { - rulesetNodes.push(rule); - } else { - ruleNodes.push(rule); - } - } - - // If this is the root node, we don't render - // a selector, or {}. - if (!this.root) { - debugInfo = tree.debugInfo(env, this, tabSetStr); - - if (debugInfo) { - output.add(debugInfo); - output.add(tabSetStr); - } - - var paths = this.paths, pathCnt = paths.length, - pathSubCnt; - - sep = env.compress ? ',' : (',\n' + tabSetStr); - - for (i = 0; i < pathCnt; i++) { - path = paths[i]; - if (!(pathSubCnt = path.length)) { continue; } - if (i > 0) { output.add(sep); } - - env.firstSelector = true; - path[0].genCSS(env, output); - - env.firstSelector = false; - for (j = 1; j < pathSubCnt; j++) { - path[j].genCSS(env, output); - } - } - - output.add((env.compress ? '{' : ' {\n') + tabRuleStr); - } - - // Compile rules and rulesets - for (i = 0; i < ruleNodes.length; i++) { - rule = ruleNodes[i]; - - // @page{ directive ends up with root elements inside it, a mix of rules and rulesets - // In this instance we do not know whether it is the last property - if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) { - env.lastRule = true; - } - - if (rule.genCSS) { - rule.genCSS(env, output); - } else if (rule.value) { - output.add(rule.value.toString()); - } - - if (!env.lastRule) { - output.add(env.compress ? '' : ('\n' + tabRuleStr)); - } else { - env.lastRule = false; - } - } - - if (!this.root) { - output.add((env.compress ? '}' : '\n' + tabSetStr + '}')); - env.tabLevel--; - } - - sep = (env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr); - rulesetNodeCnt = rulesetNodes.length; - if (rulesetNodeCnt) { - if (ruleNodes.length && sep) { output.add(sep); } - rulesetNodes[0].genCSS(env, output); - for (i = 1; i < rulesetNodeCnt; i++) { - if (sep) { output.add(sep); } - rulesetNodes[i].genCSS(env, output); - } - } - - if (!output.isEmpty() && !env.compress && this.firstRoot) { - output.add('\n'); - } - }, - - toCSS: tree.toCSS, - - markReferenced: function () { - if (!this.selectors) { - return; - } - for (var s = 0; s < this.selectors.length; s++) { - this.selectors[s].markReferenced(); - } - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for (i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for (j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length === 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', el.index, el.currentFileInfo)); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for (k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = selector.createDerived([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for (i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length === 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for (i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); - -(function (tree) { - -tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) { - this.elements = elements; - this.extendList = extendList; - this.condition = condition; - this.currentFileInfo = currentFileInfo || {}; - this.isReferenced = isReferenced; - if (!condition) { - this.evaldCondition = true; - } -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - if (this.elements) { - this.elements = visitor.visitArray(this.elements); - } - if (this.extendList) { - this.extendList = visitor.visitArray(this.extendList); - } - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - createDerived: function(elements, extendList, evaldCondition) { - evaldCondition = (evaldCondition != null) ? evaldCondition : this.evaldCondition; - var newSelector = new(tree.Selector)(elements, extendList || this.extendList, null, this.index, this.currentFileInfo, this.isReferenced); - newSelector.evaldCondition = evaldCondition; - newSelector.mediaEmpty = this.mediaEmpty; - return newSelector; - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - olen, i; - - other.CacheElements(); - - olen = other._elements.length; - if (olen === 0 || len < olen) { - return 0; - } else { - for (i = 0; i < olen; i++) { - if (elements[i].value !== other._elements[i]) { - return 0; - } - } - } - - return olen; // return number of matched elements - }, - CacheElements: function(){ - var css = '', len, v, i; - - if( !this._elements ){ - - len = this.elements.length; - for(i = 0; i < len; i++){ - - v = this.elements[i]; - css += v.combinator.value; - - if( !v.value.value ){ - css += v.value; - continue; - } - - if( typeof v.value.value !== "string" ){ - css = ''; - break; - } - css += v.value.value; - } - - this._elements = css.match(/[,&#\.\w-]([\w-]|(\\.))*/g); - - if (this._elements) { - if (this._elements[0] === "&") { - this._elements.shift(); - } - - } else { - this._elements = []; - } - - } - }, - isJustParentSelector: function() { - return !this.mediaEmpty && - this.elements.length === 1 && - this.elements[0].value === '&' && - (this.elements[0].combinator.value === ' ' || this.elements[0].combinator.value === ''); - }, - eval: function (env) { - var evaldCondition = this.condition && this.condition.eval(env), - elements = this.elements, extendList = this.extendList; - - elements = elements && elements.map(function (e) { return e.eval(env); }); - extendList = extendList && extendList.map(function(extend) { return extend.eval(env); }); - - return this.createDerived(elements, extendList, evaldCondition); - }, - genCSS: function (env, output) { - var i, element; - if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") { - output.add(' ', this.currentFileInfo, this.index); - } - if (!this._css) { - //TODO caching? speed comparison? - for(i = 0; i < this.elements.length; i++) { - element = this.elements[i]; - element.genCSS(env, output); - } - } - }, - toCSS: tree.toCSS, - markReferenced: function () { - this.isReferenced = true; - }, - getIsReferenced: function() { - return !this.currentFileInfo.reference || this.isReferenced; - }, - getIsOutput: function() { - return this.evaldCondition; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - eval: function () { return this; } -}; - -})(require('../tree')); - -(function (tree) { - -tree.URL = function (val, currentFileInfo, isEvald) { - this.value = val; - this.currentFileInfo = currentFileInfo; - this.isEvald = isEvald; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add("url("); - this.value.genCSS(env, output); - output.add(")"); - }, - toCSS: tree.toCSS, - eval: function (ctx) { - var val = this.value.eval(ctx), - rootpath; - - if (!this.isEvald) { - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - val.value = ctx.normalizePath(val.value); - - // Add url args if enabled - if (ctx.urlArgs) { - if (!val.value.match(/^\s*data:/)) { - var delimiter = val.value.indexOf('?') === -1 ? '?' : '&'; - var urlArgs = delimiter + ctx.urlArgs; - if (val.value.indexOf('#') !== -1) { - val.value = val.value.replace('#', urlArgs + '#'); - } else { - val.value += urlArgs; - } - } - } - } - - return new(tree.URL)(val, this.currentFileInfo, true); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - genCSS: function (env, output) { - var i; - for(i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i+1 < this.value.length) { - output.add((env && env.compress) ? ',' : ', '); - } - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { - this.name = name; - this.index = index; - this.currentFileInfo = currentFileInfo || {}; -}; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, name = this.name; - - if (name.indexOf('@@') === 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - variable = tree.find(env.frames, function (frame) { - var v = frame.variable(name); - if (v) { - return v.value.eval(env); - } - }); - if (variable) { - this.evaluating = false; - return variable; - } else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); - -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // map - filename to contents of all the files - 'contentsIgnoredChars', // map - filename to lines at the begining of each file to ignore - 'relativeUrls', // option - whether to adjust URL's to be relative - 'rootpath', // option - rootpath to append to URL's - 'strictImports', // option - - 'insecure', // option - whether to allow imports from insecure ssl hosts - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true - 'mime', // browser only - mime type for sheet import - 'useFileCache', // browser only - whether to use the per file session cache - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' - absolute path to the entry file - // 'reference' - whether the file should not be output and only output parts that are referenced - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.contentsIgnoredChars) { this.contentsIgnoredChars = {}; } - if (!this.files) { this.files = {}; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits', // whether units need to evaluate correctly - 'cleancss', // whether to compress with clean-css - 'sourceMap', // whether to output a source map - 'importMultiple', // whether we are currently importing multiple copies - 'urlArgs' // whether to add args into url tokens - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - tree.evalEnv.prototype.normalizePath = function( path ) { - var - segments = path.split("/").reverse(), - segment; - - path = []; - while (segments.length !== 0 ) { - segment = segments.pop(); - switch( segment ) { - case ".": - break; - case "..": - if ((path.length === 0) || (path[path.length - 1] === "..")) { - path.push( segment ); - } else { - path.pop(); - } - break; - default: - path.push( segment ); - break; - } - } - - return path.join("/"); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - }; - -})(require('./tree')); - -(function (tree) { - - var _visitArgs = { visitDeeper: true }, - _hasIndexed = false; - - function _noop(node) { - return node; - } - - function indexNodeTypes(parent, ticker) { - // add .typeIndex to tree node types for lookup table - var key, child; - for (key in parent) { - if (parent.hasOwnProperty(key)) { - child = parent[key]; - switch (typeof child) { - case "function": - // ignore bound functions directly on tree which do not have a prototype - // or aren't nodes - if (child.prototype && child.prototype.type) { - child.prototype.typeIndex = ticker++; - } - break; - case "object": - ticker = indexNodeTypes(child, ticker); - break; - } - } - } - return ticker; - } - - tree.visitor = function(implementation) { - this._implementation = implementation; - this._visitFnCache = []; - - if (!_hasIndexed) { - indexNodeTypes(tree, 1); - _hasIndexed = true; - } - }; - - tree.visitor.prototype = { - visit: function(node) { - if (!node) { - return node; - } - - var nodeTypeIndex = node.typeIndex; - if (!nodeTypeIndex) { - return node; - } - - var visitFnCache = this._visitFnCache, - impl = this._implementation, - aryIndx = nodeTypeIndex << 1, - outAryIndex = aryIndx | 1, - func = visitFnCache[aryIndx], - funcOut = visitFnCache[outAryIndex], - visitArgs = _visitArgs, - fnName; - - visitArgs.visitDeeper = true; - - if (!func) { - fnName = "visit" + node.type; - func = impl[fnName] || _noop; - funcOut = impl[fnName + "Out"] || _noop; - visitFnCache[aryIndx] = func; - visitFnCache[outAryIndex] = funcOut; - } - - if (func !== _noop) { - var newNode = func.call(impl, node, visitArgs); - if (impl.isReplacing) { - node = newNode; - } - } - - if (visitArgs.visitDeeper && node && node.accept) { - node.accept(this); - } - - if (funcOut != _noop) { - funcOut.call(impl, node); - } - - return node; - }, - visitArray: function(nodes, nonReplacing) { - if (!nodes) { - return nodes; - } - - var cnt = nodes.length, i; - - // Non-replacing - if (nonReplacing || !this._implementation.isReplacing) { - for (i = 0; i < cnt; i++) { - this.visit(nodes[i]); - } - return nodes; - } - - // Replacing - var out = []; - for (i = 0; i < cnt; i++) { - var evald = this.visit(nodes[i]); - if (!evald.splice) { - out.push(evald); - } else if (evald.length) { - this.flatten(evald, out); - } - } - return out; - }, - flatten: function(arr, out) { - if (!out) { - out = []; - } - - var cnt, i, item, - nestedCnt, j, nestedItem; - - for (i = 0, cnt = arr.length; i < cnt; i++) { - item = arr[i]; - if (!item.splice) { - out.push(item); - continue; - } - - for (j = 0, nestedCnt = item.length; j < nestedCnt; j++) { - nestedItem = item[j]; - if (!nestedItem.splice) { - out.push(nestedItem); - } else if (nestedItem.length) { - this.flatten(nestedItem, out); - } - } - } - - return out; - } - }; - -})(require('./tree')); -(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv, onceFileDetectionMap, recursionDetector) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - this.onceFileDetectionMap = onceFileDetectionMap || {}; - this.recursionDetector = {}; - if (recursionDetector) { - for(var fullFilename in recursionDetector) { - if (recursionDetector.hasOwnProperty(fullFilename)) { - this.recursionDetector[fullFilename] = true; - } - } - } - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode, - inlineCSS = importNode.options.inline; - - if (!importNode.css || inlineCSS) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - - if (importNode.options.multiple) { - env.importMultiple = true; - } - - this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, importedAtRoot, fullPath) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - - if (!env.importMultiple) { - if (importedAtRoot) { - importNode.skip = true; - } else { - importNode.skip = function() { - if (fullPath in importVisitor.onceFileDetectionMap) { - return true; - } - importVisitor.onceFileDetectionMap[fullPath] = true; - return false; - }; - } - } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - importNode.importedFilename = fullPath; - var duplicateImport = importedAtRoot || fullPath in importVisitor.recursionDetector; - - if (!inlineCSS && (env.importMultiple || !duplicateImport)) { - importVisitor.recursionDetector[fullPath] = true; - new(tree.importVisitor)(importVisitor._importer, subFinish, env, importVisitor.onceFileDetectionMap, importVisitor.recursionDetector) - .run(root); - return; - } - } - - subFinish(); - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree')); -(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1], - paths = [], selectors; - - this.contexts.push(paths); - - if (! rulesetNode.root) { - selectors = rulesetNode.selectors; - if (selectors) { - selectors = selectors.filter(function(selector) { return selector.getIsOutput(); }); - rulesetNode.selectors = selectors.length ? selectors : (selectors = null); - if (selectors) { rulesetNode.joinSelectors(paths, context, selectors); } - } - if (!selectors) { rulesetNode.rules = null; } - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree')); -(function (tree) { - tree.toCSSVisitor = function(env) { - this._visitor = new tree.visitor(this); - this._env = env; - }; - - tree.toCSSVisitor.prototype = { - isReplacing: true, - run: function (root) { - return this._visitor.visit(root); - }, - - visitRule: function (ruleNode, visitArgs) { - if (ruleNode.variable) { - return []; - } - return ruleNode; - }, - - visitMixinDefinition: function (mixinNode, visitArgs) { - // mixin definitions do not get eval'd - this means they keep state - // so we have to clear that state here so it isn't used if toCSS is called twice - mixinNode.frames = []; - return []; - }, - - visitExtend: function (extendNode, visitArgs) { - return []; - }, - - visitComment: function (commentNode, visitArgs) { - if (commentNode.isSilent(this._env)) { - return []; - } - return commentNode; - }, - - visitMedia: function(mediaNode, visitArgs) { - mediaNode.accept(this._visitor); - visitArgs.visitDeeper = false; - - if (!mediaNode.rules.length) { - return []; - } - return mediaNode; - }, - - visitDirective: function(directiveNode, visitArgs) { - if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) { - return []; - } - if (directiveNode.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (this.charset) { - if (directiveNode.debugInfo) { - var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n"); - comment.debugInfo = directiveNode.debugInfo; - return this._visitor.visit(comment); - } - return []; - } - this.charset = true; - } - return directiveNode; - }, - - checkPropertiesInRoot: function(rules) { - var ruleNode; - for(var i = 0; i < rules.length; i++) { - ruleNode = rules[i]; - if (ruleNode instanceof tree.Rule && !ruleNode.variable) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null}; - } - } - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var rule, rulesets = []; - if (rulesetNode.firstRoot) { - this.checkPropertiesInRoot(rulesetNode.rules); - } - if (! rulesetNode.root) { - if (rulesetNode.paths) { - rulesetNode.paths = rulesetNode.paths - .filter(function(p) { - var i; - if (p[0].elements[0].combinator.value === ' ') { - p[0].elements[0].combinator = new(tree.Combinator)(''); - } - for(i = 0; i < p.length; i++) { - if (p[i].getIsReferenced() && p[i].getIsOutput()) { - return true; - } - } - return false; - }); - } - - // Compile rules and rulesets - var nodeRules = rulesetNode.rules, nodeRuleCnt = nodeRules ? nodeRules.length : 0; - for (var i = 0; i < nodeRuleCnt; ) { - rule = nodeRules[i]; - if (rule && rule.rules) { - // visit because we are moving them out from being a child - rulesets.push(this._visitor.visit(rule)); - nodeRules.splice(i, 1); - nodeRuleCnt--; - continue; - } - i++; - } - // accept the visitor to remove rules and refactor itself - // then we can decide now whether we want it or not - if (nodeRuleCnt > 0) { - rulesetNode.accept(this._visitor); - } else { - rulesetNode.rules = null; - } - visitArgs.visitDeeper = false; - - nodeRules = rulesetNode.rules; - if (nodeRules) { - this._mergeRules(nodeRules); - nodeRules = rulesetNode.rules; - } - if (nodeRules) { - this._removeDuplicateRules(nodeRules); - nodeRules = rulesetNode.rules; - } - - // now decide whether we keep the ruleset - if (nodeRules && nodeRules.length > 0 && rulesetNode.paths.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } else { - rulesetNode.accept(this._visitor); - visitArgs.visitDeeper = false; - if (rulesetNode.firstRoot || (rulesetNode.rules && rulesetNode.rules.length > 0)) { - rulesets.splice(0, 0, rulesetNode); - } - } - if (rulesets.length === 1) { - return rulesets[0]; - } - return rulesets; - }, - - _removeDuplicateRules: function(rules) { - if (!rules) { return; } - - // remove duplicates - var ruleCache = {}, - ruleList, rule, i; - - for(i = rules.length - 1; i >= 0 ; i--) { - rule = rules[i]; - if (rule instanceof tree.Rule) { - if (!ruleCache[rule.name]) { - ruleCache[rule.name] = rule; - } else { - ruleList = ruleCache[rule.name]; - if (ruleList instanceof tree.Rule) { - ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)]; - } - var ruleCSS = rule.toCSS(this._env); - if (ruleList.indexOf(ruleCSS) !== -1) { - rules.splice(i, 1); - } else { - ruleList.push(ruleCSS); - } - } - } - } - }, - - _mergeRules: function (rules) { - if (!rules) { return; } - - var groups = {}, - parts, - rule, - key; - - for (var i = 0; i < rules.length; i++) { - rule = rules[i]; - - if ((rule instanceof tree.Rule) && rule.merge) { - key = [rule.name, - rule.important ? "!" : ""].join(","); - - if (!groups[key]) { - groups[key] = []; - } else { - rules.splice(i--, 1); - } - - groups[key].push(rule); - } - } - - Object.keys(groups).map(function (k) { - - function toExpression(values) { - return new (tree.Expression)(values.map(function (p) { - return p.value; - })); - } - - function toValue(values) { - return new (tree.Value)(values.map(function (p) { - return p; - })); - } - - parts = groups[k]; - - if (parts.length > 1) { - rule = parts[0]; - var spacedGroups = []; - var lastSpacedGroup = []; - parts.map(function (p) { - if (p.merge==="+") { - if (lastSpacedGroup.length > 0) { - spacedGroups.push(toExpression(lastSpacedGroup)); - } - lastSpacedGroup = []; - } - lastSpacedGroup.push(p); - }); - spacedGroups.push(toExpression(lastSpacedGroup)); - rule.value = toValue(spacedGroups); - } - }); - } - }; - -})(require('./tree')); -(function (tree) { - /*jshint loopfunc:true */ - - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - var rules = rulesetNode.rules, ruleCnt = rules ? rules.length : 0; - for(i = 0; i < ruleCnt; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rules[i]); - rulesetNode.extendOnEveryPath = true; - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - var paths = rulesetNode.paths; - for(i = 0; i < paths.length; i++) { - var selectorPath = paths[i], - selector = selectorPath[selectorPath.length - 1], - selExtendList = selector.extendList; - - extendList = selExtendList ? selExtendList.slice(0).concat(allSelectorsExtendList) - : allSelectorsExtendList; - - if (extendList) { - extendList = extendList.map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - } - - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if( extend.parent_ids.indexOf( targetExtend.object_id ) >= 0 ){ continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parent_ids = newExtend.parent_ids.concat(targetExtend.parent_ids, extend.parent_ids); - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (rulesetNode.extendOnEveryPath) { continue; } - var extendList = selectorPath[selectorPath.length-1].extendList; - if (extendList && extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator === '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - elementValue1 = elementValue1.value; - elementValue2 = elementValue2.value; - if (elementValue1 instanceof tree.Selector) { - if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) { - return false; - } - for(var i = 0; i currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - newElements = selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)); - - if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) { - path[path.length - 1].elements = - path[path.length - 1].elements.concat(newElements); - } else { - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - newElements - )); - } - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.sourceMapOutput = function (options) { - this._css = []; - this._rootNode = options.rootNode; - this._writeSourceMap = options.writeSourceMap; - this._contentsMap = options.contentsMap; - this._contentsIgnoredCharsMap = options.contentsIgnoredCharsMap; - this._sourceMapFilename = options.sourceMapFilename; - this._outputFilename = options.outputFilename; - this._sourceMapURL = options.sourceMapURL; - if (options.sourceMapBasepath) { - this._sourceMapBasepath = options.sourceMapBasepath.replace(/\\/g, '/'); - } - this._sourceMapRootpath = options.sourceMapRootpath; - this._outputSourceFiles = options.outputSourceFiles; - this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator; - - if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') { - this._sourceMapRootpath += '/'; - } - - this._lineNumber = 0; - this._column = 0; - }; - - tree.sourceMapOutput.prototype.normalizeFilename = function(filename) { - filename = filename.replace(/\\/g, '/'); - - if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) { - filename = filename.substring(this._sourceMapBasepath.length); - if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') { - filename = filename.substring(1); - } - } - return (this._sourceMapRootpath || "") + filename; - }; - - tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) { - - //ignore adding empty strings - if (!chunk) { - return; - } - - var lines, - sourceLines, - columns, - sourceColumns, - i; - - if (fileInfo) { - var inputSource = this._contentsMap[fileInfo.filename]; - - // remove vars/banner added to the top of the file - if (this._contentsIgnoredCharsMap[fileInfo.filename]) { - // adjust the index - index -= this._contentsIgnoredCharsMap[fileInfo.filename]; - if (index < 0) { index = 0; } - // adjust the source - inputSource = inputSource.slice(this._contentsIgnoredCharsMap[fileInfo.filename]); - } - inputSource = inputSource.substring(0, index); - sourceLines = inputSource.split("\n"); - sourceColumns = sourceLines[sourceLines.length-1]; - } - - lines = chunk.split("\n"); - columns = lines[lines.length-1]; - - if (fileInfo) { - if (!mapLines) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column}, - original: { line: sourceLines.length, column: sourceColumns.length}, - source: this.normalizeFilename(fileInfo.filename)}); - } else { - for(i = 0; i < lines.length; i++) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0}, - original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0}, - source: this.normalizeFilename(fileInfo.filename)}); - } - } - } - - if (lines.length === 1) { - this._column += columns.length; - } else { - this._lineNumber += lines.length - 1; - this._column = columns.length; - } - - this._css.push(chunk); - }; - - tree.sourceMapOutput.prototype.isEmpty = function() { - return this._css.length === 0; - }; - - tree.sourceMapOutput.prototype.toCSS = function(env) { - this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null }); - - if (this._outputSourceFiles) { - for(var filename in this._contentsMap) { - if (this._contentsMap.hasOwnProperty(filename)) - { - var source = this._contentsMap[filename]; - if (this._contentsIgnoredCharsMap[filename]) { - source = source.slice(this._contentsIgnoredCharsMap[filename]); - } - this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), source); - } - } - } - - this._rootNode.genCSS(env, this); - - if (this._css.length > 0) { - var sourceMapURL, - sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); - - if (this._sourceMapURL) { - sourceMapURL = this._sourceMapURL; - } else if (this._sourceMapFilename) { - sourceMapURL = this.normalizeFilename(this._sourceMapFilename); - } - - if (this._writeSourceMap) { - this._writeSourceMap(sourceMapContent); - } else { - sourceMapURL = "data:application/json," + encodeURIComponent(sourceMapContent); - } - - if (sourceMapURL) { - this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */"); - } - } - - return this._css.join(''); - }; - -})(require('./tree')); - -// wraps the source-map code in a less module -(function() { - less.modules["source-map"] = function() { - -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ - -/** - * Define a module along with a payload. - * @param {string} moduleName Name for the payload - * @param {ignored} deps Ignored. For compatibility with CommonJS AMD Spec - * @param {function} payload Function with (require, exports, module) params - */ -function define(moduleName, deps, payload) { - if (typeof moduleName != "string") { - throw new TypeError('Expected string, got: ' + moduleName); - } - - if (arguments.length == 2) { - payload = deps; - } - - if (moduleName in define.modules) { - throw new Error("Module already defined: " + moduleName); - } - define.modules[moduleName] = payload; -}; - -/** - * The global store of un-instantiated modules - */ -define.modules = {}; - - -/** - * We invoke require() in the context of a Domain so we can have multiple - * sets of modules running separate from each other. - * This contrasts with JSMs which are singletons, Domains allows us to - * optionally load a CommonJS module twice with separate data each time. - * Perhaps you want 2 command lines with a different set of commands in each, - * for example. - */ -function Domain() { - this.modules = {}; - this._currentModule = null; -} - -(function () { - - /** - * Lookup module names and resolve them by calling the definition function if - * needed. - * There are 2 ways to call this, either with an array of dependencies and a - * callback to call when the dependencies are found (which can happen - * asynchronously in an in-page context) or with a single string an no callback - * where the dependency is resolved synchronously and returned. - * The API is designed to be compatible with the CommonJS AMD spec and - * RequireJS. - * @param {string[]|string} deps A name, or names for the payload - * @param {function|undefined} callback Function to call when the dependencies - * are resolved - * @return {undefined|object} The module required or undefined for - * array/callback method - */ - Domain.prototype.require = function(deps, callback) { - if (Array.isArray(deps)) { - var params = deps.map(function(dep) { - return this.lookup(dep); - }, this); - if (callback) { - callback.apply(null, params); - } - return undefined; - } - else { - return this.lookup(deps); - } - }; - - function normalize(path) { - var bits = path.split('/'); - var i = 1; - while (i < bits.length) { - if (bits[i] === '..') { - bits.splice(i-1, 1); - } else if (bits[i] === '.') { - bits.splice(i, 1); - } else { - i++; - } - } - return bits.join('/'); - } - - function join(a, b) { - a = a.trim(); - b = b.trim(); - if (/^\//.test(b)) { - return b; - } else { - return a.replace(/\/*$/, '/') + b; - } - } - - function dirname(path) { - var bits = path.split('/'); - bits.pop(); - return bits.join('/'); - } - - /** - * Lookup module names and resolve them by calling the definition function if - * needed. - * @param {string} moduleName A name for the payload to lookup - * @return {object} The module specified by aModuleName or null if not found. - */ - Domain.prototype.lookup = function(moduleName) { - if (/^\./.test(moduleName)) { - moduleName = normalize(join(dirname(this._currentModule), moduleName)); - } - - if (moduleName in this.modules) { - var module = this.modules[moduleName]; - return module; - } - - if (!(moduleName in define.modules)) { - throw new Error("Module not defined: " + moduleName); - } - - var module = define.modules[moduleName]; - - if (typeof module == "function") { - var exports = {}; - var previousModule = this._currentModule; - this._currentModule = moduleName; - module(this.require.bind(this), exports, { id: moduleName, uri: "" }); - this._currentModule = previousModule; - module = exports; - } - - // cache the resulting module object for next time - this.modules[moduleName] = module; - - return module; - }; - -}()); - -define.Domain = Domain; -define.globalDomain = new Domain(); -var require = define.globalDomain.require.bind(define.globalDomain); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/source-map-generator', ['require', 'exports', 'module' , 'source-map/base64-vlq', 'source-map/util', 'source-map/array-set'], function(require, exports, module) { - - var base64VLQ = require('./base64-vlq'); - var util = require('./util'); - var ArraySet = require('./array-set').ArraySet; - - /** - * An instance of the SourceMapGenerator represents a source map which is - * being built incrementally. To create a new one, you must pass an object - * with the following properties: - * - * - file: The filename of the generated source. - * - sourceRoot: An optional root for all URLs in this source map. - */ - function SourceMapGenerator(aArgs) { - this._file = util.getArg(aArgs, 'file'); - this._sourceRoot = util.getArg(aArgs, 'sourceRoot', null); - this._sources = new ArraySet(); - this._names = new ArraySet(); - this._mappings = []; - this._sourcesContents = null; - } - - SourceMapGenerator.prototype._version = 3; - - /** - * Creates a new SourceMapGenerator based on a SourceMapConsumer - * - * @param aSourceMapConsumer The SourceMap. - */ - SourceMapGenerator.fromSourceMap = - function SourceMapGenerator_fromSourceMap(aSourceMapConsumer) { - var sourceRoot = aSourceMapConsumer.sourceRoot; - var generator = new SourceMapGenerator({ - file: aSourceMapConsumer.file, - sourceRoot: sourceRoot - }); - aSourceMapConsumer.eachMapping(function (mapping) { - var newMapping = { - generated: { - line: mapping.generatedLine, - column: mapping.generatedColumn - } - }; - - if (mapping.source) { - newMapping.source = mapping.source; - if (sourceRoot) { - newMapping.source = util.relative(sourceRoot, newMapping.source); - } - - newMapping.original = { - line: mapping.originalLine, - column: mapping.originalColumn - }; - - if (mapping.name) { - newMapping.name = mapping.name; - } - } - - generator.addMapping(newMapping); - }); - aSourceMapConsumer.sources.forEach(function (sourceFile) { - var content = aSourceMapConsumer.sourceContentFor(sourceFile); - if (content) { - generator.setSourceContent(sourceFile, content); - } - }); - return generator; - }; - - /** - * Add a single mapping from original source line and column to the generated - * source's line and column for this source map being created. The mapping - * object should have the following properties: - * - * - generated: An object with the generated line and column positions. - * - original: An object with the original line and column positions. - * - source: The original source file (relative to the sourceRoot). - * - name: An optional original token name for this mapping. - */ - SourceMapGenerator.prototype.addMapping = - function SourceMapGenerator_addMapping(aArgs) { - var generated = util.getArg(aArgs, 'generated'); - var original = util.getArg(aArgs, 'original', null); - var source = util.getArg(aArgs, 'source', null); - var name = util.getArg(aArgs, 'name', null); - - this._validateMapping(generated, original, source, name); - - if (source && !this._sources.has(source)) { - this._sources.add(source); - } - - if (name && !this._names.has(name)) { - this._names.add(name); - } - - this._mappings.push({ - generatedLine: generated.line, - generatedColumn: generated.column, - originalLine: original != null && original.line, - originalColumn: original != null && original.column, - source: source, - name: name - }); - }; - - /** - * Set the source content for a source file. - */ - SourceMapGenerator.prototype.setSourceContent = - function SourceMapGenerator_setSourceContent(aSourceFile, aSourceContent) { - var source = aSourceFile; - if (this._sourceRoot) { - source = util.relative(this._sourceRoot, source); - } - - if (aSourceContent !== null) { - // Add the source content to the _sourcesContents map. - // Create a new _sourcesContents map if the property is null. - if (!this._sourcesContents) { - this._sourcesContents = {}; - } - this._sourcesContents[util.toSetString(source)] = aSourceContent; - } else { - // Remove the source file from the _sourcesContents map. - // If the _sourcesContents map is empty, set the property to null. - delete this._sourcesContents[util.toSetString(source)]; - if (Object.keys(this._sourcesContents).length === 0) { - this._sourcesContents = null; - } - } - }; - - /** - * Applies the mappings of a sub-source-map for a specific source file to the - * source map being generated. Each mapping to the supplied source file is - * rewritten using the supplied source map. Note: The resolution for the - * resulting mappings is the minimium of this map and the supplied map. - * - * @param aSourceMapConsumer The source map to be applied. - * @param aSourceFile Optional. The filename of the source file. - * If omitted, SourceMapConsumer's file property will be used. - */ - SourceMapGenerator.prototype.applySourceMap = - function SourceMapGenerator_applySourceMap(aSourceMapConsumer, aSourceFile) { - // If aSourceFile is omitted, we will use the file property of the SourceMap - if (!aSourceFile) { - aSourceFile = aSourceMapConsumer.file; - } - var sourceRoot = this._sourceRoot; - // Make "aSourceFile" relative if an absolute Url is passed. - if (sourceRoot) { - aSourceFile = util.relative(sourceRoot, aSourceFile); - } - // Applying the SourceMap can add and remove items from the sources and - // the names array. - var newSources = new ArraySet(); - var newNames = new ArraySet(); - - // Find mappings for the "aSourceFile" - this._mappings.forEach(function (mapping) { - if (mapping.source === aSourceFile && mapping.originalLine) { - // Check if it can be mapped by the source map, then update the mapping. - var original = aSourceMapConsumer.originalPositionFor({ - line: mapping.originalLine, - column: mapping.originalColumn - }); - if (original.source !== null) { - // Copy mapping - if (sourceRoot) { - mapping.source = util.relative(sourceRoot, original.source); - } else { - mapping.source = original.source; - } - mapping.originalLine = original.line; - mapping.originalColumn = original.column; - if (original.name !== null && mapping.name !== null) { - // Only use the identifier name if it's an identifier - // in both SourceMaps - mapping.name = original.name; - } - } - } - - var source = mapping.source; - if (source && !newSources.has(source)) { - newSources.add(source); - } - - var name = mapping.name; - if (name && !newNames.has(name)) { - newNames.add(name); - } - - }, this); - this._sources = newSources; - this._names = newNames; - - // Copy sourcesContents of applied map. - aSourceMapConsumer.sources.forEach(function (sourceFile) { - var content = aSourceMapConsumer.sourceContentFor(sourceFile); - if (content) { - if (sourceRoot) { - sourceFile = util.relative(sourceRoot, sourceFile); - } - this.setSourceContent(sourceFile, content); - } - }, this); - }; - - /** - * A mapping can have one of the three levels of data: - * - * 1. Just the generated position. - * 2. The Generated position, original position, and original source. - * 3. Generated and original position, original source, as well as a name - * token. - * - * To maintain consistency, we validate that any new mapping being added falls - * in to one of these categories. - */ - SourceMapGenerator.prototype._validateMapping = - function SourceMapGenerator_validateMapping(aGenerated, aOriginal, aSource, - aName) { - if (aGenerated && 'line' in aGenerated && 'column' in aGenerated - && aGenerated.line > 0 && aGenerated.column >= 0 - && !aOriginal && !aSource && !aName) { - // Case 1. - return; - } - else if (aGenerated && 'line' in aGenerated && 'column' in aGenerated - && aOriginal && 'line' in aOriginal && 'column' in aOriginal - && aGenerated.line > 0 && aGenerated.column >= 0 - && aOriginal.line > 0 && aOriginal.column >= 0 - && aSource) { - // Cases 2 and 3. - return; - } - else { - throw new Error('Invalid mapping: ' + JSON.stringify({ - generated: aGenerated, - source: aSource, - original: aOriginal, - name: aName - })); - } - }; - - /** - * Serialize the accumulated mappings in to the stream of base 64 VLQs - * specified by the source map format. - */ - SourceMapGenerator.prototype._serializeMappings = - function SourceMapGenerator_serializeMappings() { - var previousGeneratedColumn = 0; - var previousGeneratedLine = 1; - var previousOriginalColumn = 0; - var previousOriginalLine = 0; - var previousName = 0; - var previousSource = 0; - var result = ''; - var mapping; - - // The mappings must be guaranteed to be in sorted order before we start - // serializing them or else the generated line numbers (which are defined - // via the ';' separators) will be all messed up. Note: it might be more - // performant to maintain the sorting as we insert them, rather than as we - // serialize them, but the big O is the same either way. - this._mappings.sort(util.compareByGeneratedPositions); - - for (var i = 0, len = this._mappings.length; i < len; i++) { - mapping = this._mappings[i]; - - if (mapping.generatedLine !== previousGeneratedLine) { - previousGeneratedColumn = 0; - while (mapping.generatedLine !== previousGeneratedLine) { - result += ';'; - previousGeneratedLine++; - } - } - else { - if (i > 0) { - if (!util.compareByGeneratedPositions(mapping, this._mappings[i - 1])) { - continue; - } - result += ','; - } - } - - result += base64VLQ.encode(mapping.generatedColumn - - previousGeneratedColumn); - previousGeneratedColumn = mapping.generatedColumn; - - if (mapping.source) { - result += base64VLQ.encode(this._sources.indexOf(mapping.source) - - previousSource); - previousSource = this._sources.indexOf(mapping.source); - - // lines are stored 0-based in SourceMap spec version 3 - result += base64VLQ.encode(mapping.originalLine - 1 - - previousOriginalLine); - previousOriginalLine = mapping.originalLine - 1; - - result += base64VLQ.encode(mapping.originalColumn - - previousOriginalColumn); - previousOriginalColumn = mapping.originalColumn; - - if (mapping.name) { - result += base64VLQ.encode(this._names.indexOf(mapping.name) - - previousName); - previousName = this._names.indexOf(mapping.name); - } - } - } - - return result; - }; - - SourceMapGenerator.prototype._generateSourcesContent = - function SourceMapGenerator_generateSourcesContent(aSources, aSourceRoot) { - return aSources.map(function (source) { - if (!this._sourcesContents) { - return null; - } - if (aSourceRoot) { - source = util.relative(aSourceRoot, source); - } - var key = util.toSetString(source); - return Object.prototype.hasOwnProperty.call(this._sourcesContents, - key) - ? this._sourcesContents[key] - : null; - }, this); - }; - - /** - * Externalize the source map. - */ - SourceMapGenerator.prototype.toJSON = - function SourceMapGenerator_toJSON() { - var map = { - version: this._version, - file: this._file, - sources: this._sources.toArray(), - names: this._names.toArray(), - mappings: this._serializeMappings() - }; - if (this._sourceRoot) { - map.sourceRoot = this._sourceRoot; - } - if (this._sourcesContents) { - map.sourcesContent = this._generateSourcesContent(map.sources, map.sourceRoot); - } - - return map; - }; - - /** - * Render the source map being generated to a string. - */ - SourceMapGenerator.prototype.toString = - function SourceMapGenerator_toString() { - return JSON.stringify(this); - }; - - exports.SourceMapGenerator = SourceMapGenerator; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - * - * Based on the Base 64 VLQ implementation in Closure Compiler: - * https://code.google.com/p/closure-compiler/source/browse/trunk/src/com/google/debugging/sourcemap/Base64VLQ.java - * - * Copyright 2011 The Closure Compiler Authors. All rights reserved. - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following - * disclaimer in the documentation and/or other materials provided - * with the distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ -define('source-map/base64-vlq', ['require', 'exports', 'module' , 'source-map/base64'], function(require, exports, module) { - - var base64 = require('./base64'); - - // A single base 64 digit can contain 6 bits of data. For the base 64 variable - // length quantities we use in the source map spec, the first bit is the sign, - // the next four bits are the actual value, and the 6th bit is the - // continuation bit. The continuation bit tells us whether there are more - // digits in this value following this digit. - // - // Continuation - // | Sign - // | | - // V V - // 101011 - - var VLQ_BASE_SHIFT = 5; - - // binary: 100000 - var VLQ_BASE = 1 << VLQ_BASE_SHIFT; - - // binary: 011111 - var VLQ_BASE_MASK = VLQ_BASE - 1; - - // binary: 100000 - var VLQ_CONTINUATION_BIT = VLQ_BASE; - - /** - * Converts from a two-complement value to a value where the sign bit is - * is placed in the least significant bit. For example, as decimals: - * 1 becomes 2 (10 binary), -1 becomes 3 (11 binary) - * 2 becomes 4 (100 binary), -2 becomes 5 (101 binary) - */ - function toVLQSigned(aValue) { - return aValue < 0 - ? ((-aValue) << 1) + 1 - : (aValue << 1) + 0; - } - - /** - * Converts to a two-complement value from a value where the sign bit is - * is placed in the least significant bit. For example, as decimals: - * 2 (10 binary) becomes 1, 3 (11 binary) becomes -1 - * 4 (100 binary) becomes 2, 5 (101 binary) becomes -2 - */ - function fromVLQSigned(aValue) { - var isNegative = (aValue & 1) === 1; - var shifted = aValue >> 1; - return isNegative - ? -shifted - : shifted; - } - - /** - * Returns the base 64 VLQ encoded value. - */ - exports.encode = function base64VLQ_encode(aValue) { - var encoded = ""; - var digit; - - var vlq = toVLQSigned(aValue); - - do { - digit = vlq & VLQ_BASE_MASK; - vlq >>>= VLQ_BASE_SHIFT; - if (vlq > 0) { - // There are still more digits in this value, so we must make sure the - // continuation bit is marked. - digit |= VLQ_CONTINUATION_BIT; - } - encoded += base64.encode(digit); - } while (vlq > 0); - - return encoded; - }; - - /** - * Decodes the next base 64 VLQ value from the given string and returns the - * value and the rest of the string. - */ - exports.decode = function base64VLQ_decode(aStr) { - var i = 0; - var strLen = aStr.length; - var result = 0; - var shift = 0; - var continuation, digit; - - do { - if (i >= strLen) { - throw new Error("Expected more digits in base 64 VLQ value."); - } - digit = base64.decode(aStr.charAt(i++)); - continuation = !!(digit & VLQ_CONTINUATION_BIT); - digit &= VLQ_BASE_MASK; - result = result + (digit << shift); - shift += VLQ_BASE_SHIFT; - } while (continuation); - - return { - value: fromVLQSigned(result), - rest: aStr.slice(i) - }; - }; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/base64', ['require', 'exports', 'module' , ], function(require, exports, module) { - - var charToIntMap = {}; - var intToCharMap = {}; - - 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/' - .split('') - .forEach(function (ch, index) { - charToIntMap[ch] = index; - intToCharMap[index] = ch; - }); - - /** - * Encode an integer in the range of 0 to 63 to a single base 64 digit. - */ - exports.encode = function base64_encode(aNumber) { - if (aNumber in intToCharMap) { - return intToCharMap[aNumber]; - } - throw new TypeError("Must be between 0 and 63: " + aNumber); - }; - - /** - * Decode a single base 64 digit to an integer. - */ - exports.decode = function base64_decode(aChar) { - if (aChar in charToIntMap) { - return charToIntMap[aChar]; - } - throw new TypeError("Not a valid base 64 digit: " + aChar); - }; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/util', ['require', 'exports', 'module' , ], function(require, exports, module) { - - /** - * This is a helper function for getting values from parameter/options - * objects. - * - * @param args The object we are extracting values from - * @param name The name of the property we are getting. - * @param defaultValue An optional value to return if the property is missing - * from the object. If this is not specified and the property is missing, an - * error will be thrown. - */ - function getArg(aArgs, aName, aDefaultValue) { - if (aName in aArgs) { - return aArgs[aName]; - } else if (arguments.length === 3) { - return aDefaultValue; - } else { - throw new Error('"' + aName + '" is a required argument.'); - } - } - exports.getArg = getArg; - - var urlRegexp = /([\w+\-.]+):\/\/((\w+:\w+)@)?([\w.]+)?(:(\d+))?(\S+)?/; - var dataUrlRegexp = /^data:.+\,.+/; - - function urlParse(aUrl) { - var match = aUrl.match(urlRegexp); - if (!match) { - return null; - } - return { - scheme: match[1], - auth: match[3], - host: match[4], - port: match[6], - path: match[7] - }; - } - exports.urlParse = urlParse; - - function urlGenerate(aParsedUrl) { - var url = aParsedUrl.scheme + "://"; - if (aParsedUrl.auth) { - url += aParsedUrl.auth + "@" - } - if (aParsedUrl.host) { - url += aParsedUrl.host; - } - if (aParsedUrl.port) { - url += ":" + aParsedUrl.port - } - if (aParsedUrl.path) { - url += aParsedUrl.path; - } - return url; - } - exports.urlGenerate = urlGenerate; - - function join(aRoot, aPath) { - var url; - - if (aPath.match(urlRegexp) || aPath.match(dataUrlRegexp)) { - return aPath; - } - - if (aPath.charAt(0) === '/' && (url = urlParse(aRoot))) { - url.path = aPath; - return urlGenerate(url); - } - - return aRoot.replace(/\/$/, '') + '/' + aPath; - } - exports.join = join; - - /** - * Because behavior goes wacky when you set `__proto__` on objects, we - * have to prefix all the strings in our set with an arbitrary character. - * - * See https://github.com/mozilla/source-map/pull/31 and - * https://github.com/mozilla/source-map/issues/30 - * - * @param String aStr - */ - function toSetString(aStr) { - return '$' + aStr; - } - exports.toSetString = toSetString; - - function fromSetString(aStr) { - return aStr.substr(1); - } - exports.fromSetString = fromSetString; - - function relative(aRoot, aPath) { - aRoot = aRoot.replace(/\/$/, ''); - - var url = urlParse(aRoot); - if (aPath.charAt(0) == "/" && url && url.path == "/") { - return aPath.slice(1); - } - - return aPath.indexOf(aRoot + '/') === 0 - ? aPath.substr(aRoot.length + 1) - : aPath; - } - exports.relative = relative; - - function strcmp(aStr1, aStr2) { - var s1 = aStr1 || ""; - var s2 = aStr2 || ""; - return (s1 > s2) - (s1 < s2); - } - - /** - * Comparator between two mappings where the original positions are compared. - * - * Optionally pass in `true` as `onlyCompareGenerated` to consider two - * mappings with the same original source/line/column, but different generated - * line and column the same. Useful when searching for a mapping with a - * stubbed out mapping. - */ - function compareByOriginalPositions(mappingA, mappingB, onlyCompareOriginal) { - var cmp; - - cmp = strcmp(mappingA.source, mappingB.source); - if (cmp) { - return cmp; - } - - cmp = mappingA.originalLine - mappingB.originalLine; - if (cmp) { - return cmp; - } - - cmp = mappingA.originalColumn - mappingB.originalColumn; - if (cmp || onlyCompareOriginal) { - return cmp; - } - - cmp = strcmp(mappingA.name, mappingB.name); - if (cmp) { - return cmp; - } - - cmp = mappingA.generatedLine - mappingB.generatedLine; - if (cmp) { - return cmp; - } - - return mappingA.generatedColumn - mappingB.generatedColumn; - }; - exports.compareByOriginalPositions = compareByOriginalPositions; - - /** - * Comparator between two mappings where the generated positions are - * compared. - * - * Optionally pass in `true` as `onlyCompareGenerated` to consider two - * mappings with the same generated line and column, but different - * source/name/original line and column the same. Useful when searching for a - * mapping with a stubbed out mapping. - */ - function compareByGeneratedPositions(mappingA, mappingB, onlyCompareGenerated) { - var cmp; - - cmp = mappingA.generatedLine - mappingB.generatedLine; - if (cmp) { - return cmp; - } - - cmp = mappingA.generatedColumn - mappingB.generatedColumn; - if (cmp || onlyCompareGenerated) { - return cmp; - } - - cmp = strcmp(mappingA.source, mappingB.source); - if (cmp) { - return cmp; - } - - cmp = mappingA.originalLine - mappingB.originalLine; - if (cmp) { - return cmp; - } - - cmp = mappingA.originalColumn - mappingB.originalColumn; - if (cmp) { - return cmp; - } - - return strcmp(mappingA.name, mappingB.name); - }; - exports.compareByGeneratedPositions = compareByGeneratedPositions; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/array-set', ['require', 'exports', 'module' , 'source-map/util'], function(require, exports, module) { - - var util = require('./util'); - - /** - * A data structure which is a combination of an array and a set. Adding a new - * member is O(1), testing for membership is O(1), and finding the index of an - * element is O(1). Removing elements from the set is not supported. Only - * strings are supported for membership. - */ - function ArraySet() { - this._array = []; - this._set = {}; - } - - /** - * Static method for creating ArraySet instances from an existing array. - */ - ArraySet.fromArray = function ArraySet_fromArray(aArray, aAllowDuplicates) { - var set = new ArraySet(); - for (var i = 0, len = aArray.length; i < len; i++) { - set.add(aArray[i], aAllowDuplicates); - } - return set; - }; - - /** - * Add the given string to this set. - * - * @param String aStr - */ - ArraySet.prototype.add = function ArraySet_add(aStr, aAllowDuplicates) { - var isDuplicate = this.has(aStr); - var idx = this._array.length; - if (!isDuplicate || aAllowDuplicates) { - this._array.push(aStr); - } - if (!isDuplicate) { - this._set[util.toSetString(aStr)] = idx; - } - }; - - /** - * Is the given string a member of this set? - * - * @param String aStr - */ - ArraySet.prototype.has = function ArraySet_has(aStr) { - return Object.prototype.hasOwnProperty.call(this._set, - util.toSetString(aStr)); - }; - - /** - * What is the index of the given string in the array? - * - * @param String aStr - */ - ArraySet.prototype.indexOf = function ArraySet_indexOf(aStr) { - if (this.has(aStr)) { - return this._set[util.toSetString(aStr)]; - } - throw new Error('"' + aStr + '" is not in the set.'); - }; - - /** - * What is the element at the given index? - * - * @param Number aIdx - */ - ArraySet.prototype.at = function ArraySet_at(aIdx) { - if (aIdx >= 0 && aIdx < this._array.length) { - return this._array[aIdx]; - } - throw new Error('No element indexed by ' + aIdx); - }; - - /** - * Returns the array representation of this set (which has the proper indices - * indicated by indexOf). Note that this is a copy of the internal array used - * for storing the members so that no one can mess with internal state. - */ - ArraySet.prototype.toArray = function ArraySet_toArray() { - return this._array.slice(); - }; - - exports.ArraySet = ArraySet; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/source-map-consumer', ['require', 'exports', 'module' , 'source-map/util', 'source-map/binary-search', 'source-map/array-set', 'source-map/base64-vlq'], function(require, exports, module) { - - var util = require('./util'); - var binarySearch = require('./binary-search'); - var ArraySet = require('./array-set').ArraySet; - var base64VLQ = require('./base64-vlq'); - - /** - * A SourceMapConsumer instance represents a parsed source map which we can - * query for information about the original file positions by giving it a file - * position in the generated source. - * - * The only parameter is the raw source map (either as a JSON string, or - * already parsed to an object). According to the spec, source maps have the - * following attributes: - * - * - version: Which version of the source map spec this map is following. - * - sources: An array of URLs to the original source files. - * - names: An array of identifiers which can be referrenced by individual mappings. - * - sourceRoot: Optional. The URL root from which all sources are relative. - * - sourcesContent: Optional. An array of contents of the original source files. - * - mappings: A string of base64 VLQs which contain the actual mappings. - * - file: The generated file this source map is associated with. - * - * Here is an example source map, taken from the source map spec[0]: - * - * { - * version : 3, - * file: "out.js", - * sourceRoot : "", - * sources: ["foo.js", "bar.js"], - * names: ["src", "maps", "are", "fun"], - * mappings: "AA,AB;;ABCDE;" - * } - * - * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit?pli=1# - */ - function SourceMapConsumer(aSourceMap) { - var sourceMap = aSourceMap; - if (typeof aSourceMap === 'string') { - sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, '')); - } - - var version = util.getArg(sourceMap, 'version'); - var sources = util.getArg(sourceMap, 'sources'); - // Sass 3.3 leaves out the 'names' array, so we deviate from the spec (which - // requires the array) to play nice here. - var names = util.getArg(sourceMap, 'names', []); - var sourceRoot = util.getArg(sourceMap, 'sourceRoot', null); - var sourcesContent = util.getArg(sourceMap, 'sourcesContent', null); - var mappings = util.getArg(sourceMap, 'mappings'); - var file = util.getArg(sourceMap, 'file', null); - - // Once again, Sass deviates from the spec and supplies the version as a - // string rather than a number, so we use loose equality checking here. - if (version != this._version) { - throw new Error('Unsupported version: ' + version); - } - - // Pass `true` below to allow duplicate names and sources. While source maps - // are intended to be compressed and deduplicated, the TypeScript compiler - // sometimes generates source maps with duplicates in them. See Github issue - // #72 and bugzil.la/889492. - this._names = ArraySet.fromArray(names, true); - this._sources = ArraySet.fromArray(sources, true); - - this.sourceRoot = sourceRoot; - this.sourcesContent = sourcesContent; - this._mappings = mappings; - this.file = file; - } - - /** - * Create a SourceMapConsumer from a SourceMapGenerator. - * - * @param SourceMapGenerator aSourceMap - * The source map that will be consumed. - * @returns SourceMapConsumer - */ - SourceMapConsumer.fromSourceMap = - function SourceMapConsumer_fromSourceMap(aSourceMap) { - var smc = Object.create(SourceMapConsumer.prototype); - - smc._names = ArraySet.fromArray(aSourceMap._names.toArray(), true); - smc._sources = ArraySet.fromArray(aSourceMap._sources.toArray(), true); - smc.sourceRoot = aSourceMap._sourceRoot; - smc.sourcesContent = aSourceMap._generateSourcesContent(smc._sources.toArray(), - smc.sourceRoot); - smc.file = aSourceMap._file; - - smc.__generatedMappings = aSourceMap._mappings.slice() - .sort(util.compareByGeneratedPositions); - smc.__originalMappings = aSourceMap._mappings.slice() - .sort(util.compareByOriginalPositions); - - return smc; - }; - - /** - * The version of the source mapping spec that we are consuming. - */ - SourceMapConsumer.prototype._version = 3; - - /** - * The list of original sources. - */ - Object.defineProperty(SourceMapConsumer.prototype, 'sources', { - get: function () { - return this._sources.toArray().map(function (s) { - return this.sourceRoot ? util.join(this.sourceRoot, s) : s; - }, this); - } - }); - - // `__generatedMappings` and `__originalMappings` are arrays that hold the - // parsed mapping coordinates from the source map's "mappings" attribute. They - // are lazily instantiated, accessed via the `_generatedMappings` and - // `_originalMappings` getters respectively, and we only parse the mappings - // and create these arrays once queried for a source location. We jump through - // these hoops because there can be many thousands of mappings, and parsing - // them is expensive, so we only want to do it if we must. - // - // Each object in the arrays is of the form: - // - // { - // generatedLine: The line number in the generated code, - // generatedColumn: The column number in the generated code, - // source: The path to the original source file that generated this - // chunk of code, - // originalLine: The line number in the original source that - // corresponds to this chunk of generated code, - // originalColumn: The column number in the original source that - // corresponds to this chunk of generated code, - // name: The name of the original symbol which generated this chunk of - // code. - // } - // - // All properties except for `generatedLine` and `generatedColumn` can be - // `null`. - // - // `_generatedMappings` is ordered by the generated positions. - // - // `_originalMappings` is ordered by the original positions. - - SourceMapConsumer.prototype.__generatedMappings = null; - Object.defineProperty(SourceMapConsumer.prototype, '_generatedMappings', { - get: function () { - if (!this.__generatedMappings) { - this.__generatedMappings = []; - this.__originalMappings = []; - this._parseMappings(this._mappings, this.sourceRoot); - } - - return this.__generatedMappings; - } - }); - - SourceMapConsumer.prototype.__originalMappings = null; - Object.defineProperty(SourceMapConsumer.prototype, '_originalMappings', { - get: function () { - if (!this.__originalMappings) { - this.__generatedMappings = []; - this.__originalMappings = []; - this._parseMappings(this._mappings, this.sourceRoot); - } - - return this.__originalMappings; - } - }); - - /** - * Parse the mappings in a string in to a data structure which we can easily - * query (the ordered arrays in the `this.__generatedMappings` and - * `this.__originalMappings` properties). - */ - SourceMapConsumer.prototype._parseMappings = - function SourceMapConsumer_parseMappings(aStr, aSourceRoot) { - var generatedLine = 1; - var previousGeneratedColumn = 0; - var previousOriginalLine = 0; - var previousOriginalColumn = 0; - var previousSource = 0; - var previousName = 0; - var mappingSeparator = /^[,;]/; - var str = aStr; - var mapping; - var temp; - - while (str.length > 0) { - if (str.charAt(0) === ';') { - generatedLine++; - str = str.slice(1); - previousGeneratedColumn = 0; - } - else if (str.charAt(0) === ',') { - str = str.slice(1); - } - else { - mapping = {}; - mapping.generatedLine = generatedLine; - - // Generated column. - temp = base64VLQ.decode(str); - mapping.generatedColumn = previousGeneratedColumn + temp.value; - previousGeneratedColumn = mapping.generatedColumn; - str = temp.rest; - - if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) { - // Original source. - temp = base64VLQ.decode(str); - mapping.source = this._sources.at(previousSource + temp.value); - previousSource += temp.value; - str = temp.rest; - if (str.length === 0 || mappingSeparator.test(str.charAt(0))) { - throw new Error('Found a source, but no line and column'); - } - - // Original line. - temp = base64VLQ.decode(str); - mapping.originalLine = previousOriginalLine + temp.value; - previousOriginalLine = mapping.originalLine; - // Lines are stored 0-based - mapping.originalLine += 1; - str = temp.rest; - if (str.length === 0 || mappingSeparator.test(str.charAt(0))) { - throw new Error('Found a source and line, but no column'); - } - - // Original column. - temp = base64VLQ.decode(str); - mapping.originalColumn = previousOriginalColumn + temp.value; - previousOriginalColumn = mapping.originalColumn; - str = temp.rest; - - if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) { - // Original name. - temp = base64VLQ.decode(str); - mapping.name = this._names.at(previousName + temp.value); - previousName += temp.value; - str = temp.rest; - } - } - - this.__generatedMappings.push(mapping); - if (typeof mapping.originalLine === 'number') { - this.__originalMappings.push(mapping); - } - } - } - - this.__originalMappings.sort(util.compareByOriginalPositions); - }; - - /** - * Find the mapping that best matches the hypothetical "needle" mapping that - * we are searching for in the given "haystack" of mappings. - */ - SourceMapConsumer.prototype._findMapping = - function SourceMapConsumer_findMapping(aNeedle, aMappings, aLineName, - aColumnName, aComparator) { - // To return the position we are searching for, we must first find the - // mapping for the given position and then return the opposite position it - // points to. Because the mappings are sorted, we can use binary search to - // find the best mapping. - - if (aNeedle[aLineName] <= 0) { - throw new TypeError('Line must be greater than or equal to 1, got ' - + aNeedle[aLineName]); - } - if (aNeedle[aColumnName] < 0) { - throw new TypeError('Column must be greater than or equal to 0, got ' - + aNeedle[aColumnName]); - } - - return binarySearch.search(aNeedle, aMappings, aComparator); - }; - - /** - * Returns the original source, line, and column information for the generated - * source's line and column positions provided. The only argument is an object - * with the following properties: - * - * - line: The line number in the generated source. - * - column: The column number in the generated source. - * - * and an object is returned with the following properties: - * - * - source: The original source file, or null. - * - line: The line number in the original source, or null. - * - column: The column number in the original source, or null. - * - name: The original identifier, or null. - */ - SourceMapConsumer.prototype.originalPositionFor = - function SourceMapConsumer_originalPositionFor(aArgs) { - var needle = { - generatedLine: util.getArg(aArgs, 'line'), - generatedColumn: util.getArg(aArgs, 'column') - }; - - var mapping = this._findMapping(needle, - this._generatedMappings, - "generatedLine", - "generatedColumn", - util.compareByGeneratedPositions); - - if (mapping) { - var source = util.getArg(mapping, 'source', null); - if (source && this.sourceRoot) { - source = util.join(this.sourceRoot, source); - } - return { - source: source, - line: util.getArg(mapping, 'originalLine', null), - column: util.getArg(mapping, 'originalColumn', null), - name: util.getArg(mapping, 'name', null) - }; - } - - return { - source: null, - line: null, - column: null, - name: null - }; - }; - - /** - * Returns the original source content. The only argument is the url of the - * original source file. Returns null if no original source content is - * availible. - */ - SourceMapConsumer.prototype.sourceContentFor = - function SourceMapConsumer_sourceContentFor(aSource) { - if (!this.sourcesContent) { - return null; - } - - if (this.sourceRoot) { - aSource = util.relative(this.sourceRoot, aSource); - } - - if (this._sources.has(aSource)) { - return this.sourcesContent[this._sources.indexOf(aSource)]; - } - - var url; - if (this.sourceRoot - && (url = util.urlParse(this.sourceRoot))) { - // XXX: file:// URIs and absolute paths lead to unexpected behavior for - // many users. We can help them out when they expect file:// URIs to - // behave like it would if they were running a local HTTP server. See - // https://bugzilla.mozilla.org/show_bug.cgi?id=885597. - var fileUriAbsPath = aSource.replace(/^file:\/\//, ""); - if (url.scheme == "file" - && this._sources.has(fileUriAbsPath)) { - return this.sourcesContent[this._sources.indexOf(fileUriAbsPath)] - } - - if ((!url.path || url.path == "/") - && this._sources.has("/" + aSource)) { - return this.sourcesContent[this._sources.indexOf("/" + aSource)]; - } - } - - throw new Error('"' + aSource + '" is not in the SourceMap.'); - }; - - /** - * Returns the generated line and column information for the original source, - * line, and column positions provided. The only argument is an object with - * the following properties: - * - * - source: The filename of the original source. - * - line: The line number in the original source. - * - column: The column number in the original source. - * - * and an object is returned with the following properties: - * - * - line: The line number in the generated source, or null. - * - column: The column number in the generated source, or null. - */ - SourceMapConsumer.prototype.generatedPositionFor = - function SourceMapConsumer_generatedPositionFor(aArgs) { - var needle = { - source: util.getArg(aArgs, 'source'), - originalLine: util.getArg(aArgs, 'line'), - originalColumn: util.getArg(aArgs, 'column') - }; - - if (this.sourceRoot) { - needle.source = util.relative(this.sourceRoot, needle.source); - } - - var mapping = this._findMapping(needle, - this._originalMappings, - "originalLine", - "originalColumn", - util.compareByOriginalPositions); - - if (mapping) { - return { - line: util.getArg(mapping, 'generatedLine', null), - column: util.getArg(mapping, 'generatedColumn', null) - }; - } - - return { - line: null, - column: null - }; - }; - - SourceMapConsumer.GENERATED_ORDER = 1; - SourceMapConsumer.ORIGINAL_ORDER = 2; - - /** - * Iterate over each mapping between an original source/line/column and a - * generated line/column in this source map. - * - * @param Function aCallback - * The function that is called with each mapping. - * @param Object aContext - * Optional. If specified, this object will be the value of `this` every - * time that `aCallback` is called. - * @param aOrder - * Either `SourceMapConsumer.GENERATED_ORDER` or - * `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to - * iterate over the mappings sorted by the generated file's line/column - * order or the original's source/line/column order, respectively. Defaults to - * `SourceMapConsumer.GENERATED_ORDER`. - */ - SourceMapConsumer.prototype.eachMapping = - function SourceMapConsumer_eachMapping(aCallback, aContext, aOrder) { - var context = aContext || null; - var order = aOrder || SourceMapConsumer.GENERATED_ORDER; - - var mappings; - switch (order) { - case SourceMapConsumer.GENERATED_ORDER: - mappings = this._generatedMappings; - break; - case SourceMapConsumer.ORIGINAL_ORDER: - mappings = this._originalMappings; - break; - default: - throw new Error("Unknown order of iteration."); - } - - var sourceRoot = this.sourceRoot; - mappings.map(function (mapping) { - var source = mapping.source; - if (source && sourceRoot) { - source = util.join(sourceRoot, source); - } - return { - source: source, - generatedLine: mapping.generatedLine, - generatedColumn: mapping.generatedColumn, - originalLine: mapping.originalLine, - originalColumn: mapping.originalColumn, - name: mapping.name - }; - }).forEach(aCallback, context); - }; - - exports.SourceMapConsumer = SourceMapConsumer; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/binary-search', ['require', 'exports', 'module' , ], function(require, exports, module) { - - /** - * Recursive implementation of binary search. - * - * @param aLow Indices here and lower do not contain the needle. - * @param aHigh Indices here and higher do not contain the needle. - * @param aNeedle The element being searched for. - * @param aHaystack The non-empty array being searched. - * @param aCompare Function which takes two elements and returns -1, 0, or 1. - */ - function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare) { - // This function terminates when one of the following is true: - // - // 1. We find the exact element we are looking for. - // - // 2. We did not find the exact element, but we can return the next - // closest element that is less than that element. - // - // 3. We did not find the exact element, and there is no next-closest - // element which is less than the one we are searching for, so we - // return null. - var mid = Math.floor((aHigh - aLow) / 2) + aLow; - var cmp = aCompare(aNeedle, aHaystack[mid], true); - if (cmp === 0) { - // Found the element we are looking for. - return aHaystack[mid]; - } - else if (cmp > 0) { - // aHaystack[mid] is greater than our needle. - if (aHigh - mid > 1) { - // The element is in the upper half. - return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare); - } - // We did not find an exact match, return the next closest one - // (termination case 2). - return aHaystack[mid]; - } - else { - // aHaystack[mid] is less than our needle. - if (mid - aLow > 1) { - // The element is in the lower half. - return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare); - } - // The exact needle element was not found in this haystack. Determine if - // we are in termination case (2) or (3) and return the appropriate thing. - return aLow < 0 - ? null - : aHaystack[aLow]; - } - } - - /** - * This is an implementation of binary search which will always try and return - * the next lowest value checked if there is no exact hit. This is because - * mappings between original and generated line/col pairs are single points, - * and there is an implicit region between each of them, so a miss just means - * that you aren't on the very start of a region. - * - * @param aNeedle The element you are looking for. - * @param aHaystack The array that is being searched. - * @param aCompare A function which takes the needle and an element in the - * array and returns -1, 0, or 1 depending on whether the needle is less - * than, equal to, or greater than the element, respectively. - */ - exports.search = function search(aNeedle, aHaystack, aCompare) { - return aHaystack.length > 0 - ? recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack, aCompare) - : null; - }; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/source-node', ['require', 'exports', 'module' , 'source-map/source-map-generator', 'source-map/util'], function(require, exports, module) { - - var SourceMapGenerator = require('./source-map-generator').SourceMapGenerator; - var util = require('./util'); - - /** - * SourceNodes provide a way to abstract over interpolating/concatenating - * snippets of generated JavaScript source code while maintaining the line and - * column information associated with the original source code. - * - * @param aLine The original line number. - * @param aColumn The original column number. - * @param aSource The original source's filename. - * @param aChunks Optional. An array of strings which are snippets of - * generated JS, or other SourceNodes. - * @param aName The original identifier. - */ - function SourceNode(aLine, aColumn, aSource, aChunks, aName) { - this.children = []; - this.sourceContents = {}; - this.line = aLine === undefined ? null : aLine; - this.column = aColumn === undefined ? null : aColumn; - this.source = aSource === undefined ? null : aSource; - this.name = aName === undefined ? null : aName; - if (aChunks != null) this.add(aChunks); - } - - /** - * Creates a SourceNode from generated code and a SourceMapConsumer. - * - * @param aGeneratedCode The generated code - * @param aSourceMapConsumer The SourceMap for the generated code - */ - SourceNode.fromStringWithSourceMap = - function SourceNode_fromStringWithSourceMap(aGeneratedCode, aSourceMapConsumer) { - // The SourceNode we want to fill with the generated code - // and the SourceMap - var node = new SourceNode(); - - // The generated code - // Processed fragments are removed from this array. - var remainingLines = aGeneratedCode.split('\n'); - - // We need to remember the position of "remainingLines" - var lastGeneratedLine = 1, lastGeneratedColumn = 0; - - // The generate SourceNodes we need a code range. - // To extract it current and last mapping is used. - // Here we store the last mapping. - var lastMapping = null; - - aSourceMapConsumer.eachMapping(function (mapping) { - if (lastMapping === null) { - // We add the generated code until the first mapping - // to the SourceNode without any mapping. - // Each line is added as separate string. - while (lastGeneratedLine < mapping.generatedLine) { - node.add(remainingLines.shift() + "\n"); - lastGeneratedLine++; - } - if (lastGeneratedColumn < mapping.generatedColumn) { - var nextLine = remainingLines[0]; - node.add(nextLine.substr(0, mapping.generatedColumn)); - remainingLines[0] = nextLine.substr(mapping.generatedColumn); - lastGeneratedColumn = mapping.generatedColumn; - } - } else { - // We add the code from "lastMapping" to "mapping": - // First check if there is a new line in between. - if (lastGeneratedLine < mapping.generatedLine) { - var code = ""; - // Associate full lines with "lastMapping" - do { - code += remainingLines.shift() + "\n"; - lastGeneratedLine++; - lastGeneratedColumn = 0; - } while (lastGeneratedLine < mapping.generatedLine); - // When we reached the correct line, we add code until we - // reach the correct column too. - if (lastGeneratedColumn < mapping.generatedColumn) { - var nextLine = remainingLines[0]; - code += nextLine.substr(0, mapping.generatedColumn); - remainingLines[0] = nextLine.substr(mapping.generatedColumn); - lastGeneratedColumn = mapping.generatedColumn; - } - // Create the SourceNode. - addMappingWithCode(lastMapping, code); - } else { - // There is no new line in between. - // Associate the code between "lastGeneratedColumn" and - // "mapping.generatedColumn" with "lastMapping" - var nextLine = remainingLines[0]; - var code = nextLine.substr(0, mapping.generatedColumn - - lastGeneratedColumn); - remainingLines[0] = nextLine.substr(mapping.generatedColumn - - lastGeneratedColumn); - lastGeneratedColumn = mapping.generatedColumn; - addMappingWithCode(lastMapping, code); - } - } - lastMapping = mapping; - }, this); - // We have processed all mappings. - // Associate the remaining code in the current line with "lastMapping" - // and add the remaining lines without any mapping - addMappingWithCode(lastMapping, remainingLines.join("\n")); - - // Copy sourcesContent into SourceNode - aSourceMapConsumer.sources.forEach(function (sourceFile) { - var content = aSourceMapConsumer.sourceContentFor(sourceFile); - if (content) { - node.setSourceContent(sourceFile, content); - } - }); - - return node; - - function addMappingWithCode(mapping, code) { - if (mapping === null || mapping.source === undefined) { - node.add(code); - } else { - node.add(new SourceNode(mapping.originalLine, - mapping.originalColumn, - mapping.source, - code, - mapping.name)); - } - } - }; - - /** - * Add a chunk of generated JS to this source node. - * - * @param aChunk A string snippet of generated JS code, another instance of - * SourceNode, or an array where each member is one of those things. - */ - SourceNode.prototype.add = function SourceNode_add(aChunk) { - if (Array.isArray(aChunk)) { - aChunk.forEach(function (chunk) { - this.add(chunk); - }, this); - } - else if (aChunk instanceof SourceNode || typeof aChunk === "string") { - if (aChunk) { - this.children.push(aChunk); - } - } - else { - throw new TypeError( - "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk - ); - } - return this; - }; - - /** - * Add a chunk of generated JS to the beginning of this source node. - * - * @param aChunk A string snippet of generated JS code, another instance of - * SourceNode, or an array where each member is one of those things. - */ - SourceNode.prototype.prepend = function SourceNode_prepend(aChunk) { - if (Array.isArray(aChunk)) { - for (var i = aChunk.length-1; i >= 0; i--) { - this.prepend(aChunk[i]); - } - } - else if (aChunk instanceof SourceNode || typeof aChunk === "string") { - this.children.unshift(aChunk); - } - else { - throw new TypeError( - "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk - ); - } - return this; - }; - - /** - * Walk over the tree of JS snippets in this node and its children. The - * walking function is called once for each snippet of JS and is passed that - * snippet and the its original associated source's line/column location. - * - * @param aFn The traversal function. - */ - SourceNode.prototype.walk = function SourceNode_walk(aFn) { - var chunk; - for (var i = 0, len = this.children.length; i < len; i++) { - chunk = this.children[i]; - if (chunk instanceof SourceNode) { - chunk.walk(aFn); - } - else { - if (chunk !== '') { - aFn(chunk, { source: this.source, - line: this.line, - column: this.column, - name: this.name }); - } - } - } - }; - - /** - * Like `String.prototype.join` except for SourceNodes. Inserts `aStr` between - * each of `this.children`. - * - * @param aSep The separator. - */ - SourceNode.prototype.join = function SourceNode_join(aSep) { - var newChildren; - var i; - var len = this.children.length; - if (len > 0) { - newChildren = []; - for (i = 0; i < len-1; i++) { - newChildren.push(this.children[i]); - newChildren.push(aSep); - } - newChildren.push(this.children[i]); - this.children = newChildren; - } - return this; - }; - - /** - * Call String.prototype.replace on the very right-most source snippet. Useful - * for trimming whitespace from the end of a source node, etc. - * - * @param aPattern The pattern to replace. - * @param aReplacement The thing to replace the pattern with. - */ - SourceNode.prototype.replaceRight = function SourceNode_replaceRight(aPattern, aReplacement) { - var lastChild = this.children[this.children.length - 1]; - if (lastChild instanceof SourceNode) { - lastChild.replaceRight(aPattern, aReplacement); - } - else if (typeof lastChild === 'string') { - this.children[this.children.length - 1] = lastChild.replace(aPattern, aReplacement); - } - else { - this.children.push(''.replace(aPattern, aReplacement)); - } - return this; - }; - - /** - * Set the source content for a source file. This will be added to the SourceMapGenerator - * in the sourcesContent field. - * - * @param aSourceFile The filename of the source file - * @param aSourceContent The content of the source file - */ - SourceNode.prototype.setSourceContent = - function SourceNode_setSourceContent(aSourceFile, aSourceContent) { - this.sourceContents[util.toSetString(aSourceFile)] = aSourceContent; - }; - - /** - * Walk over the tree of SourceNodes. The walking function is called for each - * source file content and is passed the filename and source content. - * - * @param aFn The traversal function. - */ - SourceNode.prototype.walkSourceContents = - function SourceNode_walkSourceContents(aFn) { - for (var i = 0, len = this.children.length; i < len; i++) { - if (this.children[i] instanceof SourceNode) { - this.children[i].walkSourceContents(aFn); - } - } - - var sources = Object.keys(this.sourceContents); - for (var i = 0, len = sources.length; i < len; i++) { - aFn(util.fromSetString(sources[i]), this.sourceContents[sources[i]]); - } - }; - - /** - * Return the string representation of this source node. Walks over the tree - * and concatenates all the various snippets together to one string. - */ - SourceNode.prototype.toString = function SourceNode_toString() { - var str = ""; - this.walk(function (chunk) { - str += chunk; - }); - return str; - }; - - /** - * Returns the string representation of this source node along with a source - * map. - */ - SourceNode.prototype.toStringWithSourceMap = function SourceNode_toStringWithSourceMap(aArgs) { - var generated = { - code: "", - line: 1, - column: 0 - }; - var map = new SourceMapGenerator(aArgs); - var sourceMappingActive = false; - var lastOriginalSource = null; - var lastOriginalLine = null; - var lastOriginalColumn = null; - var lastOriginalName = null; - this.walk(function (chunk, original) { - generated.code += chunk; - if (original.source !== null - && original.line !== null - && original.column !== null) { - if(lastOriginalSource !== original.source - || lastOriginalLine !== original.line - || lastOriginalColumn !== original.column - || lastOriginalName !== original.name) { - map.addMapping({ - source: original.source, - original: { - line: original.line, - column: original.column - }, - generated: { - line: generated.line, - column: generated.column - }, - name: original.name - }); - } - lastOriginalSource = original.source; - lastOriginalLine = original.line; - lastOriginalColumn = original.column; - lastOriginalName = original.name; - sourceMappingActive = true; - } else if (sourceMappingActive) { - map.addMapping({ - generated: { - line: generated.line, - column: generated.column - } - }); - lastOriginalSource = null; - sourceMappingActive = false; - } - chunk.split('').forEach(function (ch) { - if (ch === '\n') { - generated.line++; - generated.column = 0; - } else { - generated.column++; - } - }); - }); - this.walkSourceContents(function (sourceFile, sourceContent) { - map.setSourceContent(sourceFile, sourceContent); - }); - - return { code: generated.code, map: map }; - }; - - exports.SourceNode = SourceNode; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/////////////////////////////////////////////////////////////////////////////// - -this.sourceMap = { - SourceMapConsumer: require('source-map/source-map-consumer').SourceMapConsumer, - SourceMapGenerator: require('source-map/source-map-generator').SourceMapGenerator, - SourceNode: require('source-map/source-node').SourceNode -}; - -// footer to wrap "source-map" module - return this.sourceMap; - }(); -})(); \ No newline at end of file diff --git a/awx/ui/static/lib/less/dist/less-rhino-1.7.2.js b/awx/ui/static/lib/less/dist/less-rhino-1.7.2.js deleted file mode 100644 index fcb1a6ea03..0000000000 --- a/awx/ui/static/lib/less/dist/less-rhino-1.7.2.js +++ /dev/null @@ -1,9313 +0,0 @@ -/* Less.js v1.7.2 RHINO | Copyright (c) 2009-2014, Alexis Sellier */ - -// -// Stub out `require` in rhino -// -function require(arg) { - var split = arg.split('/'); - var resultModule = split.length == 1 ? less.modules[split[0]] : less[split[1]]; - if (!resultModule) { - throw { message: "Cannot find module '" + arg + "'"}; - } - return resultModule; -} - - -if (typeof(window) === 'undefined') { less = {} } -else { less = window.less = {} } -tree = less.tree = {}; -less.mode = 'rhino'; - -(function() { - - console = function() { - var stdout = java.lang.System.out; - var stderr = java.lang.System.err; - - function doLog(out, type) { - return function() { - var args = java.lang.reflect.Array.newInstance(java.lang.Object, arguments.length - 1); - var format = arguments[0]; - var conversionIndex = 0; - // need to look for %d (integer) conversions because in Javascript all numbers are doubles - for (var i = 1; i < arguments.length; i++) { - var arg = arguments[i]; - if (conversionIndex != -1) { - conversionIndex = format.indexOf('%', conversionIndex); - } - if (conversionIndex >= 0 && conversionIndex < format.length) { - var conversion = format.charAt(conversionIndex + 1); - if (conversion === 'd' && typeof arg === 'number') { - arg = new java.lang.Integer(new java.lang.Double(arg).intValue()); - } - conversionIndex++; - } - args[i-1] = arg; - } - try { - out.println(type + java.lang.String.format(format, args)); - } catch(ex) { - stderr.println(ex); - } - } - } - return { - log: doLog(stdout, ''), - info: doLog(stdout, 'INFO: '), - error: doLog(stderr, 'ERROR: '), - warn: doLog(stderr, 'WARN: ') - }; - }(); - - less.modules = {}; - - less.modules.path = { - join: function() { - var parts = []; - for (i in arguments) { - parts = parts.concat(arguments[i].split(/\/|\\/)); - } - var result = []; - for (i in parts) { - var part = parts[i]; - if (part === '..' && result.length > 0 && result[result.length-1] !== '..') { - result.pop(); - } else if (part === '' && result.length > 0) { - // skip - } else if (part !== '.') { - if (part.slice(-1)==='\\' || part.slice(-1)==='/') { - part = part.slice(0, -1); - } - result.push(part); - } - } - return result.join('/'); - }, - dirname: function(p) { - var path = p.split('/'); - path.pop(); - return path.join('/'); - }, - basename: function(p, ext) { - var base = p.split('/').pop(); - if (ext) { - var index = base.lastIndexOf(ext); - if (base.length === index + ext.length) { - base = base.substr(0, index); - } - } - return base; - }, - extname: function(p) { - var index = p.lastIndexOf('.'); - return index > 0 ? p.substring(index) : ''; - } - }; - - less.modules.fs = { - readFileSync: function(name) { - // read a file into a byte array - var file = new java.io.File(name); - var stream = new java.io.FileInputStream(file); - var buffer = []; - var c; - while ((c = stream.read()) != -1) { - buffer.push(c); - } - stream.close(); - return { - length: buffer.length, - toString: function(enc) { - if (enc === 'base64') { - return encodeBase64Bytes(buffer); - } else if (enc) { - return java.lang.String["(byte[],java.lang.String)"](buffer, enc); - } else { - return java.lang.String["(byte[])"](buffer); - } - } - }; - } - }; - - less.encoder = { - encodeBase64: function(str) { - return encodeBase64String(str); - } - }; - - // --------------------------------------------------------------------------------------------- - // private helper functions - // --------------------------------------------------------------------------------------------- - - function encodeBase64Bytes(bytes) { - // requires at least a JRE Platform 6 (or JAXB 1.0 on the classpath) - return javax.xml.bind.DatatypeConverter.printBase64Binary(bytes) - } - function encodeBase64String(str) { - return encodeBase64Bytes(new java.lang.String(str).getBytes()); - } - -})(); - -var less, tree; - -// Node.js does not have a header file added which defines less -if (less === undefined) { - less = exports; - tree = require('./tree'); - less.mode = 'node'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `currentPos` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - saveStack = [], // holds state for backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // current chunk - currentPos, // index of current chunk, in `input` - parser, - parsers, - rootFilename = env && env.filename; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed around by reference. - if (!(env instanceof tree.parseEnv)) { - env = new tree.parseEnv(env); - } - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - contentsIgnoredChars: env.contentsIgnoredChars, // lines inserted, not in the original less - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, currentFileInfo, importOptions, callback) { - var parserImports = this; - this.queue.push(path); - - var fileParsedFunc = function (e, root, fullPath) { - parserImports.queue.splice(parserImports.queue.indexOf(path), 1); // Remove the path from the queue - - var importedPreviously = fullPath === rootFilename; - - parserImports.files[fullPath] = root; // Store the root - - if (e && !parserImports.error) { parserImports.error = e; } - - callback(e, root, importedPreviously, fullPath); - }; - - if (less.Parser.importer) { - less.Parser.importer(path, currentFileInfo, fileParsedFunc, env); - } else { - less.Parser.fileLoader(path, currentFileInfo, function(e, contents, fullPath, newFileInfo) { - if (e) {fileParsedFunc(e); return;} - - var newEnv = new tree.parseEnv(env); - - newEnv.currentFileInfo = newFileInfo; - newEnv.processImports = false; - newEnv.contents[fullPath] = contents; - - if (currentFileInfo.reference || importOptions.reference) { - newFileInfo.reference = true; - } - - if (importOptions.inline) { - fileParsedFunc(null, contents, fullPath); - } else { - new(less.Parser)(newEnv).parse(contents, function (e, root) { - fileParsedFunc(e, root, fullPath); - }); - } - }, env); - } - } - }; - - function save() { currentPos = i; saveStack.push( { current: current, i: i, j: j }); } - function restore() { var state = saveStack.pop(); current = state.current; currentPos = i = state.i; j = state.j; } - function forget() { saveStack.pop(); } - - function sync() { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - } - function isWhitespace(str, pos) { - var code = str.charCodeAt(pos | 0); - return (code <= 32) && (code === 32 || code === 10 || code === 9); - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var tokType = typeof tok, - match, length; - - // Either match a single character in the input, - // or match a regexp in the current chunk (`current`). - // - if (tokType === "string") { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - // regexp - sync (); - if (! (match = tok.exec(current))) { - return null; - } - - length = match[0].length; - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - - // Specialization of $(tok) - function $re(tok) { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - var m = tok.exec(current); - if (!m) { - return null; - } - - skipWhitespace(m[0].length); - if(typeof m === "string") { - return m; - } - - return m.length === 1 ? m[0] : m; - } - - var _$re = $re; - - // Specialization of $(tok) - function $char(tok) { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - curr = i - currentPos, - endIndex = i + current.length - curr, - mem = (i += length), - inp = input, - c; - - for (; i < endIndex; i++) { - c = inp.charCodeAt(i); - if (c > 32) { - break; - } - - if ((c !== 32) && (c !== 10) && (c !== 9) && (c !== 13)) { - break; - } - } - - current = current.slice(length + i - mem + curr); - currentPos = i; - - if (!current.length && (j < chunks.length - 1)) { - current = chunks[++j]; - skipWhitespace(0); // skip space at the beginning of a chunk - return true; // things changed - } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - // some older browsers return typeof 'function' for RegExp - var result = (Object.prototype.toString.call(arg) === '[object Function]') ? arg.call(parsers) : $(arg); - if (result) { - return result; - } - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } - - // Specialization of expect() - function expectChar(arg, msg) { - if (input.charAt(i) === arg) { - skipWhitespace(1); - return arg; - } - error(msg || "expected '" + arg + "' got '" + input.charAt(i) + "'"); - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - return tok.test(current); - } - } - - // Specialization of peek() - function peekChar(tok) { - return input.charAt(i) === tok; - } - - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, inputStream) { - var n = index + 1, - line = null, - column = -1; - - while (--n >= 0 && inputStream.charAt(n) !== '\n') { - column++; - } - - if (typeof index === 'number') { - line = (inputStream.slice(0, index).match(/\n/g) || "").length; - } - - return { - line: line, - column: column - }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - callLine = e.call && getLocation(e.call, input).line, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = callLine + 1; - this.callExtract = lines[callLine]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // @param str A string containing 'less' markup - // @param callback call `callback` when done. - // @param [additionalData] An optional map which can contains vars - a map (key, value) of variables to apply - // - parse: function (str, callback, additionalData) { - var root, line, lines, error = null, globalVars, modifyVars, preText = ""; - - i = j = currentPos = furthest = 0; - - globalVars = (additionalData && additionalData.globalVars) ? less.Parser.serializeVars(additionalData.globalVars) + '\n' : ''; - modifyVars = (additionalData && additionalData.modifyVars) ? '\n' + less.Parser.serializeVars(additionalData.modifyVars) : ''; - - if (globalVars || (additionalData && additionalData.banner)) { - preText = ((additionalData && additionalData.banner) ? additionalData.banner : "") + globalVars; - parser.imports.contentsIgnoredChars[env.currentFileInfo.filename] = preText.length; - } - - str = str.replace(/\r\n/g, '\n'); - // Remove potential UTF Byte Order Mark - input = str = preText + str.replace(/^\uFEFF/, '') + modifyVars; - parser.imports.contents[env.currentFileInfo.filename] = str; - - // Split the input into chunks. - chunks = (function (input) { - var len = input.length, level = 0, parenLevel = 0, - lastOpening, lastOpeningParen, lastMultiComment, lastMultiCommentEndBrace, - chunks = [], emitFrom = 0, - parserCurrentIndex, currentChunkStartIndex, cc, cc2, matched; - - function fail(msg, index) { - error = new(LessError)({ - index: index || parserCurrentIndex, - type: 'Parse', - message: msg, - filename: env.currentFileInfo.filename - }, env); - } - - function emitChunk(force) { - var len = parserCurrentIndex - emitFrom; - if (((len < 512) && !force) || !len) { - return; - } - chunks.push(input.slice(emitFrom, parserCurrentIndex + 1)); - emitFrom = parserCurrentIndex + 1; - } - - for (parserCurrentIndex = 0; parserCurrentIndex < len; parserCurrentIndex++) { - cc = input.charCodeAt(parserCurrentIndex); - if (((cc >= 97) && (cc <= 122)) || (cc < 34)) { - // a-z or whitespace - continue; - } - - switch (cc) { - case 40: // ( - parenLevel++; - lastOpeningParen = parserCurrentIndex; - continue; - case 41: // ) - if (--parenLevel < 0) { - return fail("missing opening `(`"); - } - continue; - case 59: // ; - if (!parenLevel) { emitChunk(); } - continue; - case 123: // { - level++; - lastOpening = parserCurrentIndex; - continue; - case 125: // } - if (--level < 0) { - return fail("missing opening `{`"); - } - if (!level && !parenLevel) { emitChunk(); } - continue; - case 92: // \ - if (parserCurrentIndex < len - 1) { parserCurrentIndex++; continue; } - return fail("unescaped `\\`"); - case 34: - case 39: - case 96: // ", ' and ` - matched = 0; - currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 1; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 > 96) { continue; } - if (cc2 == cc) { matched = 1; break; } - if (cc2 == 92) { // \ - if (parserCurrentIndex == len - 1) { - return fail("unescaped `\\`"); - } - parserCurrentIndex++; - } - } - if (matched) { continue; } - return fail("unmatched `" + String.fromCharCode(cc) + "`", currentChunkStartIndex); - case 47: // /, check for comment - if (parenLevel || (parserCurrentIndex == len - 1)) { continue; } - cc2 = input.charCodeAt(parserCurrentIndex + 1); - if (cc2 == 47) { - // //, find lnfeed - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if ((cc2 <= 13) && ((cc2 == 10) || (cc2 == 13))) { break; } - } - } else if (cc2 == 42) { - // /*, find */ - lastMultiComment = currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len - 1; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 == 125) { lastMultiCommentEndBrace = parserCurrentIndex; } - if (cc2 != 42) { continue; } - if (input.charCodeAt(parserCurrentIndex + 1) == 47) { break; } - } - if (parserCurrentIndex == len - 1) { - return fail("missing closing `*/`", currentChunkStartIndex); - } - parserCurrentIndex++; - } - continue; - case 42: // *, check for unmatched */ - if ((parserCurrentIndex < len - 1) && (input.charCodeAt(parserCurrentIndex + 1) == 47)) { - return fail("unmatched `/*`"); - } - continue; - } - } - - if (level !== 0) { - if ((lastMultiComment > lastOpening) && (lastMultiCommentEndBrace > lastMultiComment)) { - return fail("missing closing `}` or `*/`", lastOpening); - } else { - return fail("missing closing `}`", lastOpening); - } - } else if (parenLevel !== 0) { - return fail("missing closing `)`", lastOpeningParen); - } - - emitChunk(true); - return chunks; - })(str); - - if (error) { - return callback(new(LessError)(error, env)); - } - - current = chunks[0]; - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)(null, this.parsers.primary()); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - return function (options, variables) { - options = options || {}; - var evaldRoot, - css, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, null, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var preEvalVisitors = [], - visitors = [ - new(tree.joinSelectorVisitor)(), - new(tree.processExtendsVisitor)(), - new(tree.toCSSVisitor)({compress: Boolean(options.compress)}) - ], i, root = this; - - if (options.plugins) { - for(i =0; i < options.plugins.length; i++) { - if (options.plugins[i].isPreEvalVisitor) { - preEvalVisitors.push(options.plugins[i]); - } else { - if (options.plugins[i].isPreVisitor) { - visitors.splice(0, 0, options.plugins[i]); - } else { - visitors.push(options.plugins[i]); - } - } - } - } - - for(i = 0; i < preEvalVisitors.length; i++) { - preEvalVisitors[i].run(root); - } - - evaldRoot = evaluate.call(root, evalEnv); - - for(i = 0; i < visitors.length; i++) { - visitors[i].run(evaldRoot); - } - - if (options.sourceMap) { - evaldRoot = new tree.sourceMapOutput( - { - contentsIgnoredCharsMap: parser.imports.contentsIgnoredChars, - writeSourceMap: options.writeSourceMap, - rootNode: evaldRoot, - contentsMap: parser.imports.contents, - sourceMapFilename: options.sourceMapFilename, - sourceMapURL: options.sourceMapURL, - outputFilename: options.sourceMapOutputFilename, - sourceMapBasepath: options.sourceMapBasepath, - sourceMapRootpath: options.sourceMapRootpath, - outputSourceFiles: options.outputSourceFiles, - sourceMapGenerator: options.sourceMapGenerator - }); - } - - css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits), - numPrecision: 8}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.cleancss && less.mode === 'node') { - var CleanCSS = require('clean-css'), - cleancssOptions = options.cleancssOptions || {}; - - if (cleancssOptions.keepSpecialComments === undefined) { - cleancssOptions.keepSpecialComments = "*"; - } - cleancssOptions.processImport = false; - cleancssOptions.noRebase = true; - if (cleancssOptions.noAdvanced === undefined) { - cleancssOptions.noAdvanced = true; - } - - return new CleanCSS(cleancssOptions).minify(css); - } else if (options.compress) { - return css.replace(/(^(\s)+)|((\s)+$)/g, ""); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - var loc = getLocation(i, input); - lines = input.split('\n'); - line = loc.line + 1; - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: loc.column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - return callback(e); - } - else { - return callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - return finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some Less code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: parsers = { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var mixin = this.mixin, $re = _$re, root = [], node; - - while (current) - { - node = this.extendRule() || mixin.definition() || this.rule() || this.ruleset() || - mixin.call() || this.comment() || this.rulesetCall() || this.directive(); - if (node) { - root.push(node); - } else { - if (!($re(/^[\s\n]+/) || $re(/^;+/))) { - break; - } - } - if (peekChar('}')) { - break; - } - } - - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') { return; } - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($re(/^\/\/.*/), true, i, env.currentFileInfo); - } - comment = $re(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/); - if (comment) { - return new(tree.Comment)(comment, false, i, env.currentFileInfo); - } - }, - - comments: function () { - var comment, comments = []; - - while(true) { - comment = this.comment(); - if (!comment) { - break; - } - comments.push(comment); - } - - return comments; - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; } - - if (e) { $char('~'); } - - str = $re(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/); - if (str) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - k = $re(/^%|^[_A-Za-z-][_A-Za-z0-9-]*/); - if (k) { - var color = tree.Color.fromKeyword(k); - if (color) { - return color; - } - return new(tree.Keyword)(k); - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(current); - if (!name) { return; } - - name = name[1]; - nameLC = name.toLowerCase(); - if (nameLC === 'url') { - return null; - } - - i += name.length; - - if (nameLC === 'alpha') { - alpha_ret = parsers.alpha(); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $char('('); // Parse the '(' and consume whitespace. - - args = this.arguments(); - - if (! $char(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (true) { - arg = this.assignment() || parsers.expression(); - if (!arg) { - break; - } - args.push(arg); - if (! $char(',')) { - break; - } - } - return args; - }, - literal: function () { - return this.dimension() || - this.color() || - this.quoted() || - this.unicodeDescriptor(); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - key = $re(/^\w+(?=\s?=)/i); - if (!key) { - return; - } - if (!$char('=')) { - return; - } - value = parsers.entity(); - if (value) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$re(/^url\(/)) { - return; - } - - value = this.quoted() || this.variable() || - $re(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expectChar(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $re(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var curly, index = i; - - if (input.charAt(i) === '@' && (curly = $re(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $re(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - var colorCandidateString = rgb.input.match(/^#([\w]+).*/); // strip colons, brackets, whitespaces and other characters that should not definitely be part of color string - colorCandidateString = colorCandidateString[1]; - if (!colorCandidateString.match(/^[A-Fa-f0-9]+$/)) { // verify if candidate consists only of allowed HEX characters - error("Invalid HEX color code"); - } - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) { - return; - } - - value = $re(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/); - if (value) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - ud = $re(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/); - if (ud) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '`') { return; } - if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) { - error("You are using JavaScript, which has been disabled."); - } - - if (e) { $char('~'); } - - str = $re(/^`([^`]*)`/); - if (str) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*:/))) { return name[1]; } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink(); - // - rulesetCall: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*\(\s*\)\s*;/))) { - return new tree.RulesetCall(name[1]); - } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList, extend; - - if (!(isRule ? $re(/^&:extend\(/) : $re(/^:extend\(/))) { return; } - - do { - option = null; - elements = null; - while (! (option = $re(/^(all)(?=\s*(\)|,))/))) { - e = this.element(); - if (!e) { break; } - if (elements) { elements.push(e); } else { elements = [ e ]; } - } - - option = option && option[1]; - - extend = new(tree.Extend)(new(tree.Selector)(elements), option, index); - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - - } while($char(",")); - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var s = input.charAt(i), important = false, index = i, elemIndex, - elements, elem, e, c, args; - - if (s !== '.' && s !== '#') { return; } - - save(); // stop us absorbing part of an invalid selector - - while (true) { - elemIndex = i; - e = $re(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/); - if (!e) { - break; - } - elem = new(tree.Element)(c, e, elemIndex, env.currentFileInfo); - if (elements) { elements.push(elem); } else { elements = [ elem ]; } - c = $char('>'); - } - - if (elements) { - if ($char('(')) { - args = this.args(true).args; - expectChar(')'); - } - - if (parsers.important()) { - important = true; - } - - if (parsers.end()) { - forget(); - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - } - - restore(); - }, - args: function (isCall) { - var parsers = parser.parsers, entities = parsers.entities, - returner = { args:null, variadic: false }, - expressions = [], argsSemiColon = [], argsComma = [], - isSemiColonSeperated, expressionContainsNamed, name, nameLoop, value, arg; - - save(); - - while (true) { - if (isCall) { - arg = parsers.detachedRuleset() || parsers.expression(); - } else { - parsers.comments(); - if (input.charAt(i) === '.' && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = entities.variable() || entities.literal() || entities.keyword(); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value && arg.value.length == 1) { - val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($char(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - - // we do not support setting a ruleset as a default variable - it doesn't make sense - // However if we do want to add it, there is nothing blocking it, just don't error - // and remove isCall dependency below - value = (isCall && parsers.detachedRuleset()) || parsers.expression(); - - if (!value) { - if (isCall) { - error("could not understand value for named argument"); - } else { - restore(); - returner.args = []; - return returner; - } - } - nameLoop = (name = val.name); - } else if (!isCall && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($char(',')) { - continue; - } - - if ($char(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - forget(); - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) { - return; - } - - save(); - - match = $re(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/); - if (match) { - name = match[1]; - - var argInfo = this.args(false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. - // also - // .mixincall(@a: {rule: set;}); - // so we have to be nice and restore - if (!$char(')')) { - furthest = i; - restore(); - return; - } - - parsers.comments(); - - if ($re(/^when/)) { // Guard - cond = expect(parsers.conditions, 'expected condition'); - } - - ruleset = parsers.block(); - - if (ruleset) { - forget(); - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } else { - forget(); - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - var entities = this.entities; - - return entities.literal() || entities.variable() || entities.url() || - entities.call() || entities.keyword() || entities.javascript() || - this.comment(); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $char(';') || peekChar('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $re(/^\(opacity=/i)) { return; } - value = $re(/^\d+/) || this.entities.variable(); - if (value) { - expectChar(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, c, v, index = i; - - c = this.combinator(); - - e = $re(/^(?:\d+\.\d+|\d+)%/) || $re(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $char('*') || $char('&') || this.attribute() || $re(/^\([^()@]+\)/) || $re(/^[\.#](?=@)/) || - this.entities.variableCurly(); - - if (! e) { - save(); - if ($char('(')) { - if ((v = this.selector()) && $char(')')) { - e = new(tree.Paren)(v); - forget(); - } else { - restore(); - } - } else { - forget(); - } - } - - if (e) { return new(tree.Element)(c, e, index, env.currentFileInfo); } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|' || c === '^') { - i++; - if (input.charAt(i) === '^') { - c = '^^'; - i++; - } - while (isWhitespace(input, i)) { i++; } - return new(tree.Combinator)(c); - } else if (isWhitespace(input, i - 1)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - // - // A CSS selector (see selector below) - // with less extensions e.g. the ability to extend and guard - // - lessSelector: function () { - return this.selector(true); - }, - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function (isLess) { - var index = i, $re = _$re, elements, extendList, c, e, extend, when, condition; - - while ((isLess && (extend = this.extend())) || (isLess && (when = $re(/^when/))) || (e = this.element())) { - if (when) { - condition = expect(this.conditions, 'expected condition'); - } else if (condition) { - error("CSS guard can only be used at the end of selector"); - } else if (extend) { - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - } else { - if (extendList) { error("Extend can only be used at the end of selector"); } - c = input.charAt(i); - if (elements) { elements.push(e); } else { elements = [ e ]; } - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { - break; - } - } - - if (elements) { return new(tree.Selector)(elements, extendList, condition, index, env.currentFileInfo); } - if (extendList) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - if (! $char('[')) { return; } - - var entities = this.entities, - key, val, op; - - if (!(key = entities.variableCurly())) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - op = $re(/^[|~*$^]?=/); - if (op) { - val = entities.quoted() || $re(/^[0-9]+%/) || $re(/^[\w-]+/) || entities.variableCurly(); - } - - expectChar(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($char('{') && (content = this.primary()) && $char('}')) { - return content; - } - }, - - blockRuleset: function() { - var block = this.block(); - - if (block) { - block = new tree.Ruleset(null, block); - } - return block; - }, - - detachedRuleset: function() { - var blockRuleset = this.blockRuleset(); - if (blockRuleset) { - return new tree.DetachedRuleset(blockRuleset); - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors, s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - while (true) { - s = this.lessSelector(); - if (!s) { - break; - } - if (selectors) { selectors.push(s); } else { selectors = [ s ]; } - this.comments(); - if (s.condition && selectors.length > 1) { - error("Guards are only currently allowed on a single selector."); - } - if (! $char(',')) { break; } - if (s.condition) { - error("Guards are only currently allowed on a single selector."); - } - this.comments(); - } - - if (selectors && (rules = this.block())) { - forget(); - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) { - ruleset.debugInfo = debugInfo; - } - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, startOfRule = i, c = input.charAt(startOfRule), important, merge, isVariable; - - if (c === '.' || c === '#' || c === '&') { return; } - - save(); - - name = this.variable() || this.ruleProperty(); - if (name) { - isVariable = typeof name === "string"; - - if (isVariable) { - value = this.detachedRuleset(); - } - - if (!value) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || isVariable) ? - (this.value() || this.anonymousValue()) : - (this.anonymousValue() || this.value()); - - important = this.important(); - - // a name returned by this.ruleProperty() is always an array of the form: - // [string-1, ..., string-n, ""] or [string-1, ..., string-n, "+"] - // where each item is a tree.Keyword or tree.Variable - merge = !isVariable && name.pop().value; - } - - if (value && this.end()) { - forget(); - return new (tree.Rule)(name, value, important, merge, startOfRule, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } else { - forget(); - } - }, - anonymousValue: function () { - var match; - match = /^([^@+\/'"*`(;{}-]*);/.exec(current); - if (match) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $re(/^@import?\s+/); - - var options = (dir ? this.importOptions() : null) || {}; - - if (dir && (path = this.entities.quoted() || this.entities.url())) { - features = this.mediaFeatures(); - if ($char(';')) { - forget(); - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $char('(')) { return null; } - do { - o = this.importOption(); - if (o) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $char(',')) { break; } - } - } while (o); - expectChar(')'); - return options; - }, - - importOption: function() { - var opt = $re(/^(less|css|multiple|once|inline|reference)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var entities = this.entities, nodes = [], e, p; - do { - e = entities.keyword() || entities.variable(); - if (e) { - nodes.push(e); - } else if ($char('(')) { - p = this.property(); - e = this.value(); - if ($char(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null; } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var entities = this.entities, features = [], e; - do { - e = this.mediaFeature(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } else { - e = entities.variable(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - if ($re(/^@media/)) { - features = this.mediaFeatures(); - - rules = this.block(); - if (rules) { - media = new(tree.Media)(rules, features, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - media.debugInfo = debugInfo; - } - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var index = i, name, value, rules, nonVendorSpecificName, - hasIdentifier, hasExpression, hasUnknown, hasBlock = true; - - if (input.charAt(i) !== '@') { return; } - - value = this['import']() || this.media(); - if (value) { - return value; - } - - save(); - - name = $re(/^@[a-z-]+/); - - if (!name) { return; } - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - /* - case "@font-face": - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - */ - case "@charset": - hasIdentifier = true; - hasBlock = false; - break; - case "@namespace": - hasExpression = true; - hasBlock = false; - break; - case "@keyframes": - hasIdentifier = true; - break; - case "@host": - case "@page": - case "@document": - case "@supports": - hasUnknown = true; - break; - } - - if (hasIdentifier) { - value = this.entity(); - if (!value) { - error("expected " + name + " identifier"); - } - } else if (hasExpression) { - value = this.expression(); - if (!value) { - error("expected " + name + " expression"); - } - } else if (hasUnknown) { - value = ($re(/^[^{;]+/) || '').trim(); - if (value) { - value = new(tree.Anonymous)(value); - } - } - - if (hasBlock) { - rules = this.blockRuleset(); - } - - if (rules || (!hasBlock && value && $char(';'))) { - forget(); - return new(tree.Directive)(name, value, rules, index, env.currentFileInfo, - env.dumpLineNumbers ? getDebugInfo(index, input, env) : null); - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = []; - - do { - e = this.expression(); - if (e) { - expressions.push(e); - if (! $char(',')) { break; } - } - } while(e); - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $re(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($char('(')) { - a = this.addition(); - if (a) { - e = new(tree.Expression)([a]); - expectChar(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced; - m = this.operand(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - if (peek(/^\/[*\/]/)) { - break; - } - op = $char('/') || $char('*'); - - if (!op) { break; } - - a = this.operand(); - - if (!a) { break; } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - m = this.multiplication(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - op = $re(/^[-+]\s+/) || (!isSpaced && ($char('+') || $char('-'))); - if (!op) { - break; - } - a = this.multiplication(); - if (!a) { - break; - } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - a = this.condition(); - if (a) { - while (true) { - if (!peek(/^,\s*(not\s*)?\(/) || !$char(',')) { - break; - } - b = this.condition(); - if (!b) { - break; - } - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var entities = this.entities, index = i, negate = false, - a, b, c, op; - - if ($re(/^not/)) { negate = true; } - expectChar('('); - a = this.addition() || entities.keyword() || entities.quoted(); - if (a) { - op = $re(/^(?:>=|<=|=<|[<=>])/); - if (op) { - b = this.addition() || entities.keyword() || entities.quoted(); - if (b) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expectChar(')'); - return $re(/^and/) ? new(tree.Condition)('and', c, this.condition()) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var entities = this.entities, - p = input.charAt(i + 1), negate; - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $char('-'); } - var o = this.sub() || entities.dimension() || - entities.color() || entities.variable() || - entities.call(); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var entities = [], e, delim; - - do { - e = this.addition() || this.entity(); - if (e) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/)) { - delim = $char('/'); - if (delim) { - entities.push(new(tree.Anonymous)(delim)); - } - } - } - } while (e); - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name = $re(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/); - if (name) { - return name[1]; - } - }, - ruleProperty: function () { - var c = current, name = [], index = [], length = 0, s, k; - - function match(re) { - var a = re.exec(c); - if (a) { - index.push(i + length); - length += a[0].length; - c = c.slice(a[1].length); - return name.push(a[1]); - } - } - - match(/^(\*?)/); - while (match(/^((?:[\w-]+)|(?:@\{[\w-]+\}))/)); // ! - if ((name.length > 1) && match(/^\s*((?:\+_|\+)?)\s*:/)) { - // at last, we have the complete match now. move forward, - // convert name particles to tree objects and return: - skipWhitespace(length); - if (name[0] === '') { - name.shift(); - index.shift(); - } - for (k = 0; k < name.length; k++) { - s = name[k]; - name[k] = (s.charAt(0) !== '@') - ? new(tree.Keyword)(s) - : new(tree.Variable)('@' + s.slice(2, -1), - index[k], env.currentFileInfo); - } - return name; - } - } - } - }; - return parser; -}; -less.Parser.serializeVars = function(vars) { - var s = ''; - - for (var name in vars) { - if (Object.hasOwnProperty.call(vars, name)) { - var value = vars[name]; - s += ((name[0] === '@') ? '' : '@') + name +': '+ value + - ((('' + value).slice(-1) === ';') ? '' : ';'); - } - } - - return s; -}; - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 255); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; } - else if (h * 2 < 1) { return m2; } - else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; } - else { return m1; } - } - - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().h)); - }, - saturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(Math.round(color.toHSV().h)); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().s * 100), '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(Math.round(color.toHSV().v * 100), '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(Math.round(color.luma() * color.alpha * 100), '%'); - }, - luminance: function (color) { - var luminance = - (0.2126 * color.rgb[0] / 255) - + (0.7152 * color.rgb[1] / 255) - + (0.0722 * color.rgb[2] / 255); - - return new(tree.Dimension)(Math.round(luminance * color.alpha * 100), '%'); - }, - saturate: function (color, amount) { - // filter: saturate(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if (color.luma() < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str.value); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - replace: function (string, pattern, replacement, flags) { - var result = string.value; - - result = result.replace(new RegExp(pattern.value, flags ? flags.value : ''), replacement.value); - return new(tree.Quoted)(string.quote || '', result, string.escaped); - }, - '%': function (string /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - result = string.value; - - for (var i = 0; i < args.length; i++) { - /*jshint loopfunc:true */ - result = result.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - result = result.replace(/%%/g, '%'); - return new(tree.Quoted)(string.quote || '', result, string.escaped); - }, - unit: function (val, unit) { - if(!(val instanceof tree.Dimension)) { - throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") }; - } - if (unit) { - if (unit instanceof tree.Keyword) { - unit = unit.value; - } else { - unit = unit.toCSS(); - } - } else { - unit = ""; - } - return new(tree.Dimension)(val.value, unit); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return _math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _minmax: function (isMin, args) { - args = Array.prototype.slice.call(args); - switch(args.length) { - case 0: throw { type: "Argument", message: "one or more arguments required" }; - } - var i, j, current, currentUnified, referenceUnified, unit, unitStatic, unitClone, - order = [], // elems only contains original argument values. - values = {}; // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - for (i = 0; i < args.length; i++) { - current = args[i]; - if (!(current instanceof tree.Dimension)) { - if(Array.isArray(args[i].value)) { - Array.prototype.push.apply(args, Array.prototype.slice.call(args[i].value)); - } - continue; - } - currentUnified = current.unit.toString() === "" && unitClone !== undefined ? new(tree.Dimension)(current.value, unitClone).unify() : current.unify(); - unit = currentUnified.unit.toString() === "" && unitStatic !== undefined ? unitStatic : currentUnified.unit.toString(); - unitStatic = unit !== "" && unitStatic === undefined || unit !== "" && order[0].unify().unit.toString() === "" ? unit : unitStatic; - unitClone = unit !== "" && unitClone === undefined ? current.unit.toString() : unitClone; - j = values[""] !== undefined && unit !== "" && unit === unitStatic ? values[""] : values[unit]; - if (j === undefined) { - if(unitStatic !== undefined && unit !== unitStatic) { - throw{ type: "Argument", message: "incompatible types" }; - } - values[unit] = order.length; - order.push(current); - continue; - } - referenceUnified = order[j].unit.toString() === "" && unitClone !== undefined ? new(tree.Dimension)(order[j].value, unitClone).unify() : order[j].unify(); - if ( isMin && currentUnified.value < referenceUnified.value || - !isMin && currentUnified.value > referenceUnified.value) { - order[j] = current; - } - } - if (order.length == 1) { - return order[0]; - } - args = order.map(function (a) { return a.toCSS(this.env); }).join(this.env.compress ? "," : ", "); - return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")"); - }, - min: function () { - return this._minmax(true, arguments); - }, - max: function () { - return this._minmax(false, arguments); - }, - "get-unit": function (n) { - return new(tree.Anonymous)(n.unit); - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - var colorCandidate = n.value, - returnColor; - returnColor = tree.Color.fromKeyword(colorCandidate); - if (returnColor) { - return returnColor; - } - if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) { - return new(tree.Color)(colorCandidate.slice(1)); - } - throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" }; - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - return Array.isArray(values.value) - ? values.value[index] : Array(values)[index]; - }, - length: function(values) { - var n = Array.isArray(values.value) ? values.value.length : 1; - return new tree.Dimension(n); - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require('./fs'), - path = require('path'), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) { mimetype += ';base64'; } - } - else { - useBase64 = /;base64$/.test(mimetype); - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "\"data:" + mimetype + ',' + buf + "\""; - return new(tree.URL)(new(tree.Anonymous)(uri)); - }, - - "svg-gradient": function(direction) { - - function throwArgumentDescriptor() { - throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" }; - } - - if (arguments.length < 3) { - throwArgumentDescriptor(); - } - var stops = Array.prototype.slice.call(arguments, 1), - gradientDirectionSvg, - gradientType = "linear", - rectangleDimension = 'x="0" y="0" width="1" height="1"', - useBase64 = true, - renderEnv = {compress: false}, - returner, - directionValue = direction.toCSS(renderEnv), - i, color, position, positionValue, alpha; - - switch (directionValue) { - case "to bottom": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - gradientType = "radial"; - gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" }; - } - returner = '' + - '' + - '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>'; - - for (i = 0; i < stops.length; i+= 1) { - if (stops[i].value) { - color = stops[i].value[0]; - position = stops[i].value[1]; - } else { - color = stops[i]; - position = undefined; - } - - if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) { - throwArgumentDescriptor(); - } - positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%"; - alpha = color.alpha; - returner += ''; - } - returner += '' + - ''; - - if (useBase64) { - try { - returner = require('./encoder').encodeBase64(returner); // TODO browser implementation - } catch(e) { - useBase64 = false; - } - } - - returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'"; - return new(tree.URL)(new(tree.Anonymous)(returner)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -// Math - -var mathFunctions = { - // name, unit - ceil: null, - floor: null, - sqrt: null, - abs: null, - tan: "", - sin: "", - cos: "", - atan: "rad", - asin: "rad", - acos: "rad" -}; - -function _math(fn, unit, n) { - if (!(n instanceof tree.Dimension)) { - throw { type: "Argument", message: "argument must be a number" }; - } - if (unit == null) { - unit = n.unit; - } else { - n = n.unify(); - } - return new(tree.Dimension)(fn(parseFloat(n.value)), unit); -} - -// ~ End of Math - -// Color Blending -// ref: http://www.w3.org/TR/compositing-1 - -function colorBlend(mode, color1, color2) { - var ab = color1.alpha, cb, // backdrop - as = color2.alpha, cs, // source - ar, cr, r = []; // result - - ar = as + ab * (1 - as); - for (var i = 0; i < 3; i++) { - cb = color1.rgb[i] / 255; - cs = color2.rgb[i] / 255; - cr = mode(cb, cs); - if (ar) { - cr = (as * cs + ab * (cb - - as * (cb + cs - cr))) / ar; - } - r[i] = cr * 255; - } - - return new(tree.Color)(r, ar); -} - -var colorBlendMode = { - multiply: function(cb, cs) { - return cb * cs; - }, - screen: function(cb, cs) { - return cb + cs - cb * cs; - }, - overlay: function(cb, cs) { - cb *= 2; - return (cb <= 1) - ? colorBlendMode.multiply(cb, cs) - : colorBlendMode.screen(cb - 1, cs); - }, - softlight: function(cb, cs) { - var d = 1, e = cb; - if (cs > 0.5) { - e = 1; - d = (cb > 0.25) ? Math.sqrt(cb) - : ((16 * cb - 12) * cb + 4) * cb; - } - return cb - (1 - 2 * cs) * e * (d - cb); - }, - hardlight: function(cb, cs) { - return colorBlendMode.overlay(cs, cb); - }, - difference: function(cb, cs) { - return Math.abs(cb - cs); - }, - exclusion: function(cb, cs) { - return cb + cs - 2 * cb * cs; - }, - - // non-w3c functions: - average: function(cb, cs) { - return (cb + cs) / 2; - }, - negation: function(cb, cs) { - return 1 - Math.abs(cb + cs - 1); - } -}; - -// ~ End of Color Blending - -tree.defaultFunc = { - eval: function () { - var v = this.value_, e = this.error_; - if (e) { - throw e; - } - if (v != null) { - return v ? tree.True : tree.False; - } - }, - value: function (v) { - this.value_ = v; - }, - error: function (e) { - this.error_ = e; - }, - reset: function () { - this.value_ = this.error_ = null; - } -}; - -function initFunctions() { - var f, tf = tree.functions; - - // math - for (f in mathFunctions) { - if (mathFunctions.hasOwnProperty(f)) { - tf[f] = _math.bind(null, Math[f], mathFunctions[f]); - } - } - - // color blending - for (f in colorBlendMode) { - if (colorBlendMode.hasOwnProperty(f)) { - tf[f] = colorBlend.bind(null, colorBlendMode[f]); - } - } - - // default - f = tree.defaultFunc; - tf["default"] = f.eval.bind(f); - -} initFunctions(); - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.fround = function(env, value) { - var p = env && env.numPrecision; - //add "epsilon" to ensure numbers like 1.000000005 (represented as 1.000000004999....) are properly rounded... - return (p == null) ? value : Number((value + 2e-16).toFixed(p)); -}; - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); - -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); - -(function (tree) { - -tree.debugInfo = function(env, ctx, lineSeperator) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:\/\\])/g, function (a) { - if (a == '\\') { - a = '\/'; - } - return '\\' + a; - }) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - r = fun.call(obj, obj[i]); - if (r) { return r; } - } - return null; -}; - -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(); }).join(', ') + ']'; - } else { - return obj.toCSS(); - } -}; - -tree.toCSS = function (env) { - var strs = []; - this.genCSS(env, { - add: function(chunk, fileInfo, index) { - strs.push(chunk); - }, - isEmpty: function () { - return strs.length === 0; - } - }); - return strs.join(''); -}; - -tree.outputRuleset = function (env, output, rules) { - var ruleCnt = rules.length, i; - env.tabLevel = (env.tabLevel | 0) + 1; - - // Compressed - if (env.compress) { - output.add('{'); - for (i = 0; i < ruleCnt; i++) { - rules[i].genCSS(env, output); - } - output.add('}'); - env.tabLevel--; - return; - } - - // Non-compressed - var tabSetStr = '\n' + Array(env.tabLevel).join(" "), tabRuleStr = tabSetStr + " "; - if (!ruleCnt) { - output.add(" {" + tabSetStr + '}'); - } else { - output.add(" {" + tabRuleStr); - rules[0].genCSS(env, output); - for (i = 1; i < ruleCnt; i++) { - output.add(tabRuleStr); - rules[i].genCSS(env, output); - } - output.add(tabSetStr + '}'); - } - - env.tabLevel--; -}; - -})(require('./tree')); - -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } - return this; - }, - genCSS: function (env, output) { - output.add("alpha(opacity="); - - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - - output.add(")"); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Anonymous = function (value, index, currentFileInfo, mapLines) { - this.value = value; - this.index = index; - this.mapLines = mapLines; - this.currentFileInfo = currentFileInfo; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - eval: function () { - return new tree.Anonymous(this.value, this.index, this.currentFileInfo, this.mapLines); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - }, - genCSS: function (env, output) { - output.add(this.value, this.currentFileInfo, this.index, this.mapLines); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - }, - genCSS: function (env, output) { - output.add(this.key + '='); - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - if (this.args) { - this.args = visitor.visitArray(this.args); - } - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - return new tree.Call(this.name, args, this.index, this.currentFileInfo); - }, - - genCSS: function (env, output) { - output.add(this.name + "(", this.currentFileInfo, this.index); - - for(var i = 0; i < this.args.length; i++) { - this.args[i].genCSS(env, output); - if (i + 1 < this.args.length) { - output.add(", "); - } - } - - output.add(")"); - }, - - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; - -var transparentKeyword = "transparent"; - -tree.Color.prototype = { - type: "Color", - eval: function () { return this; }, - luma: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255; - - r = (r <= 0.03928) ? r / 12.92 : Math.pow(((r + 0.055) / 1.055), 2.4); - g = (g <= 0.03928) ? g / 12.92 : Math.pow(((g + 0.055) / 1.055), 2.4); - b = (b <= 0.03928) ? b / 12.92 : Math.pow(((b + 0.055) / 1.055), 2.4); - - return 0.2126 * r + 0.7152 * g + 0.0722 * b; - }, - - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress, - alpha = tree.fround(env, this.alpha); - - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - if (alpha < 1) { - if (alpha === 0 && this.isTransparentKeyword) { - return transparentKeyword; - } - return "rgba(" + this.rgb.map(function (c) { - return clamp(Math.round(c), 255); - }).concat(clamp(alpha, 1)) - .join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.toRGB(); - - if (compress) { - var splitcolor = color.split(''); - - // Convert color to short format - if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) { - color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5]; - } - } - - return color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var rgb = []; - var alpha = this.alpha * (1 - other.alpha) + other.alpha; - for (var c = 0; c < 3; c++) { - rgb[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(rgb, alpha); - }, - - toRGB: function () { - return toHex(this.rgb); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - return toHex([this.alpha * 255].concat(this.rgb)); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - -tree.Color.fromKeyword = function(keyword) { - keyword = keyword.toLowerCase(); - - if (tree.colors.hasOwnProperty(keyword)) { - // detect named color - return new(tree.Color)(tree.colors[keyword].slice(1)); - } - if (keyword === transparentKeyword) { - var transparent = new(tree.Color)([0, 0, 0], 0); - transparent.isTransparentKeyword = true; - return transparent; - } -}; - -function toHex(v) { - return '#' + v.map(function (c) { - c = clamp(Math.round(c), 255); - return (c < 16 ? '0' : '') + c.toString(16); - }).join(''); -} - -function clamp(v, max) { - return Math.min(Math.max(v, 0), max); -} - -})(require('../tree')); - -(function (tree) { - -tree.Comment = function (value, silent, index, currentFileInfo) { - this.value = value; - this.silent = !!silent; - this.currentFileInfo = currentFileInfo; -}; -tree.Comment.prototype = { - type: "Comment", - genCSS: function (env, output) { - if (this.debugInfo) { - output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index); - } - output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n - }, - toCSS: tree.toCSS, - isSilent: function(env) { - var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced), - isCompressed = env.compress && !this.value.match(/^\/\*!/); - return this.silent || isReference || isCompressed; - }, - eval: function () { return this; }, - markReferenced: function () { - this.isReferenced = true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<' || op === '<='; - case 0: return op === '=' || op === '>=' || op === '=<' || op === '<='; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.DetachedRuleset = function (ruleset, frames) { - this.ruleset = ruleset; - this.frames = frames; -}; -tree.DetachedRuleset.prototype = { - type: "DetachedRuleset", - accept: function (visitor) { - this.ruleset = visitor.visit(this.ruleset); - }, - eval: function (env) { - var frames = this.frames || env.frames.slice(0); - return new tree.DetachedRuleset(this.ruleset, frames); - }, - callEval: function (env) { - return this.ruleset.eval(this.frames ? new(tree.evalEnv)(env, this.frames.concat(env.frames)) : env); - } -}; -})(require('../tree')); - -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - genCSS: function (env, output) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = tree.fround(env, this.value), - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && this.unit.isLength()) { - output.add(strValue); - return; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - output.add(strValue); - this.unit.genCSS(env, output); - }, - toCSS: tree.toCSS, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - /*jshint noempty:false */ - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a, b, - aValue, bValue; - - if (this.unit.isEmpty() || other.unit.isEmpty()) { - a = this; - b = other; - } else { - a = this.unify(); - b = other.unify(); - if (a.unit.compare(b.unit) !== 0) { - return -1; - } - } - aValue = a.value; - bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'px', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, targetUnit, derivedConversions = {}, applyUnit; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - applyUnit = function (atomicUnit, denominator) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(applyUnit); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'px': 0.0254 / 96, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - genCSS: function (env, output) { - if (this.numerator.length >= 1) { - output.add(this.numerator[0]); - } else - if (this.denominator.length >= 1) { - output.add(this.denominator[0]); - } else - if ((!env || !env.strictUnits) && this.backupUnit) { - output.add(this.backupUnit); - } - }, - toCSS: tree.toCSS, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isLength: function () { - return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/)); - }, - - isEmpty: function () { - return this.numerator.length === 0 && this.denominator.length === 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length === 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, result = {}, mapUnit; - - mapUnit = function (atomicUnit) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }; - - for (var groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(mapUnit); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Directive = function (name, value, rules, index, currentFileInfo, debugInfo) { - this.name = name; - this.value = value; - if (rules) { - this.rules = rules; - this.rules.allowImports = true; - } - this.index = index; - this.currentFileInfo = currentFileInfo; - this.debugInfo = debugInfo; -}; - -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - var value = this.value, rules = this.rules; - if (rules) { - rules = visitor.visit(rules); - } - if (value) { - value = visitor.visit(value); - } - }, - genCSS: function (env, output) { - var value = this.value, rules = this.rules; - output.add(this.name, this.currentFileInfo, this.index); - if (value) { - output.add(' '); - value.genCSS(env, output); - } - if (rules) { - tree.outputRuleset(env, output, [rules]); - } else { - output.add(';'); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var value = this.value, rules = this.rules; - if (value) { - value = value.eval(env); - } - if (rules) { - rules = rules.eval(env); - rules.root = true; - } - return new(tree.Directive)(this.name, value, rules, - this.index, this.currentFileInfo, this.debugInfo); - }, - variable: function (name) { if (this.rules) return tree.Ruleset.prototype.variable.call(this.rules, name); }, - find: function () { if (this.rules) return tree.Ruleset.prototype.find.apply(this.rules, arguments); }, - rulesets: function () { if (this.rules) return tree.Ruleset.prototype.rulesets.apply(this.rules); }, - markReferenced: function () { - var i, rules; - this.isReferenced = true; - if (this.rules) { - rules = this.rules.rules; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Element = function (combinator, value, index, currentFileInfo) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - var value = this.value; - this.combinator = visitor.visit(this.combinator); - if (typeof value === "object") { - this.value = visitor.visit(value); - } - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index, - this.currentFileInfo); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env), this.currentFileInfo, this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value === '' && this.combinator.value.charAt(0) === '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - _outputMap: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : ' + ', - '~' : ' ~ ', - '>' : ' > ', - '|' : '|', - '^' : ' ^ ', - '^^' : ' ^^ ' - }, - _outputMapCompressed: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : '+', - '~' : '~', - '>' : '>', - '|' : '|', - '^' : '^', - '^^' : '^^' - }, - genCSS: function (env, output) { - output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - genCSS: function (env, output) { - for(var i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i + 1 < this.value.length) { - output.add(" "); - } - } - }, - toCSS: tree.toCSS, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - this.object_id = tree.Extend.next_id++; - this.parent_ids = [this.object_id]; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; -tree.Extend.next_id = 0; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i, - selectorElements; - - for(i = 0; i < selectors.length; i++) { - selectorElements = selectors[i].elements; - // duplicate the logic in genCSS function inside the selector node. - // future TODO - move both logics into the selector joiner visitor - if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") { - selectorElements[0].combinator.value = ' '; - } - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); - -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined || this.options.inline) { - this.css = !this.options.less || this.options.inline; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - this.path = visitor.visit(this.path); - if (!this.options.inline && this.root) { - this.root = visitor.visit(this.root); - } - }, - genCSS: function (env, output) { - if (this.css) { - output.add("@import ", this.currentFileInfo, this.index); - this.path.genCSS(env, output); - if (this.features) { - output.add(" "); - this.features.genCSS(env, output); - } - output.add(';'); - } - }, - toCSS: tree.toCSS, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - - if (!(path instanceof tree.URL)) { - if (rootpath) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath +pathValue; - } - } - path.value = env.normalizePath(path.value); - } - - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { - if (typeof this.skip === "function") { - this.skip = this.skip(); - } - if (this.skip) { - return []; - } - } - - if (this.options.inline) { - //todo needs to reference css file not import - var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true); - return this.features ? new(tree.Media)([contents], this.features.value) : [contents]; - } else if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" , - index: this.index }; - } - - var variables = env.frames[0].variables(); - for (var k in variables) { - if (variables.hasOwnProperty(k)) { - /*jshint loopfunc:true */ - context[k.slice(1)] = { - value: variables[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message.replace(/["]/g, "'") + "'" , - index: this.index }; - } - if (typeof(result) === 'number') { - return new(tree.Dimension)(result); - } else if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Keyword = function (value) { this.value = value; }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - genCSS: function (env, output) { - if (this.value === '%') { throw { type: "Syntax", message: "Invalid % without number" }; } - output.add(this.value); - }, - toCSS: tree.toCSS, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); - -(function (tree) { - -tree.Media = function (value, features, index, currentFileInfo) { - this.index = index; - this.currentFileInfo = currentFileInfo; - - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.rules = [new(tree.Ruleset)(selectors, value)]; - this.rules[0].allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - }, - genCSS: function (env, output) { - output.add('@media ', this.currentFileInfo, this.index); - this.features.genCSS(env, output); - tree.outputRuleset(env, output, this.rules); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)(null, [], this.index, this.currentFileInfo); - if(this.debugInfo) { - this.rules[0].debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.rules[0]); - media.rules = [this.rules[0].eval(env)]; - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env); - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', this.index, this.currentFileInfo), - sels = [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)]; - sels[0].mediaEmpty = true; - return sels; - }, - markReferenced: function () { - var i, rules = this.rules[0].rules; - this.rules[0].markReferenced(); - this.isReferenced = true; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - if (!selectors) - return; - this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])]; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = (args && args.length) ? args : null; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - if (this.selector) { - this.selector = visitor.visit(this.selector); - } - if (this.arguments) { - this.arguments = visitor.visitArray(this.arguments); - } - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule, - candidates = [], candidate, conditionResult = [], defaultFunc = tree.defaultFunc, - defaultResult, defNone = 0, defTrue = 1, defFalse = 2, count, originalRuleset; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - - // To make `default()` function independent of definition order we have two "subpasses" here. - // At first we evaluate each guard *twice* (with `default() == true` and `default() == false`), - // and build candidate list with corresponding flags. Then, when we know all possible matches, - // we make a final decision. - - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - - if (mixin.matchArgs(args, env)) { - candidate = {mixin: mixin, group: defNone}; - - if (mixin.matchCondition) { - for (f = 0; f < 2; f++) { - defaultFunc.value(f); - conditionResult[f] = mixin.matchCondition(args, env); - } - if (conditionResult[0] || conditionResult[1]) { - if (conditionResult[0] != conditionResult[1]) { - candidate.group = conditionResult[1] ? - defTrue : defFalse; - } - - candidates.push(candidate); - } - } - else { - candidates.push(candidate); - } - - match = true; - } - } - - defaultFunc.reset(); - - count = [0, 0, 0]; - for (m = 0; m < candidates.length; m++) { - count[candidates[m].group]++; - } - - if (count[defNone] > 0) { - defaultResult = defFalse; - } else { - defaultResult = defTrue; - if ((count[defTrue] + count[defFalse]) > 1) { - throw { type: 'Runtime', - message: 'Ambiguous use of `default()` found when matching for `' - + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - for (m = 0; m < candidates.length; m++) { - candidate = candidates[m].group; - if ((candidate === defNone) || (candidate === defaultResult)) { - try { - mixin = candidates[m].mixin; - if (!(mixin instanceof tree.mixin.Definition)) { - originalRuleset = mixin.originalRuleset || mixin; - mixin = new tree.mixin.Definition("", [], mixin.rules, null, false); - mixin.originalRuleset = originalRuleset; - } - Array.prototype.push.apply( - rules, mixin.evalCall(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - } - - if (match) { - if (!this.currentFileInfo || !this.currentFileInfo.reference) { - for (i = 0; i < rules.length; i++) { - rule = rules[i]; - if (rule.markReferenced) { - rule.markReferenced(); - } - } - } - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - }, - format: function (args) { - return this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")"; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic, frames) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1; } - else { return count; } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = frames; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - if (this.params && this.params.length) { - this.params = visitor.visitArray(this.params); - } - this.rules = visitor.visitArray(this.rules); - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - /*jshint boss:true */ - var frame = new(tree.Ruleset)(null, null), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex, argsLength = 0; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - argsLength = args.length; - - for(i = 0; i < argsLength; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.prependRule(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) { continue; } - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic) { - varargs = []; - for (j = argIndex; j < argsLength; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.prependRule(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + argsLength + ' for ' + this.arity + ')' }; - } - - frame.prependRule(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < argsLength; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env) { - return new tree.mixin.Definition(this.name, this.params, this.rules, this.condition, this.variadic, this.frames || env.frames.slice(0)); - }, - evalCall: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames ? this.frames.concat(env.frames) : env.frames, - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - rules, ruleset; - - frame.prependRule(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules); - ruleset.originalRuleset = this; - ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames))); - if (important) { - ruleset = this.parent.makeImportant.apply(ruleset); - } - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames ? this.frames.concat(env.frames) : env.frames), args, [])] // the parameter variables - .concat(this.frames) // the parent namespace/mixin frames - .concat(env.frames)))) { // the current environment frames - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (! this.variadic) { - if (argsLength < this.required) { return false; } - if (argsLength > this.params.length) { return false; } - } else { - if (argsLength < (this.required - 1)) { return false; } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('-'); - this.value.genCSS(env, output); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env); - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - a = a.toColor(); - } - if (b instanceof tree.Dimension && a instanceof tree.Color) { - b = b.toColor(); - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - genCSS: function (env, output) { - this.operands[0].genCSS(env, output); - if (this.isSpaced) { - output.add(" "); - } - output.add(this.op); - if (this.isSpaced) { - output.add(" "); - } - this.operands[1].genCSS(env, output); - }, - toCSS: tree.toCSS -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('('); - this.value.genCSS(env, output); - output.add(')'); - }, - toCSS: tree.toCSS, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - genCSS: function (env, output) { - if (!this.escaped) { - output.add(this.quote, this.currentFileInfo, this.index); - } - output.add(this.value); - if (!this.escaped) { - output.add(this.quote); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left, right; - - // when comparing quoted strings allow the quote to differ - if (x.type === "Quoted" && !this.escaped && !x.escaped) { - left = x.value; - right = this.value; - } else { - left = this.toCSS(); - right = x.toCSS(); - } - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value || value instanceof tree.Ruleset) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.merge = merge; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - this.variable = name.charAt && (name.charAt(0) === '@'); -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index); - try { - this.value.genCSS(env, output); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index); - }, - toCSS: tree.toCSS, - eval: function (env) { - var strictMathBypass = false, name = this.name, evaldValue; - if (typeof name !== "string") { - // expand 'primitive' name directly to get - // things faster (~10% for benchmark.less): - name = (name.length === 1) - && (name[0] instanceof tree.Keyword) - ? name[0].value : evalName(env, name); - } - if (name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - evaldValue = this.value.eval(env); - - if (!this.variable && evaldValue.type === "DetachedRuleset") { - throw { message: "Rulesets cannot be evaluated on a property.", - index: this.index, filename: this.currentFileInfo.filename }; - } - - return new(tree.Rule)(name, - evaldValue, - this.important, - this.merge, - this.index, this.currentFileInfo, this.inline); - } - catch(e) { - if (typeof e.index !== 'number') { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - } - throw e; - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.merge, - this.index, this.currentFileInfo, this.inline); - } -}; - -function evalName(env, name) { - var value = "", i, n = name.length, - output = {add: function (s) {value += s;}}; - for (i = 0; i < n; i++) { - name[i].eval(env).genCSS(env, output); - } - return value; -} - -})(require('../tree')); - -(function (tree) { - -tree.RulesetCall = function (variable) { - this.variable = variable; -}; -tree.RulesetCall.prototype = { - type: "RulesetCall", - accept: function (visitor) { - }, - eval: function (env) { - var detachedRuleset = new(tree.Variable)(this.variable).eval(env); - return detachedRuleset.callEval(env); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - if (this.paths) { - visitor.visitArray(this.paths, true); - } else if (this.selectors) { - this.selectors = visitor.visitArray(this.selectors); - } - if (this.rules && this.rules.length) { - this.rules = visitor.visitArray(this.rules); - } - }, - eval: function (env) { - var thisSelectors = this.selectors, selectors, - selCnt, selector, i, defaultFunc = tree.defaultFunc, hasOnePassingSelector = false; - - if (thisSelectors && (selCnt = thisSelectors.length)) { - selectors = []; - defaultFunc.error({ - type: "Syntax", - message: "it is currently only allowed in parametric mixin guards," - }); - for (i = 0; i < selCnt; i++) { - selector = thisSelectors[i].eval(env); - selectors.push(selector); - if (selector.evaldCondition) { - hasOnePassingSelector = true; - } - } - defaultFunc.reset(); - } else { - hasOnePassingSelector = true; - } - - var rules = this.rules ? this.rules.slice(0) : null, - ruleset = new(tree.Ruleset)(selectors, rules, this.strictImports), - rule, subRule; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - if (!hasOnePassingSelector) { - rules.length = 0; - } - - // push the current ruleset to the frames stack - var envFrames = env.frames; - envFrames.unshift(ruleset); - - // currrent selectors - var envSelectors = env.selectors; - if (!envSelectors) { - env.selectors = envSelectors = []; - } - envSelectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - var rsRules = ruleset.rules, rsRuleCnt = rsRules ? rsRules.length : 0; - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Definition || rsRules[i] instanceof tree.DetachedRuleset) { - rsRules[i] = rsRules[i].eval(env); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Call) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } else if (rsRules[i] instanceof tree.RulesetCall) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).rules.filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope at all - return false; - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (i = 0; i < rsRules.length; i++) { - rule = rsRules[i]; - if (! (rule instanceof tree.mixin.Definition || rule instanceof tree.DetachedRuleset)) { - rsRules[i] = rule = rule.eval ? rule.eval(env) : rule; - } - } - - // Evaluate everything else - for (i = 0; i < rsRules.length; i++) { - rule = rsRules[i]; - // for rulesets, check if it is a css guard and can be removed - if (rule instanceof tree.Ruleset && rule.selectors && rule.selectors.length === 1) { - // check if it can be folded in (e.g. & where) - if (rule.selectors[0].isJustParentSelector()) { - rsRules.splice(i--, 1); - - for(var j = 0; j < rule.rules.length; j++) { - subRule = rule.rules[j]; - if (!(subRule instanceof tree.Rule) || !subRule.variable) { - rsRules.splice(++i, 0, subRule); - } - } - } - } - } - - // Pop the stack - envFrames.shift(); - envSelectors.shift(); - - if (env.mediaBlocks) { - for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var rules = this.rules, i, importRules; - if (!rules) { return; } - - for (i = 0; i < rules.length; i++) { - if (rules[i] instanceof tree.Import) { - importRules = rules[i].eval(env); - if (importRules && importRules.length) { - rules.splice.apply(rules, [i, 1].concat(importRules)); - i+= importRules.length-1; - } else { - rules.splice(i, 1, importRules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - // lets you call a css selector with a guard - matchCondition: function (args, env) { - var lastSelector = this.selectors[this.selectors.length-1]; - if (!lastSelector.evaldCondition) { - return false; - } - if (lastSelector.condition && - !lastSelector.condition.eval( - new(tree.evalEnv)(env, - env.frames))) { - return false; - } - return true; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (!this._variables) { - this._variables = !this.rules ? {} : this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - return this._variables; - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (!this.rules) { return null; } - - var _Ruleset = tree.Ruleset, _MixinDefinition = tree.mixin.Definition, - filtRules = [], rules = this.rules, cnt = rules.length, - i, rule; - - for (i = 0; i < cnt; i++) { - rule = rules[i]; - if ((rule instanceof _Ruleset) || (rule instanceof _MixinDefinition)) { - filtRules.push(rule); - } - } - - return filtRules; - }, - prependRule: function (rule) { - var rules = this.rules; - if (rules) { rules.unshift(rule); } else { this.rules = [ rule ]; } - }, - find: function (selector, self) { - self = self || this; - var rules = [], match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key]; } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - match = selector.match(rule.selectors[j]); - if (match) { - if (selector.elements.length > match) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(match)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - this._lookups[key] = rules; - return rules; - }, - genCSS: function (env, output) { - var i, j, - ruleNodes = [], - rulesetNodes = [], - rulesetNodeCnt, - debugInfo, // Line number debugging - rule, - path; - - env.tabLevel = (env.tabLevel || 0); - - if (!this.root) { - env.tabLevel++; - } - - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "), - sep; - - for (i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - if (rule.rules || (rule instanceof tree.Media) || rule instanceof tree.Directive || (this.root && rule instanceof tree.Comment)) { - rulesetNodes.push(rule); - } else { - ruleNodes.push(rule); - } - } - - // If this is the root node, we don't render - // a selector, or {}. - if (!this.root) { - debugInfo = tree.debugInfo(env, this, tabSetStr); - - if (debugInfo) { - output.add(debugInfo); - output.add(tabSetStr); - } - - var paths = this.paths, pathCnt = paths.length, - pathSubCnt; - - sep = env.compress ? ',' : (',\n' + tabSetStr); - - for (i = 0; i < pathCnt; i++) { - path = paths[i]; - if (!(pathSubCnt = path.length)) { continue; } - if (i > 0) { output.add(sep); } - - env.firstSelector = true; - path[0].genCSS(env, output); - - env.firstSelector = false; - for (j = 1; j < pathSubCnt; j++) { - path[j].genCSS(env, output); - } - } - - output.add((env.compress ? '{' : ' {\n') + tabRuleStr); - } - - // Compile rules and rulesets - for (i = 0; i < ruleNodes.length; i++) { - rule = ruleNodes[i]; - - // @page{ directive ends up with root elements inside it, a mix of rules and rulesets - // In this instance we do not know whether it is the last property - if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) { - env.lastRule = true; - } - - if (rule.genCSS) { - rule.genCSS(env, output); - } else if (rule.value) { - output.add(rule.value.toString()); - } - - if (!env.lastRule) { - output.add(env.compress ? '' : ('\n' + tabRuleStr)); - } else { - env.lastRule = false; - } - } - - if (!this.root) { - output.add((env.compress ? '}' : '\n' + tabSetStr + '}')); - env.tabLevel--; - } - - sep = (env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr); - rulesetNodeCnt = rulesetNodes.length; - if (rulesetNodeCnt) { - if (ruleNodes.length && sep) { output.add(sep); } - rulesetNodes[0].genCSS(env, output); - for (i = 1; i < rulesetNodeCnt; i++) { - if (sep) { output.add(sep); } - rulesetNodes[i].genCSS(env, output); - } - } - - if (!output.isEmpty() && !env.compress && this.firstRoot) { - output.add('\n'); - } - }, - - toCSS: tree.toCSS, - - markReferenced: function () { - if (!this.selectors) { - return; - } - for (var s = 0; s < this.selectors.length; s++) { - this.selectors[s].markReferenced(); - } - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for (i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for (j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length === 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', el.index, el.currentFileInfo)); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for (k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = selector.createDerived([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for (i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length === 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for (i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); - -(function (tree) { - -tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) { - this.elements = elements; - this.extendList = extendList; - this.condition = condition; - this.currentFileInfo = currentFileInfo || {}; - this.isReferenced = isReferenced; - if (!condition) { - this.evaldCondition = true; - } -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - if (this.elements) { - this.elements = visitor.visitArray(this.elements); - } - if (this.extendList) { - this.extendList = visitor.visitArray(this.extendList); - } - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - createDerived: function(elements, extendList, evaldCondition) { - evaldCondition = (evaldCondition != null) ? evaldCondition : this.evaldCondition; - var newSelector = new(tree.Selector)(elements, extendList || this.extendList, null, this.index, this.currentFileInfo, this.isReferenced); - newSelector.evaldCondition = evaldCondition; - newSelector.mediaEmpty = this.mediaEmpty; - return newSelector; - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - olen, i; - - other.CacheElements(); - - olen = other._elements.length; - if (olen === 0 || len < olen) { - return 0; - } else { - for (i = 0; i < olen; i++) { - if (elements[i].value !== other._elements[i]) { - return 0; - } - } - } - - return olen; // return number of matched elements - }, - CacheElements: function(){ - var css = '', len, v, i; - - if( !this._elements ){ - - len = this.elements.length; - for(i = 0; i < len; i++){ - - v = this.elements[i]; - css += v.combinator.value; - - if( !v.value.value ){ - css += v.value; - continue; - } - - if( typeof v.value.value !== "string" ){ - css = ''; - break; - } - css += v.value.value; - } - - this._elements = css.match(/[,&#\.\w-]([\w-]|(\\.))*/g); - - if (this._elements) { - if (this._elements[0] === "&") { - this._elements.shift(); - } - - } else { - this._elements = []; - } - - } - }, - isJustParentSelector: function() { - return !this.mediaEmpty && - this.elements.length === 1 && - this.elements[0].value === '&' && - (this.elements[0].combinator.value === ' ' || this.elements[0].combinator.value === ''); - }, - eval: function (env) { - var evaldCondition = this.condition && this.condition.eval(env), - elements = this.elements, extendList = this.extendList; - - elements = elements && elements.map(function (e) { return e.eval(env); }); - extendList = extendList && extendList.map(function(extend) { return extend.eval(env); }); - - return this.createDerived(elements, extendList, evaldCondition); - }, - genCSS: function (env, output) { - var i, element; - if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") { - output.add(' ', this.currentFileInfo, this.index); - } - if (!this._css) { - //TODO caching? speed comparison? - for(i = 0; i < this.elements.length; i++) { - element = this.elements[i]; - element.genCSS(env, output); - } - } - }, - toCSS: tree.toCSS, - markReferenced: function () { - this.isReferenced = true; - }, - getIsReferenced: function() { - return !this.currentFileInfo.reference || this.isReferenced; - }, - getIsOutput: function() { - return this.evaldCondition; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - eval: function () { return this; } -}; - -})(require('../tree')); - -(function (tree) { - -tree.URL = function (val, currentFileInfo, isEvald) { - this.value = val; - this.currentFileInfo = currentFileInfo; - this.isEvald = isEvald; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add("url("); - this.value.genCSS(env, output); - output.add(")"); - }, - toCSS: tree.toCSS, - eval: function (ctx) { - var val = this.value.eval(ctx), - rootpath; - - if (!this.isEvald) { - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - val.value = ctx.normalizePath(val.value); - - // Add url args if enabled - if (ctx.urlArgs) { - if (!val.value.match(/^\s*data:/)) { - var delimiter = val.value.indexOf('?') === -1 ? '?' : '&'; - var urlArgs = delimiter + ctx.urlArgs; - if (val.value.indexOf('#') !== -1) { - val.value = val.value.replace('#', urlArgs + '#'); - } else { - val.value += urlArgs; - } - } - } - } - - return new(tree.URL)(val, this.currentFileInfo, true); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - genCSS: function (env, output) { - var i; - for(i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i+1 < this.value.length) { - output.add((env && env.compress) ? ',' : ', '); - } - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { - this.name = name; - this.index = index; - this.currentFileInfo = currentFileInfo || {}; -}; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, name = this.name; - - if (name.indexOf('@@') === 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - variable = tree.find(env.frames, function (frame) { - var v = frame.variable(name); - if (v) { - return v.value.eval(env); - } - }); - if (variable) { - this.evaluating = false; - return variable; - } else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); - -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // map - filename to contents of all the files - 'contentsIgnoredChars', // map - filename to lines at the begining of each file to ignore - 'relativeUrls', // option - whether to adjust URL's to be relative - 'rootpath', // option - rootpath to append to URL's - 'strictImports', // option - - 'insecure', // option - whether to allow imports from insecure ssl hosts - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true - 'mime', // browser only - mime type for sheet import - 'useFileCache', // browser only - whether to use the per file session cache - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' - absolute path to the entry file - // 'reference' - whether the file should not be output and only output parts that are referenced - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.contentsIgnoredChars) { this.contentsIgnoredChars = {}; } - if (!this.files) { this.files = {}; } - - if (typeof this.paths === "string") { this.paths = [this.paths]; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits', // whether units need to evaluate correctly - 'cleancss', // whether to compress with clean-css - 'sourceMap', // whether to output a source map - 'importMultiple', // whether we are currently importing multiple copies - 'urlArgs' // whether to add args into url tokens - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - tree.evalEnv.prototype.normalizePath = function( path ) { - var - segments = path.split("/").reverse(), - segment; - - path = []; - while (segments.length !== 0 ) { - segment = segments.pop(); - switch( segment ) { - case ".": - break; - case "..": - if ((path.length === 0) || (path[path.length - 1] === "..")) { - path.push( segment ); - } else { - path.pop(); - } - break; - default: - path.push( segment ); - break; - } - } - - return path.join("/"); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - }; - -})(require('./tree')); - -(function (tree) { - - var _visitArgs = { visitDeeper: true }, - _hasIndexed = false; - - function _noop(node) { - return node; - } - - function indexNodeTypes(parent, ticker) { - // add .typeIndex to tree node types for lookup table - var key, child; - for (key in parent) { - if (parent.hasOwnProperty(key)) { - child = parent[key]; - switch (typeof child) { - case "function": - // ignore bound functions directly on tree which do not have a prototype - // or aren't nodes - if (child.prototype && child.prototype.type) { - child.prototype.typeIndex = ticker++; - } - break; - case "object": - ticker = indexNodeTypes(child, ticker); - break; - } - } - } - return ticker; - } - - tree.visitor = function(implementation) { - this._implementation = implementation; - this._visitFnCache = []; - - if (!_hasIndexed) { - indexNodeTypes(tree, 1); - _hasIndexed = true; - } - }; - - tree.visitor.prototype = { - visit: function(node) { - if (!node) { - return node; - } - - var nodeTypeIndex = node.typeIndex; - if (!nodeTypeIndex) { - return node; - } - - var visitFnCache = this._visitFnCache, - impl = this._implementation, - aryIndx = nodeTypeIndex << 1, - outAryIndex = aryIndx | 1, - func = visitFnCache[aryIndx], - funcOut = visitFnCache[outAryIndex], - visitArgs = _visitArgs, - fnName; - - visitArgs.visitDeeper = true; - - if (!func) { - fnName = "visit" + node.type; - func = impl[fnName] || _noop; - funcOut = impl[fnName + "Out"] || _noop; - visitFnCache[aryIndx] = func; - visitFnCache[outAryIndex] = funcOut; - } - - if (func !== _noop) { - var newNode = func.call(impl, node, visitArgs); - if (impl.isReplacing) { - node = newNode; - } - } - - if (visitArgs.visitDeeper && node && node.accept) { - node.accept(this); - } - - if (funcOut != _noop) { - funcOut.call(impl, node); - } - - return node; - }, - visitArray: function(nodes, nonReplacing) { - if (!nodes) { - return nodes; - } - - var cnt = nodes.length, i; - - // Non-replacing - if (nonReplacing || !this._implementation.isReplacing) { - for (i = 0; i < cnt; i++) { - this.visit(nodes[i]); - } - return nodes; - } - - // Replacing - var out = []; - for (i = 0; i < cnt; i++) { - var evald = this.visit(nodes[i]); - if (!evald.splice) { - out.push(evald); - } else if (evald.length) { - this.flatten(evald, out); - } - } - return out; - }, - flatten: function(arr, out) { - if (!out) { - out = []; - } - - var cnt, i, item, - nestedCnt, j, nestedItem; - - for (i = 0, cnt = arr.length; i < cnt; i++) { - item = arr[i]; - if (!item.splice) { - out.push(item); - continue; - } - - for (j = 0, nestedCnt = item.length; j < nestedCnt; j++) { - nestedItem = item[j]; - if (!nestedItem.splice) { - out.push(nestedItem); - } else if (nestedItem.length) { - this.flatten(nestedItem, out); - } - } - } - - return out; - } - }; - -})(require('./tree')); -(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv, onceFileDetectionMap, recursionDetector) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - this.onceFileDetectionMap = onceFileDetectionMap || {}; - this.recursionDetector = {}; - if (recursionDetector) { - for(var fullFilename in recursionDetector) { - if (recursionDetector.hasOwnProperty(fullFilename)) { - this.recursionDetector[fullFilename] = true; - } - } - } - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode, - inlineCSS = importNode.options.inline; - - if (!importNode.css || inlineCSS) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - - if (importNode.options.multiple) { - env.importMultiple = true; - } - - this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, importedAtRoot, fullPath) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - - if (!env.importMultiple) { - if (importedAtRoot) { - importNode.skip = true; - } else { - importNode.skip = function() { - if (fullPath in importVisitor.onceFileDetectionMap) { - return true; - } - importVisitor.onceFileDetectionMap[fullPath] = true; - return false; - }; - } - } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - importNode.importedFilename = fullPath; - var duplicateImport = importedAtRoot || fullPath in importVisitor.recursionDetector; - - if (!inlineCSS && (env.importMultiple || !duplicateImport)) { - importVisitor.recursionDetector[fullPath] = true; - new(tree.importVisitor)(importVisitor._importer, subFinish, env, importVisitor.onceFileDetectionMap, importVisitor.recursionDetector) - .run(root); - return; - } - } - - subFinish(); - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree')); -(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1], - paths = [], selectors; - - this.contexts.push(paths); - - if (! rulesetNode.root) { - selectors = rulesetNode.selectors; - if (selectors) { - selectors = selectors.filter(function(selector) { return selector.getIsOutput(); }); - rulesetNode.selectors = selectors.length ? selectors : (selectors = null); - if (selectors) { rulesetNode.joinSelectors(paths, context, selectors); } - } - if (!selectors) { rulesetNode.rules = null; } - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree')); -(function (tree) { - tree.toCSSVisitor = function(env) { - this._visitor = new tree.visitor(this); - this._env = env; - }; - - tree.toCSSVisitor.prototype = { - isReplacing: true, - run: function (root) { - return this._visitor.visit(root); - }, - - visitRule: function (ruleNode, visitArgs) { - if (ruleNode.variable) { - return []; - } - return ruleNode; - }, - - visitMixinDefinition: function (mixinNode, visitArgs) { - // mixin definitions do not get eval'd - this means they keep state - // so we have to clear that state here so it isn't used if toCSS is called twice - mixinNode.frames = []; - return []; - }, - - visitExtend: function (extendNode, visitArgs) { - return []; - }, - - visitComment: function (commentNode, visitArgs) { - if (commentNode.isSilent(this._env)) { - return []; - } - return commentNode; - }, - - visitMedia: function(mediaNode, visitArgs) { - mediaNode.accept(this._visitor); - visitArgs.visitDeeper = false; - - if (!mediaNode.rules.length) { - return []; - } - return mediaNode; - }, - - visitDirective: function(directiveNode, visitArgs) { - if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) { - return []; - } - if (directiveNode.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (this.charset) { - if (directiveNode.debugInfo) { - var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n"); - comment.debugInfo = directiveNode.debugInfo; - return this._visitor.visit(comment); - } - return []; - } - this.charset = true; - } - return directiveNode; - }, - - checkPropertiesInRoot: function(rules) { - var ruleNode; - for(var i = 0; i < rules.length; i++) { - ruleNode = rules[i]; - if (ruleNode instanceof tree.Rule && !ruleNode.variable) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null}; - } - } - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var rule, rulesets = []; - if (rulesetNode.firstRoot) { - this.checkPropertiesInRoot(rulesetNode.rules); - } - if (! rulesetNode.root) { - if (rulesetNode.paths) { - rulesetNode.paths = rulesetNode.paths - .filter(function(p) { - var i; - if (p[0].elements[0].combinator.value === ' ') { - p[0].elements[0].combinator = new(tree.Combinator)(''); - } - for(i = 0; i < p.length; i++) { - if (p[i].getIsReferenced() && p[i].getIsOutput()) { - return true; - } - } - return false; - }); - } - - // Compile rules and rulesets - var nodeRules = rulesetNode.rules, nodeRuleCnt = nodeRules ? nodeRules.length : 0; - for (var i = 0; i < nodeRuleCnt; ) { - rule = nodeRules[i]; - if (rule && rule.rules) { - // visit because we are moving them out from being a child - rulesets.push(this._visitor.visit(rule)); - nodeRules.splice(i, 1); - nodeRuleCnt--; - continue; - } - i++; - } - // accept the visitor to remove rules and refactor itself - // then we can decide now whether we want it or not - if (nodeRuleCnt > 0) { - rulesetNode.accept(this._visitor); - } else { - rulesetNode.rules = null; - } - visitArgs.visitDeeper = false; - - nodeRules = rulesetNode.rules; - if (nodeRules) { - this._mergeRules(nodeRules); - nodeRules = rulesetNode.rules; - } - if (nodeRules) { - this._removeDuplicateRules(nodeRules); - nodeRules = rulesetNode.rules; - } - - // now decide whether we keep the ruleset - if (nodeRules && nodeRules.length > 0 && rulesetNode.paths.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } else { - rulesetNode.accept(this._visitor); - visitArgs.visitDeeper = false; - if (rulesetNode.firstRoot || (rulesetNode.rules && rulesetNode.rules.length > 0)) { - rulesets.splice(0, 0, rulesetNode); - } - } - if (rulesets.length === 1) { - return rulesets[0]; - } - return rulesets; - }, - - _removeDuplicateRules: function(rules) { - if (!rules) { return; } - - // remove duplicates - var ruleCache = {}, - ruleList, rule, i; - - for(i = rules.length - 1; i >= 0 ; i--) { - rule = rules[i]; - if (rule instanceof tree.Rule) { - if (!ruleCache[rule.name]) { - ruleCache[rule.name] = rule; - } else { - ruleList = ruleCache[rule.name]; - if (ruleList instanceof tree.Rule) { - ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)]; - } - var ruleCSS = rule.toCSS(this._env); - if (ruleList.indexOf(ruleCSS) !== -1) { - rules.splice(i, 1); - } else { - ruleList.push(ruleCSS); - } - } - } - } - }, - - _mergeRules: function (rules) { - if (!rules) { return; } - - var groups = {}, - parts, - rule, - key; - - for (var i = 0; i < rules.length; i++) { - rule = rules[i]; - - if ((rule instanceof tree.Rule) && rule.merge) { - key = [rule.name, - rule.important ? "!" : ""].join(","); - - if (!groups[key]) { - groups[key] = []; - } else { - rules.splice(i--, 1); - } - - groups[key].push(rule); - } - } - - Object.keys(groups).map(function (k) { - - function toExpression(values) { - return new (tree.Expression)(values.map(function (p) { - return p.value; - })); - } - - function toValue(values) { - return new (tree.Value)(values.map(function (p) { - return p; - })); - } - - parts = groups[k]; - - if (parts.length > 1) { - rule = parts[0]; - var spacedGroups = []; - var lastSpacedGroup = []; - parts.map(function (p) { - if (p.merge==="+") { - if (lastSpacedGroup.length > 0) { - spacedGroups.push(toExpression(lastSpacedGroup)); - } - lastSpacedGroup = []; - } - lastSpacedGroup.push(p); - }); - spacedGroups.push(toExpression(lastSpacedGroup)); - rule.value = toValue(spacedGroups); - } - }); - } - }; - -})(require('./tree')); -(function (tree) { - /*jshint loopfunc:true */ - - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - var rules = rulesetNode.rules, ruleCnt = rules ? rules.length : 0; - for(i = 0; i < ruleCnt; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rules[i]); - rulesetNode.extendOnEveryPath = true; - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - var paths = rulesetNode.paths; - for(i = 0; i < paths.length; i++) { - var selectorPath = paths[i], - selector = selectorPath[selectorPath.length - 1], - selExtendList = selector.extendList; - - extendList = selExtendList ? selExtendList.slice(0).concat(allSelectorsExtendList) - : allSelectorsExtendList; - - if (extendList) { - extendList = extendList.map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - } - - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if( extend.parent_ids.indexOf( targetExtend.object_id ) >= 0 ){ continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parent_ids = newExtend.parent_ids.concat(targetExtend.parent_ids, extend.parent_ids); - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (rulesetNode.extendOnEveryPath) { continue; } - var extendList = selectorPath[selectorPath.length-1].extendList; - if (extendList && extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator === '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - elementValue1 = elementValue1.value; - elementValue2 = elementValue2.value; - if (elementValue1 instanceof tree.Selector) { - if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) { - return false; - } - for(var i = 0; i currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - newElements = selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)); - - if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) { - path[path.length - 1].elements = - path[path.length - 1].elements.concat(newElements); - } else { - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - newElements - )); - } - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.sourceMapOutput = function (options) { - this._css = []; - this._rootNode = options.rootNode; - this._writeSourceMap = options.writeSourceMap; - this._contentsMap = options.contentsMap; - this._contentsIgnoredCharsMap = options.contentsIgnoredCharsMap; - this._sourceMapFilename = options.sourceMapFilename; - this._outputFilename = options.outputFilename; - this._sourceMapURL = options.sourceMapURL; - if (options.sourceMapBasepath) { - this._sourceMapBasepath = options.sourceMapBasepath.replace(/\\/g, '/'); - } - this._sourceMapRootpath = options.sourceMapRootpath; - this._outputSourceFiles = options.outputSourceFiles; - this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator; - - if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') { - this._sourceMapRootpath += '/'; - } - - this._lineNumber = 0; - this._column = 0; - }; - - tree.sourceMapOutput.prototype.normalizeFilename = function(filename) { - filename = filename.replace(/\\/g, '/'); - - if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) { - filename = filename.substring(this._sourceMapBasepath.length); - if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') { - filename = filename.substring(1); - } - } - return (this._sourceMapRootpath || "") + filename; - }; - - tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) { - - //ignore adding empty strings - if (!chunk) { - return; - } - - var lines, - sourceLines, - columns, - sourceColumns, - i; - - if (fileInfo) { - var inputSource = this._contentsMap[fileInfo.filename]; - - // remove vars/banner added to the top of the file - if (this._contentsIgnoredCharsMap[fileInfo.filename]) { - // adjust the index - index -= this._contentsIgnoredCharsMap[fileInfo.filename]; - if (index < 0) { index = 0; } - // adjust the source - inputSource = inputSource.slice(this._contentsIgnoredCharsMap[fileInfo.filename]); - } - inputSource = inputSource.substring(0, index); - sourceLines = inputSource.split("\n"); - sourceColumns = sourceLines[sourceLines.length-1]; - } - - lines = chunk.split("\n"); - columns = lines[lines.length-1]; - - if (fileInfo) { - if (!mapLines) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column}, - original: { line: sourceLines.length, column: sourceColumns.length}, - source: this.normalizeFilename(fileInfo.filename)}); - } else { - for(i = 0; i < lines.length; i++) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0}, - original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0}, - source: this.normalizeFilename(fileInfo.filename)}); - } - } - } - - if (lines.length === 1) { - this._column += columns.length; - } else { - this._lineNumber += lines.length - 1; - this._column = columns.length; - } - - this._css.push(chunk); - }; - - tree.sourceMapOutput.prototype.isEmpty = function() { - return this._css.length === 0; - }; - - tree.sourceMapOutput.prototype.toCSS = function(env) { - this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null }); - - if (this._outputSourceFiles) { - for(var filename in this._contentsMap) { - if (this._contentsMap.hasOwnProperty(filename)) - { - var source = this._contentsMap[filename]; - if (this._contentsIgnoredCharsMap[filename]) { - source = source.slice(this._contentsIgnoredCharsMap[filename]); - } - this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), source); - } - } - } - - this._rootNode.genCSS(env, this); - - if (this._css.length > 0) { - var sourceMapURL, - sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); - - if (this._sourceMapURL) { - sourceMapURL = this._sourceMapURL; - } else if (this._sourceMapFilename) { - sourceMapURL = this.normalizeFilename(this._sourceMapFilename); - } - - if (this._writeSourceMap) { - this._writeSourceMap(sourceMapContent); - } else { - sourceMapURL = "data:application/json;base64," + require('./encoder.js').encodeBase64(sourceMapContent); - } - - if (sourceMapURL) { - this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */"); - } - } - - return this._css.join(''); - }; - -})(require('./tree')); - -// wraps the source-map code in a less module -(function() { - less.modules["source-map"] = function() { - -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ - -/** - * Define a module along with a payload. - * @param {string} moduleName Name for the payload - * @param {ignored} deps Ignored. For compatibility with CommonJS AMD Spec - * @param {function} payload Function with (require, exports, module) params - */ -function define(moduleName, deps, payload) { - if (typeof moduleName != "string") { - throw new TypeError('Expected string, got: ' + moduleName); - } - - if (arguments.length == 2) { - payload = deps; - } - - if (moduleName in define.modules) { - throw new Error("Module already defined: " + moduleName); - } - define.modules[moduleName] = payload; -}; - -/** - * The global store of un-instantiated modules - */ -define.modules = {}; - - -/** - * We invoke require() in the context of a Domain so we can have multiple - * sets of modules running separate from each other. - * This contrasts with JSMs which are singletons, Domains allows us to - * optionally load a CommonJS module twice with separate data each time. - * Perhaps you want 2 command lines with a different set of commands in each, - * for example. - */ -function Domain() { - this.modules = {}; - this._currentModule = null; -} - -(function () { - - /** - * Lookup module names and resolve them by calling the definition function if - * needed. - * There are 2 ways to call this, either with an array of dependencies and a - * callback to call when the dependencies are found (which can happen - * asynchronously in an in-page context) or with a single string an no callback - * where the dependency is resolved synchronously and returned. - * The API is designed to be compatible with the CommonJS AMD spec and - * RequireJS. - * @param {string[]|string} deps A name, or names for the payload - * @param {function|undefined} callback Function to call when the dependencies - * are resolved - * @return {undefined|object} The module required or undefined for - * array/callback method - */ - Domain.prototype.require = function(deps, callback) { - if (Array.isArray(deps)) { - var params = deps.map(function(dep) { - return this.lookup(dep); - }, this); - if (callback) { - callback.apply(null, params); - } - return undefined; - } - else { - return this.lookup(deps); - } - }; - - function normalize(path) { - var bits = path.split('/'); - var i = 1; - while (i < bits.length) { - if (bits[i] === '..') { - bits.splice(i-1, 1); - } else if (bits[i] === '.') { - bits.splice(i, 1); - } else { - i++; - } - } - return bits.join('/'); - } - - function join(a, b) { - a = a.trim(); - b = b.trim(); - if (/^\//.test(b)) { - return b; - } else { - return a.replace(/\/*$/, '/') + b; - } - } - - function dirname(path) { - var bits = path.split('/'); - bits.pop(); - return bits.join('/'); - } - - /** - * Lookup module names and resolve them by calling the definition function if - * needed. - * @param {string} moduleName A name for the payload to lookup - * @return {object} The module specified by aModuleName or null if not found. - */ - Domain.prototype.lookup = function(moduleName) { - if (/^\./.test(moduleName)) { - moduleName = normalize(join(dirname(this._currentModule), moduleName)); - } - - if (moduleName in this.modules) { - var module = this.modules[moduleName]; - return module; - } - - if (!(moduleName in define.modules)) { - throw new Error("Module not defined: " + moduleName); - } - - var module = define.modules[moduleName]; - - if (typeof module == "function") { - var exports = {}; - var previousModule = this._currentModule; - this._currentModule = moduleName; - module(this.require.bind(this), exports, { id: moduleName, uri: "" }); - this._currentModule = previousModule; - module = exports; - } - - // cache the resulting module object for next time - this.modules[moduleName] = module; - - return module; - }; - -}()); - -define.Domain = Domain; -define.globalDomain = new Domain(); -var require = define.globalDomain.require.bind(define.globalDomain); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/source-map-generator', ['require', 'exports', 'module' , 'source-map/base64-vlq', 'source-map/util', 'source-map/array-set'], function(require, exports, module) { - - var base64VLQ = require('./base64-vlq'); - var util = require('./util'); - var ArraySet = require('./array-set').ArraySet; - - /** - * An instance of the SourceMapGenerator represents a source map which is - * being built incrementally. To create a new one, you must pass an object - * with the following properties: - * - * - file: The filename of the generated source. - * - sourceRoot: An optional root for all URLs in this source map. - */ - function SourceMapGenerator(aArgs) { - this._file = util.getArg(aArgs, 'file'); - this._sourceRoot = util.getArg(aArgs, 'sourceRoot', null); - this._sources = new ArraySet(); - this._names = new ArraySet(); - this._mappings = []; - this._sourcesContents = null; - } - - SourceMapGenerator.prototype._version = 3; - - /** - * Creates a new SourceMapGenerator based on a SourceMapConsumer - * - * @param aSourceMapConsumer The SourceMap. - */ - SourceMapGenerator.fromSourceMap = - function SourceMapGenerator_fromSourceMap(aSourceMapConsumer) { - var sourceRoot = aSourceMapConsumer.sourceRoot; - var generator = new SourceMapGenerator({ - file: aSourceMapConsumer.file, - sourceRoot: sourceRoot - }); - aSourceMapConsumer.eachMapping(function (mapping) { - var newMapping = { - generated: { - line: mapping.generatedLine, - column: mapping.generatedColumn - } - }; - - if (mapping.source) { - newMapping.source = mapping.source; - if (sourceRoot) { - newMapping.source = util.relative(sourceRoot, newMapping.source); - } - - newMapping.original = { - line: mapping.originalLine, - column: mapping.originalColumn - }; - - if (mapping.name) { - newMapping.name = mapping.name; - } - } - - generator.addMapping(newMapping); - }); - aSourceMapConsumer.sources.forEach(function (sourceFile) { - var content = aSourceMapConsumer.sourceContentFor(sourceFile); - if (content) { - generator.setSourceContent(sourceFile, content); - } - }); - return generator; - }; - - /** - * Add a single mapping from original source line and column to the generated - * source's line and column for this source map being created. The mapping - * object should have the following properties: - * - * - generated: An object with the generated line and column positions. - * - original: An object with the original line and column positions. - * - source: The original source file (relative to the sourceRoot). - * - name: An optional original token name for this mapping. - */ - SourceMapGenerator.prototype.addMapping = - function SourceMapGenerator_addMapping(aArgs) { - var generated = util.getArg(aArgs, 'generated'); - var original = util.getArg(aArgs, 'original', null); - var source = util.getArg(aArgs, 'source', null); - var name = util.getArg(aArgs, 'name', null); - - this._validateMapping(generated, original, source, name); - - if (source && !this._sources.has(source)) { - this._sources.add(source); - } - - if (name && !this._names.has(name)) { - this._names.add(name); - } - - this._mappings.push({ - generatedLine: generated.line, - generatedColumn: generated.column, - originalLine: original != null && original.line, - originalColumn: original != null && original.column, - source: source, - name: name - }); - }; - - /** - * Set the source content for a source file. - */ - SourceMapGenerator.prototype.setSourceContent = - function SourceMapGenerator_setSourceContent(aSourceFile, aSourceContent) { - var source = aSourceFile; - if (this._sourceRoot) { - source = util.relative(this._sourceRoot, source); - } - - if (aSourceContent !== null) { - // Add the source content to the _sourcesContents map. - // Create a new _sourcesContents map if the property is null. - if (!this._sourcesContents) { - this._sourcesContents = {}; - } - this._sourcesContents[util.toSetString(source)] = aSourceContent; - } else { - // Remove the source file from the _sourcesContents map. - // If the _sourcesContents map is empty, set the property to null. - delete this._sourcesContents[util.toSetString(source)]; - if (Object.keys(this._sourcesContents).length === 0) { - this._sourcesContents = null; - } - } - }; - - /** - * Applies the mappings of a sub-source-map for a specific source file to the - * source map being generated. Each mapping to the supplied source file is - * rewritten using the supplied source map. Note: The resolution for the - * resulting mappings is the minimium of this map and the supplied map. - * - * @param aSourceMapConsumer The source map to be applied. - * @param aSourceFile Optional. The filename of the source file. - * If omitted, SourceMapConsumer's file property will be used. - */ - SourceMapGenerator.prototype.applySourceMap = - function SourceMapGenerator_applySourceMap(aSourceMapConsumer, aSourceFile) { - // If aSourceFile is omitted, we will use the file property of the SourceMap - if (!aSourceFile) { - aSourceFile = aSourceMapConsumer.file; - } - var sourceRoot = this._sourceRoot; - // Make "aSourceFile" relative if an absolute Url is passed. - if (sourceRoot) { - aSourceFile = util.relative(sourceRoot, aSourceFile); - } - // Applying the SourceMap can add and remove items from the sources and - // the names array. - var newSources = new ArraySet(); - var newNames = new ArraySet(); - - // Find mappings for the "aSourceFile" - this._mappings.forEach(function (mapping) { - if (mapping.source === aSourceFile && mapping.originalLine) { - // Check if it can be mapped by the source map, then update the mapping. - var original = aSourceMapConsumer.originalPositionFor({ - line: mapping.originalLine, - column: mapping.originalColumn - }); - if (original.source !== null) { - // Copy mapping - if (sourceRoot) { - mapping.source = util.relative(sourceRoot, original.source); - } else { - mapping.source = original.source; - } - mapping.originalLine = original.line; - mapping.originalColumn = original.column; - if (original.name !== null && mapping.name !== null) { - // Only use the identifier name if it's an identifier - // in both SourceMaps - mapping.name = original.name; - } - } - } - - var source = mapping.source; - if (source && !newSources.has(source)) { - newSources.add(source); - } - - var name = mapping.name; - if (name && !newNames.has(name)) { - newNames.add(name); - } - - }, this); - this._sources = newSources; - this._names = newNames; - - // Copy sourcesContents of applied map. - aSourceMapConsumer.sources.forEach(function (sourceFile) { - var content = aSourceMapConsumer.sourceContentFor(sourceFile); - if (content) { - if (sourceRoot) { - sourceFile = util.relative(sourceRoot, sourceFile); - } - this.setSourceContent(sourceFile, content); - } - }, this); - }; - - /** - * A mapping can have one of the three levels of data: - * - * 1. Just the generated position. - * 2. The Generated position, original position, and original source. - * 3. Generated and original position, original source, as well as a name - * token. - * - * To maintain consistency, we validate that any new mapping being added falls - * in to one of these categories. - */ - SourceMapGenerator.prototype._validateMapping = - function SourceMapGenerator_validateMapping(aGenerated, aOriginal, aSource, - aName) { - if (aGenerated && 'line' in aGenerated && 'column' in aGenerated - && aGenerated.line > 0 && aGenerated.column >= 0 - && !aOriginal && !aSource && !aName) { - // Case 1. - return; - } - else if (aGenerated && 'line' in aGenerated && 'column' in aGenerated - && aOriginal && 'line' in aOriginal && 'column' in aOriginal - && aGenerated.line > 0 && aGenerated.column >= 0 - && aOriginal.line > 0 && aOriginal.column >= 0 - && aSource) { - // Cases 2 and 3. - return; - } - else { - throw new Error('Invalid mapping: ' + JSON.stringify({ - generated: aGenerated, - source: aSource, - original: aOriginal, - name: aName - })); - } - }; - - /** - * Serialize the accumulated mappings in to the stream of base 64 VLQs - * specified by the source map format. - */ - SourceMapGenerator.prototype._serializeMappings = - function SourceMapGenerator_serializeMappings() { - var previousGeneratedColumn = 0; - var previousGeneratedLine = 1; - var previousOriginalColumn = 0; - var previousOriginalLine = 0; - var previousName = 0; - var previousSource = 0; - var result = ''; - var mapping; - - // The mappings must be guaranteed to be in sorted order before we start - // serializing them or else the generated line numbers (which are defined - // via the ';' separators) will be all messed up. Note: it might be more - // performant to maintain the sorting as we insert them, rather than as we - // serialize them, but the big O is the same either way. - this._mappings.sort(util.compareByGeneratedPositions); - - for (var i = 0, len = this._mappings.length; i < len; i++) { - mapping = this._mappings[i]; - - if (mapping.generatedLine !== previousGeneratedLine) { - previousGeneratedColumn = 0; - while (mapping.generatedLine !== previousGeneratedLine) { - result += ';'; - previousGeneratedLine++; - } - } - else { - if (i > 0) { - if (!util.compareByGeneratedPositions(mapping, this._mappings[i - 1])) { - continue; - } - result += ','; - } - } - - result += base64VLQ.encode(mapping.generatedColumn - - previousGeneratedColumn); - previousGeneratedColumn = mapping.generatedColumn; - - if (mapping.source) { - result += base64VLQ.encode(this._sources.indexOf(mapping.source) - - previousSource); - previousSource = this._sources.indexOf(mapping.source); - - // lines are stored 0-based in SourceMap spec version 3 - result += base64VLQ.encode(mapping.originalLine - 1 - - previousOriginalLine); - previousOriginalLine = mapping.originalLine - 1; - - result += base64VLQ.encode(mapping.originalColumn - - previousOriginalColumn); - previousOriginalColumn = mapping.originalColumn; - - if (mapping.name) { - result += base64VLQ.encode(this._names.indexOf(mapping.name) - - previousName); - previousName = this._names.indexOf(mapping.name); - } - } - } - - return result; - }; - - SourceMapGenerator.prototype._generateSourcesContent = - function SourceMapGenerator_generateSourcesContent(aSources, aSourceRoot) { - return aSources.map(function (source) { - if (!this._sourcesContents) { - return null; - } - if (aSourceRoot) { - source = util.relative(aSourceRoot, source); - } - var key = util.toSetString(source); - return Object.prototype.hasOwnProperty.call(this._sourcesContents, - key) - ? this._sourcesContents[key] - : null; - }, this); - }; - - /** - * Externalize the source map. - */ - SourceMapGenerator.prototype.toJSON = - function SourceMapGenerator_toJSON() { - var map = { - version: this._version, - file: this._file, - sources: this._sources.toArray(), - names: this._names.toArray(), - mappings: this._serializeMappings() - }; - if (this._sourceRoot) { - map.sourceRoot = this._sourceRoot; - } - if (this._sourcesContents) { - map.sourcesContent = this._generateSourcesContent(map.sources, map.sourceRoot); - } - - return map; - }; - - /** - * Render the source map being generated to a string. - */ - SourceMapGenerator.prototype.toString = - function SourceMapGenerator_toString() { - return JSON.stringify(this); - }; - - exports.SourceMapGenerator = SourceMapGenerator; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - * - * Based on the Base 64 VLQ implementation in Closure Compiler: - * https://code.google.com/p/closure-compiler/source/browse/trunk/src/com/google/debugging/sourcemap/Base64VLQ.java - * - * Copyright 2011 The Closure Compiler Authors. All rights reserved. - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following - * disclaimer in the documentation and/or other materials provided - * with the distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ -define('source-map/base64-vlq', ['require', 'exports', 'module' , 'source-map/base64'], function(require, exports, module) { - - var base64 = require('./base64'); - - // A single base 64 digit can contain 6 bits of data. For the base 64 variable - // length quantities we use in the source map spec, the first bit is the sign, - // the next four bits are the actual value, and the 6th bit is the - // continuation bit. The continuation bit tells us whether there are more - // digits in this value following this digit. - // - // Continuation - // | Sign - // | | - // V V - // 101011 - - var VLQ_BASE_SHIFT = 5; - - // binary: 100000 - var VLQ_BASE = 1 << VLQ_BASE_SHIFT; - - // binary: 011111 - var VLQ_BASE_MASK = VLQ_BASE - 1; - - // binary: 100000 - var VLQ_CONTINUATION_BIT = VLQ_BASE; - - /** - * Converts from a two-complement value to a value where the sign bit is - * is placed in the least significant bit. For example, as decimals: - * 1 becomes 2 (10 binary), -1 becomes 3 (11 binary) - * 2 becomes 4 (100 binary), -2 becomes 5 (101 binary) - */ - function toVLQSigned(aValue) { - return aValue < 0 - ? ((-aValue) << 1) + 1 - : (aValue << 1) + 0; - } - - /** - * Converts to a two-complement value from a value where the sign bit is - * is placed in the least significant bit. For example, as decimals: - * 2 (10 binary) becomes 1, 3 (11 binary) becomes -1 - * 4 (100 binary) becomes 2, 5 (101 binary) becomes -2 - */ - function fromVLQSigned(aValue) { - var isNegative = (aValue & 1) === 1; - var shifted = aValue >> 1; - return isNegative - ? -shifted - : shifted; - } - - /** - * Returns the base 64 VLQ encoded value. - */ - exports.encode = function base64VLQ_encode(aValue) { - var encoded = ""; - var digit; - - var vlq = toVLQSigned(aValue); - - do { - digit = vlq & VLQ_BASE_MASK; - vlq >>>= VLQ_BASE_SHIFT; - if (vlq > 0) { - // There are still more digits in this value, so we must make sure the - // continuation bit is marked. - digit |= VLQ_CONTINUATION_BIT; - } - encoded += base64.encode(digit); - } while (vlq > 0); - - return encoded; - }; - - /** - * Decodes the next base 64 VLQ value from the given string and returns the - * value and the rest of the string. - */ - exports.decode = function base64VLQ_decode(aStr) { - var i = 0; - var strLen = aStr.length; - var result = 0; - var shift = 0; - var continuation, digit; - - do { - if (i >= strLen) { - throw new Error("Expected more digits in base 64 VLQ value."); - } - digit = base64.decode(aStr.charAt(i++)); - continuation = !!(digit & VLQ_CONTINUATION_BIT); - digit &= VLQ_BASE_MASK; - result = result + (digit << shift); - shift += VLQ_BASE_SHIFT; - } while (continuation); - - return { - value: fromVLQSigned(result), - rest: aStr.slice(i) - }; - }; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/base64', ['require', 'exports', 'module' , ], function(require, exports, module) { - - var charToIntMap = {}; - var intToCharMap = {}; - - 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/' - .split('') - .forEach(function (ch, index) { - charToIntMap[ch] = index; - intToCharMap[index] = ch; - }); - - /** - * Encode an integer in the range of 0 to 63 to a single base 64 digit. - */ - exports.encode = function base64_encode(aNumber) { - if (aNumber in intToCharMap) { - return intToCharMap[aNumber]; - } - throw new TypeError("Must be between 0 and 63: " + aNumber); - }; - - /** - * Decode a single base 64 digit to an integer. - */ - exports.decode = function base64_decode(aChar) { - if (aChar in charToIntMap) { - return charToIntMap[aChar]; - } - throw new TypeError("Not a valid base 64 digit: " + aChar); - }; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/util', ['require', 'exports', 'module' , ], function(require, exports, module) { - - /** - * This is a helper function for getting values from parameter/options - * objects. - * - * @param args The object we are extracting values from - * @param name The name of the property we are getting. - * @param defaultValue An optional value to return if the property is missing - * from the object. If this is not specified and the property is missing, an - * error will be thrown. - */ - function getArg(aArgs, aName, aDefaultValue) { - if (aName in aArgs) { - return aArgs[aName]; - } else if (arguments.length === 3) { - return aDefaultValue; - } else { - throw new Error('"' + aName + '" is a required argument.'); - } - } - exports.getArg = getArg; - - var urlRegexp = /([\w+\-.]+):\/\/((\w+:\w+)@)?([\w.]+)?(:(\d+))?(\S+)?/; - var dataUrlRegexp = /^data:.+\,.+/; - - function urlParse(aUrl) { - var match = aUrl.match(urlRegexp); - if (!match) { - return null; - } - return { - scheme: match[1], - auth: match[3], - host: match[4], - port: match[6], - path: match[7] - }; - } - exports.urlParse = urlParse; - - function urlGenerate(aParsedUrl) { - var url = aParsedUrl.scheme + "://"; - if (aParsedUrl.auth) { - url += aParsedUrl.auth + "@" - } - if (aParsedUrl.host) { - url += aParsedUrl.host; - } - if (aParsedUrl.port) { - url += ":" + aParsedUrl.port - } - if (aParsedUrl.path) { - url += aParsedUrl.path; - } - return url; - } - exports.urlGenerate = urlGenerate; - - function join(aRoot, aPath) { - var url; - - if (aPath.match(urlRegexp) || aPath.match(dataUrlRegexp)) { - return aPath; - } - - if (aPath.charAt(0) === '/' && (url = urlParse(aRoot))) { - url.path = aPath; - return urlGenerate(url); - } - - return aRoot.replace(/\/$/, '') + '/' + aPath; - } - exports.join = join; - - /** - * Because behavior goes wacky when you set `__proto__` on objects, we - * have to prefix all the strings in our set with an arbitrary character. - * - * See https://github.com/mozilla/source-map/pull/31 and - * https://github.com/mozilla/source-map/issues/30 - * - * @param String aStr - */ - function toSetString(aStr) { - return '$' + aStr; - } - exports.toSetString = toSetString; - - function fromSetString(aStr) { - return aStr.substr(1); - } - exports.fromSetString = fromSetString; - - function relative(aRoot, aPath) { - aRoot = aRoot.replace(/\/$/, ''); - - var url = urlParse(aRoot); - if (aPath.charAt(0) == "/" && url && url.path == "/") { - return aPath.slice(1); - } - - return aPath.indexOf(aRoot + '/') === 0 - ? aPath.substr(aRoot.length + 1) - : aPath; - } - exports.relative = relative; - - function strcmp(aStr1, aStr2) { - var s1 = aStr1 || ""; - var s2 = aStr2 || ""; - return (s1 > s2) - (s1 < s2); - } - - /** - * Comparator between two mappings where the original positions are compared. - * - * Optionally pass in `true` as `onlyCompareGenerated` to consider two - * mappings with the same original source/line/column, but different generated - * line and column the same. Useful when searching for a mapping with a - * stubbed out mapping. - */ - function compareByOriginalPositions(mappingA, mappingB, onlyCompareOriginal) { - var cmp; - - cmp = strcmp(mappingA.source, mappingB.source); - if (cmp) { - return cmp; - } - - cmp = mappingA.originalLine - mappingB.originalLine; - if (cmp) { - return cmp; - } - - cmp = mappingA.originalColumn - mappingB.originalColumn; - if (cmp || onlyCompareOriginal) { - return cmp; - } - - cmp = strcmp(mappingA.name, mappingB.name); - if (cmp) { - return cmp; - } - - cmp = mappingA.generatedLine - mappingB.generatedLine; - if (cmp) { - return cmp; - } - - return mappingA.generatedColumn - mappingB.generatedColumn; - }; - exports.compareByOriginalPositions = compareByOriginalPositions; - - /** - * Comparator between two mappings where the generated positions are - * compared. - * - * Optionally pass in `true` as `onlyCompareGenerated` to consider two - * mappings with the same generated line and column, but different - * source/name/original line and column the same. Useful when searching for a - * mapping with a stubbed out mapping. - */ - function compareByGeneratedPositions(mappingA, mappingB, onlyCompareGenerated) { - var cmp; - - cmp = mappingA.generatedLine - mappingB.generatedLine; - if (cmp) { - return cmp; - } - - cmp = mappingA.generatedColumn - mappingB.generatedColumn; - if (cmp || onlyCompareGenerated) { - return cmp; - } - - cmp = strcmp(mappingA.source, mappingB.source); - if (cmp) { - return cmp; - } - - cmp = mappingA.originalLine - mappingB.originalLine; - if (cmp) { - return cmp; - } - - cmp = mappingA.originalColumn - mappingB.originalColumn; - if (cmp) { - return cmp; - } - - return strcmp(mappingA.name, mappingB.name); - }; - exports.compareByGeneratedPositions = compareByGeneratedPositions; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/array-set', ['require', 'exports', 'module' , 'source-map/util'], function(require, exports, module) { - - var util = require('./util'); - - /** - * A data structure which is a combination of an array and a set. Adding a new - * member is O(1), testing for membership is O(1), and finding the index of an - * element is O(1). Removing elements from the set is not supported. Only - * strings are supported for membership. - */ - function ArraySet() { - this._array = []; - this._set = {}; - } - - /** - * Static method for creating ArraySet instances from an existing array. - */ - ArraySet.fromArray = function ArraySet_fromArray(aArray, aAllowDuplicates) { - var set = new ArraySet(); - for (var i = 0, len = aArray.length; i < len; i++) { - set.add(aArray[i], aAllowDuplicates); - } - return set; - }; - - /** - * Add the given string to this set. - * - * @param String aStr - */ - ArraySet.prototype.add = function ArraySet_add(aStr, aAllowDuplicates) { - var isDuplicate = this.has(aStr); - var idx = this._array.length; - if (!isDuplicate || aAllowDuplicates) { - this._array.push(aStr); - } - if (!isDuplicate) { - this._set[util.toSetString(aStr)] = idx; - } - }; - - /** - * Is the given string a member of this set? - * - * @param String aStr - */ - ArraySet.prototype.has = function ArraySet_has(aStr) { - return Object.prototype.hasOwnProperty.call(this._set, - util.toSetString(aStr)); - }; - - /** - * What is the index of the given string in the array? - * - * @param String aStr - */ - ArraySet.prototype.indexOf = function ArraySet_indexOf(aStr) { - if (this.has(aStr)) { - return this._set[util.toSetString(aStr)]; - } - throw new Error('"' + aStr + '" is not in the set.'); - }; - - /** - * What is the element at the given index? - * - * @param Number aIdx - */ - ArraySet.prototype.at = function ArraySet_at(aIdx) { - if (aIdx >= 0 && aIdx < this._array.length) { - return this._array[aIdx]; - } - throw new Error('No element indexed by ' + aIdx); - }; - - /** - * Returns the array representation of this set (which has the proper indices - * indicated by indexOf). Note that this is a copy of the internal array used - * for storing the members so that no one can mess with internal state. - */ - ArraySet.prototype.toArray = function ArraySet_toArray() { - return this._array.slice(); - }; - - exports.ArraySet = ArraySet; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/source-map-consumer', ['require', 'exports', 'module' , 'source-map/util', 'source-map/binary-search', 'source-map/array-set', 'source-map/base64-vlq'], function(require, exports, module) { - - var util = require('./util'); - var binarySearch = require('./binary-search'); - var ArraySet = require('./array-set').ArraySet; - var base64VLQ = require('./base64-vlq'); - - /** - * A SourceMapConsumer instance represents a parsed source map which we can - * query for information about the original file positions by giving it a file - * position in the generated source. - * - * The only parameter is the raw source map (either as a JSON string, or - * already parsed to an object). According to the spec, source maps have the - * following attributes: - * - * - version: Which version of the source map spec this map is following. - * - sources: An array of URLs to the original source files. - * - names: An array of identifiers which can be referrenced by individual mappings. - * - sourceRoot: Optional. The URL root from which all sources are relative. - * - sourcesContent: Optional. An array of contents of the original source files. - * - mappings: A string of base64 VLQs which contain the actual mappings. - * - file: The generated file this source map is associated with. - * - * Here is an example source map, taken from the source map spec[0]: - * - * { - * version : 3, - * file: "out.js", - * sourceRoot : "", - * sources: ["foo.js", "bar.js"], - * names: ["src", "maps", "are", "fun"], - * mappings: "AA,AB;;ABCDE;" - * } - * - * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit?pli=1# - */ - function SourceMapConsumer(aSourceMap) { - var sourceMap = aSourceMap; - if (typeof aSourceMap === 'string') { - sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, '')); - } - - var version = util.getArg(sourceMap, 'version'); - var sources = util.getArg(sourceMap, 'sources'); - // Sass 3.3 leaves out the 'names' array, so we deviate from the spec (which - // requires the array) to play nice here. - var names = util.getArg(sourceMap, 'names', []); - var sourceRoot = util.getArg(sourceMap, 'sourceRoot', null); - var sourcesContent = util.getArg(sourceMap, 'sourcesContent', null); - var mappings = util.getArg(sourceMap, 'mappings'); - var file = util.getArg(sourceMap, 'file', null); - - // Once again, Sass deviates from the spec and supplies the version as a - // string rather than a number, so we use loose equality checking here. - if (version != this._version) { - throw new Error('Unsupported version: ' + version); - } - - // Pass `true` below to allow duplicate names and sources. While source maps - // are intended to be compressed and deduplicated, the TypeScript compiler - // sometimes generates source maps with duplicates in them. See Github issue - // #72 and bugzil.la/889492. - this._names = ArraySet.fromArray(names, true); - this._sources = ArraySet.fromArray(sources, true); - - this.sourceRoot = sourceRoot; - this.sourcesContent = sourcesContent; - this._mappings = mappings; - this.file = file; - } - - /** - * Create a SourceMapConsumer from a SourceMapGenerator. - * - * @param SourceMapGenerator aSourceMap - * The source map that will be consumed. - * @returns SourceMapConsumer - */ - SourceMapConsumer.fromSourceMap = - function SourceMapConsumer_fromSourceMap(aSourceMap) { - var smc = Object.create(SourceMapConsumer.prototype); - - smc._names = ArraySet.fromArray(aSourceMap._names.toArray(), true); - smc._sources = ArraySet.fromArray(aSourceMap._sources.toArray(), true); - smc.sourceRoot = aSourceMap._sourceRoot; - smc.sourcesContent = aSourceMap._generateSourcesContent(smc._sources.toArray(), - smc.sourceRoot); - smc.file = aSourceMap._file; - - smc.__generatedMappings = aSourceMap._mappings.slice() - .sort(util.compareByGeneratedPositions); - smc.__originalMappings = aSourceMap._mappings.slice() - .sort(util.compareByOriginalPositions); - - return smc; - }; - - /** - * The version of the source mapping spec that we are consuming. - */ - SourceMapConsumer.prototype._version = 3; - - /** - * The list of original sources. - */ - Object.defineProperty(SourceMapConsumer.prototype, 'sources', { - get: function () { - return this._sources.toArray().map(function (s) { - return this.sourceRoot ? util.join(this.sourceRoot, s) : s; - }, this); - } - }); - - // `__generatedMappings` and `__originalMappings` are arrays that hold the - // parsed mapping coordinates from the source map's "mappings" attribute. They - // are lazily instantiated, accessed via the `_generatedMappings` and - // `_originalMappings` getters respectively, and we only parse the mappings - // and create these arrays once queried for a source location. We jump through - // these hoops because there can be many thousands of mappings, and parsing - // them is expensive, so we only want to do it if we must. - // - // Each object in the arrays is of the form: - // - // { - // generatedLine: The line number in the generated code, - // generatedColumn: The column number in the generated code, - // source: The path to the original source file that generated this - // chunk of code, - // originalLine: The line number in the original source that - // corresponds to this chunk of generated code, - // originalColumn: The column number in the original source that - // corresponds to this chunk of generated code, - // name: The name of the original symbol which generated this chunk of - // code. - // } - // - // All properties except for `generatedLine` and `generatedColumn` can be - // `null`. - // - // `_generatedMappings` is ordered by the generated positions. - // - // `_originalMappings` is ordered by the original positions. - - SourceMapConsumer.prototype.__generatedMappings = null; - Object.defineProperty(SourceMapConsumer.prototype, '_generatedMappings', { - get: function () { - if (!this.__generatedMappings) { - this.__generatedMappings = []; - this.__originalMappings = []; - this._parseMappings(this._mappings, this.sourceRoot); - } - - return this.__generatedMappings; - } - }); - - SourceMapConsumer.prototype.__originalMappings = null; - Object.defineProperty(SourceMapConsumer.prototype, '_originalMappings', { - get: function () { - if (!this.__originalMappings) { - this.__generatedMappings = []; - this.__originalMappings = []; - this._parseMappings(this._mappings, this.sourceRoot); - } - - return this.__originalMappings; - } - }); - - /** - * Parse the mappings in a string in to a data structure which we can easily - * query (the ordered arrays in the `this.__generatedMappings` and - * `this.__originalMappings` properties). - */ - SourceMapConsumer.prototype._parseMappings = - function SourceMapConsumer_parseMappings(aStr, aSourceRoot) { - var generatedLine = 1; - var previousGeneratedColumn = 0; - var previousOriginalLine = 0; - var previousOriginalColumn = 0; - var previousSource = 0; - var previousName = 0; - var mappingSeparator = /^[,;]/; - var str = aStr; - var mapping; - var temp; - - while (str.length > 0) { - if (str.charAt(0) === ';') { - generatedLine++; - str = str.slice(1); - previousGeneratedColumn = 0; - } - else if (str.charAt(0) === ',') { - str = str.slice(1); - } - else { - mapping = {}; - mapping.generatedLine = generatedLine; - - // Generated column. - temp = base64VLQ.decode(str); - mapping.generatedColumn = previousGeneratedColumn + temp.value; - previousGeneratedColumn = mapping.generatedColumn; - str = temp.rest; - - if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) { - // Original source. - temp = base64VLQ.decode(str); - mapping.source = this._sources.at(previousSource + temp.value); - previousSource += temp.value; - str = temp.rest; - if (str.length === 0 || mappingSeparator.test(str.charAt(0))) { - throw new Error('Found a source, but no line and column'); - } - - // Original line. - temp = base64VLQ.decode(str); - mapping.originalLine = previousOriginalLine + temp.value; - previousOriginalLine = mapping.originalLine; - // Lines are stored 0-based - mapping.originalLine += 1; - str = temp.rest; - if (str.length === 0 || mappingSeparator.test(str.charAt(0))) { - throw new Error('Found a source and line, but no column'); - } - - // Original column. - temp = base64VLQ.decode(str); - mapping.originalColumn = previousOriginalColumn + temp.value; - previousOriginalColumn = mapping.originalColumn; - str = temp.rest; - - if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) { - // Original name. - temp = base64VLQ.decode(str); - mapping.name = this._names.at(previousName + temp.value); - previousName += temp.value; - str = temp.rest; - } - } - - this.__generatedMappings.push(mapping); - if (typeof mapping.originalLine === 'number') { - this.__originalMappings.push(mapping); - } - } - } - - this.__originalMappings.sort(util.compareByOriginalPositions); - }; - - /** - * Find the mapping that best matches the hypothetical "needle" mapping that - * we are searching for in the given "haystack" of mappings. - */ - SourceMapConsumer.prototype._findMapping = - function SourceMapConsumer_findMapping(aNeedle, aMappings, aLineName, - aColumnName, aComparator) { - // To return the position we are searching for, we must first find the - // mapping for the given position and then return the opposite position it - // points to. Because the mappings are sorted, we can use binary search to - // find the best mapping. - - if (aNeedle[aLineName] <= 0) { - throw new TypeError('Line must be greater than or equal to 1, got ' - + aNeedle[aLineName]); - } - if (aNeedle[aColumnName] < 0) { - throw new TypeError('Column must be greater than or equal to 0, got ' - + aNeedle[aColumnName]); - } - - return binarySearch.search(aNeedle, aMappings, aComparator); - }; - - /** - * Returns the original source, line, and column information for the generated - * source's line and column positions provided. The only argument is an object - * with the following properties: - * - * - line: The line number in the generated source. - * - column: The column number in the generated source. - * - * and an object is returned with the following properties: - * - * - source: The original source file, or null. - * - line: The line number in the original source, or null. - * - column: The column number in the original source, or null. - * - name: The original identifier, or null. - */ - SourceMapConsumer.prototype.originalPositionFor = - function SourceMapConsumer_originalPositionFor(aArgs) { - var needle = { - generatedLine: util.getArg(aArgs, 'line'), - generatedColumn: util.getArg(aArgs, 'column') - }; - - var mapping = this._findMapping(needle, - this._generatedMappings, - "generatedLine", - "generatedColumn", - util.compareByGeneratedPositions); - - if (mapping) { - var source = util.getArg(mapping, 'source', null); - if (source && this.sourceRoot) { - source = util.join(this.sourceRoot, source); - } - return { - source: source, - line: util.getArg(mapping, 'originalLine', null), - column: util.getArg(mapping, 'originalColumn', null), - name: util.getArg(mapping, 'name', null) - }; - } - - return { - source: null, - line: null, - column: null, - name: null - }; - }; - - /** - * Returns the original source content. The only argument is the url of the - * original source file. Returns null if no original source content is - * availible. - */ - SourceMapConsumer.prototype.sourceContentFor = - function SourceMapConsumer_sourceContentFor(aSource) { - if (!this.sourcesContent) { - return null; - } - - if (this.sourceRoot) { - aSource = util.relative(this.sourceRoot, aSource); - } - - if (this._sources.has(aSource)) { - return this.sourcesContent[this._sources.indexOf(aSource)]; - } - - var url; - if (this.sourceRoot - && (url = util.urlParse(this.sourceRoot))) { - // XXX: file:// URIs and absolute paths lead to unexpected behavior for - // many users. We can help them out when they expect file:// URIs to - // behave like it would if they were running a local HTTP server. See - // https://bugzilla.mozilla.org/show_bug.cgi?id=885597. - var fileUriAbsPath = aSource.replace(/^file:\/\//, ""); - if (url.scheme == "file" - && this._sources.has(fileUriAbsPath)) { - return this.sourcesContent[this._sources.indexOf(fileUriAbsPath)] - } - - if ((!url.path || url.path == "/") - && this._sources.has("/" + aSource)) { - return this.sourcesContent[this._sources.indexOf("/" + aSource)]; - } - } - - throw new Error('"' + aSource + '" is not in the SourceMap.'); - }; - - /** - * Returns the generated line and column information for the original source, - * line, and column positions provided. The only argument is an object with - * the following properties: - * - * - source: The filename of the original source. - * - line: The line number in the original source. - * - column: The column number in the original source. - * - * and an object is returned with the following properties: - * - * - line: The line number in the generated source, or null. - * - column: The column number in the generated source, or null. - */ - SourceMapConsumer.prototype.generatedPositionFor = - function SourceMapConsumer_generatedPositionFor(aArgs) { - var needle = { - source: util.getArg(aArgs, 'source'), - originalLine: util.getArg(aArgs, 'line'), - originalColumn: util.getArg(aArgs, 'column') - }; - - if (this.sourceRoot) { - needle.source = util.relative(this.sourceRoot, needle.source); - } - - var mapping = this._findMapping(needle, - this._originalMappings, - "originalLine", - "originalColumn", - util.compareByOriginalPositions); - - if (mapping) { - return { - line: util.getArg(mapping, 'generatedLine', null), - column: util.getArg(mapping, 'generatedColumn', null) - }; - } - - return { - line: null, - column: null - }; - }; - - SourceMapConsumer.GENERATED_ORDER = 1; - SourceMapConsumer.ORIGINAL_ORDER = 2; - - /** - * Iterate over each mapping between an original source/line/column and a - * generated line/column in this source map. - * - * @param Function aCallback - * The function that is called with each mapping. - * @param Object aContext - * Optional. If specified, this object will be the value of `this` every - * time that `aCallback` is called. - * @param aOrder - * Either `SourceMapConsumer.GENERATED_ORDER` or - * `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to - * iterate over the mappings sorted by the generated file's line/column - * order or the original's source/line/column order, respectively. Defaults to - * `SourceMapConsumer.GENERATED_ORDER`. - */ - SourceMapConsumer.prototype.eachMapping = - function SourceMapConsumer_eachMapping(aCallback, aContext, aOrder) { - var context = aContext || null; - var order = aOrder || SourceMapConsumer.GENERATED_ORDER; - - var mappings; - switch (order) { - case SourceMapConsumer.GENERATED_ORDER: - mappings = this._generatedMappings; - break; - case SourceMapConsumer.ORIGINAL_ORDER: - mappings = this._originalMappings; - break; - default: - throw new Error("Unknown order of iteration."); - } - - var sourceRoot = this.sourceRoot; - mappings.map(function (mapping) { - var source = mapping.source; - if (source && sourceRoot) { - source = util.join(sourceRoot, source); - } - return { - source: source, - generatedLine: mapping.generatedLine, - generatedColumn: mapping.generatedColumn, - originalLine: mapping.originalLine, - originalColumn: mapping.originalColumn, - name: mapping.name - }; - }).forEach(aCallback, context); - }; - - exports.SourceMapConsumer = SourceMapConsumer; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/binary-search', ['require', 'exports', 'module' , ], function(require, exports, module) { - - /** - * Recursive implementation of binary search. - * - * @param aLow Indices here and lower do not contain the needle. - * @param aHigh Indices here and higher do not contain the needle. - * @param aNeedle The element being searched for. - * @param aHaystack The non-empty array being searched. - * @param aCompare Function which takes two elements and returns -1, 0, or 1. - */ - function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare) { - // This function terminates when one of the following is true: - // - // 1. We find the exact element we are looking for. - // - // 2. We did not find the exact element, but we can return the next - // closest element that is less than that element. - // - // 3. We did not find the exact element, and there is no next-closest - // element which is less than the one we are searching for, so we - // return null. - var mid = Math.floor((aHigh - aLow) / 2) + aLow; - var cmp = aCompare(aNeedle, aHaystack[mid], true); - if (cmp === 0) { - // Found the element we are looking for. - return aHaystack[mid]; - } - else if (cmp > 0) { - // aHaystack[mid] is greater than our needle. - if (aHigh - mid > 1) { - // The element is in the upper half. - return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare); - } - // We did not find an exact match, return the next closest one - // (termination case 2). - return aHaystack[mid]; - } - else { - // aHaystack[mid] is less than our needle. - if (mid - aLow > 1) { - // The element is in the lower half. - return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare); - } - // The exact needle element was not found in this haystack. Determine if - // we are in termination case (2) or (3) and return the appropriate thing. - return aLow < 0 - ? null - : aHaystack[aLow]; - } - } - - /** - * This is an implementation of binary search which will always try and return - * the next lowest value checked if there is no exact hit. This is because - * mappings between original and generated line/col pairs are single points, - * and there is an implicit region between each of them, so a miss just means - * that you aren't on the very start of a region. - * - * @param aNeedle The element you are looking for. - * @param aHaystack The array that is being searched. - * @param aCompare A function which takes the needle and an element in the - * array and returns -1, 0, or 1 depending on whether the needle is less - * than, equal to, or greater than the element, respectively. - */ - exports.search = function search(aNeedle, aHaystack, aCompare) { - return aHaystack.length > 0 - ? recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack, aCompare) - : null; - }; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/source-node', ['require', 'exports', 'module' , 'source-map/source-map-generator', 'source-map/util'], function(require, exports, module) { - - var SourceMapGenerator = require('./source-map-generator').SourceMapGenerator; - var util = require('./util'); - - /** - * SourceNodes provide a way to abstract over interpolating/concatenating - * snippets of generated JavaScript source code while maintaining the line and - * column information associated with the original source code. - * - * @param aLine The original line number. - * @param aColumn The original column number. - * @param aSource The original source's filename. - * @param aChunks Optional. An array of strings which are snippets of - * generated JS, or other SourceNodes. - * @param aName The original identifier. - */ - function SourceNode(aLine, aColumn, aSource, aChunks, aName) { - this.children = []; - this.sourceContents = {}; - this.line = aLine === undefined ? null : aLine; - this.column = aColumn === undefined ? null : aColumn; - this.source = aSource === undefined ? null : aSource; - this.name = aName === undefined ? null : aName; - if (aChunks != null) this.add(aChunks); - } - - /** - * Creates a SourceNode from generated code and a SourceMapConsumer. - * - * @param aGeneratedCode The generated code - * @param aSourceMapConsumer The SourceMap for the generated code - */ - SourceNode.fromStringWithSourceMap = - function SourceNode_fromStringWithSourceMap(aGeneratedCode, aSourceMapConsumer) { - // The SourceNode we want to fill with the generated code - // and the SourceMap - var node = new SourceNode(); - - // The generated code - // Processed fragments are removed from this array. - var remainingLines = aGeneratedCode.split('\n'); - - // We need to remember the position of "remainingLines" - var lastGeneratedLine = 1, lastGeneratedColumn = 0; - - // The generate SourceNodes we need a code range. - // To extract it current and last mapping is used. - // Here we store the last mapping. - var lastMapping = null; - - aSourceMapConsumer.eachMapping(function (mapping) { - if (lastMapping === null) { - // We add the generated code until the first mapping - // to the SourceNode without any mapping. - // Each line is added as separate string. - while (lastGeneratedLine < mapping.generatedLine) { - node.add(remainingLines.shift() + "\n"); - lastGeneratedLine++; - } - if (lastGeneratedColumn < mapping.generatedColumn) { - var nextLine = remainingLines[0]; - node.add(nextLine.substr(0, mapping.generatedColumn)); - remainingLines[0] = nextLine.substr(mapping.generatedColumn); - lastGeneratedColumn = mapping.generatedColumn; - } - } else { - // We add the code from "lastMapping" to "mapping": - // First check if there is a new line in between. - if (lastGeneratedLine < mapping.generatedLine) { - var code = ""; - // Associate full lines with "lastMapping" - do { - code += remainingLines.shift() + "\n"; - lastGeneratedLine++; - lastGeneratedColumn = 0; - } while (lastGeneratedLine < mapping.generatedLine); - // When we reached the correct line, we add code until we - // reach the correct column too. - if (lastGeneratedColumn < mapping.generatedColumn) { - var nextLine = remainingLines[0]; - code += nextLine.substr(0, mapping.generatedColumn); - remainingLines[0] = nextLine.substr(mapping.generatedColumn); - lastGeneratedColumn = mapping.generatedColumn; - } - // Create the SourceNode. - addMappingWithCode(lastMapping, code); - } else { - // There is no new line in between. - // Associate the code between "lastGeneratedColumn" and - // "mapping.generatedColumn" with "lastMapping" - var nextLine = remainingLines[0]; - var code = nextLine.substr(0, mapping.generatedColumn - - lastGeneratedColumn); - remainingLines[0] = nextLine.substr(mapping.generatedColumn - - lastGeneratedColumn); - lastGeneratedColumn = mapping.generatedColumn; - addMappingWithCode(lastMapping, code); - } - } - lastMapping = mapping; - }, this); - // We have processed all mappings. - // Associate the remaining code in the current line with "lastMapping" - // and add the remaining lines without any mapping - addMappingWithCode(lastMapping, remainingLines.join("\n")); - - // Copy sourcesContent into SourceNode - aSourceMapConsumer.sources.forEach(function (sourceFile) { - var content = aSourceMapConsumer.sourceContentFor(sourceFile); - if (content) { - node.setSourceContent(sourceFile, content); - } - }); - - return node; - - function addMappingWithCode(mapping, code) { - if (mapping === null || mapping.source === undefined) { - node.add(code); - } else { - node.add(new SourceNode(mapping.originalLine, - mapping.originalColumn, - mapping.source, - code, - mapping.name)); - } - } - }; - - /** - * Add a chunk of generated JS to this source node. - * - * @param aChunk A string snippet of generated JS code, another instance of - * SourceNode, or an array where each member is one of those things. - */ - SourceNode.prototype.add = function SourceNode_add(aChunk) { - if (Array.isArray(aChunk)) { - aChunk.forEach(function (chunk) { - this.add(chunk); - }, this); - } - else if (aChunk instanceof SourceNode || typeof aChunk === "string") { - if (aChunk) { - this.children.push(aChunk); - } - } - else { - throw new TypeError( - "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk - ); - } - return this; - }; - - /** - * Add a chunk of generated JS to the beginning of this source node. - * - * @param aChunk A string snippet of generated JS code, another instance of - * SourceNode, or an array where each member is one of those things. - */ - SourceNode.prototype.prepend = function SourceNode_prepend(aChunk) { - if (Array.isArray(aChunk)) { - for (var i = aChunk.length-1; i >= 0; i--) { - this.prepend(aChunk[i]); - } - } - else if (aChunk instanceof SourceNode || typeof aChunk === "string") { - this.children.unshift(aChunk); - } - else { - throw new TypeError( - "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk - ); - } - return this; - }; - - /** - * Walk over the tree of JS snippets in this node and its children. The - * walking function is called once for each snippet of JS and is passed that - * snippet and the its original associated source's line/column location. - * - * @param aFn The traversal function. - */ - SourceNode.prototype.walk = function SourceNode_walk(aFn) { - var chunk; - for (var i = 0, len = this.children.length; i < len; i++) { - chunk = this.children[i]; - if (chunk instanceof SourceNode) { - chunk.walk(aFn); - } - else { - if (chunk !== '') { - aFn(chunk, { source: this.source, - line: this.line, - column: this.column, - name: this.name }); - } - } - } - }; - - /** - * Like `String.prototype.join` except for SourceNodes. Inserts `aStr` between - * each of `this.children`. - * - * @param aSep The separator. - */ - SourceNode.prototype.join = function SourceNode_join(aSep) { - var newChildren; - var i; - var len = this.children.length; - if (len > 0) { - newChildren = []; - for (i = 0; i < len-1; i++) { - newChildren.push(this.children[i]); - newChildren.push(aSep); - } - newChildren.push(this.children[i]); - this.children = newChildren; - } - return this; - }; - - /** - * Call String.prototype.replace on the very right-most source snippet. Useful - * for trimming whitespace from the end of a source node, etc. - * - * @param aPattern The pattern to replace. - * @param aReplacement The thing to replace the pattern with. - */ - SourceNode.prototype.replaceRight = function SourceNode_replaceRight(aPattern, aReplacement) { - var lastChild = this.children[this.children.length - 1]; - if (lastChild instanceof SourceNode) { - lastChild.replaceRight(aPattern, aReplacement); - } - else if (typeof lastChild === 'string') { - this.children[this.children.length - 1] = lastChild.replace(aPattern, aReplacement); - } - else { - this.children.push(''.replace(aPattern, aReplacement)); - } - return this; - }; - - /** - * Set the source content for a source file. This will be added to the SourceMapGenerator - * in the sourcesContent field. - * - * @param aSourceFile The filename of the source file - * @param aSourceContent The content of the source file - */ - SourceNode.prototype.setSourceContent = - function SourceNode_setSourceContent(aSourceFile, aSourceContent) { - this.sourceContents[util.toSetString(aSourceFile)] = aSourceContent; - }; - - /** - * Walk over the tree of SourceNodes. The walking function is called for each - * source file content and is passed the filename and source content. - * - * @param aFn The traversal function. - */ - SourceNode.prototype.walkSourceContents = - function SourceNode_walkSourceContents(aFn) { - for (var i = 0, len = this.children.length; i < len; i++) { - if (this.children[i] instanceof SourceNode) { - this.children[i].walkSourceContents(aFn); - } - } - - var sources = Object.keys(this.sourceContents); - for (var i = 0, len = sources.length; i < len; i++) { - aFn(util.fromSetString(sources[i]), this.sourceContents[sources[i]]); - } - }; - - /** - * Return the string representation of this source node. Walks over the tree - * and concatenates all the various snippets together to one string. - */ - SourceNode.prototype.toString = function SourceNode_toString() { - var str = ""; - this.walk(function (chunk) { - str += chunk; - }); - return str; - }; - - /** - * Returns the string representation of this source node along with a source - * map. - */ - SourceNode.prototype.toStringWithSourceMap = function SourceNode_toStringWithSourceMap(aArgs) { - var generated = { - code: "", - line: 1, - column: 0 - }; - var map = new SourceMapGenerator(aArgs); - var sourceMappingActive = false; - var lastOriginalSource = null; - var lastOriginalLine = null; - var lastOriginalColumn = null; - var lastOriginalName = null; - this.walk(function (chunk, original) { - generated.code += chunk; - if (original.source !== null - && original.line !== null - && original.column !== null) { - if(lastOriginalSource !== original.source - || lastOriginalLine !== original.line - || lastOriginalColumn !== original.column - || lastOriginalName !== original.name) { - map.addMapping({ - source: original.source, - original: { - line: original.line, - column: original.column - }, - generated: { - line: generated.line, - column: generated.column - }, - name: original.name - }); - } - lastOriginalSource = original.source; - lastOriginalLine = original.line; - lastOriginalColumn = original.column; - lastOriginalName = original.name; - sourceMappingActive = true; - } else if (sourceMappingActive) { - map.addMapping({ - generated: { - line: generated.line, - column: generated.column - } - }); - lastOriginalSource = null; - sourceMappingActive = false; - } - chunk.split('').forEach(function (ch) { - if (ch === '\n') { - generated.line++; - generated.column = 0; - } else { - generated.column++; - } - }); - }); - this.walkSourceContents(function (sourceFile, sourceContent) { - map.setSourceContent(sourceFile, sourceContent); - }); - - return { code: generated.code, map: map }; - }; - - exports.SourceNode = SourceNode; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/////////////////////////////////////////////////////////////////////////////// - -this.sourceMap = { - SourceMapConsumer: require('source-map/source-map-consumer').SourceMapConsumer, - SourceMapGenerator: require('source-map/source-map-generator').SourceMapGenerator, - SourceNode: require('source-map/source-node').SourceNode -}; - -// footer to wrap "source-map" module - return this.sourceMap; - }(); -})(); \ No newline at end of file diff --git a/awx/ui/static/lib/less/dist/less-rhino-1.7.3.js b/awx/ui/static/lib/less/dist/less-rhino-1.7.3.js deleted file mode 100644 index 75d08ff576..0000000000 --- a/awx/ui/static/lib/less/dist/less-rhino-1.7.3.js +++ /dev/null @@ -1,9317 +0,0 @@ -/* Less.js v1.7.3 RHINO | Copyright (c) 2009-2014, Alexis Sellier */ - -// -// Stub out `require` in rhino -// -function require(arg) { - var split = arg.split('/'); - var resultModule = split.length == 1 ? less.modules[split[0]] : less[split[1]]; - if (!resultModule) { - throw { message: "Cannot find module '" + arg + "'"}; - } - return resultModule; -} - - -if (typeof(window) === 'undefined') { less = {} } -else { less = window.less = {} } -tree = less.tree = {}; -less.mode = 'rhino'; - -(function() { - - console = function() { - var stdout = java.lang.System.out; - var stderr = java.lang.System.err; - - function doLog(out, type) { - return function() { - var args = java.lang.reflect.Array.newInstance(java.lang.Object, arguments.length - 1); - var format = arguments[0]; - var conversionIndex = 0; - // need to look for %d (integer) conversions because in Javascript all numbers are doubles - for (var i = 1; i < arguments.length; i++) { - var arg = arguments[i]; - if (conversionIndex != -1) { - conversionIndex = format.indexOf('%', conversionIndex); - } - if (conversionIndex >= 0 && conversionIndex < format.length) { - var conversion = format.charAt(conversionIndex + 1); - if (conversion === 'd' && typeof arg === 'number') { - arg = new java.lang.Integer(new java.lang.Double(arg).intValue()); - } - conversionIndex++; - } - args[i-1] = arg; - } - try { - out.println(type + java.lang.String.format(format, args)); - } catch(ex) { - stderr.println(ex); - } - } - } - return { - log: doLog(stdout, ''), - info: doLog(stdout, 'INFO: '), - error: doLog(stderr, 'ERROR: '), - warn: doLog(stderr, 'WARN: ') - }; - }(); - - less.modules = {}; - - less.modules.path = { - join: function() { - var parts = []; - for (i in arguments) { - parts = parts.concat(arguments[i].split(/\/|\\/)); - } - var result = []; - for (i in parts) { - var part = parts[i]; - if (part === '..' && result.length > 0 && result[result.length-1] !== '..') { - result.pop(); - } else if (part === '' && result.length > 0) { - // skip - } else if (part !== '.') { - if (part.slice(-1)==='\\' || part.slice(-1)==='/') { - part = part.slice(0, -1); - } - result.push(part); - } - } - return result.join('/'); - }, - dirname: function(p) { - var path = p.split('/'); - path.pop(); - return path.join('/'); - }, - basename: function(p, ext) { - var base = p.split('/').pop(); - if (ext) { - var index = base.lastIndexOf(ext); - if (base.length === index + ext.length) { - base = base.substr(0, index); - } - } - return base; - }, - extname: function(p) { - var index = p.lastIndexOf('.'); - return index > 0 ? p.substring(index) : ''; - } - }; - - less.modules.fs = { - readFileSync: function(name) { - // read a file into a byte array - var file = new java.io.File(name); - var stream = new java.io.FileInputStream(file); - var buffer = []; - var c; - while ((c = stream.read()) != -1) { - buffer.push(c); - } - stream.close(); - return { - length: buffer.length, - toString: function(enc) { - if (enc === 'base64') { - return encodeBase64Bytes(buffer); - } else if (enc) { - return java.lang.String["(byte[],java.lang.String)"](buffer, enc); - } else { - return java.lang.String["(byte[])"](buffer); - } - } - }; - } - }; - - less.encoder = { - encodeBase64: function(str) { - return encodeBase64String(str); - } - }; - - // --------------------------------------------------------------------------------------------- - // private helper functions - // --------------------------------------------------------------------------------------------- - - function encodeBase64Bytes(bytes) { - // requires at least a JRE Platform 6 (or JAXB 1.0 on the classpath) - return javax.xml.bind.DatatypeConverter.printBase64Binary(bytes) - } - function encodeBase64String(str) { - return encodeBase64Bytes(new java.lang.String(str).getBytes()); - } - -})(); - -var less, tree; - -// Node.js does not have a header file added which defines less -if (less === undefined) { - less = exports; - tree = require('./tree'); - less.mode = 'node'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `currentPos` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - saveStack = [], // holds state for backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // current chunk - currentPos, // index of current chunk, in `input` - parser, - parsers, - rootFilename = env && env.filename; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed around by reference. - if (!(env instanceof tree.parseEnv)) { - env = new tree.parseEnv(env); - } - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - contentsIgnoredChars: env.contentsIgnoredChars, // lines inserted, not in the original less - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, currentFileInfo, importOptions, callback) { - var parserImports = this; - this.queue.push(path); - - var fileParsedFunc = function (e, root, fullPath) { - parserImports.queue.splice(parserImports.queue.indexOf(path), 1); // Remove the path from the queue - - var importedPreviously = fullPath === rootFilename; - - parserImports.files[fullPath] = root; // Store the root - - if (e && !parserImports.error) { parserImports.error = e; } - - callback(e, root, importedPreviously, fullPath); - }; - - if (less.Parser.importer) { - less.Parser.importer(path, currentFileInfo, fileParsedFunc, env); - } else { - less.Parser.fileLoader(path, currentFileInfo, function(e, contents, fullPath, newFileInfo) { - if (e) {fileParsedFunc(e); return;} - - var newEnv = new tree.parseEnv(env); - - newEnv.currentFileInfo = newFileInfo; - newEnv.processImports = false; - newEnv.contents[fullPath] = contents; - - if (currentFileInfo.reference || importOptions.reference) { - newFileInfo.reference = true; - } - - if (importOptions.inline) { - fileParsedFunc(null, contents, fullPath); - } else { - new(less.Parser)(newEnv).parse(contents, function (e, root) { - fileParsedFunc(e, root, fullPath); - }); - } - }, env); - } - } - }; - - function save() { currentPos = i; saveStack.push( { current: current, i: i, j: j }); } - function restore() { var state = saveStack.pop(); current = state.current; currentPos = i = state.i; j = state.j; } - function forget() { saveStack.pop(); } - - function sync() { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - } - function isWhitespace(str, pos) { - var code = str.charCodeAt(pos | 0); - return (code <= 32) && (code === 32 || code === 10 || code === 9); - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var tokType = typeof tok, - match, length; - - // Either match a single character in the input, - // or match a regexp in the current chunk (`current`). - // - if (tokType === "string") { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - // regexp - sync (); - if (! (match = tok.exec(current))) { - return null; - } - - length = match[0].length; - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - - // Specialization of $(tok) - function $re(tok) { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - var m = tok.exec(current); - if (!m) { - return null; - } - - skipWhitespace(m[0].length); - if(typeof m === "string") { - return m; - } - - return m.length === 1 ? m[0] : m; - } - - var _$re = $re; - - // Specialization of $(tok) - function $char(tok) { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - curr = i - currentPos, - endIndex = i + current.length - curr, - mem = (i += length), - inp = input, - c; - - for (; i < endIndex; i++) { - c = inp.charCodeAt(i); - if (c > 32) { - break; - } - - if ((c !== 32) && (c !== 10) && (c !== 9) && (c !== 13)) { - break; - } - } - - current = current.slice(length + i - mem + curr); - currentPos = i; - - if (!current.length && (j < chunks.length - 1)) { - current = chunks[++j]; - skipWhitespace(0); // skip space at the beginning of a chunk - return true; // things changed - } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg) { - // some older browsers return typeof 'function' for RegExp - var result = (Object.prototype.toString.call(arg) === '[object Function]') ? arg.call(parsers) : $(arg); - if (result) { - return result; - } - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } - - // Specialization of expect() - function expectChar(arg, msg) { - if (input.charAt(i) === arg) { - skipWhitespace(1); - return arg; - } - error(msg || "expected '" + arg + "' got '" + input.charAt(i) + "'"); - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - return tok.test(current); - } - } - - // Specialization of peek() - function peekChar(tok) { - return input.charAt(i) === tok; - } - - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, inputStream) { - var n = index + 1, - line = null, - column = -1; - - while (--n >= 0 && inputStream.charAt(n) !== '\n') { - column++; - } - - if (typeof index === 'number') { - line = (inputStream.slice(0, index).match(/\n/g) || "").length; - } - - return { - line: line, - column: column - }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - callLine = e.call && getLocation(e.call, input).line, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = callLine + 1; - this.callExtract = lines[callLine]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // @param str A string containing 'less' markup - // @param callback call `callback` when done. - // @param [additionalData] An optional map which can contains vars - a map (key, value) of variables to apply - // - parse: function (str, callback, additionalData) { - var root, line, lines, error = null, globalVars, modifyVars, preText = ""; - - i = j = currentPos = furthest = 0; - - globalVars = (additionalData && additionalData.globalVars) ? less.Parser.serializeVars(additionalData.globalVars) + '\n' : ''; - modifyVars = (additionalData && additionalData.modifyVars) ? '\n' + less.Parser.serializeVars(additionalData.modifyVars) : ''; - - if (globalVars || (additionalData && additionalData.banner)) { - preText = ((additionalData && additionalData.banner) ? additionalData.banner : "") + globalVars; - parser.imports.contentsIgnoredChars[env.currentFileInfo.filename] = preText.length; - } - - str = str.replace(/\r\n/g, '\n'); - // Remove potential UTF Byte Order Mark - input = str = preText + str.replace(/^\uFEFF/, '') + modifyVars; - parser.imports.contents[env.currentFileInfo.filename] = str; - - // Split the input into chunks. - chunks = (function (input) { - var len = input.length, level = 0, parenLevel = 0, - lastOpening, lastOpeningParen, lastMultiComment, lastMultiCommentEndBrace, - chunks = [], emitFrom = 0, - parserCurrentIndex, currentChunkStartIndex, cc, cc2, matched; - - function fail(msg, index) { - error = new(LessError)({ - index: index || parserCurrentIndex, - type: 'Parse', - message: msg, - filename: env.currentFileInfo.filename - }, env); - } - - function emitChunk(force) { - var len = parserCurrentIndex - emitFrom; - if (((len < 512) && !force) || !len) { - return; - } - chunks.push(input.slice(emitFrom, parserCurrentIndex + 1)); - emitFrom = parserCurrentIndex + 1; - } - - for (parserCurrentIndex = 0; parserCurrentIndex < len; parserCurrentIndex++) { - cc = input.charCodeAt(parserCurrentIndex); - if (((cc >= 97) && (cc <= 122)) || (cc < 34)) { - // a-z or whitespace - continue; - } - - switch (cc) { - case 40: // ( - parenLevel++; - lastOpeningParen = parserCurrentIndex; - continue; - case 41: // ) - if (--parenLevel < 0) { - return fail("missing opening `(`"); - } - continue; - case 59: // ; - if (!parenLevel) { emitChunk(); } - continue; - case 123: // { - level++; - lastOpening = parserCurrentIndex; - continue; - case 125: // } - if (--level < 0) { - return fail("missing opening `{`"); - } - if (!level && !parenLevel) { emitChunk(); } - continue; - case 92: // \ - if (parserCurrentIndex < len - 1) { parserCurrentIndex++; continue; } - return fail("unescaped `\\`"); - case 34: - case 39: - case 96: // ", ' and ` - matched = 0; - currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 1; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 > 96) { continue; } - if (cc2 == cc) { matched = 1; break; } - if (cc2 == 92) { // \ - if (parserCurrentIndex == len - 1) { - return fail("unescaped `\\`"); - } - parserCurrentIndex++; - } - } - if (matched) { continue; } - return fail("unmatched `" + String.fromCharCode(cc) + "`", currentChunkStartIndex); - case 47: // /, check for comment - if (parenLevel || (parserCurrentIndex == len - 1)) { continue; } - cc2 = input.charCodeAt(parserCurrentIndex + 1); - if (cc2 == 47) { - // //, find lnfeed - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if ((cc2 <= 13) && ((cc2 == 10) || (cc2 == 13))) { break; } - } - } else if (cc2 == 42) { - // /*, find */ - lastMultiComment = currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len - 1; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 == 125) { lastMultiCommentEndBrace = parserCurrentIndex; } - if (cc2 != 42) { continue; } - if (input.charCodeAt(parserCurrentIndex + 1) == 47) { break; } - } - if (parserCurrentIndex == len - 1) { - return fail("missing closing `*/`", currentChunkStartIndex); - } - parserCurrentIndex++; - } - continue; - case 42: // *, check for unmatched */ - if ((parserCurrentIndex < len - 1) && (input.charCodeAt(parserCurrentIndex + 1) == 47)) { - return fail("unmatched `/*`"); - } - continue; - } - } - - if (level !== 0) { - if ((lastMultiComment > lastOpening) && (lastMultiCommentEndBrace > lastMultiComment)) { - return fail("missing closing `}` or `*/`", lastOpening); - } else { - return fail("missing closing `}`", lastOpening); - } - } else if (parenLevel !== 0) { - return fail("missing closing `)`", lastOpeningParen); - } - - emitChunk(true); - return chunks; - })(str); - - if (error) { - return callback(new(LessError)(error, env)); - } - - current = chunks[0]; - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)(null, this.parsers.primary()); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - return function (options, variables) { - options = options || {}; - var evaldRoot, - css, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, null, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var preEvalVisitors = [], - visitors = [ - new(tree.joinSelectorVisitor)(), - new(tree.processExtendsVisitor)(), - new(tree.toCSSVisitor)({compress: Boolean(options.compress)}) - ], i, root = this; - - if (options.plugins) { - for(i =0; i < options.plugins.length; i++) { - if (options.plugins[i].isPreEvalVisitor) { - preEvalVisitors.push(options.plugins[i]); - } else { - if (options.plugins[i].isPreVisitor) { - visitors.splice(0, 0, options.plugins[i]); - } else { - visitors.push(options.plugins[i]); - } - } - } - } - - for(i = 0; i < preEvalVisitors.length; i++) { - preEvalVisitors[i].run(root); - } - - evaldRoot = evaluate.call(root, evalEnv); - - for(i = 0; i < visitors.length; i++) { - visitors[i].run(evaldRoot); - } - - if (options.sourceMap) { - evaldRoot = new tree.sourceMapOutput( - { - contentsIgnoredCharsMap: parser.imports.contentsIgnoredChars, - writeSourceMap: options.writeSourceMap, - rootNode: evaldRoot, - contentsMap: parser.imports.contents, - sourceMapFilename: options.sourceMapFilename, - sourceMapURL: options.sourceMapURL, - outputFilename: options.sourceMapOutputFilename, - sourceMapBasepath: options.sourceMapBasepath, - sourceMapRootpath: options.sourceMapRootpath, - outputSourceFiles: options.outputSourceFiles, - sourceMapGenerator: options.sourceMapGenerator - }); - } - - css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits), - numPrecision: 8}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.cleancss && less.mode === 'node') { - var CleanCSS = require('clean-css'), - cleancssOptions = options.cleancssOptions || {}; - - if (cleancssOptions.keepSpecialComments === undefined) { - cleancssOptions.keepSpecialComments = "*"; - } - cleancssOptions.processImport = false; - cleancssOptions.noRebase = true; - if (cleancssOptions.noAdvanced === undefined) { - cleancssOptions.noAdvanced = true; - } - - return new CleanCSS(cleancssOptions).minify(css); - } else if (options.compress) { - return css.replace(/(^(\s)+)|((\s)+$)/g, ""); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - var loc = getLocation(i, input); - lines = input.split('\n'); - line = loc.line + 1; - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: loc.column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - return callback(e); - } - else { - return callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - return finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some Less code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: parsers = { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var mixin = this.mixin, $re = _$re, root = [], node; - - while (current) - { - node = this.extendRule() || mixin.definition() || this.rule() || this.ruleset() || - mixin.call() || this.comment() || this.rulesetCall() || this.directive(); - if (node) { - root.push(node); - } else { - if (!($re(/^[\s\n]+/) || $re(/^;+/))) { - break; - } - } - if (peekChar('}')) { - break; - } - } - - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') { return; } - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($re(/^\/\/.*/), true, i, env.currentFileInfo); - } - comment = $re(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/); - if (comment) { - return new(tree.Comment)(comment, false, i, env.currentFileInfo); - } - }, - - comments: function () { - var comment, comments = []; - - while(true) { - comment = this.comment(); - if (!comment) { - break; - } - comments.push(comment); - } - - return comments; - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; } - - if (e) { $char('~'); } - - str = $re(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/); - if (str) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - k = $re(/^%|^[_A-Za-z-][_A-Za-z0-9-]*/); - if (k) { - var color = tree.Color.fromKeyword(k); - if (color) { - return color; - } - return new(tree.Keyword)(k); - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(current); - if (!name) { return; } - - name = name[1]; - nameLC = name.toLowerCase(); - if (nameLC === 'url') { - return null; - } - - i += name.length; - - if (nameLC === 'alpha') { - alpha_ret = parsers.alpha(); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $char('('); // Parse the '(' and consume whitespace. - - args = this.arguments(); - - if (! $char(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (true) { - arg = this.assignment() || parsers.expression(); - if (!arg) { - break; - } - args.push(arg); - if (! $char(',')) { - break; - } - } - return args; - }, - literal: function () { - return this.dimension() || - this.color() || - this.quoted() || - this.unicodeDescriptor(); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - key = $re(/^\w+(?=\s?=)/i); - if (!key) { - return; - } - if (!$char('=')) { - return; - } - value = parsers.entity(); - if (value) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$re(/^url\(/)) { - return; - } - - value = this.quoted() || this.variable() || - $re(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expectChar(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $re(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var curly, index = i; - - if (input.charAt(i) === '@' && (curly = $re(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $re(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - var colorCandidateString = rgb.input.match(/^#([\w]+).*/); // strip colons, brackets, whitespaces and other characters that should not definitely be part of color string - colorCandidateString = colorCandidateString[1]; - if (!colorCandidateString.match(/^[A-Fa-f0-9]+$/)) { // verify if candidate consists only of allowed HEX characters - error("Invalid HEX color code"); - } - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) { - return; - } - - value = $re(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/); - if (value) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - ud = $re(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/); - if (ud) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '`') { return; } - if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) { - error("You are using JavaScript, which has been disabled."); - } - - if (e) { $char('~'); } - - str = $re(/^`([^`]*)`/); - if (str) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*:/))) { return name[1]; } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink(); - // - rulesetCall: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*\(\s*\)\s*;/))) { - return new tree.RulesetCall(name[1]); - } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList, extend; - - if (!(isRule ? $re(/^&:extend\(/) : $re(/^:extend\(/))) { return; } - - do { - option = null; - elements = null; - while (! (option = $re(/^(all)(?=\s*(\)|,))/))) { - e = this.element(); - if (!e) { break; } - if (elements) { elements.push(e); } else { elements = [ e ]; } - } - - option = option && option[1]; - - extend = new(tree.Extend)(new(tree.Selector)(elements), option, index); - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - - } while($char(",")); - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var s = input.charAt(i), important = false, index = i, elemIndex, - elements, elem, e, c, args; - - if (s !== '.' && s !== '#') { return; } - - save(); // stop us absorbing part of an invalid selector - - while (true) { - elemIndex = i; - e = $re(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/); - if (!e) { - break; - } - elem = new(tree.Element)(c, e, elemIndex, env.currentFileInfo); - if (elements) { elements.push(elem); } else { elements = [ elem ]; } - c = $char('>'); - } - - if (elements) { - if ($char('(')) { - args = this.args(true).args; - expectChar(')'); - } - - if (parsers.important()) { - important = true; - } - - if (parsers.end()) { - forget(); - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - } - - restore(); - }, - args: function (isCall) { - var parsers = parser.parsers, entities = parsers.entities, - returner = { args:null, variadic: false }, - expressions = [], argsSemiColon = [], argsComma = [], - isSemiColonSeperated, expressionContainsNamed, name, nameLoop, value, arg; - - save(); - - while (true) { - if (isCall) { - arg = parsers.detachedRuleset() || parsers.expression(); - } else { - parsers.comments(); - if (input.charAt(i) === '.' && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = entities.variable() || entities.literal() || entities.keyword(); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value && arg.value.length == 1) { - val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($char(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - - // we do not support setting a ruleset as a default variable - it doesn't make sense - // However if we do want to add it, there is nothing blocking it, just don't error - // and remove isCall dependency below - value = (isCall && parsers.detachedRuleset()) || parsers.expression(); - - if (!value) { - if (isCall) { - error("could not understand value for named argument"); - } else { - restore(); - returner.args = []; - return returner; - } - } - nameLoop = (name = val.name); - } else if (!isCall && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($char(',')) { - continue; - } - - if ($char(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - forget(); - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) { - return; - } - - save(); - - match = $re(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/); - if (match) { - name = match[1]; - - var argInfo = this.args(false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. - // also - // .mixincall(@a: {rule: set;}); - // so we have to be nice and restore - if (!$char(')')) { - furthest = i; - restore(); - return; - } - - parsers.comments(); - - if ($re(/^when/)) { // Guard - cond = expect(parsers.conditions, 'expected condition'); - } - - ruleset = parsers.block(); - - if (ruleset) { - forget(); - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } else { - forget(); - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - var entities = this.entities; - - return entities.literal() || entities.variable() || entities.url() || - entities.call() || entities.keyword() || entities.javascript() || - this.comment(); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $char(';') || peekChar('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $re(/^\(opacity=/i)) { return; } - value = $re(/^\d+/) || this.entities.variable(); - if (value) { - expectChar(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, c, v, index = i; - - c = this.combinator(); - - e = $re(/^(?:\d+\.\d+|\d+)%/) || $re(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $char('*') || $char('&') || this.attribute() || $re(/^\([^()@]+\)/) || $re(/^[\.#](?=@)/) || - this.entities.variableCurly(); - - if (! e) { - save(); - if ($char('(')) { - if ((v = this.selector()) && $char(')')) { - e = new(tree.Paren)(v); - forget(); - } else { - restore(); - } - } else { - forget(); - } - } - - if (e) { return new(tree.Element)(c, e, index, env.currentFileInfo); } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|' || c === '^') { - i++; - if (input.charAt(i) === '^') { - c = '^^'; - i++; - } - while (isWhitespace(input, i)) { i++; } - return new(tree.Combinator)(c); - } else if (isWhitespace(input, i - 1)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - // - // A CSS selector (see selector below) - // with less extensions e.g. the ability to extend and guard - // - lessSelector: function () { - return this.selector(true); - }, - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function (isLess) { - var index = i, $re = _$re, elements, extendList, c, e, extend, when, condition; - - while ((isLess && (extend = this.extend())) || (isLess && (when = $re(/^when/))) || (e = this.element())) { - if (when) { - condition = expect(this.conditions, 'expected condition'); - } else if (condition) { - error("CSS guard can only be used at the end of selector"); - } else if (extend) { - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - } else { - if (extendList) { error("Extend can only be used at the end of selector"); } - c = input.charAt(i); - if (elements) { elements.push(e); } else { elements = [ e ]; } - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { - break; - } - } - - if (elements) { return new(tree.Selector)(elements, extendList, condition, index, env.currentFileInfo); } - if (extendList) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - if (! $char('[')) { return; } - - var entities = this.entities, - key, val, op; - - if (!(key = entities.variableCurly())) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - op = $re(/^[|~*$^]?=/); - if (op) { - val = entities.quoted() || $re(/^[0-9]+%/) || $re(/^[\w-]+/) || entities.variableCurly(); - } - - expectChar(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($char('{') && (content = this.primary()) && $char('}')) { - return content; - } - }, - - blockRuleset: function() { - var block = this.block(); - - if (block) { - block = new tree.Ruleset(null, block); - } - return block; - }, - - detachedRuleset: function() { - var blockRuleset = this.blockRuleset(); - if (blockRuleset) { - return new tree.DetachedRuleset(blockRuleset); - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors, s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - while (true) { - s = this.lessSelector(); - if (!s) { - break; - } - if (selectors) { selectors.push(s); } else { selectors = [ s ]; } - this.comments(); - if (s.condition && selectors.length > 1) { - error("Guards are only currently allowed on a single selector."); - } - if (! $char(',')) { break; } - if (s.condition) { - error("Guards are only currently allowed on a single selector."); - } - this.comments(); - } - - if (selectors && (rules = this.block())) { - forget(); - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) { - ruleset.debugInfo = debugInfo; - } - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, startOfRule = i, c = input.charAt(startOfRule), important, merge, isVariable; - - if (c === '.' || c === '#' || c === '&') { return; } - - save(); - - name = this.variable() || this.ruleProperty(); - if (name) { - isVariable = typeof name === "string"; - - if (isVariable) { - value = this.detachedRuleset(); - } - - if (!value) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || isVariable) ? - (this.value() || this.anonymousValue()) : - (this.anonymousValue() || this.value()); - - important = this.important(); - - // a name returned by this.ruleProperty() is always an array of the form: - // [string-1, ..., string-n, ""] or [string-1, ..., string-n, "+"] - // where each item is a tree.Keyword or tree.Variable - merge = !isVariable && name.pop().value; - } - - if (value && this.end()) { - forget(); - return new (tree.Rule)(name, value, important, merge, startOfRule, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } else { - forget(); - } - }, - anonymousValue: function () { - var match; - match = /^([^@+\/'"*`(;{}-]*);/.exec(current); - if (match) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environemnt, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - save(); - - var dir = $re(/^@import?\s+/); - - var options = (dir ? this.importOptions() : null) || {}; - - if (dir && (path = this.entities.quoted() || this.entities.url())) { - features = this.mediaFeatures(); - if ($char(';')) { - forget(); - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - } - - restore(); - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $char('(')) { return null; } - do { - o = this.importOption(); - if (o) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $char(',')) { break; } - } - } while (o); - expectChar(')'); - return options; - }, - - importOption: function() { - var opt = $re(/^(less|css|multiple|once|inline|reference)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var entities = this.entities, nodes = [], e, p; - do { - e = entities.keyword() || entities.variable(); - if (e) { - nodes.push(e); - } else if ($char('(')) { - p = this.property(); - e = this.value(); - if ($char(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null; } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var entities = this.entities, features = [], e; - do { - e = this.mediaFeature(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } else { - e = entities.variable(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - if ($re(/^@media/)) { - features = this.mediaFeatures(); - - rules = this.block(); - if (rules) { - media = new(tree.Media)(rules, features, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - media.debugInfo = debugInfo; - } - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var index = i, name, value, rules, nonVendorSpecificName, - hasIdentifier, hasExpression, hasUnknown, hasBlock = true; - - if (input.charAt(i) !== '@') { return; } - - value = this['import']() || this.media(); - if (value) { - return value; - } - - save(); - - name = $re(/^@[a-z-]+/); - - if (!name) { return; } - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - /* - case "@font-face": - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - */ - case "@charset": - hasIdentifier = true; - hasBlock = false; - break; - case "@namespace": - hasExpression = true; - hasBlock = false; - break; - case "@keyframes": - hasIdentifier = true; - break; - case "@host": - case "@page": - case "@document": - case "@supports": - hasUnknown = true; - break; - } - - if (hasIdentifier) { - value = this.entity(); - if (!value) { - error("expected " + name + " identifier"); - } - } else if (hasExpression) { - value = this.expression(); - if (!value) { - error("expected " + name + " expression"); - } - } else if (hasUnknown) { - value = ($re(/^[^{;]+/) || '').trim(); - if (value) { - value = new(tree.Anonymous)(value); - } - } - - if (hasBlock) { - rules = this.blockRuleset(); - } - - if (rules || (!hasBlock && value && $char(';'))) { - forget(); - return new(tree.Directive)(name, value, rules, index, env.currentFileInfo, - env.dumpLineNumbers ? getDebugInfo(index, input, env) : null); - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = []; - - do { - e = this.expression(); - if (e) { - expressions.push(e); - if (! $char(',')) { break; } - } - } while(e); - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $re(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($char('(')) { - a = this.addition(); - if (a) { - e = new(tree.Expression)([a]); - expectChar(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced; - m = this.operand(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - if (peek(/^\/[*\/]/)) { - break; - } - - save(); - - op = $char('/') || $char('*'); - - if (!op) { forget(); break; } - - a = this.operand(); - - if (!a) { restore(); break; } - forget(); - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - m = this.multiplication(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - op = $re(/^[-+]\s+/) || (!isSpaced && ($char('+') || $char('-'))); - if (!op) { - break; - } - a = this.multiplication(); - if (!a) { - break; - } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - a = this.condition(); - if (a) { - while (true) { - if (!peek(/^,\s*(not\s*)?\(/) || !$char(',')) { - break; - } - b = this.condition(); - if (!b) { - break; - } - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var entities = this.entities, index = i, negate = false, - a, b, c, op; - - if ($re(/^not/)) { negate = true; } - expectChar('('); - a = this.addition() || entities.keyword() || entities.quoted(); - if (a) { - op = $re(/^(?:>=|<=|=<|[<=>])/); - if (op) { - b = this.addition() || entities.keyword() || entities.quoted(); - if (b) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expectChar(')'); - return $re(/^and/) ? new(tree.Condition)('and', c, this.condition()) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var entities = this.entities, - p = input.charAt(i + 1), negate; - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $char('-'); } - var o = this.sub() || entities.dimension() || - entities.color() || entities.variable() || - entities.call(); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var entities = [], e, delim; - - do { - e = this.addition() || this.entity(); - if (e) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/)) { - delim = $char('/'); - if (delim) { - entities.push(new(tree.Anonymous)(delim)); - } - } - } - } while (e); - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name = $re(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/); - if (name) { - return name[1]; - } - }, - ruleProperty: function () { - var c = current, name = [], index = [], length = 0, s, k; - - function match(re) { - var a = re.exec(c); - if (a) { - index.push(i + length); - length += a[0].length; - c = c.slice(a[1].length); - return name.push(a[1]); - } - } - - match(/^(\*?)/); - while (match(/^((?:[\w-]+)|(?:@\{[\w-]+\}))/)); // ! - if ((name.length > 1) && match(/^\s*((?:\+_|\+)?)\s*:/)) { - // at last, we have the complete match now. move forward, - // convert name particles to tree objects and return: - skipWhitespace(length); - if (name[0] === '') { - name.shift(); - index.shift(); - } - for (k = 0; k < name.length; k++) { - s = name[k]; - name[k] = (s.charAt(0) !== '@') - ? new(tree.Keyword)(s) - : new(tree.Variable)('@' + s.slice(2, -1), - index[k], env.currentFileInfo); - } - return name; - } - } - } - }; - return parser; -}; -less.Parser.serializeVars = function(vars) { - var s = ''; - - for (var name in vars) { - if (Object.hasOwnProperty.call(vars, name)) { - var value = vars[name]; - s += ((name[0] === '@') ? '' : '@') + name +': '+ value + - ((('' + value).slice(-1) === ';') ? '' : ';'); - } - } - - return s; -}; - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 255); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; } - else if (h * 2 < 1) { return m2; } - else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; } - else { return m1; } - } - - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(color.toHSL().h); - }, - saturation: function (color) { - return new(tree.Dimension)(color.toHSL().s * 100, '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(color.toHSL().l * 100, '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(color.toHSV().h); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(color.toHSV().s * 100, '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(color.toHSV().v * 100, '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(color.luma() * color.alpha * 100, '%'); - }, - luminance: function (color) { - var luminance = - (0.2126 * color.rgb[0] / 255) - + (0.7152 * color.rgb[1] / 255) - + (0.0722 * color.rgb[2] / 255); - - return new(tree.Dimension)(luminance * color.alpha * 100, '%'); - }, - saturate: function (color, amount) { - // filter: saturate(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if (color.luma() < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str.value); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - replace: function (string, pattern, replacement, flags) { - var result = string.value; - - result = result.replace(new RegExp(pattern.value, flags ? flags.value : ''), replacement.value); - return new(tree.Quoted)(string.quote || '', result, string.escaped); - }, - '%': function (string /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - result = string.value; - - for (var i = 0; i < args.length; i++) { - /*jshint loopfunc:true */ - result = result.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - result = result.replace(/%%/g, '%'); - return new(tree.Quoted)(string.quote || '', result, string.escaped); - }, - unit: function (val, unit) { - if(!(val instanceof tree.Dimension)) { - throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") }; - } - if (unit) { - if (unit instanceof tree.Keyword) { - unit = unit.value; - } else { - unit = unit.toCSS(); - } - } else { - unit = ""; - } - return new(tree.Dimension)(val.value, unit); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return _math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _minmax: function (isMin, args) { - args = Array.prototype.slice.call(args); - switch(args.length) { - case 0: throw { type: "Argument", message: "one or more arguments required" }; - } - var i, j, current, currentUnified, referenceUnified, unit, unitStatic, unitClone, - order = [], // elems only contains original argument values. - values = {}; // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - for (i = 0; i < args.length; i++) { - current = args[i]; - if (!(current instanceof tree.Dimension)) { - if(Array.isArray(args[i].value)) { - Array.prototype.push.apply(args, Array.prototype.slice.call(args[i].value)); - } - continue; - } - currentUnified = current.unit.toString() === "" && unitClone !== undefined ? new(tree.Dimension)(current.value, unitClone).unify() : current.unify(); - unit = currentUnified.unit.toString() === "" && unitStatic !== undefined ? unitStatic : currentUnified.unit.toString(); - unitStatic = unit !== "" && unitStatic === undefined || unit !== "" && order[0].unify().unit.toString() === "" ? unit : unitStatic; - unitClone = unit !== "" && unitClone === undefined ? current.unit.toString() : unitClone; - j = values[""] !== undefined && unit !== "" && unit === unitStatic ? values[""] : values[unit]; - if (j === undefined) { - if(unitStatic !== undefined && unit !== unitStatic) { - throw{ type: "Argument", message: "incompatible types" }; - } - values[unit] = order.length; - order.push(current); - continue; - } - referenceUnified = order[j].unit.toString() === "" && unitClone !== undefined ? new(tree.Dimension)(order[j].value, unitClone).unify() : order[j].unify(); - if ( isMin && currentUnified.value < referenceUnified.value || - !isMin && currentUnified.value > referenceUnified.value) { - order[j] = current; - } - } - if (order.length == 1) { - return order[0]; - } - args = order.map(function (a) { return a.toCSS(this.env); }).join(this.env.compress ? "," : ", "); - return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")"); - }, - min: function () { - return this._minmax(true, arguments); - }, - max: function () { - return this._minmax(false, arguments); - }, - "get-unit": function (n) { - return new(tree.Anonymous)(n.unit); - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - var colorCandidate = n.value, - returnColor; - returnColor = tree.Color.fromKeyword(colorCandidate); - if (returnColor) { - return returnColor; - } - if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) { - return new(tree.Color)(colorCandidate.slice(1)); - } - throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" }; - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - return Array.isArray(values.value) - ? values.value[index] : Array(values)[index]; - }, - length: function(values) { - var n = Array.isArray(values.value) ? values.value.length : 1; - return new tree.Dimension(n); - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require('./fs'), - path = require('path'), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) { mimetype += ';base64'; } - } - else { - useBase64 = /;base64$/.test(mimetype); - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "\"data:" + mimetype + ',' + buf + "\""; - return new(tree.URL)(new(tree.Anonymous)(uri)); - }, - - "svg-gradient": function(direction) { - - function throwArgumentDescriptor() { - throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" }; - } - - if (arguments.length < 3) { - throwArgumentDescriptor(); - } - var stops = Array.prototype.slice.call(arguments, 1), - gradientDirectionSvg, - gradientType = "linear", - rectangleDimension = 'x="0" y="0" width="1" height="1"', - useBase64 = true, - renderEnv = {compress: false}, - returner, - directionValue = direction.toCSS(renderEnv), - i, color, position, positionValue, alpha; - - switch (directionValue) { - case "to bottom": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - gradientType = "radial"; - gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" }; - } - returner = '' + - '' + - '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>'; - - for (i = 0; i < stops.length; i+= 1) { - if (stops[i].value) { - color = stops[i].value[0]; - position = stops[i].value[1]; - } else { - color = stops[i]; - position = undefined; - } - - if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) { - throwArgumentDescriptor(); - } - positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%"; - alpha = color.alpha; - returner += ''; - } - returner += '' + - ''; - - if (useBase64) { - try { - returner = require('./encoder').encodeBase64(returner); // TODO browser implementation - } catch(e) { - useBase64 = false; - } - } - - returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'"; - return new(tree.URL)(new(tree.Anonymous)(returner)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -// Math - -var mathFunctions = { - // name, unit - ceil: null, - floor: null, - sqrt: null, - abs: null, - tan: "", - sin: "", - cos: "", - atan: "rad", - asin: "rad", - acos: "rad" -}; - -function _math(fn, unit, n) { - if (!(n instanceof tree.Dimension)) { - throw { type: "Argument", message: "argument must be a number" }; - } - if (unit == null) { - unit = n.unit; - } else { - n = n.unify(); - } - return new(tree.Dimension)(fn(parseFloat(n.value)), unit); -} - -// ~ End of Math - -// Color Blending -// ref: http://www.w3.org/TR/compositing-1 - -function colorBlend(mode, color1, color2) { - var ab = color1.alpha, cb, // backdrop - as = color2.alpha, cs, // source - ar, cr, r = []; // result - - ar = as + ab * (1 - as); - for (var i = 0; i < 3; i++) { - cb = color1.rgb[i] / 255; - cs = color2.rgb[i] / 255; - cr = mode(cb, cs); - if (ar) { - cr = (as * cs + ab * (cb - - as * (cb + cs - cr))) / ar; - } - r[i] = cr * 255; - } - - return new(tree.Color)(r, ar); -} - -var colorBlendMode = { - multiply: function(cb, cs) { - return cb * cs; - }, - screen: function(cb, cs) { - return cb + cs - cb * cs; - }, - overlay: function(cb, cs) { - cb *= 2; - return (cb <= 1) - ? colorBlendMode.multiply(cb, cs) - : colorBlendMode.screen(cb - 1, cs); - }, - softlight: function(cb, cs) { - var d = 1, e = cb; - if (cs > 0.5) { - e = 1; - d = (cb > 0.25) ? Math.sqrt(cb) - : ((16 * cb - 12) * cb + 4) * cb; - } - return cb - (1 - 2 * cs) * e * (d - cb); - }, - hardlight: function(cb, cs) { - return colorBlendMode.overlay(cs, cb); - }, - difference: function(cb, cs) { - return Math.abs(cb - cs); - }, - exclusion: function(cb, cs) { - return cb + cs - 2 * cb * cs; - }, - - // non-w3c functions: - average: function(cb, cs) { - return (cb + cs) / 2; - }, - negation: function(cb, cs) { - return 1 - Math.abs(cb + cs - 1); - } -}; - -// ~ End of Color Blending - -tree.defaultFunc = { - eval: function () { - var v = this.value_, e = this.error_; - if (e) { - throw e; - } - if (v != null) { - return v ? tree.True : tree.False; - } - }, - value: function (v) { - this.value_ = v; - }, - error: function (e) { - this.error_ = e; - }, - reset: function () { - this.value_ = this.error_ = null; - } -}; - -function initFunctions() { - var f, tf = tree.functions; - - // math - for (f in mathFunctions) { - if (mathFunctions.hasOwnProperty(f)) { - tf[f] = _math.bind(null, Math[f], mathFunctions[f]); - } - } - - // color blending - for (f in colorBlendMode) { - if (colorBlendMode.hasOwnProperty(f)) { - tf[f] = colorBlend.bind(null, colorBlendMode[f]); - } - } - - // default - f = tree.defaultFunc; - tf["default"] = f.eval.bind(f); - -} initFunctions(); - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.fround = function(env, value) { - var p = env && env.numPrecision; - //add "epsilon" to ensure numbers like 1.000000005 (represented as 1.000000004999....) are properly rounded... - return (p == null) ? value : Number((value + 2e-16).toFixed(p)); -}; - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); - -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); - -(function (tree) { - -tree.debugInfo = function(env, ctx, lineSeperator) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:\/\\])/g, function (a) { - if (a == '\\') { - a = '\/'; - } - return '\\' + a; - }) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - r = fun.call(obj, obj[i]); - if (r) { return r; } - } - return null; -}; - -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(); }).join(', ') + ']'; - } else { - return obj.toCSS(); - } -}; - -tree.toCSS = function (env) { - var strs = []; - this.genCSS(env, { - add: function(chunk, fileInfo, index) { - strs.push(chunk); - }, - isEmpty: function () { - return strs.length === 0; - } - }); - return strs.join(''); -}; - -tree.outputRuleset = function (env, output, rules) { - var ruleCnt = rules.length, i; - env.tabLevel = (env.tabLevel | 0) + 1; - - // Compressed - if (env.compress) { - output.add('{'); - for (i = 0; i < ruleCnt; i++) { - rules[i].genCSS(env, output); - } - output.add('}'); - env.tabLevel--; - return; - } - - // Non-compressed - var tabSetStr = '\n' + Array(env.tabLevel).join(" "), tabRuleStr = tabSetStr + " "; - if (!ruleCnt) { - output.add(" {" + tabSetStr + '}'); - } else { - output.add(" {" + tabRuleStr); - rules[0].genCSS(env, output); - for (i = 1; i < ruleCnt; i++) { - output.add(tabRuleStr); - rules[i].genCSS(env, output); - } - output.add(tabSetStr + '}'); - } - - env.tabLevel--; -}; - -})(require('./tree')); - -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } - return this; - }, - genCSS: function (env, output) { - output.add("alpha(opacity="); - - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - - output.add(")"); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Anonymous = function (value, index, currentFileInfo, mapLines) { - this.value = value; - this.index = index; - this.mapLines = mapLines; - this.currentFileInfo = currentFileInfo; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - eval: function () { - return new tree.Anonymous(this.value, this.index, this.currentFileInfo, this.mapLines); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - }, - genCSS: function (env, output) { - output.add(this.value, this.currentFileInfo, this.index, this.mapLines); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - }, - genCSS: function (env, output) { - output.add(this.key + '='); - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - if (this.args) { - this.args = visitor.visitArray(this.args); - } - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - return new tree.Call(this.name, args, this.index, this.currentFileInfo); - }, - - genCSS: function (env, output) { - output.add(this.name + "(", this.currentFileInfo, this.index); - - for(var i = 0; i < this.args.length; i++) { - this.args[i].genCSS(env, output); - if (i + 1 < this.args.length) { - output.add(", "); - } - } - - output.add(")"); - }, - - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; - -var transparentKeyword = "transparent"; - -tree.Color.prototype = { - type: "Color", - eval: function () { return this; }, - luma: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255; - - r = (r <= 0.03928) ? r / 12.92 : Math.pow(((r + 0.055) / 1.055), 2.4); - g = (g <= 0.03928) ? g / 12.92 : Math.pow(((g + 0.055) / 1.055), 2.4); - b = (b <= 0.03928) ? b / 12.92 : Math.pow(((b + 0.055) / 1.055), 2.4); - - return 0.2126 * r + 0.7152 * g + 0.0722 * b; - }, - - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress, - alpha = tree.fround(env, this.alpha); - - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - if (alpha < 1) { - if (alpha === 0 && this.isTransparentKeyword) { - return transparentKeyword; - } - return "rgba(" + this.rgb.map(function (c) { - return clamp(Math.round(c), 255); - }).concat(clamp(alpha, 1)) - .join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.toRGB(); - - if (compress) { - var splitcolor = color.split(''); - - // Convert color to short format - if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) { - color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5]; - } - } - - return color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var rgb = []; - var alpha = this.alpha * (1 - other.alpha) + other.alpha; - for (var c = 0; c < 3; c++) { - rgb[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(rgb, alpha); - }, - - toRGB: function () { - return toHex(this.rgb); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - return toHex([this.alpha * 255].concat(this.rgb)); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - -tree.Color.fromKeyword = function(keyword) { - keyword = keyword.toLowerCase(); - - if (tree.colors.hasOwnProperty(keyword)) { - // detect named color - return new(tree.Color)(tree.colors[keyword].slice(1)); - } - if (keyword === transparentKeyword) { - var transparent = new(tree.Color)([0, 0, 0], 0); - transparent.isTransparentKeyword = true; - return transparent; - } -}; - -function toHex(v) { - return '#' + v.map(function (c) { - c = clamp(Math.round(c), 255); - return (c < 16 ? '0' : '') + c.toString(16); - }).join(''); -} - -function clamp(v, max) { - return Math.min(Math.max(v, 0), max); -} - -})(require('../tree')); - -(function (tree) { - -tree.Comment = function (value, silent, index, currentFileInfo) { - this.value = value; - this.silent = !!silent; - this.currentFileInfo = currentFileInfo; -}; -tree.Comment.prototype = { - type: "Comment", - genCSS: function (env, output) { - if (this.debugInfo) { - output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index); - } - output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n - }, - toCSS: tree.toCSS, - isSilent: function(env) { - var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced), - isCompressed = env.compress && !this.value.match(/^\/\*!/); - return this.silent || isReference || isCompressed; - }, - eval: function () { return this; }, - markReferenced: function () { - this.isReferenced = true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<' || op === '<='; - case 0: return op === '=' || op === '>=' || op === '=<' || op === '<='; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.DetachedRuleset = function (ruleset, frames) { - this.ruleset = ruleset; - this.frames = frames; -}; -tree.DetachedRuleset.prototype = { - type: "DetachedRuleset", - accept: function (visitor) { - this.ruleset = visitor.visit(this.ruleset); - }, - eval: function (env) { - var frames = this.frames || env.frames.slice(0); - return new tree.DetachedRuleset(this.ruleset, frames); - }, - callEval: function (env) { - return this.ruleset.eval(this.frames ? new(tree.evalEnv)(env, this.frames.concat(env.frames)) : env); - } -}; -})(require('../tree')); - -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - genCSS: function (env, output) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = tree.fround(env, this.value), - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && this.unit.isLength()) { - output.add(strValue); - return; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - output.add(strValue); - this.unit.genCSS(env, output); - }, - toCSS: tree.toCSS, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - /*jshint noempty:false */ - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a, b, - aValue, bValue; - - if (this.unit.isEmpty() || other.unit.isEmpty()) { - a = this; - b = other; - } else { - a = this.unify(); - b = other.unify(); - if (a.unit.compare(b.unit) !== 0) { - return -1; - } - } - aValue = a.value; - bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'px', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, targetUnit, derivedConversions = {}, applyUnit; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - applyUnit = function (atomicUnit, denominator) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(applyUnit); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'px': 0.0254 / 96, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - genCSS: function (env, output) { - if (this.numerator.length >= 1) { - output.add(this.numerator[0]); - } else - if (this.denominator.length >= 1) { - output.add(this.denominator[0]); - } else - if ((!env || !env.strictUnits) && this.backupUnit) { - output.add(this.backupUnit); - } - }, - toCSS: tree.toCSS, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isLength: function () { - return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/)); - }, - - isEmpty: function () { - return this.numerator.length === 0 && this.denominator.length === 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length === 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, result = {}, mapUnit; - - mapUnit = function (atomicUnit) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }; - - for (var groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(mapUnit); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Directive = function (name, value, rules, index, currentFileInfo, debugInfo) { - this.name = name; - this.value = value; - if (rules) { - this.rules = rules; - this.rules.allowImports = true; - } - this.index = index; - this.currentFileInfo = currentFileInfo; - this.debugInfo = debugInfo; -}; - -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - var value = this.value, rules = this.rules; - if (rules) { - rules = visitor.visit(rules); - } - if (value) { - value = visitor.visit(value); - } - }, - genCSS: function (env, output) { - var value = this.value, rules = this.rules; - output.add(this.name, this.currentFileInfo, this.index); - if (value) { - output.add(' '); - value.genCSS(env, output); - } - if (rules) { - tree.outputRuleset(env, output, [rules]); - } else { - output.add(';'); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var value = this.value, rules = this.rules; - if (value) { - value = value.eval(env); - } - if (rules) { - rules = rules.eval(env); - rules.root = true; - } - return new(tree.Directive)(this.name, value, rules, - this.index, this.currentFileInfo, this.debugInfo); - }, - variable: function (name) { if (this.rules) return tree.Ruleset.prototype.variable.call(this.rules, name); }, - find: function () { if (this.rules) return tree.Ruleset.prototype.find.apply(this.rules, arguments); }, - rulesets: function () { if (this.rules) return tree.Ruleset.prototype.rulesets.apply(this.rules); }, - markReferenced: function () { - var i, rules; - this.isReferenced = true; - if (this.rules) { - rules = this.rules.rules; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Element = function (combinator, value, index, currentFileInfo) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - var value = this.value; - this.combinator = visitor.visit(this.combinator); - if (typeof value === "object") { - this.value = visitor.visit(value); - } - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index, - this.currentFileInfo); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env), this.currentFileInfo, this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value === '' && this.combinator.value.charAt(0) === '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - _outputMap: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : ' + ', - '~' : ' ~ ', - '>' : ' > ', - '|' : '|', - '^' : ' ^ ', - '^^' : ' ^^ ' - }, - _outputMapCompressed: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : '+', - '~' : '~', - '>' : '>', - '|' : '|', - '^' : '^', - '^^' : '^^' - }, - genCSS: function (env, output) { - output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - genCSS: function (env, output) { - for(var i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i + 1 < this.value.length) { - output.add(" "); - } - } - }, - toCSS: tree.toCSS, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - this.object_id = tree.Extend.next_id++; - this.parent_ids = [this.object_id]; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; -tree.Extend.next_id = 0; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i, - selectorElements; - - for(i = 0; i < selectors.length; i++) { - selectorElements = selectors[i].elements; - // duplicate the logic in genCSS function inside the selector node. - // future TODO - move both logics into the selector joiner visitor - if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") { - selectorElements[0].combinator.value = ' '; - } - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); - -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined || this.options.inline) { - this.css = !this.options.less || this.options.inline; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - this.path = visitor.visit(this.path); - if (!this.options.inline && this.root) { - this.root = visitor.visit(this.root); - } - }, - genCSS: function (env, output) { - if (this.css) { - output.add("@import ", this.currentFileInfo, this.index); - this.path.genCSS(env, output); - if (this.features) { - output.add(" "); - this.features.genCSS(env, output); - } - output.add(';'); - } - }, - toCSS: tree.toCSS, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - - if (!(path instanceof tree.URL)) { - if (rootpath) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath +pathValue; - } - } - path.value = env.normalizePath(path.value); - } - - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { - if (typeof this.skip === "function") { - this.skip = this.skip(); - } - if (this.skip) { - return []; - } - } - - if (this.options.inline) { - //todo needs to reference css file not import - var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true); - return this.features ? new(tree.Media)([contents], this.features.value) : [contents]; - } else if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" , - index: this.index }; - } - - var variables = env.frames[0].variables(); - for (var k in variables) { - if (variables.hasOwnProperty(k)) { - /*jshint loopfunc:true */ - context[k.slice(1)] = { - value: variables[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message.replace(/["]/g, "'") + "'" , - index: this.index }; - } - if (typeof(result) === 'number') { - return new(tree.Dimension)(result); - } else if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Keyword = function (value) { this.value = value; }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - genCSS: function (env, output) { - if (this.value === '%') { throw { type: "Syntax", message: "Invalid % without number" }; } - output.add(this.value); - }, - toCSS: tree.toCSS, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); - -(function (tree) { - -tree.Media = function (value, features, index, currentFileInfo) { - this.index = index; - this.currentFileInfo = currentFileInfo; - - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.rules = [new(tree.Ruleset)(selectors, value)]; - this.rules[0].allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - }, - genCSS: function (env, output) { - output.add('@media ', this.currentFileInfo, this.index); - this.features.genCSS(env, output); - tree.outputRuleset(env, output, this.rules); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)(null, [], this.index, this.currentFileInfo); - if(this.debugInfo) { - this.rules[0].debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.rules[0]); - media.rules = [this.rules[0].eval(env)]; - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env); - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', this.index, this.currentFileInfo), - sels = [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)]; - sels[0].mediaEmpty = true; - return sels; - }, - markReferenced: function () { - var i, rules = this.rules[0].rules; - this.rules[0].markReferenced(); - this.isReferenced = true; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - if (!selectors) - return; - this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])]; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = (args && args.length) ? args : null; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - if (this.selector) { - this.selector = visitor.visit(this.selector); - } - if (this.arguments) { - this.arguments = visitor.visitArray(this.arguments); - } - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule, - candidates = [], candidate, conditionResult = [], defaultFunc = tree.defaultFunc, - defaultResult, defNone = 0, defTrue = 1, defFalse = 2, count, originalRuleset; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - - // To make `default()` function independent of definition order we have two "subpasses" here. - // At first we evaluate each guard *twice* (with `default() == true` and `default() == false`), - // and build candidate list with corresponding flags. Then, when we know all possible matches, - // we make a final decision. - - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - - if (mixin.matchArgs(args, env)) { - candidate = {mixin: mixin, group: defNone}; - - if (mixin.matchCondition) { - for (f = 0; f < 2; f++) { - defaultFunc.value(f); - conditionResult[f] = mixin.matchCondition(args, env); - } - if (conditionResult[0] || conditionResult[1]) { - if (conditionResult[0] != conditionResult[1]) { - candidate.group = conditionResult[1] ? - defTrue : defFalse; - } - - candidates.push(candidate); - } - } - else { - candidates.push(candidate); - } - - match = true; - } - } - - defaultFunc.reset(); - - count = [0, 0, 0]; - for (m = 0; m < candidates.length; m++) { - count[candidates[m].group]++; - } - - if (count[defNone] > 0) { - defaultResult = defFalse; - } else { - defaultResult = defTrue; - if ((count[defTrue] + count[defFalse]) > 1) { - throw { type: 'Runtime', - message: 'Ambiguous use of `default()` found when matching for `' - + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - for (m = 0; m < candidates.length; m++) { - candidate = candidates[m].group; - if ((candidate === defNone) || (candidate === defaultResult)) { - try { - mixin = candidates[m].mixin; - if (!(mixin instanceof tree.mixin.Definition)) { - originalRuleset = mixin.originalRuleset || mixin; - mixin = new tree.mixin.Definition("", [], mixin.rules, null, false); - mixin.originalRuleset = originalRuleset; - } - Array.prototype.push.apply( - rules, mixin.evalCall(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - } - - if (match) { - if (!this.currentFileInfo || !this.currentFileInfo.reference) { - for (i = 0; i < rules.length; i++) { - rule = rules[i]; - if (rule.markReferenced) { - rule.markReferenced(); - } - } - } - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - }, - format: function (args) { - return this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")"; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic, frames) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1; } - else { return count; } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = frames; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - if (this.params && this.params.length) { - this.params = visitor.visitArray(this.params); - } - this.rules = visitor.visitArray(this.rules); - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - /*jshint boss:true */ - var frame = new(tree.Ruleset)(null, null), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex, argsLength = 0; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - argsLength = args.length; - - for(i = 0; i < argsLength; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.prependRule(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) { continue; } - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic) { - varargs = []; - for (j = argIndex; j < argsLength; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.prependRule(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + argsLength + ' for ' + this.arity + ')' }; - } - - frame.prependRule(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < argsLength; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env) { - return new tree.mixin.Definition(this.name, this.params, this.rules, this.condition, this.variadic, this.frames || env.frames.slice(0)); - }, - evalCall: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames ? this.frames.concat(env.frames) : env.frames, - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - rules, ruleset; - - frame.prependRule(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules); - ruleset.originalRuleset = this; - ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames))); - if (important) { - ruleset = this.parent.makeImportant.apply(ruleset); - } - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames ? this.frames.concat(env.frames) : env.frames), args, [])] // the parameter variables - .concat(this.frames) // the parent namespace/mixin frames - .concat(env.frames)))) { // the current environment frames - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (! this.variadic) { - if (argsLength < this.required) { return false; } - if (argsLength > this.params.length) { return false; } - } else { - if (argsLength < (this.required - 1)) { return false; } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('-'); - this.value.genCSS(env, output); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env); - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - a = a.toColor(); - } - if (b instanceof tree.Dimension && a instanceof tree.Color) { - b = b.toColor(); - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - genCSS: function (env, output) { - this.operands[0].genCSS(env, output); - if (this.isSpaced) { - output.add(" "); - } - output.add(this.op); - if (this.isSpaced) { - output.add(" "); - } - this.operands[1].genCSS(env, output); - }, - toCSS: tree.toCSS -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('('); - this.value.genCSS(env, output); - output.add(')'); - }, - toCSS: tree.toCSS, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - genCSS: function (env, output) { - if (!this.escaped) { - output.add(this.quote, this.currentFileInfo, this.index); - } - output.add(this.value); - if (!this.escaped) { - output.add(this.quote); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left, right; - - // when comparing quoted strings allow the quote to differ - if (x.type === "Quoted" && !this.escaped && !x.escaped) { - left = x.value; - right = this.value; - } else { - left = this.toCSS(); - right = x.toCSS(); - } - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value || value instanceof tree.Ruleset) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.merge = merge; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - this.variable = name.charAt && (name.charAt(0) === '@'); -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index); - try { - this.value.genCSS(env, output); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index); - }, - toCSS: tree.toCSS, - eval: function (env) { - var strictMathBypass = false, name = this.name, evaldValue; - if (typeof name !== "string") { - // expand 'primitive' name directly to get - // things faster (~10% for benchmark.less): - name = (name.length === 1) - && (name[0] instanceof tree.Keyword) - ? name[0].value : evalName(env, name); - } - if (name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - evaldValue = this.value.eval(env); - - if (!this.variable && evaldValue.type === "DetachedRuleset") { - throw { message: "Rulesets cannot be evaluated on a property.", - index: this.index, filename: this.currentFileInfo.filename }; - } - - return new(tree.Rule)(name, - evaldValue, - this.important, - this.merge, - this.index, this.currentFileInfo, this.inline); - } - catch(e) { - if (typeof e.index !== 'number') { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - } - throw e; - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.merge, - this.index, this.currentFileInfo, this.inline); - } -}; - -function evalName(env, name) { - var value = "", i, n = name.length, - output = {add: function (s) {value += s;}}; - for (i = 0; i < n; i++) { - name[i].eval(env).genCSS(env, output); - } - return value; -} - -})(require('../tree')); - -(function (tree) { - -tree.RulesetCall = function (variable) { - this.variable = variable; -}; -tree.RulesetCall.prototype = { - type: "RulesetCall", - accept: function (visitor) { - }, - eval: function (env) { - var detachedRuleset = new(tree.Variable)(this.variable).eval(env); - return detachedRuleset.callEval(env); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - if (this.paths) { - visitor.visitArray(this.paths, true); - } else if (this.selectors) { - this.selectors = visitor.visitArray(this.selectors); - } - if (this.rules && this.rules.length) { - this.rules = visitor.visitArray(this.rules); - } - }, - eval: function (env) { - var thisSelectors = this.selectors, selectors, - selCnt, selector, i, defaultFunc = tree.defaultFunc, hasOnePassingSelector = false; - - if (thisSelectors && (selCnt = thisSelectors.length)) { - selectors = []; - defaultFunc.error({ - type: "Syntax", - message: "it is currently only allowed in parametric mixin guards," - }); - for (i = 0; i < selCnt; i++) { - selector = thisSelectors[i].eval(env); - selectors.push(selector); - if (selector.evaldCondition) { - hasOnePassingSelector = true; - } - } - defaultFunc.reset(); - } else { - hasOnePassingSelector = true; - } - - var rules = this.rules ? this.rules.slice(0) : null, - ruleset = new(tree.Ruleset)(selectors, rules, this.strictImports), - rule, subRule; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - if (!hasOnePassingSelector) { - rules.length = 0; - } - - // push the current ruleset to the frames stack - var envFrames = env.frames; - envFrames.unshift(ruleset); - - // currrent selectors - var envSelectors = env.selectors; - if (!envSelectors) { - env.selectors = envSelectors = []; - } - envSelectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - var rsRules = ruleset.rules, rsRuleCnt = rsRules ? rsRules.length : 0; - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Definition || rsRules[i] instanceof tree.DetachedRuleset) { - rsRules[i] = rsRules[i].eval(env); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Call) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } else if (rsRules[i] instanceof tree.RulesetCall) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).rules.filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope at all - return false; - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (i = 0; i < rsRules.length; i++) { - rule = rsRules[i]; - if (! (rule instanceof tree.mixin.Definition || rule instanceof tree.DetachedRuleset)) { - rsRules[i] = rule = rule.eval ? rule.eval(env) : rule; - } - } - - // Evaluate everything else - for (i = 0; i < rsRules.length; i++) { - rule = rsRules[i]; - // for rulesets, check if it is a css guard and can be removed - if (rule instanceof tree.Ruleset && rule.selectors && rule.selectors.length === 1) { - // check if it can be folded in (e.g. & where) - if (rule.selectors[0].isJustParentSelector()) { - rsRules.splice(i--, 1); - - for(var j = 0; j < rule.rules.length; j++) { - subRule = rule.rules[j]; - if (!(subRule instanceof tree.Rule) || !subRule.variable) { - rsRules.splice(++i, 0, subRule); - } - } - } - } - } - - // Pop the stack - envFrames.shift(); - envSelectors.shift(); - - if (env.mediaBlocks) { - for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var rules = this.rules, i, importRules; - if (!rules) { return; } - - for (i = 0; i < rules.length; i++) { - if (rules[i] instanceof tree.Import) { - importRules = rules[i].eval(env); - if (importRules && importRules.length) { - rules.splice.apply(rules, [i, 1].concat(importRules)); - i+= importRules.length-1; - } else { - rules.splice(i, 1, importRules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - // lets you call a css selector with a guard - matchCondition: function (args, env) { - var lastSelector = this.selectors[this.selectors.length-1]; - if (!lastSelector.evaldCondition) { - return false; - } - if (lastSelector.condition && - !lastSelector.condition.eval( - new(tree.evalEnv)(env, - env.frames))) { - return false; - } - return true; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (!this._variables) { - this._variables = !this.rules ? {} : this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - return this._variables; - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (!this.rules) { return null; } - - var _Ruleset = tree.Ruleset, _MixinDefinition = tree.mixin.Definition, - filtRules = [], rules = this.rules, cnt = rules.length, - i, rule; - - for (i = 0; i < cnt; i++) { - rule = rules[i]; - if ((rule instanceof _Ruleset) || (rule instanceof _MixinDefinition)) { - filtRules.push(rule); - } - } - - return filtRules; - }, - prependRule: function (rule) { - var rules = this.rules; - if (rules) { rules.unshift(rule); } else { this.rules = [ rule ]; } - }, - find: function (selector, self) { - self = self || this; - var rules = [], match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key]; } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - match = selector.match(rule.selectors[j]); - if (match) { - if (selector.elements.length > match) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(match)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - this._lookups[key] = rules; - return rules; - }, - genCSS: function (env, output) { - var i, j, - ruleNodes = [], - rulesetNodes = [], - rulesetNodeCnt, - debugInfo, // Line number debugging - rule, - path; - - env.tabLevel = (env.tabLevel || 0); - - if (!this.root) { - env.tabLevel++; - } - - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "), - sep; - - for (i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - if (rule.rules || (rule instanceof tree.Media) || rule instanceof tree.Directive || (this.root && rule instanceof tree.Comment)) { - rulesetNodes.push(rule); - } else { - ruleNodes.push(rule); - } - } - - // If this is the root node, we don't render - // a selector, or {}. - if (!this.root) { - debugInfo = tree.debugInfo(env, this, tabSetStr); - - if (debugInfo) { - output.add(debugInfo); - output.add(tabSetStr); - } - - var paths = this.paths, pathCnt = paths.length, - pathSubCnt; - - sep = env.compress ? ',' : (',\n' + tabSetStr); - - for (i = 0; i < pathCnt; i++) { - path = paths[i]; - if (!(pathSubCnt = path.length)) { continue; } - if (i > 0) { output.add(sep); } - - env.firstSelector = true; - path[0].genCSS(env, output); - - env.firstSelector = false; - for (j = 1; j < pathSubCnt; j++) { - path[j].genCSS(env, output); - } - } - - output.add((env.compress ? '{' : ' {\n') + tabRuleStr); - } - - // Compile rules and rulesets - for (i = 0; i < ruleNodes.length; i++) { - rule = ruleNodes[i]; - - // @page{ directive ends up with root elements inside it, a mix of rules and rulesets - // In this instance we do not know whether it is the last property - if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) { - env.lastRule = true; - } - - if (rule.genCSS) { - rule.genCSS(env, output); - } else if (rule.value) { - output.add(rule.value.toString()); - } - - if (!env.lastRule) { - output.add(env.compress ? '' : ('\n' + tabRuleStr)); - } else { - env.lastRule = false; - } - } - - if (!this.root) { - output.add((env.compress ? '}' : '\n' + tabSetStr + '}')); - env.tabLevel--; - } - - sep = (env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr); - rulesetNodeCnt = rulesetNodes.length; - if (rulesetNodeCnt) { - if (ruleNodes.length && sep) { output.add(sep); } - rulesetNodes[0].genCSS(env, output); - for (i = 1; i < rulesetNodeCnt; i++) { - if (sep) { output.add(sep); } - rulesetNodes[i].genCSS(env, output); - } - } - - if (!output.isEmpty() && !env.compress && this.firstRoot) { - output.add('\n'); - } - }, - - toCSS: tree.toCSS, - - markReferenced: function () { - if (!this.selectors) { - return; - } - for (var s = 0; s < this.selectors.length; s++) { - this.selectors[s].markReferenced(); - } - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for (i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for (j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length === 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', el.index, el.currentFileInfo)); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for (k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = selector.createDerived([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for (i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length === 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for (i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); - -(function (tree) { - -tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) { - this.elements = elements; - this.extendList = extendList; - this.condition = condition; - this.currentFileInfo = currentFileInfo || {}; - this.isReferenced = isReferenced; - if (!condition) { - this.evaldCondition = true; - } -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - if (this.elements) { - this.elements = visitor.visitArray(this.elements); - } - if (this.extendList) { - this.extendList = visitor.visitArray(this.extendList); - } - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - createDerived: function(elements, extendList, evaldCondition) { - evaldCondition = (evaldCondition != null) ? evaldCondition : this.evaldCondition; - var newSelector = new(tree.Selector)(elements, extendList || this.extendList, null, this.index, this.currentFileInfo, this.isReferenced); - newSelector.evaldCondition = evaldCondition; - newSelector.mediaEmpty = this.mediaEmpty; - return newSelector; - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - olen, i; - - other.CacheElements(); - - olen = other._elements.length; - if (olen === 0 || len < olen) { - return 0; - } else { - for (i = 0; i < olen; i++) { - if (elements[i].value !== other._elements[i]) { - return 0; - } - } - } - - return olen; // return number of matched elements - }, - CacheElements: function(){ - var css = '', len, v, i; - - if( !this._elements ){ - - len = this.elements.length; - for(i = 0; i < len; i++){ - - v = this.elements[i]; - css += v.combinator.value; - - if( !v.value.value ){ - css += v.value; - continue; - } - - if( typeof v.value.value !== "string" ){ - css = ''; - break; - } - css += v.value.value; - } - - this._elements = css.match(/[,&#\.\w-]([\w-]|(\\.))*/g); - - if (this._elements) { - if (this._elements[0] === "&") { - this._elements.shift(); - } - - } else { - this._elements = []; - } - - } - }, - isJustParentSelector: function() { - return !this.mediaEmpty && - this.elements.length === 1 && - this.elements[0].value === '&' && - (this.elements[0].combinator.value === ' ' || this.elements[0].combinator.value === ''); - }, - eval: function (env) { - var evaldCondition = this.condition && this.condition.eval(env), - elements = this.elements, extendList = this.extendList; - - elements = elements && elements.map(function (e) { return e.eval(env); }); - extendList = extendList && extendList.map(function(extend) { return extend.eval(env); }); - - return this.createDerived(elements, extendList, evaldCondition); - }, - genCSS: function (env, output) { - var i, element; - if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") { - output.add(' ', this.currentFileInfo, this.index); - } - if (!this._css) { - //TODO caching? speed comparison? - for(i = 0; i < this.elements.length; i++) { - element = this.elements[i]; - element.genCSS(env, output); - } - } - }, - toCSS: tree.toCSS, - markReferenced: function () { - this.isReferenced = true; - }, - getIsReferenced: function() { - return !this.currentFileInfo.reference || this.isReferenced; - }, - getIsOutput: function() { - return this.evaldCondition; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - eval: function () { return this; } -}; - -})(require('../tree')); - -(function (tree) { - -tree.URL = function (val, currentFileInfo, isEvald) { - this.value = val; - this.currentFileInfo = currentFileInfo; - this.isEvald = isEvald; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add("url("); - this.value.genCSS(env, output); - output.add(")"); - }, - toCSS: tree.toCSS, - eval: function (ctx) { - var val = this.value.eval(ctx), - rootpath; - - if (!this.isEvald) { - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - val.value = ctx.normalizePath(val.value); - - // Add url args if enabled - if (ctx.urlArgs) { - if (!val.value.match(/^\s*data:/)) { - var delimiter = val.value.indexOf('?') === -1 ? '?' : '&'; - var urlArgs = delimiter + ctx.urlArgs; - if (val.value.indexOf('#') !== -1) { - val.value = val.value.replace('#', urlArgs + '#'); - } else { - val.value += urlArgs; - } - } - } - } - - return new(tree.URL)(val, this.currentFileInfo, true); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - genCSS: function (env, output) { - var i; - for(i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i+1 < this.value.length) { - output.add((env && env.compress) ? ',' : ', '); - } - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { - this.name = name; - this.index = index; - this.currentFileInfo = currentFileInfo || {}; -}; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, name = this.name; - - if (name.indexOf('@@') === 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - variable = tree.find(env.frames, function (frame) { - var v = frame.variable(name); - if (v) { - return v.value.eval(env); - } - }); - if (variable) { - this.evaluating = false; - return variable; - } else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); - -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // map - filename to contents of all the files - 'contentsIgnoredChars', // map - filename to lines at the begining of each file to ignore - 'relativeUrls', // option - whether to adjust URL's to be relative - 'rootpath', // option - rootpath to append to URL's - 'strictImports', // option - - 'insecure', // option - whether to allow imports from insecure ssl hosts - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true - 'mime', // browser only - mime type for sheet import - 'useFileCache', // browser only - whether to use the per file session cache - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' - absolute path to the entry file - // 'reference' - whether the file should not be output and only output parts that are referenced - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.contentsIgnoredChars) { this.contentsIgnoredChars = {}; } - if (!this.files) { this.files = {}; } - - if (typeof this.paths === "string") { this.paths = [this.paths]; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits', // whether units need to evaluate correctly - 'cleancss', // whether to compress with clean-css - 'sourceMap', // whether to output a source map - 'importMultiple', // whether we are currently importing multiple copies - 'urlArgs' // whether to add args into url tokens - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - tree.evalEnv.prototype.normalizePath = function( path ) { - var - segments = path.split("/").reverse(), - segment; - - path = []; - while (segments.length !== 0 ) { - segment = segments.pop(); - switch( segment ) { - case ".": - break; - case "..": - if ((path.length === 0) || (path[path.length - 1] === "..")) { - path.push( segment ); - } else { - path.pop(); - } - break; - default: - path.push( segment ); - break; - } - } - - return path.join("/"); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - }; - -})(require('./tree')); - -(function (tree) { - - var _visitArgs = { visitDeeper: true }, - _hasIndexed = false; - - function _noop(node) { - return node; - } - - function indexNodeTypes(parent, ticker) { - // add .typeIndex to tree node types for lookup table - var key, child; - for (key in parent) { - if (parent.hasOwnProperty(key)) { - child = parent[key]; - switch (typeof child) { - case "function": - // ignore bound functions directly on tree which do not have a prototype - // or aren't nodes - if (child.prototype && child.prototype.type) { - child.prototype.typeIndex = ticker++; - } - break; - case "object": - ticker = indexNodeTypes(child, ticker); - break; - } - } - } - return ticker; - } - - tree.visitor = function(implementation) { - this._implementation = implementation; - this._visitFnCache = []; - - if (!_hasIndexed) { - indexNodeTypes(tree, 1); - _hasIndexed = true; - } - }; - - tree.visitor.prototype = { - visit: function(node) { - if (!node) { - return node; - } - - var nodeTypeIndex = node.typeIndex; - if (!nodeTypeIndex) { - return node; - } - - var visitFnCache = this._visitFnCache, - impl = this._implementation, - aryIndx = nodeTypeIndex << 1, - outAryIndex = aryIndx | 1, - func = visitFnCache[aryIndx], - funcOut = visitFnCache[outAryIndex], - visitArgs = _visitArgs, - fnName; - - visitArgs.visitDeeper = true; - - if (!func) { - fnName = "visit" + node.type; - func = impl[fnName] || _noop; - funcOut = impl[fnName + "Out"] || _noop; - visitFnCache[aryIndx] = func; - visitFnCache[outAryIndex] = funcOut; - } - - if (func !== _noop) { - var newNode = func.call(impl, node, visitArgs); - if (impl.isReplacing) { - node = newNode; - } - } - - if (visitArgs.visitDeeper && node && node.accept) { - node.accept(this); - } - - if (funcOut != _noop) { - funcOut.call(impl, node); - } - - return node; - }, - visitArray: function(nodes, nonReplacing) { - if (!nodes) { - return nodes; - } - - var cnt = nodes.length, i; - - // Non-replacing - if (nonReplacing || !this._implementation.isReplacing) { - for (i = 0; i < cnt; i++) { - this.visit(nodes[i]); - } - return nodes; - } - - // Replacing - var out = []; - for (i = 0; i < cnt; i++) { - var evald = this.visit(nodes[i]); - if (!evald.splice) { - out.push(evald); - } else if (evald.length) { - this.flatten(evald, out); - } - } - return out; - }, - flatten: function(arr, out) { - if (!out) { - out = []; - } - - var cnt, i, item, - nestedCnt, j, nestedItem; - - for (i = 0, cnt = arr.length; i < cnt; i++) { - item = arr[i]; - if (!item.splice) { - out.push(item); - continue; - } - - for (j = 0, nestedCnt = item.length; j < nestedCnt; j++) { - nestedItem = item[j]; - if (!nestedItem.splice) { - out.push(nestedItem); - } else if (nestedItem.length) { - this.flatten(nestedItem, out); - } - } - } - - return out; - } - }; - -})(require('./tree')); -(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv, onceFileDetectionMap, recursionDetector) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - this.onceFileDetectionMap = onceFileDetectionMap || {}; - this.recursionDetector = {}; - if (recursionDetector) { - for(var fullFilename in recursionDetector) { - if (recursionDetector.hasOwnProperty(fullFilename)) { - this.recursionDetector[fullFilename] = true; - } - } - } - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode, - inlineCSS = importNode.options.inline; - - if (!importNode.css || inlineCSS) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - - if (importNode.options.multiple) { - env.importMultiple = true; - } - - this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, importedAtRoot, fullPath) { - if (e && !e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - - if (!env.importMultiple) { - if (importedAtRoot) { - importNode.skip = true; - } else { - importNode.skip = function() { - if (fullPath in importVisitor.onceFileDetectionMap) { - return true; - } - importVisitor.onceFileDetectionMap[fullPath] = true; - return false; - }; - } - } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - importNode.importedFilename = fullPath; - var duplicateImport = importedAtRoot || fullPath in importVisitor.recursionDetector; - - if (!inlineCSS && (env.importMultiple || !duplicateImport)) { - importVisitor.recursionDetector[fullPath] = true; - new(tree.importVisitor)(importVisitor._importer, subFinish, env, importVisitor.onceFileDetectionMap, importVisitor.recursionDetector) - .run(root); - return; - } - } - - subFinish(); - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree')); -(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1], - paths = [], selectors; - - this.contexts.push(paths); - - if (! rulesetNode.root) { - selectors = rulesetNode.selectors; - if (selectors) { - selectors = selectors.filter(function(selector) { return selector.getIsOutput(); }); - rulesetNode.selectors = selectors.length ? selectors : (selectors = null); - if (selectors) { rulesetNode.joinSelectors(paths, context, selectors); } - } - if (!selectors) { rulesetNode.rules = null; } - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree')); -(function (tree) { - tree.toCSSVisitor = function(env) { - this._visitor = new tree.visitor(this); - this._env = env; - }; - - tree.toCSSVisitor.prototype = { - isReplacing: true, - run: function (root) { - return this._visitor.visit(root); - }, - - visitRule: function (ruleNode, visitArgs) { - if (ruleNode.variable) { - return []; - } - return ruleNode; - }, - - visitMixinDefinition: function (mixinNode, visitArgs) { - // mixin definitions do not get eval'd - this means they keep state - // so we have to clear that state here so it isn't used if toCSS is called twice - mixinNode.frames = []; - return []; - }, - - visitExtend: function (extendNode, visitArgs) { - return []; - }, - - visitComment: function (commentNode, visitArgs) { - if (commentNode.isSilent(this._env)) { - return []; - } - return commentNode; - }, - - visitMedia: function(mediaNode, visitArgs) { - mediaNode.accept(this._visitor); - visitArgs.visitDeeper = false; - - if (!mediaNode.rules.length) { - return []; - } - return mediaNode; - }, - - visitDirective: function(directiveNode, visitArgs) { - if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) { - return []; - } - if (directiveNode.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (this.charset) { - if (directiveNode.debugInfo) { - var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n"); - comment.debugInfo = directiveNode.debugInfo; - return this._visitor.visit(comment); - } - return []; - } - this.charset = true; - } - return directiveNode; - }, - - checkPropertiesInRoot: function(rules) { - var ruleNode; - for(var i = 0; i < rules.length; i++) { - ruleNode = rules[i]; - if (ruleNode instanceof tree.Rule && !ruleNode.variable) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null}; - } - } - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var rule, rulesets = []; - if (rulesetNode.firstRoot) { - this.checkPropertiesInRoot(rulesetNode.rules); - } - if (! rulesetNode.root) { - if (rulesetNode.paths) { - rulesetNode.paths = rulesetNode.paths - .filter(function(p) { - var i; - if (p[0].elements[0].combinator.value === ' ') { - p[0].elements[0].combinator = new(tree.Combinator)(''); - } - for(i = 0; i < p.length; i++) { - if (p[i].getIsReferenced() && p[i].getIsOutput()) { - return true; - } - } - return false; - }); - } - - // Compile rules and rulesets - var nodeRules = rulesetNode.rules, nodeRuleCnt = nodeRules ? nodeRules.length : 0; - for (var i = 0; i < nodeRuleCnt; ) { - rule = nodeRules[i]; - if (rule && rule.rules) { - // visit because we are moving them out from being a child - rulesets.push(this._visitor.visit(rule)); - nodeRules.splice(i, 1); - nodeRuleCnt--; - continue; - } - i++; - } - // accept the visitor to remove rules and refactor itself - // then we can decide now whether we want it or not - if (nodeRuleCnt > 0) { - rulesetNode.accept(this._visitor); - } else { - rulesetNode.rules = null; - } - visitArgs.visitDeeper = false; - - nodeRules = rulesetNode.rules; - if (nodeRules) { - this._mergeRules(nodeRules); - nodeRules = rulesetNode.rules; - } - if (nodeRules) { - this._removeDuplicateRules(nodeRules); - nodeRules = rulesetNode.rules; - } - - // now decide whether we keep the ruleset - if (nodeRules && nodeRules.length > 0 && rulesetNode.paths.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } else { - rulesetNode.accept(this._visitor); - visitArgs.visitDeeper = false; - if (rulesetNode.firstRoot || (rulesetNode.rules && rulesetNode.rules.length > 0)) { - rulesets.splice(0, 0, rulesetNode); - } - } - if (rulesets.length === 1) { - return rulesets[0]; - } - return rulesets; - }, - - _removeDuplicateRules: function(rules) { - if (!rules) { return; } - - // remove duplicates - var ruleCache = {}, - ruleList, rule, i; - - for(i = rules.length - 1; i >= 0 ; i--) { - rule = rules[i]; - if (rule instanceof tree.Rule) { - if (!ruleCache[rule.name]) { - ruleCache[rule.name] = rule; - } else { - ruleList = ruleCache[rule.name]; - if (ruleList instanceof tree.Rule) { - ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)]; - } - var ruleCSS = rule.toCSS(this._env); - if (ruleList.indexOf(ruleCSS) !== -1) { - rules.splice(i, 1); - } else { - ruleList.push(ruleCSS); - } - } - } - } - }, - - _mergeRules: function (rules) { - if (!rules) { return; } - - var groups = {}, - parts, - rule, - key; - - for (var i = 0; i < rules.length; i++) { - rule = rules[i]; - - if ((rule instanceof tree.Rule) && rule.merge) { - key = [rule.name, - rule.important ? "!" : ""].join(","); - - if (!groups[key]) { - groups[key] = []; - } else { - rules.splice(i--, 1); - } - - groups[key].push(rule); - } - } - - Object.keys(groups).map(function (k) { - - function toExpression(values) { - return new (tree.Expression)(values.map(function (p) { - return p.value; - })); - } - - function toValue(values) { - return new (tree.Value)(values.map(function (p) { - return p; - })); - } - - parts = groups[k]; - - if (parts.length > 1) { - rule = parts[0]; - var spacedGroups = []; - var lastSpacedGroup = []; - parts.map(function (p) { - if (p.merge==="+") { - if (lastSpacedGroup.length > 0) { - spacedGroups.push(toExpression(lastSpacedGroup)); - } - lastSpacedGroup = []; - } - lastSpacedGroup.push(p); - }); - spacedGroups.push(toExpression(lastSpacedGroup)); - rule.value = toValue(spacedGroups); - } - }); - } - }; - -})(require('./tree')); -(function (tree) { - /*jshint loopfunc:true */ - - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - var rules = rulesetNode.rules, ruleCnt = rules ? rules.length : 0; - for(i = 0; i < ruleCnt; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rules[i]); - rulesetNode.extendOnEveryPath = true; - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - var paths = rulesetNode.paths; - for(i = 0; i < paths.length; i++) { - var selectorPath = paths[i], - selector = selectorPath[selectorPath.length - 1], - selExtendList = selector.extendList; - - extendList = selExtendList ? selExtendList.slice(0).concat(allSelectorsExtendList) - : allSelectorsExtendList; - - if (extendList) { - extendList = extendList.map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - } - - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if( extend.parent_ids.indexOf( targetExtend.object_id ) >= 0 ){ continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parent_ids = newExtend.parent_ids.concat(targetExtend.parent_ids, extend.parent_ids); - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (rulesetNode.extendOnEveryPath) { continue; } - var extendList = selectorPath[selectorPath.length-1].extendList; - if (extendList && extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator === '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - elementValue1 = elementValue1.value; - elementValue2 = elementValue2.value; - if (elementValue1 instanceof tree.Selector) { - if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) { - return false; - } - for(var i = 0; i currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - newElements = selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)); - - if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) { - path[path.length - 1].elements = - path[path.length - 1].elements.concat(newElements); - } else { - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - newElements - )); - } - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.sourceMapOutput = function (options) { - this._css = []; - this._rootNode = options.rootNode; - this._writeSourceMap = options.writeSourceMap; - this._contentsMap = options.contentsMap; - this._contentsIgnoredCharsMap = options.contentsIgnoredCharsMap; - this._sourceMapFilename = options.sourceMapFilename; - this._outputFilename = options.outputFilename; - this._sourceMapURL = options.sourceMapURL; - if (options.sourceMapBasepath) { - this._sourceMapBasepath = options.sourceMapBasepath.replace(/\\/g, '/'); - } - this._sourceMapRootpath = options.sourceMapRootpath; - this._outputSourceFiles = options.outputSourceFiles; - this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator; - - if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') { - this._sourceMapRootpath += '/'; - } - - this._lineNumber = 0; - this._column = 0; - }; - - tree.sourceMapOutput.prototype.normalizeFilename = function(filename) { - filename = filename.replace(/\\/g, '/'); - - if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) { - filename = filename.substring(this._sourceMapBasepath.length); - if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') { - filename = filename.substring(1); - } - } - return (this._sourceMapRootpath || "") + filename; - }; - - tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) { - - //ignore adding empty strings - if (!chunk) { - return; - } - - var lines, - sourceLines, - columns, - sourceColumns, - i; - - if (fileInfo) { - var inputSource = this._contentsMap[fileInfo.filename]; - - // remove vars/banner added to the top of the file - if (this._contentsIgnoredCharsMap[fileInfo.filename]) { - // adjust the index - index -= this._contentsIgnoredCharsMap[fileInfo.filename]; - if (index < 0) { index = 0; } - // adjust the source - inputSource = inputSource.slice(this._contentsIgnoredCharsMap[fileInfo.filename]); - } - inputSource = inputSource.substring(0, index); - sourceLines = inputSource.split("\n"); - sourceColumns = sourceLines[sourceLines.length-1]; - } - - lines = chunk.split("\n"); - columns = lines[lines.length-1]; - - if (fileInfo) { - if (!mapLines) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column}, - original: { line: sourceLines.length, column: sourceColumns.length}, - source: this.normalizeFilename(fileInfo.filename)}); - } else { - for(i = 0; i < lines.length; i++) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0}, - original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0}, - source: this.normalizeFilename(fileInfo.filename)}); - } - } - } - - if (lines.length === 1) { - this._column += columns.length; - } else { - this._lineNumber += lines.length - 1; - this._column = columns.length; - } - - this._css.push(chunk); - }; - - tree.sourceMapOutput.prototype.isEmpty = function() { - return this._css.length === 0; - }; - - tree.sourceMapOutput.prototype.toCSS = function(env) { - this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null }); - - if (this._outputSourceFiles) { - for(var filename in this._contentsMap) { - if (this._contentsMap.hasOwnProperty(filename)) - { - var source = this._contentsMap[filename]; - if (this._contentsIgnoredCharsMap[filename]) { - source = source.slice(this._contentsIgnoredCharsMap[filename]); - } - this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), source); - } - } - } - - this._rootNode.genCSS(env, this); - - if (this._css.length > 0) { - var sourceMapURL, - sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); - - if (this._sourceMapURL) { - sourceMapURL = this._sourceMapURL; - } else if (this._sourceMapFilename) { - sourceMapURL = this.normalizeFilename(this._sourceMapFilename); - } - - if (this._writeSourceMap) { - this._writeSourceMap(sourceMapContent); - } else { - sourceMapURL = "data:application/json;base64," + require('./encoder.js').encodeBase64(sourceMapContent); - } - - if (sourceMapURL) { - this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */"); - } - } - - return this._css.join(''); - }; - -})(require('./tree')); - -// wraps the source-map code in a less module -(function() { - less.modules["source-map"] = function() { - -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ - -/** - * Define a module along with a payload. - * @param {string} moduleName Name for the payload - * @param {ignored} deps Ignored. For compatibility with CommonJS AMD Spec - * @param {function} payload Function with (require, exports, module) params - */ -function define(moduleName, deps, payload) { - if (typeof moduleName != "string") { - throw new TypeError('Expected string, got: ' + moduleName); - } - - if (arguments.length == 2) { - payload = deps; - } - - if (moduleName in define.modules) { - throw new Error("Module already defined: " + moduleName); - } - define.modules[moduleName] = payload; -}; - -/** - * The global store of un-instantiated modules - */ -define.modules = {}; - - -/** - * We invoke require() in the context of a Domain so we can have multiple - * sets of modules running separate from each other. - * This contrasts with JSMs which are singletons, Domains allows us to - * optionally load a CommonJS module twice with separate data each time. - * Perhaps you want 2 command lines with a different set of commands in each, - * for example. - */ -function Domain() { - this.modules = {}; - this._currentModule = null; -} - -(function () { - - /** - * Lookup module names and resolve them by calling the definition function if - * needed. - * There are 2 ways to call this, either with an array of dependencies and a - * callback to call when the dependencies are found (which can happen - * asynchronously in an in-page context) or with a single string an no callback - * where the dependency is resolved synchronously and returned. - * The API is designed to be compatible with the CommonJS AMD spec and - * RequireJS. - * @param {string[]|string} deps A name, or names for the payload - * @param {function|undefined} callback Function to call when the dependencies - * are resolved - * @return {undefined|object} The module required or undefined for - * array/callback method - */ - Domain.prototype.require = function(deps, callback) { - if (Array.isArray(deps)) { - var params = deps.map(function(dep) { - return this.lookup(dep); - }, this); - if (callback) { - callback.apply(null, params); - } - return undefined; - } - else { - return this.lookup(deps); - } - }; - - function normalize(path) { - var bits = path.split('/'); - var i = 1; - while (i < bits.length) { - if (bits[i] === '..') { - bits.splice(i-1, 1); - } else if (bits[i] === '.') { - bits.splice(i, 1); - } else { - i++; - } - } - return bits.join('/'); - } - - function join(a, b) { - a = a.trim(); - b = b.trim(); - if (/^\//.test(b)) { - return b; - } else { - return a.replace(/\/*$/, '/') + b; - } - } - - function dirname(path) { - var bits = path.split('/'); - bits.pop(); - return bits.join('/'); - } - - /** - * Lookup module names and resolve them by calling the definition function if - * needed. - * @param {string} moduleName A name for the payload to lookup - * @return {object} The module specified by aModuleName or null if not found. - */ - Domain.prototype.lookup = function(moduleName) { - if (/^\./.test(moduleName)) { - moduleName = normalize(join(dirname(this._currentModule), moduleName)); - } - - if (moduleName in this.modules) { - var module = this.modules[moduleName]; - return module; - } - - if (!(moduleName in define.modules)) { - throw new Error("Module not defined: " + moduleName); - } - - var module = define.modules[moduleName]; - - if (typeof module == "function") { - var exports = {}; - var previousModule = this._currentModule; - this._currentModule = moduleName; - module(this.require.bind(this), exports, { id: moduleName, uri: "" }); - this._currentModule = previousModule; - module = exports; - } - - // cache the resulting module object for next time - this.modules[moduleName] = module; - - return module; - }; - -}()); - -define.Domain = Domain; -define.globalDomain = new Domain(); -var require = define.globalDomain.require.bind(define.globalDomain); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/source-map-generator', ['require', 'exports', 'module' , 'source-map/base64-vlq', 'source-map/util', 'source-map/array-set'], function(require, exports, module) { - - var base64VLQ = require('./base64-vlq'); - var util = require('./util'); - var ArraySet = require('./array-set').ArraySet; - - /** - * An instance of the SourceMapGenerator represents a source map which is - * being built incrementally. To create a new one, you must pass an object - * with the following properties: - * - * - file: The filename of the generated source. - * - sourceRoot: An optional root for all URLs in this source map. - */ - function SourceMapGenerator(aArgs) { - this._file = util.getArg(aArgs, 'file'); - this._sourceRoot = util.getArg(aArgs, 'sourceRoot', null); - this._sources = new ArraySet(); - this._names = new ArraySet(); - this._mappings = []; - this._sourcesContents = null; - } - - SourceMapGenerator.prototype._version = 3; - - /** - * Creates a new SourceMapGenerator based on a SourceMapConsumer - * - * @param aSourceMapConsumer The SourceMap. - */ - SourceMapGenerator.fromSourceMap = - function SourceMapGenerator_fromSourceMap(aSourceMapConsumer) { - var sourceRoot = aSourceMapConsumer.sourceRoot; - var generator = new SourceMapGenerator({ - file: aSourceMapConsumer.file, - sourceRoot: sourceRoot - }); - aSourceMapConsumer.eachMapping(function (mapping) { - var newMapping = { - generated: { - line: mapping.generatedLine, - column: mapping.generatedColumn - } - }; - - if (mapping.source) { - newMapping.source = mapping.source; - if (sourceRoot) { - newMapping.source = util.relative(sourceRoot, newMapping.source); - } - - newMapping.original = { - line: mapping.originalLine, - column: mapping.originalColumn - }; - - if (mapping.name) { - newMapping.name = mapping.name; - } - } - - generator.addMapping(newMapping); - }); - aSourceMapConsumer.sources.forEach(function (sourceFile) { - var content = aSourceMapConsumer.sourceContentFor(sourceFile); - if (content) { - generator.setSourceContent(sourceFile, content); - } - }); - return generator; - }; - - /** - * Add a single mapping from original source line and column to the generated - * source's line and column for this source map being created. The mapping - * object should have the following properties: - * - * - generated: An object with the generated line and column positions. - * - original: An object with the original line and column positions. - * - source: The original source file (relative to the sourceRoot). - * - name: An optional original token name for this mapping. - */ - SourceMapGenerator.prototype.addMapping = - function SourceMapGenerator_addMapping(aArgs) { - var generated = util.getArg(aArgs, 'generated'); - var original = util.getArg(aArgs, 'original', null); - var source = util.getArg(aArgs, 'source', null); - var name = util.getArg(aArgs, 'name', null); - - this._validateMapping(generated, original, source, name); - - if (source && !this._sources.has(source)) { - this._sources.add(source); - } - - if (name && !this._names.has(name)) { - this._names.add(name); - } - - this._mappings.push({ - generatedLine: generated.line, - generatedColumn: generated.column, - originalLine: original != null && original.line, - originalColumn: original != null && original.column, - source: source, - name: name - }); - }; - - /** - * Set the source content for a source file. - */ - SourceMapGenerator.prototype.setSourceContent = - function SourceMapGenerator_setSourceContent(aSourceFile, aSourceContent) { - var source = aSourceFile; - if (this._sourceRoot) { - source = util.relative(this._sourceRoot, source); - } - - if (aSourceContent !== null) { - // Add the source content to the _sourcesContents map. - // Create a new _sourcesContents map if the property is null. - if (!this._sourcesContents) { - this._sourcesContents = {}; - } - this._sourcesContents[util.toSetString(source)] = aSourceContent; - } else { - // Remove the source file from the _sourcesContents map. - // If the _sourcesContents map is empty, set the property to null. - delete this._sourcesContents[util.toSetString(source)]; - if (Object.keys(this._sourcesContents).length === 0) { - this._sourcesContents = null; - } - } - }; - - /** - * Applies the mappings of a sub-source-map for a specific source file to the - * source map being generated. Each mapping to the supplied source file is - * rewritten using the supplied source map. Note: The resolution for the - * resulting mappings is the minimium of this map and the supplied map. - * - * @param aSourceMapConsumer The source map to be applied. - * @param aSourceFile Optional. The filename of the source file. - * If omitted, SourceMapConsumer's file property will be used. - */ - SourceMapGenerator.prototype.applySourceMap = - function SourceMapGenerator_applySourceMap(aSourceMapConsumer, aSourceFile) { - // If aSourceFile is omitted, we will use the file property of the SourceMap - if (!aSourceFile) { - aSourceFile = aSourceMapConsumer.file; - } - var sourceRoot = this._sourceRoot; - // Make "aSourceFile" relative if an absolute Url is passed. - if (sourceRoot) { - aSourceFile = util.relative(sourceRoot, aSourceFile); - } - // Applying the SourceMap can add and remove items from the sources and - // the names array. - var newSources = new ArraySet(); - var newNames = new ArraySet(); - - // Find mappings for the "aSourceFile" - this._mappings.forEach(function (mapping) { - if (mapping.source === aSourceFile && mapping.originalLine) { - // Check if it can be mapped by the source map, then update the mapping. - var original = aSourceMapConsumer.originalPositionFor({ - line: mapping.originalLine, - column: mapping.originalColumn - }); - if (original.source !== null) { - // Copy mapping - if (sourceRoot) { - mapping.source = util.relative(sourceRoot, original.source); - } else { - mapping.source = original.source; - } - mapping.originalLine = original.line; - mapping.originalColumn = original.column; - if (original.name !== null && mapping.name !== null) { - // Only use the identifier name if it's an identifier - // in both SourceMaps - mapping.name = original.name; - } - } - } - - var source = mapping.source; - if (source && !newSources.has(source)) { - newSources.add(source); - } - - var name = mapping.name; - if (name && !newNames.has(name)) { - newNames.add(name); - } - - }, this); - this._sources = newSources; - this._names = newNames; - - // Copy sourcesContents of applied map. - aSourceMapConsumer.sources.forEach(function (sourceFile) { - var content = aSourceMapConsumer.sourceContentFor(sourceFile); - if (content) { - if (sourceRoot) { - sourceFile = util.relative(sourceRoot, sourceFile); - } - this.setSourceContent(sourceFile, content); - } - }, this); - }; - - /** - * A mapping can have one of the three levels of data: - * - * 1. Just the generated position. - * 2. The Generated position, original position, and original source. - * 3. Generated and original position, original source, as well as a name - * token. - * - * To maintain consistency, we validate that any new mapping being added falls - * in to one of these categories. - */ - SourceMapGenerator.prototype._validateMapping = - function SourceMapGenerator_validateMapping(aGenerated, aOriginal, aSource, - aName) { - if (aGenerated && 'line' in aGenerated && 'column' in aGenerated - && aGenerated.line > 0 && aGenerated.column >= 0 - && !aOriginal && !aSource && !aName) { - // Case 1. - return; - } - else if (aGenerated && 'line' in aGenerated && 'column' in aGenerated - && aOriginal && 'line' in aOriginal && 'column' in aOriginal - && aGenerated.line > 0 && aGenerated.column >= 0 - && aOriginal.line > 0 && aOriginal.column >= 0 - && aSource) { - // Cases 2 and 3. - return; - } - else { - throw new Error('Invalid mapping: ' + JSON.stringify({ - generated: aGenerated, - source: aSource, - original: aOriginal, - name: aName - })); - } - }; - - /** - * Serialize the accumulated mappings in to the stream of base 64 VLQs - * specified by the source map format. - */ - SourceMapGenerator.prototype._serializeMappings = - function SourceMapGenerator_serializeMappings() { - var previousGeneratedColumn = 0; - var previousGeneratedLine = 1; - var previousOriginalColumn = 0; - var previousOriginalLine = 0; - var previousName = 0; - var previousSource = 0; - var result = ''; - var mapping; - - // The mappings must be guaranteed to be in sorted order before we start - // serializing them or else the generated line numbers (which are defined - // via the ';' separators) will be all messed up. Note: it might be more - // performant to maintain the sorting as we insert them, rather than as we - // serialize them, but the big O is the same either way. - this._mappings.sort(util.compareByGeneratedPositions); - - for (var i = 0, len = this._mappings.length; i < len; i++) { - mapping = this._mappings[i]; - - if (mapping.generatedLine !== previousGeneratedLine) { - previousGeneratedColumn = 0; - while (mapping.generatedLine !== previousGeneratedLine) { - result += ';'; - previousGeneratedLine++; - } - } - else { - if (i > 0) { - if (!util.compareByGeneratedPositions(mapping, this._mappings[i - 1])) { - continue; - } - result += ','; - } - } - - result += base64VLQ.encode(mapping.generatedColumn - - previousGeneratedColumn); - previousGeneratedColumn = mapping.generatedColumn; - - if (mapping.source) { - result += base64VLQ.encode(this._sources.indexOf(mapping.source) - - previousSource); - previousSource = this._sources.indexOf(mapping.source); - - // lines are stored 0-based in SourceMap spec version 3 - result += base64VLQ.encode(mapping.originalLine - 1 - - previousOriginalLine); - previousOriginalLine = mapping.originalLine - 1; - - result += base64VLQ.encode(mapping.originalColumn - - previousOriginalColumn); - previousOriginalColumn = mapping.originalColumn; - - if (mapping.name) { - result += base64VLQ.encode(this._names.indexOf(mapping.name) - - previousName); - previousName = this._names.indexOf(mapping.name); - } - } - } - - return result; - }; - - SourceMapGenerator.prototype._generateSourcesContent = - function SourceMapGenerator_generateSourcesContent(aSources, aSourceRoot) { - return aSources.map(function (source) { - if (!this._sourcesContents) { - return null; - } - if (aSourceRoot) { - source = util.relative(aSourceRoot, source); - } - var key = util.toSetString(source); - return Object.prototype.hasOwnProperty.call(this._sourcesContents, - key) - ? this._sourcesContents[key] - : null; - }, this); - }; - - /** - * Externalize the source map. - */ - SourceMapGenerator.prototype.toJSON = - function SourceMapGenerator_toJSON() { - var map = { - version: this._version, - file: this._file, - sources: this._sources.toArray(), - names: this._names.toArray(), - mappings: this._serializeMappings() - }; - if (this._sourceRoot) { - map.sourceRoot = this._sourceRoot; - } - if (this._sourcesContents) { - map.sourcesContent = this._generateSourcesContent(map.sources, map.sourceRoot); - } - - return map; - }; - - /** - * Render the source map being generated to a string. - */ - SourceMapGenerator.prototype.toString = - function SourceMapGenerator_toString() { - return JSON.stringify(this); - }; - - exports.SourceMapGenerator = SourceMapGenerator; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - * - * Based on the Base 64 VLQ implementation in Closure Compiler: - * https://code.google.com/p/closure-compiler/source/browse/trunk/src/com/google/debugging/sourcemap/Base64VLQ.java - * - * Copyright 2011 The Closure Compiler Authors. All rights reserved. - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following - * disclaimer in the documentation and/or other materials provided - * with the distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ -define('source-map/base64-vlq', ['require', 'exports', 'module' , 'source-map/base64'], function(require, exports, module) { - - var base64 = require('./base64'); - - // A single base 64 digit can contain 6 bits of data. For the base 64 variable - // length quantities we use in the source map spec, the first bit is the sign, - // the next four bits are the actual value, and the 6th bit is the - // continuation bit. The continuation bit tells us whether there are more - // digits in this value following this digit. - // - // Continuation - // | Sign - // | | - // V V - // 101011 - - var VLQ_BASE_SHIFT = 5; - - // binary: 100000 - var VLQ_BASE = 1 << VLQ_BASE_SHIFT; - - // binary: 011111 - var VLQ_BASE_MASK = VLQ_BASE - 1; - - // binary: 100000 - var VLQ_CONTINUATION_BIT = VLQ_BASE; - - /** - * Converts from a two-complement value to a value where the sign bit is - * is placed in the least significant bit. For example, as decimals: - * 1 becomes 2 (10 binary), -1 becomes 3 (11 binary) - * 2 becomes 4 (100 binary), -2 becomes 5 (101 binary) - */ - function toVLQSigned(aValue) { - return aValue < 0 - ? ((-aValue) << 1) + 1 - : (aValue << 1) + 0; - } - - /** - * Converts to a two-complement value from a value where the sign bit is - * is placed in the least significant bit. For example, as decimals: - * 2 (10 binary) becomes 1, 3 (11 binary) becomes -1 - * 4 (100 binary) becomes 2, 5 (101 binary) becomes -2 - */ - function fromVLQSigned(aValue) { - var isNegative = (aValue & 1) === 1; - var shifted = aValue >> 1; - return isNegative - ? -shifted - : shifted; - } - - /** - * Returns the base 64 VLQ encoded value. - */ - exports.encode = function base64VLQ_encode(aValue) { - var encoded = ""; - var digit; - - var vlq = toVLQSigned(aValue); - - do { - digit = vlq & VLQ_BASE_MASK; - vlq >>>= VLQ_BASE_SHIFT; - if (vlq > 0) { - // There are still more digits in this value, so we must make sure the - // continuation bit is marked. - digit |= VLQ_CONTINUATION_BIT; - } - encoded += base64.encode(digit); - } while (vlq > 0); - - return encoded; - }; - - /** - * Decodes the next base 64 VLQ value from the given string and returns the - * value and the rest of the string. - */ - exports.decode = function base64VLQ_decode(aStr) { - var i = 0; - var strLen = aStr.length; - var result = 0; - var shift = 0; - var continuation, digit; - - do { - if (i >= strLen) { - throw new Error("Expected more digits in base 64 VLQ value."); - } - digit = base64.decode(aStr.charAt(i++)); - continuation = !!(digit & VLQ_CONTINUATION_BIT); - digit &= VLQ_BASE_MASK; - result = result + (digit << shift); - shift += VLQ_BASE_SHIFT; - } while (continuation); - - return { - value: fromVLQSigned(result), - rest: aStr.slice(i) - }; - }; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/base64', ['require', 'exports', 'module' , ], function(require, exports, module) { - - var charToIntMap = {}; - var intToCharMap = {}; - - 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/' - .split('') - .forEach(function (ch, index) { - charToIntMap[ch] = index; - intToCharMap[index] = ch; - }); - - /** - * Encode an integer in the range of 0 to 63 to a single base 64 digit. - */ - exports.encode = function base64_encode(aNumber) { - if (aNumber in intToCharMap) { - return intToCharMap[aNumber]; - } - throw new TypeError("Must be between 0 and 63: " + aNumber); - }; - - /** - * Decode a single base 64 digit to an integer. - */ - exports.decode = function base64_decode(aChar) { - if (aChar in charToIntMap) { - return charToIntMap[aChar]; - } - throw new TypeError("Not a valid base 64 digit: " + aChar); - }; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/util', ['require', 'exports', 'module' , ], function(require, exports, module) { - - /** - * This is a helper function for getting values from parameter/options - * objects. - * - * @param args The object we are extracting values from - * @param name The name of the property we are getting. - * @param defaultValue An optional value to return if the property is missing - * from the object. If this is not specified and the property is missing, an - * error will be thrown. - */ - function getArg(aArgs, aName, aDefaultValue) { - if (aName in aArgs) { - return aArgs[aName]; - } else if (arguments.length === 3) { - return aDefaultValue; - } else { - throw new Error('"' + aName + '" is a required argument.'); - } - } - exports.getArg = getArg; - - var urlRegexp = /([\w+\-.]+):\/\/((\w+:\w+)@)?([\w.]+)?(:(\d+))?(\S+)?/; - var dataUrlRegexp = /^data:.+\,.+/; - - function urlParse(aUrl) { - var match = aUrl.match(urlRegexp); - if (!match) { - return null; - } - return { - scheme: match[1], - auth: match[3], - host: match[4], - port: match[6], - path: match[7] - }; - } - exports.urlParse = urlParse; - - function urlGenerate(aParsedUrl) { - var url = aParsedUrl.scheme + "://"; - if (aParsedUrl.auth) { - url += aParsedUrl.auth + "@" - } - if (aParsedUrl.host) { - url += aParsedUrl.host; - } - if (aParsedUrl.port) { - url += ":" + aParsedUrl.port - } - if (aParsedUrl.path) { - url += aParsedUrl.path; - } - return url; - } - exports.urlGenerate = urlGenerate; - - function join(aRoot, aPath) { - var url; - - if (aPath.match(urlRegexp) || aPath.match(dataUrlRegexp)) { - return aPath; - } - - if (aPath.charAt(0) === '/' && (url = urlParse(aRoot))) { - url.path = aPath; - return urlGenerate(url); - } - - return aRoot.replace(/\/$/, '') + '/' + aPath; - } - exports.join = join; - - /** - * Because behavior goes wacky when you set `__proto__` on objects, we - * have to prefix all the strings in our set with an arbitrary character. - * - * See https://github.com/mozilla/source-map/pull/31 and - * https://github.com/mozilla/source-map/issues/30 - * - * @param String aStr - */ - function toSetString(aStr) { - return '$' + aStr; - } - exports.toSetString = toSetString; - - function fromSetString(aStr) { - return aStr.substr(1); - } - exports.fromSetString = fromSetString; - - function relative(aRoot, aPath) { - aRoot = aRoot.replace(/\/$/, ''); - - var url = urlParse(aRoot); - if (aPath.charAt(0) == "/" && url && url.path == "/") { - return aPath.slice(1); - } - - return aPath.indexOf(aRoot + '/') === 0 - ? aPath.substr(aRoot.length + 1) - : aPath; - } - exports.relative = relative; - - function strcmp(aStr1, aStr2) { - var s1 = aStr1 || ""; - var s2 = aStr2 || ""; - return (s1 > s2) - (s1 < s2); - } - - /** - * Comparator between two mappings where the original positions are compared. - * - * Optionally pass in `true` as `onlyCompareGenerated` to consider two - * mappings with the same original source/line/column, but different generated - * line and column the same. Useful when searching for a mapping with a - * stubbed out mapping. - */ - function compareByOriginalPositions(mappingA, mappingB, onlyCompareOriginal) { - var cmp; - - cmp = strcmp(mappingA.source, mappingB.source); - if (cmp) { - return cmp; - } - - cmp = mappingA.originalLine - mappingB.originalLine; - if (cmp) { - return cmp; - } - - cmp = mappingA.originalColumn - mappingB.originalColumn; - if (cmp || onlyCompareOriginal) { - return cmp; - } - - cmp = strcmp(mappingA.name, mappingB.name); - if (cmp) { - return cmp; - } - - cmp = mappingA.generatedLine - mappingB.generatedLine; - if (cmp) { - return cmp; - } - - return mappingA.generatedColumn - mappingB.generatedColumn; - }; - exports.compareByOriginalPositions = compareByOriginalPositions; - - /** - * Comparator between two mappings where the generated positions are - * compared. - * - * Optionally pass in `true` as `onlyCompareGenerated` to consider two - * mappings with the same generated line and column, but different - * source/name/original line and column the same. Useful when searching for a - * mapping with a stubbed out mapping. - */ - function compareByGeneratedPositions(mappingA, mappingB, onlyCompareGenerated) { - var cmp; - - cmp = mappingA.generatedLine - mappingB.generatedLine; - if (cmp) { - return cmp; - } - - cmp = mappingA.generatedColumn - mappingB.generatedColumn; - if (cmp || onlyCompareGenerated) { - return cmp; - } - - cmp = strcmp(mappingA.source, mappingB.source); - if (cmp) { - return cmp; - } - - cmp = mappingA.originalLine - mappingB.originalLine; - if (cmp) { - return cmp; - } - - cmp = mappingA.originalColumn - mappingB.originalColumn; - if (cmp) { - return cmp; - } - - return strcmp(mappingA.name, mappingB.name); - }; - exports.compareByGeneratedPositions = compareByGeneratedPositions; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/array-set', ['require', 'exports', 'module' , 'source-map/util'], function(require, exports, module) { - - var util = require('./util'); - - /** - * A data structure which is a combination of an array and a set. Adding a new - * member is O(1), testing for membership is O(1), and finding the index of an - * element is O(1). Removing elements from the set is not supported. Only - * strings are supported for membership. - */ - function ArraySet() { - this._array = []; - this._set = {}; - } - - /** - * Static method for creating ArraySet instances from an existing array. - */ - ArraySet.fromArray = function ArraySet_fromArray(aArray, aAllowDuplicates) { - var set = new ArraySet(); - for (var i = 0, len = aArray.length; i < len; i++) { - set.add(aArray[i], aAllowDuplicates); - } - return set; - }; - - /** - * Add the given string to this set. - * - * @param String aStr - */ - ArraySet.prototype.add = function ArraySet_add(aStr, aAllowDuplicates) { - var isDuplicate = this.has(aStr); - var idx = this._array.length; - if (!isDuplicate || aAllowDuplicates) { - this._array.push(aStr); - } - if (!isDuplicate) { - this._set[util.toSetString(aStr)] = idx; - } - }; - - /** - * Is the given string a member of this set? - * - * @param String aStr - */ - ArraySet.prototype.has = function ArraySet_has(aStr) { - return Object.prototype.hasOwnProperty.call(this._set, - util.toSetString(aStr)); - }; - - /** - * What is the index of the given string in the array? - * - * @param String aStr - */ - ArraySet.prototype.indexOf = function ArraySet_indexOf(aStr) { - if (this.has(aStr)) { - return this._set[util.toSetString(aStr)]; - } - throw new Error('"' + aStr + '" is not in the set.'); - }; - - /** - * What is the element at the given index? - * - * @param Number aIdx - */ - ArraySet.prototype.at = function ArraySet_at(aIdx) { - if (aIdx >= 0 && aIdx < this._array.length) { - return this._array[aIdx]; - } - throw new Error('No element indexed by ' + aIdx); - }; - - /** - * Returns the array representation of this set (which has the proper indices - * indicated by indexOf). Note that this is a copy of the internal array used - * for storing the members so that no one can mess with internal state. - */ - ArraySet.prototype.toArray = function ArraySet_toArray() { - return this._array.slice(); - }; - - exports.ArraySet = ArraySet; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/source-map-consumer', ['require', 'exports', 'module' , 'source-map/util', 'source-map/binary-search', 'source-map/array-set', 'source-map/base64-vlq'], function(require, exports, module) { - - var util = require('./util'); - var binarySearch = require('./binary-search'); - var ArraySet = require('./array-set').ArraySet; - var base64VLQ = require('./base64-vlq'); - - /** - * A SourceMapConsumer instance represents a parsed source map which we can - * query for information about the original file positions by giving it a file - * position in the generated source. - * - * The only parameter is the raw source map (either as a JSON string, or - * already parsed to an object). According to the spec, source maps have the - * following attributes: - * - * - version: Which version of the source map spec this map is following. - * - sources: An array of URLs to the original source files. - * - names: An array of identifiers which can be referrenced by individual mappings. - * - sourceRoot: Optional. The URL root from which all sources are relative. - * - sourcesContent: Optional. An array of contents of the original source files. - * - mappings: A string of base64 VLQs which contain the actual mappings. - * - file: The generated file this source map is associated with. - * - * Here is an example source map, taken from the source map spec[0]: - * - * { - * version : 3, - * file: "out.js", - * sourceRoot : "", - * sources: ["foo.js", "bar.js"], - * names: ["src", "maps", "are", "fun"], - * mappings: "AA,AB;;ABCDE;" - * } - * - * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit?pli=1# - */ - function SourceMapConsumer(aSourceMap) { - var sourceMap = aSourceMap; - if (typeof aSourceMap === 'string') { - sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, '')); - } - - var version = util.getArg(sourceMap, 'version'); - var sources = util.getArg(sourceMap, 'sources'); - // Sass 3.3 leaves out the 'names' array, so we deviate from the spec (which - // requires the array) to play nice here. - var names = util.getArg(sourceMap, 'names', []); - var sourceRoot = util.getArg(sourceMap, 'sourceRoot', null); - var sourcesContent = util.getArg(sourceMap, 'sourcesContent', null); - var mappings = util.getArg(sourceMap, 'mappings'); - var file = util.getArg(sourceMap, 'file', null); - - // Once again, Sass deviates from the spec and supplies the version as a - // string rather than a number, so we use loose equality checking here. - if (version != this._version) { - throw new Error('Unsupported version: ' + version); - } - - // Pass `true` below to allow duplicate names and sources. While source maps - // are intended to be compressed and deduplicated, the TypeScript compiler - // sometimes generates source maps with duplicates in them. See Github issue - // #72 and bugzil.la/889492. - this._names = ArraySet.fromArray(names, true); - this._sources = ArraySet.fromArray(sources, true); - - this.sourceRoot = sourceRoot; - this.sourcesContent = sourcesContent; - this._mappings = mappings; - this.file = file; - } - - /** - * Create a SourceMapConsumer from a SourceMapGenerator. - * - * @param SourceMapGenerator aSourceMap - * The source map that will be consumed. - * @returns SourceMapConsumer - */ - SourceMapConsumer.fromSourceMap = - function SourceMapConsumer_fromSourceMap(aSourceMap) { - var smc = Object.create(SourceMapConsumer.prototype); - - smc._names = ArraySet.fromArray(aSourceMap._names.toArray(), true); - smc._sources = ArraySet.fromArray(aSourceMap._sources.toArray(), true); - smc.sourceRoot = aSourceMap._sourceRoot; - smc.sourcesContent = aSourceMap._generateSourcesContent(smc._sources.toArray(), - smc.sourceRoot); - smc.file = aSourceMap._file; - - smc.__generatedMappings = aSourceMap._mappings.slice() - .sort(util.compareByGeneratedPositions); - smc.__originalMappings = aSourceMap._mappings.slice() - .sort(util.compareByOriginalPositions); - - return smc; - }; - - /** - * The version of the source mapping spec that we are consuming. - */ - SourceMapConsumer.prototype._version = 3; - - /** - * The list of original sources. - */ - Object.defineProperty(SourceMapConsumer.prototype, 'sources', { - get: function () { - return this._sources.toArray().map(function (s) { - return this.sourceRoot ? util.join(this.sourceRoot, s) : s; - }, this); - } - }); - - // `__generatedMappings` and `__originalMappings` are arrays that hold the - // parsed mapping coordinates from the source map's "mappings" attribute. They - // are lazily instantiated, accessed via the `_generatedMappings` and - // `_originalMappings` getters respectively, and we only parse the mappings - // and create these arrays once queried for a source location. We jump through - // these hoops because there can be many thousands of mappings, and parsing - // them is expensive, so we only want to do it if we must. - // - // Each object in the arrays is of the form: - // - // { - // generatedLine: The line number in the generated code, - // generatedColumn: The column number in the generated code, - // source: The path to the original source file that generated this - // chunk of code, - // originalLine: The line number in the original source that - // corresponds to this chunk of generated code, - // originalColumn: The column number in the original source that - // corresponds to this chunk of generated code, - // name: The name of the original symbol which generated this chunk of - // code. - // } - // - // All properties except for `generatedLine` and `generatedColumn` can be - // `null`. - // - // `_generatedMappings` is ordered by the generated positions. - // - // `_originalMappings` is ordered by the original positions. - - SourceMapConsumer.prototype.__generatedMappings = null; - Object.defineProperty(SourceMapConsumer.prototype, '_generatedMappings', { - get: function () { - if (!this.__generatedMappings) { - this.__generatedMappings = []; - this.__originalMappings = []; - this._parseMappings(this._mappings, this.sourceRoot); - } - - return this.__generatedMappings; - } - }); - - SourceMapConsumer.prototype.__originalMappings = null; - Object.defineProperty(SourceMapConsumer.prototype, '_originalMappings', { - get: function () { - if (!this.__originalMappings) { - this.__generatedMappings = []; - this.__originalMappings = []; - this._parseMappings(this._mappings, this.sourceRoot); - } - - return this.__originalMappings; - } - }); - - /** - * Parse the mappings in a string in to a data structure which we can easily - * query (the ordered arrays in the `this.__generatedMappings` and - * `this.__originalMappings` properties). - */ - SourceMapConsumer.prototype._parseMappings = - function SourceMapConsumer_parseMappings(aStr, aSourceRoot) { - var generatedLine = 1; - var previousGeneratedColumn = 0; - var previousOriginalLine = 0; - var previousOriginalColumn = 0; - var previousSource = 0; - var previousName = 0; - var mappingSeparator = /^[,;]/; - var str = aStr; - var mapping; - var temp; - - while (str.length > 0) { - if (str.charAt(0) === ';') { - generatedLine++; - str = str.slice(1); - previousGeneratedColumn = 0; - } - else if (str.charAt(0) === ',') { - str = str.slice(1); - } - else { - mapping = {}; - mapping.generatedLine = generatedLine; - - // Generated column. - temp = base64VLQ.decode(str); - mapping.generatedColumn = previousGeneratedColumn + temp.value; - previousGeneratedColumn = mapping.generatedColumn; - str = temp.rest; - - if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) { - // Original source. - temp = base64VLQ.decode(str); - mapping.source = this._sources.at(previousSource + temp.value); - previousSource += temp.value; - str = temp.rest; - if (str.length === 0 || mappingSeparator.test(str.charAt(0))) { - throw new Error('Found a source, but no line and column'); - } - - // Original line. - temp = base64VLQ.decode(str); - mapping.originalLine = previousOriginalLine + temp.value; - previousOriginalLine = mapping.originalLine; - // Lines are stored 0-based - mapping.originalLine += 1; - str = temp.rest; - if (str.length === 0 || mappingSeparator.test(str.charAt(0))) { - throw new Error('Found a source and line, but no column'); - } - - // Original column. - temp = base64VLQ.decode(str); - mapping.originalColumn = previousOriginalColumn + temp.value; - previousOriginalColumn = mapping.originalColumn; - str = temp.rest; - - if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) { - // Original name. - temp = base64VLQ.decode(str); - mapping.name = this._names.at(previousName + temp.value); - previousName += temp.value; - str = temp.rest; - } - } - - this.__generatedMappings.push(mapping); - if (typeof mapping.originalLine === 'number') { - this.__originalMappings.push(mapping); - } - } - } - - this.__originalMappings.sort(util.compareByOriginalPositions); - }; - - /** - * Find the mapping that best matches the hypothetical "needle" mapping that - * we are searching for in the given "haystack" of mappings. - */ - SourceMapConsumer.prototype._findMapping = - function SourceMapConsumer_findMapping(aNeedle, aMappings, aLineName, - aColumnName, aComparator) { - // To return the position we are searching for, we must first find the - // mapping for the given position and then return the opposite position it - // points to. Because the mappings are sorted, we can use binary search to - // find the best mapping. - - if (aNeedle[aLineName] <= 0) { - throw new TypeError('Line must be greater than or equal to 1, got ' - + aNeedle[aLineName]); - } - if (aNeedle[aColumnName] < 0) { - throw new TypeError('Column must be greater than or equal to 0, got ' - + aNeedle[aColumnName]); - } - - return binarySearch.search(aNeedle, aMappings, aComparator); - }; - - /** - * Returns the original source, line, and column information for the generated - * source's line and column positions provided. The only argument is an object - * with the following properties: - * - * - line: The line number in the generated source. - * - column: The column number in the generated source. - * - * and an object is returned with the following properties: - * - * - source: The original source file, or null. - * - line: The line number in the original source, or null. - * - column: The column number in the original source, or null. - * - name: The original identifier, or null. - */ - SourceMapConsumer.prototype.originalPositionFor = - function SourceMapConsumer_originalPositionFor(aArgs) { - var needle = { - generatedLine: util.getArg(aArgs, 'line'), - generatedColumn: util.getArg(aArgs, 'column') - }; - - var mapping = this._findMapping(needle, - this._generatedMappings, - "generatedLine", - "generatedColumn", - util.compareByGeneratedPositions); - - if (mapping) { - var source = util.getArg(mapping, 'source', null); - if (source && this.sourceRoot) { - source = util.join(this.sourceRoot, source); - } - return { - source: source, - line: util.getArg(mapping, 'originalLine', null), - column: util.getArg(mapping, 'originalColumn', null), - name: util.getArg(mapping, 'name', null) - }; - } - - return { - source: null, - line: null, - column: null, - name: null - }; - }; - - /** - * Returns the original source content. The only argument is the url of the - * original source file. Returns null if no original source content is - * availible. - */ - SourceMapConsumer.prototype.sourceContentFor = - function SourceMapConsumer_sourceContentFor(aSource) { - if (!this.sourcesContent) { - return null; - } - - if (this.sourceRoot) { - aSource = util.relative(this.sourceRoot, aSource); - } - - if (this._sources.has(aSource)) { - return this.sourcesContent[this._sources.indexOf(aSource)]; - } - - var url; - if (this.sourceRoot - && (url = util.urlParse(this.sourceRoot))) { - // XXX: file:// URIs and absolute paths lead to unexpected behavior for - // many users. We can help them out when they expect file:// URIs to - // behave like it would if they were running a local HTTP server. See - // https://bugzilla.mozilla.org/show_bug.cgi?id=885597. - var fileUriAbsPath = aSource.replace(/^file:\/\//, ""); - if (url.scheme == "file" - && this._sources.has(fileUriAbsPath)) { - return this.sourcesContent[this._sources.indexOf(fileUriAbsPath)] - } - - if ((!url.path || url.path == "/") - && this._sources.has("/" + aSource)) { - return this.sourcesContent[this._sources.indexOf("/" + aSource)]; - } - } - - throw new Error('"' + aSource + '" is not in the SourceMap.'); - }; - - /** - * Returns the generated line and column information for the original source, - * line, and column positions provided. The only argument is an object with - * the following properties: - * - * - source: The filename of the original source. - * - line: The line number in the original source. - * - column: The column number in the original source. - * - * and an object is returned with the following properties: - * - * - line: The line number in the generated source, or null. - * - column: The column number in the generated source, or null. - */ - SourceMapConsumer.prototype.generatedPositionFor = - function SourceMapConsumer_generatedPositionFor(aArgs) { - var needle = { - source: util.getArg(aArgs, 'source'), - originalLine: util.getArg(aArgs, 'line'), - originalColumn: util.getArg(aArgs, 'column') - }; - - if (this.sourceRoot) { - needle.source = util.relative(this.sourceRoot, needle.source); - } - - var mapping = this._findMapping(needle, - this._originalMappings, - "originalLine", - "originalColumn", - util.compareByOriginalPositions); - - if (mapping) { - return { - line: util.getArg(mapping, 'generatedLine', null), - column: util.getArg(mapping, 'generatedColumn', null) - }; - } - - return { - line: null, - column: null - }; - }; - - SourceMapConsumer.GENERATED_ORDER = 1; - SourceMapConsumer.ORIGINAL_ORDER = 2; - - /** - * Iterate over each mapping between an original source/line/column and a - * generated line/column in this source map. - * - * @param Function aCallback - * The function that is called with each mapping. - * @param Object aContext - * Optional. If specified, this object will be the value of `this` every - * time that `aCallback` is called. - * @param aOrder - * Either `SourceMapConsumer.GENERATED_ORDER` or - * `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to - * iterate over the mappings sorted by the generated file's line/column - * order or the original's source/line/column order, respectively. Defaults to - * `SourceMapConsumer.GENERATED_ORDER`. - */ - SourceMapConsumer.prototype.eachMapping = - function SourceMapConsumer_eachMapping(aCallback, aContext, aOrder) { - var context = aContext || null; - var order = aOrder || SourceMapConsumer.GENERATED_ORDER; - - var mappings; - switch (order) { - case SourceMapConsumer.GENERATED_ORDER: - mappings = this._generatedMappings; - break; - case SourceMapConsumer.ORIGINAL_ORDER: - mappings = this._originalMappings; - break; - default: - throw new Error("Unknown order of iteration."); - } - - var sourceRoot = this.sourceRoot; - mappings.map(function (mapping) { - var source = mapping.source; - if (source && sourceRoot) { - source = util.join(sourceRoot, source); - } - return { - source: source, - generatedLine: mapping.generatedLine, - generatedColumn: mapping.generatedColumn, - originalLine: mapping.originalLine, - originalColumn: mapping.originalColumn, - name: mapping.name - }; - }).forEach(aCallback, context); - }; - - exports.SourceMapConsumer = SourceMapConsumer; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/binary-search', ['require', 'exports', 'module' , ], function(require, exports, module) { - - /** - * Recursive implementation of binary search. - * - * @param aLow Indices here and lower do not contain the needle. - * @param aHigh Indices here and higher do not contain the needle. - * @param aNeedle The element being searched for. - * @param aHaystack The non-empty array being searched. - * @param aCompare Function which takes two elements and returns -1, 0, or 1. - */ - function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare) { - // This function terminates when one of the following is true: - // - // 1. We find the exact element we are looking for. - // - // 2. We did not find the exact element, but we can return the next - // closest element that is less than that element. - // - // 3. We did not find the exact element, and there is no next-closest - // element which is less than the one we are searching for, so we - // return null. - var mid = Math.floor((aHigh - aLow) / 2) + aLow; - var cmp = aCompare(aNeedle, aHaystack[mid], true); - if (cmp === 0) { - // Found the element we are looking for. - return aHaystack[mid]; - } - else if (cmp > 0) { - // aHaystack[mid] is greater than our needle. - if (aHigh - mid > 1) { - // The element is in the upper half. - return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare); - } - // We did not find an exact match, return the next closest one - // (termination case 2). - return aHaystack[mid]; - } - else { - // aHaystack[mid] is less than our needle. - if (mid - aLow > 1) { - // The element is in the lower half. - return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare); - } - // The exact needle element was not found in this haystack. Determine if - // we are in termination case (2) or (3) and return the appropriate thing. - return aLow < 0 - ? null - : aHaystack[aLow]; - } - } - - /** - * This is an implementation of binary search which will always try and return - * the next lowest value checked if there is no exact hit. This is because - * mappings between original and generated line/col pairs are single points, - * and there is an implicit region between each of them, so a miss just means - * that you aren't on the very start of a region. - * - * @param aNeedle The element you are looking for. - * @param aHaystack The array that is being searched. - * @param aCompare A function which takes the needle and an element in the - * array and returns -1, 0, or 1 depending on whether the needle is less - * than, equal to, or greater than the element, respectively. - */ - exports.search = function search(aNeedle, aHaystack, aCompare) { - return aHaystack.length > 0 - ? recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack, aCompare) - : null; - }; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/source-node', ['require', 'exports', 'module' , 'source-map/source-map-generator', 'source-map/util'], function(require, exports, module) { - - var SourceMapGenerator = require('./source-map-generator').SourceMapGenerator; - var util = require('./util'); - - /** - * SourceNodes provide a way to abstract over interpolating/concatenating - * snippets of generated JavaScript source code while maintaining the line and - * column information associated with the original source code. - * - * @param aLine The original line number. - * @param aColumn The original column number. - * @param aSource The original source's filename. - * @param aChunks Optional. An array of strings which are snippets of - * generated JS, or other SourceNodes. - * @param aName The original identifier. - */ - function SourceNode(aLine, aColumn, aSource, aChunks, aName) { - this.children = []; - this.sourceContents = {}; - this.line = aLine === undefined ? null : aLine; - this.column = aColumn === undefined ? null : aColumn; - this.source = aSource === undefined ? null : aSource; - this.name = aName === undefined ? null : aName; - if (aChunks != null) this.add(aChunks); - } - - /** - * Creates a SourceNode from generated code and a SourceMapConsumer. - * - * @param aGeneratedCode The generated code - * @param aSourceMapConsumer The SourceMap for the generated code - */ - SourceNode.fromStringWithSourceMap = - function SourceNode_fromStringWithSourceMap(aGeneratedCode, aSourceMapConsumer) { - // The SourceNode we want to fill with the generated code - // and the SourceMap - var node = new SourceNode(); - - // The generated code - // Processed fragments are removed from this array. - var remainingLines = aGeneratedCode.split('\n'); - - // We need to remember the position of "remainingLines" - var lastGeneratedLine = 1, lastGeneratedColumn = 0; - - // The generate SourceNodes we need a code range. - // To extract it current and last mapping is used. - // Here we store the last mapping. - var lastMapping = null; - - aSourceMapConsumer.eachMapping(function (mapping) { - if (lastMapping === null) { - // We add the generated code until the first mapping - // to the SourceNode without any mapping. - // Each line is added as separate string. - while (lastGeneratedLine < mapping.generatedLine) { - node.add(remainingLines.shift() + "\n"); - lastGeneratedLine++; - } - if (lastGeneratedColumn < mapping.generatedColumn) { - var nextLine = remainingLines[0]; - node.add(nextLine.substr(0, mapping.generatedColumn)); - remainingLines[0] = nextLine.substr(mapping.generatedColumn); - lastGeneratedColumn = mapping.generatedColumn; - } - } else { - // We add the code from "lastMapping" to "mapping": - // First check if there is a new line in between. - if (lastGeneratedLine < mapping.generatedLine) { - var code = ""; - // Associate full lines with "lastMapping" - do { - code += remainingLines.shift() + "\n"; - lastGeneratedLine++; - lastGeneratedColumn = 0; - } while (lastGeneratedLine < mapping.generatedLine); - // When we reached the correct line, we add code until we - // reach the correct column too. - if (lastGeneratedColumn < mapping.generatedColumn) { - var nextLine = remainingLines[0]; - code += nextLine.substr(0, mapping.generatedColumn); - remainingLines[0] = nextLine.substr(mapping.generatedColumn); - lastGeneratedColumn = mapping.generatedColumn; - } - // Create the SourceNode. - addMappingWithCode(lastMapping, code); - } else { - // There is no new line in between. - // Associate the code between "lastGeneratedColumn" and - // "mapping.generatedColumn" with "lastMapping" - var nextLine = remainingLines[0]; - var code = nextLine.substr(0, mapping.generatedColumn - - lastGeneratedColumn); - remainingLines[0] = nextLine.substr(mapping.generatedColumn - - lastGeneratedColumn); - lastGeneratedColumn = mapping.generatedColumn; - addMappingWithCode(lastMapping, code); - } - } - lastMapping = mapping; - }, this); - // We have processed all mappings. - // Associate the remaining code in the current line with "lastMapping" - // and add the remaining lines without any mapping - addMappingWithCode(lastMapping, remainingLines.join("\n")); - - // Copy sourcesContent into SourceNode - aSourceMapConsumer.sources.forEach(function (sourceFile) { - var content = aSourceMapConsumer.sourceContentFor(sourceFile); - if (content) { - node.setSourceContent(sourceFile, content); - } - }); - - return node; - - function addMappingWithCode(mapping, code) { - if (mapping === null || mapping.source === undefined) { - node.add(code); - } else { - node.add(new SourceNode(mapping.originalLine, - mapping.originalColumn, - mapping.source, - code, - mapping.name)); - } - } - }; - - /** - * Add a chunk of generated JS to this source node. - * - * @param aChunk A string snippet of generated JS code, another instance of - * SourceNode, or an array where each member is one of those things. - */ - SourceNode.prototype.add = function SourceNode_add(aChunk) { - if (Array.isArray(aChunk)) { - aChunk.forEach(function (chunk) { - this.add(chunk); - }, this); - } - else if (aChunk instanceof SourceNode || typeof aChunk === "string") { - if (aChunk) { - this.children.push(aChunk); - } - } - else { - throw new TypeError( - "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk - ); - } - return this; - }; - - /** - * Add a chunk of generated JS to the beginning of this source node. - * - * @param aChunk A string snippet of generated JS code, another instance of - * SourceNode, or an array where each member is one of those things. - */ - SourceNode.prototype.prepend = function SourceNode_prepend(aChunk) { - if (Array.isArray(aChunk)) { - for (var i = aChunk.length-1; i >= 0; i--) { - this.prepend(aChunk[i]); - } - } - else if (aChunk instanceof SourceNode || typeof aChunk === "string") { - this.children.unshift(aChunk); - } - else { - throw new TypeError( - "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk - ); - } - return this; - }; - - /** - * Walk over the tree of JS snippets in this node and its children. The - * walking function is called once for each snippet of JS and is passed that - * snippet and the its original associated source's line/column location. - * - * @param aFn The traversal function. - */ - SourceNode.prototype.walk = function SourceNode_walk(aFn) { - var chunk; - for (var i = 0, len = this.children.length; i < len; i++) { - chunk = this.children[i]; - if (chunk instanceof SourceNode) { - chunk.walk(aFn); - } - else { - if (chunk !== '') { - aFn(chunk, { source: this.source, - line: this.line, - column: this.column, - name: this.name }); - } - } - } - }; - - /** - * Like `String.prototype.join` except for SourceNodes. Inserts `aStr` between - * each of `this.children`. - * - * @param aSep The separator. - */ - SourceNode.prototype.join = function SourceNode_join(aSep) { - var newChildren; - var i; - var len = this.children.length; - if (len > 0) { - newChildren = []; - for (i = 0; i < len-1; i++) { - newChildren.push(this.children[i]); - newChildren.push(aSep); - } - newChildren.push(this.children[i]); - this.children = newChildren; - } - return this; - }; - - /** - * Call String.prototype.replace on the very right-most source snippet. Useful - * for trimming whitespace from the end of a source node, etc. - * - * @param aPattern The pattern to replace. - * @param aReplacement The thing to replace the pattern with. - */ - SourceNode.prototype.replaceRight = function SourceNode_replaceRight(aPattern, aReplacement) { - var lastChild = this.children[this.children.length - 1]; - if (lastChild instanceof SourceNode) { - lastChild.replaceRight(aPattern, aReplacement); - } - else if (typeof lastChild === 'string') { - this.children[this.children.length - 1] = lastChild.replace(aPattern, aReplacement); - } - else { - this.children.push(''.replace(aPattern, aReplacement)); - } - return this; - }; - - /** - * Set the source content for a source file. This will be added to the SourceMapGenerator - * in the sourcesContent field. - * - * @param aSourceFile The filename of the source file - * @param aSourceContent The content of the source file - */ - SourceNode.prototype.setSourceContent = - function SourceNode_setSourceContent(aSourceFile, aSourceContent) { - this.sourceContents[util.toSetString(aSourceFile)] = aSourceContent; - }; - - /** - * Walk over the tree of SourceNodes. The walking function is called for each - * source file content and is passed the filename and source content. - * - * @param aFn The traversal function. - */ - SourceNode.prototype.walkSourceContents = - function SourceNode_walkSourceContents(aFn) { - for (var i = 0, len = this.children.length; i < len; i++) { - if (this.children[i] instanceof SourceNode) { - this.children[i].walkSourceContents(aFn); - } - } - - var sources = Object.keys(this.sourceContents); - for (var i = 0, len = sources.length; i < len; i++) { - aFn(util.fromSetString(sources[i]), this.sourceContents[sources[i]]); - } - }; - - /** - * Return the string representation of this source node. Walks over the tree - * and concatenates all the various snippets together to one string. - */ - SourceNode.prototype.toString = function SourceNode_toString() { - var str = ""; - this.walk(function (chunk) { - str += chunk; - }); - return str; - }; - - /** - * Returns the string representation of this source node along with a source - * map. - */ - SourceNode.prototype.toStringWithSourceMap = function SourceNode_toStringWithSourceMap(aArgs) { - var generated = { - code: "", - line: 1, - column: 0 - }; - var map = new SourceMapGenerator(aArgs); - var sourceMappingActive = false; - var lastOriginalSource = null; - var lastOriginalLine = null; - var lastOriginalColumn = null; - var lastOriginalName = null; - this.walk(function (chunk, original) { - generated.code += chunk; - if (original.source !== null - && original.line !== null - && original.column !== null) { - if(lastOriginalSource !== original.source - || lastOriginalLine !== original.line - || lastOriginalColumn !== original.column - || lastOriginalName !== original.name) { - map.addMapping({ - source: original.source, - original: { - line: original.line, - column: original.column - }, - generated: { - line: generated.line, - column: generated.column - }, - name: original.name - }); - } - lastOriginalSource = original.source; - lastOriginalLine = original.line; - lastOriginalColumn = original.column; - lastOriginalName = original.name; - sourceMappingActive = true; - } else if (sourceMappingActive) { - map.addMapping({ - generated: { - line: generated.line, - column: generated.column - } - }); - lastOriginalSource = null; - sourceMappingActive = false; - } - chunk.split('').forEach(function (ch) { - if (ch === '\n') { - generated.line++; - generated.column = 0; - } else { - generated.column++; - } - }); - }); - this.walkSourceContents(function (sourceFile, sourceContent) { - map.setSourceContent(sourceFile, sourceContent); - }); - - return { code: generated.code, map: map }; - }; - - exports.SourceNode = SourceNode; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/////////////////////////////////////////////////////////////////////////////// - -this.sourceMap = { - SourceMapConsumer: require('source-map/source-map-consumer').SourceMapConsumer, - SourceMapGenerator: require('source-map/source-map-generator').SourceMapGenerator, - SourceNode: require('source-map/source-node').SourceNode -}; - -// footer to wrap "source-map" module - return this.sourceMap; - }(); -})(); \ No newline at end of file diff --git a/awx/ui/static/lib/less/dist/less-rhino-1.7.4.js b/awx/ui/static/lib/less/dist/less-rhino-1.7.4.js deleted file mode 100644 index 1f2f17d077..0000000000 --- a/awx/ui/static/lib/less/dist/less-rhino-1.7.4.js +++ /dev/null @@ -1,9354 +0,0 @@ -/* Less.js v1.7.4 RHINO | Copyright (c) 2009-2014, Alexis Sellier */ - -// -// Stub out `require` in rhino -// -function require(arg) { - var split = arg.split('/'); - var resultModule = split.length == 1 ? less.modules[split[0]] : less[split[1]]; - if (!resultModule) { - throw { message: "Cannot find module '" + arg + "'"}; - } - return resultModule; -} - - -if (typeof(window) === 'undefined') { less = {} } -else { less = window.less = {} } -tree = less.tree = {}; -less.mode = 'rhino'; - -(function() { - - console = function() { - var stdout = java.lang.System.out; - var stderr = java.lang.System.err; - - function doLog(out, type) { - return function() { - var args = java.lang.reflect.Array.newInstance(java.lang.Object, arguments.length - 1); - var format = arguments[0]; - var conversionIndex = 0; - // need to look for %d (integer) conversions because in Javascript all numbers are doubles - for (var i = 1; i < arguments.length; i++) { - var arg = arguments[i]; - if (conversionIndex != -1) { - conversionIndex = format.indexOf('%', conversionIndex); - } - if (conversionIndex >= 0 && conversionIndex < format.length) { - var conversion = format.charAt(conversionIndex + 1); - if (conversion === 'd' && typeof arg === 'number') { - arg = new java.lang.Integer(new java.lang.Double(arg).intValue()); - } - conversionIndex++; - } - args[i-1] = arg; - } - try { - out.println(type + java.lang.String.format(format, args)); - } catch(ex) { - stderr.println(ex); - } - } - } - return { - log: doLog(stdout, ''), - info: doLog(stdout, 'INFO: '), - error: doLog(stderr, 'ERROR: '), - warn: doLog(stderr, 'WARN: ') - }; - }(); - - less.modules = {}; - - less.modules.path = { - join: function() { - var parts = []; - for (i in arguments) { - parts = parts.concat(arguments[i].split(/\/|\\/)); - } - var result = []; - for (i in parts) { - var part = parts[i]; - if (part === '..' && result.length > 0 && result[result.length-1] !== '..') { - result.pop(); - } else if (part === '' && result.length > 0) { - // skip - } else if (part !== '.') { - if (part.slice(-1)==='\\' || part.slice(-1)==='/') { - part = part.slice(0, -1); - } - result.push(part); - } - } - return result.join('/'); - }, - dirname: function(p) { - var path = p.split('/'); - path.pop(); - return path.join('/'); - }, - basename: function(p, ext) { - var base = p.split('/').pop(); - if (ext) { - var index = base.lastIndexOf(ext); - if (base.length === index + ext.length) { - base = base.substr(0, index); - } - } - return base; - }, - extname: function(p) { - var index = p.lastIndexOf('.'); - return index > 0 ? p.substring(index) : ''; - } - }; - - less.modules.fs = { - readFileSync: function(name) { - // read a file into a byte array - var file = new java.io.File(name); - var stream = new java.io.FileInputStream(file); - var buffer = []; - var c; - while ((c = stream.read()) != -1) { - buffer.push(c); - } - stream.close(); - return { - length: buffer.length, - toString: function(enc) { - if (enc === 'base64') { - return encodeBase64Bytes(buffer); - } else if (enc) { - return java.lang.String["(byte[],java.lang.String)"](buffer, enc); - } else { - return java.lang.String["(byte[])"](buffer); - } - } - }; - } - }; - - less.encoder = { - encodeBase64: function(str) { - return encodeBase64String(str); - } - }; - - // --------------------------------------------------------------------------------------------- - // private helper functions - // --------------------------------------------------------------------------------------------- - - function encodeBase64Bytes(bytes) { - // requires at least a JRE Platform 6 (or JAXB 1.0 on the classpath) - return javax.xml.bind.DatatypeConverter.printBase64Binary(bytes) - } - function encodeBase64String(str) { - return encodeBase64Bytes(new java.lang.String(str).getBytes()); - } - -})(); - -var less, tree; - -// Node.js does not have a header file added which defines less -if (less === undefined) { - less = exports; - tree = require('./tree'); - less.mode = 'node'; -} -// -// less.js - parser -// -// A relatively straight-forward predictive parser. -// There is no tokenization/lexing stage, the input is parsed -// in one sweep. -// -// To make the parser fast enough to run in the browser, several -// optimization had to be made: -// -// - Matching and slicing on a huge input is often cause of slowdowns. -// The solution is to chunkify the input into smaller strings. -// The chunks are stored in the `chunks` var, -// `j` holds the current chunk index, and `currentPos` holds -// the index of the current chunk in relation to `input`. -// This gives us an almost 4x speed-up. -// -// - In many cases, we don't need to match individual tokens; -// for example, if a value doesn't hold any variables, operations -// or dynamic references, the parser can effectively 'skip' it, -// treating it as a literal. -// An example would be '1px solid #000' - which evaluates to itself, -// we don't need to know what the individual components are. -// The drawback, of course is that you don't get the benefits of -// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, -// and a smaller speed-up in the code-gen. -// -// -// Token matching is done with the `$` function, which either takes -// a terminal string or regexp, or a non-terminal function to call. -// It also takes care of moving all the indices forwards. -// -// -less.Parser = function Parser(env) { - var input, // LeSS input string - i, // current index in `input` - j, // current chunk - saveStack = [], // holds state for backtracking - furthest, // furthest index the parser has gone to - chunks, // chunkified input - current, // current chunk - currentPos, // index of current chunk, in `input` - parser, - parsers, - rootFilename = env && env.filename; - - // Top parser on an import tree must be sure there is one "env" - // which will then be passed around by reference. - if (!(env instanceof tree.parseEnv)) { - env = new tree.parseEnv(env); - } - - var imports = this.imports = { - paths: env.paths || [], // Search paths, when importing - queue: [], // Files which haven't been imported yet - files: env.files, // Holds the imported parse trees - contents: env.contents, // Holds the imported file contents - contentsIgnoredChars: env.contentsIgnoredChars, // lines inserted, not in the original less - mime: env.mime, // MIME type of .less files - error: null, // Error in parsing/evaluating an import - push: function (path, currentFileInfo, importOptions, callback) { - var parserImports = this; - this.queue.push(path); - - var fileParsedFunc = function (e, root, fullPath) { - parserImports.queue.splice(parserImports.queue.indexOf(path), 1); // Remove the path from the queue - - var importedPreviously = fullPath === rootFilename; - - parserImports.files[fullPath] = root; // Store the root - - if (e && !parserImports.error) { parserImports.error = e; } - - callback(e, root, importedPreviously, fullPath); - }; - - if (less.Parser.importer) { - less.Parser.importer(path, currentFileInfo, fileParsedFunc, env); - } else { - less.Parser.fileLoader(path, currentFileInfo, function(e, contents, fullPath, newFileInfo) { - if (e) {fileParsedFunc(e); return;} - - var newEnv = new tree.parseEnv(env); - - newEnv.currentFileInfo = newFileInfo; - newEnv.processImports = false; - newEnv.contents[fullPath] = contents; - - if (currentFileInfo.reference || importOptions.reference) { - newFileInfo.reference = true; - } - - if (importOptions.inline) { - fileParsedFunc(null, contents, fullPath); - } else { - new(less.Parser)(newEnv).parse(contents, function (e, root) { - fileParsedFunc(e, root, fullPath); - }); - } - }, env); - } - } - }; - - function save() { currentPos = i; saveStack.push( { current: current, i: i, j: j }); } - function restore() { var state = saveStack.pop(); current = state.current; currentPos = i = state.i; j = state.j; } - function forget() { saveStack.pop(); } - - function sync() { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - } - function isWhitespace(str, pos) { - var code = str.charCodeAt(pos | 0); - return (code <= 32) && (code === 32 || code === 10 || code === 9); - } - // - // Parse from a token, regexp or string, and move forward if match - // - function $(tok) { - var tokType = typeof tok, - match, length; - - // Either match a single character in the input, - // or match a regexp in the current chunk (`current`). - // - if (tokType === "string") { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - // regexp - sync (); - if (! (match = tok.exec(current))) { - return null; - } - - length = match[0].length; - - // The match is confirmed, add the match length to `i`, - // and consume any extra white-space characters (' ' || '\n') - // which come after that. The reason for this is that LeSS's - // grammar is mostly white-space insensitive. - // - skipWhitespace(length); - - if(typeof(match) === 'string') { - return match; - } else { - return match.length === 1 ? match[0] : match; - } - } - - // Specialization of $(tok) - function $re(tok) { - if (i > currentPos) { - current = current.slice(i - currentPos); - currentPos = i; - } - var m = tok.exec(current); - if (!m) { - return null; - } - - skipWhitespace(m[0].length); - if(typeof m === "string") { - return m; - } - - return m.length === 1 ? m[0] : m; - } - - var _$re = $re; - - // Specialization of $(tok) - function $char(tok) { - if (input.charAt(i) !== tok) { - return null; - } - skipWhitespace(1); - return tok; - } - - function skipWhitespace(length) { - var oldi = i, oldj = j, - curr = i - currentPos, - endIndex = i + current.length - curr, - mem = (i += length), - inp = input, - c; - - for (; i < endIndex; i++) { - c = inp.charCodeAt(i); - if (c > 32) { - break; - } - - if ((c !== 32) && (c !== 10) && (c !== 9) && (c !== 13)) { - break; - } - } - - current = current.slice(length + i - mem + curr); - currentPos = i; - - if (!current.length && (j < chunks.length - 1)) { - current = chunks[++j]; - skipWhitespace(0); // skip space at the beginning of a chunk - return true; // things changed - } - - return oldi !== i || oldj !== j; - } - - function expect(arg, msg, index) { - // some older browsers return typeof 'function' for RegExp - var result = (Object.prototype.toString.call(arg) === '[object Function]') ? arg.call(parsers) : $(arg); - if (result) { - return result; - } - error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" - : "unexpected token")); - } - - // Specialization of expect() - function expectChar(arg, msg) { - if (input.charAt(i) === arg) { - skipWhitespace(1); - return arg; - } - error(msg || "expected '" + arg + "' got '" + input.charAt(i) + "'"); - } - - function error(msg, type) { - var e = new Error(msg); - e.index = i; - e.type = type || 'Syntax'; - throw e; - } - - // Same as $(), but don't change the state of the parser, - // just return the match. - function peek(tok) { - if (typeof(tok) === 'string') { - return input.charAt(i) === tok; - } else { - return tok.test(current); - } - } - - // Specialization of peek() - function peekChar(tok) { - return input.charAt(i) === tok; - } - - - function getInput(e, env) { - if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) { - return parser.imports.contents[e.filename]; - } else { - return input; - } - } - - function getLocation(index, inputStream) { - var n = index + 1, - line = null, - column = -1; - - while (--n >= 0 && inputStream.charAt(n) !== '\n') { - column++; - } - - if (typeof index === 'number') { - line = (inputStream.slice(0, index).match(/\n/g) || "").length; - } - - return { - line: line, - column: column - }; - } - - function getDebugInfo(index, inputStream, env) { - var filename = env.currentFileInfo.filename; - if(less.mode !== 'browser' && less.mode !== 'rhino') { - filename = require('path').resolve(filename); - } - - return { - lineNumber: getLocation(index, inputStream).line + 1, - fileName: filename - }; - } - - function LessError(e, env) { - var input = getInput(e, env), - loc = getLocation(e.index, input), - line = loc.line, - col = loc.column, - callLine = e.call && getLocation(e.call, input).line, - lines = input.split('\n'); - - this.type = e.type || 'Syntax'; - this.message = e.message; - this.filename = e.filename || env.currentFileInfo.filename; - this.index = e.index; - this.line = typeof(line) === 'number' ? line + 1 : null; - this.callLine = callLine + 1; - this.callExtract = lines[callLine]; - this.stack = e.stack; - this.column = col; - this.extract = [ - lines[line - 1], - lines[line], - lines[line + 1] - ]; - } - - LessError.prototype = new Error(); - LessError.prototype.constructor = LessError; - - this.env = env = env || {}; - - // The optimization level dictates the thoroughness of the parser, - // the lower the number, the less nodes it will create in the tree. - // This could matter for debugging, or if you want to access - // the individual nodes in the tree. - this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; - - // - // The Parser - // - parser = { - - imports: imports, - // - // Parse an input string into an abstract syntax tree, - // @param str A string containing 'less' markup - // @param callback call `callback` when done. - // @param [additionalData] An optional map which can contains vars - a map (key, value) of variables to apply - // - parse: function (str, callback, additionalData) { - var root, line, lines, error = null, globalVars, modifyVars, preText = ""; - - i = j = currentPos = furthest = 0; - - globalVars = (additionalData && additionalData.globalVars) ? less.Parser.serializeVars(additionalData.globalVars) + '\n' : ''; - modifyVars = (additionalData && additionalData.modifyVars) ? '\n' + less.Parser.serializeVars(additionalData.modifyVars) : ''; - - if (globalVars || (additionalData && additionalData.banner)) { - preText = ((additionalData && additionalData.banner) ? additionalData.banner : "") + globalVars; - parser.imports.contentsIgnoredChars[env.currentFileInfo.filename] = preText.length; - } - - str = str.replace(/\r\n/g, '\n'); - // Remove potential UTF Byte Order Mark - input = str = preText + str.replace(/^\uFEFF/, '') + modifyVars; - parser.imports.contents[env.currentFileInfo.filename] = str; - - // Split the input into chunks. - chunks = (function (input) { - var len = input.length, level = 0, parenLevel = 0, - lastOpening, lastOpeningParen, lastMultiComment, lastMultiCommentEndBrace, - chunks = [], emitFrom = 0, - parserCurrentIndex, currentChunkStartIndex, cc, cc2, matched; - - function fail(msg, index) { - error = new(LessError)({ - index: index || parserCurrentIndex, - type: 'Parse', - message: msg, - filename: env.currentFileInfo.filename - }, env); - } - - function emitChunk(force) { - var len = parserCurrentIndex - emitFrom; - if (((len < 512) && !force) || !len) { - return; - } - chunks.push(input.slice(emitFrom, parserCurrentIndex + 1)); - emitFrom = parserCurrentIndex + 1; - } - - for (parserCurrentIndex = 0; parserCurrentIndex < len; parserCurrentIndex++) { - cc = input.charCodeAt(parserCurrentIndex); - if (((cc >= 97) && (cc <= 122)) || (cc < 34)) { - // a-z or whitespace - continue; - } - - switch (cc) { - case 40: // ( - parenLevel++; - lastOpeningParen = parserCurrentIndex; - continue; - case 41: // ) - if (--parenLevel < 0) { - return fail("missing opening `(`"); - } - continue; - case 59: // ; - if (!parenLevel) { emitChunk(); } - continue; - case 123: // { - level++; - lastOpening = parserCurrentIndex; - continue; - case 125: // } - if (--level < 0) { - return fail("missing opening `{`"); - } - if (!level && !parenLevel) { emitChunk(); } - continue; - case 92: // \ - if (parserCurrentIndex < len - 1) { parserCurrentIndex++; continue; } - return fail("unescaped `\\`"); - case 34: - case 39: - case 96: // ", ' and ` - matched = 0; - currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 1; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 > 96) { continue; } - if (cc2 == cc) { matched = 1; break; } - if (cc2 == 92) { // \ - if (parserCurrentIndex == len - 1) { - return fail("unescaped `\\`"); - } - parserCurrentIndex++; - } - } - if (matched) { continue; } - return fail("unmatched `" + String.fromCharCode(cc) + "`", currentChunkStartIndex); - case 47: // /, check for comment - if (parenLevel || (parserCurrentIndex == len - 1)) { continue; } - cc2 = input.charCodeAt(parserCurrentIndex + 1); - if (cc2 == 47) { - // //, find lnfeed - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if ((cc2 <= 13) && ((cc2 == 10) || (cc2 == 13))) { break; } - } - } else if (cc2 == 42) { - // /*, find */ - lastMultiComment = currentChunkStartIndex = parserCurrentIndex; - for (parserCurrentIndex = parserCurrentIndex + 2; parserCurrentIndex < len - 1; parserCurrentIndex++) { - cc2 = input.charCodeAt(parserCurrentIndex); - if (cc2 == 125) { lastMultiCommentEndBrace = parserCurrentIndex; } - if (cc2 != 42) { continue; } - if (input.charCodeAt(parserCurrentIndex + 1) == 47) { break; } - } - if (parserCurrentIndex == len - 1) { - return fail("missing closing `*/`", currentChunkStartIndex); - } - parserCurrentIndex++; - } - continue; - case 42: // *, check for unmatched */ - if ((parserCurrentIndex < len - 1) && (input.charCodeAt(parserCurrentIndex + 1) == 47)) { - return fail("unmatched `/*`"); - } - continue; - } - } - - if (level !== 0) { - if ((lastMultiComment > lastOpening) && (lastMultiCommentEndBrace > lastMultiComment)) { - return fail("missing closing `}` or `*/`", lastOpening); - } else { - return fail("missing closing `}`", lastOpening); - } - } else if (parenLevel !== 0) { - return fail("missing closing `)`", lastOpeningParen); - } - - emitChunk(true); - return chunks; - })(str); - - if (error) { - return callback(new(LessError)(error, env)); - } - - current = chunks[0]; - - // Start with the primary rule. - // The whole syntax tree is held under a Ruleset node, - // with the `root` property set to true, so no `{}` are - // output. The callback is called when the input is parsed. - try { - root = new(tree.Ruleset)(null, this.parsers.primary()); - root.root = true; - root.firstRoot = true; - } catch (e) { - return callback(new(LessError)(e, env)); - } - - root.toCSS = (function (evaluate) { - return function (options, variables) { - options = options || {}; - var evaldRoot, - css, - evalEnv = new tree.evalEnv(options); - - // - // Allows setting variables with a hash, so: - // - // `{ color: new(tree.Color)('#f01') }` will become: - // - // new(tree.Rule)('@color', - // new(tree.Value)([ - // new(tree.Expression)([ - // new(tree.Color)('#f01') - // ]) - // ]) - // ) - // - if (typeof(variables) === 'object' && !Array.isArray(variables)) { - variables = Object.keys(variables).map(function (k) { - var value = variables[k]; - - if (! (value instanceof tree.Value)) { - if (! (value instanceof tree.Expression)) { - value = new(tree.Expression)([value]); - } - value = new(tree.Value)([value]); - } - return new(tree.Rule)('@' + k, value, false, null, 0); - }); - evalEnv.frames = [new(tree.Ruleset)(null, variables)]; - } - - try { - var preEvalVisitors = [], - visitors = [ - new(tree.joinSelectorVisitor)(), - new(tree.processExtendsVisitor)(), - new(tree.toCSSVisitor)({compress: Boolean(options.compress)}) - ], i, root = this; - - if (options.plugins) { - for(i =0; i < options.plugins.length; i++) { - if (options.plugins[i].isPreEvalVisitor) { - preEvalVisitors.push(options.plugins[i]); - } else { - if (options.plugins[i].isPreVisitor) { - visitors.splice(0, 0, options.plugins[i]); - } else { - visitors.push(options.plugins[i]); - } - } - } - } - - for(i = 0; i < preEvalVisitors.length; i++) { - preEvalVisitors[i].run(root); - } - - evaldRoot = evaluate.call(root, evalEnv); - - for(i = 0; i < visitors.length; i++) { - visitors[i].run(evaldRoot); - } - - if (options.sourceMap) { - evaldRoot = new tree.sourceMapOutput( - { - contentsIgnoredCharsMap: parser.imports.contentsIgnoredChars, - writeSourceMap: options.writeSourceMap, - rootNode: evaldRoot, - contentsMap: parser.imports.contents, - sourceMapFilename: options.sourceMapFilename, - sourceMapURL: options.sourceMapURL, - outputFilename: options.sourceMapOutputFilename, - sourceMapBasepath: options.sourceMapBasepath, - sourceMapRootpath: options.sourceMapRootpath, - outputSourceFiles: options.outputSourceFiles, - sourceMapGenerator: options.sourceMapGenerator - }); - } - - css = evaldRoot.toCSS({ - compress: Boolean(options.compress), - dumpLineNumbers: env.dumpLineNumbers, - strictUnits: Boolean(options.strictUnits), - numPrecision: 8}); - } catch (e) { - throw new(LessError)(e, env); - } - - if (options.cleancss && less.mode === 'node') { - var CleanCSS = require('clean-css'), - cleancssOptions = options.cleancssOptions || {}; - - if (cleancssOptions.keepSpecialComments === undefined) { - cleancssOptions.keepSpecialComments = "*"; - } - cleancssOptions.processImport = false; - cleancssOptions.noRebase = true; - if (cleancssOptions.noAdvanced === undefined) { - cleancssOptions.noAdvanced = true; - } - - return new CleanCSS(cleancssOptions).minify(css); - } else if (options.compress) { - return css.replace(/(^(\s)+)|((\s)+$)/g, ""); - } else { - return css; - } - }; - })(root.eval); - - // If `i` is smaller than the `input.length - 1`, - // it means the parser wasn't able to parse the whole - // string, so we've got a parsing error. - // - // We try to extract a \n delimited string, - // showing the line where the parse error occured. - // We split it up into two parts (the part which parsed, - // and the part which didn't), so we can color them differently. - if (i < input.length - 1) { - i = furthest; - var loc = getLocation(i, input); - lines = input.split('\n'); - line = loc.line + 1; - - error = { - type: "Parse", - message: "Unrecognised input", - index: i, - filename: env.currentFileInfo.filename, - line: line, - column: loc.column, - extract: [ - lines[line - 2], - lines[line - 1], - lines[line] - ] - }; - } - - var finish = function (e) { - e = error || e || parser.imports.error; - - if (e) { - if (!(e instanceof LessError)) { - e = new(LessError)(e, env); - } - - return callback(e); - } - else { - return callback(null, root); - } - }; - - if (env.processImports !== false) { - new tree.importVisitor(this.imports, finish) - .run(root); - } else { - return finish(); - } - }, - - // - // Here in, the parsing rules/functions - // - // The basic structure of the syntax tree generated is as follows: - // - // Ruleset -> Rule -> Value -> Expression -> Entity - // - // Here's some Less code: - // - // .class { - // color: #fff; - // border: 1px solid #000; - // width: @w + 4px; - // > .child {...} - // } - // - // And here's what the parse tree might look like: - // - // Ruleset (Selector '.class', [ - // Rule ("color", Value ([Expression [Color #fff]])) - // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) - // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) - // Ruleset (Selector [Element '>', '.child'], [...]) - // ]) - // - // In general, most rules will try to parse a token with the `$()` function, and if the return - // value is truly, will return a new node, of the relevant type. Sometimes, we need to check - // first, before parsing, that's when we use `peek()`. - // - parsers: parsers = { - // - // The `primary` rule is the *entry* and *exit* point of the parser. - // The rules here can appear at any level of the parse tree. - // - // The recursive nature of the grammar is an interplay between the `block` - // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, - // as represented by this simplified grammar: - // - // primary → (ruleset | rule)+ - // ruleset → selector+ block - // block → '{' primary '}' - // - // Only at one point is the primary rule not called from the - // block rule: at the root level. - // - primary: function () { - var mixin = this.mixin, $re = _$re, root = [], node; - - while (current) - { - node = this.extendRule() || mixin.definition() || this.rule() || this.ruleset() || - mixin.call() || this.comment() || this.rulesetCall() || this.directive(); - if (node) { - root.push(node); - } else { - if (!($re(/^[\s\n]+/) || $re(/^;+/))) { - break; - } - } - if (peekChar('}')) { - break; - } - } - - return root; - }, - - // We create a Comment node for CSS comments `/* */`, - // but keep the LeSS comments `//` silent, by just skipping - // over them. - comment: function () { - var comment; - - if (input.charAt(i) !== '/') { return; } - - if (input.charAt(i + 1) === '/') { - return new(tree.Comment)($re(/^\/\/.*/), true, i, env.currentFileInfo); - } - comment = $re(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/); - if (comment) { - return new(tree.Comment)(comment, false, i, env.currentFileInfo); - } - }, - - comments: function () { - var comment, comments = []; - - while(true) { - comment = this.comment(); - if (!comment) { - break; - } - comments.push(comment); - } - - return comments; - }, - - // - // Entities are tokens which can be found inside an Expression - // - entities: { - // - // A string, which supports escaping " and ' - // - // "milky way" 'he\'s the one!' - // - quoted: function () { - var str, j = i, e, index = i; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '"' && input.charAt(j) !== "'") { return; } - - if (e) { $char('~'); } - - str = $re(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/); - if (str) { - return new(tree.Quoted)(str[0], str[1] || str[2], e, index, env.currentFileInfo); - } - }, - - // - // A catch-all word, such as: - // - // black border-collapse - // - keyword: function () { - var k; - - k = $re(/^%|^[_A-Za-z-][_A-Za-z0-9-]*/); - if (k) { - var color = tree.Color.fromKeyword(k); - if (color) { - return color; - } - return new(tree.Keyword)(k); - } - }, - - // - // A function call - // - // rgb(255, 0, 255) - // - // We also try to catch IE's `alpha()`, but let the `alpha` parser - // deal with the details. - // - // The arguments are parsed with the `entities.arguments` parser. - // - call: function () { - var name, nameLC, args, alpha_ret, index = i; - - name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(current); - if (!name) { return; } - - name = name[1]; - nameLC = name.toLowerCase(); - if (nameLC === 'url') { - return null; - } - - i += name.length; - - if (nameLC === 'alpha') { - alpha_ret = parsers.alpha(); - if(typeof alpha_ret !== 'undefined') { - return alpha_ret; - } - } - - $char('('); // Parse the '(' and consume whitespace. - - args = this.arguments(); - - if (! $char(')')) { - return; - } - - if (name) { return new(tree.Call)(name, args, index, env.currentFileInfo); } - }, - arguments: function () { - var args = [], arg; - - while (true) { - arg = this.assignment() || parsers.expression(); - if (!arg) { - break; - } - args.push(arg); - if (! $char(',')) { - break; - } - } - return args; - }, - literal: function () { - return this.dimension() || - this.color() || - this.quoted() || - this.unicodeDescriptor(); - }, - - // Assignments are argument entities for calls. - // They are present in ie filter properties as shown below. - // - // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) - // - - assignment: function () { - var key, value; - key = $re(/^\w+(?=\s?=)/i); - if (!key) { - return; - } - if (!$char('=')) { - return; - } - value = parsers.entity(); - if (value) { - return new(tree.Assignment)(key, value); - } - }, - - // - // Parse url() tokens - // - // We use a specific rule for urls, because they don't really behave like - // standard function calls. The difference is that the argument doesn't have - // to be enclosed within a string, so it can't be parsed as an Expression. - // - url: function () { - var value; - - if (input.charAt(i) !== 'u' || !$re(/^url\(/)) { - return; - } - - value = this.quoted() || this.variable() || - $re(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ""; - - expectChar(')'); - - return new(tree.URL)((value.value != null || value instanceof tree.Variable) - ? value : new(tree.Anonymous)(value), env.currentFileInfo); - }, - - // - // A Variable entity, such as `@fink`, in - // - // width: @fink + 2px - // - // We use a different parser for variable definitions, - // see `parsers.variable`. - // - variable: function () { - var name, index = i; - - if (input.charAt(i) === '@' && (name = $re(/^@@?[\w-]+/))) { - return new(tree.Variable)(name, index, env.currentFileInfo); - } - }, - - // A variable entity useing the protective {} e.g. @{var} - variableCurly: function () { - var curly, index = i; - - if (input.charAt(i) === '@' && (curly = $re(/^@\{([\w-]+)\}/))) { - return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo); - } - }, - - // - // A Hexadecimal color - // - // #4F3C2F - // - // `rgb` and `hsl` colors are parsed through the `entities.call` parser. - // - color: function () { - var rgb; - - if (input.charAt(i) === '#' && (rgb = $re(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) { - var colorCandidateString = rgb.input.match(/^#([\w]+).*/); // strip colons, brackets, whitespaces and other characters that should not definitely be part of color string - colorCandidateString = colorCandidateString[1]; - if (!colorCandidateString.match(/^[A-Fa-f0-9]+$/)) { // verify if candidate consists only of allowed HEX characters - error("Invalid HEX color code"); - } - return new(tree.Color)(rgb[1]); - } - }, - - // - // A Dimension, that is, a number and a unit - // - // 0.5em 95% - // - dimension: function () { - var value, c = input.charCodeAt(i); - //Is the first char of the dimension 0-9, '.', '+' or '-' - if ((c > 57 || c < 43) || c === 47 || c == 44) { - return; - } - - value = $re(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/); - if (value) { - return new(tree.Dimension)(value[1], value[2]); - } - }, - - // - // A unicode descriptor, as is used in unicode-range - // - // U+0?? or U+00A1-00A9 - // - unicodeDescriptor: function () { - var ud; - - ud = $re(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/); - if (ud) { - return new(tree.UnicodeDescriptor)(ud[0]); - } - }, - - // - // JavaScript code to be evaluated - // - // `window.location.href` - // - javascript: function () { - var str, j = i, e; - - if (input.charAt(j) === '~') { j++; e = true; } // Escaped strings - if (input.charAt(j) !== '`') { return; } - if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) { - error("You are using JavaScript, which has been disabled."); - } - - if (e) { $char('~'); } - - str = $re(/^`([^`]*)`/); - if (str) { - return new(tree.JavaScript)(str[1], i, e); - } - } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink: - // - variable: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*:/))) { return name[1]; } - }, - - // - // The variable part of a variable definition. Used in the `rule` parser - // - // @fink(); - // - rulesetCall: function () { - var name; - - if (input.charAt(i) === '@' && (name = $re(/^(@[\w-]+)\s*\(\s*\)\s*;/))) { - return new tree.RulesetCall(name[1]); - } - }, - - // - // extend syntax - used to extend selectors - // - extend: function(isRule) { - var elements, e, index = i, option, extendList, extend; - - if (!(isRule ? $re(/^&:extend\(/) : $re(/^:extend\(/))) { return; } - - do { - option = null; - elements = null; - while (! (option = $re(/^(all)(?=\s*(\)|,))/))) { - e = this.element(); - if (!e) { break; } - if (elements) { elements.push(e); } else { elements = [ e ]; } - } - - option = option && option[1]; - if (!elements) - error("Missing target selector for :extend()."); - extend = new(tree.Extend)(new(tree.Selector)(elements), option, index); - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - - } while($char(",")); - - expect(/^\)/); - - if (isRule) { - expect(/^;/); - } - - return extendList; - }, - - // - // extendRule - used in a rule to extend all the parent selectors - // - extendRule: function() { - return this.extend(true); - }, - - // - // Mixins - // - mixin: { - // - // A Mixin call, with an optional argument list - // - // #mixins > .square(#fff); - // .rounded(4px, black); - // .button; - // - // The `while` loop is there because mixins can be - // namespaced, but we only support the child and descendant - // selector for now. - // - call: function () { - var s = input.charAt(i), important = false, index = i, elemIndex, - elements, elem, e, c, args; - - if (s !== '.' && s !== '#') { return; } - - save(); // stop us absorbing part of an invalid selector - - while (true) { - elemIndex = i; - e = $re(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/); - if (!e) { - break; - } - elem = new(tree.Element)(c, e, elemIndex, env.currentFileInfo); - if (elements) { elements.push(elem); } else { elements = [ elem ]; } - c = $char('>'); - } - - if (elements) { - if ($char('(')) { - args = this.args(true).args; - expectChar(')'); - } - - if (parsers.important()) { - important = true; - } - - if (parsers.end()) { - forget(); - return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important); - } - } - - restore(); - }, - args: function (isCall) { - var parsers = parser.parsers, entities = parsers.entities, - returner = { args:null, variadic: false }, - expressions = [], argsSemiColon = [], argsComma = [], - isSemiColonSeperated, expressionContainsNamed, name, nameLoop, value, arg; - - save(); - - while (true) { - if (isCall) { - arg = parsers.detachedRuleset() || parsers.expression(); - } else { - parsers.comments(); - if (input.charAt(i) === '.' && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ variadic: true }); - break; - } - arg = entities.variable() || entities.literal() || entities.keyword(); - } - - if (!arg) { - break; - } - - nameLoop = null; - if (arg.throwAwayComments) { - arg.throwAwayComments(); - } - value = arg; - var val = null; - - if (isCall) { - // Variable - if (arg.value && arg.value.length == 1) { - val = arg.value[0]; - } - } else { - val = arg; - } - - if (val && val instanceof tree.Variable) { - if ($char(':')) { - if (expressions.length > 0) { - if (isSemiColonSeperated) { - error("Cannot mix ; and , as delimiter types"); - } - expressionContainsNamed = true; - } - - // we do not support setting a ruleset as a default variable - it doesn't make sense - // However if we do want to add it, there is nothing blocking it, just don't error - // and remove isCall dependency below - value = (isCall && parsers.detachedRuleset()) || parsers.expression(); - - if (!value) { - if (isCall) { - error("could not understand value for named argument"); - } else { - restore(); - returner.args = []; - return returner; - } - } - nameLoop = (name = val.name); - } else if (!isCall && $re(/^\.{3}/)) { - returner.variadic = true; - if ($char(";") && !isSemiColonSeperated) { - isSemiColonSeperated = true; - } - (isSemiColonSeperated ? argsSemiColon : argsComma) - .push({ name: arg.name, variadic: true }); - break; - } else if (!isCall) { - name = nameLoop = val.name; - value = null; - } - } - - if (value) { - expressions.push(value); - } - - argsComma.push({ name:nameLoop, value:value }); - - if ($char(',')) { - continue; - } - - if ($char(';') || isSemiColonSeperated) { - - if (expressionContainsNamed) { - error("Cannot mix ; and , as delimiter types"); - } - - isSemiColonSeperated = true; - - if (expressions.length > 1) { - value = new(tree.Value)(expressions); - } - argsSemiColon.push({ name:name, value:value }); - - name = null; - expressions = []; - expressionContainsNamed = false; - } - } - - forget(); - returner.args = isSemiColonSeperated ? argsSemiColon : argsComma; - return returner; - }, - // - // A Mixin definition, with a list of parameters - // - // .rounded (@radius: 2px, @color) { - // ... - // } - // - // Until we have a finer grained state-machine, we have to - // do a look-ahead, to make sure we don't have a mixin call. - // See the `rule` function for more information. - // - // We start by matching `.rounded (`, and then proceed on to - // the argument list, which has optional default values. - // We store the parameters in `params`, with a `value` key, - // if there is a value, such as in the case of `@radius`. - // - // Once we've got our params list, and a closing `)`, we parse - // the `{...}` block. - // - definition: function () { - var name, params = [], match, ruleset, cond, variadic = false; - if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || - peek(/^[^{]*\}/)) { - return; - } - - save(); - - match = $re(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/); - if (match) { - name = match[1]; - - var argInfo = this.args(false); - params = argInfo.args; - variadic = argInfo.variadic; - - // .mixincall("@{a}"); - // looks a bit like a mixin definition.. - // also - // .mixincall(@a: {rule: set;}); - // so we have to be nice and restore - if (!$char(')')) { - furthest = i; - restore(); - return; - } - - parsers.comments(); - - if ($re(/^when/)) { // Guard - cond = expect(parsers.conditions, 'expected condition'); - } - - ruleset = parsers.block(); - - if (ruleset) { - forget(); - return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); - } else { - restore(); - } - } else { - forget(); - } - } - }, - - // - // Entities are the smallest recognized token, - // and can be found inside a rule's value. - // - entity: function () { - var entities = this.entities; - - return entities.literal() || entities.variable() || entities.url() || - entities.call() || entities.keyword() || entities.javascript() || - this.comment(); - }, - - // - // A Rule terminator. Note that we use `peek()` to check for '}', - // because the `block` rule will be expecting it, but we still need to make sure - // it's there, if ';' was ommitted. - // - end: function () { - return $char(';') || peekChar('}'); - }, - - // - // IE's alpha function - // - // alpha(opacity=88) - // - alpha: function () { - var value; - - if (! $re(/^\(opacity=/i)) { return; } - value = $re(/^\d+/) || this.entities.variable(); - if (value) { - expectChar(')'); - return new(tree.Alpha)(value); - } - }, - - // - // A Selector Element - // - // div - // + h1 - // #socks - // input[type="text"] - // - // Elements are the building blocks for Selectors, - // they are made out of a `Combinator` (see combinator rule), - // and an element name, such as a tag a class, or `*`. - // - element: function () { - var e, c, v, index = i; - - c = this.combinator(); - - e = $re(/^(?:\d+\.\d+|\d+)%/) || $re(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) || - $char('*') || $char('&') || this.attribute() || $re(/^\([^()@]+\)/) || $re(/^[\.#](?=@)/) || - this.entities.variableCurly(); - - if (! e) { - save(); - if ($char('(')) { - if ((v = this.selector()) && $char(')')) { - e = new(tree.Paren)(v); - forget(); - } else { - restore(); - } - } else { - forget(); - } - } - - if (e) { return new(tree.Element)(c, e, index, env.currentFileInfo); } - }, - - // - // Combinators combine elements together, in a Selector. - // - // Because our parser isn't white-space sensitive, special care - // has to be taken, when parsing the descendant combinator, ` `, - // as it's an empty space. We have to check the previous character - // in the input, to see if it's a ` ` character. More info on how - // we deal with this in *combinator.js*. - // - combinator: function () { - var c = input.charAt(i); - - if (c === '>' || c === '+' || c === '~' || c === '|' || c === '^') { - i++; - if (input.charAt(i) === '^') { - c = '^^'; - i++; - } - while (isWhitespace(input, i)) { i++; } - return new(tree.Combinator)(c); - } else if (isWhitespace(input, i - 1)) { - return new(tree.Combinator)(" "); - } else { - return new(tree.Combinator)(null); - } - }, - // - // A CSS selector (see selector below) - // with less extensions e.g. the ability to extend and guard - // - lessSelector: function () { - return this.selector(true); - }, - // - // A CSS Selector - // - // .class > div + h1 - // li a:hover - // - // Selectors are made out of one or more Elements, see above. - // - selector: function (isLess) { - var index = i, $re = _$re, elements, extendList, c, e, extend, when, condition; - - while ((isLess && (extend = this.extend())) || (isLess && (when = $re(/^when/))) || (e = this.element())) { - if (when) { - condition = expect(this.conditions, 'expected condition'); - } else if (condition) { - error("CSS guard can only be used at the end of selector"); - } else if (extend) { - if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; } - } else { - if (extendList) { error("Extend can only be used at the end of selector"); } - c = input.charAt(i); - if (elements) { elements.push(e); } else { elements = [ e ]; } - e = null; - } - if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { - break; - } - } - - if (elements) { return new(tree.Selector)(elements, extendList, condition, index, env.currentFileInfo); } - if (extendList) { error("Extend must be used to extend a selector, it cannot be used on its own"); } - }, - attribute: function () { - if (! $char('[')) { return; } - - var entities = this.entities, - key, val, op; - - if (!(key = entities.variableCurly())) { - key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); - } - - op = $re(/^[|~*$^]?=/); - if (op) { - val = entities.quoted() || $re(/^[0-9]+%/) || $re(/^[\w-]+/) || entities.variableCurly(); - } - - expectChar(']'); - - return new(tree.Attribute)(key, op, val); - }, - - // - // The `block` rule is used by `ruleset` and `mixin.definition`. - // It's a wrapper around the `primary` rule, with added `{}`. - // - block: function () { - var content; - if ($char('{') && (content = this.primary()) && $char('}')) { - return content; - } - }, - - blockRuleset: function() { - var block = this.block(); - - if (block) { - block = new tree.Ruleset(null, block); - } - return block; - }, - - detachedRuleset: function() { - var blockRuleset = this.blockRuleset(); - if (blockRuleset) { - return new tree.DetachedRuleset(blockRuleset); - } - }, - - // - // div, .class, body > p {...} - // - ruleset: function () { - var selectors, s, rules, debugInfo; - - save(); - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - while (true) { - s = this.lessSelector(); - if (!s) { - break; - } - if (selectors) { selectors.push(s); } else { selectors = [ s ]; } - this.comments(); - if (s.condition && selectors.length > 1) { - error("Guards are only currently allowed on a single selector."); - } - if (! $char(',')) { break; } - if (s.condition) { - error("Guards are only currently allowed on a single selector."); - } - this.comments(); - } - - if (selectors && (rules = this.block())) { - forget(); - var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports); - if (env.dumpLineNumbers) { - ruleset.debugInfo = debugInfo; - } - return ruleset; - } else { - // Backtrack - furthest = i; - restore(); - } - }, - rule: function (tryAnonymous) { - var name, value, startOfRule = i, c = input.charAt(startOfRule), important, merge, isVariable; - - if (c === '.' || c === '#' || c === '&') { return; } - - save(); - - name = this.variable() || this.ruleProperty(); - if (name) { - isVariable = typeof name === "string"; - - if (isVariable) { - value = this.detachedRuleset(); - } - - if (!value) { - // prefer to try to parse first if its a variable or we are compressing - // but always fallback on the other one - value = !tryAnonymous && (env.compress || isVariable) ? - (this.value() || this.anonymousValue()) : - (this.anonymousValue() || this.value()); - - important = this.important(); - - // a name returned by this.ruleProperty() is always an array of the form: - // [string-1, ..., string-n, ""] or [string-1, ..., string-n, "+"] - // where each item is a tree.Keyword or tree.Variable - merge = !isVariable && name.pop().value; - } - - if (value && this.end()) { - forget(); - return new (tree.Rule)(name, value, important, merge, startOfRule, env.currentFileInfo); - } else { - furthest = i; - restore(); - if (value && !tryAnonymous) { - return this.rule(true); - } - } - } else { - forget(); - } - }, - anonymousValue: function () { - var match; - match = /^([^@+\/'"*`(;{}-]*);/.exec(current); - if (match) { - i += match[0].length - 1; - return new(tree.Anonymous)(match[1]); - } - }, - - // - // An @import directive - // - // @import "lib"; - // - // Depending on our environment, importing is done differently: - // In the browser, it's an XHR request, in Node, it would be a - // file-system operation. The function used for importing is - // stored in `import`, which we pass to the Import constructor. - // - "import": function () { - var path, features, index = i; - - var dir = $re(/^@import?\s+/); - - if (dir) { - var options = (dir ? this.importOptions() : null) || {}; - - if ((path = this.entities.quoted() || this.entities.url())) { - features = this.mediaFeatures(); - - if (!$(';')) { - i = index; - error("missing semi-colon or unrecognised media features on import"); - } - features = features && new(tree.Value)(features); - return new(tree.Import)(path, features, options, index, env.currentFileInfo); - } - else - { - i = index; - error("malformed import statement"); - } - } - }, - - importOptions: function() { - var o, options = {}, optionName, value; - - // list of options, surrounded by parens - if (! $char('(')) { return null; } - do { - o = this.importOption(); - if (o) { - optionName = o; - value = true; - switch(optionName) { - case "css": - optionName = "less"; - value = false; - break; - case "once": - optionName = "multiple"; - value = false; - break; - } - options[optionName] = value; - if (! $char(',')) { break; } - } - } while (o); - expectChar(')'); - return options; - }, - - importOption: function() { - var opt = $re(/^(less|css|multiple|once|inline|reference)/); - if (opt) { - return opt[1]; - } - }, - - mediaFeature: function () { - var entities = this.entities, nodes = [], e, p; - do { - e = entities.keyword() || entities.variable(); - if (e) { - nodes.push(e); - } else if ($char('(')) { - p = this.property(); - e = this.value(); - if ($char(')')) { - if (p && e) { - nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, i, env.currentFileInfo, true))); - } else if (e) { - nodes.push(new(tree.Paren)(e)); - } else { - return null; - } - } else { return null; } - } - } while (e); - - if (nodes.length > 0) { - return new(tree.Expression)(nodes); - } - }, - - mediaFeatures: function () { - var entities = this.entities, features = [], e; - do { - e = this.mediaFeature(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } else { - e = entities.variable(); - if (e) { - features.push(e); - if (! $char(',')) { break; } - } - } - } while (e); - - return features.length > 0 ? features : null; - }, - - media: function () { - var features, rules, media, debugInfo; - - if (env.dumpLineNumbers) { - debugInfo = getDebugInfo(i, input, env); - } - - if ($re(/^@media/)) { - features = this.mediaFeatures(); - - rules = this.block(); - if (rules) { - media = new(tree.Media)(rules, features, i, env.currentFileInfo); - if (env.dumpLineNumbers) { - media.debugInfo = debugInfo; - } - return media; - } - } - }, - - // - // A CSS Directive - // - // @charset "utf-8"; - // - directive: function () { - var index = i, name, value, rules, nonVendorSpecificName, - hasIdentifier, hasExpression, hasUnknown, hasBlock = true; - - if (input.charAt(i) !== '@') { return; } - - value = this['import']() || this.media(); - if (value) { - return value; - } - - save(); - - name = $re(/^@[a-z-]+/); - - if (!name) { return; } - - nonVendorSpecificName = name; - if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { - nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); - } - - switch(nonVendorSpecificName) { - /* - case "@font-face": - case "@viewport": - case "@top-left": - case "@top-left-corner": - case "@top-center": - case "@top-right": - case "@top-right-corner": - case "@bottom-left": - case "@bottom-left-corner": - case "@bottom-center": - case "@bottom-right": - case "@bottom-right-corner": - case "@left-top": - case "@left-middle": - case "@left-bottom": - case "@right-top": - case "@right-middle": - case "@right-bottom": - hasBlock = true; - break; - */ - case "@charset": - hasIdentifier = true; - hasBlock = false; - break; - case "@namespace": - hasExpression = true; - hasBlock = false; - break; - case "@keyframes": - hasIdentifier = true; - break; - case "@host": - case "@page": - case "@document": - case "@supports": - hasUnknown = true; - break; - } - - if (hasIdentifier) { - value = this.entity(); - if (!value) { - error("expected " + name + " identifier"); - } - } else if (hasExpression) { - value = this.expression(); - if (!value) { - error("expected " + name + " expression"); - } - } else if (hasUnknown) { - value = ($re(/^[^{;]+/) || '').trim(); - if (value) { - value = new(tree.Anonymous)(value); - } - } - - if (hasBlock) { - rules = this.blockRuleset(); - } - - if (rules || (!hasBlock && value && $char(';'))) { - forget(); - return new(tree.Directive)(name, value, rules, index, env.currentFileInfo, - env.dumpLineNumbers ? getDebugInfo(index, input, env) : null); - } - - restore(); - }, - - // - // A Value is a comma-delimited list of Expressions - // - // font-family: Baskerville, Georgia, serif; - // - // In a Rule, a Value represents everything after the `:`, - // and before the `;`. - // - value: function () { - var e, expressions = []; - - do { - e = this.expression(); - if (e) { - expressions.push(e); - if (! $char(',')) { break; } - } - } while(e); - - if (expressions.length > 0) { - return new(tree.Value)(expressions); - } - }, - important: function () { - if (input.charAt(i) === '!') { - return $re(/^! *important/); - } - }, - sub: function () { - var a, e; - - if ($char('(')) { - a = this.addition(); - if (a) { - e = new(tree.Expression)([a]); - expectChar(')'); - e.parens = true; - return e; - } - } - }, - multiplication: function () { - var m, a, op, operation, isSpaced; - m = this.operand(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - if (peek(/^\/[*\/]/)) { - break; - } - - save(); - - op = $char('/') || $char('*'); - - if (!op) { forget(); break; } - - a = this.operand(); - - if (!a) { restore(); break; } - forget(); - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - addition: function () { - var m, a, op, operation, isSpaced; - m = this.multiplication(); - if (m) { - isSpaced = isWhitespace(input, i - 1); - while (true) { - op = $re(/^[-+]\s+/) || (!isSpaced && ($char('+') || $char('-'))); - if (!op) { - break; - } - a = this.multiplication(); - if (!a) { - break; - } - - m.parensInOp = true; - a.parensInOp = true; - operation = new(tree.Operation)(op, [operation || m, a], isSpaced); - isSpaced = isWhitespace(input, i - 1); - } - return operation || m; - } - }, - conditions: function () { - var a, b, index = i, condition; - - a = this.condition(); - if (a) { - while (true) { - if (!peek(/^,\s*(not\s*)?\(/) || !$char(',')) { - break; - } - b = this.condition(); - if (!b) { - break; - } - condition = new(tree.Condition)('or', condition || a, b, index); - } - return condition || a; - } - }, - condition: function () { - var entities = this.entities, index = i, negate = false, - a, b, c, op; - - if ($re(/^not/)) { negate = true; } - expectChar('('); - a = this.addition() || entities.keyword() || entities.quoted(); - if (a) { - op = $re(/^(?:>=|<=|=<|[<=>])/); - if (op) { - b = this.addition() || entities.keyword() || entities.quoted(); - if (b) { - c = new(tree.Condition)(op, a, b, index, negate); - } else { - error('expected expression'); - } - } else { - c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); - } - expectChar(')'); - return $re(/^and/) ? new(tree.Condition)('and', c, this.condition()) : c; - } - }, - - // - // An operand is anything that can be part of an operation, - // such as a Color, or a Variable - // - operand: function () { - var entities = this.entities, - p = input.charAt(i + 1), negate; - - if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $char('-'); } - var o = this.sub() || entities.dimension() || - entities.color() || entities.variable() || - entities.call(); - - if (negate) { - o.parensInOp = true; - o = new(tree.Negative)(o); - } - - return o; - }, - - // - // Expressions either represent mathematical operations, - // or white-space delimited Entities. - // - // 1px solid black - // @var * 2 - // - expression: function () { - var entities = [], e, delim; - - do { - e = this.addition() || this.entity(); - if (e) { - entities.push(e); - // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here - if (!peek(/^\/[\/*]/)) { - delim = $char('/'); - if (delim) { - entities.push(new(tree.Anonymous)(delim)); - } - } - } - } while (e); - if (entities.length > 0) { - return new(tree.Expression)(entities); - } - }, - property: function () { - var name = $re(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/); - if (name) { - return name[1]; - } - }, - ruleProperty: function () { - var c = current, name = [], index = [], length = 0, s, k; - - function match(re) { - var a = re.exec(c); - if (a) { - index.push(i + length); - length += a[0].length; - c = c.slice(a[1].length); - return name.push(a[1]); - } - } - - match(/^(\*?)/); - while (match(/^((?:[\w-]+)|(?:@\{[\w-]+\}))/)); // ! - if ((name.length > 1) && match(/^\s*((?:\+_|\+)?)\s*:/)) { - // at last, we have the complete match now. move forward, - // convert name particles to tree objects and return: - skipWhitespace(length); - if (name[0] === '') { - name.shift(); - index.shift(); - } - for (k = 0; k < name.length; k++) { - s = name[k]; - name[k] = (s.charAt(0) !== '@') - ? new(tree.Keyword)(s) - : new(tree.Variable)('@' + s.slice(2, -1), - index[k], env.currentFileInfo); - } - return name; - } - } - } - }; - return parser; -}; -less.Parser.serializeVars = function(vars) { - var s = ''; - - for (var name in vars) { - if (Object.hasOwnProperty.call(vars, name)) { - var value = vars[name]; - s += ((name[0] === '@') ? '' : '@') + name +': '+ value + - ((('' + value).slice(-1) === ';') ? '' : ';'); - } - } - - return s; -}; - -(function (tree) { - -tree.functions = { - rgb: function (r, g, b) { - return this.rgba(r, g, b, 1.0); - }, - rgba: function (r, g, b, a) { - var rgb = [r, g, b].map(function (c) { return scaled(c, 255); }); - a = number(a); - return new(tree.Color)(rgb, a); - }, - hsl: function (h, s, l) { - return this.hsla(h, s, l, 1.0); - }, - hsla: function (h, s, l, a) { - function hue(h) { - h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); - if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; } - else if (h * 2 < 1) { return m2; } - else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; } - else { return m1; } - } - - h = (number(h) % 360) / 360; - s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a)); - - var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; - var m1 = l * 2 - m2; - - return this.rgba(hue(h + 1/3) * 255, - hue(h) * 255, - hue(h - 1/3) * 255, - a); - }, - - hsv: function(h, s, v) { - return this.hsva(h, s, v, 1.0); - }, - - hsva: function(h, s, v, a) { - h = ((number(h) % 360) / 360) * 360; - s = number(s); v = number(v); a = number(a); - - var i, f; - i = Math.floor((h / 60) % 6); - f = (h / 60) - i; - - var vs = [v, - v * (1 - s), - v * (1 - f * s), - v * (1 - (1 - f) * s)]; - var perm = [[0, 3, 1], - [2, 0, 1], - [1, 0, 3], - [1, 2, 0], - [3, 1, 0], - [0, 1, 2]]; - - return this.rgba(vs[perm[i][0]] * 255, - vs[perm[i][1]] * 255, - vs[perm[i][2]] * 255, - a); - }, - - hue: function (color) { - return new(tree.Dimension)(color.toHSL().h); - }, - saturation: function (color) { - return new(tree.Dimension)(color.toHSL().s * 100, '%'); - }, - lightness: function (color) { - return new(tree.Dimension)(color.toHSL().l * 100, '%'); - }, - hsvhue: function(color) { - return new(tree.Dimension)(color.toHSV().h); - }, - hsvsaturation: function (color) { - return new(tree.Dimension)(color.toHSV().s * 100, '%'); - }, - hsvvalue: function (color) { - return new(tree.Dimension)(color.toHSV().v * 100, '%'); - }, - red: function (color) { - return new(tree.Dimension)(color.rgb[0]); - }, - green: function (color) { - return new(tree.Dimension)(color.rgb[1]); - }, - blue: function (color) { - return new(tree.Dimension)(color.rgb[2]); - }, - alpha: function (color) { - return new(tree.Dimension)(color.toHSL().a); - }, - luma: function (color) { - return new(tree.Dimension)(color.luma() * color.alpha * 100, '%'); - }, - luminance: function (color) { - var luminance = - (0.2126 * color.rgb[0] / 255) - + (0.7152 * color.rgb[1] / 255) - + (0.0722 * color.rgb[2] / 255); - - return new(tree.Dimension)(luminance * color.alpha * 100, '%'); - }, - saturate: function (color, amount) { - // filter: saturate(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - var hsl = color.toHSL(); - - hsl.s += amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - desaturate: function (color, amount) { - var hsl = color.toHSL(); - - hsl.s -= amount.value / 100; - hsl.s = clamp(hsl.s); - return hsla(hsl); - }, - lighten: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l += amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - darken: function (color, amount) { - var hsl = color.toHSL(); - - hsl.l -= amount.value / 100; - hsl.l = clamp(hsl.l); - return hsla(hsl); - }, - fadein: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a += amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fadeout: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a -= amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - fade: function (color, amount) { - var hsl = color.toHSL(); - - hsl.a = amount.value / 100; - hsl.a = clamp(hsl.a); - return hsla(hsl); - }, - spin: function (color, amount) { - var hsl = color.toHSL(); - var hue = (hsl.h + amount.value) % 360; - - hsl.h = hue < 0 ? 360 + hue : hue; - - return hsla(hsl); - }, - // - // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein - // http://sass-lang.com - // - mix: function (color1, color2, weight) { - if (!weight) { - weight = new(tree.Dimension)(50); - } - var p = weight.value / 100.0; - var w = p * 2 - 1; - var a = color1.toHSL().a - color2.toHSL().a; - - var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; - var w2 = 1 - w1; - - var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, - color1.rgb[1] * w1 + color2.rgb[1] * w2, - color1.rgb[2] * w1 + color2.rgb[2] * w2]; - - var alpha = color1.alpha * p + color2.alpha * (1 - p); - - return new(tree.Color)(rgb, alpha); - }, - greyscale: function (color) { - return this.desaturate(color, new(tree.Dimension)(100)); - }, - contrast: function (color, dark, light, threshold) { - // filter: contrast(3.2); - // should be kept as is, so check for color - if (!color.rgb) { - return null; - } - if (typeof light === 'undefined') { - light = this.rgba(255, 255, 255, 1.0); - } - if (typeof dark === 'undefined') { - dark = this.rgba(0, 0, 0, 1.0); - } - //Figure out which is actually light and dark! - if (dark.luma() > light.luma()) { - var t = light; - light = dark; - dark = t; - } - if (typeof threshold === 'undefined') { - threshold = 0.43; - } else { - threshold = number(threshold); - } - if (color.luma() < threshold) { - return light; - } else { - return dark; - } - }, - e: function (str) { - return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str.value); - }, - escape: function (str) { - return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); - }, - replace: function (string, pattern, replacement, flags) { - var result = string.value; - - result = result.replace(new RegExp(pattern.value, flags ? flags.value : ''), replacement.value); - return new(tree.Quoted)(string.quote || '', result, string.escaped); - }, - '%': function (string /* arg, arg, ...*/) { - var args = Array.prototype.slice.call(arguments, 1), - result = string.value; - - for (var i = 0; i < args.length; i++) { - /*jshint loopfunc:true */ - result = result.replace(/%[sda]/i, function(token) { - var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); - return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; - }); - } - result = result.replace(/%%/g, '%'); - return new(tree.Quoted)(string.quote || '', result, string.escaped); - }, - unit: function (val, unit) { - if(!(val instanceof tree.Dimension)) { - throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof tree.Operation ? ". Have you forgotten parenthesis?" : "") }; - } - if (unit) { - if (unit instanceof tree.Keyword) { - unit = unit.value; - } else { - unit = unit.toCSS(); - } - } else { - unit = ""; - } - return new(tree.Dimension)(val.value, unit); - }, - convert: function (val, unit) { - return val.convertTo(unit.value); - }, - round: function (n, f) { - var fraction = typeof(f) === "undefined" ? 0 : f.value; - return _math(function(num) { return num.toFixed(fraction); }, null, n); - }, - pi: function () { - return new(tree.Dimension)(Math.PI); - }, - mod: function(a, b) { - return new(tree.Dimension)(a.value % b.value, a.unit); - }, - pow: function(x, y) { - if (typeof x === "number" && typeof y === "number") { - x = new(tree.Dimension)(x); - y = new(tree.Dimension)(y); - } else if (!(x instanceof tree.Dimension) || !(y instanceof tree.Dimension)) { - throw { type: "Argument", message: "arguments must be numbers" }; - } - - return new(tree.Dimension)(Math.pow(x.value, y.value), x.unit); - }, - _minmax: function (isMin, args) { - args = Array.prototype.slice.call(args); - switch(args.length) { - case 0: throw { type: "Argument", message: "one or more arguments required" }; - } - var i, j, current, currentUnified, referenceUnified, unit, unitStatic, unitClone, - order = [], // elems only contains original argument values. - values = {}; // key is the unit.toString() for unified tree.Dimension values, - // value is the index into the order array. - for (i = 0; i < args.length; i++) { - current = args[i]; - if (!(current instanceof tree.Dimension)) { - if(Array.isArray(args[i].value)) { - Array.prototype.push.apply(args, Array.prototype.slice.call(args[i].value)); - } - continue; - } - currentUnified = current.unit.toString() === "" && unitClone !== undefined ? new(tree.Dimension)(current.value, unitClone).unify() : current.unify(); - unit = currentUnified.unit.toString() === "" && unitStatic !== undefined ? unitStatic : currentUnified.unit.toString(); - unitStatic = unit !== "" && unitStatic === undefined || unit !== "" && order[0].unify().unit.toString() === "" ? unit : unitStatic; - unitClone = unit !== "" && unitClone === undefined ? current.unit.toString() : unitClone; - j = values[""] !== undefined && unit !== "" && unit === unitStatic ? values[""] : values[unit]; - if (j === undefined) { - if(unitStatic !== undefined && unit !== unitStatic) { - throw{ type: "Argument", message: "incompatible types" }; - } - values[unit] = order.length; - order.push(current); - continue; - } - referenceUnified = order[j].unit.toString() === "" && unitClone !== undefined ? new(tree.Dimension)(order[j].value, unitClone).unify() : order[j].unify(); - if ( isMin && currentUnified.value < referenceUnified.value || - !isMin && currentUnified.value > referenceUnified.value) { - order[j] = current; - } - } - if (order.length == 1) { - return order[0]; - } - args = order.map(function (a) { return a.toCSS(this.env); }).join(this.env.compress ? "," : ", "); - return new(tree.Anonymous)((isMin ? "min" : "max") + "(" + args + ")"); - }, - min: function () { - return this._minmax(true, arguments); - }, - max: function () { - return this._minmax(false, arguments); - }, - "get-unit": function (n) { - return new(tree.Anonymous)(n.unit); - }, - argb: function (color) { - return new(tree.Anonymous)(color.toARGB()); - }, - percentage: function (n) { - return new(tree.Dimension)(n.value * 100, '%'); - }, - color: function (n) { - if (n instanceof tree.Quoted) { - var colorCandidate = n.value, - returnColor; - returnColor = tree.Color.fromKeyword(colorCandidate); - if (returnColor) { - return returnColor; - } - if (/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/.test(colorCandidate)) { - return new(tree.Color)(colorCandidate.slice(1)); - } - throw { type: "Argument", message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF" }; - } else { - throw { type: "Argument", message: "argument must be a string" }; - } - }, - iscolor: function (n) { - return this._isa(n, tree.Color); - }, - isnumber: function (n) { - return this._isa(n, tree.Dimension); - }, - isstring: function (n) { - return this._isa(n, tree.Quoted); - }, - iskeyword: function (n) { - return this._isa(n, tree.Keyword); - }, - isurl: function (n) { - return this._isa(n, tree.URL); - }, - ispixel: function (n) { - return this.isunit(n, 'px'); - }, - ispercentage: function (n) { - return this.isunit(n, '%'); - }, - isem: function (n) { - return this.isunit(n, 'em'); - }, - isunit: function (n, unit) { - return (n instanceof tree.Dimension) && n.unit.is(unit.value || unit) ? tree.True : tree.False; - }, - _isa: function (n, Type) { - return (n instanceof Type) ? tree.True : tree.False; - }, - tint: function(color, amount) { - return this.mix(this.rgb(255,255,255), color, amount); - }, - shade: function(color, amount) { - return this.mix(this.rgb(0, 0, 0), color, amount); - }, - extract: function(values, index) { - index = index.value - 1; // (1-based index) - // handle non-array values as an array of length 1 - // return 'undefined' if index is invalid - return Array.isArray(values.value) - ? values.value[index] : Array(values)[index]; - }, - length: function(values) { - var n = Array.isArray(values.value) ? values.value.length : 1; - return new tree.Dimension(n); - }, - - "data-uri": function(mimetypeNode, filePathNode) { - - if (typeof window !== 'undefined') { - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - - var mimetype = mimetypeNode.value; - var filePath = (filePathNode && filePathNode.value); - - var fs = require('./fs'), - path = require('path'), - useBase64 = false; - - if (arguments.length < 2) { - filePath = mimetype; - } - - if (this.env.isPathRelative(filePath)) { - if (this.currentFileInfo.relativeUrls) { - filePath = path.join(this.currentFileInfo.currentDirectory, filePath); - } else { - filePath = path.join(this.currentFileInfo.entryPath, filePath); - } - } - - // detect the mimetype if not given - if (arguments.length < 2) { - var mime; - try { - mime = require('mime'); - } catch (ex) { - mime = tree._mime; - } - - mimetype = mime.lookup(filePath); - - // use base 64 unless it's an ASCII or UTF-8 format - var charset = mime.charsets.lookup(mimetype); - useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0; - if (useBase64) { mimetype += ';base64'; } - } - else { - useBase64 = /;base64$/.test(mimetype); - } - - var buf = fs.readFileSync(filePath); - - // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded - // and the --ieCompat flag is enabled, return a normal url() instead. - var DATA_URI_MAX_KB = 32, - fileSizeInKB = parseInt((buf.length / 1024), 10); - if (fileSizeInKB >= DATA_URI_MAX_KB) { - - if (this.env.ieCompat !== false) { - if (!this.env.silent) { - console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB); - } - - return new tree.URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env); - } - } - - buf = useBase64 ? buf.toString('base64') - : encodeURIComponent(buf); - - var uri = "\"data:" + mimetype + ',' + buf + "\""; - return new(tree.URL)(new(tree.Anonymous)(uri)); - }, - - "svg-gradient": function(direction) { - - function throwArgumentDescriptor() { - throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" }; - } - - if (arguments.length < 3) { - throwArgumentDescriptor(); - } - var stops = Array.prototype.slice.call(arguments, 1), - gradientDirectionSvg, - gradientType = "linear", - rectangleDimension = 'x="0" y="0" width="1" height="1"', - useBase64 = true, - renderEnv = {compress: false}, - returner, - directionValue = direction.toCSS(renderEnv), - i, color, position, positionValue, alpha; - - switch (directionValue) { - case "to bottom": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"'; - break; - case "to right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"'; - break; - case "to bottom right": - gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"'; - break; - case "to top right": - gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"'; - break; - case "ellipse": - case "ellipse at center": - gradientType = "radial"; - gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"'; - rectangleDimension = 'x="-50" y="-50" width="101" height="101"'; - break; - default: - throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" }; - } - returner = '' + - '' + - '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>'; - - for (i = 0; i < stops.length; i+= 1) { - if (stops[i].value) { - color = stops[i].value[0]; - position = stops[i].value[1]; - } else { - color = stops[i]; - position = undefined; - } - - if (!(color instanceof tree.Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof tree.Dimension))) { - throwArgumentDescriptor(); - } - positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%"; - alpha = color.alpha; - returner += ''; - } - returner += '' + - ''; - - if (useBase64) { - try { - returner = require('./encoder').encodeBase64(returner); // TODO browser implementation - } catch(e) { - useBase64 = false; - } - } - - returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'"; - return new(tree.URL)(new(tree.Anonymous)(returner)); - } -}; - -// these static methods are used as a fallback when the optional 'mime' dependency is missing -tree._mime = { - // this map is intentionally incomplete - // if you want more, install 'mime' dep - _types: { - '.htm' : 'text/html', - '.html': 'text/html', - '.gif' : 'image/gif', - '.jpg' : 'image/jpeg', - '.jpeg': 'image/jpeg', - '.png' : 'image/png' - }, - lookup: function (filepath) { - var ext = require('path').extname(filepath), - type = tree._mime._types[ext]; - if (type === undefined) { - throw new Error('Optional dependency "mime" is required for ' + ext); - } - return type; - }, - charsets: { - lookup: function (type) { - // assumes all text types are UTF-8 - return type && (/^text\//).test(type) ? 'UTF-8' : ''; - } - } -}; - -// Math - -var mathFunctions = { - // name, unit - ceil: null, - floor: null, - sqrt: null, - abs: null, - tan: "", - sin: "", - cos: "", - atan: "rad", - asin: "rad", - acos: "rad" -}; - -function _math(fn, unit, n) { - if (!(n instanceof tree.Dimension)) { - throw { type: "Argument", message: "argument must be a number" }; - } - if (unit == null) { - unit = n.unit; - } else { - n = n.unify(); - } - return new(tree.Dimension)(fn(parseFloat(n.value)), unit); -} - -// ~ End of Math - -// Color Blending -// ref: http://www.w3.org/TR/compositing-1 - -function colorBlend(mode, color1, color2) { - var ab = color1.alpha, cb, // backdrop - as = color2.alpha, cs, // source - ar, cr, r = []; // result - - ar = as + ab * (1 - as); - for (var i = 0; i < 3; i++) { - cb = color1.rgb[i] / 255; - cs = color2.rgb[i] / 255; - cr = mode(cb, cs); - if (ar) { - cr = (as * cs + ab * (cb - - as * (cb + cs - cr))) / ar; - } - r[i] = cr * 255; - } - - return new(tree.Color)(r, ar); -} - -var colorBlendMode = { - multiply: function(cb, cs) { - return cb * cs; - }, - screen: function(cb, cs) { - return cb + cs - cb * cs; - }, - overlay: function(cb, cs) { - cb *= 2; - return (cb <= 1) - ? colorBlendMode.multiply(cb, cs) - : colorBlendMode.screen(cb - 1, cs); - }, - softlight: function(cb, cs) { - var d = 1, e = cb; - if (cs > 0.5) { - e = 1; - d = (cb > 0.25) ? Math.sqrt(cb) - : ((16 * cb - 12) * cb + 4) * cb; - } - return cb - (1 - 2 * cs) * e * (d - cb); - }, - hardlight: function(cb, cs) { - return colorBlendMode.overlay(cs, cb); - }, - difference: function(cb, cs) { - return Math.abs(cb - cs); - }, - exclusion: function(cb, cs) { - return cb + cs - 2 * cb * cs; - }, - - // non-w3c functions: - average: function(cb, cs) { - return (cb + cs) / 2; - }, - negation: function(cb, cs) { - return 1 - Math.abs(cb + cs - 1); - } -}; - -// ~ End of Color Blending - -tree.defaultFunc = { - eval: function () { - var v = this.value_, e = this.error_; - if (e) { - throw e; - } - if (v != null) { - return v ? tree.True : tree.False; - } - }, - value: function (v) { - this.value_ = v; - }, - error: function (e) { - this.error_ = e; - }, - reset: function () { - this.value_ = this.error_ = null; - } -}; - -function initFunctions() { - var f, tf = tree.functions; - - // math - for (f in mathFunctions) { - if (mathFunctions.hasOwnProperty(f)) { - tf[f] = _math.bind(null, Math[f], mathFunctions[f]); - } - } - - // color blending - for (f in colorBlendMode) { - if (colorBlendMode.hasOwnProperty(f)) { - tf[f] = colorBlend.bind(null, colorBlendMode[f]); - } - } - - // default - f = tree.defaultFunc; - tf["default"] = f.eval.bind(f); - -} initFunctions(); - -function hsla(color) { - return tree.functions.hsla(color.h, color.s, color.l, color.a); -} - -function scaled(n, size) { - if (n instanceof tree.Dimension && n.unit.is('%')) { - return parseFloat(n.value * size / 100); - } else { - return number(n); - } -} - -function number(n) { - if (n instanceof tree.Dimension) { - return parseFloat(n.unit.is('%') ? n.value / 100 : n.value); - } else if (typeof(n) === 'number') { - return n; - } else { - throw { - error: "RuntimeError", - message: "color functions take numbers as parameters" - }; - } -} - -function clamp(val) { - return Math.min(1, Math.max(0, val)); -} - -tree.fround = function(env, value) { - var p = env && env.numPrecision; - //add "epsilon" to ensure numbers like 1.000000005 (represented as 1.000000004999....) are properly rounded... - return (p == null) ? value : Number((value + 2e-16).toFixed(p)); -}; - -tree.functionCall = function(env, currentFileInfo) { - this.env = env; - this.currentFileInfo = currentFileInfo; -}; - -tree.functionCall.prototype = tree.functions; - -})(require('./tree')); - -(function (tree) { - tree.colors = { - 'aliceblue':'#f0f8ff', - 'antiquewhite':'#faebd7', - 'aqua':'#00ffff', - 'aquamarine':'#7fffd4', - 'azure':'#f0ffff', - 'beige':'#f5f5dc', - 'bisque':'#ffe4c4', - 'black':'#000000', - 'blanchedalmond':'#ffebcd', - 'blue':'#0000ff', - 'blueviolet':'#8a2be2', - 'brown':'#a52a2a', - 'burlywood':'#deb887', - 'cadetblue':'#5f9ea0', - 'chartreuse':'#7fff00', - 'chocolate':'#d2691e', - 'coral':'#ff7f50', - 'cornflowerblue':'#6495ed', - 'cornsilk':'#fff8dc', - 'crimson':'#dc143c', - 'cyan':'#00ffff', - 'darkblue':'#00008b', - 'darkcyan':'#008b8b', - 'darkgoldenrod':'#b8860b', - 'darkgray':'#a9a9a9', - 'darkgrey':'#a9a9a9', - 'darkgreen':'#006400', - 'darkkhaki':'#bdb76b', - 'darkmagenta':'#8b008b', - 'darkolivegreen':'#556b2f', - 'darkorange':'#ff8c00', - 'darkorchid':'#9932cc', - 'darkred':'#8b0000', - 'darksalmon':'#e9967a', - 'darkseagreen':'#8fbc8f', - 'darkslateblue':'#483d8b', - 'darkslategray':'#2f4f4f', - 'darkslategrey':'#2f4f4f', - 'darkturquoise':'#00ced1', - 'darkviolet':'#9400d3', - 'deeppink':'#ff1493', - 'deepskyblue':'#00bfff', - 'dimgray':'#696969', - 'dimgrey':'#696969', - 'dodgerblue':'#1e90ff', - 'firebrick':'#b22222', - 'floralwhite':'#fffaf0', - 'forestgreen':'#228b22', - 'fuchsia':'#ff00ff', - 'gainsboro':'#dcdcdc', - 'ghostwhite':'#f8f8ff', - 'gold':'#ffd700', - 'goldenrod':'#daa520', - 'gray':'#808080', - 'grey':'#808080', - 'green':'#008000', - 'greenyellow':'#adff2f', - 'honeydew':'#f0fff0', - 'hotpink':'#ff69b4', - 'indianred':'#cd5c5c', - 'indigo':'#4b0082', - 'ivory':'#fffff0', - 'khaki':'#f0e68c', - 'lavender':'#e6e6fa', - 'lavenderblush':'#fff0f5', - 'lawngreen':'#7cfc00', - 'lemonchiffon':'#fffacd', - 'lightblue':'#add8e6', - 'lightcoral':'#f08080', - 'lightcyan':'#e0ffff', - 'lightgoldenrodyellow':'#fafad2', - 'lightgray':'#d3d3d3', - 'lightgrey':'#d3d3d3', - 'lightgreen':'#90ee90', - 'lightpink':'#ffb6c1', - 'lightsalmon':'#ffa07a', - 'lightseagreen':'#20b2aa', - 'lightskyblue':'#87cefa', - 'lightslategray':'#778899', - 'lightslategrey':'#778899', - 'lightsteelblue':'#b0c4de', - 'lightyellow':'#ffffe0', - 'lime':'#00ff00', - 'limegreen':'#32cd32', - 'linen':'#faf0e6', - 'magenta':'#ff00ff', - 'maroon':'#800000', - 'mediumaquamarine':'#66cdaa', - 'mediumblue':'#0000cd', - 'mediumorchid':'#ba55d3', - 'mediumpurple':'#9370d8', - 'mediumseagreen':'#3cb371', - 'mediumslateblue':'#7b68ee', - 'mediumspringgreen':'#00fa9a', - 'mediumturquoise':'#48d1cc', - 'mediumvioletred':'#c71585', - 'midnightblue':'#191970', - 'mintcream':'#f5fffa', - 'mistyrose':'#ffe4e1', - 'moccasin':'#ffe4b5', - 'navajowhite':'#ffdead', - 'navy':'#000080', - 'oldlace':'#fdf5e6', - 'olive':'#808000', - 'olivedrab':'#6b8e23', - 'orange':'#ffa500', - 'orangered':'#ff4500', - 'orchid':'#da70d6', - 'palegoldenrod':'#eee8aa', - 'palegreen':'#98fb98', - 'paleturquoise':'#afeeee', - 'palevioletred':'#d87093', - 'papayawhip':'#ffefd5', - 'peachpuff':'#ffdab9', - 'peru':'#cd853f', - 'pink':'#ffc0cb', - 'plum':'#dda0dd', - 'powderblue':'#b0e0e6', - 'purple':'#800080', - 'red':'#ff0000', - 'rosybrown':'#bc8f8f', - 'royalblue':'#4169e1', - 'saddlebrown':'#8b4513', - 'salmon':'#fa8072', - 'sandybrown':'#f4a460', - 'seagreen':'#2e8b57', - 'seashell':'#fff5ee', - 'sienna':'#a0522d', - 'silver':'#c0c0c0', - 'skyblue':'#87ceeb', - 'slateblue':'#6a5acd', - 'slategray':'#708090', - 'slategrey':'#708090', - 'snow':'#fffafa', - 'springgreen':'#00ff7f', - 'steelblue':'#4682b4', - 'tan':'#d2b48c', - 'teal':'#008080', - 'thistle':'#d8bfd8', - 'tomato':'#ff6347', - 'turquoise':'#40e0d0', - 'violet':'#ee82ee', - 'wheat':'#f5deb3', - 'white':'#ffffff', - 'whitesmoke':'#f5f5f5', - 'yellow':'#ffff00', - 'yellowgreen':'#9acd32' - }; -})(require('./tree')); - -(function (tree) { - -tree.debugInfo = function(env, ctx, lineSeperator) { - var result=""; - if (env.dumpLineNumbers && !env.compress) { - switch(env.dumpLineNumbers) { - case 'comments': - result = tree.debugInfo.asComment(ctx); - break; - case 'mediaquery': - result = tree.debugInfo.asMediaQuery(ctx); - break; - case 'all': - result = tree.debugInfo.asComment(ctx) + (lineSeperator || "") + tree.debugInfo.asMediaQuery(ctx); - break; - } - } - return result; -}; - -tree.debugInfo.asComment = function(ctx) { - return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n'; -}; - -tree.debugInfo.asMediaQuery = function(ctx) { - return '@media -sass-debug-info{filename{font-family:' + - ('file://' + ctx.debugInfo.fileName).replace(/([.:\/\\])/g, function (a) { - if (a == '\\') { - a = '\/'; - } - return '\\' + a; - }) + - '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n'; -}; - -tree.find = function (obj, fun) { - for (var i = 0, r; i < obj.length; i++) { - r = fun.call(obj, obj[i]); - if (r) { return r; } - } - return null; -}; - -tree.jsify = function (obj) { - if (Array.isArray(obj.value) && (obj.value.length > 1)) { - return '[' + obj.value.map(function (v) { return v.toCSS(); }).join(', ') + ']'; - } else { - return obj.toCSS(); - } -}; - -tree.toCSS = function (env) { - var strs = []; - this.genCSS(env, { - add: function(chunk, fileInfo, index) { - strs.push(chunk); - }, - isEmpty: function () { - return strs.length === 0; - } - }); - return strs.join(''); -}; - -tree.outputRuleset = function (env, output, rules) { - var ruleCnt = rules.length, i; - env.tabLevel = (env.tabLevel | 0) + 1; - - // Compressed - if (env.compress) { - output.add('{'); - for (i = 0; i < ruleCnt; i++) { - rules[i].genCSS(env, output); - } - output.add('}'); - env.tabLevel--; - return; - } - - // Non-compressed - var tabSetStr = '\n' + Array(env.tabLevel).join(" "), tabRuleStr = tabSetStr + " "; - if (!ruleCnt) { - output.add(" {" + tabSetStr + '}'); - } else { - output.add(" {" + tabRuleStr); - rules[0].genCSS(env, output); - for (i = 1; i < ruleCnt; i++) { - output.add(tabRuleStr); - rules[i].genCSS(env, output); - } - output.add(tabSetStr + '}'); - } - - env.tabLevel--; -}; - -})(require('./tree')); - -(function (tree) { - -tree.Alpha = function (val) { - this.value = val; -}; -tree.Alpha.prototype = { - type: "Alpha", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { return new tree.Alpha(this.value.eval(env)); } - return this; - }, - genCSS: function (env, output) { - output.add("alpha(opacity="); - - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - - output.add(")"); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Anonymous = function (value, index, currentFileInfo, mapLines, rulesetLike) { - this.value = value; - this.index = index; - this.mapLines = mapLines; - this.currentFileInfo = currentFileInfo; - this.rulesetLike = (typeof rulesetLike === 'undefined')? false : rulesetLike; -}; -tree.Anonymous.prototype = { - type: "Anonymous", - eval: function () { - return new tree.Anonymous(this.value, this.index, this.currentFileInfo, this.mapLines, this.rulesetLike); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left = this.toCSS(), - right = x.toCSS(); - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - }, - isRulesetLike: function() { - return this.rulesetLike; - }, - genCSS: function (env, output) { - output.add(this.value, this.currentFileInfo, this.index, this.mapLines); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Assignment = function (key, val) { - this.key = key; - this.value = val; -}; -tree.Assignment.prototype = { - type: "Assignment", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - eval: function (env) { - if (this.value.eval) { - return new(tree.Assignment)(this.key, this.value.eval(env)); - } - return this; - }, - genCSS: function (env, output) { - output.add(this.key + '='); - if (this.value.genCSS) { - this.value.genCSS(env, output); - } else { - output.add(this.value); - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -// -// A function call node. -// -tree.Call = function (name, args, index, currentFileInfo) { - this.name = name; - this.args = args; - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Call.prototype = { - type: "Call", - accept: function (visitor) { - if (this.args) { - this.args = visitor.visitArray(this.args); - } - }, - // - // When evaluating a function call, - // we either find the function in `tree.functions` [1], - // in which case we call it, passing the evaluated arguments, - // if this returns null or we cannot find the function, we - // simply print it out as it appeared originally [2]. - // - // The *functions.js* file contains the built-in functions. - // - // The reason why we evaluate the arguments, is in the case where - // we try to pass a variable to a function, like: `saturate(@color)`. - // The function should receive the value, not the variable. - // - eval: function (env) { - var args = this.args.map(function (a) { return a.eval(env); }), - nameLC = this.name.toLowerCase(), - result, func; - - if (nameLC in tree.functions) { // 1. - try { - func = new tree.functionCall(env, this.currentFileInfo); - result = func[nameLC].apply(func, args); - if (result != null) { - return result; - } - } catch (e) { - throw { type: e.type || "Runtime", - message: "error evaluating function `" + this.name + "`" + - (e.message ? ': ' + e.message : ''), - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - return new tree.Call(this.name, args, this.index, this.currentFileInfo); - }, - - genCSS: function (env, output) { - output.add(this.name + "(", this.currentFileInfo, this.index); - - for(var i = 0; i < this.args.length; i++) { - this.args[i].genCSS(env, output); - if (i + 1 < this.args.length) { - output.add(", "); - } - } - - output.add(")"); - }, - - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { -// -// RGB Colors - #ff0014, #eee -// -tree.Color = function (rgb, a) { - // - // The end goal here, is to parse the arguments - // into an integer triplet, such as `128, 255, 0` - // - // This facilitates operations and conversions. - // - if (Array.isArray(rgb)) { - this.rgb = rgb; - } else if (rgb.length == 6) { - this.rgb = rgb.match(/.{2}/g).map(function (c) { - return parseInt(c, 16); - }); - } else { - this.rgb = rgb.split('').map(function (c) { - return parseInt(c + c, 16); - }); - } - this.alpha = typeof(a) === 'number' ? a : 1; -}; - -var transparentKeyword = "transparent"; - -tree.Color.prototype = { - type: "Color", - eval: function () { return this; }, - luma: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255; - - r = (r <= 0.03928) ? r / 12.92 : Math.pow(((r + 0.055) / 1.055), 2.4); - g = (g <= 0.03928) ? g / 12.92 : Math.pow(((g + 0.055) / 1.055), 2.4); - b = (b <= 0.03928) ? b / 12.92 : Math.pow(((b + 0.055) / 1.055), 2.4); - - return 0.2126 * r + 0.7152 * g + 0.0722 * b; - }, - - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env, doNotCompress) { - var compress = env && env.compress && !doNotCompress, - alpha = tree.fround(env, this.alpha); - - // If we have some transparency, the only way to represent it - // is via `rgba`. Otherwise, we use the hex representation, - // which has better compatibility with older browsers. - // Values are capped between `0` and `255`, rounded and zero-padded. - if (alpha < 1) { - if (alpha === 0 && this.isTransparentKeyword) { - return transparentKeyword; - } - return "rgba(" + this.rgb.map(function (c) { - return clamp(Math.round(c), 255); - }).concat(clamp(alpha, 1)) - .join(',' + (compress ? '' : ' ')) + ")"; - } else { - var color = this.toRGB(); - - if (compress) { - var splitcolor = color.split(''); - - // Convert color to short format - if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) { - color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5]; - } - } - - return color; - } - }, - - // - // Operations have to be done per-channel, if not, - // channels will spill onto each other. Once we have - // our result, in the form of an integer triplet, - // we create a new Color node to hold the result. - // - operate: function (env, op, other) { - var rgb = []; - var alpha = this.alpha * (1 - other.alpha) + other.alpha; - for (var c = 0; c < 3; c++) { - rgb[c] = tree.operate(env, op, this.rgb[c], other.rgb[c]); - } - return new(tree.Color)(rgb, alpha); - }, - - toRGB: function () { - return toHex(this.rgb); - }, - - toHSL: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, l = (max + min) / 2, d = max - min; - - if (max === min) { - h = s = 0; - } else { - s = l > 0.5 ? d / (2 - max - min) : d / (max + min); - - switch (max) { - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, l: l, a: a }; - }, - //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript - toHSV: function () { - var r = this.rgb[0] / 255, - g = this.rgb[1] / 255, - b = this.rgb[2] / 255, - a = this.alpha; - - var max = Math.max(r, g, b), min = Math.min(r, g, b); - var h, s, v = max; - - var d = max - min; - if (max === 0) { - s = 0; - } else { - s = d / max; - } - - if (max === min) { - h = 0; - } else { - switch(max){ - case r: h = (g - b) / d + (g < b ? 6 : 0); break; - case g: h = (b - r) / d + 2; break; - case b: h = (r - g) / d + 4; break; - } - h /= 6; - } - return { h: h * 360, s: s, v: v, a: a }; - }, - toARGB: function () { - return toHex([this.alpha * 255].concat(this.rgb)); - }, - compare: function (x) { - if (!x.rgb) { - return -1; - } - - return (x.rgb[0] === this.rgb[0] && - x.rgb[1] === this.rgb[1] && - x.rgb[2] === this.rgb[2] && - x.alpha === this.alpha) ? 0 : -1; - } -}; - -tree.Color.fromKeyword = function(keyword) { - keyword = keyword.toLowerCase(); - - if (tree.colors.hasOwnProperty(keyword)) { - // detect named color - return new(tree.Color)(tree.colors[keyword].slice(1)); - } - if (keyword === transparentKeyword) { - var transparent = new(tree.Color)([0, 0, 0], 0); - transparent.isTransparentKeyword = true; - return transparent; - } -}; - -function toHex(v) { - return '#' + v.map(function (c) { - c = clamp(Math.round(c), 255); - return (c < 16 ? '0' : '') + c.toString(16); - }).join(''); -} - -function clamp(v, max) { - return Math.min(Math.max(v, 0), max); -} - -})(require('../tree')); - -(function (tree) { - -tree.Comment = function (value, silent, index, currentFileInfo) { - this.value = value; - this.silent = !!silent; - this.currentFileInfo = currentFileInfo; -}; -tree.Comment.prototype = { - type: "Comment", - genCSS: function (env, output) { - if (this.debugInfo) { - output.add(tree.debugInfo(env, this), this.currentFileInfo, this.index); - } - output.add(this.value.trim()); //TODO shouldn't need to trim, we shouldn't grab the \n - }, - toCSS: tree.toCSS, - isSilent: function(env) { - var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced), - isCompressed = env.compress && !this.value.match(/^\/\*!/); - return this.silent || isReference || isCompressed; - }, - eval: function () { return this; }, - markReferenced: function () { - this.isReferenced = true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Condition = function (op, l, r, i, negate) { - this.op = op.trim(); - this.lvalue = l; - this.rvalue = r; - this.index = i; - this.negate = negate; -}; -tree.Condition.prototype = { - type: "Condition", - accept: function (visitor) { - this.lvalue = visitor.visit(this.lvalue); - this.rvalue = visitor.visit(this.rvalue); - }, - eval: function (env) { - var a = this.lvalue.eval(env), - b = this.rvalue.eval(env); - - var i = this.index, result; - - result = (function (op) { - switch (op) { - case 'and': - return a && b; - case 'or': - return a || b; - default: - if (a.compare) { - result = a.compare(b); - } else if (b.compare) { - result = b.compare(a); - } else { - throw { type: "Type", - message: "Unable to perform comparison", - index: i }; - } - switch (result) { - case -1: return op === '<' || op === '=<' || op === '<='; - case 0: return op === '=' || op === '>=' || op === '=<' || op === '<='; - case 1: return op === '>' || op === '>='; - } - } - })(this.op); - return this.negate ? !result : result; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.DetachedRuleset = function (ruleset, frames) { - this.ruleset = ruleset; - this.frames = frames; -}; -tree.DetachedRuleset.prototype = { - type: "DetachedRuleset", - accept: function (visitor) { - this.ruleset = visitor.visit(this.ruleset); - }, - eval: function (env) { - var frames = this.frames || env.frames.slice(0); - return new tree.DetachedRuleset(this.ruleset, frames); - }, - callEval: function (env) { - return this.ruleset.eval(this.frames ? new(tree.evalEnv)(env, this.frames.concat(env.frames)) : env); - } -}; -})(require('../tree')); - -(function (tree) { - -// -// A number with a unit -// -tree.Dimension = function (value, unit) { - this.value = parseFloat(value); - this.unit = (unit && unit instanceof tree.Unit) ? unit : - new(tree.Unit)(unit ? [unit] : undefined); -}; - -tree.Dimension.prototype = { - type: "Dimension", - accept: function (visitor) { - this.unit = visitor.visit(this.unit); - }, - eval: function (env) { - return this; - }, - toColor: function () { - return new(tree.Color)([this.value, this.value, this.value]); - }, - genCSS: function (env, output) { - if ((env && env.strictUnits) && !this.unit.isSingular()) { - throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString()); - } - - var value = tree.fround(env, this.value), - strValue = String(value); - - if (value !== 0 && value < 0.000001 && value > -0.000001) { - // would be output 1e-6 etc. - strValue = value.toFixed(20).replace(/0+$/, ""); - } - - if (env && env.compress) { - // Zero values doesn't need a unit - if (value === 0 && this.unit.isLength()) { - output.add(strValue); - return; - } - - // Float values doesn't need a leading zero - if (value > 0 && value < 1) { - strValue = (strValue).substr(1); - } - } - - output.add(strValue); - this.unit.genCSS(env, output); - }, - toCSS: tree.toCSS, - - // In an operation between two Dimensions, - // we default to the first Dimension's unit, - // so `1px + 2` will yield `3px`. - operate: function (env, op, other) { - /*jshint noempty:false */ - var value = tree.operate(env, op, this.value, other.value), - unit = this.unit.clone(); - - if (op === '+' || op === '-') { - if (unit.numerator.length === 0 && unit.denominator.length === 0) { - unit.numerator = other.unit.numerator.slice(0); - unit.denominator = other.unit.denominator.slice(0); - } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) { - // do nothing - } else { - other = other.convertTo(this.unit.usedUnits()); - - if(env.strictUnits && other.unit.toString() !== unit.toString()) { - throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() + - "' and '" + other.unit.toString() + "'."); - } - - value = tree.operate(env, op, this.value, other.value); - } - } else if (op === '*') { - unit.numerator = unit.numerator.concat(other.unit.numerator).sort(); - unit.denominator = unit.denominator.concat(other.unit.denominator).sort(); - unit.cancel(); - } else if (op === '/') { - unit.numerator = unit.numerator.concat(other.unit.denominator).sort(); - unit.denominator = unit.denominator.concat(other.unit.numerator).sort(); - unit.cancel(); - } - return new(tree.Dimension)(value, unit); - }, - - compare: function (other) { - if (other instanceof tree.Dimension) { - var a, b, - aValue, bValue; - - if (this.unit.isEmpty() || other.unit.isEmpty()) { - a = this; - b = other; - } else { - a = this.unify(); - b = other.unify(); - if (a.unit.compare(b.unit) !== 0) { - return -1; - } - } - aValue = a.value; - bValue = b.value; - - if (bValue > aValue) { - return -1; - } else if (bValue < aValue) { - return 1; - } else { - return 0; - } - } else { - return -1; - } - }, - - unify: function () { - return this.convertTo({ length: 'px', duration: 's', angle: 'rad' }); - }, - - convertTo: function (conversions) { - var value = this.value, unit = this.unit.clone(), - i, groupName, group, targetUnit, derivedConversions = {}, applyUnit; - - if (typeof conversions === 'string') { - for(i in tree.UnitConversions) { - if (tree.UnitConversions[i].hasOwnProperty(conversions)) { - derivedConversions = {}; - derivedConversions[i] = conversions; - } - } - conversions = derivedConversions; - } - applyUnit = function (atomicUnit, denominator) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit)) { - if (denominator) { - value = value / (group[atomicUnit] / group[targetUnit]); - } else { - value = value * (group[atomicUnit] / group[targetUnit]); - } - - return targetUnit; - } - - return atomicUnit; - }; - - for (groupName in conversions) { - if (conversions.hasOwnProperty(groupName)) { - targetUnit = conversions[groupName]; - group = tree.UnitConversions[groupName]; - - unit.map(applyUnit); - } - } - - unit.cancel(); - - return new(tree.Dimension)(value, unit); - } -}; - -// http://www.w3.org/TR/css3-values/#absolute-lengths -tree.UnitConversions = { - length: { - 'm': 1, - 'cm': 0.01, - 'mm': 0.001, - 'in': 0.0254, - 'px': 0.0254 / 96, - 'pt': 0.0254 / 72, - 'pc': 0.0254 / 72 * 12 - }, - duration: { - 's': 1, - 'ms': 0.001 - }, - angle: { - 'rad': 1/(2*Math.PI), - 'deg': 1/360, - 'grad': 1/400, - 'turn': 1 - } -}; - -tree.Unit = function (numerator, denominator, backupUnit) { - this.numerator = numerator ? numerator.slice(0).sort() : []; - this.denominator = denominator ? denominator.slice(0).sort() : []; - this.backupUnit = backupUnit; -}; - -tree.Unit.prototype = { - type: "Unit", - clone: function () { - return new tree.Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit); - }, - genCSS: function (env, output) { - if (this.numerator.length >= 1) { - output.add(this.numerator[0]); - } else - if (this.denominator.length >= 1) { - output.add(this.denominator[0]); - } else - if ((!env || !env.strictUnits) && this.backupUnit) { - output.add(this.backupUnit); - } - }, - toCSS: tree.toCSS, - - toString: function () { - var i, returnStr = this.numerator.join("*"); - for (i = 0; i < this.denominator.length; i++) { - returnStr += "/" + this.denominator[i]; - } - return returnStr; - }, - - compare: function (other) { - return this.is(other.toString()) ? 0 : -1; - }, - - is: function (unitString) { - return this.toString() === unitString; - }, - - isLength: function () { - return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/)); - }, - - isEmpty: function () { - return this.numerator.length === 0 && this.denominator.length === 0; - }, - - isSingular: function() { - return this.numerator.length <= 1 && this.denominator.length === 0; - }, - - map: function(callback) { - var i; - - for (i = 0; i < this.numerator.length; i++) { - this.numerator[i] = callback(this.numerator[i], false); - } - - for (i = 0; i < this.denominator.length; i++) { - this.denominator[i] = callback(this.denominator[i], true); - } - }, - - usedUnits: function() { - var group, result = {}, mapUnit; - - mapUnit = function (atomicUnit) { - /*jshint loopfunc:true */ - if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { - result[groupName] = atomicUnit; - } - - return atomicUnit; - }; - - for (var groupName in tree.UnitConversions) { - if (tree.UnitConversions.hasOwnProperty(groupName)) { - group = tree.UnitConversions[groupName]; - - this.map(mapUnit); - } - } - - return result; - }, - - cancel: function () { - var counter = {}, atomicUnit, i, backup; - - for (i = 0; i < this.numerator.length; i++) { - atomicUnit = this.numerator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; - } - - for (i = 0; i < this.denominator.length; i++) { - atomicUnit = this.denominator[i]; - if (!backup) { - backup = atomicUnit; - } - counter[atomicUnit] = (counter[atomicUnit] || 0) - 1; - } - - this.numerator = []; - this.denominator = []; - - for (atomicUnit in counter) { - if (counter.hasOwnProperty(atomicUnit)) { - var count = counter[atomicUnit]; - - if (count > 0) { - for (i = 0; i < count; i++) { - this.numerator.push(atomicUnit); - } - } else if (count < 0) { - for (i = 0; i < -count; i++) { - this.denominator.push(atomicUnit); - } - } - } - } - - if (this.numerator.length === 0 && this.denominator.length === 0 && backup) { - this.backupUnit = backup; - } - - this.numerator.sort(); - this.denominator.sort(); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Directive = function (name, value, rules, index, currentFileInfo, debugInfo) { - this.name = name; - this.value = value; - if (rules) { - this.rules = rules; - this.rules.allowImports = true; - } - this.index = index; - this.currentFileInfo = currentFileInfo; - this.debugInfo = debugInfo; -}; - -tree.Directive.prototype = { - type: "Directive", - accept: function (visitor) { - var value = this.value, rules = this.rules; - if (rules) { - rules = visitor.visit(rules); - } - if (value) { - value = visitor.visit(value); - } - }, - isRulesetLike: function() { - return "@charset" !== this.name; - }, - genCSS: function (env, output) { - var value = this.value, rules = this.rules; - output.add(this.name, this.currentFileInfo, this.index); - if (value) { - output.add(' '); - value.genCSS(env, output); - } - if (rules) { - tree.outputRuleset(env, output, [rules]); - } else { - output.add(';'); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var value = this.value, rules = this.rules; - if (value) { - value = value.eval(env); - } - if (rules) { - rules = rules.eval(env); - rules.root = true; - } - return new(tree.Directive)(this.name, value, rules, - this.index, this.currentFileInfo, this.debugInfo); - }, - variable: function (name) { if (this.rules) return tree.Ruleset.prototype.variable.call(this.rules, name); }, - find: function () { if (this.rules) return tree.Ruleset.prototype.find.apply(this.rules, arguments); }, - rulesets: function () { if (this.rules) return tree.Ruleset.prototype.rulesets.apply(this.rules); }, - markReferenced: function () { - var i, rules; - this.isReferenced = true; - if (this.rules) { - rules = this.rules.rules; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Element = function (combinator, value, index, currentFileInfo) { - this.combinator = combinator instanceof tree.Combinator ? - combinator : new(tree.Combinator)(combinator); - - if (typeof(value) === 'string') { - this.value = value.trim(); - } else if (value) { - this.value = value; - } else { - this.value = ""; - } - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Element.prototype = { - type: "Element", - accept: function (visitor) { - var value = this.value; - this.combinator = visitor.visit(this.combinator); - if (typeof value === "object") { - this.value = visitor.visit(value); - } - }, - eval: function (env) { - return new(tree.Element)(this.combinator, - this.value.eval ? this.value.eval(env) : this.value, - this.index, - this.currentFileInfo); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env), this.currentFileInfo, this.index); - }, - toCSS: function (env) { - var value = (this.value.toCSS ? this.value.toCSS(env) : this.value); - if (value === '' && this.combinator.value.charAt(0) === '&') { - return ''; - } else { - return this.combinator.toCSS(env || {}) + value; - } - } -}; - -tree.Attribute = function (key, op, value) { - this.key = key; - this.op = op; - this.value = value; -}; -tree.Attribute.prototype = { - type: "Attribute", - eval: function (env) { - return new(tree.Attribute)(this.key.eval ? this.key.eval(env) : this.key, - this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value); - }, - genCSS: function (env, output) { - output.add(this.toCSS(env)); - }, - toCSS: function (env) { - var value = this.key.toCSS ? this.key.toCSS(env) : this.key; - - if (this.op) { - value += this.op; - value += (this.value.toCSS ? this.value.toCSS(env) : this.value); - } - - return '[' + value + ']'; - } -}; - -tree.Combinator = function (value) { - if (value === ' ') { - this.value = ' '; - } else { - this.value = value ? value.trim() : ""; - } -}; -tree.Combinator.prototype = { - type: "Combinator", - _outputMap: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : ' + ', - '~' : ' ~ ', - '>' : ' > ', - '|' : '|', - '^' : ' ^ ', - '^^' : ' ^^ ' - }, - _outputMapCompressed: { - '' : '', - ' ' : ' ', - ':' : ' :', - '+' : '+', - '~' : '~', - '>' : '>', - '|' : '|', - '^' : '^', - '^^' : '^^' - }, - genCSS: function (env, output) { - output.add((env.compress ? this._outputMapCompressed : this._outputMap)[this.value]); - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Expression = function (value) { this.value = value; }; -tree.Expression.prototype = { - type: "Expression", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - var returnValue, - inParenthesis = this.parens && !this.parensInOp, - doubleParen = false; - if (inParenthesis) { - env.inParenthesis(); - } - if (this.value.length > 1) { - returnValue = new(tree.Expression)(this.value.map(function (e) { - return e.eval(env); - })); - } else if (this.value.length === 1) { - if (this.value[0].parens && !this.value[0].parensInOp) { - doubleParen = true; - } - returnValue = this.value[0].eval(env); - } else { - returnValue = this; - } - if (inParenthesis) { - env.outOfParenthesis(); - } - if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) { - returnValue = new(tree.Paren)(returnValue); - } - return returnValue; - }, - genCSS: function (env, output) { - for(var i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i + 1 < this.value.length) { - output.add(" "); - } - } - }, - toCSS: tree.toCSS, - throwAwayComments: function () { - this.value = this.value.filter(function(v) { - return !(v instanceof tree.Comment); - }); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Extend = function Extend(selector, option, index) { - this.selector = selector; - this.option = option; - this.index = index; - this.object_id = tree.Extend.next_id++; - this.parent_ids = [this.object_id]; - - switch(option) { - case "all": - this.allowBefore = true; - this.allowAfter = true; - break; - default: - this.allowBefore = false; - this.allowAfter = false; - break; - } -}; -tree.Extend.next_id = 0; - -tree.Extend.prototype = { - type: "Extend", - accept: function (visitor) { - this.selector = visitor.visit(this.selector); - }, - eval: function (env) { - return new(tree.Extend)(this.selector.eval(env), this.option, this.index); - }, - clone: function (env) { - return new(tree.Extend)(this.selector, this.option, this.index); - }, - findSelfSelectors: function (selectors) { - var selfElements = [], - i, - selectorElements; - - for(i = 0; i < selectors.length; i++) { - selectorElements = selectors[i].elements; - // duplicate the logic in genCSS function inside the selector node. - // future TODO - move both logics into the selector joiner visitor - if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") { - selectorElements[0].combinator.value = ' '; - } - selfElements = selfElements.concat(selectors[i].elements); - } - - this.selfSelectors = [{ elements: selfElements }]; - } -}; - -})(require('../tree')); - -(function (tree) { -// -// CSS @import node -// -// The general strategy here is that we don't want to wait -// for the parsing to be completed, before we start importing -// the file. That's because in the context of a browser, -// most of the time will be spent waiting for the server to respond. -// -// On creation, we push the import path to our import queue, though -// `import,push`, we also pass it a callback, which it'll call once -// the file has been fetched, and parsed. -// -tree.Import = function (path, features, options, index, currentFileInfo) { - this.options = options; - this.index = index; - this.path = path; - this.features = features; - this.currentFileInfo = currentFileInfo; - - if (this.options.less !== undefined || this.options.inline) { - this.css = !this.options.less || this.options.inline; - } else { - var pathValue = this.getPath(); - if (pathValue && /css([\?;].*)?$/.test(pathValue)) { - this.css = true; - } - } -}; - -// -// The actual import node doesn't return anything, when converted to CSS. -// The reason is that it's used at the evaluation stage, so that the rules -// it imports can be treated like any other rules. -// -// In `eval`, we make sure all Import nodes get evaluated, recursively, so -// we end up with a flat structure, which can easily be imported in the parent -// ruleset. -// -tree.Import.prototype = { - type: "Import", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - this.path = visitor.visit(this.path); - if (!this.options.inline && this.root) { - this.root = visitor.visit(this.root); - } - }, - genCSS: function (env, output) { - if (this.css) { - output.add("@import ", this.currentFileInfo, this.index); - this.path.genCSS(env, output); - if (this.features) { - output.add(" "); - this.features.genCSS(env, output); - } - output.add(';'); - } - }, - toCSS: tree.toCSS, - getPath: function () { - if (this.path instanceof tree.Quoted) { - var path = this.path.value; - return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less'; - } else if (this.path instanceof tree.URL) { - return this.path.value.value; - } - return null; - }, - evalForImport: function (env) { - return new(tree.Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo); - }, - evalPath: function (env) { - var path = this.path.eval(env); - var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - - if (!(path instanceof tree.URL)) { - if (rootpath) { - var pathValue = path.value; - // Add the base path if the import is relative - if (pathValue && env.isPathRelative(pathValue)) { - path.value = rootpath +pathValue; - } - } - path.value = env.normalizePath(path.value); - } - - return path; - }, - eval: function (env) { - var ruleset, features = this.features && this.features.eval(env); - - if (this.skip) { - if (typeof this.skip === "function") { - this.skip = this.skip(); - } - if (this.skip) { - return []; - } - } - - if (this.options.inline) { - //todo needs to reference css file not import - var contents = new(tree.Anonymous)(this.root, 0, {filename: this.importedFilename}, true, true); - return this.features ? new(tree.Media)([contents], this.features.value) : [contents]; - } else if (this.css) { - var newImport = new(tree.Import)(this.evalPath(env), features, this.options, this.index); - if (!newImport.css && this.error) { - throw this.error; - } - return newImport; - } else { - ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); - - ruleset.evalImports(env); - - return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; - } - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.JavaScript = function (string, index, escaped) { - this.escaped = escaped; - this.expression = string; - this.index = index; -}; -tree.JavaScript.prototype = { - type: "JavaScript", - eval: function (env) { - var result, - that = this, - context = {}; - - var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { - return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); - }); - - try { - expression = new(Function)('return (' + expression + ')'); - } catch (e) { - throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" , - index: this.index }; - } - - var variables = env.frames[0].variables(); - for (var k in variables) { - if (variables.hasOwnProperty(k)) { - /*jshint loopfunc:true */ - context[k.slice(1)] = { - value: variables[k].value, - toJS: function () { - return this.value.eval(env).toCSS(); - } - }; - } - } - - try { - result = expression.call(context); - } catch (e) { - throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message.replace(/["]/g, "'") + "'" , - index: this.index }; - } - if (typeof(result) === 'number') { - return new(tree.Dimension)(result); - } else if (typeof(result) === 'string') { - return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); - } else if (Array.isArray(result)) { - return new(tree.Anonymous)(result.join(', ')); - } else { - return new(tree.Anonymous)(result); - } - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Keyword = function (value) { this.value = value; }; -tree.Keyword.prototype = { - type: "Keyword", - eval: function () { return this; }, - genCSS: function (env, output) { - if (this.value === '%') { throw { type: "Syntax", message: "Invalid % without number" }; } - output.add(this.value); - }, - toCSS: tree.toCSS, - compare: function (other) { - if (other instanceof tree.Keyword) { - return other.value === this.value ? 0 : 1; - } else { - return -1; - } - } -}; - -tree.True = new(tree.Keyword)('true'); -tree.False = new(tree.Keyword)('false'); - -})(require('../tree')); - -(function (tree) { - -tree.Media = function (value, features, index, currentFileInfo) { - this.index = index; - this.currentFileInfo = currentFileInfo; - - var selectors = this.emptySelectors(); - - this.features = new(tree.Value)(features); - this.rules = [new(tree.Ruleset)(selectors, value)]; - this.rules[0].allowImports = true; -}; -tree.Media.prototype = { - type: "Media", - accept: function (visitor) { - if (this.features) { - this.features = visitor.visit(this.features); - } - if (this.rules) { - this.rules = visitor.visitArray(this.rules); - } - }, - genCSS: function (env, output) { - output.add('@media ', this.currentFileInfo, this.index); - this.features.genCSS(env, output); - tree.outputRuleset(env, output, this.rules); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (!env.mediaBlocks) { - env.mediaBlocks = []; - env.mediaPath = []; - } - - var media = new(tree.Media)(null, [], this.index, this.currentFileInfo); - if(this.debugInfo) { - this.rules[0].debugInfo = this.debugInfo; - media.debugInfo = this.debugInfo; - } - var strictMathBypass = false; - if (!env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - media.features = this.features.eval(env); - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - - env.mediaPath.push(media); - env.mediaBlocks.push(media); - - env.frames.unshift(this.rules[0]); - media.rules = [this.rules[0].eval(env)]; - env.frames.shift(); - - env.mediaPath.pop(); - - return env.mediaPath.length === 0 ? media.evalTop(env) : - media.evalNested(env); - }, - variable: function (name) { return tree.Ruleset.prototype.variable.call(this.rules[0], name); }, - find: function () { return tree.Ruleset.prototype.find.apply(this.rules[0], arguments); }, - rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.rules[0]); }, - emptySelectors: function() { - var el = new(tree.Element)('', '&', this.index, this.currentFileInfo), - sels = [new(tree.Selector)([el], null, null, this.index, this.currentFileInfo)]; - sels[0].mediaEmpty = true; - return sels; - }, - markReferenced: function () { - var i, rules = this.rules[0].rules; - this.rules[0].markReferenced(); - this.isReferenced = true; - for (i = 0; i < rules.length; i++) { - if (rules[i].markReferenced) { - rules[i].markReferenced(); - } - } - }, - - evalTop: function (env) { - var result = this; - - // Render all dependent Media blocks. - if (env.mediaBlocks.length > 1) { - var selectors = this.emptySelectors(); - result = new(tree.Ruleset)(selectors, env.mediaBlocks); - result.multiMedia = true; - } - - delete env.mediaBlocks; - delete env.mediaPath; - - return result; - }, - evalNested: function (env) { - var i, value, - path = env.mediaPath.concat([this]); - - // Extract the media-query conditions separated with `,` (OR). - for (i = 0; i < path.length; i++) { - value = path[i].features instanceof tree.Value ? - path[i].features.value : path[i].features; - path[i] = Array.isArray(value) ? value : [value]; - } - - // Trace all permutations to generate the resulting media-query. - // - // (a, b and c) with nested (d, e) -> - // a and d - // a and e - // b and c and d - // b and c and e - this.features = new(tree.Value)(this.permute(path).map(function (path) { - path = path.map(function (fragment) { - return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); - }); - - for(i = path.length - 1; i > 0; i--) { - path.splice(i, 0, new(tree.Anonymous)("and")); - } - - return new(tree.Expression)(path); - })); - - // Fake a tree-node that doesn't output anything. - return new(tree.Ruleset)([], []); - }, - permute: function (arr) { - if (arr.length === 0) { - return []; - } else if (arr.length === 1) { - return arr[0]; - } else { - var result = []; - var rest = this.permute(arr.slice(1)); - for (var i = 0; i < rest.length; i++) { - for (var j = 0; j < arr[0].length; j++) { - result.push([arr[0][j]].concat(rest[i])); - } - } - return result; - } - }, - bubbleSelectors: function (selectors) { - if (!selectors) - return; - this.rules = [new(tree.Ruleset)(selectors.slice(0), [this.rules[0]])]; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.mixin = {}; -tree.mixin.Call = function (elements, args, index, currentFileInfo, important) { - this.selector = new(tree.Selector)(elements); - this.arguments = (args && args.length) ? args : null; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.important = important; -}; -tree.mixin.Call.prototype = { - type: "MixinCall", - accept: function (visitor) { - if (this.selector) { - this.selector = visitor.visit(this.selector); - } - if (this.arguments) { - this.arguments = visitor.visitArray(this.arguments); - } - }, - eval: function (env) { - var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule, - candidates = [], candidate, conditionResult = [], defaultFunc = tree.defaultFunc, - defaultResult, defNone = 0, defTrue = 1, defFalse = 2, count, originalRuleset; - - args = this.arguments && this.arguments.map(function (a) { - return { name: a.name, value: a.value.eval(env) }; - }); - - for (i = 0; i < env.frames.length; i++) { - if ((mixins = env.frames[i].find(this.selector)).length > 0) { - isOneFound = true; - - // To make `default()` function independent of definition order we have two "subpasses" here. - // At first we evaluate each guard *twice* (with `default() == true` and `default() == false`), - // and build candidate list with corresponding flags. Then, when we know all possible matches, - // we make a final decision. - - for (m = 0; m < mixins.length; m++) { - mixin = mixins[m]; - isRecursive = false; - for(f = 0; f < env.frames.length; f++) { - if ((!(mixin instanceof tree.mixin.Definition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) { - isRecursive = true; - break; - } - } - if (isRecursive) { - continue; - } - - if (mixin.matchArgs(args, env)) { - candidate = {mixin: mixin, group: defNone}; - - if (mixin.matchCondition) { - for (f = 0; f < 2; f++) { - defaultFunc.value(f); - conditionResult[f] = mixin.matchCondition(args, env); - } - if (conditionResult[0] || conditionResult[1]) { - if (conditionResult[0] != conditionResult[1]) { - candidate.group = conditionResult[1] ? - defTrue : defFalse; - } - - candidates.push(candidate); - } - } - else { - candidates.push(candidate); - } - - match = true; - } - } - - defaultFunc.reset(); - - count = [0, 0, 0]; - for (m = 0; m < candidates.length; m++) { - count[candidates[m].group]++; - } - - if (count[defNone] > 0) { - defaultResult = defFalse; - } else { - defaultResult = defTrue; - if ((count[defTrue] + count[defFalse]) > 1) { - throw { type: 'Runtime', - message: 'Ambiguous use of `default()` found when matching for `' - + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } - } - - for (m = 0; m < candidates.length; m++) { - candidate = candidates[m].group; - if ((candidate === defNone) || (candidate === defaultResult)) { - try { - mixin = candidates[m].mixin; - if (!(mixin instanceof tree.mixin.Definition)) { - originalRuleset = mixin.originalRuleset || mixin; - mixin = new tree.mixin.Definition("", [], mixin.rules, null, false); - mixin.originalRuleset = originalRuleset; - } - Array.prototype.push.apply( - rules, mixin.evalCall(env, args, this.important).rules); - } catch (e) { - throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack }; - } - } - } - - if (match) { - if (!this.currentFileInfo || !this.currentFileInfo.reference) { - for (i = 0; i < rules.length; i++) { - rule = rules[i]; - if (rule.markReferenced) { - rule.markReferenced(); - } - } - } - return rules; - } - } - } - if (isOneFound) { - throw { type: 'Runtime', - message: 'No matching definition was found for `' + this.format(args) + '`', - index: this.index, filename: this.currentFileInfo.filename }; - } else { - throw { type: 'Name', - message: this.selector.toCSS().trim() + " is undefined", - index: this.index, filename: this.currentFileInfo.filename }; - } - }, - format: function (args) { - return this.selector.toCSS().trim() + '(' + - (args ? args.map(function (a) { - var argValue = ""; - if (a.name) { - argValue += a.name + ":"; - } - if (a.value.toCSS) { - argValue += a.value.toCSS(); - } else { - argValue += "???"; - } - return argValue; - }).join(', ') : "") + ")"; - } -}; - -tree.mixin.Definition = function (name, params, rules, condition, variadic, frames) { - this.name = name; - this.selectors = [new(tree.Selector)([new(tree.Element)(null, name, this.index, this.currentFileInfo)])]; - this.params = params; - this.condition = condition; - this.variadic = variadic; - this.arity = params.length; - this.rules = rules; - this._lookups = {}; - this.required = params.reduce(function (count, p) { - if (!p.name || (p.name && !p.value)) { return count + 1; } - else { return count; } - }, 0); - this.parent = tree.Ruleset.prototype; - this.frames = frames; -}; -tree.mixin.Definition.prototype = { - type: "MixinDefinition", - accept: function (visitor) { - if (this.params && this.params.length) { - this.params = visitor.visitArray(this.params); - } - this.rules = visitor.visitArray(this.rules); - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - variable: function (name) { return this.parent.variable.call(this, name); }, - variables: function () { return this.parent.variables.call(this); }, - find: function () { return this.parent.find.apply(this, arguments); }, - rulesets: function () { return this.parent.rulesets.apply(this); }, - - evalParams: function (env, mixinEnv, args, evaldArguments) { - /*jshint boss:true */ - var frame = new(tree.Ruleset)(null, null), - varargs, arg, - params = this.params.slice(0), - i, j, val, name, isNamedFound, argIndex, argsLength = 0; - - mixinEnv = new tree.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames)); - - if (args) { - args = args.slice(0); - argsLength = args.length; - - for(i = 0; i < argsLength; i++) { - arg = args[i]; - if (name = (arg && arg.name)) { - isNamedFound = false; - for(j = 0; j < params.length; j++) { - if (!evaldArguments[j] && name === params[j].name) { - evaldArguments[j] = arg.value.eval(env); - frame.prependRule(new(tree.Rule)(name, arg.value.eval(env))); - isNamedFound = true; - break; - } - } - if (isNamedFound) { - args.splice(i, 1); - i--; - continue; - } else { - throw { type: 'Runtime', message: "Named argument for " + this.name + - ' ' + args[i].name + ' not found' }; - } - } - } - } - argIndex = 0; - for (i = 0; i < params.length; i++) { - if (evaldArguments[i]) { continue; } - - arg = args && args[argIndex]; - - if (name = params[i].name) { - if (params[i].variadic) { - varargs = []; - for (j = argIndex; j < argsLength; j++) { - varargs.push(args[j].value.eval(env)); - } - frame.prependRule(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); - } else { - val = arg && arg.value; - if (val) { - val = val.eval(env); - } else if (params[i].value) { - val = params[i].value.eval(mixinEnv); - frame.resetCache(); - } else { - throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + - ' (' + argsLength + ' for ' + this.arity + ')' }; - } - - frame.prependRule(new(tree.Rule)(name, val)); - evaldArguments[i] = val; - } - } - - if (params[i].variadic && args) { - for (j = argIndex; j < argsLength; j++) { - evaldArguments[j] = args[j].value.eval(env); - } - } - argIndex++; - } - - return frame; - }, - eval: function (env) { - return new tree.mixin.Definition(this.name, this.params, this.rules, this.condition, this.variadic, this.frames || env.frames.slice(0)); - }, - evalCall: function (env, args, important) { - var _arguments = [], - mixinFrames = this.frames ? this.frames.concat(env.frames) : env.frames, - frame = this.evalParams(env, new(tree.evalEnv)(env, mixinFrames), args, _arguments), - rules, ruleset; - - frame.prependRule(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); - - rules = this.rules.slice(0); - - ruleset = new(tree.Ruleset)(null, rules); - ruleset.originalRuleset = this; - ruleset = ruleset.eval(new(tree.evalEnv)(env, [this, frame].concat(mixinFrames))); - if (important) { - ruleset = this.parent.makeImportant.apply(ruleset); - } - return ruleset; - }, - matchCondition: function (args, env) { - if (this.condition && !this.condition.eval( - new(tree.evalEnv)(env, - [this.evalParams(env, new(tree.evalEnv)(env, this.frames ? this.frames.concat(env.frames) : env.frames), args, [])] // the parameter variables - .concat(this.frames) // the parent namespace/mixin frames - .concat(env.frames)))) { // the current environment frames - return false; - } - return true; - }, - matchArgs: function (args, env) { - var argsLength = (args && args.length) || 0, len; - - if (! this.variadic) { - if (argsLength < this.required) { return false; } - if (argsLength > this.params.length) { return false; } - } else { - if (argsLength < (this.required - 1)) { return false; } - } - - len = Math.min(argsLength, this.arity); - - for (var i = 0; i < len; i++) { - if (!this.params[i].name && !this.params[i].variadic) { - if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { - return false; - } - } - } - return true; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Negative = function (node) { - this.value = node; -}; -tree.Negative.prototype = { - type: "Negative", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('-'); - this.value.genCSS(env, output); - }, - toCSS: tree.toCSS, - eval: function (env) { - if (env.isMathOn()) { - return (new(tree.Operation)('*', [new(tree.Dimension)(-1), this.value])).eval(env); - } - return new(tree.Negative)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Operation = function (op, operands, isSpaced) { - this.op = op.trim(); - this.operands = operands; - this.isSpaced = isSpaced; -}; -tree.Operation.prototype = { - type: "Operation", - accept: function (visitor) { - this.operands = visitor.visit(this.operands); - }, - eval: function (env) { - var a = this.operands[0].eval(env), - b = this.operands[1].eval(env); - - if (env.isMathOn()) { - if (a instanceof tree.Dimension && b instanceof tree.Color) { - a = a.toColor(); - } - if (b instanceof tree.Dimension && a instanceof tree.Color) { - b = b.toColor(); - } - if (!a.operate) { - throw { type: "Operation", - message: "Operation on an invalid type" }; - } - - return a.operate(env, this.op, b); - } else { - return new(tree.Operation)(this.op, [a, b], this.isSpaced); - } - }, - genCSS: function (env, output) { - this.operands[0].genCSS(env, output); - if (this.isSpaced) { - output.add(" "); - } - output.add(this.op); - if (this.isSpaced) { - output.add(" "); - } - this.operands[1].genCSS(env, output); - }, - toCSS: tree.toCSS -}; - -tree.operate = function (env, op, a, b) { - switch (op) { - case '+': return a + b; - case '-': return a - b; - case '*': return a * b; - case '/': return a / b; - } -}; - -})(require('../tree')); - - -(function (tree) { - -tree.Paren = function (node) { - this.value = node; -}; -tree.Paren.prototype = { - type: "Paren", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add('('); - this.value.genCSS(env, output); - output.add(')'); - }, - toCSS: tree.toCSS, - eval: function (env) { - return new(tree.Paren)(this.value.eval(env)); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Quoted = function (str, content, escaped, index, currentFileInfo) { - this.escaped = escaped; - this.value = content || ''; - this.quote = str.charAt(0); - this.index = index; - this.currentFileInfo = currentFileInfo; -}; -tree.Quoted.prototype = { - type: "Quoted", - genCSS: function (env, output) { - if (!this.escaped) { - output.add(this.quote, this.currentFileInfo, this.index); - } - output.add(this.value); - if (!this.escaped) { - output.add(this.quote); - } - }, - toCSS: tree.toCSS, - eval: function (env) { - var that = this; - var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { - return new(tree.JavaScript)(exp, that.index, true).eval(env).value; - }).replace(/@\{([\w-]+)\}/g, function (_, name) { - var v = new(tree.Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true); - return (v instanceof tree.Quoted) ? v.value : v.toCSS(); - }); - return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo); - }, - compare: function (x) { - if (!x.toCSS) { - return -1; - } - - var left, right; - - // when comparing quoted strings allow the quote to differ - if (x.type === "Quoted" && !this.escaped && !x.escaped) { - left = x.value; - right = this.value; - } else { - left = this.toCSS(); - right = x.toCSS(); - } - - if (left === right) { - return 0; - } - - return left < right ? -1 : 1; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Rule = function (name, value, important, merge, index, currentFileInfo, inline) { - this.name = name; - this.value = (value instanceof tree.Value || value instanceof tree.Ruleset) ? value : new(tree.Value)([value]); - this.important = important ? ' ' + important.trim() : ''; - this.merge = merge; - this.index = index; - this.currentFileInfo = currentFileInfo; - this.inline = inline || false; - this.variable = name.charAt && (name.charAt(0) === '@'); -}; - -tree.Rule.prototype = { - type: "Rule", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index); - try { - this.value.genCSS(env, output); - } - catch(e) { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - throw e; - } - output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index); - }, - toCSS: tree.toCSS, - eval: function (env) { - var strictMathBypass = false, name = this.name, evaldValue; - if (typeof name !== "string") { - // expand 'primitive' name directly to get - // things faster (~10% for benchmark.less): - name = (name.length === 1) - && (name[0] instanceof tree.Keyword) - ? name[0].value : evalName(env, name); - } - if (name === "font" && !env.strictMath) { - strictMathBypass = true; - env.strictMath = true; - } - try { - evaldValue = this.value.eval(env); - - if (!this.variable && evaldValue.type === "DetachedRuleset") { - throw { message: "Rulesets cannot be evaluated on a property.", - index: this.index, filename: this.currentFileInfo.filename }; - } - - return new(tree.Rule)(name, - evaldValue, - this.important, - this.merge, - this.index, this.currentFileInfo, this.inline); - } - catch(e) { - if (typeof e.index !== 'number') { - e.index = this.index; - e.filename = this.currentFileInfo.filename; - } - throw e; - } - finally { - if (strictMathBypass) { - env.strictMath = false; - } - } - }, - makeImportant: function () { - return new(tree.Rule)(this.name, - this.value, - "!important", - this.merge, - this.index, this.currentFileInfo, this.inline); - } -}; - -function evalName(env, name) { - var value = "", i, n = name.length, - output = {add: function (s) {value += s;}}; - for (i = 0; i < n; i++) { - name[i].eval(env).genCSS(env, output); - } - return value; -} - -})(require('../tree')); - -(function (tree) { - -tree.RulesetCall = function (variable) { - this.variable = variable; -}; -tree.RulesetCall.prototype = { - type: "RulesetCall", - accept: function (visitor) { - }, - eval: function (env) { - var detachedRuleset = new(tree.Variable)(this.variable).eval(env); - return detachedRuleset.callEval(env); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Ruleset = function (selectors, rules, strictImports) { - this.selectors = selectors; - this.rules = rules; - this._lookups = {}; - this.strictImports = strictImports; -}; -tree.Ruleset.prototype = { - type: "Ruleset", - accept: function (visitor) { - if (this.paths) { - visitor.visitArray(this.paths, true); - } else if (this.selectors) { - this.selectors = visitor.visitArray(this.selectors); - } - if (this.rules && this.rules.length) { - this.rules = visitor.visitArray(this.rules); - } - }, - eval: function (env) { - var thisSelectors = this.selectors, selectors, - selCnt, selector, i, defaultFunc = tree.defaultFunc, hasOnePassingSelector = false; - - if (thisSelectors && (selCnt = thisSelectors.length)) { - selectors = []; - defaultFunc.error({ - type: "Syntax", - message: "it is currently only allowed in parametric mixin guards," - }); - for (i = 0; i < selCnt; i++) { - selector = thisSelectors[i].eval(env); - selectors.push(selector); - if (selector.evaldCondition) { - hasOnePassingSelector = true; - } - } - defaultFunc.reset(); - } else { - hasOnePassingSelector = true; - } - - var rules = this.rules ? this.rules.slice(0) : null, - ruleset = new(tree.Ruleset)(selectors, rules, this.strictImports), - rule, subRule; - - ruleset.originalRuleset = this; - ruleset.root = this.root; - ruleset.firstRoot = this.firstRoot; - ruleset.allowImports = this.allowImports; - - if(this.debugInfo) { - ruleset.debugInfo = this.debugInfo; - } - - if (!hasOnePassingSelector) { - rules.length = 0; - } - - // push the current ruleset to the frames stack - var envFrames = env.frames; - envFrames.unshift(ruleset); - - // currrent selectors - var envSelectors = env.selectors; - if (!envSelectors) { - env.selectors = envSelectors = []; - } - envSelectors.unshift(this.selectors); - - // Evaluate imports - if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { - ruleset.evalImports(env); - } - - // Store the frames around mixin definitions, - // so they can be evaluated like closures when the time comes. - var rsRules = ruleset.rules, rsRuleCnt = rsRules ? rsRules.length : 0; - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Definition || rsRules[i] instanceof tree.DetachedRuleset) { - rsRules[i] = rsRules[i].eval(env); - } - } - - var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0; - - // Evaluate mixin calls. - for (i = 0; i < rsRuleCnt; i++) { - if (rsRules[i] instanceof tree.mixin.Call) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope if the variable is - // already there. consider returning false here - // but we need a way to "return" variable from mixins - return !(ruleset.variable(r.name)); - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } else if (rsRules[i] instanceof tree.RulesetCall) { - /*jshint loopfunc:true */ - rules = rsRules[i].eval(env).rules.filter(function(r) { - if ((r instanceof tree.Rule) && r.variable) { - // do not pollute the scope at all - return false; - } - return true; - }); - rsRules.splice.apply(rsRules, [i, 1].concat(rules)); - rsRuleCnt += rules.length - 1; - i += rules.length-1; - ruleset.resetCache(); - } - } - - // Evaluate everything else - for (i = 0; i < rsRules.length; i++) { - rule = rsRules[i]; - if (! (rule instanceof tree.mixin.Definition || rule instanceof tree.DetachedRuleset)) { - rsRules[i] = rule = rule.eval ? rule.eval(env) : rule; - } - } - - // Evaluate everything else - for (i = 0; i < rsRules.length; i++) { - rule = rsRules[i]; - // for rulesets, check if it is a css guard and can be removed - if (rule instanceof tree.Ruleset && rule.selectors && rule.selectors.length === 1) { - // check if it can be folded in (e.g. & where) - if (rule.selectors[0].isJustParentSelector()) { - rsRules.splice(i--, 1); - - for(var j = 0; j < rule.rules.length; j++) { - subRule = rule.rules[j]; - if (!(subRule instanceof tree.Rule) || !subRule.variable) { - rsRules.splice(++i, 0, subRule); - } - } - } - } - } - - // Pop the stack - envFrames.shift(); - envSelectors.shift(); - - if (env.mediaBlocks) { - for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) { - env.mediaBlocks[i].bubbleSelectors(selectors); - } - } - - return ruleset; - }, - evalImports: function(env) { - var rules = this.rules, i, importRules; - if (!rules) { return; } - - for (i = 0; i < rules.length; i++) { - if (rules[i] instanceof tree.Import) { - importRules = rules[i].eval(env); - if (importRules && importRules.length) { - rules.splice.apply(rules, [i, 1].concat(importRules)); - i+= importRules.length-1; - } else { - rules.splice(i, 1, importRules); - } - this.resetCache(); - } - } - }, - makeImportant: function() { - return new tree.Ruleset(this.selectors, this.rules.map(function (r) { - if (r.makeImportant) { - return r.makeImportant(); - } else { - return r; - } - }), this.strictImports); - }, - matchArgs: function (args) { - return !args || args.length === 0; - }, - // lets you call a css selector with a guard - matchCondition: function (args, env) { - var lastSelector = this.selectors[this.selectors.length-1]; - if (!lastSelector.evaldCondition) { - return false; - } - if (lastSelector.condition && - !lastSelector.condition.eval( - new(tree.evalEnv)(env, - env.frames))) { - return false; - } - return true; - }, - resetCache: function () { - this._rulesets = null; - this._variables = null; - this._lookups = {}; - }, - variables: function () { - if (!this._variables) { - this._variables = !this.rules ? {} : this.rules.reduce(function (hash, r) { - if (r instanceof tree.Rule && r.variable === true) { - hash[r.name] = r; - } - return hash; - }, {}); - } - return this._variables; - }, - variable: function (name) { - return this.variables()[name]; - }, - rulesets: function () { - if (!this.rules) { return null; } - - var _Ruleset = tree.Ruleset, _MixinDefinition = tree.mixin.Definition, - filtRules = [], rules = this.rules, cnt = rules.length, - i, rule; - - for (i = 0; i < cnt; i++) { - rule = rules[i]; - if ((rule instanceof _Ruleset) || (rule instanceof _MixinDefinition)) { - filtRules.push(rule); - } - } - - return filtRules; - }, - prependRule: function (rule) { - var rules = this.rules; - if (rules) { rules.unshift(rule); } else { this.rules = [ rule ]; } - }, - find: function (selector, self) { - self = self || this; - var rules = [], match, - key = selector.toCSS(); - - if (key in this._lookups) { return this._lookups[key]; } - - this.rulesets().forEach(function (rule) { - if (rule !== self) { - for (var j = 0; j < rule.selectors.length; j++) { - match = selector.match(rule.selectors[j]); - if (match) { - if (selector.elements.length > match) { - Array.prototype.push.apply(rules, rule.find( - new(tree.Selector)(selector.elements.slice(match)), self)); - } else { - rules.push(rule); - } - break; - } - } - } - }); - this._lookups[key] = rules; - return rules; - }, - genCSS: function (env, output) { - var i, j, - ruleNodes = [], - rulesetNodes = [], - rulesetNodeCnt, - debugInfo, // Line number debugging - rule, - path; - - env.tabLevel = (env.tabLevel || 0); - - if (!this.root) { - env.tabLevel++; - } - - var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "), - tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "), - sep; - - function isRulesetLikeNode(rule, root) { - // if it has nested rules, then it should be treated like a ruleset - if (rule.rules) - return true; - - // medias and comments do not have nested rules, but should be treated like rulesets anyway - if ( (rule instanceof tree.Media) || (root && rule instanceof tree.Comment)) - return true; - - // some directives and anonumoust nodes are ruleset like, others are not - if ((rule instanceof tree.Directive) || (rule instanceof tree.Anonymous)) { - return rule.isRulesetLike(); - } - - //anything else is assumed to be a rule - return false; - } - - for (i = 0; i < this.rules.length; i++) { - rule = this.rules[i]; - if (isRulesetLikeNode(rule, this.root)) { - rulesetNodes.push(rule); - } else { - ruleNodes.push(rule); - } - } - - // If this is the root node, we don't render - // a selector, or {}. - if (!this.root) { - debugInfo = tree.debugInfo(env, this, tabSetStr); - - if (debugInfo) { - output.add(debugInfo); - output.add(tabSetStr); - } - - var paths = this.paths, pathCnt = paths.length, - pathSubCnt; - - sep = env.compress ? ',' : (',\n' + tabSetStr); - - for (i = 0; i < pathCnt; i++) { - path = paths[i]; - if (!(pathSubCnt = path.length)) { continue; } - if (i > 0) { output.add(sep); } - - env.firstSelector = true; - path[0].genCSS(env, output); - - env.firstSelector = false; - for (j = 1; j < pathSubCnt; j++) { - path[j].genCSS(env, output); - } - } - - output.add((env.compress ? '{' : ' {\n') + tabRuleStr); - } - - // Compile rules and rulesets - for (i = 0; i < ruleNodes.length; i++) { - rule = ruleNodes[i]; - - // @page{ directive ends up with root elements inside it, a mix of rules and rulesets - // In this instance we do not know whether it is the last property - if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) { - env.lastRule = true; - } - - if (rule.genCSS) { - rule.genCSS(env, output); - } else if (rule.value) { - output.add(rule.value.toString()); - } - - if (!env.lastRule) { - output.add(env.compress ? '' : ('\n' + tabRuleStr)); - } else { - env.lastRule = false; - } - } - - if (!this.root) { - output.add((env.compress ? '}' : '\n' + tabSetStr + '}')); - env.tabLevel--; - } - - sep = (env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr); - rulesetNodeCnt = rulesetNodes.length; - if (rulesetNodeCnt) { - if (ruleNodes.length && sep) { output.add(sep); } - rulesetNodes[0].genCSS(env, output); - for (i = 1; i < rulesetNodeCnt; i++) { - if (sep) { output.add(sep); } - rulesetNodes[i].genCSS(env, output); - } - } - - if (!output.isEmpty() && !env.compress && this.firstRoot) { - output.add('\n'); - } - }, - - toCSS: tree.toCSS, - - markReferenced: function () { - if (!this.selectors) { - return; - } - for (var s = 0; s < this.selectors.length; s++) { - this.selectors[s].markReferenced(); - } - }, - - joinSelectors: function (paths, context, selectors) { - for (var s = 0; s < selectors.length; s++) { - this.joinSelector(paths, context, selectors[s]); - } - }, - - joinSelector: function (paths, context, selector) { - - var i, j, k, - hasParentSelector, newSelectors, el, sel, parentSel, - newSelectorPath, afterParentJoin, newJoinedSelector, - newJoinedSelectorEmpty, lastSelector, currentElements, - selectorsMultiplied; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - if (el.value === '&') { - hasParentSelector = true; - } - } - - if (!hasParentSelector) { - if (context.length > 0) { - for (i = 0; i < context.length; i++) { - paths.push(context[i].concat(selector)); - } - } - else { - paths.push([selector]); - } - return; - } - - // The paths are [[Selector]] - // The first list is a list of comma seperated selectors - // The inner list is a list of inheritance seperated selectors - // e.g. - // .a, .b { - // .c { - // } - // } - // == [[.a] [.c]] [[.b] [.c]] - // - - // the elements from the current selector so far - currentElements = []; - // the current list of new selectors to add to the path. - // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors - // by the parents - newSelectors = [[]]; - - for (i = 0; i < selector.elements.length; i++) { - el = selector.elements[i]; - // non parent reference elements just get added - if (el.value !== "&") { - currentElements.push(el); - } else { - // the new list of selectors to add - selectorsMultiplied = []; - - // merge the current list of non parent selector elements - // on to the current list of selectors to add - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - // loop through our current selectors - for (j = 0; j < newSelectors.length; j++) { - sel = newSelectors[j]; - // if we don't have any parent paths, the & might be in a mixin so that it can be used - // whether there are parents or not - if (context.length === 0) { - // the combinator used on el should now be applied to the next element instead so that - // it is not lost - if (sel.length > 0) { - sel[0].elements = sel[0].elements.slice(0); - sel[0].elements.push(new(tree.Element)(el.combinator, '', el.index, el.currentFileInfo)); - } - selectorsMultiplied.push(sel); - } - else { - // and the parent selectors - for (k = 0; k < context.length; k++) { - parentSel = context[k]; - // We need to put the current selectors - // then join the last selector's elements on to the parents selectors - - // our new selector path - newSelectorPath = []; - // selectors from the parent after the join - afterParentJoin = []; - newJoinedSelectorEmpty = true; - - //construct the joined selector - if & is the first thing this will be empty, - // if not newJoinedSelector will be the last set of elements in the selector - if (sel.length > 0) { - newSelectorPath = sel.slice(0); - lastSelector = newSelectorPath.pop(); - newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0)); - newJoinedSelectorEmpty = false; - } - else { - newJoinedSelector = selector.createDerived([]); - } - - //put together the parent selectors after the join - if (parentSel.length > 1) { - afterParentJoin = afterParentJoin.concat(parentSel.slice(1)); - } - - if (parentSel.length > 0) { - newJoinedSelectorEmpty = false; - - // join the elements so far with the first part of the parent - newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo)); - newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1)); - } - - if (!newJoinedSelectorEmpty) { - // now add the joined selector - newSelectorPath.push(newJoinedSelector); - } - - // and the rest of the parent - newSelectorPath = newSelectorPath.concat(afterParentJoin); - - // add that to our new set of selectors - selectorsMultiplied.push(newSelectorPath); - } - } - } - - // our new selectors has been multiplied, so reset the state - newSelectors = selectorsMultiplied; - currentElements = []; - } - } - - // if we have any elements left over (e.g. .a& .b == .b) - // add them on to all the current selectors - if (currentElements.length > 0) { - this.mergeElementsOnToSelectors(currentElements, newSelectors); - } - - for (i = 0; i < newSelectors.length; i++) { - if (newSelectors[i].length > 0) { - paths.push(newSelectors[i]); - } - } - }, - - mergeElementsOnToSelectors: function(elements, selectors) { - var i, sel; - - if (selectors.length === 0) { - selectors.push([ new(tree.Selector)(elements) ]); - return; - } - - for (i = 0; i < selectors.length; i++) { - sel = selectors[i]; - - // if the previous thing in sel is a parent this needs to join on to it - if (sel.length > 0) { - sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements)); - } - else { - sel.push(new(tree.Selector)(elements)); - } - } - } -}; -})(require('../tree')); - -(function (tree) { - -tree.Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) { - this.elements = elements; - this.extendList = extendList; - this.condition = condition; - this.currentFileInfo = currentFileInfo || {}; - this.isReferenced = isReferenced; - if (!condition) { - this.evaldCondition = true; - } -}; -tree.Selector.prototype = { - type: "Selector", - accept: function (visitor) { - if (this.elements) { - this.elements = visitor.visitArray(this.elements); - } - if (this.extendList) { - this.extendList = visitor.visitArray(this.extendList); - } - if (this.condition) { - this.condition = visitor.visit(this.condition); - } - }, - createDerived: function(elements, extendList, evaldCondition) { - evaldCondition = (evaldCondition != null) ? evaldCondition : this.evaldCondition; - var newSelector = new(tree.Selector)(elements, extendList || this.extendList, null, this.index, this.currentFileInfo, this.isReferenced); - newSelector.evaldCondition = evaldCondition; - newSelector.mediaEmpty = this.mediaEmpty; - return newSelector; - }, - match: function (other) { - var elements = this.elements, - len = elements.length, - olen, i; - - other.CacheElements(); - - olen = other._elements.length; - if (olen === 0 || len < olen) { - return 0; - } else { - for (i = 0; i < olen; i++) { - if (elements[i].value !== other._elements[i]) { - return 0; - } - } - } - - return olen; // return number of matched elements - }, - CacheElements: function(){ - var css = '', len, v, i; - - if( !this._elements ){ - - len = this.elements.length; - for(i = 0; i < len; i++){ - - v = this.elements[i]; - css += v.combinator.value; - - if( !v.value.value ){ - css += v.value; - continue; - } - - if( typeof v.value.value !== "string" ){ - css = ''; - break; - } - css += v.value.value; - } - - this._elements = css.match(/[,&#\.\w-]([\w-]|(\\.))*/g); - - if (this._elements) { - if (this._elements[0] === "&") { - this._elements.shift(); - } - - } else { - this._elements = []; - } - - } - }, - isJustParentSelector: function() { - return !this.mediaEmpty && - this.elements.length === 1 && - this.elements[0].value === '&' && - (this.elements[0].combinator.value === ' ' || this.elements[0].combinator.value === ''); - }, - eval: function (env) { - var evaldCondition = this.condition && this.condition.eval(env), - elements = this.elements, extendList = this.extendList; - - elements = elements && elements.map(function (e) { return e.eval(env); }); - extendList = extendList && extendList.map(function(extend) { return extend.eval(env); }); - - return this.createDerived(elements, extendList, evaldCondition); - }, - genCSS: function (env, output) { - var i, element; - if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") { - output.add(' ', this.currentFileInfo, this.index); - } - if (!this._css) { - //TODO caching? speed comparison? - for(i = 0; i < this.elements.length; i++) { - element = this.elements[i]; - element.genCSS(env, output); - } - } - }, - toCSS: tree.toCSS, - markReferenced: function () { - this.isReferenced = true; - }, - getIsReferenced: function() { - return !this.currentFileInfo.reference || this.isReferenced; - }, - getIsOutput: function() { - return this.evaldCondition; - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.UnicodeDescriptor = function (value) { - this.value = value; -}; -tree.UnicodeDescriptor.prototype = { - type: "UnicodeDescriptor", - genCSS: function (env, output) { - output.add(this.value); - }, - toCSS: tree.toCSS, - eval: function () { return this; } -}; - -})(require('../tree')); - -(function (tree) { - -tree.URL = function (val, currentFileInfo, isEvald) { - this.value = val; - this.currentFileInfo = currentFileInfo; - this.isEvald = isEvald; -}; -tree.URL.prototype = { - type: "Url", - accept: function (visitor) { - this.value = visitor.visit(this.value); - }, - genCSS: function (env, output) { - output.add("url("); - this.value.genCSS(env, output); - output.add(")"); - }, - toCSS: tree.toCSS, - eval: function (ctx) { - var val = this.value.eval(ctx), - rootpath; - - if (!this.isEvald) { - // Add the base path if the URL is relative - rootpath = this.currentFileInfo && this.currentFileInfo.rootpath; - if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) { - if (!val.quote) { - rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; }); - } - val.value = rootpath + val.value; - } - - val.value = ctx.normalizePath(val.value); - - // Add url args if enabled - if (ctx.urlArgs) { - if (!val.value.match(/^\s*data:/)) { - var delimiter = val.value.indexOf('?') === -1 ? '?' : '&'; - var urlArgs = delimiter + ctx.urlArgs; - if (val.value.indexOf('#') !== -1) { - val.value = val.value.replace('#', urlArgs + '#'); - } else { - val.value += urlArgs; - } - } - } - } - - return new(tree.URL)(val, this.currentFileInfo, true); - } -}; - -})(require('../tree')); - -(function (tree) { - -tree.Value = function (value) { - this.value = value; -}; -tree.Value.prototype = { - type: "Value", - accept: function (visitor) { - if (this.value) { - this.value = visitor.visitArray(this.value); - } - }, - eval: function (env) { - if (this.value.length === 1) { - return this.value[0].eval(env); - } else { - return new(tree.Value)(this.value.map(function (v) { - return v.eval(env); - })); - } - }, - genCSS: function (env, output) { - var i; - for(i = 0; i < this.value.length; i++) { - this.value[i].genCSS(env, output); - if (i+1 < this.value.length) { - output.add((env && env.compress) ? ',' : ', '); - } - } - }, - toCSS: tree.toCSS -}; - -})(require('../tree')); - -(function (tree) { - -tree.Variable = function (name, index, currentFileInfo) { - this.name = name; - this.index = index; - this.currentFileInfo = currentFileInfo || {}; -}; -tree.Variable.prototype = { - type: "Variable", - eval: function (env) { - var variable, name = this.name; - - if (name.indexOf('@@') === 0) { - name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; - } - - if (this.evaluating) { - throw { type: 'Name', - message: "Recursive variable definition for " + name, - filename: this.currentFileInfo.file, - index: this.index }; - } - - this.evaluating = true; - - variable = tree.find(env.frames, function (frame) { - var v = frame.variable(name); - if (v) { - return v.value.eval(env); - } - }); - if (variable) { - this.evaluating = false; - return variable; - } else { - throw { type: 'Name', - message: "variable " + name + " is undefined", - filename: this.currentFileInfo.filename, - index: this.index }; - } - } -}; - -})(require('../tree')); - -(function (tree) { - - var parseCopyProperties = [ - 'paths', // option - unmodified - paths to search for imports on - 'optimization', // option - optimization level (for the chunker) - 'files', // list of files that have been imported, used for import-once - 'contents', // map - filename to contents of all the files - 'contentsIgnoredChars', // map - filename to lines at the begining of each file to ignore - 'relativeUrls', // option - whether to adjust URL's to be relative - 'rootpath', // option - rootpath to append to URL's - 'strictImports', // option - - 'insecure', // option - whether to allow imports from insecure ssl hosts - 'dumpLineNumbers', // option - whether to dump line numbers - 'compress', // option - whether to compress - 'processImports', // option - whether to process imports. if false then imports will not be imported - 'syncImport', // option - whether to import synchronously - 'javascriptEnabled',// option - whether JavaScript is enabled. if undefined, defaults to true - 'mime', // browser only - mime type for sheet import - 'useFileCache', // browser only - whether to use the per file session cache - 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc. - ]; - - //currentFileInfo = { - // 'relativeUrls' - option - whether to adjust URL's to be relative - // 'filename' - full resolved filename of current file - // 'rootpath' - path to append to normal URLs for this node - // 'currentDirectory' - path to the current file, absolute - // 'rootFilename' - filename of the base file - // 'entryPath' - absolute path to the entry file - // 'reference' - whether the file should not be output and only output parts that are referenced - - tree.parseEnv = function(options) { - copyFromOriginal(options, this, parseCopyProperties); - - if (!this.contents) { this.contents = {}; } - if (!this.contentsIgnoredChars) { this.contentsIgnoredChars = {}; } - if (!this.files) { this.files = {}; } - - if (typeof this.paths === "string") { this.paths = [this.paths]; } - - if (!this.currentFileInfo) { - var filename = (options && options.filename) || "input"; - var entryPath = filename.replace(/[^\/\\]*$/, ""); - if (options) { - options.filename = null; - } - this.currentFileInfo = { - filename: filename, - relativeUrls: this.relativeUrls, - rootpath: (options && options.rootpath) || "", - currentDirectory: entryPath, - entryPath: entryPath, - rootFilename: filename - }; - } - }; - - var evalCopyProperties = [ - 'silent', // whether to swallow errors and warnings - 'verbose', // whether to log more activity - 'compress', // whether to compress - 'yuicompress', // whether to compress with the outside tool yui compressor - 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri) - 'strictMath', // whether math has to be within parenthesis - 'strictUnits', // whether units need to evaluate correctly - 'cleancss', // whether to compress with clean-css - 'sourceMap', // whether to output a source map - 'importMultiple', // whether we are currently importing multiple copies - 'urlArgs' // whether to add args into url tokens - ]; - - tree.evalEnv = function(options, frames) { - copyFromOriginal(options, this, evalCopyProperties); - - this.frames = frames || []; - }; - - tree.evalEnv.prototype.inParenthesis = function () { - if (!this.parensStack) { - this.parensStack = []; - } - this.parensStack.push(true); - }; - - tree.evalEnv.prototype.outOfParenthesis = function () { - this.parensStack.pop(); - }; - - tree.evalEnv.prototype.isMathOn = function () { - return this.strictMath ? (this.parensStack && this.parensStack.length) : true; - }; - - tree.evalEnv.prototype.isPathRelative = function (path) { - return !/^(?:[a-z-]+:|\/)/.test(path); - }; - - tree.evalEnv.prototype.normalizePath = function( path ) { - var - segments = path.split("/").reverse(), - segment; - - path = []; - while (segments.length !== 0 ) { - segment = segments.pop(); - switch( segment ) { - case ".": - break; - case "..": - if ((path.length === 0) || (path[path.length - 1] === "..")) { - path.push( segment ); - } else { - path.pop(); - } - break; - default: - path.push( segment ); - break; - } - } - - return path.join("/"); - }; - - //todo - do the same for the toCSS env - //tree.toCSSEnv = function (options) { - //}; - - var copyFromOriginal = function(original, destination, propertiesToCopy) { - if (!original) { return; } - - for(var i = 0; i < propertiesToCopy.length; i++) { - if (original.hasOwnProperty(propertiesToCopy[i])) { - destination[propertiesToCopy[i]] = original[propertiesToCopy[i]]; - } - } - }; - -})(require('./tree')); - -(function (tree) { - - var _visitArgs = { visitDeeper: true }, - _hasIndexed = false; - - function _noop(node) { - return node; - } - - function indexNodeTypes(parent, ticker) { - // add .typeIndex to tree node types for lookup table - var key, child; - for (key in parent) { - if (parent.hasOwnProperty(key)) { - child = parent[key]; - switch (typeof child) { - case "function": - // ignore bound functions directly on tree which do not have a prototype - // or aren't nodes - if (child.prototype && child.prototype.type) { - child.prototype.typeIndex = ticker++; - } - break; - case "object": - ticker = indexNodeTypes(child, ticker); - break; - } - } - } - return ticker; - } - - tree.visitor = function(implementation) { - this._implementation = implementation; - this._visitFnCache = []; - - if (!_hasIndexed) { - indexNodeTypes(tree, 1); - _hasIndexed = true; - } - }; - - tree.visitor.prototype = { - visit: function(node) { - if (!node) { - return node; - } - - var nodeTypeIndex = node.typeIndex; - if (!nodeTypeIndex) { - return node; - } - - var visitFnCache = this._visitFnCache, - impl = this._implementation, - aryIndx = nodeTypeIndex << 1, - outAryIndex = aryIndx | 1, - func = visitFnCache[aryIndx], - funcOut = visitFnCache[outAryIndex], - visitArgs = _visitArgs, - fnName; - - visitArgs.visitDeeper = true; - - if (!func) { - fnName = "visit" + node.type; - func = impl[fnName] || _noop; - funcOut = impl[fnName + "Out"] || _noop; - visitFnCache[aryIndx] = func; - visitFnCache[outAryIndex] = funcOut; - } - - if (func !== _noop) { - var newNode = func.call(impl, node, visitArgs); - if (impl.isReplacing) { - node = newNode; - } - } - - if (visitArgs.visitDeeper && node && node.accept) { - node.accept(this); - } - - if (funcOut != _noop) { - funcOut.call(impl, node); - } - - return node; - }, - visitArray: function(nodes, nonReplacing) { - if (!nodes) { - return nodes; - } - - var cnt = nodes.length, i; - - // Non-replacing - if (nonReplacing || !this._implementation.isReplacing) { - for (i = 0; i < cnt; i++) { - this.visit(nodes[i]); - } - return nodes; - } - - // Replacing - var out = []; - for (i = 0; i < cnt; i++) { - var evald = this.visit(nodes[i]); - if (!evald.splice) { - out.push(evald); - } else if (evald.length) { - this.flatten(evald, out); - } - } - return out; - }, - flatten: function(arr, out) { - if (!out) { - out = []; - } - - var cnt, i, item, - nestedCnt, j, nestedItem; - - for (i = 0, cnt = arr.length; i < cnt; i++) { - item = arr[i]; - if (!item.splice) { - out.push(item); - continue; - } - - for (j = 0, nestedCnt = item.length; j < nestedCnt; j++) { - nestedItem = item[j]; - if (!nestedItem.splice) { - out.push(nestedItem); - } else if (nestedItem.length) { - this.flatten(nestedItem, out); - } - } - } - - return out; - } - }; - -})(require('./tree')); -(function (tree) { - tree.importVisitor = function(importer, finish, evalEnv, onceFileDetectionMap, recursionDetector) { - this._visitor = new tree.visitor(this); - this._importer = importer; - this._finish = finish; - this.env = evalEnv || new tree.evalEnv(); - this.importCount = 0; - this.onceFileDetectionMap = onceFileDetectionMap || {}; - this.recursionDetector = {}; - if (recursionDetector) { - for(var fullFilename in recursionDetector) { - if (recursionDetector.hasOwnProperty(fullFilename)) { - this.recursionDetector[fullFilename] = true; - } - } - } - }; - - tree.importVisitor.prototype = { - isReplacing: true, - run: function (root) { - var error; - try { - // process the contents - this._visitor.visit(root); - } - catch(e) { - error = e; - } - - this.isFinished = true; - - if (this.importCount === 0) { - this._finish(error); - } - }, - visitImport: function (importNode, visitArgs) { - var importVisitor = this, - evaldImportNode, - inlineCSS = importNode.options.inline; - - if (!importNode.css || inlineCSS) { - - try { - evaldImportNode = importNode.evalForImport(this.env); - } catch(e){ - if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; } - // attempt to eval properly and treat as css - importNode.css = true; - // if that fails, this error will be thrown - importNode.error = e; - } - - if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) { - importNode = evaldImportNode; - this.importCount++; - var env = new tree.evalEnv(this.env, this.env.frames.slice(0)); - - if (importNode.options.multiple) { - env.importMultiple = true; - } - - this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, importedAtRoot, fullPath) { - if (e && !e.filename) { - e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; - } - - var duplicateImport = importedAtRoot || fullPath in importVisitor.recursionDetector; - if (!env.importMultiple) { - if (duplicateImport) { - importNode.skip = true; - } else { - importNode.skip = function() { - if (fullPath in importVisitor.onceFileDetectionMap) { - return true; - } - importVisitor.onceFileDetectionMap[fullPath] = true; - return false; - }; - } - } - - var subFinish = function(e) { - importVisitor.importCount--; - - if (importVisitor.importCount === 0 && importVisitor.isFinished) { - importVisitor._finish(e); - } - }; - - if (root) { - importNode.root = root; - importNode.importedFilename = fullPath; - - if (!inlineCSS && (env.importMultiple || !duplicateImport)) { - importVisitor.recursionDetector[fullPath] = true; - new(tree.importVisitor)(importVisitor._importer, subFinish, env, importVisitor.onceFileDetectionMap, importVisitor.recursionDetector) - .run(root); - return; - } - } - - subFinish(); - }); - } - } - visitArgs.visitDeeper = false; - return importNode; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - return ruleNode; - }, - visitDirective: function (directiveNode, visitArgs) { - this.env.frames.unshift(directiveNode); - return directiveNode; - }, - visitDirectiveOut: function (directiveNode) { - this.env.frames.shift(); - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - this.env.frames.unshift(mixinDefinitionNode); - return mixinDefinitionNode; - }, - visitMixinDefinitionOut: function (mixinDefinitionNode) { - this.env.frames.shift(); - }, - visitRuleset: function (rulesetNode, visitArgs) { - this.env.frames.unshift(rulesetNode); - return rulesetNode; - }, - visitRulesetOut: function (rulesetNode) { - this.env.frames.shift(); - }, - visitMedia: function (mediaNode, visitArgs) { - this.env.frames.unshift(mediaNode.ruleset); - return mediaNode; - }, - visitMediaOut: function (mediaNode) { - this.env.frames.shift(); - } - }; - -})(require('./tree')); - -(function (tree) { - tree.joinSelectorVisitor = function() { - this.contexts = [[]]; - this._visitor = new tree.visitor(this); - }; - - tree.joinSelectorVisitor.prototype = { - run: function (root) { - return this._visitor.visit(root); - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1], - paths = [], selectors; - - this.contexts.push(paths); - - if (! rulesetNode.root) { - selectors = rulesetNode.selectors; - if (selectors) { - selectors = selectors.filter(function(selector) { return selector.getIsOutput(); }); - rulesetNode.selectors = selectors.length ? selectors : (selectors = null); - if (selectors) { rulesetNode.joinSelectors(paths, context, selectors); } - } - if (!selectors) { rulesetNode.rules = null; } - rulesetNode.paths = paths; - } - }, - visitRulesetOut: function (rulesetNode) { - this.contexts.length = this.contexts.length - 1; - }, - visitMedia: function (mediaNode, visitArgs) { - var context = this.contexts[this.contexts.length - 1]; - mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); - } - }; - -})(require('./tree')); -(function (tree) { - tree.toCSSVisitor = function(env) { - this._visitor = new tree.visitor(this); - this._env = env; - }; - - tree.toCSSVisitor.prototype = { - isReplacing: true, - run: function (root) { - return this._visitor.visit(root); - }, - - visitRule: function (ruleNode, visitArgs) { - if (ruleNode.variable) { - return []; - } - return ruleNode; - }, - - visitMixinDefinition: function (mixinNode, visitArgs) { - // mixin definitions do not get eval'd - this means they keep state - // so we have to clear that state here so it isn't used if toCSS is called twice - mixinNode.frames = []; - return []; - }, - - visitExtend: function (extendNode, visitArgs) { - return []; - }, - - visitComment: function (commentNode, visitArgs) { - if (commentNode.isSilent(this._env)) { - return []; - } - return commentNode; - }, - - visitMedia: function(mediaNode, visitArgs) { - mediaNode.accept(this._visitor); - visitArgs.visitDeeper = false; - - if (!mediaNode.rules.length) { - return []; - } - return mediaNode; - }, - - visitDirective: function(directiveNode, visitArgs) { - if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) { - return []; - } - if (directiveNode.name === "@charset") { - // Only output the debug info together with subsequent @charset definitions - // a comment (or @media statement) before the actual @charset directive would - // be considered illegal css as it has to be on the first line - if (this.charset) { - if (directiveNode.debugInfo) { - var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n"); - comment.debugInfo = directiveNode.debugInfo; - return this._visitor.visit(comment); - } - return []; - } - this.charset = true; - } - if (directiveNode.rules && directiveNode.rules.rules) { - this._mergeRules(directiveNode.rules.rules); - } - return directiveNode; - }, - - checkPropertiesInRoot: function(rules) { - var ruleNode; - for(var i = 0; i < rules.length; i++) { - ruleNode = rules[i]; - if (ruleNode instanceof tree.Rule && !ruleNode.variable) { - throw { message: "properties must be inside selector blocks, they cannot be in the root.", - index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null}; - } - } - }, - - visitRuleset: function (rulesetNode, visitArgs) { - var rule, rulesets = []; - if (rulesetNode.firstRoot) { - this.checkPropertiesInRoot(rulesetNode.rules); - } - if (! rulesetNode.root) { - if (rulesetNode.paths) { - rulesetNode.paths = rulesetNode.paths - .filter(function(p) { - var i; - if (p[0].elements[0].combinator.value === ' ') { - p[0].elements[0].combinator = new(tree.Combinator)(''); - } - for(i = 0; i < p.length; i++) { - if (p[i].getIsReferenced() && p[i].getIsOutput()) { - return true; - } - } - return false; - }); - } - - // Compile rules and rulesets - var nodeRules = rulesetNode.rules, nodeRuleCnt = nodeRules ? nodeRules.length : 0; - for (var i = 0; i < nodeRuleCnt; ) { - rule = nodeRules[i]; - if (rule && rule.rules) { - // visit because we are moving them out from being a child - rulesets.push(this._visitor.visit(rule)); - nodeRules.splice(i, 1); - nodeRuleCnt--; - continue; - } - i++; - } - // accept the visitor to remove rules and refactor itself - // then we can decide now whether we want it or not - if (nodeRuleCnt > 0) { - rulesetNode.accept(this._visitor); - } else { - rulesetNode.rules = null; - } - visitArgs.visitDeeper = false; - - nodeRules = rulesetNode.rules; - if (nodeRules) { - this._mergeRules(nodeRules); - nodeRules = rulesetNode.rules; - } - if (nodeRules) { - this._removeDuplicateRules(nodeRules); - nodeRules = rulesetNode.rules; - } - - // now decide whether we keep the ruleset - if (nodeRules && nodeRules.length > 0 && rulesetNode.paths.length > 0) { - rulesets.splice(0, 0, rulesetNode); - } - } else { - rulesetNode.accept(this._visitor); - visitArgs.visitDeeper = false; - if (rulesetNode.firstRoot || (rulesetNode.rules && rulesetNode.rules.length > 0)) { - rulesets.splice(0, 0, rulesetNode); - } - } - if (rulesets.length === 1) { - return rulesets[0]; - } - return rulesets; - }, - - _removeDuplicateRules: function(rules) { - if (!rules) { return; } - - // remove duplicates - var ruleCache = {}, - ruleList, rule, i; - - for(i = rules.length - 1; i >= 0 ; i--) { - rule = rules[i]; - if (rule instanceof tree.Rule) { - if (!ruleCache[rule.name]) { - ruleCache[rule.name] = rule; - } else { - ruleList = ruleCache[rule.name]; - if (ruleList instanceof tree.Rule) { - ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)]; - } - var ruleCSS = rule.toCSS(this._env); - if (ruleList.indexOf(ruleCSS) !== -1) { - rules.splice(i, 1); - } else { - ruleList.push(ruleCSS); - } - } - } - } - }, - - _mergeRules: function (rules) { - if (!rules) { return; } - - var groups = {}, - parts, - rule, - key; - - for (var i = 0; i < rules.length; i++) { - rule = rules[i]; - - if ((rule instanceof tree.Rule) && rule.merge) { - key = [rule.name, - rule.important ? "!" : ""].join(","); - - if (!groups[key]) { - groups[key] = []; - } else { - rules.splice(i--, 1); - } - - groups[key].push(rule); - } - } - - Object.keys(groups).map(function (k) { - - function toExpression(values) { - return new (tree.Expression)(values.map(function (p) { - return p.value; - })); - } - - function toValue(values) { - return new (tree.Value)(values.map(function (p) { - return p; - })); - } - - parts = groups[k]; - - if (parts.length > 1) { - rule = parts[0]; - var spacedGroups = []; - var lastSpacedGroup = []; - parts.map(function (p) { - if (p.merge==="+") { - if (lastSpacedGroup.length > 0) { - spacedGroups.push(toExpression(lastSpacedGroup)); - } - lastSpacedGroup = []; - } - lastSpacedGroup.push(p); - }); - spacedGroups.push(toExpression(lastSpacedGroup)); - rule.value = toValue(spacedGroups); - } - }); - } - }; - -})(require('./tree')); -(function (tree) { - /*jshint loopfunc:true */ - - tree.extendFinderVisitor = function() { - this._visitor = new tree.visitor(this); - this.contexts = []; - this.allExtendsStack = [[]]; - }; - - tree.extendFinderVisitor.prototype = { - run: function (root) { - root = this._visitor.visit(root); - root.allExtends = this.allExtendsStack[0]; - return root; - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - - var i, j, extend, allSelectorsExtendList = [], extendList; - - // get &:extend(.a); rules which apply to all selectors in this ruleset - var rules = rulesetNode.rules, ruleCnt = rules ? rules.length : 0; - for(i = 0; i < ruleCnt; i++) { - if (rulesetNode.rules[i] instanceof tree.Extend) { - allSelectorsExtendList.push(rules[i]); - rulesetNode.extendOnEveryPath = true; - } - } - - // now find every selector and apply the extends that apply to all extends - // and the ones which apply to an individual extend - var paths = rulesetNode.paths; - for(i = 0; i < paths.length; i++) { - var selectorPath = paths[i], - selector = selectorPath[selectorPath.length - 1], - selExtendList = selector.extendList; - - extendList = selExtendList ? selExtendList.slice(0).concat(allSelectorsExtendList) - : allSelectorsExtendList; - - if (extendList) { - extendList = extendList.map(function(allSelectorsExtend) { - return allSelectorsExtend.clone(); - }); - } - - for(j = 0; j < extendList.length; j++) { - this.foundExtends = true; - extend = extendList[j]; - extend.findSelfSelectors(selectorPath); - extend.ruleset = rulesetNode; - if (j === 0) { extend.firstExtendOnThisSelectorPath = true; } - this.allExtendsStack[this.allExtendsStack.length-1].push(extend); - } - } - - this.contexts.push(rulesetNode.selectors); - }, - visitRulesetOut: function (rulesetNode) { - if (!rulesetNode.root) { - this.contexts.length = this.contexts.length - 1; - } - }, - visitMedia: function (mediaNode, visitArgs) { - mediaNode.allExtends = []; - this.allExtendsStack.push(mediaNode.allExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - directiveNode.allExtends = []; - this.allExtendsStack.push(directiveNode.allExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - - tree.processExtendsVisitor = function() { - this._visitor = new tree.visitor(this); - }; - - tree.processExtendsVisitor.prototype = { - run: function(root) { - var extendFinder = new tree.extendFinderVisitor(); - extendFinder.run(root); - if (!extendFinder.foundExtends) { return root; } - root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); - this.allExtendsStack = [root.allExtends]; - return this._visitor.visit(root); - }, - doExtendChaining: function (extendsList, extendsListTarget, iterationCount) { - // - // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting - // the selector we would do normally, but we are also adding an extend with the same target selector - // this means this new extend can then go and alter other extends - // - // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors - // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if - // we look at each selector at a time, as is done in visitRuleset - - var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend; - - iterationCount = iterationCount || 0; - - //loop through comparing every extend with every target extend. - // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place - // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one - // and the second is the target. - // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the - // case when processing media queries - for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){ - for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){ - - extend = extendsList[extendIndex]; - targetExtend = extendsListTarget[targetExtendIndex]; - - // look for circular references - if( extend.parent_ids.indexOf( targetExtend.object_id ) >= 0 ){ continue; } - - // find a match in the target extends self selector (the bit before :extend) - selectorPath = [targetExtend.selfSelectors[0]]; - matches = extendVisitor.findMatch(extend, selectorPath); - - if (matches.length) { - - // we found a match, so for each self selector.. - extend.selfSelectors.forEach(function(selfSelector) { - - // process the extend as usual - newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector); - - // but now we create a new extend from it - newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0); - newExtend.selfSelectors = newSelector; - - // add the extend onto the list of extends for that selector - newSelector[newSelector.length-1].extendList = [newExtend]; - - // record that we need to add it. - extendsToAdd.push(newExtend); - newExtend.ruleset = targetExtend.ruleset; - - //remember its parents for circular references - newExtend.parent_ids = newExtend.parent_ids.concat(targetExtend.parent_ids, extend.parent_ids); - - // only process the selector once.. if we have :extend(.a,.b) then multiple - // extends will look at the same selector path, so when extending - // we know that any others will be duplicates in terms of what is added to the css - if (targetExtend.firstExtendOnThisSelectorPath) { - newExtend.firstExtendOnThisSelectorPath = true; - targetExtend.ruleset.paths.push(newSelector); - } - }); - } - } - } - - if (extendsToAdd.length) { - // try to detect circular references to stop a stack overflow. - // may no longer be needed. - this.extendChainCount++; - if (iterationCount > 100) { - var selectorOne = "{unable to calculate}"; - var selectorTwo = "{unable to calculate}"; - try - { - selectorOne = extendsToAdd[0].selfSelectors[0].toCSS(); - selectorTwo = extendsToAdd[0].selector.toCSS(); - } - catch(e) {} - throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"}; - } - - // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e... - return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1)); - } else { - return extendsToAdd; - } - }, - visitRule: function (ruleNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitSelector: function (selectorNode, visitArgs) { - visitArgs.visitDeeper = false; - }, - visitRuleset: function (rulesetNode, visitArgs) { - if (rulesetNode.root) { - return; - } - var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath; - - // look at each selector path in the ruleset, find any extend matches and then copy, find and replace - - for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) { - for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) { - selectorPath = rulesetNode.paths[pathIndex]; - - // extending extends happens initially, before the main pass - if (rulesetNode.extendOnEveryPath) { continue; } - var extendList = selectorPath[selectorPath.length-1].extendList; - if (extendList && extendList.length) { continue; } - - matches = this.findMatch(allExtends[extendIndex], selectorPath); - - if (matches.length) { - - allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) { - selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector)); - }); - } - } - } - rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); - }, - findMatch: function (extend, haystackSelectorPath) { - // - // look through the haystack selector path to try and find the needle - extend.selector - // returns an array of selector matches that can then be replaced - // - var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement, - targetCombinator, i, - extendVisitor = this, - needleElements = extend.selector.elements, - potentialMatches = [], potentialMatch, matches = []; - - // loop through the haystack elements - for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) { - hackstackSelector = haystackSelectorPath[haystackSelectorIndex]; - - for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) { - - haystackElement = hackstackSelector.elements[hackstackElementIndex]; - - // if we allow elements before our match we can add a potential match every time. otherwise only at the first element. - if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) { - potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator}); - } - - for(i = 0; i < potentialMatches.length; i++) { - potentialMatch = potentialMatches[i]; - - // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't - // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out - // what the resulting combinator will be - targetCombinator = haystackElement.combinator.value; - if (targetCombinator === '' && hackstackElementIndex === 0) { - targetCombinator = ' '; - } - - // if we don't match, null our match to indicate failure - if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) || - (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) { - potentialMatch = null; - } else { - potentialMatch.matched++; - } - - // if we are still valid and have finished, test whether we have elements after and whether these are allowed - if (potentialMatch) { - potentialMatch.finished = potentialMatch.matched === needleElements.length; - if (potentialMatch.finished && - (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) { - potentialMatch = null; - } - } - // if null we remove, if not, we are still valid, so either push as a valid match or continue - if (potentialMatch) { - if (potentialMatch.finished) { - potentialMatch.length = needleElements.length; - potentialMatch.endPathIndex = haystackSelectorIndex; - potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match - potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again - matches.push(potentialMatch); - } - } else { - potentialMatches.splice(i, 1); - i--; - } - } - } - } - return matches; - }, - isElementValuesEqual: function(elementValue1, elementValue2) { - if (typeof elementValue1 === "string" || typeof elementValue2 === "string") { - return elementValue1 === elementValue2; - } - if (elementValue1 instanceof tree.Attribute) { - if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) { - return false; - } - if (!elementValue1.value || !elementValue2.value) { - if (elementValue1.value || elementValue2.value) { - return false; - } - return true; - } - elementValue1 = elementValue1.value.value || elementValue1.value; - elementValue2 = elementValue2.value.value || elementValue2.value; - return elementValue1 === elementValue2; - } - elementValue1 = elementValue1.value; - elementValue2 = elementValue2.value; - if (elementValue1 instanceof tree.Selector) { - if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) { - return false; - } - for(var i = 0; i currentSelectorPathIndex && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - - newElements = selector.elements - .slice(currentSelectorPathElementIndex, match.index) - .concat([firstElement]) - .concat(replacementSelector.elements.slice(1)); - - if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) { - path[path.length - 1].elements = - path[path.length - 1].elements.concat(newElements); - } else { - path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex)); - - path.push(new tree.Selector( - newElements - )); - } - currentSelectorPathIndex = match.endPathIndex; - currentSelectorPathElementIndex = match.endPathElementIndex; - if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) { - currentSelectorPathElementIndex = 0; - currentSelectorPathIndex++; - } - } - - if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) { - path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex)); - currentSelectorPathIndex++; - } - - path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length)); - - return path; - }, - visitRulesetOut: function (rulesetNode) { - }, - visitMedia: function (mediaNode, visitArgs) { - var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitMediaOut: function (mediaNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - }, - visitDirective: function (directiveNode, visitArgs) { - var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]); - newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends)); - this.allExtendsStack.push(newAllExtends); - }, - visitDirectiveOut: function (directiveNode) { - this.allExtendsStack.length = this.allExtendsStack.length - 1; - } - }; - -})(require('./tree')); - -(function (tree) { - - tree.sourceMapOutput = function (options) { - this._css = []; - this._rootNode = options.rootNode; - this._writeSourceMap = options.writeSourceMap; - this._contentsMap = options.contentsMap; - this._contentsIgnoredCharsMap = options.contentsIgnoredCharsMap; - this._sourceMapFilename = options.sourceMapFilename; - this._outputFilename = options.outputFilename; - this._sourceMapURL = options.sourceMapURL; - if (options.sourceMapBasepath) { - this._sourceMapBasepath = options.sourceMapBasepath.replace(/\\/g, '/'); - } - this._sourceMapRootpath = options.sourceMapRootpath; - this._outputSourceFiles = options.outputSourceFiles; - this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator; - - if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') { - this._sourceMapRootpath += '/'; - } - - this._lineNumber = 0; - this._column = 0; - }; - - tree.sourceMapOutput.prototype.normalizeFilename = function(filename) { - filename = filename.replace(/\\/g, '/'); - - if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) { - filename = filename.substring(this._sourceMapBasepath.length); - if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') { - filename = filename.substring(1); - } - } - return (this._sourceMapRootpath || "") + filename; - }; - - tree.sourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) { - - //ignore adding empty strings - if (!chunk) { - return; - } - - var lines, - sourceLines, - columns, - sourceColumns, - i; - - if (fileInfo) { - var inputSource = this._contentsMap[fileInfo.filename]; - - // remove vars/banner added to the top of the file - if (this._contentsIgnoredCharsMap[fileInfo.filename]) { - // adjust the index - index -= this._contentsIgnoredCharsMap[fileInfo.filename]; - if (index < 0) { index = 0; } - // adjust the source - inputSource = inputSource.slice(this._contentsIgnoredCharsMap[fileInfo.filename]); - } - inputSource = inputSource.substring(0, index); - sourceLines = inputSource.split("\n"); - sourceColumns = sourceLines[sourceLines.length-1]; - } - - lines = chunk.split("\n"); - columns = lines[lines.length-1]; - - if (fileInfo) { - if (!mapLines) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column}, - original: { line: sourceLines.length, column: sourceColumns.length}, - source: this.normalizeFilename(fileInfo.filename)}); - } else { - for(i = 0; i < lines.length; i++) { - this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0}, - original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0}, - source: this.normalizeFilename(fileInfo.filename)}); - } - } - } - - if (lines.length === 1) { - this._column += columns.length; - } else { - this._lineNumber += lines.length - 1; - this._column = columns.length; - } - - this._css.push(chunk); - }; - - tree.sourceMapOutput.prototype.isEmpty = function() { - return this._css.length === 0; - }; - - tree.sourceMapOutput.prototype.toCSS = function(env) { - this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null }); - - if (this._outputSourceFiles) { - for(var filename in this._contentsMap) { - if (this._contentsMap.hasOwnProperty(filename)) - { - var source = this._contentsMap[filename]; - if (this._contentsIgnoredCharsMap[filename]) { - source = source.slice(this._contentsIgnoredCharsMap[filename]); - } - this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), source); - } - } - } - - this._rootNode.genCSS(env, this); - - if (this._css.length > 0) { - var sourceMapURL, - sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); - - if (this._sourceMapURL) { - sourceMapURL = this._sourceMapURL; - } else if (this._sourceMapFilename) { - sourceMapURL = this.normalizeFilename(this._sourceMapFilename); - } - - if (this._writeSourceMap) { - this._writeSourceMap(sourceMapContent); - } else { - sourceMapURL = "data:application/json;base64," + require('./encoder.js').encodeBase64(sourceMapContent); - } - - if (sourceMapURL) { - this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */"); - } - } - - return this._css.join(''); - }; - -})(require('./tree')); - -// wraps the source-map code in a less module -(function() { - less.modules["source-map"] = function() { - -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ - -/** - * Define a module along with a payload. - * @param {string} moduleName Name for the payload - * @param {ignored} deps Ignored. For compatibility with CommonJS AMD Spec - * @param {function} payload Function with (require, exports, module) params - */ -function define(moduleName, deps, payload) { - if (typeof moduleName != "string") { - throw new TypeError('Expected string, got: ' + moduleName); - } - - if (arguments.length == 2) { - payload = deps; - } - - if (moduleName in define.modules) { - throw new Error("Module already defined: " + moduleName); - } - define.modules[moduleName] = payload; -}; - -/** - * The global store of un-instantiated modules - */ -define.modules = {}; - - -/** - * We invoke require() in the context of a Domain so we can have multiple - * sets of modules running separate from each other. - * This contrasts with JSMs which are singletons, Domains allows us to - * optionally load a CommonJS module twice with separate data each time. - * Perhaps you want 2 command lines with a different set of commands in each, - * for example. - */ -function Domain() { - this.modules = {}; - this._currentModule = null; -} - -(function () { - - /** - * Lookup module names and resolve them by calling the definition function if - * needed. - * There are 2 ways to call this, either with an array of dependencies and a - * callback to call when the dependencies are found (which can happen - * asynchronously in an in-page context) or with a single string an no callback - * where the dependency is resolved synchronously and returned. - * The API is designed to be compatible with the CommonJS AMD spec and - * RequireJS. - * @param {string[]|string} deps A name, or names for the payload - * @param {function|undefined} callback Function to call when the dependencies - * are resolved - * @return {undefined|object} The module required or undefined for - * array/callback method - */ - Domain.prototype.require = function(deps, callback) { - if (Array.isArray(deps)) { - var params = deps.map(function(dep) { - return this.lookup(dep); - }, this); - if (callback) { - callback.apply(null, params); - } - return undefined; - } - else { - return this.lookup(deps); - } - }; - - function normalize(path) { - var bits = path.split('/'); - var i = 1; - while (i < bits.length) { - if (bits[i] === '..') { - bits.splice(i-1, 1); - } else if (bits[i] === '.') { - bits.splice(i, 1); - } else { - i++; - } - } - return bits.join('/'); - } - - function join(a, b) { - a = a.trim(); - b = b.trim(); - if (/^\//.test(b)) { - return b; - } else { - return a.replace(/\/*$/, '/') + b; - } - } - - function dirname(path) { - var bits = path.split('/'); - bits.pop(); - return bits.join('/'); - } - - /** - * Lookup module names and resolve them by calling the definition function if - * needed. - * @param {string} moduleName A name for the payload to lookup - * @return {object} The module specified by aModuleName or null if not found. - */ - Domain.prototype.lookup = function(moduleName) { - if (/^\./.test(moduleName)) { - moduleName = normalize(join(dirname(this._currentModule), moduleName)); - } - - if (moduleName in this.modules) { - var module = this.modules[moduleName]; - return module; - } - - if (!(moduleName in define.modules)) { - throw new Error("Module not defined: " + moduleName); - } - - var module = define.modules[moduleName]; - - if (typeof module == "function") { - var exports = {}; - var previousModule = this._currentModule; - this._currentModule = moduleName; - module(this.require.bind(this), exports, { id: moduleName, uri: "" }); - this._currentModule = previousModule; - module = exports; - } - - // cache the resulting module object for next time - this.modules[moduleName] = module; - - return module; - }; - -}()); - -define.Domain = Domain; -define.globalDomain = new Domain(); -var require = define.globalDomain.require.bind(define.globalDomain); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/source-map-generator', ['require', 'exports', 'module' , 'source-map/base64-vlq', 'source-map/util', 'source-map/array-set'], function(require, exports, module) { - - var base64VLQ = require('./base64-vlq'); - var util = require('./util'); - var ArraySet = require('./array-set').ArraySet; - - /** - * An instance of the SourceMapGenerator represents a source map which is - * being built incrementally. To create a new one, you must pass an object - * with the following properties: - * - * - file: The filename of the generated source. - * - sourceRoot: An optional root for all URLs in this source map. - */ - function SourceMapGenerator(aArgs) { - this._file = util.getArg(aArgs, 'file'); - this._sourceRoot = util.getArg(aArgs, 'sourceRoot', null); - this._sources = new ArraySet(); - this._names = new ArraySet(); - this._mappings = []; - this._sourcesContents = null; - } - - SourceMapGenerator.prototype._version = 3; - - /** - * Creates a new SourceMapGenerator based on a SourceMapConsumer - * - * @param aSourceMapConsumer The SourceMap. - */ - SourceMapGenerator.fromSourceMap = - function SourceMapGenerator_fromSourceMap(aSourceMapConsumer) { - var sourceRoot = aSourceMapConsumer.sourceRoot; - var generator = new SourceMapGenerator({ - file: aSourceMapConsumer.file, - sourceRoot: sourceRoot - }); - aSourceMapConsumer.eachMapping(function (mapping) { - var newMapping = { - generated: { - line: mapping.generatedLine, - column: mapping.generatedColumn - } - }; - - if (mapping.source) { - newMapping.source = mapping.source; - if (sourceRoot) { - newMapping.source = util.relative(sourceRoot, newMapping.source); - } - - newMapping.original = { - line: mapping.originalLine, - column: mapping.originalColumn - }; - - if (mapping.name) { - newMapping.name = mapping.name; - } - } - - generator.addMapping(newMapping); - }); - aSourceMapConsumer.sources.forEach(function (sourceFile) { - var content = aSourceMapConsumer.sourceContentFor(sourceFile); - if (content) { - generator.setSourceContent(sourceFile, content); - } - }); - return generator; - }; - - /** - * Add a single mapping from original source line and column to the generated - * source's line and column for this source map being created. The mapping - * object should have the following properties: - * - * - generated: An object with the generated line and column positions. - * - original: An object with the original line and column positions. - * - source: The original source file (relative to the sourceRoot). - * - name: An optional original token name for this mapping. - */ - SourceMapGenerator.prototype.addMapping = - function SourceMapGenerator_addMapping(aArgs) { - var generated = util.getArg(aArgs, 'generated'); - var original = util.getArg(aArgs, 'original', null); - var source = util.getArg(aArgs, 'source', null); - var name = util.getArg(aArgs, 'name', null); - - this._validateMapping(generated, original, source, name); - - if (source && !this._sources.has(source)) { - this._sources.add(source); - } - - if (name && !this._names.has(name)) { - this._names.add(name); - } - - this._mappings.push({ - generatedLine: generated.line, - generatedColumn: generated.column, - originalLine: original != null && original.line, - originalColumn: original != null && original.column, - source: source, - name: name - }); - }; - - /** - * Set the source content for a source file. - */ - SourceMapGenerator.prototype.setSourceContent = - function SourceMapGenerator_setSourceContent(aSourceFile, aSourceContent) { - var source = aSourceFile; - if (this._sourceRoot) { - source = util.relative(this._sourceRoot, source); - } - - if (aSourceContent !== null) { - // Add the source content to the _sourcesContents map. - // Create a new _sourcesContents map if the property is null. - if (!this._sourcesContents) { - this._sourcesContents = {}; - } - this._sourcesContents[util.toSetString(source)] = aSourceContent; - } else { - // Remove the source file from the _sourcesContents map. - // If the _sourcesContents map is empty, set the property to null. - delete this._sourcesContents[util.toSetString(source)]; - if (Object.keys(this._sourcesContents).length === 0) { - this._sourcesContents = null; - } - } - }; - - /** - * Applies the mappings of a sub-source-map for a specific source file to the - * source map being generated. Each mapping to the supplied source file is - * rewritten using the supplied source map. Note: The resolution for the - * resulting mappings is the minimium of this map and the supplied map. - * - * @param aSourceMapConsumer The source map to be applied. - * @param aSourceFile Optional. The filename of the source file. - * If omitted, SourceMapConsumer's file property will be used. - */ - SourceMapGenerator.prototype.applySourceMap = - function SourceMapGenerator_applySourceMap(aSourceMapConsumer, aSourceFile) { - // If aSourceFile is omitted, we will use the file property of the SourceMap - if (!aSourceFile) { - aSourceFile = aSourceMapConsumer.file; - } - var sourceRoot = this._sourceRoot; - // Make "aSourceFile" relative if an absolute Url is passed. - if (sourceRoot) { - aSourceFile = util.relative(sourceRoot, aSourceFile); - } - // Applying the SourceMap can add and remove items from the sources and - // the names array. - var newSources = new ArraySet(); - var newNames = new ArraySet(); - - // Find mappings for the "aSourceFile" - this._mappings.forEach(function (mapping) { - if (mapping.source === aSourceFile && mapping.originalLine) { - // Check if it can be mapped by the source map, then update the mapping. - var original = aSourceMapConsumer.originalPositionFor({ - line: mapping.originalLine, - column: mapping.originalColumn - }); - if (original.source !== null) { - // Copy mapping - if (sourceRoot) { - mapping.source = util.relative(sourceRoot, original.source); - } else { - mapping.source = original.source; - } - mapping.originalLine = original.line; - mapping.originalColumn = original.column; - if (original.name !== null && mapping.name !== null) { - // Only use the identifier name if it's an identifier - // in both SourceMaps - mapping.name = original.name; - } - } - } - - var source = mapping.source; - if (source && !newSources.has(source)) { - newSources.add(source); - } - - var name = mapping.name; - if (name && !newNames.has(name)) { - newNames.add(name); - } - - }, this); - this._sources = newSources; - this._names = newNames; - - // Copy sourcesContents of applied map. - aSourceMapConsumer.sources.forEach(function (sourceFile) { - var content = aSourceMapConsumer.sourceContentFor(sourceFile); - if (content) { - if (sourceRoot) { - sourceFile = util.relative(sourceRoot, sourceFile); - } - this.setSourceContent(sourceFile, content); - } - }, this); - }; - - /** - * A mapping can have one of the three levels of data: - * - * 1. Just the generated position. - * 2. The Generated position, original position, and original source. - * 3. Generated and original position, original source, as well as a name - * token. - * - * To maintain consistency, we validate that any new mapping being added falls - * in to one of these categories. - */ - SourceMapGenerator.prototype._validateMapping = - function SourceMapGenerator_validateMapping(aGenerated, aOriginal, aSource, - aName) { - if (aGenerated && 'line' in aGenerated && 'column' in aGenerated - && aGenerated.line > 0 && aGenerated.column >= 0 - && !aOriginal && !aSource && !aName) { - // Case 1. - return; - } - else if (aGenerated && 'line' in aGenerated && 'column' in aGenerated - && aOriginal && 'line' in aOriginal && 'column' in aOriginal - && aGenerated.line > 0 && aGenerated.column >= 0 - && aOriginal.line > 0 && aOriginal.column >= 0 - && aSource) { - // Cases 2 and 3. - return; - } - else { - throw new Error('Invalid mapping: ' + JSON.stringify({ - generated: aGenerated, - source: aSource, - original: aOriginal, - name: aName - })); - } - }; - - /** - * Serialize the accumulated mappings in to the stream of base 64 VLQs - * specified by the source map format. - */ - SourceMapGenerator.prototype._serializeMappings = - function SourceMapGenerator_serializeMappings() { - var previousGeneratedColumn = 0; - var previousGeneratedLine = 1; - var previousOriginalColumn = 0; - var previousOriginalLine = 0; - var previousName = 0; - var previousSource = 0; - var result = ''; - var mapping; - - // The mappings must be guaranteed to be in sorted order before we start - // serializing them or else the generated line numbers (which are defined - // via the ';' separators) will be all messed up. Note: it might be more - // performant to maintain the sorting as we insert them, rather than as we - // serialize them, but the big O is the same either way. - this._mappings.sort(util.compareByGeneratedPositions); - - for (var i = 0, len = this._mappings.length; i < len; i++) { - mapping = this._mappings[i]; - - if (mapping.generatedLine !== previousGeneratedLine) { - previousGeneratedColumn = 0; - while (mapping.generatedLine !== previousGeneratedLine) { - result += ';'; - previousGeneratedLine++; - } - } - else { - if (i > 0) { - if (!util.compareByGeneratedPositions(mapping, this._mappings[i - 1])) { - continue; - } - result += ','; - } - } - - result += base64VLQ.encode(mapping.generatedColumn - - previousGeneratedColumn); - previousGeneratedColumn = mapping.generatedColumn; - - if (mapping.source) { - result += base64VLQ.encode(this._sources.indexOf(mapping.source) - - previousSource); - previousSource = this._sources.indexOf(mapping.source); - - // lines are stored 0-based in SourceMap spec version 3 - result += base64VLQ.encode(mapping.originalLine - 1 - - previousOriginalLine); - previousOriginalLine = mapping.originalLine - 1; - - result += base64VLQ.encode(mapping.originalColumn - - previousOriginalColumn); - previousOriginalColumn = mapping.originalColumn; - - if (mapping.name) { - result += base64VLQ.encode(this._names.indexOf(mapping.name) - - previousName); - previousName = this._names.indexOf(mapping.name); - } - } - } - - return result; - }; - - SourceMapGenerator.prototype._generateSourcesContent = - function SourceMapGenerator_generateSourcesContent(aSources, aSourceRoot) { - return aSources.map(function (source) { - if (!this._sourcesContents) { - return null; - } - if (aSourceRoot) { - source = util.relative(aSourceRoot, source); - } - var key = util.toSetString(source); - return Object.prototype.hasOwnProperty.call(this._sourcesContents, - key) - ? this._sourcesContents[key] - : null; - }, this); - }; - - /** - * Externalize the source map. - */ - SourceMapGenerator.prototype.toJSON = - function SourceMapGenerator_toJSON() { - var map = { - version: this._version, - file: this._file, - sources: this._sources.toArray(), - names: this._names.toArray(), - mappings: this._serializeMappings() - }; - if (this._sourceRoot) { - map.sourceRoot = this._sourceRoot; - } - if (this._sourcesContents) { - map.sourcesContent = this._generateSourcesContent(map.sources, map.sourceRoot); - } - - return map; - }; - - /** - * Render the source map being generated to a string. - */ - SourceMapGenerator.prototype.toString = - function SourceMapGenerator_toString() { - return JSON.stringify(this); - }; - - exports.SourceMapGenerator = SourceMapGenerator; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - * - * Based on the Base 64 VLQ implementation in Closure Compiler: - * https://code.google.com/p/closure-compiler/source/browse/trunk/src/com/google/debugging/sourcemap/Base64VLQ.java - * - * Copyright 2011 The Closure Compiler Authors. All rights reserved. - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following - * disclaimer in the documentation and/or other materials provided - * with the distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ -define('source-map/base64-vlq', ['require', 'exports', 'module' , 'source-map/base64'], function(require, exports, module) { - - var base64 = require('./base64'); - - // A single base 64 digit can contain 6 bits of data. For the base 64 variable - // length quantities we use in the source map spec, the first bit is the sign, - // the next four bits are the actual value, and the 6th bit is the - // continuation bit. The continuation bit tells us whether there are more - // digits in this value following this digit. - // - // Continuation - // | Sign - // | | - // V V - // 101011 - - var VLQ_BASE_SHIFT = 5; - - // binary: 100000 - var VLQ_BASE = 1 << VLQ_BASE_SHIFT; - - // binary: 011111 - var VLQ_BASE_MASK = VLQ_BASE - 1; - - // binary: 100000 - var VLQ_CONTINUATION_BIT = VLQ_BASE; - - /** - * Converts from a two-complement value to a value where the sign bit is - * is placed in the least significant bit. For example, as decimals: - * 1 becomes 2 (10 binary), -1 becomes 3 (11 binary) - * 2 becomes 4 (100 binary), -2 becomes 5 (101 binary) - */ - function toVLQSigned(aValue) { - return aValue < 0 - ? ((-aValue) << 1) + 1 - : (aValue << 1) + 0; - } - - /** - * Converts to a two-complement value from a value where the sign bit is - * is placed in the least significant bit. For example, as decimals: - * 2 (10 binary) becomes 1, 3 (11 binary) becomes -1 - * 4 (100 binary) becomes 2, 5 (101 binary) becomes -2 - */ - function fromVLQSigned(aValue) { - var isNegative = (aValue & 1) === 1; - var shifted = aValue >> 1; - return isNegative - ? -shifted - : shifted; - } - - /** - * Returns the base 64 VLQ encoded value. - */ - exports.encode = function base64VLQ_encode(aValue) { - var encoded = ""; - var digit; - - var vlq = toVLQSigned(aValue); - - do { - digit = vlq & VLQ_BASE_MASK; - vlq >>>= VLQ_BASE_SHIFT; - if (vlq > 0) { - // There are still more digits in this value, so we must make sure the - // continuation bit is marked. - digit |= VLQ_CONTINUATION_BIT; - } - encoded += base64.encode(digit); - } while (vlq > 0); - - return encoded; - }; - - /** - * Decodes the next base 64 VLQ value from the given string and returns the - * value and the rest of the string. - */ - exports.decode = function base64VLQ_decode(aStr) { - var i = 0; - var strLen = aStr.length; - var result = 0; - var shift = 0; - var continuation, digit; - - do { - if (i >= strLen) { - throw new Error("Expected more digits in base 64 VLQ value."); - } - digit = base64.decode(aStr.charAt(i++)); - continuation = !!(digit & VLQ_CONTINUATION_BIT); - digit &= VLQ_BASE_MASK; - result = result + (digit << shift); - shift += VLQ_BASE_SHIFT; - } while (continuation); - - return { - value: fromVLQSigned(result), - rest: aStr.slice(i) - }; - }; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/base64', ['require', 'exports', 'module' , ], function(require, exports, module) { - - var charToIntMap = {}; - var intToCharMap = {}; - - 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/' - .split('') - .forEach(function (ch, index) { - charToIntMap[ch] = index; - intToCharMap[index] = ch; - }); - - /** - * Encode an integer in the range of 0 to 63 to a single base 64 digit. - */ - exports.encode = function base64_encode(aNumber) { - if (aNumber in intToCharMap) { - return intToCharMap[aNumber]; - } - throw new TypeError("Must be between 0 and 63: " + aNumber); - }; - - /** - * Decode a single base 64 digit to an integer. - */ - exports.decode = function base64_decode(aChar) { - if (aChar in charToIntMap) { - return charToIntMap[aChar]; - } - throw new TypeError("Not a valid base 64 digit: " + aChar); - }; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/util', ['require', 'exports', 'module' , ], function(require, exports, module) { - - /** - * This is a helper function for getting values from parameter/options - * objects. - * - * @param args The object we are extracting values from - * @param name The name of the property we are getting. - * @param defaultValue An optional value to return if the property is missing - * from the object. If this is not specified and the property is missing, an - * error will be thrown. - */ - function getArg(aArgs, aName, aDefaultValue) { - if (aName in aArgs) { - return aArgs[aName]; - } else if (arguments.length === 3) { - return aDefaultValue; - } else { - throw new Error('"' + aName + '" is a required argument.'); - } - } - exports.getArg = getArg; - - var urlRegexp = /([\w+\-.]+):\/\/((\w+:\w+)@)?([\w.]+)?(:(\d+))?(\S+)?/; - var dataUrlRegexp = /^data:.+\,.+/; - - function urlParse(aUrl) { - var match = aUrl.match(urlRegexp); - if (!match) { - return null; - } - return { - scheme: match[1], - auth: match[3], - host: match[4], - port: match[6], - path: match[7] - }; - } - exports.urlParse = urlParse; - - function urlGenerate(aParsedUrl) { - var url = aParsedUrl.scheme + "://"; - if (aParsedUrl.auth) { - url += aParsedUrl.auth + "@" - } - if (aParsedUrl.host) { - url += aParsedUrl.host; - } - if (aParsedUrl.port) { - url += ":" + aParsedUrl.port - } - if (aParsedUrl.path) { - url += aParsedUrl.path; - } - return url; - } - exports.urlGenerate = urlGenerate; - - function join(aRoot, aPath) { - var url; - - if (aPath.match(urlRegexp) || aPath.match(dataUrlRegexp)) { - return aPath; - } - - if (aPath.charAt(0) === '/' && (url = urlParse(aRoot))) { - url.path = aPath; - return urlGenerate(url); - } - - return aRoot.replace(/\/$/, '') + '/' + aPath; - } - exports.join = join; - - /** - * Because behavior goes wacky when you set `__proto__` on objects, we - * have to prefix all the strings in our set with an arbitrary character. - * - * See https://github.com/mozilla/source-map/pull/31 and - * https://github.com/mozilla/source-map/issues/30 - * - * @param String aStr - */ - function toSetString(aStr) { - return '$' + aStr; - } - exports.toSetString = toSetString; - - function fromSetString(aStr) { - return aStr.substr(1); - } - exports.fromSetString = fromSetString; - - function relative(aRoot, aPath) { - aRoot = aRoot.replace(/\/$/, ''); - - var url = urlParse(aRoot); - if (aPath.charAt(0) == "/" && url && url.path == "/") { - return aPath.slice(1); - } - - return aPath.indexOf(aRoot + '/') === 0 - ? aPath.substr(aRoot.length + 1) - : aPath; - } - exports.relative = relative; - - function strcmp(aStr1, aStr2) { - var s1 = aStr1 || ""; - var s2 = aStr2 || ""; - return (s1 > s2) - (s1 < s2); - } - - /** - * Comparator between two mappings where the original positions are compared. - * - * Optionally pass in `true` as `onlyCompareGenerated` to consider two - * mappings with the same original source/line/column, but different generated - * line and column the same. Useful when searching for a mapping with a - * stubbed out mapping. - */ - function compareByOriginalPositions(mappingA, mappingB, onlyCompareOriginal) { - var cmp; - - cmp = strcmp(mappingA.source, mappingB.source); - if (cmp) { - return cmp; - } - - cmp = mappingA.originalLine - mappingB.originalLine; - if (cmp) { - return cmp; - } - - cmp = mappingA.originalColumn - mappingB.originalColumn; - if (cmp || onlyCompareOriginal) { - return cmp; - } - - cmp = strcmp(mappingA.name, mappingB.name); - if (cmp) { - return cmp; - } - - cmp = mappingA.generatedLine - mappingB.generatedLine; - if (cmp) { - return cmp; - } - - return mappingA.generatedColumn - mappingB.generatedColumn; - }; - exports.compareByOriginalPositions = compareByOriginalPositions; - - /** - * Comparator between two mappings where the generated positions are - * compared. - * - * Optionally pass in `true` as `onlyCompareGenerated` to consider two - * mappings with the same generated line and column, but different - * source/name/original line and column the same. Useful when searching for a - * mapping with a stubbed out mapping. - */ - function compareByGeneratedPositions(mappingA, mappingB, onlyCompareGenerated) { - var cmp; - - cmp = mappingA.generatedLine - mappingB.generatedLine; - if (cmp) { - return cmp; - } - - cmp = mappingA.generatedColumn - mappingB.generatedColumn; - if (cmp || onlyCompareGenerated) { - return cmp; - } - - cmp = strcmp(mappingA.source, mappingB.source); - if (cmp) { - return cmp; - } - - cmp = mappingA.originalLine - mappingB.originalLine; - if (cmp) { - return cmp; - } - - cmp = mappingA.originalColumn - mappingB.originalColumn; - if (cmp) { - return cmp; - } - - return strcmp(mappingA.name, mappingB.name); - }; - exports.compareByGeneratedPositions = compareByGeneratedPositions; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/array-set', ['require', 'exports', 'module' , 'source-map/util'], function(require, exports, module) { - - var util = require('./util'); - - /** - * A data structure which is a combination of an array and a set. Adding a new - * member is O(1), testing for membership is O(1), and finding the index of an - * element is O(1). Removing elements from the set is not supported. Only - * strings are supported for membership. - */ - function ArraySet() { - this._array = []; - this._set = {}; - } - - /** - * Static method for creating ArraySet instances from an existing array. - */ - ArraySet.fromArray = function ArraySet_fromArray(aArray, aAllowDuplicates) { - var set = new ArraySet(); - for (var i = 0, len = aArray.length; i < len; i++) { - set.add(aArray[i], aAllowDuplicates); - } - return set; - }; - - /** - * Add the given string to this set. - * - * @param String aStr - */ - ArraySet.prototype.add = function ArraySet_add(aStr, aAllowDuplicates) { - var isDuplicate = this.has(aStr); - var idx = this._array.length; - if (!isDuplicate || aAllowDuplicates) { - this._array.push(aStr); - } - if (!isDuplicate) { - this._set[util.toSetString(aStr)] = idx; - } - }; - - /** - * Is the given string a member of this set? - * - * @param String aStr - */ - ArraySet.prototype.has = function ArraySet_has(aStr) { - return Object.prototype.hasOwnProperty.call(this._set, - util.toSetString(aStr)); - }; - - /** - * What is the index of the given string in the array? - * - * @param String aStr - */ - ArraySet.prototype.indexOf = function ArraySet_indexOf(aStr) { - if (this.has(aStr)) { - return this._set[util.toSetString(aStr)]; - } - throw new Error('"' + aStr + '" is not in the set.'); - }; - - /** - * What is the element at the given index? - * - * @param Number aIdx - */ - ArraySet.prototype.at = function ArraySet_at(aIdx) { - if (aIdx >= 0 && aIdx < this._array.length) { - return this._array[aIdx]; - } - throw new Error('No element indexed by ' + aIdx); - }; - - /** - * Returns the array representation of this set (which has the proper indices - * indicated by indexOf). Note that this is a copy of the internal array used - * for storing the members so that no one can mess with internal state. - */ - ArraySet.prototype.toArray = function ArraySet_toArray() { - return this._array.slice(); - }; - - exports.ArraySet = ArraySet; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/source-map-consumer', ['require', 'exports', 'module' , 'source-map/util', 'source-map/binary-search', 'source-map/array-set', 'source-map/base64-vlq'], function(require, exports, module) { - - var util = require('./util'); - var binarySearch = require('./binary-search'); - var ArraySet = require('./array-set').ArraySet; - var base64VLQ = require('./base64-vlq'); - - /** - * A SourceMapConsumer instance represents a parsed source map which we can - * query for information about the original file positions by giving it a file - * position in the generated source. - * - * The only parameter is the raw source map (either as a JSON string, or - * already parsed to an object). According to the spec, source maps have the - * following attributes: - * - * - version: Which version of the source map spec this map is following. - * - sources: An array of URLs to the original source files. - * - names: An array of identifiers which can be referrenced by individual mappings. - * - sourceRoot: Optional. The URL root from which all sources are relative. - * - sourcesContent: Optional. An array of contents of the original source files. - * - mappings: A string of base64 VLQs which contain the actual mappings. - * - file: The generated file this source map is associated with. - * - * Here is an example source map, taken from the source map spec[0]: - * - * { - * version : 3, - * file: "out.js", - * sourceRoot : "", - * sources: ["foo.js", "bar.js"], - * names: ["src", "maps", "are", "fun"], - * mappings: "AA,AB;;ABCDE;" - * } - * - * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit?pli=1# - */ - function SourceMapConsumer(aSourceMap) { - var sourceMap = aSourceMap; - if (typeof aSourceMap === 'string') { - sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, '')); - } - - var version = util.getArg(sourceMap, 'version'); - var sources = util.getArg(sourceMap, 'sources'); - // Sass 3.3 leaves out the 'names' array, so we deviate from the spec (which - // requires the array) to play nice here. - var names = util.getArg(sourceMap, 'names', []); - var sourceRoot = util.getArg(sourceMap, 'sourceRoot', null); - var sourcesContent = util.getArg(sourceMap, 'sourcesContent', null); - var mappings = util.getArg(sourceMap, 'mappings'); - var file = util.getArg(sourceMap, 'file', null); - - // Once again, Sass deviates from the spec and supplies the version as a - // string rather than a number, so we use loose equality checking here. - if (version != this._version) { - throw new Error('Unsupported version: ' + version); - } - - // Pass `true` below to allow duplicate names and sources. While source maps - // are intended to be compressed and deduplicated, the TypeScript compiler - // sometimes generates source maps with duplicates in them. See Github issue - // #72 and bugzil.la/889492. - this._names = ArraySet.fromArray(names, true); - this._sources = ArraySet.fromArray(sources, true); - - this.sourceRoot = sourceRoot; - this.sourcesContent = sourcesContent; - this._mappings = mappings; - this.file = file; - } - - /** - * Create a SourceMapConsumer from a SourceMapGenerator. - * - * @param SourceMapGenerator aSourceMap - * The source map that will be consumed. - * @returns SourceMapConsumer - */ - SourceMapConsumer.fromSourceMap = - function SourceMapConsumer_fromSourceMap(aSourceMap) { - var smc = Object.create(SourceMapConsumer.prototype); - - smc._names = ArraySet.fromArray(aSourceMap._names.toArray(), true); - smc._sources = ArraySet.fromArray(aSourceMap._sources.toArray(), true); - smc.sourceRoot = aSourceMap._sourceRoot; - smc.sourcesContent = aSourceMap._generateSourcesContent(smc._sources.toArray(), - smc.sourceRoot); - smc.file = aSourceMap._file; - - smc.__generatedMappings = aSourceMap._mappings.slice() - .sort(util.compareByGeneratedPositions); - smc.__originalMappings = aSourceMap._mappings.slice() - .sort(util.compareByOriginalPositions); - - return smc; - }; - - /** - * The version of the source mapping spec that we are consuming. - */ - SourceMapConsumer.prototype._version = 3; - - /** - * The list of original sources. - */ - Object.defineProperty(SourceMapConsumer.prototype, 'sources', { - get: function () { - return this._sources.toArray().map(function (s) { - return this.sourceRoot ? util.join(this.sourceRoot, s) : s; - }, this); - } - }); - - // `__generatedMappings` and `__originalMappings` are arrays that hold the - // parsed mapping coordinates from the source map's "mappings" attribute. They - // are lazily instantiated, accessed via the `_generatedMappings` and - // `_originalMappings` getters respectively, and we only parse the mappings - // and create these arrays once queried for a source location. We jump through - // these hoops because there can be many thousands of mappings, and parsing - // them is expensive, so we only want to do it if we must. - // - // Each object in the arrays is of the form: - // - // { - // generatedLine: The line number in the generated code, - // generatedColumn: The column number in the generated code, - // source: The path to the original source file that generated this - // chunk of code, - // originalLine: The line number in the original source that - // corresponds to this chunk of generated code, - // originalColumn: The column number in the original source that - // corresponds to this chunk of generated code, - // name: The name of the original symbol which generated this chunk of - // code. - // } - // - // All properties except for `generatedLine` and `generatedColumn` can be - // `null`. - // - // `_generatedMappings` is ordered by the generated positions. - // - // `_originalMappings` is ordered by the original positions. - - SourceMapConsumer.prototype.__generatedMappings = null; - Object.defineProperty(SourceMapConsumer.prototype, '_generatedMappings', { - get: function () { - if (!this.__generatedMappings) { - this.__generatedMappings = []; - this.__originalMappings = []; - this._parseMappings(this._mappings, this.sourceRoot); - } - - return this.__generatedMappings; - } - }); - - SourceMapConsumer.prototype.__originalMappings = null; - Object.defineProperty(SourceMapConsumer.prototype, '_originalMappings', { - get: function () { - if (!this.__originalMappings) { - this.__generatedMappings = []; - this.__originalMappings = []; - this._parseMappings(this._mappings, this.sourceRoot); - } - - return this.__originalMappings; - } - }); - - /** - * Parse the mappings in a string in to a data structure which we can easily - * query (the ordered arrays in the `this.__generatedMappings` and - * `this.__originalMappings` properties). - */ - SourceMapConsumer.prototype._parseMappings = - function SourceMapConsumer_parseMappings(aStr, aSourceRoot) { - var generatedLine = 1; - var previousGeneratedColumn = 0; - var previousOriginalLine = 0; - var previousOriginalColumn = 0; - var previousSource = 0; - var previousName = 0; - var mappingSeparator = /^[,;]/; - var str = aStr; - var mapping; - var temp; - - while (str.length > 0) { - if (str.charAt(0) === ';') { - generatedLine++; - str = str.slice(1); - previousGeneratedColumn = 0; - } - else if (str.charAt(0) === ',') { - str = str.slice(1); - } - else { - mapping = {}; - mapping.generatedLine = generatedLine; - - // Generated column. - temp = base64VLQ.decode(str); - mapping.generatedColumn = previousGeneratedColumn + temp.value; - previousGeneratedColumn = mapping.generatedColumn; - str = temp.rest; - - if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) { - // Original source. - temp = base64VLQ.decode(str); - mapping.source = this._sources.at(previousSource + temp.value); - previousSource += temp.value; - str = temp.rest; - if (str.length === 0 || mappingSeparator.test(str.charAt(0))) { - throw new Error('Found a source, but no line and column'); - } - - // Original line. - temp = base64VLQ.decode(str); - mapping.originalLine = previousOriginalLine + temp.value; - previousOriginalLine = mapping.originalLine; - // Lines are stored 0-based - mapping.originalLine += 1; - str = temp.rest; - if (str.length === 0 || mappingSeparator.test(str.charAt(0))) { - throw new Error('Found a source and line, but no column'); - } - - // Original column. - temp = base64VLQ.decode(str); - mapping.originalColumn = previousOriginalColumn + temp.value; - previousOriginalColumn = mapping.originalColumn; - str = temp.rest; - - if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) { - // Original name. - temp = base64VLQ.decode(str); - mapping.name = this._names.at(previousName + temp.value); - previousName += temp.value; - str = temp.rest; - } - } - - this.__generatedMappings.push(mapping); - if (typeof mapping.originalLine === 'number') { - this.__originalMappings.push(mapping); - } - } - } - - this.__originalMappings.sort(util.compareByOriginalPositions); - }; - - /** - * Find the mapping that best matches the hypothetical "needle" mapping that - * we are searching for in the given "haystack" of mappings. - */ - SourceMapConsumer.prototype._findMapping = - function SourceMapConsumer_findMapping(aNeedle, aMappings, aLineName, - aColumnName, aComparator) { - // To return the position we are searching for, we must first find the - // mapping for the given position and then return the opposite position it - // points to. Because the mappings are sorted, we can use binary search to - // find the best mapping. - - if (aNeedle[aLineName] <= 0) { - throw new TypeError('Line must be greater than or equal to 1, got ' - + aNeedle[aLineName]); - } - if (aNeedle[aColumnName] < 0) { - throw new TypeError('Column must be greater than or equal to 0, got ' - + aNeedle[aColumnName]); - } - - return binarySearch.search(aNeedle, aMappings, aComparator); - }; - - /** - * Returns the original source, line, and column information for the generated - * source's line and column positions provided. The only argument is an object - * with the following properties: - * - * - line: The line number in the generated source. - * - column: The column number in the generated source. - * - * and an object is returned with the following properties: - * - * - source: The original source file, or null. - * - line: The line number in the original source, or null. - * - column: The column number in the original source, or null. - * - name: The original identifier, or null. - */ - SourceMapConsumer.prototype.originalPositionFor = - function SourceMapConsumer_originalPositionFor(aArgs) { - var needle = { - generatedLine: util.getArg(aArgs, 'line'), - generatedColumn: util.getArg(aArgs, 'column') - }; - - var mapping = this._findMapping(needle, - this._generatedMappings, - "generatedLine", - "generatedColumn", - util.compareByGeneratedPositions); - - if (mapping) { - var source = util.getArg(mapping, 'source', null); - if (source && this.sourceRoot) { - source = util.join(this.sourceRoot, source); - } - return { - source: source, - line: util.getArg(mapping, 'originalLine', null), - column: util.getArg(mapping, 'originalColumn', null), - name: util.getArg(mapping, 'name', null) - }; - } - - return { - source: null, - line: null, - column: null, - name: null - }; - }; - - /** - * Returns the original source content. The only argument is the url of the - * original source file. Returns null if no original source content is - * availible. - */ - SourceMapConsumer.prototype.sourceContentFor = - function SourceMapConsumer_sourceContentFor(aSource) { - if (!this.sourcesContent) { - return null; - } - - if (this.sourceRoot) { - aSource = util.relative(this.sourceRoot, aSource); - } - - if (this._sources.has(aSource)) { - return this.sourcesContent[this._sources.indexOf(aSource)]; - } - - var url; - if (this.sourceRoot - && (url = util.urlParse(this.sourceRoot))) { - // XXX: file:// URIs and absolute paths lead to unexpected behavior for - // many users. We can help them out when they expect file:// URIs to - // behave like it would if they were running a local HTTP server. See - // https://bugzilla.mozilla.org/show_bug.cgi?id=885597. - var fileUriAbsPath = aSource.replace(/^file:\/\//, ""); - if (url.scheme == "file" - && this._sources.has(fileUriAbsPath)) { - return this.sourcesContent[this._sources.indexOf(fileUriAbsPath)] - } - - if ((!url.path || url.path == "/") - && this._sources.has("/" + aSource)) { - return this.sourcesContent[this._sources.indexOf("/" + aSource)]; - } - } - - throw new Error('"' + aSource + '" is not in the SourceMap.'); - }; - - /** - * Returns the generated line and column information for the original source, - * line, and column positions provided. The only argument is an object with - * the following properties: - * - * - source: The filename of the original source. - * - line: The line number in the original source. - * - column: The column number in the original source. - * - * and an object is returned with the following properties: - * - * - line: The line number in the generated source, or null. - * - column: The column number in the generated source, or null. - */ - SourceMapConsumer.prototype.generatedPositionFor = - function SourceMapConsumer_generatedPositionFor(aArgs) { - var needle = { - source: util.getArg(aArgs, 'source'), - originalLine: util.getArg(aArgs, 'line'), - originalColumn: util.getArg(aArgs, 'column') - }; - - if (this.sourceRoot) { - needle.source = util.relative(this.sourceRoot, needle.source); - } - - var mapping = this._findMapping(needle, - this._originalMappings, - "originalLine", - "originalColumn", - util.compareByOriginalPositions); - - if (mapping) { - return { - line: util.getArg(mapping, 'generatedLine', null), - column: util.getArg(mapping, 'generatedColumn', null) - }; - } - - return { - line: null, - column: null - }; - }; - - SourceMapConsumer.GENERATED_ORDER = 1; - SourceMapConsumer.ORIGINAL_ORDER = 2; - - /** - * Iterate over each mapping between an original source/line/column and a - * generated line/column in this source map. - * - * @param Function aCallback - * The function that is called with each mapping. - * @param Object aContext - * Optional. If specified, this object will be the value of `this` every - * time that `aCallback` is called. - * @param aOrder - * Either `SourceMapConsumer.GENERATED_ORDER` or - * `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to - * iterate over the mappings sorted by the generated file's line/column - * order or the original's source/line/column order, respectively. Defaults to - * `SourceMapConsumer.GENERATED_ORDER`. - */ - SourceMapConsumer.prototype.eachMapping = - function SourceMapConsumer_eachMapping(aCallback, aContext, aOrder) { - var context = aContext || null; - var order = aOrder || SourceMapConsumer.GENERATED_ORDER; - - var mappings; - switch (order) { - case SourceMapConsumer.GENERATED_ORDER: - mappings = this._generatedMappings; - break; - case SourceMapConsumer.ORIGINAL_ORDER: - mappings = this._originalMappings; - break; - default: - throw new Error("Unknown order of iteration."); - } - - var sourceRoot = this.sourceRoot; - mappings.map(function (mapping) { - var source = mapping.source; - if (source && sourceRoot) { - source = util.join(sourceRoot, source); - } - return { - source: source, - generatedLine: mapping.generatedLine, - generatedColumn: mapping.generatedColumn, - originalLine: mapping.originalLine, - originalColumn: mapping.originalColumn, - name: mapping.name - }; - }).forEach(aCallback, context); - }; - - exports.SourceMapConsumer = SourceMapConsumer; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/binary-search', ['require', 'exports', 'module' , ], function(require, exports, module) { - - /** - * Recursive implementation of binary search. - * - * @param aLow Indices here and lower do not contain the needle. - * @param aHigh Indices here and higher do not contain the needle. - * @param aNeedle The element being searched for. - * @param aHaystack The non-empty array being searched. - * @param aCompare Function which takes two elements and returns -1, 0, or 1. - */ - function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare) { - // This function terminates when one of the following is true: - // - // 1. We find the exact element we are looking for. - // - // 2. We did not find the exact element, but we can return the next - // closest element that is less than that element. - // - // 3. We did not find the exact element, and there is no next-closest - // element which is less than the one we are searching for, so we - // return null. - var mid = Math.floor((aHigh - aLow) / 2) + aLow; - var cmp = aCompare(aNeedle, aHaystack[mid], true); - if (cmp === 0) { - // Found the element we are looking for. - return aHaystack[mid]; - } - else if (cmp > 0) { - // aHaystack[mid] is greater than our needle. - if (aHigh - mid > 1) { - // The element is in the upper half. - return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare); - } - // We did not find an exact match, return the next closest one - // (termination case 2). - return aHaystack[mid]; - } - else { - // aHaystack[mid] is less than our needle. - if (mid - aLow > 1) { - // The element is in the lower half. - return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare); - } - // The exact needle element was not found in this haystack. Determine if - // we are in termination case (2) or (3) and return the appropriate thing. - return aLow < 0 - ? null - : aHaystack[aLow]; - } - } - - /** - * This is an implementation of binary search which will always try and return - * the next lowest value checked if there is no exact hit. This is because - * mappings between original and generated line/col pairs are single points, - * and there is an implicit region between each of them, so a miss just means - * that you aren't on the very start of a region. - * - * @param aNeedle The element you are looking for. - * @param aHaystack The array that is being searched. - * @param aCompare A function which takes the needle and an element in the - * array and returns -1, 0, or 1 depending on whether the needle is less - * than, equal to, or greater than the element, respectively. - */ - exports.search = function search(aNeedle, aHaystack, aCompare) { - return aHaystack.length > 0 - ? recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack, aCompare) - : null; - }; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/* - * Copyright 2011 Mozilla Foundation and contributors - * Licensed under the New BSD license. See LICENSE or: - * http://opensource.org/licenses/BSD-3-Clause - */ -define('source-map/source-node', ['require', 'exports', 'module' , 'source-map/source-map-generator', 'source-map/util'], function(require, exports, module) { - - var SourceMapGenerator = require('./source-map-generator').SourceMapGenerator; - var util = require('./util'); - - /** - * SourceNodes provide a way to abstract over interpolating/concatenating - * snippets of generated JavaScript source code while maintaining the line and - * column information associated with the original source code. - * - * @param aLine The original line number. - * @param aColumn The original column number. - * @param aSource The original source's filename. - * @param aChunks Optional. An array of strings which are snippets of - * generated JS, or other SourceNodes. - * @param aName The original identifier. - */ - function SourceNode(aLine, aColumn, aSource, aChunks, aName) { - this.children = []; - this.sourceContents = {}; - this.line = aLine === undefined ? null : aLine; - this.column = aColumn === undefined ? null : aColumn; - this.source = aSource === undefined ? null : aSource; - this.name = aName === undefined ? null : aName; - if (aChunks != null) this.add(aChunks); - } - - /** - * Creates a SourceNode from generated code and a SourceMapConsumer. - * - * @param aGeneratedCode The generated code - * @param aSourceMapConsumer The SourceMap for the generated code - */ - SourceNode.fromStringWithSourceMap = - function SourceNode_fromStringWithSourceMap(aGeneratedCode, aSourceMapConsumer) { - // The SourceNode we want to fill with the generated code - // and the SourceMap - var node = new SourceNode(); - - // The generated code - // Processed fragments are removed from this array. - var remainingLines = aGeneratedCode.split('\n'); - - // We need to remember the position of "remainingLines" - var lastGeneratedLine = 1, lastGeneratedColumn = 0; - - // The generate SourceNodes we need a code range. - // To extract it current and last mapping is used. - // Here we store the last mapping. - var lastMapping = null; - - aSourceMapConsumer.eachMapping(function (mapping) { - if (lastMapping === null) { - // We add the generated code until the first mapping - // to the SourceNode without any mapping. - // Each line is added as separate string. - while (lastGeneratedLine < mapping.generatedLine) { - node.add(remainingLines.shift() + "\n"); - lastGeneratedLine++; - } - if (lastGeneratedColumn < mapping.generatedColumn) { - var nextLine = remainingLines[0]; - node.add(nextLine.substr(0, mapping.generatedColumn)); - remainingLines[0] = nextLine.substr(mapping.generatedColumn); - lastGeneratedColumn = mapping.generatedColumn; - } - } else { - // We add the code from "lastMapping" to "mapping": - // First check if there is a new line in between. - if (lastGeneratedLine < mapping.generatedLine) { - var code = ""; - // Associate full lines with "lastMapping" - do { - code += remainingLines.shift() + "\n"; - lastGeneratedLine++; - lastGeneratedColumn = 0; - } while (lastGeneratedLine < mapping.generatedLine); - // When we reached the correct line, we add code until we - // reach the correct column too. - if (lastGeneratedColumn < mapping.generatedColumn) { - var nextLine = remainingLines[0]; - code += nextLine.substr(0, mapping.generatedColumn); - remainingLines[0] = nextLine.substr(mapping.generatedColumn); - lastGeneratedColumn = mapping.generatedColumn; - } - // Create the SourceNode. - addMappingWithCode(lastMapping, code); - } else { - // There is no new line in between. - // Associate the code between "lastGeneratedColumn" and - // "mapping.generatedColumn" with "lastMapping" - var nextLine = remainingLines[0]; - var code = nextLine.substr(0, mapping.generatedColumn - - lastGeneratedColumn); - remainingLines[0] = nextLine.substr(mapping.generatedColumn - - lastGeneratedColumn); - lastGeneratedColumn = mapping.generatedColumn; - addMappingWithCode(lastMapping, code); - } - } - lastMapping = mapping; - }, this); - // We have processed all mappings. - // Associate the remaining code in the current line with "lastMapping" - // and add the remaining lines without any mapping - addMappingWithCode(lastMapping, remainingLines.join("\n")); - - // Copy sourcesContent into SourceNode - aSourceMapConsumer.sources.forEach(function (sourceFile) { - var content = aSourceMapConsumer.sourceContentFor(sourceFile); - if (content) { - node.setSourceContent(sourceFile, content); - } - }); - - return node; - - function addMappingWithCode(mapping, code) { - if (mapping === null || mapping.source === undefined) { - node.add(code); - } else { - node.add(new SourceNode(mapping.originalLine, - mapping.originalColumn, - mapping.source, - code, - mapping.name)); - } - } - }; - - /** - * Add a chunk of generated JS to this source node. - * - * @param aChunk A string snippet of generated JS code, another instance of - * SourceNode, or an array where each member is one of those things. - */ - SourceNode.prototype.add = function SourceNode_add(aChunk) { - if (Array.isArray(aChunk)) { - aChunk.forEach(function (chunk) { - this.add(chunk); - }, this); - } - else if (aChunk instanceof SourceNode || typeof aChunk === "string") { - if (aChunk) { - this.children.push(aChunk); - } - } - else { - throw new TypeError( - "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk - ); - } - return this; - }; - - /** - * Add a chunk of generated JS to the beginning of this source node. - * - * @param aChunk A string snippet of generated JS code, another instance of - * SourceNode, or an array where each member is one of those things. - */ - SourceNode.prototype.prepend = function SourceNode_prepend(aChunk) { - if (Array.isArray(aChunk)) { - for (var i = aChunk.length-1; i >= 0; i--) { - this.prepend(aChunk[i]); - } - } - else if (aChunk instanceof SourceNode || typeof aChunk === "string") { - this.children.unshift(aChunk); - } - else { - throw new TypeError( - "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk - ); - } - return this; - }; - - /** - * Walk over the tree of JS snippets in this node and its children. The - * walking function is called once for each snippet of JS and is passed that - * snippet and the its original associated source's line/column location. - * - * @param aFn The traversal function. - */ - SourceNode.prototype.walk = function SourceNode_walk(aFn) { - var chunk; - for (var i = 0, len = this.children.length; i < len; i++) { - chunk = this.children[i]; - if (chunk instanceof SourceNode) { - chunk.walk(aFn); - } - else { - if (chunk !== '') { - aFn(chunk, { source: this.source, - line: this.line, - column: this.column, - name: this.name }); - } - } - } - }; - - /** - * Like `String.prototype.join` except for SourceNodes. Inserts `aStr` between - * each of `this.children`. - * - * @param aSep The separator. - */ - SourceNode.prototype.join = function SourceNode_join(aSep) { - var newChildren; - var i; - var len = this.children.length; - if (len > 0) { - newChildren = []; - for (i = 0; i < len-1; i++) { - newChildren.push(this.children[i]); - newChildren.push(aSep); - } - newChildren.push(this.children[i]); - this.children = newChildren; - } - return this; - }; - - /** - * Call String.prototype.replace on the very right-most source snippet. Useful - * for trimming whitespace from the end of a source node, etc. - * - * @param aPattern The pattern to replace. - * @param aReplacement The thing to replace the pattern with. - */ - SourceNode.prototype.replaceRight = function SourceNode_replaceRight(aPattern, aReplacement) { - var lastChild = this.children[this.children.length - 1]; - if (lastChild instanceof SourceNode) { - lastChild.replaceRight(aPattern, aReplacement); - } - else if (typeof lastChild === 'string') { - this.children[this.children.length - 1] = lastChild.replace(aPattern, aReplacement); - } - else { - this.children.push(''.replace(aPattern, aReplacement)); - } - return this; - }; - - /** - * Set the source content for a source file. This will be added to the SourceMapGenerator - * in the sourcesContent field. - * - * @param aSourceFile The filename of the source file - * @param aSourceContent The content of the source file - */ - SourceNode.prototype.setSourceContent = - function SourceNode_setSourceContent(aSourceFile, aSourceContent) { - this.sourceContents[util.toSetString(aSourceFile)] = aSourceContent; - }; - - /** - * Walk over the tree of SourceNodes. The walking function is called for each - * source file content and is passed the filename and source content. - * - * @param aFn The traversal function. - */ - SourceNode.prototype.walkSourceContents = - function SourceNode_walkSourceContents(aFn) { - for (var i = 0, len = this.children.length; i < len; i++) { - if (this.children[i] instanceof SourceNode) { - this.children[i].walkSourceContents(aFn); - } - } - - var sources = Object.keys(this.sourceContents); - for (var i = 0, len = sources.length; i < len; i++) { - aFn(util.fromSetString(sources[i]), this.sourceContents[sources[i]]); - } - }; - - /** - * Return the string representation of this source node. Walks over the tree - * and concatenates all the various snippets together to one string. - */ - SourceNode.prototype.toString = function SourceNode_toString() { - var str = ""; - this.walk(function (chunk) { - str += chunk; - }); - return str; - }; - - /** - * Returns the string representation of this source node along with a source - * map. - */ - SourceNode.prototype.toStringWithSourceMap = function SourceNode_toStringWithSourceMap(aArgs) { - var generated = { - code: "", - line: 1, - column: 0 - }; - var map = new SourceMapGenerator(aArgs); - var sourceMappingActive = false; - var lastOriginalSource = null; - var lastOriginalLine = null; - var lastOriginalColumn = null; - var lastOriginalName = null; - this.walk(function (chunk, original) { - generated.code += chunk; - if (original.source !== null - && original.line !== null - && original.column !== null) { - if(lastOriginalSource !== original.source - || lastOriginalLine !== original.line - || lastOriginalColumn !== original.column - || lastOriginalName !== original.name) { - map.addMapping({ - source: original.source, - original: { - line: original.line, - column: original.column - }, - generated: { - line: generated.line, - column: generated.column - }, - name: original.name - }); - } - lastOriginalSource = original.source; - lastOriginalLine = original.line; - lastOriginalColumn = original.column; - lastOriginalName = original.name; - sourceMappingActive = true; - } else if (sourceMappingActive) { - map.addMapping({ - generated: { - line: generated.line, - column: generated.column - } - }); - lastOriginalSource = null; - sourceMappingActive = false; - } - chunk.split('').forEach(function (ch) { - if (ch === '\n') { - generated.line++; - generated.column = 0; - } else { - generated.column++; - } - }); - }); - this.walkSourceContents(function (sourceFile, sourceContent) { - map.setSourceContent(sourceFile, sourceContent); - }); - - return { code: generated.code, map: map }; - }; - - exports.SourceNode = SourceNode; - -}); -/* -*- Mode: js; js-indent-level: 2; -*- */ -/////////////////////////////////////////////////////////////////////////////// - -this.sourceMap = { - SourceMapConsumer: require('source-map/source-map-consumer').SourceMapConsumer, - SourceMapGenerator: require('source-map/source-map-generator').SourceMapGenerator, - SourceNode: require('source-map/source-node').SourceNode -}; - -// footer to wrap "source-map" module - return this.sourceMap; - }(); -})(); \ No newline at end of file diff --git a/awx/ui/static/lib/less/dist/lessc-rhino-1.6.2.js b/awx/ui/static/lib/less/dist/lessc-rhino-1.6.2.js deleted file mode 100644 index 73dd4d25e3..0000000000 --- a/awx/ui/static/lib/less/dist/lessc-rhino-1.6.2.js +++ /dev/null @@ -1,449 +0,0 @@ -/* LESS.js v1.6.2 RHINO | Copyright (c) 2009-2014, Alexis Sellier */ - -/*global name:true, less, loadStyleSheet, os */ - -function formatError(ctx, options) { - options = options || {}; - - var message = ""; - var extract = ctx.extract; - var error = []; - -// var stylize = options.color ? require('./lessc_helper').stylize : function (str) { return str; }; - var stylize = function (str) { return str; }; - - // only output a stack if it isn't a less error - if (ctx.stack && !ctx.type) { return stylize(ctx.stack, 'red'); } - - if (!ctx.hasOwnProperty('index') || !extract) { - return ctx.stack || ctx.message; - } - - if (typeof(extract[0]) === 'string') { - error.push(stylize((ctx.line - 1) + ' ' + extract[0], 'grey')); - } - - if (typeof(extract[1]) === 'string') { - var errorTxt = ctx.line + ' '; - if (extract[1]) { - errorTxt += extract[1].slice(0, ctx.column) + - stylize(stylize(stylize(extract[1][ctx.column], 'bold') + - extract[1].slice(ctx.column + 1), 'red'), 'inverse'); - } - error.push(errorTxt); - } - - if (typeof(extract[2]) === 'string') { - error.push(stylize((ctx.line + 1) + ' ' + extract[2], 'grey')); - } - error = error.join('\n') + stylize('', 'reset') + '\n'; - - message += stylize(ctx.type + 'Error: ' + ctx.message, 'red'); - if (ctx.filename) { - message += stylize(' in ', 'red') + ctx.filename + - stylize(' on line ' + ctx.line + ', column ' + (ctx.column + 1) + ':', 'grey'); - } - - message += '\n' + error; - - if (ctx.callLine) { - message += stylize('from ', 'red') + (ctx.filename || '') + '/n'; - message += stylize(ctx.callLine, 'grey') + ' ' + ctx.callExtract + '/n'; - } - - return message; -} - -function writeError(ctx, options) { - options = options || {}; - if (options.silent) { return; } - print(formatError(ctx, options)); -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - var endOfPath = Math.max(name.lastIndexOf('/'), name.lastIndexOf('\\')), - sheetName = name.slice(0, endOfPath + 1) + sheet.href, - contents = sheet.contents || {}, - input = readFile(sheetName); - - input = input.replace(/^\xEF\xBB\xBF/, ''); - - contents[sheetName] = input; - - var parser = new less.Parser({ - paths: [sheet.href.replace(/[\w\.-]+$/, '')], - contents: contents - }); - parser.parse(input, function (e, root) { - if (e) { - return writeError(e); - } - try { - callback(e, root, input, sheet, { local: false, lastModified: 0, remaining: remaining }, sheetName); - } catch(e) { - writeError(e); - } - }); -} - -less.Parser.fileLoader = function (file, currentFileInfo, callback, env) { - - var href = file; - if (currentFileInfo && currentFileInfo.currentDirectory && !/^\//.test(file)) { - href = less.modules.path.join(currentFileInfo.currentDirectory, file); - } - - var path = less.modules.path.dirname(href); - - var newFileInfo = { - currentDirectory: path + '/', - filename: href - }; - - if (currentFileInfo) { - newFileInfo.entryPath = currentFileInfo.entryPath; - newFileInfo.rootpath = currentFileInfo.rootpath; - newFileInfo.rootFilename = currentFileInfo.rootFilename; - newFileInfo.relativeUrls = currentFileInfo.relativeUrls; - } else { - newFileInfo.entryPath = path; - newFileInfo.rootpath = less.rootpath || path; - newFileInfo.rootFilename = href; - newFileInfo.relativeUrls = env.relativeUrls; - } - - var j = file.lastIndexOf('/'); - if(newFileInfo.relativeUrls && !/^(?:[a-z-]+:|\/)/.test(file) && j != -1) { - var relativeSubDirectory = file.slice(0, j+1); - newFileInfo.rootpath = newFileInfo.rootpath + relativeSubDirectory; // append (sub|sup) directory path of imported file - } - newFileInfo.currentDirectory = path; - newFileInfo.filename = href; - - var data = null; - try { - data = readFile(href); - } catch (e) { - callback({ type: 'File', message: "'" + less.modules.path.basename(href) + "' wasn't found" }); - return; - } - - try { - callback(null, data, href, newFileInfo, { lastModified: 0 }); - } catch (e) { - callback(e, null, href); - } -}; - - -function writeFile(filename, content) { - var fstream = new java.io.FileWriter(filename); - var out = new java.io.BufferedWriter(fstream); - out.write(content); - out.close(); -} - -// Command line integration via Rhino -(function (args) { - - var options = { - depends: false, - compress: false, - cleancss: false, - max_line_len: -1, - optimization: 1, - silent: false, - verbose: false, - lint: false, - paths: [], - color: true, - strictImports: false, - rootpath: '', - relativeUrls: false, - ieCompat: true, - strictMath: false, - strictUnits: false - }; - var continueProcessing = true, - currentErrorcode; - - var checkArgFunc = function(arg, option) { - if (!option) { - print(arg + " option requires a parameter"); - continueProcessing = false; - return false; - } - return true; - }; - - var checkBooleanArg = function(arg) { - var onOff = /^((on|t|true|y|yes)|(off|f|false|n|no))$/i.exec(arg); - if (!onOff) { - print(" unable to parse "+arg+" as a boolean. use one of on/t/true/y/yes/off/f/false/n/no"); - continueProcessing = false; - return false; - } - return Boolean(onOff[2]); - }; - - var warningMessages = ""; - var sourceMapFileInline = false; - - args = args.filter(function (arg) { - var match = arg.match(/^-I(.+)$/); - - if (match) { - options.paths.push(match[1]); - return false; - } - - match = arg.match(/^--?([a-z][0-9a-z-]*)(?:=(.*))?$/i); - if (match) { arg = match[1]; } // was (?:=([^\s]*)), check! - else { return arg; } - - switch (arg) { - case 'v': - case 'version': - console.log("lessc " + less.version.join('.') + " (LESS Compiler) [JavaScript]"); - continueProcessing = false; - break; - case 'verbose': - options.verbose = true; - break; - case 's': - case 'silent': - options.silent = true; - break; - case 'l': - case 'lint': - options.lint = true; - break; - case 'strict-imports': - options.strictImports = true; - break; - case 'h': - case 'help': - //TODO -// require('../lib/less/lessc_helper').printUsage(); - continueProcessing = false; - break; - case 'x': - case 'compress': - options.compress = true; - break; - case 'M': - case 'depends': - options.depends = true; - break; - case 'yui-compress': - warningMessages += "yui-compress option has been removed. assuming clean-css."; - options.cleancss = true; - break; - case 'clean-css': - options.cleancss = true; - break; - case 'max-line-len': - if (checkArgFunc(arg, match[2])) { - options.maxLineLen = parseInt(match[2], 10); - if (options.maxLineLen <= 0) { - options.maxLineLen = -1; - } - } - break; - case 'no-color': - options.color = false; - break; - case 'no-ie-compat': - options.ieCompat = false; - break; - case 'no-js': - options.javascriptEnabled = false; - break; - case 'include-path': - if (checkArgFunc(arg, match[2])) { - options.paths = match[2].split(os.type().match(/Windows/) ? ';' : ':') - .map(function(p) { - if (p) { -// return path.resolve(process.cwd(), p); - return p; - } - }); - } - break; - case 'O0': options.optimization = 0; break; - case 'O1': options.optimization = 1; break; - case 'O2': options.optimization = 2; break; - case 'line-numbers': - if (checkArgFunc(arg, match[2])) { - options.dumpLineNumbers = match[2]; - } - break; - case 'source-map': - if (!match[2]) { - options.sourceMap = true; - } else { - options.sourceMap = match[2]; - } - break; - case 'source-map-rootpath': - if (checkArgFunc(arg, match[2])) { - options.sourceMapRootpath = match[2]; - } - break; - case 'source-map-basepath': - if (checkArgFunc(arg, match[2])) { - options.sourceMapBasepath = match[2]; - } - break; - case 'source-map-map-inline': - sourceMapFileInline = true; - options.sourceMap = true; - break; - case 'source-map-less-inline': - options.outputSourceFiles = true; - break; - case 'source-map-url': - if (checkArgFunc(arg, match[2])) { - options.sourceMapURL = match[2]; - } - break; - case 'source-map-output-map-file': - if (checkArgFunc(arg, match[2])) { - options.writeSourceMap = function(sourceMapContent) { - writeFile(match[2], sourceMapContent); - }; - } - break; - case 'rp': - case 'rootpath': - if (checkArgFunc(arg, match[2])) { - options.rootpath = match[2].replace(/\\/g, '/'); - } - break; - case "ru": - case "relative-urls": - options.relativeUrls = true; - break; - case "sm": - case "strict-math": - if (checkArgFunc(arg, match[2])) { - options.strictMath = checkBooleanArg(match[2]); - } - break; - case "su": - case "strict-units": - if (checkArgFunc(arg, match[2])) { - options.strictUnits = checkBooleanArg(match[2]); - } - break; - default: - console.log('invalid option ' + arg); - continueProcessing = false; - } - }); - - if (!continueProcessing) { - return; - } - - var name = args[0]; - if (name && name != '-') { -// name = path.resolve(process.cwd(), name); - } - var output = args[1]; - var outputbase = args[1]; - if (output) { - options.sourceMapOutputFilename = output; -// output = path.resolve(process.cwd(), output); - if (warningMessages) { - console.log(warningMessages); - } - } - -// options.sourceMapBasepath = process.cwd(); -// options.sourceMapBasepath = ''; - - if (options.sourceMap === true) { - console.log("output: " + output); - if (!output && !sourceMapFileInline) { - console.log("the sourcemap option only has an optional filename if the css filename is given"); - return; - } - options.sourceMapFullFilename = options.sourceMapOutputFilename + ".map"; - options.sourceMap = less.modules.path.basename(options.sourceMapFullFilename); - } else if (options.sourceMap) { - options.sourceMapOutputFilename = options.sourceMap; - } - - - if (!name) { - console.log("lessc: no inout files"); - console.log(""); - // TODO -// require('../lib/less/lessc_helper').printUsage(); - currentErrorcode = 1; - return; - } - -// var ensureDirectory = function (filepath) { -// var dir = path.dirname(filepath), -// cmd, -// existsSync = fs.existsSync || path.existsSync; -// if (!existsSync(dir)) { -// if (mkdirp === undefined) { -// try {mkdirp = require('mkdirp');} -// catch(e) { mkdirp = null; } -// } -// cmd = mkdirp && mkdirp.sync || fs.mkdirSync; -// cmd(dir); -// } -// }; - - if (options.depends) { - if (!outputbase) { - console.log("option --depends requires an output path to be specified"); - return; - } - console.log(outputbase + ": "); - } - - if (!name) { - console.log('No files present in the fileset'); - quit(1); - } - - var input = null; - try { - input = readFile(name, 'utf-8'); - - } catch (e) { - console.log('lesscss: couldn\'t open file ' + name); - quit(1); - } - - options.filename = name; - var result; - try { - var parser = new less.Parser(options); - parser.parse(input, function (e, root) { - if (e) { - writeError(e, options); - quit(1); - } else { - result = root.toCSS(options); - if (output) { - writeFile(output, result); - console.log("Written to " + output); - } else { - print(result); - } - quit(0); - } - }); - } - catch(e) { - writeError(e, options); - quit(1); - } - console.log("done"); -}(arguments)); diff --git a/awx/ui/static/lib/less/dist/lessc-rhino-1.6.3.js b/awx/ui/static/lib/less/dist/lessc-rhino-1.6.3.js deleted file mode 100644 index 7bb2224bb9..0000000000 --- a/awx/ui/static/lib/less/dist/lessc-rhino-1.6.3.js +++ /dev/null @@ -1,449 +0,0 @@ -/* LESS.js v1.6.3 RHINO | Copyright (c) 2009-2014, Alexis Sellier */ - -/*global name:true, less, loadStyleSheet, os */ - -function formatError(ctx, options) { - options = options || {}; - - var message = ""; - var extract = ctx.extract; - var error = []; - -// var stylize = options.color ? require('./lessc_helper').stylize : function (str) { return str; }; - var stylize = function (str) { return str; }; - - // only output a stack if it isn't a less error - if (ctx.stack && !ctx.type) { return stylize(ctx.stack, 'red'); } - - if (!ctx.hasOwnProperty('index') || !extract) { - return ctx.stack || ctx.message; - } - - if (typeof(extract[0]) === 'string') { - error.push(stylize((ctx.line - 1) + ' ' + extract[0], 'grey')); - } - - if (typeof(extract[1]) === 'string') { - var errorTxt = ctx.line + ' '; - if (extract[1]) { - errorTxt += extract[1].slice(0, ctx.column) + - stylize(stylize(stylize(extract[1][ctx.column], 'bold') + - extract[1].slice(ctx.column + 1), 'red'), 'inverse'); - } - error.push(errorTxt); - } - - if (typeof(extract[2]) === 'string') { - error.push(stylize((ctx.line + 1) + ' ' + extract[2], 'grey')); - } - error = error.join('\n') + stylize('', 'reset') + '\n'; - - message += stylize(ctx.type + 'Error: ' + ctx.message, 'red'); - if (ctx.filename) { - message += stylize(' in ', 'red') + ctx.filename + - stylize(' on line ' + ctx.line + ', column ' + (ctx.column + 1) + ':', 'grey'); - } - - message += '\n' + error; - - if (ctx.callLine) { - message += stylize('from ', 'red') + (ctx.filename || '') + '/n'; - message += stylize(ctx.callLine, 'grey') + ' ' + ctx.callExtract + '/n'; - } - - return message; -} - -function writeError(ctx, options) { - options = options || {}; - if (options.silent) { return; } - print(formatError(ctx, options)); -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - var endOfPath = Math.max(name.lastIndexOf('/'), name.lastIndexOf('\\')), - sheetName = name.slice(0, endOfPath + 1) + sheet.href, - contents = sheet.contents || {}, - input = readFile(sheetName); - - input = input.replace(/^\xEF\xBB\xBF/, ''); - - contents[sheetName] = input; - - var parser = new less.Parser({ - paths: [sheet.href.replace(/[\w\.-]+$/, '')], - contents: contents - }); - parser.parse(input, function (e, root) { - if (e) { - return writeError(e); - } - try { - callback(e, root, input, sheet, { local: false, lastModified: 0, remaining: remaining }, sheetName); - } catch(e) { - writeError(e); - } - }); -} - -less.Parser.fileLoader = function (file, currentFileInfo, callback, env) { - - var href = file; - if (currentFileInfo && currentFileInfo.currentDirectory && !/^\//.test(file)) { - href = less.modules.path.join(currentFileInfo.currentDirectory, file); - } - - var path = less.modules.path.dirname(href); - - var newFileInfo = { - currentDirectory: path + '/', - filename: href - }; - - if (currentFileInfo) { - newFileInfo.entryPath = currentFileInfo.entryPath; - newFileInfo.rootpath = currentFileInfo.rootpath; - newFileInfo.rootFilename = currentFileInfo.rootFilename; - newFileInfo.relativeUrls = currentFileInfo.relativeUrls; - } else { - newFileInfo.entryPath = path; - newFileInfo.rootpath = less.rootpath || path; - newFileInfo.rootFilename = href; - newFileInfo.relativeUrls = env.relativeUrls; - } - - var j = file.lastIndexOf('/'); - if(newFileInfo.relativeUrls && !/^(?:[a-z-]+:|\/)/.test(file) && j != -1) { - var relativeSubDirectory = file.slice(0, j+1); - newFileInfo.rootpath = newFileInfo.rootpath + relativeSubDirectory; // append (sub|sup) directory path of imported file - } - newFileInfo.currentDirectory = path; - newFileInfo.filename = href; - - var data = null; - try { - data = readFile(href); - } catch (e) { - callback({ type: 'File', message: "'" + less.modules.path.basename(href) + "' wasn't found" }); - return; - } - - try { - callback(null, data, href, newFileInfo, { lastModified: 0 }); - } catch (e) { - callback(e, null, href); - } -}; - - -function writeFile(filename, content) { - var fstream = new java.io.FileWriter(filename); - var out = new java.io.BufferedWriter(fstream); - out.write(content); - out.close(); -} - -// Command line integration via Rhino -(function (args) { - - var options = { - depends: false, - compress: false, - cleancss: false, - max_line_len: -1, - optimization: 1, - silent: false, - verbose: false, - lint: false, - paths: [], - color: true, - strictImports: false, - rootpath: '', - relativeUrls: false, - ieCompat: true, - strictMath: false, - strictUnits: false - }; - var continueProcessing = true, - currentErrorcode; - - var checkArgFunc = function(arg, option) { - if (!option) { - print(arg + " option requires a parameter"); - continueProcessing = false; - return false; - } - return true; - }; - - var checkBooleanArg = function(arg) { - var onOff = /^((on|t|true|y|yes)|(off|f|false|n|no))$/i.exec(arg); - if (!onOff) { - print(" unable to parse "+arg+" as a boolean. use one of on/t/true/y/yes/off/f/false/n/no"); - continueProcessing = false; - return false; - } - return Boolean(onOff[2]); - }; - - var warningMessages = ""; - var sourceMapFileInline = false; - - args = args.filter(function (arg) { - var match = arg.match(/^-I(.+)$/); - - if (match) { - options.paths.push(match[1]); - return false; - } - - match = arg.match(/^--?([a-z][0-9a-z-]*)(?:=(.*))?$/i); - if (match) { arg = match[1]; } // was (?:=([^\s]*)), check! - else { return arg; } - - switch (arg) { - case 'v': - case 'version': - console.log("lessc " + less.version.join('.') + " (LESS Compiler) [JavaScript]"); - continueProcessing = false; - break; - case 'verbose': - options.verbose = true; - break; - case 's': - case 'silent': - options.silent = true; - break; - case 'l': - case 'lint': - options.lint = true; - break; - case 'strict-imports': - options.strictImports = true; - break; - case 'h': - case 'help': - //TODO -// require('../lib/less/lessc_helper').printUsage(); - continueProcessing = false; - break; - case 'x': - case 'compress': - options.compress = true; - break; - case 'M': - case 'depends': - options.depends = true; - break; - case 'yui-compress': - warningMessages += "yui-compress option has been removed. assuming clean-css."; - options.cleancss = true; - break; - case 'clean-css': - options.cleancss = true; - break; - case 'max-line-len': - if (checkArgFunc(arg, match[2])) { - options.maxLineLen = parseInt(match[2], 10); - if (options.maxLineLen <= 0) { - options.maxLineLen = -1; - } - } - break; - case 'no-color': - options.color = false; - break; - case 'no-ie-compat': - options.ieCompat = false; - break; - case 'no-js': - options.javascriptEnabled = false; - break; - case 'include-path': - if (checkArgFunc(arg, match[2])) { - options.paths = match[2].split(os.type().match(/Windows/) ? ';' : ':') - .map(function(p) { - if (p) { -// return path.resolve(process.cwd(), p); - return p; - } - }); - } - break; - case 'O0': options.optimization = 0; break; - case 'O1': options.optimization = 1; break; - case 'O2': options.optimization = 2; break; - case 'line-numbers': - if (checkArgFunc(arg, match[2])) { - options.dumpLineNumbers = match[2]; - } - break; - case 'source-map': - if (!match[2]) { - options.sourceMap = true; - } else { - options.sourceMap = match[2]; - } - break; - case 'source-map-rootpath': - if (checkArgFunc(arg, match[2])) { - options.sourceMapRootpath = match[2]; - } - break; - case 'source-map-basepath': - if (checkArgFunc(arg, match[2])) { - options.sourceMapBasepath = match[2]; - } - break; - case 'source-map-map-inline': - sourceMapFileInline = true; - options.sourceMap = true; - break; - case 'source-map-less-inline': - options.outputSourceFiles = true; - break; - case 'source-map-url': - if (checkArgFunc(arg, match[2])) { - options.sourceMapURL = match[2]; - } - break; - case 'source-map-output-map-file': - if (checkArgFunc(arg, match[2])) { - options.writeSourceMap = function(sourceMapContent) { - writeFile(match[2], sourceMapContent); - }; - } - break; - case 'rp': - case 'rootpath': - if (checkArgFunc(arg, match[2])) { - options.rootpath = match[2].replace(/\\/g, '/'); - } - break; - case "ru": - case "relative-urls": - options.relativeUrls = true; - break; - case "sm": - case "strict-math": - if (checkArgFunc(arg, match[2])) { - options.strictMath = checkBooleanArg(match[2]); - } - break; - case "su": - case "strict-units": - if (checkArgFunc(arg, match[2])) { - options.strictUnits = checkBooleanArg(match[2]); - } - break; - default: - console.log('invalid option ' + arg); - continueProcessing = false; - } - }); - - if (!continueProcessing) { - return; - } - - var name = args[0]; - if (name && name != '-') { -// name = path.resolve(process.cwd(), name); - } - var output = args[1]; - var outputbase = args[1]; - if (output) { - options.sourceMapOutputFilename = output; -// output = path.resolve(process.cwd(), output); - if (warningMessages) { - console.log(warningMessages); - } - } - -// options.sourceMapBasepath = process.cwd(); -// options.sourceMapBasepath = ''; - - if (options.sourceMap === true) { - console.log("output: " + output); - if (!output && !sourceMapFileInline) { - console.log("the sourcemap option only has an optional filename if the css filename is given"); - return; - } - options.sourceMapFullFilename = options.sourceMapOutputFilename + ".map"; - options.sourceMap = less.modules.path.basename(options.sourceMapFullFilename); - } else if (options.sourceMap) { - options.sourceMapOutputFilename = options.sourceMap; - } - - - if (!name) { - console.log("lessc: no inout files"); - console.log(""); - // TODO -// require('../lib/less/lessc_helper').printUsage(); - currentErrorcode = 1; - return; - } - -// var ensureDirectory = function (filepath) { -// var dir = path.dirname(filepath), -// cmd, -// existsSync = fs.existsSync || path.existsSync; -// if (!existsSync(dir)) { -// if (mkdirp === undefined) { -// try {mkdirp = require('mkdirp');} -// catch(e) { mkdirp = null; } -// } -// cmd = mkdirp && mkdirp.sync || fs.mkdirSync; -// cmd(dir); -// } -// }; - - if (options.depends) { - if (!outputbase) { - console.log("option --depends requires an output path to be specified"); - return; - } - console.log(outputbase + ": "); - } - - if (!name) { - console.log('No files present in the fileset'); - quit(1); - } - - var input = null; - try { - input = readFile(name, 'utf-8'); - - } catch (e) { - console.log('lesscss: couldn\'t open file ' + name); - quit(1); - } - - options.filename = name; - var result; - try { - var parser = new less.Parser(options); - parser.parse(input, function (e, root) { - if (e) { - writeError(e, options); - quit(1); - } else { - result = root.toCSS(options); - if (output) { - writeFile(output, result); - console.log("Written to " + output); - } else { - print(result); - } - quit(0); - } - }); - } - catch(e) { - writeError(e, options); - quit(1); - } - console.log("done"); -}(arguments)); diff --git a/awx/ui/static/lib/less/dist/lessc-rhino-1.7.0.js b/awx/ui/static/lib/less/dist/lessc-rhino-1.7.0.js deleted file mode 100644 index 7f5884da0e..0000000000 --- a/awx/ui/static/lib/less/dist/lessc-rhino-1.7.0.js +++ /dev/null @@ -1,449 +0,0 @@ -/* LESS.js v1.7.0 RHINO | Copyright (c) 2009-2014, Alexis Sellier */ - -/*global name:true, less, loadStyleSheet, os */ - -function formatError(ctx, options) { - options = options || {}; - - var message = ""; - var extract = ctx.extract; - var error = []; - -// var stylize = options.color ? require('./lessc_helper').stylize : function (str) { return str; }; - var stylize = function (str) { return str; }; - - // only output a stack if it isn't a less error - if (ctx.stack && !ctx.type) { return stylize(ctx.stack, 'red'); } - - if (!ctx.hasOwnProperty('index') || !extract) { - return ctx.stack || ctx.message; - } - - if (typeof(extract[0]) === 'string') { - error.push(stylize((ctx.line - 1) + ' ' + extract[0], 'grey')); - } - - if (typeof(extract[1]) === 'string') { - var errorTxt = ctx.line + ' '; - if (extract[1]) { - errorTxt += extract[1].slice(0, ctx.column) + - stylize(stylize(stylize(extract[1][ctx.column], 'bold') + - extract[1].slice(ctx.column + 1), 'red'), 'inverse'); - } - error.push(errorTxt); - } - - if (typeof(extract[2]) === 'string') { - error.push(stylize((ctx.line + 1) + ' ' + extract[2], 'grey')); - } - error = error.join('\n') + stylize('', 'reset') + '\n'; - - message += stylize(ctx.type + 'Error: ' + ctx.message, 'red'); - if (ctx.filename) { - message += stylize(' in ', 'red') + ctx.filename + - stylize(' on line ' + ctx.line + ', column ' + (ctx.column + 1) + ':', 'grey'); - } - - message += '\n' + error; - - if (ctx.callLine) { - message += stylize('from ', 'red') + (ctx.filename || '') + '/n'; - message += stylize(ctx.callLine, 'grey') + ' ' + ctx.callExtract + '/n'; - } - - return message; -} - -function writeError(ctx, options) { - options = options || {}; - if (options.silent) { return; } - print(formatError(ctx, options)); -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - var endOfPath = Math.max(name.lastIndexOf('/'), name.lastIndexOf('\\')), - sheetName = name.slice(0, endOfPath + 1) + sheet.href, - contents = sheet.contents || {}, - input = readFile(sheetName); - - input = input.replace(/^\xEF\xBB\xBF/, ''); - - contents[sheetName] = input; - - var parser = new less.Parser({ - paths: [sheet.href.replace(/[\w\.-]+$/, '')], - contents: contents - }); - parser.parse(input, function (e, root) { - if (e) { - return writeError(e); - } - try { - callback(e, root, input, sheet, { local: false, lastModified: 0, remaining: remaining }, sheetName); - } catch(e) { - writeError(e); - } - }); -} - -less.Parser.fileLoader = function (file, currentFileInfo, callback, env) { - - var href = file; - if (currentFileInfo && currentFileInfo.currentDirectory && !/^\//.test(file)) { - href = less.modules.path.join(currentFileInfo.currentDirectory, file); - } - - var path = less.modules.path.dirname(href); - - var newFileInfo = { - currentDirectory: path + '/', - filename: href - }; - - if (currentFileInfo) { - newFileInfo.entryPath = currentFileInfo.entryPath; - newFileInfo.rootpath = currentFileInfo.rootpath; - newFileInfo.rootFilename = currentFileInfo.rootFilename; - newFileInfo.relativeUrls = currentFileInfo.relativeUrls; - } else { - newFileInfo.entryPath = path; - newFileInfo.rootpath = less.rootpath || path; - newFileInfo.rootFilename = href; - newFileInfo.relativeUrls = env.relativeUrls; - } - - var j = file.lastIndexOf('/'); - if(newFileInfo.relativeUrls && !/^(?:[a-z-]+:|\/)/.test(file) && j != -1) { - var relativeSubDirectory = file.slice(0, j+1); - newFileInfo.rootpath = newFileInfo.rootpath + relativeSubDirectory; // append (sub|sup) directory path of imported file - } - newFileInfo.currentDirectory = path; - newFileInfo.filename = href; - - var data = null; - try { - data = readFile(href); - } catch (e) { - callback({ type: 'File', message: "'" + less.modules.path.basename(href) + "' wasn't found" }); - return; - } - - try { - callback(null, data, href, newFileInfo, { lastModified: 0 }); - } catch (e) { - callback(e, null, href); - } -}; - - -function writeFile(filename, content) { - var fstream = new java.io.FileWriter(filename); - var out = new java.io.BufferedWriter(fstream); - out.write(content); - out.close(); -} - -// Command line integration via Rhino -(function (args) { - - var options = { - depends: false, - compress: false, - cleancss: false, - max_line_len: -1, - optimization: 1, - silent: false, - verbose: false, - lint: false, - paths: [], - color: true, - strictImports: false, - rootpath: '', - relativeUrls: false, - ieCompat: true, - strictMath: false, - strictUnits: false - }; - var continueProcessing = true, - currentErrorcode; - - var checkArgFunc = function(arg, option) { - if (!option) { - print(arg + " option requires a parameter"); - continueProcessing = false; - return false; - } - return true; - }; - - var checkBooleanArg = function(arg) { - var onOff = /^((on|t|true|y|yes)|(off|f|false|n|no))$/i.exec(arg); - if (!onOff) { - print(" unable to parse "+arg+" as a boolean. use one of on/t/true/y/yes/off/f/false/n/no"); - continueProcessing = false; - return false; - } - return Boolean(onOff[2]); - }; - - var warningMessages = ""; - var sourceMapFileInline = false; - - args = args.filter(function (arg) { - var match = arg.match(/^-I(.+)$/); - - if (match) { - options.paths.push(match[1]); - return false; - } - - match = arg.match(/^--?([a-z][0-9a-z-]*)(?:=(.*))?$/i); - if (match) { arg = match[1]; } // was (?:=([^\s]*)), check! - else { return arg; } - - switch (arg) { - case 'v': - case 'version': - console.log("lessc " + less.version.join('.') + " (LESS Compiler) [JavaScript]"); - continueProcessing = false; - break; - case 'verbose': - options.verbose = true; - break; - case 's': - case 'silent': - options.silent = true; - break; - case 'l': - case 'lint': - options.lint = true; - break; - case 'strict-imports': - options.strictImports = true; - break; - case 'h': - case 'help': - //TODO -// require('../lib/less/lessc_helper').printUsage(); - continueProcessing = false; - break; - case 'x': - case 'compress': - options.compress = true; - break; - case 'M': - case 'depends': - options.depends = true; - break; - case 'yui-compress': - warningMessages += "yui-compress option has been removed. assuming clean-css."; - options.cleancss = true; - break; - case 'clean-css': - options.cleancss = true; - break; - case 'max-line-len': - if (checkArgFunc(arg, match[2])) { - options.maxLineLen = parseInt(match[2], 10); - if (options.maxLineLen <= 0) { - options.maxLineLen = -1; - } - } - break; - case 'no-color': - options.color = false; - break; - case 'no-ie-compat': - options.ieCompat = false; - break; - case 'no-js': - options.javascriptEnabled = false; - break; - case 'include-path': - if (checkArgFunc(arg, match[2])) { - options.paths = match[2].split(os.type().match(/Windows/) ? ';' : ':') - .map(function(p) { - if (p) { -// return path.resolve(process.cwd(), p); - return p; - } - }); - } - break; - case 'O0': options.optimization = 0; break; - case 'O1': options.optimization = 1; break; - case 'O2': options.optimization = 2; break; - case 'line-numbers': - if (checkArgFunc(arg, match[2])) { - options.dumpLineNumbers = match[2]; - } - break; - case 'source-map': - if (!match[2]) { - options.sourceMap = true; - } else { - options.sourceMap = match[2]; - } - break; - case 'source-map-rootpath': - if (checkArgFunc(arg, match[2])) { - options.sourceMapRootpath = match[2]; - } - break; - case 'source-map-basepath': - if (checkArgFunc(arg, match[2])) { - options.sourceMapBasepath = match[2]; - } - break; - case 'source-map-map-inline': - sourceMapFileInline = true; - options.sourceMap = true; - break; - case 'source-map-less-inline': - options.outputSourceFiles = true; - break; - case 'source-map-url': - if (checkArgFunc(arg, match[2])) { - options.sourceMapURL = match[2]; - } - break; - case 'source-map-output-map-file': - if (checkArgFunc(arg, match[2])) { - options.writeSourceMap = function(sourceMapContent) { - writeFile(match[2], sourceMapContent); - }; - } - break; - case 'rp': - case 'rootpath': - if (checkArgFunc(arg, match[2])) { - options.rootpath = match[2].replace(/\\/g, '/'); - } - break; - case "ru": - case "relative-urls": - options.relativeUrls = true; - break; - case "sm": - case "strict-math": - if (checkArgFunc(arg, match[2])) { - options.strictMath = checkBooleanArg(match[2]); - } - break; - case "su": - case "strict-units": - if (checkArgFunc(arg, match[2])) { - options.strictUnits = checkBooleanArg(match[2]); - } - break; - default: - console.log('invalid option ' + arg); - continueProcessing = false; - } - }); - - if (!continueProcessing) { - return; - } - - var name = args[0]; - if (name && name != '-') { -// name = path.resolve(process.cwd(), name); - } - var output = args[1]; - var outputbase = args[1]; - if (output) { - options.sourceMapOutputFilename = output; -// output = path.resolve(process.cwd(), output); - if (warningMessages) { - console.log(warningMessages); - } - } - -// options.sourceMapBasepath = process.cwd(); -// options.sourceMapBasepath = ''; - - if (options.sourceMap === true) { - console.log("output: " + output); - if (!output && !sourceMapFileInline) { - console.log("the sourcemap option only has an optional filename if the css filename is given"); - return; - } - options.sourceMapFullFilename = options.sourceMapOutputFilename + ".map"; - options.sourceMap = less.modules.path.basename(options.sourceMapFullFilename); - } else if (options.sourceMap) { - options.sourceMapOutputFilename = options.sourceMap; - } - - - if (!name) { - console.log("lessc: no inout files"); - console.log(""); - // TODO -// require('../lib/less/lessc_helper').printUsage(); - currentErrorcode = 1; - return; - } - -// var ensureDirectory = function (filepath) { -// var dir = path.dirname(filepath), -// cmd, -// existsSync = fs.existsSync || path.existsSync; -// if (!existsSync(dir)) { -// if (mkdirp === undefined) { -// try {mkdirp = require('mkdirp');} -// catch(e) { mkdirp = null; } -// } -// cmd = mkdirp && mkdirp.sync || fs.mkdirSync; -// cmd(dir); -// } -// }; - - if (options.depends) { - if (!outputbase) { - console.log("option --depends requires an output path to be specified"); - return; - } - console.log(outputbase + ": "); - } - - if (!name) { - console.log('No files present in the fileset'); - quit(1); - } - - var input = null; - try { - input = readFile(name, 'utf-8'); - - } catch (e) { - console.log('lesscss: couldn\'t open file ' + name); - quit(1); - } - - options.filename = name; - var result; - try { - var parser = new less.Parser(options); - parser.parse(input, function (e, root) { - if (e) { - writeError(e, options); - quit(1); - } else { - result = root.toCSS(options); - if (output) { - writeFile(output, result); - console.log("Written to " + output); - } else { - print(result); - } - quit(0); - } - }); - } - catch(e) { - writeError(e, options); - quit(1); - } - console.log("done"); -}(arguments)); diff --git a/awx/ui/static/lib/less/dist/lessc-rhino-1.7.1.js b/awx/ui/static/lib/less/dist/lessc-rhino-1.7.1.js deleted file mode 100644 index ed0146bdac..0000000000 --- a/awx/ui/static/lib/less/dist/lessc-rhino-1.7.1.js +++ /dev/null @@ -1,449 +0,0 @@ -/* Less.js v1.7.1 RHINO | Copyright (c) 2009-2014, Alexis Sellier */ - -/*global name:true, less, loadStyleSheet, os */ - -function formatError(ctx, options) { - options = options || {}; - - var message = ""; - var extract = ctx.extract; - var error = []; - -// var stylize = options.color ? require('./lessc_helper').stylize : function (str) { return str; }; - var stylize = function (str) { return str; }; - - // only output a stack if it isn't a less error - if (ctx.stack && !ctx.type) { return stylize(ctx.stack, 'red'); } - - if (!ctx.hasOwnProperty('index') || !extract) { - return ctx.stack || ctx.message; - } - - if (typeof(extract[0]) === 'string') { - error.push(stylize((ctx.line - 1) + ' ' + extract[0], 'grey')); - } - - if (typeof(extract[1]) === 'string') { - var errorTxt = ctx.line + ' '; - if (extract[1]) { - errorTxt += extract[1].slice(0, ctx.column) + - stylize(stylize(stylize(extract[1][ctx.column], 'bold') + - extract[1].slice(ctx.column + 1), 'red'), 'inverse'); - } - error.push(errorTxt); - } - - if (typeof(extract[2]) === 'string') { - error.push(stylize((ctx.line + 1) + ' ' + extract[2], 'grey')); - } - error = error.join('\n') + stylize('', 'reset') + '\n'; - - message += stylize(ctx.type + 'Error: ' + ctx.message, 'red'); - if (ctx.filename) { - message += stylize(' in ', 'red') + ctx.filename + - stylize(' on line ' + ctx.line + ', column ' + (ctx.column + 1) + ':', 'grey'); - } - - message += '\n' + error; - - if (ctx.callLine) { - message += stylize('from ', 'red') + (ctx.filename || '') + '/n'; - message += stylize(ctx.callLine, 'grey') + ' ' + ctx.callExtract + '/n'; - } - - return message; -} - -function writeError(ctx, options) { - options = options || {}; - if (options.silent) { return; } - var message = formatError(ctx, options); - throw new Error(message); -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - var endOfPath = Math.max(name.lastIndexOf('/'), name.lastIndexOf('\\')), - sheetName = name.slice(0, endOfPath + 1) + sheet.href, - contents = sheet.contents || {}, - input = readFile(sheetName); - - input = input.replace(/^\xEF\xBB\xBF/, ''); - - contents[sheetName] = input; - - var parser = new less.Parser({ - paths: [sheet.href.replace(/[\w\.-]+$/, '')], - contents: contents - }); - parser.parse(input, function (e, root) { - if (e) { - return writeError(e); - } - try { - callback(e, root, input, sheet, { local: false, lastModified: 0, remaining: remaining }, sheetName); - } catch(e) { - writeError(e); - } - }); -} - -less.Parser.fileLoader = function (file, currentFileInfo, callback, env) { - - var href = file; - if (currentFileInfo && currentFileInfo.currentDirectory && !/^\//.test(file)) { - href = less.modules.path.join(currentFileInfo.currentDirectory, file); - } - - var path = less.modules.path.dirname(href); - - var newFileInfo = { - currentDirectory: path + '/', - filename: href - }; - - if (currentFileInfo) { - newFileInfo.entryPath = currentFileInfo.entryPath; - newFileInfo.rootpath = currentFileInfo.rootpath; - newFileInfo.rootFilename = currentFileInfo.rootFilename; - newFileInfo.relativeUrls = currentFileInfo.relativeUrls; - } else { - newFileInfo.entryPath = path; - newFileInfo.rootpath = less.rootpath || path; - newFileInfo.rootFilename = href; - newFileInfo.relativeUrls = env.relativeUrls; - } - - var j = file.lastIndexOf('/'); - if(newFileInfo.relativeUrls && !/^(?:[a-z-]+:|\/)/.test(file) && j != -1) { - var relativeSubDirectory = file.slice(0, j+1); - newFileInfo.rootpath = newFileInfo.rootpath + relativeSubDirectory; // append (sub|sup) directory path of imported file - } - newFileInfo.currentDirectory = path; - newFileInfo.filename = href; - - var data = null; - try { - data = readFile(href); - } catch (e) { - callback({ type: 'File', message: "'" + less.modules.path.basename(href) + "' wasn't found" }); - return; - } - - try { - callback(null, data, href, newFileInfo, { lastModified: 0 }); - } catch (e) { - callback(e, null, href); - } -}; - - -function writeFile(filename, content) { - var fstream = new java.io.FileWriter(filename); - var out = new java.io.BufferedWriter(fstream); - out.write(content); - out.close(); -} - -// Command line integration via Rhino -(function (args) { - - var options = { - depends: false, - compress: false, - cleancss: false, - max_line_len: -1, - optimization: 1, - silent: false, - verbose: false, - lint: false, - paths: [], - color: true, - strictImports: false, - rootpath: '', - relativeUrls: false, - ieCompat: true, - strictMath: false, - strictUnits: false - }; - var continueProcessing = true, - currentErrorcode; - - var checkArgFunc = function(arg, option) { - if (!option) { - print(arg + " option requires a parameter"); - continueProcessing = false; - return false; - } - return true; - }; - - var checkBooleanArg = function(arg) { - var onOff = /^((on|t|true|y|yes)|(off|f|false|n|no))$/i.exec(arg); - if (!onOff) { - print(" unable to parse "+arg+" as a boolean. use one of on/t/true/y/yes/off/f/false/n/no"); - continueProcessing = false; - return false; - } - return Boolean(onOff[2]); - }; - - var warningMessages = ""; - var sourceMapFileInline = false; - - args = args.filter(function (arg) { - var match = arg.match(/^-I(.+)$/); - - if (match) { - options.paths.push(match[1]); - return false; - } - - match = arg.match(/^--?([a-z][0-9a-z-]*)(?:=(.*))?$/i); - if (match) { arg = match[1]; } // was (?:=([^\s]*)), check! - else { return arg; } - - switch (arg) { - case 'v': - case 'version': - console.log("lessc " + less.version.join('.') + " (Less Compiler) [JavaScript]"); - continueProcessing = false; - break; - case 'verbose': - options.verbose = true; - break; - case 's': - case 'silent': - options.silent = true; - break; - case 'l': - case 'lint': - options.lint = true; - break; - case 'strict-imports': - options.strictImports = true; - break; - case 'h': - case 'help': - //TODO -// require('../lib/less/lessc_helper').printUsage(); - continueProcessing = false; - break; - case 'x': - case 'compress': - options.compress = true; - break; - case 'M': - case 'depends': - options.depends = true; - break; - case 'yui-compress': - warningMessages += "yui-compress option has been removed. assuming clean-css."; - options.cleancss = true; - break; - case 'clean-css': - options.cleancss = true; - break; - case 'max-line-len': - if (checkArgFunc(arg, match[2])) { - options.maxLineLen = parseInt(match[2], 10); - if (options.maxLineLen <= 0) { - options.maxLineLen = -1; - } - } - break; - case 'no-color': - options.color = false; - break; - case 'no-ie-compat': - options.ieCompat = false; - break; - case 'no-js': - options.javascriptEnabled = false; - break; - case 'include-path': - if (checkArgFunc(arg, match[2])) { - options.paths = match[2].split(os.type().match(/Windows/) ? ';' : ':') - .map(function(p) { - if (p) { -// return path.resolve(process.cwd(), p); - return p; - } - }); - } - break; - case 'O0': options.optimization = 0; break; - case 'O1': options.optimization = 1; break; - case 'O2': options.optimization = 2; break; - case 'line-numbers': - if (checkArgFunc(arg, match[2])) { - options.dumpLineNumbers = match[2]; - } - break; - case 'source-map': - if (!match[2]) { - options.sourceMap = true; - } else { - options.sourceMap = match[2]; - } - break; - case 'source-map-rootpath': - if (checkArgFunc(arg, match[2])) { - options.sourceMapRootpath = match[2]; - } - break; - case 'source-map-basepath': - if (checkArgFunc(arg, match[2])) { - options.sourceMapBasepath = match[2]; - } - break; - case 'source-map-map-inline': - sourceMapFileInline = true; - options.sourceMap = true; - break; - case 'source-map-less-inline': - options.outputSourceFiles = true; - break; - case 'source-map-url': - if (checkArgFunc(arg, match[2])) { - options.sourceMapURL = match[2]; - } - break; - case 'source-map-output-map-file': - if (checkArgFunc(arg, match[2])) { - options.writeSourceMap = function(sourceMapContent) { - writeFile(match[2], sourceMapContent); - }; - } - break; - case 'rp': - case 'rootpath': - if (checkArgFunc(arg, match[2])) { - options.rootpath = match[2].replace(/\\/g, '/'); - } - break; - case "ru": - case "relative-urls": - options.relativeUrls = true; - break; - case "sm": - case "strict-math": - if (checkArgFunc(arg, match[2])) { - options.strictMath = checkBooleanArg(match[2]); - } - break; - case "su": - case "strict-units": - if (checkArgFunc(arg, match[2])) { - options.strictUnits = checkBooleanArg(match[2]); - } - break; - default: - console.log('invalid option ' + arg); - continueProcessing = false; - } - }); - - if (!continueProcessing) { - return; - } - - var name = args[0]; - if (name && name != '-') { -// name = path.resolve(process.cwd(), name); - } - var output = args[1]; - var outputbase = args[1]; - if (output) { - options.sourceMapOutputFilename = output; -// output = path.resolve(process.cwd(), output); - if (warningMessages) { - console.log(warningMessages); - } - } - -// options.sourceMapBasepath = process.cwd(); -// options.sourceMapBasepath = ''; - - if (options.sourceMap === true) { - console.log("output: " + output); - if (!output && !sourceMapFileInline) { - console.log("the sourcemap option only has an optional filename if the css filename is given"); - return; - } - options.sourceMapFullFilename = options.sourceMapOutputFilename + ".map"; - options.sourceMap = less.modules.path.basename(options.sourceMapFullFilename); - } else if (options.sourceMap) { - options.sourceMapOutputFilename = options.sourceMap; - } - - - if (!name) { - console.log("lessc: no inout files"); - console.log(""); - // TODO -// require('../lib/less/lessc_helper').printUsage(); - currentErrorcode = 1; - return; - } - -// var ensureDirectory = function (filepath) { -// var dir = path.dirname(filepath), -// cmd, -// existsSync = fs.existsSync || path.existsSync; -// if (!existsSync(dir)) { -// if (mkdirp === undefined) { -// try {mkdirp = require('mkdirp');} -// catch(e) { mkdirp = null; } -// } -// cmd = mkdirp && mkdirp.sync || fs.mkdirSync; -// cmd(dir); -// } -// }; - - if (options.depends) { - if (!outputbase) { - console.log("option --depends requires an output path to be specified"); - return; - } - console.log(outputbase + ": "); - } - - if (!name) { - console.log('No files present in the fileset'); - quit(1); - } - - var input = null; - try { - input = readFile(name, 'utf-8'); - - } catch (e) { - console.log('lesscss: couldn\'t open file ' + name); - quit(1); - } - - options.filename = name; - var result; - try { - var parser = new less.Parser(options); - parser.parse(input, function (e, root) { - if (e) { - writeError(e, options); - quit(1); - } else { - result = root.toCSS(options); - if (output) { - writeFile(output, result); - console.log("Written to " + output); - } else { - print(result); - } - quit(0); - } - }); - } - catch(e) { - writeError(e, options); - quit(1); - } -}(arguments)); diff --git a/awx/ui/static/lib/less/dist/lessc-rhino-1.7.2.js b/awx/ui/static/lib/less/dist/lessc-rhino-1.7.2.js deleted file mode 100644 index 40e44ad7d5..0000000000 --- a/awx/ui/static/lib/less/dist/lessc-rhino-1.7.2.js +++ /dev/null @@ -1,449 +0,0 @@ -/* Less.js v1.7.2 RHINO | Copyright (c) 2009-2014, Alexis Sellier */ - -/*global name:true, less, loadStyleSheet, os */ - -function formatError(ctx, options) { - options = options || {}; - - var message = ""; - var extract = ctx.extract; - var error = []; - -// var stylize = options.color ? require('./lessc_helper').stylize : function (str) { return str; }; - var stylize = function (str) { return str; }; - - // only output a stack if it isn't a less error - if (ctx.stack && !ctx.type) { return stylize(ctx.stack, 'red'); } - - if (!ctx.hasOwnProperty('index') || !extract) { - return ctx.stack || ctx.message; - } - - if (typeof(extract[0]) === 'string') { - error.push(stylize((ctx.line - 1) + ' ' + extract[0], 'grey')); - } - - if (typeof(extract[1]) === 'string') { - var errorTxt = ctx.line + ' '; - if (extract[1]) { - errorTxt += extract[1].slice(0, ctx.column) + - stylize(stylize(stylize(extract[1][ctx.column], 'bold') + - extract[1].slice(ctx.column + 1), 'red'), 'inverse'); - } - error.push(errorTxt); - } - - if (typeof(extract[2]) === 'string') { - error.push(stylize((ctx.line + 1) + ' ' + extract[2], 'grey')); - } - error = error.join('\n') + stylize('', 'reset') + '\n'; - - message += stylize(ctx.type + 'Error: ' + ctx.message, 'red'); - if (ctx.filename) { - message += stylize(' in ', 'red') + ctx.filename + - stylize(' on line ' + ctx.line + ', column ' + (ctx.column + 1) + ':', 'grey'); - } - - message += '\n' + error; - - if (ctx.callLine) { - message += stylize('from ', 'red') + (ctx.filename || '') + '/n'; - message += stylize(ctx.callLine, 'grey') + ' ' + ctx.callExtract + '/n'; - } - - return message; -} - -function writeError(ctx, options) { - options = options || {}; - if (options.silent) { return; } - var message = formatError(ctx, options); - throw new Error(message); -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - var endOfPath = Math.max(name.lastIndexOf('/'), name.lastIndexOf('\\')), - sheetName = name.slice(0, endOfPath + 1) + sheet.href, - contents = sheet.contents || {}, - input = readFile(sheetName); - - input = input.replace(/^\xEF\xBB\xBF/, ''); - - contents[sheetName] = input; - - var parser = new less.Parser({ - paths: [sheet.href.replace(/[\w\.-]+$/, '')], - contents: contents - }); - parser.parse(input, function (e, root) { - if (e) { - return writeError(e); - } - try { - callback(e, root, input, sheet, { local: false, lastModified: 0, remaining: remaining }, sheetName); - } catch(e) { - writeError(e); - } - }); -} - -less.Parser.fileLoader = function (file, currentFileInfo, callback, env) { - - var href = file; - if (currentFileInfo && currentFileInfo.currentDirectory && !/^\//.test(file)) { - href = less.modules.path.join(currentFileInfo.currentDirectory, file); - } - - var path = less.modules.path.dirname(href); - - var newFileInfo = { - currentDirectory: path + '/', - filename: href - }; - - if (currentFileInfo) { - newFileInfo.entryPath = currentFileInfo.entryPath; - newFileInfo.rootpath = currentFileInfo.rootpath; - newFileInfo.rootFilename = currentFileInfo.rootFilename; - newFileInfo.relativeUrls = currentFileInfo.relativeUrls; - } else { - newFileInfo.entryPath = path; - newFileInfo.rootpath = less.rootpath || path; - newFileInfo.rootFilename = href; - newFileInfo.relativeUrls = env.relativeUrls; - } - - var j = file.lastIndexOf('/'); - if(newFileInfo.relativeUrls && !/^(?:[a-z-]+:|\/)/.test(file) && j != -1) { - var relativeSubDirectory = file.slice(0, j+1); - newFileInfo.rootpath = newFileInfo.rootpath + relativeSubDirectory; // append (sub|sup) directory path of imported file - } - newFileInfo.currentDirectory = path; - newFileInfo.filename = href; - - var data = null; - try { - data = readFile(href); - } catch (e) { - callback({ type: 'File', message: "'" + less.modules.path.basename(href) + "' wasn't found" }); - return; - } - - try { - callback(null, data, href, newFileInfo, { lastModified: 0 }); - } catch (e) { - callback(e, null, href); - } -}; - - -function writeFile(filename, content) { - var fstream = new java.io.FileWriter(filename); - var out = new java.io.BufferedWriter(fstream); - out.write(content); - out.close(); -} - -// Command line integration via Rhino -(function (args) { - - var options = { - depends: false, - compress: false, - cleancss: false, - max_line_len: -1, - optimization: 1, - silent: false, - verbose: false, - lint: false, - paths: [], - color: true, - strictImports: false, - rootpath: '', - relativeUrls: false, - ieCompat: true, - strictMath: false, - strictUnits: false - }; - var continueProcessing = true, - currentErrorcode; - - var checkArgFunc = function(arg, option) { - if (!option) { - print(arg + " option requires a parameter"); - continueProcessing = false; - return false; - } - return true; - }; - - var checkBooleanArg = function(arg) { - var onOff = /^((on|t|true|y|yes)|(off|f|false|n|no))$/i.exec(arg); - if (!onOff) { - print(" unable to parse "+arg+" as a boolean. use one of on/t/true/y/yes/off/f/false/n/no"); - continueProcessing = false; - return false; - } - return Boolean(onOff[2]); - }; - - var warningMessages = ""; - var sourceMapFileInline = false; - - args = args.filter(function (arg) { - var match = arg.match(/^-I(.+)$/); - - if (match) { - options.paths.push(match[1]); - return false; - } - - match = arg.match(/^--?([a-z][0-9a-z-]*)(?:=(.*))?$/i); - if (match) { arg = match[1]; } // was (?:=([^\s]*)), check! - else { return arg; } - - switch (arg) { - case 'v': - case 'version': - console.log("lessc " + less.version.join('.') + " (Less Compiler) [JavaScript]"); - continueProcessing = false; - break; - case 'verbose': - options.verbose = true; - break; - case 's': - case 'silent': - options.silent = true; - break; - case 'l': - case 'lint': - options.lint = true; - break; - case 'strict-imports': - options.strictImports = true; - break; - case 'h': - case 'help': - //TODO -// require('../lib/less/lessc_helper').printUsage(); - continueProcessing = false; - break; - case 'x': - case 'compress': - options.compress = true; - break; - case 'M': - case 'depends': - options.depends = true; - break; - case 'yui-compress': - warningMessages += "yui-compress option has been removed. assuming clean-css."; - options.cleancss = true; - break; - case 'clean-css': - options.cleancss = true; - break; - case 'max-line-len': - if (checkArgFunc(arg, match[2])) { - options.maxLineLen = parseInt(match[2], 10); - if (options.maxLineLen <= 0) { - options.maxLineLen = -1; - } - } - break; - case 'no-color': - options.color = false; - break; - case 'no-ie-compat': - options.ieCompat = false; - break; - case 'no-js': - options.javascriptEnabled = false; - break; - case 'include-path': - if (checkArgFunc(arg, match[2])) { - options.paths = match[2].split(os.type().match(/Windows/) ? ';' : ':') - .map(function(p) { - if (p) { -// return path.resolve(process.cwd(), p); - return p; - } - }); - } - break; - case 'O0': options.optimization = 0; break; - case 'O1': options.optimization = 1; break; - case 'O2': options.optimization = 2; break; - case 'line-numbers': - if (checkArgFunc(arg, match[2])) { - options.dumpLineNumbers = match[2]; - } - break; - case 'source-map': - if (!match[2]) { - options.sourceMap = true; - } else { - options.sourceMap = match[2]; - } - break; - case 'source-map-rootpath': - if (checkArgFunc(arg, match[2])) { - options.sourceMapRootpath = match[2]; - } - break; - case 'source-map-basepath': - if (checkArgFunc(arg, match[2])) { - options.sourceMapBasepath = match[2]; - } - break; - case 'source-map-map-inline': - sourceMapFileInline = true; - options.sourceMap = true; - break; - case 'source-map-less-inline': - options.outputSourceFiles = true; - break; - case 'source-map-url': - if (checkArgFunc(arg, match[2])) { - options.sourceMapURL = match[2]; - } - break; - case 'source-map-output-map-file': - if (checkArgFunc(arg, match[2])) { - options.writeSourceMap = function(sourceMapContent) { - writeFile(match[2], sourceMapContent); - }; - } - break; - case 'rp': - case 'rootpath': - if (checkArgFunc(arg, match[2])) { - options.rootpath = match[2].replace(/\\/g, '/'); - } - break; - case "ru": - case "relative-urls": - options.relativeUrls = true; - break; - case "sm": - case "strict-math": - if (checkArgFunc(arg, match[2])) { - options.strictMath = checkBooleanArg(match[2]); - } - break; - case "su": - case "strict-units": - if (checkArgFunc(arg, match[2])) { - options.strictUnits = checkBooleanArg(match[2]); - } - break; - default: - console.log('invalid option ' + arg); - continueProcessing = false; - } - }); - - if (!continueProcessing) { - return; - } - - var name = args[0]; - if (name && name != '-') { -// name = path.resolve(process.cwd(), name); - } - var output = args[1]; - var outputbase = args[1]; - if (output) { - options.sourceMapOutputFilename = output; -// output = path.resolve(process.cwd(), output); - if (warningMessages) { - console.log(warningMessages); - } - } - -// options.sourceMapBasepath = process.cwd(); -// options.sourceMapBasepath = ''; - - if (options.sourceMap === true) { - console.log("output: " + output); - if (!output && !sourceMapFileInline) { - console.log("the sourcemap option only has an optional filename if the css filename is given"); - return; - } - options.sourceMapFullFilename = options.sourceMapOutputFilename + ".map"; - options.sourceMap = less.modules.path.basename(options.sourceMapFullFilename); - } else if (options.sourceMap) { - options.sourceMapOutputFilename = options.sourceMap; - } - - - if (!name) { - console.log("lessc: no inout files"); - console.log(""); - // TODO -// require('../lib/less/lessc_helper').printUsage(); - currentErrorcode = 1; - return; - } - -// var ensureDirectory = function (filepath) { -// var dir = path.dirname(filepath), -// cmd, -// existsSync = fs.existsSync || path.existsSync; -// if (!existsSync(dir)) { -// if (mkdirp === undefined) { -// try {mkdirp = require('mkdirp');} -// catch(e) { mkdirp = null; } -// } -// cmd = mkdirp && mkdirp.sync || fs.mkdirSync; -// cmd(dir); -// } -// }; - - if (options.depends) { - if (!outputbase) { - console.log("option --depends requires an output path to be specified"); - return; - } - console.log(outputbase + ": "); - } - - if (!name) { - console.log('No files present in the fileset'); - quit(1); - } - - var input = null; - try { - input = readFile(name, 'utf-8'); - - } catch (e) { - console.log('lesscss: couldn\'t open file ' + name); - quit(1); - } - - options.filename = name; - var result; - try { - var parser = new less.Parser(options); - parser.parse(input, function (e, root) { - if (e) { - writeError(e, options); - quit(1); - } else { - result = root.toCSS(options); - if (output) { - writeFile(output, result); - console.log("Written to " + output); - } else { - print(result); - } - quit(0); - } - }); - } - catch(e) { - writeError(e, options); - quit(1); - } -}(arguments)); diff --git a/awx/ui/static/lib/less/dist/lessc-rhino-1.7.3.js b/awx/ui/static/lib/less/dist/lessc-rhino-1.7.3.js deleted file mode 100644 index c27260ba0c..0000000000 --- a/awx/ui/static/lib/less/dist/lessc-rhino-1.7.3.js +++ /dev/null @@ -1,449 +0,0 @@ -/* Less.js v1.7.3 RHINO | Copyright (c) 2009-2014, Alexis Sellier */ - -/*global name:true, less, loadStyleSheet, os */ - -function formatError(ctx, options) { - options = options || {}; - - var message = ""; - var extract = ctx.extract; - var error = []; - -// var stylize = options.color ? require('./lessc_helper').stylize : function (str) { return str; }; - var stylize = function (str) { return str; }; - - // only output a stack if it isn't a less error - if (ctx.stack && !ctx.type) { return stylize(ctx.stack, 'red'); } - - if (!ctx.hasOwnProperty('index') || !extract) { - return ctx.stack || ctx.message; - } - - if (typeof(extract[0]) === 'string') { - error.push(stylize((ctx.line - 1) + ' ' + extract[0], 'grey')); - } - - if (typeof(extract[1]) === 'string') { - var errorTxt = ctx.line + ' '; - if (extract[1]) { - errorTxt += extract[1].slice(0, ctx.column) + - stylize(stylize(stylize(extract[1][ctx.column], 'bold') + - extract[1].slice(ctx.column + 1), 'red'), 'inverse'); - } - error.push(errorTxt); - } - - if (typeof(extract[2]) === 'string') { - error.push(stylize((ctx.line + 1) + ' ' + extract[2], 'grey')); - } - error = error.join('\n') + stylize('', 'reset') + '\n'; - - message += stylize(ctx.type + 'Error: ' + ctx.message, 'red'); - if (ctx.filename) { - message += stylize(' in ', 'red') + ctx.filename + - stylize(' on line ' + ctx.line + ', column ' + (ctx.column + 1) + ':', 'grey'); - } - - message += '\n' + error; - - if (ctx.callLine) { - message += stylize('from ', 'red') + (ctx.filename || '') + '/n'; - message += stylize(ctx.callLine, 'grey') + ' ' + ctx.callExtract + '/n'; - } - - return message; -} - -function writeError(ctx, options) { - options = options || {}; - if (options.silent) { return; } - var message = formatError(ctx, options); - throw new Error(message); -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - var endOfPath = Math.max(name.lastIndexOf('/'), name.lastIndexOf('\\')), - sheetName = name.slice(0, endOfPath + 1) + sheet.href, - contents = sheet.contents || {}, - input = readFile(sheetName); - - input = input.replace(/^\xEF\xBB\xBF/, ''); - - contents[sheetName] = input; - - var parser = new less.Parser({ - paths: [sheet.href.replace(/[\w\.-]+$/, '')], - contents: contents - }); - parser.parse(input, function (e, root) { - if (e) { - return writeError(e); - } - try { - callback(e, root, input, sheet, { local: false, lastModified: 0, remaining: remaining }, sheetName); - } catch(e) { - writeError(e); - } - }); -} - -less.Parser.fileLoader = function (file, currentFileInfo, callback, env) { - - var href = file; - if (currentFileInfo && currentFileInfo.currentDirectory && !/^\//.test(file)) { - href = less.modules.path.join(currentFileInfo.currentDirectory, file); - } - - var path = less.modules.path.dirname(href); - - var newFileInfo = { - currentDirectory: path + '/', - filename: href - }; - - if (currentFileInfo) { - newFileInfo.entryPath = currentFileInfo.entryPath; - newFileInfo.rootpath = currentFileInfo.rootpath; - newFileInfo.rootFilename = currentFileInfo.rootFilename; - newFileInfo.relativeUrls = currentFileInfo.relativeUrls; - } else { - newFileInfo.entryPath = path; - newFileInfo.rootpath = less.rootpath || path; - newFileInfo.rootFilename = href; - newFileInfo.relativeUrls = env.relativeUrls; - } - - var j = file.lastIndexOf('/'); - if(newFileInfo.relativeUrls && !/^(?:[a-z-]+:|\/)/.test(file) && j != -1) { - var relativeSubDirectory = file.slice(0, j+1); - newFileInfo.rootpath = newFileInfo.rootpath + relativeSubDirectory; // append (sub|sup) directory path of imported file - } - newFileInfo.currentDirectory = path; - newFileInfo.filename = href; - - var data = null; - try { - data = readFile(href); - } catch (e) { - callback({ type: 'File', message: "'" + less.modules.path.basename(href) + "' wasn't found" }); - return; - } - - try { - callback(null, data, href, newFileInfo, { lastModified: 0 }); - } catch (e) { - callback(e, null, href); - } -}; - - -function writeFile(filename, content) { - var fstream = new java.io.FileWriter(filename); - var out = new java.io.BufferedWriter(fstream); - out.write(content); - out.close(); -} - -// Command line integration via Rhino -(function (args) { - - var options = { - depends: false, - compress: false, - cleancss: false, - max_line_len: -1, - optimization: 1, - silent: false, - verbose: false, - lint: false, - paths: [], - color: true, - strictImports: false, - rootpath: '', - relativeUrls: false, - ieCompat: true, - strictMath: false, - strictUnits: false - }; - var continueProcessing = true, - currentErrorcode; - - var checkArgFunc = function(arg, option) { - if (!option) { - print(arg + " option requires a parameter"); - continueProcessing = false; - return false; - } - return true; - }; - - var checkBooleanArg = function(arg) { - var onOff = /^((on|t|true|y|yes)|(off|f|false|n|no))$/i.exec(arg); - if (!onOff) { - print(" unable to parse "+arg+" as a boolean. use one of on/t/true/y/yes/off/f/false/n/no"); - continueProcessing = false; - return false; - } - return Boolean(onOff[2]); - }; - - var warningMessages = ""; - var sourceMapFileInline = false; - - args = args.filter(function (arg) { - var match = arg.match(/^-I(.+)$/); - - if (match) { - options.paths.push(match[1]); - return false; - } - - match = arg.match(/^--?([a-z][0-9a-z-]*)(?:=(.*))?$/i); - if (match) { arg = match[1]; } // was (?:=([^\s]*)), check! - else { return arg; } - - switch (arg) { - case 'v': - case 'version': - console.log("lessc " + less.version.join('.') + " (Less Compiler) [JavaScript]"); - continueProcessing = false; - break; - case 'verbose': - options.verbose = true; - break; - case 's': - case 'silent': - options.silent = true; - break; - case 'l': - case 'lint': - options.lint = true; - break; - case 'strict-imports': - options.strictImports = true; - break; - case 'h': - case 'help': - //TODO -// require('../lib/less/lessc_helper').printUsage(); - continueProcessing = false; - break; - case 'x': - case 'compress': - options.compress = true; - break; - case 'M': - case 'depends': - options.depends = true; - break; - case 'yui-compress': - warningMessages += "yui-compress option has been removed. assuming clean-css."; - options.cleancss = true; - break; - case 'clean-css': - options.cleancss = true; - break; - case 'max-line-len': - if (checkArgFunc(arg, match[2])) { - options.maxLineLen = parseInt(match[2], 10); - if (options.maxLineLen <= 0) { - options.maxLineLen = -1; - } - } - break; - case 'no-color': - options.color = false; - break; - case 'no-ie-compat': - options.ieCompat = false; - break; - case 'no-js': - options.javascriptEnabled = false; - break; - case 'include-path': - if (checkArgFunc(arg, match[2])) { - options.paths = match[2].split(os.type().match(/Windows/) ? ';' : ':') - .map(function(p) { - if (p) { -// return path.resolve(process.cwd(), p); - return p; - } - }); - } - break; - case 'O0': options.optimization = 0; break; - case 'O1': options.optimization = 1; break; - case 'O2': options.optimization = 2; break; - case 'line-numbers': - if (checkArgFunc(arg, match[2])) { - options.dumpLineNumbers = match[2]; - } - break; - case 'source-map': - if (!match[2]) { - options.sourceMap = true; - } else { - options.sourceMap = match[2]; - } - break; - case 'source-map-rootpath': - if (checkArgFunc(arg, match[2])) { - options.sourceMapRootpath = match[2]; - } - break; - case 'source-map-basepath': - if (checkArgFunc(arg, match[2])) { - options.sourceMapBasepath = match[2]; - } - break; - case 'source-map-map-inline': - sourceMapFileInline = true; - options.sourceMap = true; - break; - case 'source-map-less-inline': - options.outputSourceFiles = true; - break; - case 'source-map-url': - if (checkArgFunc(arg, match[2])) { - options.sourceMapURL = match[2]; - } - break; - case 'source-map-output-map-file': - if (checkArgFunc(arg, match[2])) { - options.writeSourceMap = function(sourceMapContent) { - writeFile(match[2], sourceMapContent); - }; - } - break; - case 'rp': - case 'rootpath': - if (checkArgFunc(arg, match[2])) { - options.rootpath = match[2].replace(/\\/g, '/'); - } - break; - case "ru": - case "relative-urls": - options.relativeUrls = true; - break; - case "sm": - case "strict-math": - if (checkArgFunc(arg, match[2])) { - options.strictMath = checkBooleanArg(match[2]); - } - break; - case "su": - case "strict-units": - if (checkArgFunc(arg, match[2])) { - options.strictUnits = checkBooleanArg(match[2]); - } - break; - default: - console.log('invalid option ' + arg); - continueProcessing = false; - } - }); - - if (!continueProcessing) { - return; - } - - var name = args[0]; - if (name && name != '-') { -// name = path.resolve(process.cwd(), name); - } - var output = args[1]; - var outputbase = args[1]; - if (output) { - options.sourceMapOutputFilename = output; -// output = path.resolve(process.cwd(), output); - if (warningMessages) { - console.log(warningMessages); - } - } - -// options.sourceMapBasepath = process.cwd(); -// options.sourceMapBasepath = ''; - - if (options.sourceMap === true) { - console.log("output: " + output); - if (!output && !sourceMapFileInline) { - console.log("the sourcemap option only has an optional filename if the css filename is given"); - return; - } - options.sourceMapFullFilename = options.sourceMapOutputFilename + ".map"; - options.sourceMap = less.modules.path.basename(options.sourceMapFullFilename); - } else if (options.sourceMap) { - options.sourceMapOutputFilename = options.sourceMap; - } - - - if (!name) { - console.log("lessc: no inout files"); - console.log(""); - // TODO -// require('../lib/less/lessc_helper').printUsage(); - currentErrorcode = 1; - return; - } - -// var ensureDirectory = function (filepath) { -// var dir = path.dirname(filepath), -// cmd, -// existsSync = fs.existsSync || path.existsSync; -// if (!existsSync(dir)) { -// if (mkdirp === undefined) { -// try {mkdirp = require('mkdirp');} -// catch(e) { mkdirp = null; } -// } -// cmd = mkdirp && mkdirp.sync || fs.mkdirSync; -// cmd(dir); -// } -// }; - - if (options.depends) { - if (!outputbase) { - console.log("option --depends requires an output path to be specified"); - return; - } - console.log(outputbase + ": "); - } - - if (!name) { - console.log('No files present in the fileset'); - quit(1); - } - - var input = null; - try { - input = readFile(name, 'utf-8'); - - } catch (e) { - console.log('lesscss: couldn\'t open file ' + name); - quit(1); - } - - options.filename = name; - var result; - try { - var parser = new less.Parser(options); - parser.parse(input, function (e, root) { - if (e) { - writeError(e, options); - quit(1); - } else { - result = root.toCSS(options); - if (output) { - writeFile(output, result); - console.log("Written to " + output); - } else { - print(result); - } - quit(0); - } - }); - } - catch(e) { - writeError(e, options); - quit(1); - } -}(arguments)); diff --git a/awx/ui/static/lib/less/dist/lessc-rhino-1.7.4.js b/awx/ui/static/lib/less/dist/lessc-rhino-1.7.4.js deleted file mode 100644 index 4ae5b1da27..0000000000 --- a/awx/ui/static/lib/less/dist/lessc-rhino-1.7.4.js +++ /dev/null @@ -1,449 +0,0 @@ -/* Less.js v1.7.4 RHINO | Copyright (c) 2009-2014, Alexis Sellier */ - -/*global name:true, less, loadStyleSheet, os */ - -function formatError(ctx, options) { - options = options || {}; - - var message = ""; - var extract = ctx.extract; - var error = []; - -// var stylize = options.color ? require('./lessc_helper').stylize : function (str) { return str; }; - var stylize = function (str) { return str; }; - - // only output a stack if it isn't a less error - if (ctx.stack && !ctx.type) { return stylize(ctx.stack, 'red'); } - - if (!ctx.hasOwnProperty('index') || !extract) { - return ctx.stack || ctx.message; - } - - if (typeof(extract[0]) === 'string') { - error.push(stylize((ctx.line - 1) + ' ' + extract[0], 'grey')); - } - - if (typeof(extract[1]) === 'string') { - var errorTxt = ctx.line + ' '; - if (extract[1]) { - errorTxt += extract[1].slice(0, ctx.column) + - stylize(stylize(stylize(extract[1][ctx.column], 'bold') + - extract[1].slice(ctx.column + 1), 'red'), 'inverse'); - } - error.push(errorTxt); - } - - if (typeof(extract[2]) === 'string') { - error.push(stylize((ctx.line + 1) + ' ' + extract[2], 'grey')); - } - error = error.join('\n') + stylize('', 'reset') + '\n'; - - message += stylize(ctx.type + 'Error: ' + ctx.message, 'red'); - if (ctx.filename) { - message += stylize(' in ', 'red') + ctx.filename + - stylize(' on line ' + ctx.line + ', column ' + (ctx.column + 1) + ':', 'grey'); - } - - message += '\n' + error; - - if (ctx.callLine) { - message += stylize('from ', 'red') + (ctx.filename || '') + '/n'; - message += stylize(ctx.callLine, 'grey') + ' ' + ctx.callExtract + '/n'; - } - - return message; -} - -function writeError(ctx, options) { - options = options || {}; - if (options.silent) { return; } - var message = formatError(ctx, options); - throw new Error(message); -} - -function loadStyleSheet(sheet, callback, reload, remaining) { - var endOfPath = Math.max(name.lastIndexOf('/'), name.lastIndexOf('\\')), - sheetName = name.slice(0, endOfPath + 1) + sheet.href, - contents = sheet.contents || {}, - input = readFile(sheetName); - - input = input.replace(/^\xEF\xBB\xBF/, ''); - - contents[sheetName] = input; - - var parser = new less.Parser({ - paths: [sheet.href.replace(/[\w\.-]+$/, '')], - contents: contents - }); - parser.parse(input, function (e, root) { - if (e) { - return writeError(e); - } - try { - callback(e, root, input, sheet, { local: false, lastModified: 0, remaining: remaining }, sheetName); - } catch(e) { - writeError(e); - } - }); -} - -less.Parser.fileLoader = function (file, currentFileInfo, callback, env) { - - var href = file; - if (currentFileInfo && currentFileInfo.currentDirectory && !/^\//.test(file)) { - href = less.modules.path.join(currentFileInfo.currentDirectory, file); - } - - var path = less.modules.path.dirname(href); - - var newFileInfo = { - currentDirectory: path + '/', - filename: href - }; - - if (currentFileInfo) { - newFileInfo.entryPath = currentFileInfo.entryPath; - newFileInfo.rootpath = currentFileInfo.rootpath; - newFileInfo.rootFilename = currentFileInfo.rootFilename; - newFileInfo.relativeUrls = currentFileInfo.relativeUrls; - } else { - newFileInfo.entryPath = path; - newFileInfo.rootpath = less.rootpath || path; - newFileInfo.rootFilename = href; - newFileInfo.relativeUrls = env.relativeUrls; - } - - var j = file.lastIndexOf('/'); - if(newFileInfo.relativeUrls && !/^(?:[a-z-]+:|\/)/.test(file) && j != -1) { - var relativeSubDirectory = file.slice(0, j+1); - newFileInfo.rootpath = newFileInfo.rootpath + relativeSubDirectory; // append (sub|sup) directory path of imported file - } - newFileInfo.currentDirectory = path; - newFileInfo.filename = href; - - var data = null; - try { - data = readFile(href); - } catch (e) { - callback({ type: 'File', message: "'" + less.modules.path.basename(href) + "' wasn't found" }); - return; - } - - try { - callback(null, data, href, newFileInfo, { lastModified: 0 }); - } catch (e) { - callback(e, null, href); - } -}; - - -function writeFile(filename, content) { - var fstream = new java.io.FileWriter(filename); - var out = new java.io.BufferedWriter(fstream); - out.write(content); - out.close(); -} - -// Command line integration via Rhino -(function (args) { - - var options = { - depends: false, - compress: false, - cleancss: false, - max_line_len: -1, - optimization: 1, - silent: false, - verbose: false, - lint: false, - paths: [], - color: true, - strictImports: false, - rootpath: '', - relativeUrls: false, - ieCompat: true, - strictMath: false, - strictUnits: false - }; - var continueProcessing = true, - currentErrorcode; - - var checkArgFunc = function(arg, option) { - if (!option) { - print(arg + " option requires a parameter"); - continueProcessing = false; - return false; - } - return true; - }; - - var checkBooleanArg = function(arg) { - var onOff = /^((on|t|true|y|yes)|(off|f|false|n|no))$/i.exec(arg); - if (!onOff) { - print(" unable to parse "+arg+" as a boolean. use one of on/t/true/y/yes/off/f/false/n/no"); - continueProcessing = false; - return false; - } - return Boolean(onOff[2]); - }; - - var warningMessages = ""; - var sourceMapFileInline = false; - - args = args.filter(function (arg) { - var match = arg.match(/^-I(.+)$/); - - if (match) { - options.paths.push(match[1]); - return false; - } - - match = arg.match(/^--?([a-z][0-9a-z-]*)(?:=(.*))?$/i); - if (match) { arg = match[1]; } // was (?:=([^\s]*)), check! - else { return arg; } - - switch (arg) { - case 'v': - case 'version': - console.log("lessc " + less.version.join('.') + " (Less Compiler) [JavaScript]"); - continueProcessing = false; - break; - case 'verbose': - options.verbose = true; - break; - case 's': - case 'silent': - options.silent = true; - break; - case 'l': - case 'lint': - options.lint = true; - break; - case 'strict-imports': - options.strictImports = true; - break; - case 'h': - case 'help': - //TODO -// require('../lib/less/lessc_helper').printUsage(); - continueProcessing = false; - break; - case 'x': - case 'compress': - options.compress = true; - break; - case 'M': - case 'depends': - options.depends = true; - break; - case 'yui-compress': - warningMessages += "yui-compress option has been removed. assuming clean-css."; - options.cleancss = true; - break; - case 'clean-css': - options.cleancss = true; - break; - case 'max-line-len': - if (checkArgFunc(arg, match[2])) { - options.maxLineLen = parseInt(match[2], 10); - if (options.maxLineLen <= 0) { - options.maxLineLen = -1; - } - } - break; - case 'no-color': - options.color = false; - break; - case 'no-ie-compat': - options.ieCompat = false; - break; - case 'no-js': - options.javascriptEnabled = false; - break; - case 'include-path': - if (checkArgFunc(arg, match[2])) { - options.paths = match[2].split(os.type().match(/Windows/) ? ';' : ':') - .map(function(p) { - if (p) { -// return path.resolve(process.cwd(), p); - return p; - } - }); - } - break; - case 'O0': options.optimization = 0; break; - case 'O1': options.optimization = 1; break; - case 'O2': options.optimization = 2; break; - case 'line-numbers': - if (checkArgFunc(arg, match[2])) { - options.dumpLineNumbers = match[2]; - } - break; - case 'source-map': - if (!match[2]) { - options.sourceMap = true; - } else { - options.sourceMap = match[2]; - } - break; - case 'source-map-rootpath': - if (checkArgFunc(arg, match[2])) { - options.sourceMapRootpath = match[2]; - } - break; - case 'source-map-basepath': - if (checkArgFunc(arg, match[2])) { - options.sourceMapBasepath = match[2]; - } - break; - case 'source-map-map-inline': - sourceMapFileInline = true; - options.sourceMap = true; - break; - case 'source-map-less-inline': - options.outputSourceFiles = true; - break; - case 'source-map-url': - if (checkArgFunc(arg, match[2])) { - options.sourceMapURL = match[2]; - } - break; - case 'source-map-output-map-file': - if (checkArgFunc(arg, match[2])) { - options.writeSourceMap = function(sourceMapContent) { - writeFile(match[2], sourceMapContent); - }; - } - break; - case 'rp': - case 'rootpath': - if (checkArgFunc(arg, match[2])) { - options.rootpath = match[2].replace(/\\/g, '/'); - } - break; - case "ru": - case "relative-urls": - options.relativeUrls = true; - break; - case "sm": - case "strict-math": - if (checkArgFunc(arg, match[2])) { - options.strictMath = checkBooleanArg(match[2]); - } - break; - case "su": - case "strict-units": - if (checkArgFunc(arg, match[2])) { - options.strictUnits = checkBooleanArg(match[2]); - } - break; - default: - console.log('invalid option ' + arg); - continueProcessing = false; - } - }); - - if (!continueProcessing) { - return; - } - - var name = args[0]; - if (name && name != '-') { -// name = path.resolve(process.cwd(), name); - } - var output = args[1]; - var outputbase = args[1]; - if (output) { - options.sourceMapOutputFilename = output; -// output = path.resolve(process.cwd(), output); - if (warningMessages) { - console.log(warningMessages); - } - } - -// options.sourceMapBasepath = process.cwd(); -// options.sourceMapBasepath = ''; - - if (options.sourceMap === true) { - console.log("output: " + output); - if (!output && !sourceMapFileInline) { - console.log("the sourcemap option only has an optional filename if the css filename is given"); - return; - } - options.sourceMapFullFilename = options.sourceMapOutputFilename + ".map"; - options.sourceMap = less.modules.path.basename(options.sourceMapFullFilename); - } else if (options.sourceMap) { - options.sourceMapOutputFilename = options.sourceMap; - } - - - if (!name) { - console.log("lessc: no inout files"); - console.log(""); - // TODO -// require('../lib/less/lessc_helper').printUsage(); - currentErrorcode = 1; - return; - } - -// var ensureDirectory = function (filepath) { -// var dir = path.dirname(filepath), -// cmd, -// existsSync = fs.existsSync || path.existsSync; -// if (!existsSync(dir)) { -// if (mkdirp === undefined) { -// try {mkdirp = require('mkdirp');} -// catch(e) { mkdirp = null; } -// } -// cmd = mkdirp && mkdirp.sync || fs.mkdirSync; -// cmd(dir); -// } -// }; - - if (options.depends) { - if (!outputbase) { - console.log("option --depends requires an output path to be specified"); - return; - } - console.log(outputbase + ": "); - } - - if (!name) { - console.log('No files present in the fileset'); - quit(1); - } - - var input = null; - try { - input = readFile(name, 'utf-8'); - - } catch (e) { - console.log('lesscss: couldn\'t open file ' + name); - quit(1); - } - - options.filename = name; - var result; - try { - var parser = new less.Parser(options); - parser.parse(input, function (e, root) { - if (e) { - writeError(e, options); - quit(1); - } else { - result = root.toCSS(options); - if (output) { - writeFile(output, result); - console.log("Written to " + output); - } else { - 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z{t5Q`fbkDUV&DY;H+2uJK5$#! z5B!#je}VtsEqmbg1#Y1DK_p-EpM~LnGgrt \(.*\)$'` - if expr "$link" : '/.*' > /dev/null; then - PRG="$link" - else - PRG=`dirname "$PRG"`"/$link" - fi -done -SAVED="`pwd`" -cd "`dirname \"$PRG\"`/" >&- -APP_HOME="`pwd -P`" -cd "$SAVED" >&- - -CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar - -# Determine the Java command to use to start the JVM. -if [ -n "$JAVA_HOME" ] ; then - if [ -x "$JAVA_HOME/jre/sh/java" ] ; then - # IBM's JDK on AIX uses strange locations for the executables - JAVACMD="$JAVA_HOME/jre/sh/java" - else - JAVACMD="$JAVA_HOME/bin/java" - fi - if [ ! -x "$JAVACMD" ] ; then - die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME - -Please set the JAVA_HOME variable in your environment to match the -location of your Java installation." - fi -else - JAVACMD="java" - which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. - -Please set the JAVA_HOME variable in your environment to match the -location of your Java installation." -fi - -# Increase the maximum file descriptors if we can. -if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then - MAX_FD_LIMIT=`ulimit -H -n` - if [ $? -eq 0 ] ; then - if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then - MAX_FD="$MAX_FD_LIMIT" - fi - ulimit -n $MAX_FD - if [ $? -ne 0 ] ; then - warn "Could not set maximum file descriptor limit: $MAX_FD" - fi - else - warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" - fi -fi - -# For Darwin, add options to specify how the application appears in the dock -if $darwin; then - GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" -fi - -# For Cygwin, switch paths to Windows format before running java -if $cygwin ; then - APP_HOME=`cygpath --path --mixed "$APP_HOME"` - CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` - - # We build the pattern for arguments to be converted via cygpath - ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` - SEP="" - for dir in $ROOTDIRSRAW ; do - ROOTDIRS="$ROOTDIRS$SEP$dir" - SEP="|" - done - OURCYGPATTERN="(^($ROOTDIRS))" - # Add a user-defined pattern to the cygpath arguments - if [ "$GRADLE_CYGPATTERN" != "" ] ; then - OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" - fi - # Now convert the arguments - kludge to limit ourselves to /bin/sh - i=0 - for arg in "$@" ; do - CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` - CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option - - if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition - eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` - else - eval `echo args$i`="\"$arg\"" - fi - i=$((i+1)) - done - case $i in - (0) set -- ;; - (1) set -- "$args0" ;; - (2) set -- "$args0" "$args1" ;; - (3) set -- "$args0" "$args1" "$args2" ;; - (4) set -- "$args0" "$args1" "$args2" "$args3" ;; - (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; - (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; - (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; - (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; - (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; - esac -fi - -# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules -function splitJvmOpts() { - JVM_OPTS=("$@") -} -eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS -JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME" - -exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@" diff --git a/awx/ui/static/lib/less/gradlew.bat b/awx/ui/static/lib/less/gradlew.bat deleted file mode 100644 index aec99730b4..0000000000 --- a/awx/ui/static/lib/less/gradlew.bat +++ /dev/null @@ -1,90 +0,0 @@ -@if "%DEBUG%" == "" @echo off -@rem ########################################################################## -@rem -@rem Gradle startup script for Windows -@rem -@rem ########################################################################## - -@rem Set local scope for the variables with windows NT shell -if "%OS%"=="Windows_NT" setlocal - -@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. -set DEFAULT_JVM_OPTS= - -set DIRNAME=%~dp0 -if "%DIRNAME%" == "" set DIRNAME=. -set APP_BASE_NAME=%~n0 -set APP_HOME=%DIRNAME% - -@rem Find java.exe -if defined JAVA_HOME goto findJavaFromJavaHome - -set JAVA_EXE=java.exe -%JAVA_EXE% -version >NUL 2>&1 -if "%ERRORLEVEL%" == "0" goto init - -echo. -echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. -echo. -echo Please set the JAVA_HOME variable in your environment to match the -echo location of your Java installation. - -goto fail - -:findJavaFromJavaHome -set JAVA_HOME=%JAVA_HOME:"=% -set JAVA_EXE=%JAVA_HOME%/bin/java.exe - -if exist "%JAVA_EXE%" goto init - -echo. -echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% -echo. -echo Please set the JAVA_HOME variable in your environment to match the -echo location of your Java installation. - -goto fail - -:init -@rem Get command-line arguments, handling Windowz variants - -if not "%OS%" == "Windows_NT" goto win9xME_args -if "%@eval[2+2]" == "4" goto 4NT_args - -:win9xME_args -@rem Slurp the command line arguments. -set CMD_LINE_ARGS= -set _SKIP=2 - -:win9xME_args_slurp -if "x%~1" == "x" goto execute - -set CMD_LINE_ARGS=%* -goto execute - -:4NT_args -@rem Get arguments from the 4NT Shell from JP Software -set CMD_LINE_ARGS=%$ - -:execute -@rem Setup the command line - -set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar - -@rem Execute Gradle -"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% - -:end -@rem End local scope for the variables with windows NT shell -if "%ERRORLEVEL%"=="0" goto mainEnd - -:fail -rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of -rem the _cmd.exe /c_ return code! -if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 -exit /b 1 - -:mainEnd -if "%OS%"=="Windows_NT" endlocal - -:omega diff --git a/awx/ui/static/lib/socket.io-client.old/.bower.json b/awx/ui/static/lib/socket.io-client.old/.bower.json deleted file mode 100644 index 1a3a2b0401..0000000000 --- a/awx/ui/static/lib/socket.io-client.old/.bower.json +++ /dev/null @@ -1,15 +0,0 @@ -{ - "name": "socket.io-client", - "homepage": "https://github.com/LearnBoost/socket.io-client", - "version": "1.0.6", - "_release": "1.0.6", - "_resolution": { - "type": "version", - "tag": "1.0.6", - "commit": "109e3c5b498dc873455e69efd8882b97923cef91" - }, - "_source": "git://github.com/LearnBoost/socket.io-client.git", - "_target": "~1.0.6", - "_originalSource": "socket.io-client", - "_direct": true -} \ No newline at end of file diff --git a/awx/ui/static/lib/socket.io-client.old/.gitignore b/awx/ui/static/lib/socket.io-client.old/.gitignore deleted file mode 100644 index 7bbe1a3f5a..0000000000 --- a/awx/ui/static/lib/socket.io-client.old/.gitignore +++ /dev/null @@ -1,2 +0,0 @@ -/node_modules -/coverage diff --git a/awx/ui/static/lib/socket.io-client.old/.npmignore b/awx/ui/static/lib/socket.io-client.old/.npmignore deleted file mode 100644 index eb949ae94c..0000000000 --- a/awx/ui/static/lib/socket.io-client.old/.npmignore +++ /dev/null @@ -1,2 +0,0 @@ -test -support diff --git a/awx/ui/static/lib/socket.io-client.old/.travis.yml b/awx/ui/static/lib/socket.io-client.old/.travis.yml deleted file mode 100644 index fb7faf3a8b..0000000000 --- a/awx/ui/static/lib/socket.io-client.old/.travis.yml +++ /dev/null @@ -1,16 +0,0 @@ -language: node_js -node_js: -- '0.10' -- '0.11' -matrix: - fast_finish: true - allow_failures: - - node_js: '0.11' -notifications: - irc: irc.freenode.org#socket.io -env: - global: - - secure: wn0UtEtmR0+5ecvr8mXaLJey5XZ4a3j2f5EDoBW0ItALKixqRR6wCrdplwp9MMEDGuer11byIy2YJ+HRazgpcdf+3IuHmSvLb5IItbAaEwcjskawarGcYQO8Gy6GffkbYLFsjEhlkFk9+yXPJuws9msY2+9Y0IymgY8rT9O4D98= - - secure: f5EAsqnJNW//oUgShxSGcDQsz6NUbwfkZCKoPymTamjyK69N5/Q70MQ5UrF3gih3ZiwWDK7Cd6T394vU+Jdrf+LdOdzgef3sz8YJbF3HiOOLp5tYuFVOtOMCBkefdJ/JkqFvrBQUgo3klSD6jUz2SdRlwi33iYlYO8mleO8IxRo= - - secure: 0ah52GLAyJYZwJpnYbTscXgSuSoRLQBj/X0mZeeNGofPbQdWyhQoyBJMq77cTZJQ0mPKd3acojRH5DzYO5q0sMMPkN5mW3couqlyMk94PoYgaiTYRj7dzPnegi1myeVTioX9jomwkh1j+kg1diIHz+VHOgp9n7u595F0HnVXRwA= - - secure: MFEtLhbKZKQDsU9h6dXLRSSZfBUWRJgVV4pucS0bSVA4SZ3Cqq405mg83EiUCww0L0jMXkKKojxcbNl5aHHIzWtTDJTiDw1ifQrIWsbSZ4IPFixd98hU9N7fI4BkEiNhN2j5W4iF+52GDr6Msuy9+6bbuUXEWcJnhjrJ4ePNlBs= diff --git a/awx/ui/static/lib/socket.io-client.old/.zuul.yml b/awx/ui/static/lib/socket.io-client.old/.zuul.yml deleted file mode 100644 index 97c7b000da..0000000000 --- a/awx/ui/static/lib/socket.io-client.old/.zuul.yml +++ /dev/null @@ -1,19 +0,0 @@ -ui: mocha-bdd -server: ./test/support/server.js -browsers: - - name: chrome - version: 29..latest - - name: firefox - version: latest - - name: safari - version: latest - - name: ie - version: 10 - platform: Windows 2012 - - name: ie - version: [6..9, latest] - - name: iphone - version: 6.0..latest - - name: android - version: oldest..latest - version: 5.1 diff --git a/awx/ui/static/lib/socket.io-client.old/History.md b/awx/ui/static/lib/socket.io-client.old/History.md deleted file mode 100644 index 7f45b2b948..0000000000 --- a/awx/ui/static/lib/socket.io-client.old/History.md +++ /dev/null @@ -1,306 +0,0 @@ - -1.0.6 / 2014-06-19 -================== - - * test fixes on internet explorer - * fixes for duplicate event propagation from manager instance [Rase-] - -1.0.5 / 2014-06-16 -================== - - * package: bump `engine.io-client` for better deps and smaller build - * handle io.connect(null, opts) correctly [audreyt] - * url: fix incorrect ports in certain connections [holic] - * manager: propagate all reconnection events to sockets [Rase-] - * index: added BC for `force new connection` - * socket: fix event buffering while in disconnected state [kevin-roark] - * package: stop using tarballs in dependencies [reid] - * manager: relay `connect_error` and `connect_timeout` to sockets - -1.0.4 / 2014-06-02 -================== - - * update build - -1.0.3 / 2014-05-31 -================== - - * package; bump `socket.io-parser` for binary ACK fix - * package: bump `engine.io-client` for binary UTF8 fix - -1.0.2 / 2014-05-28 -================== - - * package: bump `socket.io-parser` for windows fix - -1.0.1 / 2014-05-28 -================== - - * override npm tag - -1.0.0 / 2014-05-28 -================== - - * stable release - -1.0.0-pre5 / 2014-05-22 -======================= - - * package: bump `engine.io-client` for parser fixes - -1.0.0-pre4 / 2014-05-19 -======================= - - * build - -1.0.0-pre3 / 2014-05-17 -======================= - - * package: bump parser - * package: bump engine.io-client - -1.0.0-pre2 / 2014-04-27 -======================= - - * package: bump `engine.io-client` - * package: bump `zuul` - * allows user-level query string parameters to be in socket.request - * package: bump `socket.io-parser` - * package: bump `engine.io-client` for android fix - * tidy up .gitignore - -1.0.0-pre / 2014-03-14 -====================== - - * implemented `engine.io-client` - * implemented `socket.io-parser` - * implemented `json3` to avoid env pollution - * implemented `debug` - * added binary support - * added `browserify` support - -0.9.11 / 2012-11-02 -=================== - - * Enable use of 'xhr' transport in Node.js - * Fix the problem with disconnecting xhr-polling users - * Add should to devDependencies - * Prefer XmlHttpRequest if CORS is available - * Make client compatible with AMD loaders. - -0.9.10 / 2012-08-10 -=================== - - * fix removeAllListeners to behave as expected. - * set withCredentials to true only if xdomain. - * socket: disable disconnect on unload by default. - -0.9.9 / 2012-08-01 -================== - - * socket: fixed disconnect xhr url and made it actually sync - * *: bump xmlhttprequest dep - -0.9.8 / 2012-07-24 -================== - - * Fixed build. - -0.9.7 / 2012-07-24 -================== - - * iOS websocket crash fix. - * Fixed potential `open` collision. - * Fixed disconnectSync. - -0.9.6 / 2012-04-17 -================== - - * Don't position the jsonp form off the screen (android fix). - -0.9.5 / 2012-04-05 -================== - - * Bumped version. - -0.9.4 / 2012-04-01 -================== - - * Fixes polling loop upon reconnect advice (fixes #438). - -0.9.3 / 2012-03-28 -================== - - * Fix XHR.check, which was throwing an error transparently and causing non-IE browsers to fall back to JSONP [mikito] - * Fixed forced disconnect on window close [zzzaaa] - -0.9.2 / 2012-03-13 -================== - - * Transport order set by "options" [zzzaaa] - -0.9.1-1 / 2012-03-02 -==================== - - * Fixed active-x-obfuscator NPM dependency. - -0.9.1 / 2012-03-02 -================== - - * Misc corrections. - * Added warning within Firefox about webworker test in test runner. - * Update ws dependency [einaros] - * Implemented client side heartbeat checks. [felixge] - * Improved Firewall support with ActiveX obfuscation. [felixge] - * Fixed error handling during connection process. [Outsideris] - -0.9.0 / 2012-02-26 -================== - - * Added DS_Store to gitignore. - * Updated depedencies. - * Bumped uglify - * Tweaking code so it doesn't throw an exception when used inside a WebWorker in Firefox - * Do not rely on Array.prototype.indexOf as it breaks with pages that use the Prototype.js library. - * Windows support landed - * Use @einaros ws module instead of the old crap one - * Fix for broken closeTimeout and 'IE + xhr' goes into infinite loop on disconnection - * Disabled reconnection on error if reconnect option is set to false - * Set withCredentials to true before xhr to fix authentication - * Clears the timeout from reconnection attempt when there is a successful or failed reconnection. - This fixes the issue of setTimeout's carrying over from previous reconnection - and changing (skipping) values of self.reconnectionDelay in the newer reconnection. - * Removed decoding of parameters when chunking the query string. - This was used later on to construct the url to post to the socket.io server - for connection and if we're adding custom parameters of our own to this url - (for example for OAuth authentication) they were being sent decoded, which is wrong. - -0.8.7 / 2011-11-05 -================== - - * Bumped client - -0.8.6 / 2011-10-27 -================== - - * Added WebWorker support. - * Fixed swfobject and web_socket.js to not assume window. - * Fixed CORS detection for webworker. - * Fix `defer` for webkit in a webworker. - * Fixed io.util.request to not rely on window. - * FIxed; use global instead of window and dont rely on document. - * Fixed; JSON-P handshake if CORS is not available. - * Made underlying Transport disconnection trigger immediate socket.io disconnect. - * Fixed warning when compressing with Google Closure Compiler. - * Fixed builder's uglify utf-8 support. - * Added workaround for loading indicator in FF jsonp-polling. [3rd-Eden] - * Fixed host discovery lookup. [holic] - * Fixed close timeout when disconnected/reconnecting. [jscharlach] - * Fixed jsonp-polling feature detection. - * Fixed jsonp-polling client POSTing of \n. - * Fixed test runner on IE6/7 - -0.8.5 / 2011-10-07 -================== - - * Bumped client - -0.8.4 / 2011-09-06 -================== - - * Corrected build - -0.8.3 / 2011-09-03 -================== - - * Fixed `\n` parsing for non-JSON packets. - * Fixed; make Socket.IO XHTML doctype compatible (fixes #460 from server) - * Fixed support for Node.JS running `socket.io-client`. - * Updated repository name in `package.json`. - * Added support for different policy file ports without having to port - forward 843 on the server side [3rd-Eden] - -0.8.2 / 2011-08-29 -================== - - * Fixed flashsocket detection. - -0.8.1 / 2011-08-29 -================== - - * Bump version. - -0.8.0 / 2011-08-28 -================== - - * Added MozWebSocket support (hybi-10 doesn't require API changes) [einaros]. - -0.7.11 / 2011-08-27 -=================== - - * Corrected previous release (missing build). - -0.7.10 / 2011-08-27 -=================== - - * Fix for failing fallback in websockets - -0.7.9 / 2011-08-12 -================== - - * Added check on `Socket#onConnect` to prevent double `connect` events on the main manager. - * Fixed socket namespace connect test. Remove broken alternative namespace connect test. - * Removed test handler for removed test. - * Bumped version to match `socket.io` server. - -0.7.5 / 2011-08-08 -================== - - * Added querystring support for `connect` [3rd-Eden] - * Added partial Node.JS transports support [3rd-Eden, josephg] - * Fixed builder test. - * Changed `util.inherit` to replicate Object.create / __proto__. - * Changed and cleaned up some acceptance tests. - * Fixed race condition with a test that could not be run multiple times. - * Added test for encoding a payload. - * Added the ability to override the transport to use in acceptance test [3rd-Eden] - * Fixed multiple connect packets [DanielBaulig] - * Fixed jsonp-polling over-buffering [3rd-Eden] - * Fixed ascii preservation in minified socket.io client [3rd-Eden] - * Fixed socket.io in situations where the page is not served through utf8. - * Fixed namespaces not reconnecting after disconnect [3rd-Eden] - * Fixed default port for secure connections. - -0.7.4 / 2011-07-12 -================== - - * Added `SocketNamespace#of` shortcut. [3rd-Eden] - * Fixed a IE payload decoding bug. [3rd-Eden] - * Honor document protocol, unless overriden. [dvv] - * Fixed new builder dependencies. [3rd-Eden] - -0.7.3 / 2011-06-30 -================== - - * Fixed; acks don't depend on arity. They're automatic for `.send` and - callback based for `.emit`. [dvv] - * Added support for sub-sockets authorization. [3rd-Eden] - * Added BC support for `new io.connect`. [fat] - * Fixed double `connect` events. [3rd-Eden] - * Fixed reconnection with jsonp-polling maintaining old sessionid. [franck34] - -0.7.2 / 2011-06-22 -================== - - * Added `noop` message type. - -0.7.1 / 2011-06-21 -================== - - * Bumped socket.io dependency version for acceptance tests. - -0.7.0 / 2011-06-21 -================== - - * http://socket.io/announcement.html - diff --git a/awx/ui/static/lib/socket.io-client.old/Makefile b/awx/ui/static/lib/socket.io-client.old/Makefile deleted file mode 100644 index 5c0771b683..0000000000 --- a/awx/ui/static/lib/socket.io-client.old/Makefile +++ /dev/null @@ -1,21 +0,0 @@ - -REPORTER = dot - -build: socket.io.js - -socket.io.js: lib/*.js package.json - @./support/browserify.sh > socket.io.js - -test: - @./node_modules/.bin/mocha \ - --reporter $(REPORTER) \ - --bail \ - test/index.js - @./node_modules/.bin/zuul -- test/index.js - -test-cov: - @./node_modules/.bin/istanbul cover ./node_modules/.bin/_mocha -- \ - --reporter $(REPORTER) \ - test/ - -.PHONY: test diff --git a/awx/ui/static/lib/socket.io-client.old/README.md b/awx/ui/static/lib/socket.io-client.old/README.md deleted file mode 100644 index f8152c552b..0000000000 --- a/awx/ui/static/lib/socket.io-client.old/README.md +++ /dev/null @@ -1,163 +0,0 @@ - -# socket.io-client - -[![Build Status](https://secure.travis-ci.org/Automattic/socket.io-client.png)](http://travis-ci.org/Automattic/socket.io-client) -[![NPM version](https://badge.fury.io/js/socket.io-client.png)](http://badge.fury.io/js/socket.io-client) - -## How to use - -A standalone build of `socket.io-client` is exposed automatically by the -socket.io server as `/socket.io/socket.io.js`. Alternatively you can -serve the file `socket.io.js` found at the root of this repository. - -```html - - -``` - -Socket.IO is compatible with [browserify](http://browserify.org/). - -### Node.JS (server-side usage) - - Add `socket.io-client` to your `package.json` and then: - - ```js - var socket = require('socket.io-client')('http://localhost'); - socket.on('connect', function(){ - socket.on('event', function(data){}); - socket.on('disconnect', function(){}); - }); - ``` - -## API - -### IO(url:String, opts:Object):Socket - - Exposed as the `io` namespace in the standalone build, or the result - of calling `require('socket.io-client')`. - - When called, it creates a new `Manager` for the given URL, and attempts - to reuse an existing `Manager` for subsequent calls, unless the - `multiplex` option is passed with `false`. - - The rest of the options are passed to the `Manager` constructor (see below - for details). - - A `Socket` instance is returned for the namespace specified by the - pathname in the URL, defaulting to `/`. For example, if the `url` is - `http://localhost/users`, a transport connection will be established to - `http://localhost` and a Socket.IO connection will be established to - `/users`. - -### IO#protocol - - Socket.io protocol revision number this client works with. - -### IO#Socket - - Reference to the `Socket` constructor. - -### IO#Manager - - Reference to the `Manager` constructor. - -### IO#Emitter - - Reference to the `Emitter` constructor. - -### Manager(url:String, opts:Object) - - A `Manager` represents a connection to a given Socket.IO server. One or - more `Socket` instances are associated with the manager. The manager - can be accessed through the `io` property of each `Socket` instance. - - The `opts` are also passed to `engine.io` upon initialization of the - underlying `Socket`. - - Options: - - `reconnection` whether to reconnect automatically (`true`) - - `reconnectionDelay` how long to wait before attempting a new - reconnection (`1000`) - - `reconnectionDelayMax` maximum amount of time to wait between - reconnections (`5000`). Each attempt increases the reconnection by - the amount specified by `reconnectionDelay`. - - `timeout` connection timeout before a `connect_error` - and `connect_timeout` events are emitted (`20000`) - -#### Events - - - `connect`. Fired upon a successful connection. - - `connect_error`. Fired upon a connection error. - Parameters: - - `Object` error object - - `connect_timeout`. Fired upon a connection timeout. - - `reconnect`. Fired upon a successful reconnection. - Parameters: - - `Number` reconnection attempt number - - `reconnect_attempt`. Fired upon an attempt to reconnect. - - `reconnecting`. Fired upon an attempt to reconnect. - Parameters: - - `Number` reconnection attempt number - - `reconnect_error`. Fired upon a reconnection attempt error. - Parameters: - - `Object` error object - - `reconnect_failed`. Fired when couldn't reconnect within `reconnectionAttempts` - -The events above are also emitted on the individual sockets that -reconnect that depend on this `Manager`. - -### Manager#reconnection(v:Boolean):Manager - - Sets the `reconnection` option, or returns it if no parameters - are passed. - -### Manager#reconnectionAttempts(v:Boolean):Manager - - Sets the `reconnectionAttempts` option, or returns it if no parameters - are passed. - -### Manager#reconnectionDelay(v:Boolean):Manager - - Sets the `reconectionDelay` option, or returns it if no parameters - are passed. - -### Manager#reconnectionDelayMax(v:Boolean):Manager - - Sets the `reconectionDelayMax` option, or returns it if no parameters - are passed. - -### Manager#timeout(v:Boolean):Manager - - Sets the `timeout` option, or returns it if no parameters - are passed. - -### Socket - -#### Events - - - `connect`. Fired upon connecting. - - `error`. Fired upon a connection error - Parameters: - - `Object` error data - - `disconnect`. Fired upon a disconnection. - - `reconnect`. Fired upon a successful reconnection. - Parameters: - - `Number` reconnection attempt number - - `reconnect_attempt`. Fired upon an attempt to reconnect. - - `reconnecting`. Fired upon an attempt to reconnect. - Parameters: - - `Number` reconnection attempt number - - `reconnect_error`. Fired upon a reconnection attempt error. - Parameters: - - `Object` error object - - `reconnect_failed`. Fired when couldn't reconnect within `reconnectionAttempts` - -## License - -MIT diff --git a/awx/ui/static/lib/socket.io-client.old/index.js b/awx/ui/static/lib/socket.io-client.old/index.js deleted file mode 100644 index 887727fdea..0000000000 --- a/awx/ui/static/lib/socket.io-client.old/index.js +++ /dev/null @@ -1,2 +0,0 @@ - -module.exports = require('./lib/'); diff --git a/awx/ui/static/lib/socket.io-client.old/lib/index.js b/awx/ui/static/lib/socket.io-client.old/lib/index.js deleted file mode 100644 index 17d81f193c..0000000000 --- a/awx/ui/static/lib/socket.io-client.old/lib/index.js +++ /dev/null @@ -1,87 +0,0 @@ - -/** - * Module dependencies. - */ - -var url = require('./url'); -var parser = require('socket.io-parser'); -var Manager = require('./manager'); -var debug = require('debug')('socket.io-client'); - -/** - * Module exports. - */ - -module.exports = exports = lookup; - -/** - * Managers cache. - */ - -var cache = exports.managers = {}; - -/** - * Looks up an existing `Manager` for multiplexing. - * If the user summons: - * - * `io('http://localhost/a');` - * `io('http://localhost/b');` - * - * We reuse the existing instance based on same scheme/port/host, - * and we initialize sockets for each namespace. - * - * @api public - */ - -function lookup(uri, opts) { - if (typeof uri == 'object') { - opts = uri; - uri = undefined; - } - - opts = opts || {}; - - var parsed = url(uri); - var source = parsed.source; - var id = parsed.id; - var io; - - if (opts.forceNew || opts['force new connection'] || false === opts.multiplex) { - debug('ignoring socket cache for %s', source); - io = Manager(source, opts); - } else { - if (!cache[id]) { - debug('new io instance for %s', source); - cache[id] = Manager(source, opts); - } - io = cache[id]; - } - - return io.socket(parsed.path); -} - -/** - * Protocol version. - * - * @api public - */ - -exports.protocol = parser.protocol; - -/** - * `connect`. - * - * @param {String} uri - * @api public - */ - -exports.connect = lookup; - -/** - * Expose constructors for standalone build. - * - * @api public - */ - -exports.Manager = require('./manager'); -exports.Socket = require('./socket'); diff --git a/awx/ui/static/lib/socket.io-client.old/lib/manager.js b/awx/ui/static/lib/socket.io-client.old/lib/manager.js deleted file mode 100644 index 81b9362fc6..0000000000 --- a/awx/ui/static/lib/socket.io-client.old/lib/manager.js +++ /dev/null @@ -1,456 +0,0 @@ - -/** - * Module dependencies. - */ - -var url = require('./url'); -var eio = require('engine.io-client'); -var Socket = require('./socket'); -var Emitter = require('component-emitter'); -var parser = require('socket.io-parser'); -var on = require('./on'); -var bind = require('component-bind'); -var object = require('object-component'); -var debug = require('debug')('socket.io-client:manager'); - -/** - * Module exports - */ - -module.exports = Manager; - -/** - * `Manager` constructor. - * - * @param {String} engine instance or engine uri/opts - * @param {Object} options - * @api public - */ - -function Manager(uri, opts){ - if (!(this instanceof Manager)) return new Manager(uri, opts); - if (uri && ('object' == typeof uri)) { - opts = uri; - uri = undefined; - } - opts = opts || {}; - - opts.path = opts.path || '/socket.io'; - this.nsps = {}; - this.subs = []; - this.opts = opts; - this.reconnection(opts.reconnection !== false); - this.reconnectionAttempts(opts.reconnectionAttempts || Infinity); - this.reconnectionDelay(opts.reconnectionDelay || 1000); - this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000); - this.timeout(null == opts.timeout ? 20000 : opts.timeout); - this.readyState = 'closed'; - this.uri = uri; - this.connected = 0; - this.attempts = 0; - this.encoding = false; - this.packetBuffer = []; - this.encoder = new parser.Encoder(); - this.decoder = new parser.Decoder(); - this.open(); -} - -/** - * Propagate given event to sockets and emit on `this` - * - * @api private - */ - -Manager.prototype.emitAll = function() { - this.emit.apply(this, arguments); - for (var nsp in this.nsps) { - this.nsps[nsp].emit.apply(this.nsps[nsp], arguments); - } -}; - -/** - * Mix in `Emitter`. - */ - -Emitter(Manager.prototype); - -/** - * Sets the `reconnection` config. - * - * @param {Boolean} true/false if it should automatically reconnect - * @return {Manager} self or value - * @api public - */ - -Manager.prototype.reconnection = function(v){ - if (!arguments.length) return this._reconnection; - this._reconnection = !!v; - return this; -}; - -/** - * Sets the reconnection attempts config. - * - * @param {Number} max reconnection attempts before giving up - * @return {Manager} self or value - * @api public - */ - -Manager.prototype.reconnectionAttempts = function(v){ - if (!arguments.length) return this._reconnectionAttempts; - this._reconnectionAttempts = v; - return this; -}; - -/** - * Sets the delay between reconnections. - * - * @param {Number} delay - * @return {Manager} self or value - * @api public - */ - -Manager.prototype.reconnectionDelay = function(v){ - if (!arguments.length) return this._reconnectionDelay; - this._reconnectionDelay = v; - return this; -}; - -/** - * Sets the maximum delay between reconnections. - * - * @param {Number} delay - * @return {Manager} self or value - * @api public - */ - -Manager.prototype.reconnectionDelayMax = function(v){ - if (!arguments.length) return this._reconnectionDelayMax; - this._reconnectionDelayMax = v; - return this; -}; - -/** - * Sets the connection timeout. `false` to disable - * - * @return {Manager} self or value - * @api public - */ - -Manager.prototype.timeout = function(v){ - if (!arguments.length) return this._timeout; - this._timeout = v; - return this; -}; - -/** - * Starts trying to reconnect if reconnection is enabled and we have not - * started reconnecting yet - * - * @api private - */ - -Manager.prototype.maybeReconnectOnOpen = function() { - if (!this.openReconnect && !this.reconnecting && this._reconnection) { - // keeps reconnection from firing twice for the same reconnection loop - this.openReconnect = true; - this.reconnect(); - } -}; - - -/** - * Sets the current transport `socket`. - * - * @param {Function} optional, callback - * @return {Manager} self - * @api public - */ - -Manager.prototype.open = -Manager.prototype.connect = function(fn){ - debug('readyState %s', this.readyState); - if (~this.readyState.indexOf('open')) return this; - - debug('opening %s', this.uri); - this.engine = eio(this.uri, this.opts); - var socket = this.engine; - var self = this; - this.readyState = 'opening'; - - // emit `open` - var openSub = on(socket, 'open', function() { - self.onopen(); - fn && fn(); - }); - - // emit `connect_error` - var errorSub = on(socket, 'error', function(data){ - debug('connect_error'); - self.cleanup(); - self.readyState = 'closed'; - self.emitAll('connect_error', data); - if (fn) { - var err = new Error('Connection error'); - err.data = data; - fn(err); - } - - self.maybeReconnectOnOpen(); - }); - - // emit `connect_timeout` - if (false !== this._timeout) { - var timeout = this._timeout; - debug('connect attempt will timeout after %d', timeout); - - // set timer - var timer = setTimeout(function(){ - debug('connect attempt timed out after %d', timeout); - openSub.destroy(); - socket.close(); - socket.emit('error', 'timeout'); - self.emitAll('connect_timeout', timeout); - }, timeout); - - this.subs.push({ - destroy: function(){ - clearTimeout(timer); - } - }); - } - - this.subs.push(openSub); - this.subs.push(errorSub); - - return this; -}; - -/** - * Called upon transport open. - * - * @api private - */ - -Manager.prototype.onopen = function(){ - debug('open'); - - // clear old subs - this.cleanup(); - - // mark as open - this.readyState = 'open'; - this.emit('open'); - - // add new subs - var socket = this.engine; - this.subs.push(on(socket, 'data', bind(this, 'ondata'))); - this.subs.push(on(this.decoder, 'decoded', bind(this, 'ondecoded'))); - this.subs.push(on(socket, 'error', bind(this, 'onerror'))); - this.subs.push(on(socket, 'close', bind(this, 'onclose'))); -}; - -/** - * Called with data. - * - * @api private - */ - -Manager.prototype.ondata = function(data){ - this.decoder.add(data); -}; - -/** - * Called when parser fully decodes a packet. - * - * @api private - */ - -Manager.prototype.ondecoded = function(packet) { - this.emit('packet', packet); -}; - -/** - * Called upon socket error. - * - * @api private - */ - -Manager.prototype.onerror = function(err){ - debug('error', err); - this.emitAll('error', err); -}; - -/** - * Creates a new socket for the given `nsp`. - * - * @return {Socket} - * @api public - */ - -Manager.prototype.socket = function(nsp){ - var socket = this.nsps[nsp]; - if (!socket) { - socket = new Socket(this, nsp); - this.nsps[nsp] = socket; - var self = this; - socket.on('connect', function(){ - self.connected++; - }); - } - return socket; -}; - -/** - * Called upon a socket close. - * - * @param {Socket} socket - */ - -Manager.prototype.destroy = function(socket){ - --this.connected || this.close(); -}; - -/** - * Writes a packet. - * - * @param {Object} packet - * @api private - */ - -Manager.prototype.packet = function(packet){ - debug('writing packet %j', packet); - var self = this; - - if (!self.encoding) { - // encode, then write to engine with result - self.encoding = true; - this.encoder.encode(packet, function(encodedPackets) { - for (var i = 0; i < encodedPackets.length; i++) { - self.engine.write(encodedPackets[i]); - } - self.encoding = false; - self.processPacketQueue(); - }); - } else { // add packet to the queue - self.packetBuffer.push(packet); - } -}; - -/** - * If packet buffer is non-empty, begins encoding the - * next packet in line. - * - * @api private - */ - -Manager.prototype.processPacketQueue = function() { - if (this.packetBuffer.length > 0 && !this.encoding) { - var pack = this.packetBuffer.shift(); - this.packet(pack); - } -}; - -/** - * Clean up transport subscriptions and packet buffer. - * - * @api private - */ - -Manager.prototype.cleanup = function(){ - var sub; - while (sub = this.subs.shift()) sub.destroy(); - - this.packetBuffer = []; - this.encoding = false; - - this.decoder.destroy(); -}; - -/** - * Close the current socket. - * - * @api private - */ - -Manager.prototype.close = -Manager.prototype.disconnect = function(){ - this.skipReconnect = true; - this.engine.close(); -}; - -/** - * Called upon engine close. - * - * @api private - */ - -Manager.prototype.onclose = function(reason){ - debug('close'); - this.cleanup(); - this.readyState = 'closed'; - this.emit('close', reason); - if (this._reconnection && !this.skipReconnect) { - this.reconnect(); - } -}; - -/** - * Attempt a reconnection. - * - * @api private - */ - -Manager.prototype.reconnect = function(){ - if (this.reconnecting) return this; - - var self = this; - this.attempts++; - - if (this.attempts > this._reconnectionAttempts) { - debug('reconnect failed'); - this.emitAll('reconnect_failed'); - this.reconnecting = false; - } else { - var delay = this.attempts * this.reconnectionDelay(); - delay = Math.min(delay, this.reconnectionDelayMax()); - debug('will wait %dms before reconnect attempt', delay); - - this.reconnecting = true; - var timer = setTimeout(function(){ - debug('attempting reconnect'); - self.emitAll('reconnect_attempt', self.attempts); - self.emitAll('reconnecting', self.attempts); - self.open(function(err){ - if (err) { - debug('reconnect attempt error'); - self.reconnecting = false; - self.reconnect(); - self.emitAll('reconnect_error', err.data); - } else { - debug('reconnect success'); - self.onreconnect(); - } - }); - }, delay); - - this.subs.push({ - destroy: function(){ - clearTimeout(timer); - } - }); - } -}; - -/** - * Called upon successful reconnect. - * - * @api private - */ - -Manager.prototype.onreconnect = function(){ - var attempt = this.attempts; - this.attempts = 0; - this.reconnecting = false; - this.emitAll('reconnect', attempt); -}; diff --git a/awx/ui/static/lib/socket.io-client.old/lib/on.js b/awx/ui/static/lib/socket.io-client.old/lib/on.js deleted file mode 100644 index 6be286d5d1..0000000000 --- a/awx/ui/static/lib/socket.io-client.old/lib/on.js +++ /dev/null @@ -1,24 +0,0 @@ - -/** - * Module exports. - */ - -module.exports = on; - -/** - * Helper for subscriptions. - * - * @param {Object|EventEmitter} obj with `Emitter` mixin or `EventEmitter` - * @param {String} event name - * @param {Function} callback - * @api public - */ - -function on(obj, ev, fn) { - obj.on(ev, fn); - return { - destroy: function(){ - obj.removeListener(ev, fn); - } - }; -} diff --git a/awx/ui/static/lib/socket.io-client.old/lib/socket.js b/awx/ui/static/lib/socket.io-client.old/lib/socket.js deleted file mode 100644 index 3ea9d52e3f..0000000000 --- a/awx/ui/static/lib/socket.io-client.old/lib/socket.js +++ /dev/null @@ -1,378 +0,0 @@ - -/** - * Module dependencies. - */ - -var parser = require('socket.io-parser'); -var Emitter = require('component-emitter'); -var toArray = require('to-array'); -var on = require('./on'); -var bind = require('component-bind'); -var debug = require('debug')('socket.io-client:socket'); -var hasBin = require('has-binary-data'); -var indexOf = require('indexof'); - -/** - * Module exports. - */ - -module.exports = exports = Socket; - -/** - * Internal events (blacklisted). - * These events can't be emitted by the user. - * - * @api private - */ - -var events = { - connect: 1, - connect_error: 1, - connect_timeout: 1, - disconnect: 1, - error: 1, - reconnect: 1, - reconnect_attempt: 1, - reconnect_failed: 1, - reconnect_error: 1, - reconnecting: 1 -}; - -/** - * Shortcut to `Emitter#emit`. - */ - -var emit = Emitter.prototype.emit; - -/** - * `Socket` constructor. - * - * @api public - */ - -function Socket(io, nsp){ - this.io = io; - this.nsp = nsp; - this.json = this; // compat - this.ids = 0; - this.acks = {}; - this.open(); - this.receiveBuffer = []; - this.sendBuffer = []; - this.connected = false; - this.disconnected = true; - this.subEvents(); -} - -/** - * Mix in `Emitter`. - */ - -Emitter(Socket.prototype); - -/** - * Subscribe to open, close and packet events - * - * @api private - */ - -Socket.prototype.subEvents = function() { - var io = this.io; - this.subs = [ - on(io, 'open', bind(this, 'onopen')), - on(io, 'packet', bind(this, 'onpacket')), - on(io, 'close', bind(this, 'onclose')) - ]; -}; - -/** - * Called upon engine `open`. - * - * @api private - */ - -Socket.prototype.open = -Socket.prototype.connect = function(){ - if (this.connected) return this; - - this.io.open(); // ensure open - if ('open' == this.io.readyState) this.onopen(); - return this; -}; - -/** - * Sends a `message` event. - * - * @return {Socket} self - * @api public - */ - -Socket.prototype.send = function(){ - var args = toArray(arguments); - args.unshift('message'); - this.emit.apply(this, args); - return this; -}; - -/** - * Override `emit`. - * If the event is in `events`, it's emitted normally. - * - * @param {String} event name - * @return {Socket} self - * @api public - */ - -Socket.prototype.emit = function(ev){ - if (events.hasOwnProperty(ev)) { - emit.apply(this, arguments); - return this; - } - - var args = toArray(arguments); - var parserType = parser.EVENT; // default - if (hasBin(args)) { parserType = parser.BINARY_EVENT; } // binary - var packet = { type: parserType, data: args }; - - // event ack callback - if ('function' == typeof args[args.length - 1]) { - debug('emitting packet with ack id %d', this.ids); - this.acks[this.ids] = args.pop(); - packet.id = this.ids++; - } - - if (this.connected) { - this.packet(packet); - } else { - this.sendBuffer.push(packet); - } - - return this; -}; - -/** - * Sends a packet. - * - * @param {Object} packet - * @api private - */ - -Socket.prototype.packet = function(packet){ - packet.nsp = this.nsp; - this.io.packet(packet); -}; - -/** - * "Opens" the socket. - * - * @api private - */ - -Socket.prototype.onopen = function(){ - debug('transport is open - connecting'); - - // write connect packet if necessary - if ('/' != this.nsp) { - this.packet({ type: parser.CONNECT }); - } -}; - -/** - * Called upon engine `close`. - * - * @param {String} reason - * @api private - */ - -Socket.prototype.onclose = function(reason){ - debug('close (%s)', reason); - this.connected = false; - this.disconnected = true; - this.emit('disconnect', reason); -}; - -/** - * Called with socket packet. - * - * @param {Object} packet - * @api private - */ - -Socket.prototype.onpacket = function(packet){ - if (packet.nsp != this.nsp) return; - - switch (packet.type) { - case parser.CONNECT: - this.onconnect(); - break; - - case parser.EVENT: - this.onevent(packet); - break; - - case parser.BINARY_EVENT: - this.onevent(packet); - break; - - case parser.ACK: - this.onack(packet); - break; - - case parser.BINARY_ACK: - this.onack(packet); - break; - - case parser.DISCONNECT: - this.ondisconnect(); - break; - - case parser.ERROR: - this.emit('error', packet.data); - break; - } -}; - -/** - * Called upon a server event. - * - * @param {Object} packet - * @api private - */ - -Socket.prototype.onevent = function(packet){ - var args = packet.data || []; - debug('emitting event %j', args); - - if (null != packet.id) { - debug('attaching ack callback to event'); - args.push(this.ack(packet.id)); - } - - if (this.connected) { - emit.apply(this, args); - } else { - this.receiveBuffer.push(args); - } -}; - -/** - * Produces an ack callback to emit with an event. - * - * @api private - */ - -Socket.prototype.ack = function(id){ - var self = this; - var sent = false; - return function(){ - // prevent double callbacks - if (sent) return; - sent = true; - var args = toArray(arguments); - debug('sending ack %j', args); - - var type = hasBin(args) ? parser.BINARY_ACK : parser.ACK; - self.packet({ - type: type, - id: id, - data: args - }); - }; -}; - -/** - * Called upon a server acknowlegement. - * - * @param {Object} packet - * @api private - */ - -Socket.prototype.onack = function(packet){ - debug('calling ack %s with %j', packet.id, packet.data); - var fn = this.acks[packet.id]; - fn.apply(this, packet.data); - delete this.acks[packet.id]; -}; - -/** - * Called upon server connect. - * - * @api private - */ - -Socket.prototype.onconnect = function(){ - this.connected = true; - this.disconnected = false; - this.emit('connect'); - this.emitBuffered(); -}; - -/** - * Emit buffered events (received and emitted). - * - * @api private - */ - -Socket.prototype.emitBuffered = function(){ - var i; - for (i = 0; i < this.receiveBuffer.length; i++) { - emit.apply(this, this.receiveBuffer[i]); - } - this.receiveBuffer = []; - - for (i = 0; i < this.sendBuffer.length; i++) { - this.packet(this.sendBuffer[i]); - } - this.sendBuffer = []; -}; - -/** - * Called upon server disconnect. - * - * @api private - */ - -Socket.prototype.ondisconnect = function(){ - debug('server disconnect (%s)', this.nsp); - this.destroy(); - this.onclose('io server disconnect'); -}; - -/** - * Called upon forced client/server side disconnections, - * this method ensures the manager stops tracking us and - * that reconnections don't get triggered for this. - * - * @api private. - */ - -Socket.prototype.destroy = function(){ - // clean subscriptions to avoid reconnections - for (var i = 0; i < this.subs.length; i++) { - this.subs[i].destroy(); - } - - this.io.destroy(this); -}; - -/** - * Disconnects the socket manually. - * - * @return {Socket} self - * @api public - */ - -Socket.prototype.close = -Socket.prototype.disconnect = function(){ - if (!this.connected) return this; - - debug('performing disconnect (%s)', this.nsp); - this.packet({ type: parser.DISCONNECT }); - - // remove socket from pool - this.destroy(); - - // fire events - this.onclose('io client disconnect'); - return this; -}; diff --git a/awx/ui/static/lib/socket.io-client.old/lib/url.js b/awx/ui/static/lib/socket.io-client.old/lib/url.js deleted file mode 100644 index 7779c8b1ce..0000000000 --- a/awx/ui/static/lib/socket.io-client.old/lib/url.js +++ /dev/null @@ -1,71 +0,0 @@ - -/** - * Module dependencies. - */ - -var parseuri = require('parseuri'); -var debug = require('debug')('socket.io-client:url'); - -/** - * Module exports. - */ - -module.exports = url; - -/** - * URL parser. - * - * @param {String} url - * @param {Object} An object meant to mimic window.location. - * Defaults to window.location. - * @api public - */ - -function url(uri, loc){ - var obj = uri; - - // default to window.location - var loc = loc || global.location; - if (null == uri) uri = loc.protocol + '//' + loc.hostname; - - // relative path support - if ('string' == typeof uri) { - if ('/' == uri.charAt(0)) { - if ('undefined' != typeof loc) { - uri = loc.hostname + uri; - } - } - - if (!/^(https?|wss?):\/\//.test(uri)) { - debug('protocol-less url %s', uri); - if ('undefined' != typeof loc) { - uri = loc.protocol + '//' + uri; - } else { - uri = 'https://' + uri; - } - } - - // parse - debug('parse %s', uri); - obj = parseuri(uri); - } - - // make sure we treat `localhost:80` and `localhost` equally - if (!obj.port) { - if (/^(http|ws)$/.test(obj.protocol)) { - obj.port = '80'; - } - else if (/^(http|ws)s$/.test(obj.protocol)) { - obj.port = '443'; - } - } - - obj.path = obj.path || '/'; - - // define unique id - obj.id = obj.protocol + '://' + obj.host + ':' + obj.port; - // define href - obj.href = obj.protocol + '://' + obj.host + (loc && loc.port == obj.port ? '' : (':' + obj.port)); - - return obj; -} diff --git a/awx/ui/static/lib/socket.io-client.old/package.json b/awx/ui/static/lib/socket.io-client.old/package.json deleted file mode 100644 index 3b2c475122..0000000000 --- a/awx/ui/static/lib/socket.io-client.old/package.json +++ /dev/null @@ -1,63 +0,0 @@ -{ - "name": "socket.io-client", - "version": "1.0.6", - "keywords": [ - "realtime", - "framework", - "websocket", - "tcp", - "events", - "client" - ], - "dependencies": { - "debug": "0.7.4", - "engine.io-client": "1.3.1", - "component-bind": "1.0.0", - "component-emitter": "1.1.2", - "object-component": "0.0.3", - "socket.io-parser": "2.2.0", - "has-binary-data": "0.1.1", - "indexof": "0.0.1", - "object-component": "0.0.3", - "parseuri": "0.0.2", - "to-array": "0.1.3" - }, - "devDependencies": { - "socket.io": "1.0.6", - "mocha": "1.16.2", - "zuul": "1.6.3", - "istanbul": "0.2.1", - "expect.js": "0.2.0", - "uglify-js": "2.4.8", - "browserify": "2.35.1", - "base64-arraybuffer": "0.1.0", - "text-blob-builder": "0.0.1", - "has-cors": "1.0.3" - }, - "scripts": { - "test": "make test" - }, - "contributors": [ - { - "name": "Guillermo Rauch", - "email": "rauchg@gmail.com" - }, - { - "name": "Arnout Kazemier", - "email": "info@3rd-eden.com" - }, - { - "name": "Vladimir Dronnikov", - "email": "dronnikov@gmail.com" - }, - { - "name": "Einar Otto Stangvik", - "email": "einaros@gmail.com" - } - ], - "repository": { - "type": "git", - "url": "https://github.com/LearnBoost/socket.io-client.git" - }, - "license": "MIT" -} diff --git a/awx/ui/static/lib/socket.io-client.old/socket.io.js b/awx/ui/static/lib/socket.io-client.old/socket.io.js deleted file mode 100644 index 8f1b2b9a9c..0000000000 --- a/awx/ui/static/lib/socket.io-client.old/socket.io.js +++ /dev/null @@ -1,6172 +0,0 @@ -!function(e){"object"==typeof exports?module.exports=e():"function"==typeof define&&define.amd?define(e):"undefined"!=typeof window?window.io=e():"undefined"!=typeof global?global.io=e():"undefined"!=typeof self&&(self.io=e())}(function(){var define,module,exports; -return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);throw new Error("Cannot find module '"+o+"'")}var f=n[o]={exports:{}};t[o][0].call(f.exports,function(e){var n=t[o][1][e];return s(n?n:e)},f,f.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o 0 && !this.encoding) { - var pack = this.packetBuffer.shift(); - this.packet(pack); - } -}; - -/** - * Clean up transport subscriptions and packet buffer. - * - * @api private - */ - -Manager.prototype.cleanup = function(){ - var sub; - while (sub = this.subs.shift()) sub.destroy(); - - this.packetBuffer = []; - this.encoding = false; - - this.decoder.destroy(); -}; - -/** - * Close the current socket. - * - * @api private - */ - -Manager.prototype.close = -Manager.prototype.disconnect = function(){ - this.skipReconnect = true; - this.engine.close(); -}; - -/** - * Called upon engine close. - * - * @api private - */ - -Manager.prototype.onclose = function(reason){ - debug('close'); - this.cleanup(); - this.readyState = 'closed'; - this.emit('close', reason); - if (this._reconnection && !this.skipReconnect) { - this.reconnect(); - } -}; - -/** - * Attempt a reconnection. - * - * @api private - */ - -Manager.prototype.reconnect = function(){ - if (this.reconnecting) return this; - - var self = this; - this.attempts++; - - if (this.attempts > this._reconnectionAttempts) { - debug('reconnect failed'); - this.emitAll('reconnect_failed'); - this.reconnecting = false; - } else { - var delay = this.attempts * this.reconnectionDelay(); - delay = Math.min(delay, this.reconnectionDelayMax()); - debug('will wait %dms before reconnect attempt', delay); - - this.reconnecting = true; - var timer = setTimeout(function(){ - debug('attempting reconnect'); - self.emitAll('reconnect_attempt', self.attempts); - self.emitAll('reconnecting', self.attempts); - self.open(function(err){ - if (err) { - debug('reconnect attempt error'); - self.reconnecting = false; - self.reconnect(); - self.emitAll('reconnect_error', err.data); - } else { - debug('reconnect success'); - self.onreconnect(); - } - }); - }, delay); - - this.subs.push({ - destroy: function(){ - clearTimeout(timer); - } - }); - } -}; - -/** - * Called upon successful reconnect. - * - * @api private - */ - -Manager.prototype.onreconnect = function(){ - var attempt = this.attempts; - this.attempts = 0; - this.reconnecting = false; - this.emitAll('reconnect', attempt); -}; - -},{"./on":4,"./socket":5,"./url":6,"component-bind":7,"component-emitter":8,"debug":9,"engine.io-client":11,"object-component":37,"socket.io-parser":40}],4:[function(require,module,exports){ - -/** - * Module exports. - */ - -module.exports = on; - -/** - * Helper for subscriptions. - * - * @param {Object|EventEmitter} obj with `Emitter` mixin or `EventEmitter` - * @param {String} event name - * @param {Function} callback - * @api public - */ - -function on(obj, ev, fn) { - obj.on(ev, fn); - return { - destroy: function(){ - obj.removeListener(ev, fn); - } - }; -} - -},{}],5:[function(require,module,exports){ - -/** - * Module dependencies. - */ - -var parser = require('socket.io-parser'); -var Emitter = require('component-emitter'); -var toArray = require('to-array'); -var on = require('./on'); -var bind = require('component-bind'); -var debug = require('debug')('socket.io-client:socket'); -var hasBin = require('has-binary-data'); -var indexOf = require('indexof'); - -/** - * Module exports. - */ - -module.exports = exports = Socket; - -/** - * Internal events (blacklisted). - * These events can't be emitted by the user. - * - * @api private - */ - -var events = { - connect: 1, - connect_error: 1, - connect_timeout: 1, - disconnect: 1, - error: 1, - reconnect: 1, - reconnect_attempt: 1, - reconnect_failed: 1, - reconnect_error: 1, - reconnecting: 1 -}; - -/** - * Shortcut to `Emitter#emit`. - */ - -var emit = Emitter.prototype.emit; - -/** - * `Socket` constructor. - * - * @api public - */ - -function Socket(io, nsp){ - this.io = io; - this.nsp = nsp; - this.json = this; // compat - this.ids = 0; - this.acks = {}; - this.open(); - this.receiveBuffer = []; - this.sendBuffer = []; - this.connected = false; - this.disconnected = true; - this.subEvents(); -} - -/** - * Mix in `Emitter`. - */ - -Emitter(Socket.prototype); - -/** - * Subscribe to open, close and packet events - * - * @api private - */ - -Socket.prototype.subEvents = function() { - var io = this.io; - this.subs = [ - on(io, 'open', bind(this, 'onopen')), - on(io, 'packet', bind(this, 'onpacket')), - on(io, 'close', bind(this, 'onclose')) - ]; -}; - -/** - * Called upon engine `open`. - * - * @api private - */ - -Socket.prototype.open = -Socket.prototype.connect = function(){ - if (this.connected) return this; - - this.io.open(); // ensure open - if ('open' == this.io.readyState) this.onopen(); - return this; -}; - -/** - * Sends a `message` event. - * - * @return {Socket} self - * @api public - */ - -Socket.prototype.send = function(){ - var args = toArray(arguments); - args.unshift('message'); - this.emit.apply(this, args); - return this; -}; - -/** - * Override `emit`. - * If the event is in `events`, it's emitted normally. - * - * @param {String} event name - * @return {Socket} self - * @api public - */ - -Socket.prototype.emit = function(ev){ - if (events.hasOwnProperty(ev)) { - emit.apply(this, arguments); - return this; - } - - var args = toArray(arguments); - var parserType = parser.EVENT; // default - if (hasBin(args)) { parserType = parser.BINARY_EVENT; } // binary - var packet = { type: parserType, data: args }; - - // event ack callback - if ('function' == typeof args[args.length - 1]) { - debug('emitting packet with ack id %d', this.ids); - this.acks[this.ids] = args.pop(); - packet.id = this.ids++; - } - - if (this.connected) { - this.packet(packet); - } else { - this.sendBuffer.push(packet); - } - - return this; -}; - -/** - * Sends a packet. - * - * @param {Object} packet - * @api private - */ - -Socket.prototype.packet = function(packet){ - packet.nsp = this.nsp; - this.io.packet(packet); -}; - -/** - * "Opens" the socket. - * - * @api private - */ - -Socket.prototype.onopen = function(){ - debug('transport is open - connecting'); - - // write connect packet if necessary - if ('/' != this.nsp) { - this.packet({ type: parser.CONNECT }); - } -}; - -/** - * Called upon engine `close`. - * - * @param {String} reason - * @api private - */ - -Socket.prototype.onclose = function(reason){ - debug('close (%s)', reason); - this.connected = false; - this.disconnected = true; - this.emit('disconnect', reason); -}; - -/** - * Called with socket packet. - * - * @param {Object} packet - * @api private - */ - -Socket.prototype.onpacket = function(packet){ - if (packet.nsp != this.nsp) return; - - switch (packet.type) { - case parser.CONNECT: - this.onconnect(); - break; - - case parser.EVENT: - this.onevent(packet); - break; - - case parser.BINARY_EVENT: - this.onevent(packet); - break; - - case parser.ACK: - this.onack(packet); - break; - - case parser.BINARY_ACK: - this.onack(packet); - break; - - case parser.DISCONNECT: - this.ondisconnect(); - break; - - case parser.ERROR: - this.emit('error', packet.data); - break; - } -}; - -/** - * Called upon a server event. - * - * @param {Object} packet - * @api private - */ - -Socket.prototype.onevent = function(packet){ - var args = packet.data || []; - debug('emitting event %j', args); - - if (null != packet.id) { - debug('attaching ack callback to event'); - args.push(this.ack(packet.id)); - } - - if (this.connected) { - emit.apply(this, args); - } else { - this.receiveBuffer.push(args); - } -}; - -/** - * Produces an ack callback to emit with an event. - * - * @api private - */ - -Socket.prototype.ack = function(id){ - var self = this; - var sent = false; - return function(){ - // prevent double callbacks - if (sent) return; - sent = true; - var args = toArray(arguments); - debug('sending ack %j', args); - - var type = hasBin(args) ? parser.BINARY_ACK : parser.ACK; - self.packet({ - type: type, - id: id, - data: args - }); - }; -}; - -/** - * Called upon a server acknowlegement. - * - * @param {Object} packet - * @api private - */ - -Socket.prototype.onack = function(packet){ - debug('calling ack %s with %j', packet.id, packet.data); - var fn = this.acks[packet.id]; - fn.apply(this, packet.data); - delete this.acks[packet.id]; -}; - -/** - * Called upon server connect. - * - * @api private - */ - -Socket.prototype.onconnect = function(){ - this.connected = true; - this.disconnected = false; - this.emit('connect'); - this.emitBuffered(); -}; - -/** - * Emit buffered events (received and emitted). - * - * @api private - */ - -Socket.prototype.emitBuffered = function(){ - var i; - for (i = 0; i < this.receiveBuffer.length; i++) { - emit.apply(this, this.receiveBuffer[i]); - } - this.receiveBuffer = []; - - for (i = 0; i < this.sendBuffer.length; i++) { - this.packet(this.sendBuffer[i]); - } - this.sendBuffer = []; -}; - -/** - * Called upon server disconnect. - * - * @api private - */ - -Socket.prototype.ondisconnect = function(){ - debug('server disconnect (%s)', this.nsp); - this.destroy(); - this.onclose('io server disconnect'); -}; - -/** - * Called upon forced client/server side disconnections, - * this method ensures the manager stops tracking us and - * that reconnections don't get triggered for this. - * - * @api private. - */ - -Socket.prototype.destroy = function(){ - // clean subscriptions to avoid reconnections - for (var i = 0; i < this.subs.length; i++) { - this.subs[i].destroy(); - } - - this.io.destroy(this); -}; - -/** - * Disconnects the socket manually. - * - * @return {Socket} self - * @api public - */ - -Socket.prototype.close = -Socket.prototype.disconnect = function(){ - if (!this.connected) return this; - - debug('performing disconnect (%s)', this.nsp); - this.packet({ type: parser.DISCONNECT }); - - // remove socket from pool - this.destroy(); - - // fire events - this.onclose('io client disconnect'); - return this; -}; - -},{"./on":4,"component-bind":7,"component-emitter":8,"debug":9,"has-binary-data":32,"indexof":36,"socket.io-parser":40,"to-array":43}],6:[function(require,module,exports){ -var global=typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}; -/** - * Module dependencies. - */ - -var parseuri = require('parseuri'); -var debug = require('debug')('socket.io-client:url'); - -/** - * Module exports. - */ - -module.exports = url; - -/** - * URL parser. - * - * @param {String} url - * @param {Object} An object meant to mimic window.location. - * Defaults to window.location. - * @api public - */ - -function url(uri, loc){ - var obj = uri; - - // default to window.location - var loc = loc || global.location; - if (null == uri) uri = loc.protocol + '//' + loc.hostname; - - // relative path support - if ('string' == typeof uri) { - if ('/' == uri.charAt(0)) { - if ('undefined' != typeof loc) { - uri = loc.hostname + uri; - } - } - - if (!/^(https?|wss?):\/\//.test(uri)) { - debug('protocol-less url %s', uri); - if ('undefined' != typeof loc) { - uri = loc.protocol + '//' + uri; - } else { - uri = 'https://' + uri; - } - } - - // parse - debug('parse %s', uri); - obj = parseuri(uri); - } - - // make sure we treat `localhost:80` and `localhost` equally - if (!obj.port) { - if (/^(http|ws)$/.test(obj.protocol)) { - obj.port = '80'; - } - else if (/^(http|ws)s$/.test(obj.protocol)) { - obj.port = '443'; - } - } - - obj.path = obj.path || '/'; - - // define unique id - obj.id = obj.protocol + '://' + obj.host + ':' + obj.port; - // define href - obj.href = obj.protocol + '://' + obj.host + (loc && loc.port == obj.port ? '' : (':' + obj.port)); - - return obj; -} - -},{"debug":9,"parseuri":38}],7:[function(require,module,exports){ -/** - * Slice reference. - */ - -var slice = [].slice; - -/** - * Bind `obj` to `fn`. - * - * @param {Object} obj - * @param {Function|String} fn or string - * @return {Function} - * @api public - */ - -module.exports = function(obj, fn){ - if ('string' == typeof fn) fn = obj[fn]; - if ('function' != typeof fn) throw new Error('bind() requires a function'); - var args = slice.call(arguments, 2); - return function(){ - return fn.apply(obj, args.concat(slice.call(arguments))); - } -}; - -},{}],8:[function(require,module,exports){ - -/** - * Expose `Emitter`. - */ - -module.exports = Emitter; - -/** - * Initialize a new `Emitter`. - * - * @api public - */ - -function Emitter(obj) { - if (obj) return mixin(obj); -}; - -/** - * Mixin the emitter properties. - * - * @param {Object} obj - * @return {Object} - * @api private - */ - -function mixin(obj) { - for (var key in Emitter.prototype) { - obj[key] = Emitter.prototype[key]; - } - return obj; -} - -/** - * Listen on the given `event` with `fn`. - * - * @param {String} event - * @param {Function} fn - * @return {Emitter} - * @api public - */ - -Emitter.prototype.on = -Emitter.prototype.addEventListener = function(event, fn){ - this._callbacks = this._callbacks || {}; - (this._callbacks[event] = this._callbacks[event] || []) - .push(fn); - return this; -}; - -/** - * Adds an `event` listener that will be invoked a single - * time then automatically removed. - * - * @param {String} event - * @param {Function} fn - * @return {Emitter} - * @api public - */ - -Emitter.prototype.once = function(event, fn){ - var self = this; - this._callbacks = this._callbacks || {}; - - function on() { - self.off(event, on); - fn.apply(this, arguments); - } - - on.fn = fn; - this.on(event, on); - return this; -}; - -/** - * Remove the given callback for `event` or all - * registered callbacks. - * - * @param {String} event - * @param {Function} fn - * @return {Emitter} - * @api public - */ - -Emitter.prototype.off = -Emitter.prototype.removeListener = -Emitter.prototype.removeAllListeners = -Emitter.prototype.removeEventListener = function(event, fn){ - this._callbacks = this._callbacks || {}; - - // all - if (0 == arguments.length) { - this._callbacks = {}; - return this; - } - - // specific event - var callbacks = this._callbacks[event]; - if (!callbacks) return this; - - // remove all handlers - if (1 == arguments.length) { - delete this._callbacks[event]; - return this; - } - - // remove specific handler - var cb; - for (var i = 0; i < callbacks.length; i++) { - cb = callbacks[i]; - if (cb === fn || cb.fn === fn) { - callbacks.splice(i, 1); - break; - } - } - return this; -}; - -/** - * Emit `event` with the given args. - * - * @param {String} event - * @param {Mixed} ... - * @return {Emitter} - */ - -Emitter.prototype.emit = function(event){ - this._callbacks = this._callbacks || {}; - var args = [].slice.call(arguments, 1) - , callbacks = this._callbacks[event]; - - if (callbacks) { - callbacks = callbacks.slice(0); - for (var i = 0, len = callbacks.length; i < len; ++i) { - callbacks[i].apply(this, args); - } - } - - return this; -}; - -/** - * Return array of callbacks for `event`. - * - * @param {String} event - * @return {Array} - * @api public - */ - -Emitter.prototype.listeners = function(event){ - this._callbacks = this._callbacks || {}; - return this._callbacks[event] || []; -}; - -/** - * Check if this emitter has `event` handlers. - * - * @param {String} event - * @return {Boolean} - * @api public - */ - -Emitter.prototype.hasListeners = function(event){ - return !! this.listeners(event).length; -}; - -},{}],9:[function(require,module,exports){ - -/** - * Expose `debug()` as the module. - */ - -module.exports = debug; - -/** - * Create a debugger with the given `name`. - * - * @param {String} name - * @return {Type} - * @api public - */ - -function debug(name) { - if (!debug.enabled(name)) return function(){}; - - return function(fmt){ - fmt = coerce(fmt); - - var curr = new Date; - var ms = curr - (debug[name] || curr); - debug[name] = curr; - - fmt = name - + ' ' - + fmt - + ' +' + debug.humanize(ms); - - // This hackery is required for IE8 - // where `console.log` doesn't have 'apply' - window.console - && console.log - && Function.prototype.apply.call(console.log, console, arguments); - } -} - -/** - * The currently active debug mode names. - */ - -debug.names = []; -debug.skips = []; - -/** - * Enables a debug mode by name. This can include modes - * separated by a colon and wildcards. - * - * @param {String} name - * @api public - */ - -debug.enable = function(name) { - try { - localStorage.debug = name; - } catch(e){} - - var split = (name || '').split(/[\s,]+/) - , len = split.length; - - for (var i = 0; i < len; i++) { - name = split[i].replace('*', '.*?'); - if (name[0] === '-') { - debug.skips.push(new RegExp('^' + name.substr(1) + '$')); - } - else { - debug.names.push(new RegExp('^' + name + '$')); - } - } -}; - -/** - * Disable debug output. - * - * @api public - */ - -debug.disable = function(){ - debug.enable(''); -}; - -/** - * Humanize the given `ms`. - * - * @param {Number} m - * @return {String} - * @api private - */ - -debug.humanize = function(ms) { - var sec = 1000 - , min = 60 * 1000 - , hour = 60 * min; - - if (ms >= hour) return (ms / hour).toFixed(1) + 'h'; - if (ms >= min) return (ms / min).toFixed(1) + 'm'; - if (ms >= sec) return (ms / sec | 0) + 's'; - return ms + 'ms'; -}; - -/** - * Returns true if the given mode name is enabled, false otherwise. - * - * @param {String} name - * @return {Boolean} - * @api public - */ - -debug.enabled = function(name) { - for (var i = 0, len = debug.skips.length; i < len; i++) { - if (debug.skips[i].test(name)) { - return false; - } - } - for (var i = 0, len = debug.names.length; i < len; i++) { - if (debug.names[i].test(name)) { - return true; - } - } - return false; -}; - -/** - * Coerce `val`. - */ - -function coerce(val) { - if (val instanceof Error) return val.stack || val.message; - return val; -} - -// persist - -try { - if (window.localStorage) debug.enable(localStorage.debug); -} catch(e){} - -},{}],10:[function(require,module,exports){ - -/** - * Module dependencies. - */ - -var index = require('indexof'); - -/** - * Expose `Emitter`. - */ - -module.exports = Emitter; - -/** - * Initialize a new `Emitter`. - * - * @api public - */ - -function Emitter(obj) { - if (obj) return mixin(obj); -}; - -/** - * Mixin the emitter properties. - * - * @param {Object} obj - * @return {Object} - * @api private - */ - -function mixin(obj) { - for (var key in Emitter.prototype) { - obj[key] = Emitter.prototype[key]; - } - return obj; -} - -/** - * Listen on the given `event` with `fn`. - * - * @param {String} event - * @param {Function} fn - * @return {Emitter} - * @api public - */ - -Emitter.prototype.on = function(event, fn){ - this._callbacks = this._callbacks || {}; - (this._callbacks[event] = this._callbacks[event] || []) - .push(fn); - return this; -}; - -/** - * Adds an `event` listener that will be invoked a single - * time then automatically removed. - * - * @param {String} event - * @param {Function} fn - * @return {Emitter} - * @api public - */ - -Emitter.prototype.once = function(event, fn){ - var self = this; - this._callbacks = this._callbacks || {}; - - function on() { - self.off(event, on); - fn.apply(this, arguments); - } - - fn._off = on; - this.on(event, on); - return this; -}; - -/** - * Remove the given callback for `event` or all - * registered callbacks. - * - * @param {String} event - * @param {Function} fn - * @return {Emitter} - * @api public - */ - -Emitter.prototype.off = -Emitter.prototype.removeListener = -Emitter.prototype.removeAllListeners = function(event, fn){ - this._callbacks = this._callbacks || {}; - - // all - if (0 == arguments.length) { - this._callbacks = {}; - return this; - } - - // specific event - var callbacks = this._callbacks[event]; - if (!callbacks) return this; - - // remove all handlers - if (1 == arguments.length) { - delete this._callbacks[event]; - return this; - } - - // remove specific handler - var i = index(callbacks, fn._off || fn); - if (~i) callbacks.splice(i, 1); - return this; -}; - -/** - * Emit `event` with the given args. - * - * @param {String} event - * @param {Mixed} ... - * @return {Emitter} - */ - -Emitter.prototype.emit = function(event){ - this._callbacks = this._callbacks || {}; - var args = [].slice.call(arguments, 1) - , callbacks = this._callbacks[event]; - - if (callbacks) { - callbacks = callbacks.slice(0); - for (var i = 0, len = callbacks.length; i < len; ++i) { - callbacks[i].apply(this, args); - } - } - - return this; -}; - -/** - * Return array of callbacks for `event`. - * - * @param {String} event - * @return {Array} - * @api public - */ - -Emitter.prototype.listeners = function(event){ - this._callbacks = this._callbacks || {}; - return this._callbacks[event] || []; -}; - -/** - * Check if this emitter has `event` handlers. - * - * @param {String} event - * @return {Boolean} - * @api public - */ - -Emitter.prototype.hasListeners = function(event){ - return !! this.listeners(event).length; -}; - -},{"indexof":36}],11:[function(require,module,exports){ - -module.exports = require('./lib/'); - -},{"./lib/":12}],12:[function(require,module,exports){ - -module.exports = require('./socket'); - -/** - * Exports parser - * - * @api public - * - */ -module.exports.parser = require('engine.io-parser'); - -},{"./socket":13,"engine.io-parser":22}],13:[function(require,module,exports){ -var global=typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {};/** - * Module dependencies. - */ - -var transports = require('./transports'); -var Emitter = require('component-emitter'); -var debug = require('debug')('engine.io-client:socket'); -var index = require('indexof'); -var parser = require('engine.io-parser'); -var parseuri = require('parseuri'); -var parsejson = require('parsejson'); -var parseqs = require('parseqs'); - -/** - * Module exports. - */ - -module.exports = Socket; - -/** - * Noop function. - * - * @api private - */ - -function noop(){} - -/** - * Socket constructor. - * - * @param {String|Object} uri or options - * @param {Object} options - * @api public - */ - -function Socket(uri, opts){ - if (!(this instanceof Socket)) return new Socket(uri, opts); - - opts = opts || {}; - - if (uri && 'object' == typeof uri) { - opts = uri; - uri = null; - } - - if (uri) { - uri = parseuri(uri); - opts.host = uri.host; - opts.secure = uri.protocol == 'https' || uri.protocol == 'wss'; - opts.port = uri.port; - if (uri.query) opts.query = uri.query; - } - - this.secure = null != opts.secure ? opts.secure : - (global.location && 'https:' == location.protocol); - - if (opts.host) { - var pieces = opts.host.split(':'); - opts.hostname = pieces.shift(); - if (pieces.length) opts.port = pieces.pop(); - } - - this.agent = opts.agent || false; - this.hostname = opts.hostname || - (global.location ? location.hostname : 'localhost'); - this.port = opts.port || (global.location && location.port ? - location.port : - (this.secure ? 443 : 80)); - this.query = opts.query || {}; - if ('string' == typeof this.query) this.query = parseqs.decode(this.query); - this.upgrade = false !== opts.upgrade; - this.path = (opts.path || '/engine.io').replace(/\/$/, '') + '/'; - this.forceJSONP = !!opts.forceJSONP; - this.forceBase64 = !!opts.forceBase64; - this.timestampParam = opts.timestampParam || 't'; - this.timestampRequests = opts.timestampRequests; - this.transports = opts.transports || ['polling', 'websocket']; - this.readyState = ''; - this.writeBuffer = []; - this.callbackBuffer = []; - this.policyPort = opts.policyPort || 843; - this.rememberUpgrade = opts.rememberUpgrade || false; - this.open(); - this.binaryType = null; - this.onlyBinaryUpgrades = opts.onlyBinaryUpgrades; -} - -Socket.priorWebsocketSuccess = false; - -/** - * Mix in `Emitter`. - */ - -Emitter(Socket.prototype); - -/** - * Protocol version. - * - * @api public - */ - -Socket.protocol = parser.protocol; // this is an int - -/** - * Expose deps for legacy compatibility - * and standalone browser access. - */ - -Socket.Socket = Socket; -Socket.Transport = require('./transport'); -Socket.transports = require('./transports'); -Socket.parser = require('engine.io-parser'); - -/** - * Creates transport of the given type. - * - * @param {String} transport name - * @return {Transport} - * @api private - */ - -Socket.prototype.createTransport = function (name) { - debug('creating transport "%s"', name); - var query = clone(this.query); - - // append engine.io protocol identifier - query.EIO = parser.protocol; - - // transport name - query.transport = name; - - // session id if we already have one - if (this.id) query.sid = this.id; - - var transport = new transports[name]({ - agent: this.agent, - hostname: this.hostname, - port: this.port, - secure: this.secure, - path: this.path, - query: query, - forceJSONP: this.forceJSONP, - forceBase64: this.forceBase64, - timestampRequests: this.timestampRequests, - timestampParam: this.timestampParam, - policyPort: this.policyPort, - socket: this - }); - - return transport; -}; - -function clone (obj) { - var o = {}; - for (var i in obj) { - if (obj.hasOwnProperty(i)) { - o[i] = obj[i]; - } - } - return o; -} - -/** - * Initializes transport to use and starts probe. - * - * @api private - */ -Socket.prototype.open = function () { - var transport; - if (this.rememberUpgrade && Socket.priorWebsocketSuccess && this.transports.indexOf('websocket') != -1) { - transport = 'websocket'; - } else { - transport = this.transports[0]; - } - this.readyState = 'opening'; - var transport = this.createTransport(transport); - transport.open(); - this.setTransport(transport); -}; - -/** - * Sets the current transport. Disables the existing one (if any). - * - * @api private - */ - -Socket.prototype.setTransport = function(transport){ - debug('setting transport %s', transport.name); - var self = this; - - if (this.transport) { - debug('clearing existing transport %s', this.transport.name); - this.transport.removeAllListeners(); - } - - // set up transport - this.transport = transport; - - // set up transport listeners - transport - .on('drain', function(){ - self.onDrain(); - }) - .on('packet', function(packet){ - self.onPacket(packet); - }) - .on('error', function(e){ - self.onError(e); - }) - .on('close', function(){ - self.onClose('transport close'); - }); -}; - -/** - * Probes a transport. - * - * @param {String} transport name - * @api private - */ - -Socket.prototype.probe = function (name) { - debug('probing transport "%s"', name); - var transport = this.createTransport(name, { probe: 1 }) - , failed = false - , self = this; - - Socket.priorWebsocketSuccess = false; - - function onTransportOpen(){ - if (self.onlyBinaryUpgrades) { - var upgradeLosesBinary = !this.supportsBinary && self.transport.supportsBinary; - failed = failed || upgradeLosesBinary; - } - if (failed) return; - - debug('probe transport "%s" opened', name); - transport.send([{ type: 'ping', data: 'probe' }]); - transport.once('packet', function (msg) { - if (failed) return; - if ('pong' == msg.type && 'probe' == msg.data) { - debug('probe transport "%s" pong', name); - self.upgrading = true; - self.emit('upgrading', transport); - Socket.priorWebsocketSuccess = 'websocket' == transport.name; - - debug('pausing current transport "%s"', self.transport.name); - self.transport.pause(function () { - if (failed) return; - if ('closed' == self.readyState || 'closing' == self.readyState) { - return; - } - debug('changing transport and sending upgrade packet'); - - cleanup(); - - self.setTransport(transport); - transport.send([{ type: 'upgrade' }]); - self.emit('upgrade', transport); - transport = null; - self.upgrading = false; - self.flush(); - }); - } else { - debug('probe transport "%s" failed', name); - var err = new Error('probe error'); - err.transport = transport.name; - self.emit('upgradeError', err); - } - }); - } - - function freezeTransport() { - if (failed) return; - - // Any callback called by transport should be ignored since now - failed = true; - - cleanup(); - - transport.close(); - transport = null; - } - - //Handle any error that happens while probing - function onerror(err) { - var error = new Error('probe error: ' + err); - error.transport = transport.name; - - freezeTransport(); - - debug('probe transport "%s" failed because of error: %s', name, err); - - self.emit('upgradeError', error); - } - - function onTransportClose(){ - onerror("transport closed"); - } - - //When the socket is closed while we're probing - function onclose(){ - onerror("socket closed"); - } - - //When the socket is upgraded while we're probing - function onupgrade(to){ - if (transport && to.name != transport.name) { - debug('"%s" works - aborting "%s"', to.name, transport.name); - freezeTransport(); - } - } - - //Remove all listeners on the transport and on self - function cleanup(){ - transport.removeListener('open', onTransportOpen); - transport.removeListener('error', onerror); - transport.removeListener('close', onTransportClose); - self.removeListener('close', onclose); - self.removeListener('upgrading', onupgrade); - } - - transport.once('open', onTransportOpen); - transport.once('error', onerror); - transport.once('close', onTransportClose); - - this.once('close', onclose); - this.once('upgrading', onupgrade); - - transport.open(); - -}; - -/** - * Called when connection is deemed open. - * - * @api public - */ - -Socket.prototype.onOpen = function () { - debug('socket open'); - this.readyState = 'open'; - Socket.priorWebsocketSuccess = 'websocket' == this.transport.name; - this.emit('open'); - this.flush(); - - // we check for `readyState` in case an `open` - // listener already closed the socket - if ('open' == this.readyState && this.upgrade && this.transport.pause) { - debug('starting upgrade probes'); - for (var i = 0, l = this.upgrades.length; i < l; i++) { - this.probe(this.upgrades[i]); - } - } -}; - -/** - * Handles a packet. - * - * @api private - */ - -Socket.prototype.onPacket = function (packet) { - if ('opening' == this.readyState || 'open' == this.readyState) { - debug('socket receive: type "%s", data "%s"', packet.type, packet.data); - - this.emit('packet', packet); - - // Socket is live - any packet counts - this.emit('heartbeat'); - - switch (packet.type) { - case 'open': - this.onHandshake(parsejson(packet.data)); - break; - - case 'pong': - this.setPing(); - break; - - case 'error': - var err = new Error('server error'); - err.code = packet.data; - this.emit('error', err); - break; - - case 'message': - this.emit('data', packet.data); - this.emit('message', packet.data); - break; - } - } else { - debug('packet received with socket readyState "%s"', this.readyState); - } -}; - -/** - * Called upon handshake completion. - * - * @param {Object} handshake obj - * @api private - */ - -Socket.prototype.onHandshake = function (data) { - this.emit('handshake', data); - this.id = data.sid; - this.transport.query.sid = data.sid; - this.upgrades = this.filterUpgrades(data.upgrades); - this.pingInterval = data.pingInterval; - this.pingTimeout = data.pingTimeout; - this.onOpen(); - // In case open handler closes socket - if ('closed' == this.readyState) return; - this.setPing(); - - // Prolong liveness of socket on heartbeat - this.removeListener('heartbeat', this.onHeartbeat); - this.on('heartbeat', this.onHeartbeat); -}; - -/** - * Resets ping timeout. - * - * @api private - */ - -Socket.prototype.onHeartbeat = function (timeout) { - clearTimeout(this.pingTimeoutTimer); - var self = this; - self.pingTimeoutTimer = setTimeout(function () { - if ('closed' == self.readyState) return; - self.onClose('ping timeout'); - }, timeout || (self.pingInterval + self.pingTimeout)); -}; - -/** - * Pings server every `this.pingInterval` and expects response - * within `this.pingTimeout` or closes connection. - * - * @api private - */ - -Socket.prototype.setPing = function () { - var self = this; - clearTimeout(self.pingIntervalTimer); - self.pingIntervalTimer = setTimeout(function () { - debug('writing ping packet - expecting pong within %sms', self.pingTimeout); - self.ping(); - self.onHeartbeat(self.pingTimeout); - }, self.pingInterval); -}; - -/** -* Sends a ping packet. -* -* @api public -*/ - -Socket.prototype.ping = function () { - this.sendPacket('ping'); -}; - -/** - * Called on `drain` event - * - * @api private - */ - -Socket.prototype.onDrain = function() { - for (var i = 0; i < this.prevBufferLen; i++) { - if (this.callbackBuffer[i]) { - this.callbackBuffer[i](); - } - } - - this.writeBuffer.splice(0, this.prevBufferLen); - this.callbackBuffer.splice(0, this.prevBufferLen); - - // setting prevBufferLen = 0 is very important - // for example, when upgrading, upgrade packet is sent over, - // and a nonzero prevBufferLen could cause problems on `drain` - this.prevBufferLen = 0; - - if (this.writeBuffer.length == 0) { - this.emit('drain'); - } else { - this.flush(); - } -}; - -/** - * Flush write buffers. - * - * @api private - */ - -Socket.prototype.flush = function () { - if ('closed' != this.readyState && this.transport.writable && - !this.upgrading && this.writeBuffer.length) { - debug('flushing %d packets in socket', this.writeBuffer.length); - this.transport.send(this.writeBuffer); - // keep track of current length of writeBuffer - // splice writeBuffer and callbackBuffer on `drain` - this.prevBufferLen = this.writeBuffer.length; - this.emit('flush'); - } -}; - -/** - * Sends a message. - * - * @param {String} message. - * @param {Function} callback function. - * @return {Socket} for chaining. - * @api public - */ - -Socket.prototype.write = -Socket.prototype.send = function (msg, fn) { - this.sendPacket('message', msg, fn); - return this; -}; - -/** - * Sends a packet. - * - * @param {String} packet type. - * @param {String} data. - * @param {Function} callback function. - * @api private - */ - -Socket.prototype.sendPacket = function (type, data, fn) { - var packet = { type: type, data: data }; - this.emit('packetCreate', packet); - this.writeBuffer.push(packet); - this.callbackBuffer.push(fn); - this.flush(); -}; - -/** - * Closes the connection. - * - * @api private - */ - -Socket.prototype.close = function () { - if ('opening' == this.readyState || 'open' == this.readyState) { - this.onClose('forced close'); - debug('socket closing - telling transport to close'); - this.transport.close(); - } - - return this; -}; - -/** - * Called upon transport error - * - * @api private - */ - -Socket.prototype.onError = function (err) { - debug('socket error %j', err); - Socket.priorWebsocketSuccess = false; - this.emit('error', err); - this.onClose('transport error', err); -}; - -/** - * Called upon transport close. - * - * @api private - */ - -Socket.prototype.onClose = function (reason, desc) { - if ('opening' == this.readyState || 'open' == this.readyState) { - debug('socket close with reason: "%s"', reason); - var self = this; - - // clear timers - clearTimeout(this.pingIntervalTimer); - clearTimeout(this.pingTimeoutTimer); - - // clean buffers in next tick, so developers can still - // grab the buffers on `close` event - setTimeout(function() { - self.writeBuffer = []; - self.callbackBuffer = []; - self.prevBufferLen = 0; - }, 0); - - // stop event from firing again for transport - this.transport.removeAllListeners('close'); - - // ensure transport won't stay open - this.transport.close(); - - // ignore further transport communication - this.transport.removeAllListeners(); - - // set ready state - this.readyState = 'closed'; - - // clear session id - this.id = null; - - // emit close event - this.emit('close', reason, desc); - } -}; - -/** - * Filters upgrades, returning only those matching client transports. - * - * @param {Array} server upgrades - * @api private - * - */ - -Socket.prototype.filterUpgrades = function (upgrades) { - var filteredUpgrades = []; - for (var i = 0, j = upgrades.length; i